Parameters of numerical examples.
\\n\\n
\\n"}]',published:!0,mainMedia:{caption:"Milestone",originalUrl:"/media/original/124"}},components:[{type:"htmlEditorComponent",content:'
Barely three months into the new year and we are happy to announce a monumental milestone reached - 150 million downloads.
\n\nThis achievement solidifies IntechOpen’s place as a pioneer in Open Access publishing and the home to some of the most relevant scientific research available through Open Access.
\n\nWe are so proud to have worked with so many bright minds throughout the years who have helped us spread knowledge through the power of Open Access and we look forward to continuing to support some of the greatest thinkers of our day.
\n\nThank you for making IntechOpen your place of learning, sharing, and discovery, and here’s to 150 million more!
\n\n\n\n\n'}],latestNews:[{slug:"intechopen-supports-asapbio-s-new-initiative-publish-your-reviews-20220729",title:"IntechOpen Supports ASAPbio’s New Initiative Publish Your Reviews"},{slug:"webinar-introduction-to-open-science-wednesday-18-may-1-pm-cest-20220518",title:"Webinar: Introduction to Open Science | Wednesday 18 May, 1 PM CEST"},{slug:"step-in-the-right-direction-intechopen-launches-a-portfolio-of-open-science-journals-20220414",title:"Step in the Right Direction: IntechOpen Launches a Portfolio of Open Science Journals"},{slug:"let-s-meet-at-london-book-fair-5-7-april-2022-olympia-london-20220321",title:"Let’s meet at London Book Fair, 5-7 April 2022, Olympia London"},{slug:"50-books-published-as-part-of-intechopen-and-knowledge-unlatched-ku-collaboration-20220316",title:"50 Books published as part of IntechOpen and Knowledge Unlatched (KU) Collaboration"},{slug:"intechopen-joins-the-united-nations-sustainable-development-goals-publishers-compact-20221702",title:"IntechOpen joins the United Nations Sustainable Development Goals Publishers Compact"},{slug:"intechopen-signs-exclusive-representation-agreement-with-lsr-libros-servicios-y-representaciones-s-a-de-c-v-20211123",title:"IntechOpen Signs Exclusive Representation Agreement with LSR Libros Servicios y Representaciones S.A. de C.V"},{slug:"intechopen-expands-partnership-with-research4life-20211110",title:"IntechOpen Expands Partnership with Research4Life"}]},book:{item:{type:"book",id:"6230",leadTitle:null,fullTitle:"Topics in Splines and Applications",title:"Topics in Splines and Applications",subtitle:null,reviewType:"peer-reviewed",abstract:"Splines provide a significant tool for the design of computationally economical curves and surfaces for the construction of various objects like automobiles, ship hulls, airplane fuselages and wings, propeller blades, shoe insoles, bottles, etc. It also contributes in the description of geological, physical, statistical, and even medical phenomena. Spline methods have proven to be indispensable in a variety of modern industries, including computer vision, robotics, signal and image processing, visualization, textile, graphic designs, and even media. This book aims to provide a valuable source on splines and their applications. It focuses on collecting and disseminating information in various disciplines including computer-aided geometric design, computer graphics, data visualization, data fitting, power systems, clinical and epidemiologic studies, disease detection, regression curves, social media, and biological studies. The book is useful for researchers, scientists, practitioners, and many others who seek state-of-the-art techniques and applications using splines. It is also useful for undergraduate senior students as well as graduate students in the areas of computer science, engineering, health science, statistics, and mathematics. Each chapter also provides useful information on software developments and their extensions.",isbn:"978-1-78923-251-6",printIsbn:"978-1-78923-250-9",pdfIsbn:"978-1-83881-350-5",doi:"10.5772/intechopen.68737",price:119,priceEur:129,priceUsd:155,slug:"topics-in-splines-and-applications",numberOfPages:160,isOpenForSubmission:!1,isInWos:null,isInBkci:!1,hash:"93059c7907be129c419e4f9960b4e9c3",bookSignature:"Young Kinh-Nhue Truong and Muhammad Sarfraz",publishedDate:"June 6th 2018",coverURL:"https://cdn.intechopen.com/books/images_new/6230.jpg",numberOfDownloads:7577,numberOfWosCitations:4,numberOfCrossrefCitations:4,numberOfCrossrefCitationsByBook:0,numberOfDimensionsCitations:8,numberOfDimensionsCitationsByBook:0,hasAltmetrics:0,numberOfTotalCitations:16,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"April 13th 2017",dateEndSecondStepPublish:"May 4th 2017",dateEndThirdStepPublish:"December 3rd 2017",dateEndFourthStepPublish:"January 3rd 2018",dateEndFifthStepPublish:"March 3rd 2018",currentStepOfPublishingProcess:5,indexedIn:"1,2,3,4,5,6,7",editedByType:"Edited by",kuFlag:!1,featuredMarkup:null,editors:[{id:"207517",title:"Dr.",name:"Young Kinh-Nhue",middleName:null,surname:"Truong",slug:"young-kinh-nhue-truong",fullName:"Young Kinh-Nhue Truong",profilePictureURL:"https://mts.intechopen.com/storage/users/207517/images/system/207517.jpg",biography:"Young Kinh-Nhue Truong, Ph.D., is a professor of Biostatistics at the University of North Carolina at Chapel Hill. His research expertise includes statistical learning, functional modeling, time series, Spatio-temporal data analysis, and event history analysis. He has contributed significantly in the areas of statistical time series/longitudinal modeling using splines, window or kernel-based smoothing methods, and wavelets. His current research focuses mainly on Spatio-temporal data analysis with the aim to spatially localize dynamic processes in the functional magnetic resonance imaging (fMRI) or electroencephalography (EEG) human brain data. He is also interested in developing statistical inference for group comparison based on human brain imaging data and methods for analyzing neuro-spike train data. His teaching and research experience in linear mixed modeling has provided new insights and approaches to many statistical analyses for handling between- and within-subject variability.",institutionString:"University of North Carolina at Chapel Hill",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"0",totalChapterViews:"0",totalEditedBooks:"1",institution:{name:"University of North Carolina at Chapel Hill",institutionURL:null,country:{name:"United States of America"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,coeditorOne:{id:"215610",title:"Prof.",name:"Muhammad",middleName:null,surname:"Sarfraz",slug:"muhammad-sarfraz",fullName:"Muhammad Sarfraz",profilePictureURL:"https://mts.intechopen.com/storage/users/215610/images/system/215610.jpeg",biography:"Muhammad Sarfraz is a professor in the Department of Information Science, Kuwait University. His research interests include computer graphics, computer vision, image processing, machine learning, pattern recognition, soft computing, data science, intelligent systems, information technology, and information systems. Prof. Sarfraz has been a keynote/invited speaker on various platforms around the globe. He has advised various students for their MSc and Ph.D. theses. He has published more than 400 publications as books, journal articles, and conference papers. He is a member of various professional societies and a chair and member of the International Advisory Committees and Organizing Committees of various international conferences. Prof. Sarfraz is also an editor-in-chief and editor of various international journals.",institutionString:"Kuwait University",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"3",totalChapterViews:"0",totalEditedBooks:"5",institution:{name:"Kuwait University",institutionURL:null,country:{name:"Kuwait"}}},coeditorTwo:null,coeditorThree:null,coeditorFour:null,coeditorFive:null,topics:[{id:"1407",title:"Applied Mathematics",slug:"numerical-analysis-and-scientific-computing-applied-mathematics"}],chapters:[{id:"60363",title:"Scalar and Parametric Spline Curves and Surfaces",doi:"10.5772/intechopen.74929",slug:"scalar-and-parametric-spline-curves-and-surfaces",totalDownloads:1070,totalCrossrefCites:1,totalDimensionsCites:1,hasAltmetrics:0,abstract:"A common engineering task consists of interpolating a set of discrete points that arise from measurements and experiments. Another traditional requirement implies creating a curve that mimics a given array of points, namely, a polyline. Any of these problems require building an analytical representation of the given discrete set of points. If the geometrical shape represented by the input polyline is complicated, then we may expect that a global interpolant or polynomial will be of a high degree, to honor all imposed constraints, which makes its use prohibited. Indeed, a global interpolant often experiences inflection points and sudden changes in curvature. To avoid these drawbacks, we often seek solving the interpolation/approximation problem using piecewise polynomial functions called “splines.”",signatures:"Horacio Florez and Belsay Borges",downloadPdfUrl:"/chapter/pdf-download/60363",previewPdfUrl:"/chapter/pdf-preview/60363",authors:[{id:"209163",title:"Ph.D.",name:"Horacio",surname:"Florez",slug:"horacio-florez",fullName:"Horacio Florez"},{id:"244249",title:"Dr.",name:"Belsay",surname:"Borges",slug:"belsay-borges",fullName:"Belsay Borges"}],corrections:null},{id:"60099",title:"An Algorithm Based on the Continuous Wavelet Transform with Splines for the Automatic Measurement of QT Dispersion: Validation and Application in Chronic Kidney Disease",doi:"10.5772/intechopen.74864",slug:"an-algorithm-based-on-the-continuous-wavelet-transform-with-splines-for-the-automatic-measurement-of",totalDownloads:1001,totalCrossrefCites:0,totalDimensionsCites:1,hasAltmetrics:0,abstract:"Chronic kidney disease (CKD) is considered a risk factor for the development of cardiovascular disease. QT interval is an electrocardiographic parameter that quantifies the duration of ventricular repolarization. An increase of its spatial variability measured from the selected leads of a standard electrocardiogram (ECG), named QT dispersion (QTd), is considered a risk factor for malign ventricular arrhythmias and sudden death in the CKD. An algorithm for automatic measurement of QTd in the ECG leads DI, aVF and V2 using the continuous wavelet transform with splines is presented. Validation of QRS complex detection has been done on records from MIT-BIH database, and the accuracy is 99.5%. Validation of detection of QRS wave onset and T wave end has been done on records from CSE and QT databases, and the measurements were within the tolerance limits for deviations with respect to the manual measurements defined by the experts. The algorithm was applied in two studies. In the first study, QTd was evaluated in normal subjects and patients with CKD. In the second study, QTd was analyzed in patients with CKD before, during and after the hemodialysis treatment. In both studies, the algorithm had a good performance for the QTd analysis.",signatures:"María de Lourdes Corzo-Cuesta and Carlos Alvarado-Serrano",downloadPdfUrl:"/chapter/pdf-download/60099",previewPdfUrl:"/chapter/pdf-preview/60099",authors:[{id:"41163",title:"Dr.",name:"Carlos",surname:"Alvarado-Serrano",slug:"carlos-alvarado-serrano",fullName:"Carlos Alvarado-Serrano"},{id:"210387",title:"MSc.",name:"María De Lourdes",surname:"Corzo-Cuesta",slug:"maria-de-lourdes-corzo-cuesta",fullName:"María De Lourdes Corzo-Cuesta"}],corrections:null},{id:"60170",title:"Multivariate Adaptive Regression Splines in Standard Cell Characterization for Nanometer Technology in Semiconductor",doi:"10.5772/intechopen.74854",slug:"multivariate-adaptive-regression-splines-in-standard-cell-characterization-for-nanometer-technology-",totalDownloads:986,totalCrossrefCites:1,totalDimensionsCites:4,hasAltmetrics:0,abstract:"Multivariate adaptive regression splines (MARSP) is a nonparametric regression method. It is an adaptive procedure which does not have any predetermined regression model. With that said, the model structure of MARSP is constructed dynamically and adaptively according to the information derived from the data. Because of its ability to capture essential nonlinearities and interactions, MARSP is considered as a great fit for high-dimension problems. This chapter gives an application of MARSP in semiconductor field, more specifically, in standard cell characterization. The objective of standard cell characterization is to create a set of high-quality models of a standard cell library that accurately and efficiently capture cell behaviors. In this chapter, the MARSP method is employed to characterize the gate delay as a function of many parameters including process-voltage-temperature parameters. Due to its ability of capturing essential nonlinearities and interactions, MARSP method helps to achieve significant accuracy improvement.",signatures:"Taizhi Liu",downloadPdfUrl:"/chapter/pdf-download/60170",previewPdfUrl:"/chapter/pdf-preview/60170",authors:[{id:"209988",title:"Dr.",name:"Taizhi",surname:"Liu",slug:"taizhi-liu",fullName:"Taizhi Liu"}],corrections:null},{id:"61455",title:"Smoothing Spline ANOVA Models and their Applications in Complex and Massive Datasets",doi:"10.5772/intechopen.75861",slug:"smoothing-spline-anova-models-and-their-applications-in-complex-and-massive-datasets",totalDownloads:1190,totalCrossrefCites:1,totalDimensionsCites:1,hasAltmetrics:0,abstract:"Complex and massive datasets can be easily accessed using the newly developed data acquisition technology. In spite of the fact that the smoothing spline ANOVA models have proven to be useful in a variety of fields, these datasets impose the challenges on the applications of the models. In this chapter, we present a selected review of the smoothing spline ANOVA models and highlight some challenges and opportunities in massive datasets. We review two approaches to significantly reduce the computational costs of fitting the model. One real case study is used to illustrate the performance of the reviewed methods.",signatures:"Jingyi Zhang, Honghe Jin, Ye Wang, Xiaoxiao Sun, Ping Ma and\nWenxuan Zhong",downloadPdfUrl:"/chapter/pdf-download/61455",previewPdfUrl:"/chapter/pdf-preview/61455",authors:[{id:"210386",title:"Prof.",name:"Ping",surname:"Ma",slug:"ping-ma",fullName:"Ping Ma"},{id:"210393",title:"Ph.D. Student",name:"Jingyi",surname:"Zhang",slug:"jingyi-zhang",fullName:"Jingyi Zhang"},{id:"210394",title:"Mr.",name:"Ye",surname:"Wang",slug:"ye-wang",fullName:"Ye Wang"},{id:"210395",title:"Mr.",name:"Honghe",surname:"Jin",slug:"honghe-jin",fullName:"Honghe Jin"},{id:"210396",title:"Mr.",name:"Xiaoxiao",surname:"Sun",slug:"xiaoxiao-sun",fullName:"Xiaoxiao Sun"},{id:"210397",title:"Dr.",name:"Wenxuan",surname:"Zhong",slug:"wenxuan-zhong",fullName:"Wenxuan Zhong"}],corrections:null},{id:"60692",title:"Model Testing Based on Regression Spline",doi:"10.5772/intechopen.74858",slug:"model-testing-based-on-regression-spline",totalDownloads:943,totalCrossrefCites:0,totalDimensionsCites:0,hasAltmetrics:0,abstract:"Tests based on regression spline are developed in this chapter for testing nonparametric functions in nonparametric, partial linear and varying-coefficient models, respectively. These models are more flexible than linear regression model. However, one important problem is if it is really necessary to use such complex models which contain nonparametric functions. For this purpose, p-values for testing the linearity and constancy of the nonparametric functions are established based on regression spline and fiducial method. In the application of spline-based method, the determination of knots is difficult but plays an important role in inferring regression curve. In order to infer the nonparametric regression at different smoothing levels (scales) and locations, multi-scale smoothing methods based on regression spline are developed to test the structures of the regression curve and compare multiple regression curves. It could sidestep the determination of knots; meanwhile, it could give a more reliable result in using the spline-based method.",signatures:"Na Li",downloadPdfUrl:"/chapter/pdf-download/60692",previewPdfUrl:"/chapter/pdf-preview/60692",authors:[{id:"210317",title:"Dr.",name:"Na",surname:"Li",slug:"na-li",fullName:"Na Li"}],corrections:null},{id:"60798",title:"Penalized Spline Joint Models for Longitudinal and Time-To-Event Data",doi:"10.5772/intechopen.75975",slug:"penalized-spline-joint-models-for-longitudinal-and-time-to-event-data",totalDownloads:925,totalCrossrefCites:0,totalDimensionsCites:0,hasAltmetrics:0,abstract:"The joint models for longitudinal data and time-to-event data have recently received numerous attention in clinical and epidemiologic studies. Our interest is in modeling the relationship between event time outcomes and internal time-dependent covariates. In practice, the longitudinal responses often show non-linear and fluctuated curves. Therefore, the main aim of this chapter is to use penalized splines with a truncated polynomial basis to parameterize the non-linear longitudinal process. Then, the linear mixed effects model is applied to subject-specific curves and to control the smoothing. The association between the dropout process and longitudinal outcomes is modeled through a proportional hazard model. Two types of baseline risk functions are considered, namely a Gompertz distribution and a piecewise constant model. The resulting models are referred to as penalized spline joint models; an extension of the standard linear joint models.",signatures:"Huong Thi Thu Pham and Hoa Pham",downloadPdfUrl:"/chapter/pdf-download/60798",previewPdfUrl:"/chapter/pdf-preview/60798",authors:[{id:"238040",title:"Ph.D.",name:"Huong",surname:"Pham",slug:"huong-pham",fullName:"Huong Pham"},{id:"238041",title:"Dr.",name:"Hoa",surname:"Pham",slug:"hoa-pham",fullName:"Hoa Pham"}],corrections:null},{id:"59783",title:"Application of Cubic Spline Interpolation Technique in Power Systems: A Review",doi:"10.5772/intechopen.74853",slug:"application-of-cubic-spline-interpolation-technique-in-power-systems-a-review",totalDownloads:1465,totalCrossrefCites:1,totalDimensionsCites:1,hasAltmetrics:0,abstract:"In this chapter, a comprehensive review is made on the application of cubic spline interpolation techniques in the field of power systems. Domains like available transfer capability (ATC), electric arc furnace modeling, static var. compensation, voltage stability margin, and market power determination in deregulated electricity market are taken as samples to illustrate the significance of cubic spline interpolation.",signatures:"Akhil Prasad, Atul Manmohan, Prabhakar Karthikeyan Shanmugam\nand Kothari D.P.",downloadPdfUrl:"/chapter/pdf-download/59783",previewPdfUrl:"/chapter/pdf-preview/59783",authors:[{id:"30630",title:"Prof.",name:"Prabhakar",surname:"Karthikeyan Shanmugam",slug:"prabhakar-karthikeyan-shanmugam",fullName:"Prabhakar Karthikeyan Shanmugam"},{id:"209237",title:"Mr.",name:"Akhil",surname:"Prasad",slug:"akhil-prasad",fullName:"Akhil Prasad"},{id:"209238",title:"Mr.",name:"Atul",surname:"Manmohan",slug:"atul-manmohan",fullName:"Atul Manmohan"},{id:"217443",title:"Dr.",name:"Kothari",surname:"D.P",slug:"kothari-d.p",fullName:"Kothari D.P"}],corrections:null}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},subseries:null,tags:null},relatedBooks:[{type:"book",id:"6138",title:"Time Series Analysis and Applications",subtitle:null,isOpenForSubmission:!1,hash:"d33ee38578b81585416062fea4979bbf",slug:"time-series-analysis-and-applications",bookSignature:"Nawaz Mohamudally",coverURL:"https://cdn.intechopen.com/books/images_new/6138.jpg",editedByType:"Edited by",editors:[{id:"119486",title:"Dr.",name:"Nawaz",surname:"Mohamudally",slug:"nawaz-mohamudally",fullName:"Nawaz Mohamudally"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9966",title:"Dynamic Data Assimilation",subtitle:"Beating the Uncertainties",isOpenForSubmission:!1,hash:"e7fde2a36354a2f5a4282fdf9c743380",slug:"dynamic-data-assimilation-beating-the-uncertainties",bookSignature:"Dinesh G. Harkut",coverURL:"https://cdn.intechopen.com/books/images_new/9966.jpg",editedByType:"Edited by",editors:[{id:"216122",title:"Dr.",name:"Dinesh G.",surname:"Harkut",slug:"dinesh-g.-harkut",fullName:"Dinesh G. Harkut"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9886",title:"Fractal Analysis",subtitle:"Selected Examples",isOpenForSubmission:!1,hash:"f0c3d700a69d15b52ff8a59fe7e99062",slug:"fractal-analysis-selected-examples",bookSignature:"Robert Koprowski",coverURL:"https://cdn.intechopen.com/books/images_new/9886.jpg",editedByType:"Edited by",editors:[{id:"50150",title:"Prof.",name:"Robert",surname:"Koprowski",slug:"robert-koprowski",fullName:"Robert Koprowski"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"7614",title:"Fourier Transforms",subtitle:"Century of Digitalization and Increasing Expectations",isOpenForSubmission:!1,hash:"ff3501657ae983a3b42fef1f7058ac91",slug:"fourier-transforms-century-of-digitalization-and-increasing-expectations",bookSignature:"Goran S. Nikoli? and Dragana Z. Markovi?-Nikoli?",coverURL:"https://cdn.intechopen.com/books/images_new/7614.jpg",editedByType:"Edited by",editors:[{id:"23261",title:"Prof.",name:"Goran",surname:"Nikolic",slug:"goran-nikolic",fullName:"Goran Nikolic"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10062",title:"Forecasting in Mathematics",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"9a3ad05fef0502040d2a238ad22487c0",slug:"forecasting-in-mathematics-recent-advances-new-perspectives-and-applications",bookSignature:"Abdo Abou Jaoude",coverURL:"https://cdn.intechopen.com/books/images_new/10062.jpg",editedByType:"Edited by",editors:[{id:"248271",title:"Dr.",name:"Abdo",surname:"Abou Jaoudé",slug:"abdo-abou-jaoude",fullName:"Abdo Abou Jaoudé"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10522",title:"Coding Theory",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"6357e1dd7d38adeb519ca7a10dc9e5a0",slug:"coding-theory-recent-advances-new-perspectives-and-applications",bookSignature:"Sudhakar Radhakrishnan and Sudev Naduvath",coverURL:"https://cdn.intechopen.com/books/images_new/10522.jpg",editedByType:"Edited by",editors:[{id:"26327",title:"Dr.",name:"Sudhakar",surname:"Radhakrishnan",slug:"sudhakar-radhakrishnan",fullName:"Sudhakar Radhakrishnan"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10402",title:"MATLAB Applications in Engineering",subtitle:null,isOpenForSubmission:!1,hash:"52f37e72f4007a3248a3658dbaeb1172",slug:"matlab-applications-in-engineering",bookSignature:"Constantin Voloşencu",coverURL:"https://cdn.intechopen.com/books/images_new/10402.jpg",editedByType:"Edited by",editors:[{id:"1063",title:"Prof.",name:"Constantin",surname:"Volosencu",slug:"constantin-volosencu",fullName:"Constantin Volosencu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9273",title:"Finite Element Methods and Their Applications",subtitle:null,isOpenForSubmission:!1,hash:"c47b5859ea7385f3c879918fd3b08a22",slug:"finite-element-methods-and-their-applications",bookSignature:"Mahboub Baccouch",coverURL:"https://cdn.intechopen.com/books/images_new/9273.jpg",editedByType:"Edited by",editors:[{id:"186635",title:"Prof.",name:"Mahboub",surname:"Baccouch",slug:"mahboub-baccouch",fullName:"Mahboub Baccouch"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9927",title:"Real Perspective of Fourier Transforms and Current Developments in Superconductivity",subtitle:null,isOpenForSubmission:!1,hash:"89f437eae592f8f3730b6c9ec8426e43",slug:"real-perspective-of-fourier-transforms-and-current-developments-in-superconductivity",bookSignature:"Juan Manuel Velazquez Arcos",coverURL:"https://cdn.intechopen.com/books/images_new/9927.jpg",editedByType:"Edited by",editors:[{id:"114776",title:"Dr.",name:"Juan Manuel",surname:"Velazquez Arcos",slug:"juan-manuel-velazquez-arcos",fullName:"Juan Manuel Velazquez Arcos"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9237",title:"Theory of Complexity",subtitle:"Definitions, Models, and Applications",isOpenForSubmission:!1,hash:"70d2fce88be4f0c3bf7daeea322926e8",slug:"theory-of-complexity-definitions-models-and-applications",bookSignature:"Ricardo López-Ruiz",coverURL:"https://cdn.intechopen.com/books/images_new/9237.jpg",editedByType:"Edited by",editors:[{id:"9849",title:"Prof.",name:"Ricardo",surname:"López-Ruiz",slug:"ricardo-lopez-ruiz",fullName:"Ricardo López-Ruiz"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],ofsBooks:[]},correction:{item:{id:"79356",slug:"corrigendum-to-review-of-liquid-filled-optical-fibre-based-temperature-sensing",title:"Corrigendum to Review of Liquid-Filled Optical Fibre-Based Temperature Sensing",doi:null,correctionPDFUrl:"https://cdn.intechopen.com/pdfs/65367.pdf",downloadPdfUrl:"/chapter/pdf-download/65367",previewPdfUrl:"/chapter/pdf-preview/65367",totalDownloads:null,totalCrossrefCites:null,bibtexUrl:"/chapter/bibtex/65367",risUrl:"/chapter/ris/65367",chapter:{id:"63471",slug:"review-of-liquid-filled-optical-fibre-based-temperature-sensing",signatures:"Fintan McGuinness, Gabriel Leen, Elfed Lewis, Gerard Dooly, Daniel Toal\nand Dinesh Babu Duraibabu",dateSubmitted:"May 22nd 2018",dateReviewed:"August 1st 2018",datePrePublished:"November 5th 2018",datePublished:"April 24th 2019",book:{id:"8271",title:"Applications of Optical Fibers for Sensing",subtitle:null,fullTitle:"Applications of Optical Fibers for Sensing",slug:"applications-of-optical-fibers-for-sensing",publishedDate:"April 24th 2019",bookSignature:"Christian Cuadrado-Laborde",coverURL:"https://cdn.intechopen.com/books/images_new/8271.jpg",licenceType:"CC BY 3.0",editedByType:"Edited by",editors:[{id:"220902",title:"Dr.",name:"Christian",middleName:null,surname:"Cuadrado-Laborde",slug:"christian-cuadrado-laborde",fullName:"Christian Cuadrado-Laborde"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}},authors:[{id:"27036",title:"Dr.",name:"Daniel",middleName:null,surname:"Toal",fullName:"Daniel Toal",slug:"daniel-toal",email:"daniel.toal@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"85846",title:"Prof.",name:"Elfed",middleName:null,surname:"Lewis",fullName:"Elfed Lewis",slug:"elfed-lewis",email:"Elfed.Lewis@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"259703",title:"Dr.",name:"Dinesh Babu",middleName:null,surname:"Duraibabu",fullName:"Dinesh Babu Duraibabu",slug:"dinesh-babu-duraibabu",email:"dineshbabu.duraibabu@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269578",title:"Dr.",name:"Gabriel",middleName:null,surname:"Leen",fullName:"Gabriel Leen",slug:"gabriel-leen",email:"Gabriel.Leen@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269579",title:"M.Sc.",name:"Fintan",middleName:null,surname:"McGuinness",fullName:"Fintan McGuinness",slug:"fintan-mcguinness",email:"Fintan.McGuinness@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269580",title:"Dr.",name:"Gerard",middleName:null,surname:"Dooly",fullName:"Gerard Dooly",slug:"gerard-dooly",email:"Gerard.Dooly@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}}]}},chapter:{id:"63471",slug:"review-of-liquid-filled-optical-fibre-based-temperature-sensing",signatures:"Fintan McGuinness, Gabriel Leen, Elfed Lewis, Gerard Dooly, Daniel Toal\nand Dinesh Babu Duraibabu",dateSubmitted:"May 22nd 2018",dateReviewed:"August 1st 2018",datePrePublished:"November 5th 2018",datePublished:"April 24th 2019",book:{id:"8271",title:"Applications of Optical Fibers for Sensing",subtitle:null,fullTitle:"Applications of Optical Fibers for Sensing",slug:"applications-of-optical-fibers-for-sensing",publishedDate:"April 24th 2019",bookSignature:"Christian Cuadrado-Laborde",coverURL:"https://cdn.intechopen.com/books/images_new/8271.jpg",licenceType:"CC BY 3.0",editedByType:"Edited by",editors:[{id:"220902",title:"Dr.",name:"Christian",middleName:null,surname:"Cuadrado-Laborde",slug:"christian-cuadrado-laborde",fullName:"Christian Cuadrado-Laborde"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}},authors:[{id:"27036",title:"Dr.",name:"Daniel",middleName:null,surname:"Toal",fullName:"Daniel Toal",slug:"daniel-toal",email:"daniel.toal@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"85846",title:"Prof.",name:"Elfed",middleName:null,surname:"Lewis",fullName:"Elfed Lewis",slug:"elfed-lewis",email:"Elfed.Lewis@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"259703",title:"Dr.",name:"Dinesh Babu",middleName:null,surname:"Duraibabu",fullName:"Dinesh Babu Duraibabu",slug:"dinesh-babu-duraibabu",email:"dineshbabu.duraibabu@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269578",title:"Dr.",name:"Gabriel",middleName:null,surname:"Leen",fullName:"Gabriel Leen",slug:"gabriel-leen",email:"Gabriel.Leen@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269579",title:"M.Sc.",name:"Fintan",middleName:null,surname:"McGuinness",fullName:"Fintan McGuinness",slug:"fintan-mcguinness",email:"Fintan.McGuinness@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}},{id:"269580",title:"Dr.",name:"Gerard",middleName:null,surname:"Dooly",fullName:"Gerard Dooly",slug:"gerard-dooly",email:"Gerard.Dooly@ul.ie",position:null,institution:{name:"University of Limerick",institutionURL:null,country:{name:"Ireland"}}}]},book:{id:"8271",title:"Applications of Optical Fibers for Sensing",subtitle:null,fullTitle:"Applications of Optical Fibers for Sensing",slug:"applications-of-optical-fibers-for-sensing",publishedDate:"April 24th 2019",bookSignature:"Christian Cuadrado-Laborde",coverURL:"https://cdn.intechopen.com/books/images_new/8271.jpg",licenceType:"CC BY 3.0",editedByType:"Edited by",editors:[{id:"220902",title:"Dr.",name:"Christian",middleName:null,surname:"Cuadrado-Laborde",slug:"christian-cuadrado-laborde",fullName:"Christian Cuadrado-Laborde"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}}},ofsBook:{item:{type:"book",id:"11512",leadTitle:null,title:"Photodetectors - Recent Advances, New Perspectives and Applications",subtitle:null,reviewType:"peer-reviewed",abstract:"
\r\n\tPhotodetectors are sensors of electromagnetic radiation. These devices may be classified by mechanism of detection, such as photoelectric or photochemical effects, or by performance metrics, such as spectral response. In addition, unique materials or materials systems exhibit physical and chemical properties that allow control or interaction with light converting the optical signal into an electrical signal for applications in photonics, electronics, and optoelectronics.
\r\n\r\n\tThe present book entitled "Photodetectors - Recent Advances, New Perspectives and Applications" aims to provide state-of-the-art knowledge on photodetector fundamentals and technology based on the latest research trends and exciting novel materials. Written by a team of world-renowned experts, with contributions from universities, research institutes, and industries, this book is timely and suitable for students and professionals engaged in photodetector technology research and development. Emphasis will range from synthesis methods, structural and performance characterization, new materials design, processing, and function, optoelectronic properties to theoretical analysis and simulations. Important experimental results are thoroughly addressed, embodying an advanced account of activities in this significant and exciting field in research and industry.
",isbn:"978-1-80356-090-8",printIsbn:"978-1-80356-089-2",pdfIsbn:"978-1-80356-091-5",doi:null,price:0,priceEur:0,priceUsd:0,slug:null,numberOfPages:0,isOpenForSubmission:!1,isSalesforceBook:!1,isNomenclature:!1,hash:"01d4be8e37c9bf12fd8dcb67c135b29b",bookSignature:"Prof. Kuan W. A. Chee",publishedDate:null,coverURL:"https://cdn.intechopen.com/books/images_new/11512.jpg",keywords:"Particle Physics, Photomultiplier, Phototubes, Solar Cells, Photovoltage, Infrared Detectors, Photodiodes, Photoresistors, Phototransistors, Bolometers, Photoreceptor Cells, Photochemical Synthesis",numberOfDownloads:null,numberOfWosCitations:0,numberOfCrossrefCitations:null,numberOfDimensionsCitations:null,numberOfTotalCitations:null,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"January 26th 2022",dateEndSecondStepPublish:"April 1st 2022",dateEndThirdStepPublish:"May 31st 2022",dateEndFourthStepPublish:"August 19th 2022",dateEndFifthStepPublish:"October 18th 2022",dateConfirmationOfParticipation:null,remainingDaysToSecondStep:"5 months",secondStepPassed:!0,areRegistrationsClosed:!0,currentStepOfPublishingProcess:4,editedByType:null,kuFlag:!1,biosketch:"A pioneering researcher and industry leader in semiconductor devices and materials, appointed head of the Optoelectronic Materials and Devices Laboratory, Senior Member IEEE, author of numerous research papers, and holder of multiple professional awards and prizes.",coeditorOneBiosketch:null,coeditorTwoBiosketch:null,coeditorThreeBiosketch:null,coeditorFourBiosketch:null,coeditorFiveBiosketch:null,editors:[{id:"206271",title:"Prof.",name:"Kuan",middleName:"W. A.",surname:"Chee",slug:"kuan-chee",fullName:"Kuan Chee",profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:"Kuan W. A. Chee is Outstanding Professor at the Shandong Academy of Sciences and head of the Optoelectronics Materials Laboratory. He is also a Chief Technology Officer in the mechatronics industry. He has a diverse background in leading high-tech industries and academia. He has published in several top journals, books, and conference proceedings and has given numerous talks at international conferences and seminars in science and engineering. His research covers electronic design, nano- and post-CMOS electronics, and photonic and optoelectronic devices. He has received prizes and awards such as from the Institution of Engineering and Technology, UK; the Institute of Physics, UK; the Institute of Electrical and Electronics Engineers, USA; the Royal Academy of Engineering, UK; the Materials Research Society; and the Cambridge Philosophical Society. Prof. Chee is supported by a science and engineering talent program in China.",institutionString:"University of Cambridge",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"2",totalChapterViews:"0",totalEditedBooks:"1",institution:{name:"University of Cambridge",institutionURL:null,country:{name:"United Kingdom"}}}],coeditorOne:null,coeditorTwo:null,coeditorThree:null,coeditorFour:null,coeditorFive:null,topics:[{id:"11",title:"Engineering",slug:"engineering"}],chapters:null,productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},personalPublishingAssistant:{id:"440212",firstName:"Elena",lastName:"Vracaric",middleName:null,title:"Ms.",imageUrl:"https://mts.intechopen.com/storage/users/440212/images/20007_n.jpg",email:"elena@intechopen.com",biography:"As an Author Service Manager, my responsibilities include monitoring and facilitating all publishing activities for authors and editors. From chapter submission and review to approval and revision, copyediting and design, until final publication, I work closely with authors and editors to ensure a simple and easy publishing process. I maintain constant and effective communication with authors, editors and reviewers, which allows for a level of personal support that enables contributors to fully commit and concentrate on the chapters they are writing, editing, or reviewing. I assist authors in the preparation of their full chapter submissions and track important deadlines and ensure they are met. I help to coordinate internal processes such as linguistic review, and monitor the technical aspects of the process. As an ASM I am also involved in the acquisition of editors. Whether that be identifying an exceptional author and proposing an editorship collaboration, or contacting researchers who would like the opportunity to work with IntechOpen, I establish and help manage author and editor acquisition and contact."}},relatedBooks:[{type:"book",id:"7310",title:"Advances in Photodetectors",subtitle:"Research and Applications",isOpenForSubmission:!1,hash:"06c22478e66a3ad195c384bc36c78f8e",slug:"advances-in-photodetectors-research-and-applications",bookSignature:"Kuan Chee",coverURL:"https://cdn.intechopen.com/books/images_new/7310.jpg",editedByType:"Edited by",editors:[{id:"206271",title:"Prof.",name:"Kuan",surname:"Chee",slug:"kuan-chee",fullName:"Kuan Chee"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10198",title:"Response Surface Methodology in Engineering Science",subtitle:null,isOpenForSubmission:!1,hash:"1942bec30d40572f519327ca7a6d7aae",slug:"response-surface-methodology-in-engineering-science",bookSignature:"Palanikumar Kayaroganam",coverURL:"https://cdn.intechopen.com/books/images_new/10198.jpg",editedByType:"Edited by",editors:[{id:"321730",title:"Prof.",name:"Palanikumar",surname:"Kayaroganam",slug:"palanikumar-kayaroganam",fullName:"Palanikumar Kayaroganam"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"1591",title:"Infrared Spectroscopy",subtitle:"Materials Science, Engineering and Technology",isOpenForSubmission:!1,hash:"99b4b7b71a8caeb693ed762b40b017f4",slug:"infrared-spectroscopy-materials-science-engineering-and-technology",bookSignature:"Theophile Theophanides",coverURL:"https://cdn.intechopen.com/books/images_new/1591.jpg",editedByType:"Edited by",editors:[{id:"37194",title:"Dr.",name:"Theophile",surname:"Theophanides",slug:"theophile-theophanides",fullName:"Theophile Theophanides"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3161",title:"Frontiers in Guided Wave Optics and Optoelectronics",subtitle:null,isOpenForSubmission:!1,hash:"deb44e9c99f82bbce1083abea743146c",slug:"frontiers-in-guided-wave-optics-and-optoelectronics",bookSignature:"Bishnu Pal",coverURL:"https://cdn.intechopen.com/books/images_new/3161.jpg",editedByType:"Edited by",editors:[{id:"4782",title:"Prof.",name:"Bishnu",surname:"Pal",slug:"bishnu-pal",fullName:"Bishnu Pal"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"371",title:"Abiotic Stress in Plants",subtitle:"Mechanisms and Adaptations",isOpenForSubmission:!1,hash:"588466f487e307619849d72389178a74",slug:"abiotic-stress-in-plants-mechanisms-and-adaptations",bookSignature:"Arun Shanker and B. Venkateswarlu",coverURL:"https://cdn.intechopen.com/books/images_new/371.jpg",editedByType:"Edited by",editors:[{id:"58592",title:"Dr.",name:"Arun",surname:"Shanker",slug:"arun-shanker",fullName:"Arun Shanker"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3092",title:"Anopheles mosquitoes",subtitle:"New insights into malaria vectors",isOpenForSubmission:!1,hash:"c9e622485316d5e296288bf24d2b0d64",slug:"anopheles-mosquitoes-new-insights-into-malaria-vectors",bookSignature:"Sylvie Manguin",coverURL:"https://cdn.intechopen.com/books/images_new/3092.jpg",editedByType:"Edited by",editors:[{id:"50017",title:"Prof.",name:"Sylvie",surname:"Manguin",slug:"sylvie-manguin",fullName:"Sylvie Manguin"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"72",title:"Ionic Liquids",subtitle:"Theory, Properties, New Approaches",isOpenForSubmission:!1,hash:"d94ffa3cfa10505e3b1d676d46fcd3f5",slug:"ionic-liquids-theory-properties-new-approaches",bookSignature:"Alexander Kokorin",coverURL:"https://cdn.intechopen.com/books/images_new/72.jpg",editedByType:"Edited by",editors:[{id:"19816",title:"Prof.",name:"Alexander",surname:"Kokorin",slug:"alexander-kokorin",fullName:"Alexander Kokorin"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"2270",title:"Fourier Transform",subtitle:"Materials Analysis",isOpenForSubmission:!1,hash:"5e094b066da527193e878e160b4772af",slug:"fourier-transform-materials-analysis",bookSignature:"Salih Mohammed Salih",coverURL:"https://cdn.intechopen.com/books/images_new/2270.jpg",editedByType:"Edited by",editors:[{id:"111691",title:"Dr.Ing.",name:"Salih",surname:"Salih",slug:"salih-salih",fullName:"Salih Salih"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"117",title:"Artificial Neural Networks",subtitle:"Methodological Advances and Biomedical Applications",isOpenForSubmission:!1,hash:null,slug:"artificial-neural-networks-methodological-advances-and-biomedical-applications",bookSignature:"Kenji Suzuki",coverURL:"https://cdn.intechopen.com/books/images_new/117.jpg",editedByType:"Edited by",editors:[{id:"3095",title:"Prof.",name:"Kenji",surname:"Suzuki",slug:"kenji-suzuki",fullName:"Kenji Suzuki"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3828",title:"Application of Nanotechnology in Drug Delivery",subtitle:null,isOpenForSubmission:!1,hash:"51a27e7adbfafcfedb6e9683f209cba4",slug:"application-of-nanotechnology-in-drug-delivery",bookSignature:"Ali Demir Sezer",coverURL:"https://cdn.intechopen.com/books/images_new/3828.jpg",editedByType:"Edited by",editors:[{id:"62389",title:"PhD.",name:"Ali Demir",surname:"Sezer",slug:"ali-demir-sezer",fullName:"Ali Demir Sezer"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},chapter:{item:{type:"chapter",id:"64048",title:"Functionally Graded Concrete Structure",doi:"10.5772/intechopen.81435",slug:"functionally-graded-concrete-structure",body:'\nConcrete thick-walled lining is an important supporting structure widely used in many areas like mining, hydraulic power station, tunnel, underground storage project, and so on. Under the action of the outer loading, usually the in situ stresses, stress distributions are nonuniform, especially in the radial direction. For example, as a thick-walled hollow cylinder is subjected to hydraulic pressure, tangential stress concentration will occur along the inner boundary (see Figure 1). Nowadays, some underground engineering disciplines, like mining, are being excavated in depth more than 1000 m and the in situ stresses will be very large, maybe more than 27 MPa [1]. Under such a stress, if the concrete strength is not high enough, failure will probably initiate from the inner lining boundary. In order to improve the bearing capacity and ensure the lining can work safely, two means are usually used: (i) increase the thickness of lining and (ii) improve the material strength. For the first mean, using thicker lining, the stress concentration can be eased, but in a limit range. Moreover, it is not economical. Statistics show that the excavation may cost 40–60% of the total cost of a shaft construction. As deeper than 1000 m, a 10 mm decrease in lining thickness, the total cost will decrease by around 1% (reinforced concrete structure) and 0.25% (concrete structure). For the other mean, using high-strength concrete, the elastic ultimate bearing capacity will increase in a certain extent. But high strength concrete usually needs high strength cement and kinds of admixtures, and high-level construction technology, which will also lead to higher cost. Besides, as we all know, concrete materials with higher strength have more significant brittleness and very low residual strength. Thus, sudden failure will be more likely to occur in lining. Both theoretical and practical results illustrate that total cost will increase significantly and usually the failure cannot be avoided either by increasing thickness or by improving higher strength.
\nTraditional single-layered lining under hydrostatic in situ stress.
The usually used two means are neither economic nor practical. Herein, in order to conquer these problems and increase the ultimate bearing capacity of lining, an alternative way we proposed in this work is to introduce the idea, functionally graded materials (FGMs). The concept of FGM was firstly proposed in 1984 by Japanese materials scientists as a mean of preparing thermal barrier materials. Continuous changes in the composition, microstructure, porosity, etc. of material result in gradients in such properties as mechanical strength and thermal conductivity [2]. Compositional micro/macrostructure gradient can not only dismiss undesirable effects such as stress concentration [3] but also generate unique positive function [4]. Then, its applications have been expanded to also the components of chemical plants, solar energy generators, heat exchangers, nuclear reactors, and high efficiency combustion systems [5]. Some people also carried out some works on the functionally graded performances of construction materials [6, 7]. Shen et al. [8] developed a functionally graded material system with a spatially tailored fiber distribution to produce a four-layered, functionally graded fiber-reinforced cement composite. Dias et al. [9] discussed the use of statistical mixture designs to choose formulations and presented ideas for the production of functionally graded fiber cement components. In this work, in order to improve the stress distributions, inverse analysis is carried out firstly. We let the Young’s modulus be a function of radius r, that is, E(r), not just a constant E as usual, and the Poisson’s ratio μ be a constant. Then, we induce the expressions E(r) based on the preassumed stress distributions. In this way, we can get an ideal model, the functionally graded lining. But this ideal model is not practical for concrete material used in lining. Thus, we choose the multilayered lining as an alternative. We analyze the simplest one, a double-layered lining with hydrostatic pressure acting on the outer boundary, to assess the support performance of functionally graded lining. Finally, model tests are carried out to check the theoretical results.
\nThere have been many analytical results on FG thick-walled hollow cylinder subjected to temperature loads or stresses. In these works, material parameters are preassumed to be a certain function about radius. Usually, the Poisson’s ratio is set as a constant but the Young’s modulus or shear modulus is defined as different types of functions about radius like linear variation [10, 11], power law variation [12, 13, 14, 15, 16, 17, 18, 19, 20, 21], exponential variation [18, 22, 23], and other forms [24, 25]. All these abovementioned works mainly calculated the stress and displacement distributions in a FG thick-walled hollow cylinder with given Young’s modulus E(r) or shear modulus G(r). Obviously, the stresses and displacement distributions are dependent on the given E(r) or G(r). This is a forward problem. Instead, in order to obtain a stress distribution that we want it to be, we preassume the stress distribution and let the Young’s modulus E(r) be undetermined. The undetermined E(r) can be back-induced according to the preassumed stress distribution and loadings. This process is usually called inverse analysis [26]. The problem we discussed in this section is such a process. The FG lining is subjected to a hydrostatic pressure
If we want to give full play to the support material, the ideal state is that the whole lining enters into plastic yielding at the same time. We confine attention to the plane strain problem. Compressive stress is defined as positive in this chapter. Because of the axial symmetry of the problem, the tangential and radial stresses, σθ and σr, in the rock mass will, respectively, be the maximum and minimum principal stresses, that is, σ1 = σθ and σ3 = σr. And we assume the failure of the lining concrete is ruled by the Tresca criterion, σ1 − σ3 = c, where c is a constant reflecting the material strength. In this situation, the ideal stress state can be preassumed as σθ − σr = c. It should be noted that the values of Young’s modulus E(r) in different radius r may be different from each other, but for one point, it has the same value in any directions. It means that materials of the FG linings discussed here are isotropic. Besides, there is an implicit requirement behind “the whole lining enters into plastic yielding simultaneously”: the FG lining should have a constant strength, although the Young’s modulus may be different in the radial direction.
\nThe Young’s modulus E(r) only depends on the radius r. So, the problem shown in Figure 1 is a plane strain axisymmetric problem. For small strain problem, the strain-displacement relations, constitutive equations, and equilibrium equations can be given, respectively, as
\nwhere εθ and εr are the tangential and radial strains, respectively; u is the radial displacement; and μ is the Poisson’s ratio.
\nSubstituting σθ − σr = c into Eq. (5) and solving the partial differential equation gives the expression of the radial stress,
\nwhere A and c are constants to be determined, the values of which can be determined by the stress boundary conditions on the inner boundary r = Rin, σr = 0, and outer boundary r = Rout, σr = p. We have \n
Combining Eqs. (1)–(5), (7), and (8), the following ordinary differential equation can be obtained,
\nwhere \n
where
which agrees with the result by Nie and Batra [15, 27].
\nDimensionless Young’s modulus with respect to radius for different Poisson’s ratios.
It can be seen from Figure 2 and Eqs. (10) and (11) that in order to achieve the preassumed stress distribution σθ − σr = c, the Young’s modulus
For the ideal FG lining, the stresses in any point can satisfy the equation
According to the inverse analysis in Section 2, we know that the ideal FG lining material should mainly satisfy two requirements: (i) constant strength and (ii) continuously increasing Young’s modulus in radial direction (see Figure 3(B)). Currently, most of the linings are constructed using concrete-based materials. But in view of the state of the art of concrete, it is scarcely possible to satisfy the second point, that is, continuously changing Young’s modulus. So, in order to apply the FG idea in practical engineering, we use multilayered lining as an alternative (see Figure 3(C)). In this way, it is required that every layer of the multilayered lining should have almost equal strength and that each layer should have larger Young’s modulus than its adjacent inner layer, that is, Ei > Ei−1. We herein, as an example, conduct the elastoplastic analysis of the simplest one, a double-layered lining subjected to hydrostatic in situ stress on the outer boundary (see Figure 4), calculating its elastic and plastic ultimate bearing capacities and comparing them with the corresponding parameters of the traditional single-layered lining and the ideal FG lining.
\n(A) Traditional single-layered lining; (B) ideal FG lining; and (C) multilayered lining.
Double-layered thick-walled hollow lining under hydrostatic in situ stress.
Similar to Section 2, the deformation pattern is restricted by the plane strain condition as well. Material behaviors of both layers are modeled by a finite strain elastoplastic flow theory based on the Tresca yield function. Perfectly elastoplastic behavior is assumed for the support material.
\nThe subscript i = 1 and 2 denote the inner and outer layers, respectively (similarly hereinafter). The stresses in both layers satisfy the equilibrium Eq. (5); as we use in this section, we just need to add the subscript i for each layer, the same with the strain-displacement relations, Eqs. (1) and (2).
\nEi, μi, and σci (i = 1 and 2) denote Young’s modulus, Poisson’s ratio, and uniaxial compressive strength, respectively (see Figure 4). The inner and outer radii of lining are Rin and Rout, respectively. Although the two layers are not bond with each other, the problem we discuss is axisymmetric, so the outer boundary of the inner layer and the inner boundary of the outer layer should be always together. The radius of the interboundary is R1. The calculated mechanical model is shown in Figure 4.
\nAs we know, for a thick-walled hollow cylinder under outer and/or inner hydrostatic pressures, the most significant stress concentration will occur along the inner boundary, so the plastic yielding will initiate formation of the inner boundary. It is the same for each layer of a multilayered lining. The initiation and extension path of plastic yielding in a multilayered lining depend on the values of the Young’s modulus Ei, the strength σci, and the radius Ri of each layer. For the double-layered lining, according to the initiation and extension mode of plastic yielding, there will exist four different cases of elastic and plastic zones. Both layers stay in elastic state as the loading is small (see Figure 5(A)). As the loading is relatively large, plastic yielding may occur only in the inner layer (see Figure 5(B)) or only in the outer layer (see Figure 5(C)) or in both layers (see Figure 5(D)). rp, and rpi (i = 1 and 2) in Figure 5 denote the radii of plastic zones. As mentioned above, the main aim of the elastoplastic analysis in this section is to calculate the elastic and plastic ultimate bearing capacity. So, we just give the analyzing processes, in detail, of Case A assessing the elastic ultimate bearing capacity and Case D assessing the plastic ultimate bearing capacity.
\nFour cases of double-layered lining under hydrostatic in situ stresses: (A) both layers in elastic state; (B) plastic yielding occurs only in inner layer, Rin < rp ≤ R1; (C) plastic yielding occurs only in outer layer, R1 < rp ≤ Rout; and (D) plastic yielding occurs in both layers, Rin < rp1 ≤ R1, R1 < rp2 ≤ Rout.
For an axisymmetric plane strain problem, the radial and tangential stresses, σri and σθi, and the radial displacement, uri, can, respectively, be given by the following expressions [28],
\nwhere Ai and Bi (i = 1 and 2) are constants to be determined. The superscript e represents elasticity.
\nSubstituting Eq. (13) into Eq. (5) gives the stresses in the plastic zone,
\nwhere Ci (i = 1 and 2) are constants to be determined.
\nIn the plastic zone, total radial and tangential strains, εr and εθ, can be decomposed into elastic and plastic parts as
\nSimilarly, the superscript e and p represent elastic and plastic, respectively.
\nIn order to determine the displacement field in the plastic region, a plastic flow rule is needed. By assuming that the elastic strains are relatively small in comparison to the plastic strains and that an associated flow rule is valid, the plastic parts of radial and tangential strains may be related for the plane strain condition
\nFrom Eqs. (1), (2), (19)–(21) the differential equation for the radial displacement can be expressed as
\nwhere \n
By using the generalized Hooke law with consideration of the plane strain assumption, εθi = 0, the elastic strains can be given as
\nIt should be noted that σri and σθi in Eqs. (23) and (24) are stresses in the plastic zone, so, they can be expressed by Eqs. (17) and (18), respectively. So, the function fi(r) is
\nwhere \n
where Gi (i = 1 and 2) are constants to be determined.
\nThe elastic ultimate bearing capacity is the load p, as plastic yielding initiates along the inner boundaries of either layer. It can be calculated by elastic analysis of Case A (see Figure 5(A)). The boundary and continuity conditions include at the inner boundary of the inner layer \n
We have four variables Ai and Bi (i = 1 and 2) and four equations Eqs. (27)–(30). When the plastic yielding initiates from the inner boundary of the inner layer, the stresses at \n
Similarly, if the plastic yielding initiates from the inner boundary of the outer layer, we have
\nFrom Eqs. (31) and (32), we can obtain two critical loads \n
where \n
where \n
i. When \n
ii. When \n
iii. When \n
As the whole lining turns into plastic yielding state, the corresponding load is the ultimate bearing capacity, which can be calculated by analyzing Case D (see Figure 5(D)). In the same way as the elastic analysis, the elastoplastic analysis can be carried out by using the boundary and continuity conditions, which include at the inner boundary of the inner layer \n
We have 12 variables Ai, Bi, Ci, Di, Fi, and Gi (i = 1 and 2), but just eight equations (Eqs. 38–45), while the four variables Di and Fi (i = 1 and 2) can be determined using the material parameters and values of other variables. So, all variables can be calculated and the stresses and displacements in both layers can be obtained. Besides, in order to determine the relationship between the load, p, and the radii of plastic zones, rp1 and rp2, we need two more equations. According to the extension path of plastic yielding, we know that the stresses along the both inner boundaries of two elastic zones should satisfy the Tresca criterion as well, which gives
\nIf we take the Poisson’s ratio μ1 = μ2 = 0.5, the relationship between the load and the two radii of the plastic zones can be obtained as
\nBy letting \n
It can be seen from Eq. (49) that for the given material parameters, the ratio between the two radii of the outer and inner plastic zones keeps equal the coefficient \n
i. When \n
ii. When \n
iii. When \n
In order to assess the support performance of a FG lining, we will compare the elastic ultimate bearing capacity of the FG lining with that of the traditional single-layered lining with constant Young’s modulus and Poisson’s ratio. The tangential and radial stresses σθ and σr are also the maximum and minimum principle stresses, respectively. They can be given by the classic Lame solution, which can be referred in most classic elastic mechanics books [29]. As we mentioned earlier, the plastic zone for this case will initiate from the inner boundary of the lining r = Rin. So, as the stresses along the inner boundary satisfy the Tresca criterion, that is, σθ
As the outer boundary turns into plastic state, the loading is the plastic ultimate bearing capacity,
\nIn order to investigate the support characteristics of different kind of linings, numerical examples are illustrated in this section. Three different types of linings, that is, traditional single-layered lining (TSL), ideal FG lining (IFGL), and double-layered FG lining (DFGL), are considered. The parameters are listed in Table 1. In order to facilitate comparative analysis, the values of dimensions, Rin, R1, and Rout, the Young’s modulus, E, and the UCS, σc, are taken based on the model test shown in the following section.
\n\n | TSL | \nIFGL | \nDFGL | \n
---|---|---|---|
Radii, R (m) | \nRin = 0.3, Rout = 0.5 | \nRin = 0.3, Rout = 0.5 | \nRin = 0.3, R1 = 0.4, Rout = 0.5 | \n
Young’s modulus, E (GPa) | \n41 | \nEq. (11), E(Rin) = 20 | \nE1 = 25, E2 = 41 | \n
Poisson’s ratio, μ | \n0.5 | \n0.5 | \n0.5 | \n
UCS, σc (MPa) | \n50 | \n50 | \nσc1 = σc2 = 50 | \n
Parameters of numerical examples.
Figure 6 shows the support characteristic curves (SCCs) of the three different types of linings and the ground response curves (GRCs) of a very good quality quartzite under different in situ stresses given by Hoek and Brown [1], assuming the convergence that has finished as the lining is installed, ui = 0.3 mm. The displacements of the several given coordinate values in Figure 6 are the radial displacement of the outer boundary of lining under support pressure, smaller by 0.3 mm than the tunnel deformation on the excavation boundary. It can be easily seen from Figure 6 that, as the in situ stress p0 = 27 MPa, all three lining structures can work in elastic state. As p0 = 54 MPa, the IFDL and DFGL structures can still work in elastic state, with approximate 8.4 and 2 MPa elastic bearing capacity unused, respectively. But the TSL cannot work in elastic state in such an in situ stress. Under higher in situ stress, p0 = 81 MPa, all three lining structures will turn into plastic state.
\nSupport characteristic curves of three different types of linings and ground response curves under different in situ stresses.
Figure 7 shows the support pressure versus radii of plastic zones. Presenting the relationships in this way helps to visualize the extension path of plastic yielding. The points labeled by same letter in Figures 6 and 7 indicate the same moment as the support pressure increases. For the TSL, plastic yielding extends radially outward, initiating from its inner boundary (see point A in Figures 6 and 7, p = 16.00 MPa) and finishing at the outer boundary (point B, p = 25.54 MPa). For the IFGL, as we mentioned above, the elastic and the plastic ultimate bearing capacities are the same (point C, p = 25.54 MPa). But for the DFGL, the extension mode of plastic yielding becomes more complex, depending on the Young’s modulus and Poisson’s ratio of the materials of both layers. For the incompressible material, that is, μ = 0.5, the extension path can be determined by Eqs. (35)–(37), (50), and (51). Taking the DFGL given in Table 1 as example, the extension of plastic yielding can be divided into four steps: (i) plastic yielding initiates from the inner boundary of the inner layer (point D, p = 19.24 MPa) and extends radially (see Figure 5(B)); (ii) along the inner boundary of the outer layer, plastic yielding begins to occur (point E, p = 20.77 MPa); in this stage, plastic and elastic zones exist alternately in both layers; (iii) the outer layer firstly turns into plastic state totally (point F, p = 25.51 MPa); and (iv) the inner layer turns into plastic state totally (point G, p = 25.54 MPa).
\nExtension path of plastic yielding.
As can be seen from the SCCs in Figures 6 and 7, the elastic ultimate bearing capacity of the DFGL is 19.24 MPa, an increase of 20.3% over that of the TSL, 16.00 MPa, and the IFGL can reach to 25.54 MPa, an increase of 59.6%, and, it should also be noted that the increase in the elastic ultimate bearing capacity is proportional to the relative thickness of lining, t/Rin. In the numerical examples, t/Rin = 0.667, which may be higher than most used in real engineering. We will discuss later the effect of t/Rin on the elastic ultimate bearing capacity. Unlike the elastic ultimate bearing capacity, the plastic ultimate bearing capacities of all three linings are the same, 25.54 MPa, which is due to the same UCS.
\nOne more thing that needs to be noted is that the behavior model for the lining concrete we used is perfectly elastoplastic (see Figure 8(a)), but, as known to all, the concrete material should be strain-softening (see Figure 8(b)), which means that the strength will decrease after the concrete turns into plastic yielding state. For the strain-softening TSL, the strength decrease will affect its bearing capacity significantly, may be much smaller than that of the perfectly elastoplastic TSL, because the plastic yielding initiates from the inner boundary and extends outward. But for the strain-softening DFGL, the postfailure strength of the plastic zone in the outer layer can be improved in some degree (see Figure 8(c)) because of the support action of the elastic zone in the inner layer (see Figures 5(D) and 7). In this way, the support performance of lining can be improved.
\nMaterial behavior models.
If we want to make the most of a multilayered lining material, the optimum case should be that plastic yielding initiates and finishes in each layer simultaneously, while, for a uniform thick multilayered FG lining like the DFGL in Table 1, the optimum case cannot happen. In order to achieve the optimum case for a double-layered lining constructed with incompressible material, according to the above elastoplastic analysis, we have
\nIt can be seen from Eq. (55) that for a circular tunnel supported by a double-layered FG lining, if it requires a net space with radius Rin, the thickness δ can be chosen as δ = (λ2 − 1)Rin and the radius of the interboundary R1 should be λRin. Herein, the effect of the convergence on the required net space is ignored.
\nAs we can see, from the numerical examples, the elastic ultimate bearing capacity can be improved significantly by using the FG linings, either IFGL or DFGL. And, the improvement degree, as mentioned above, is related to the relative thickness as well. So, it is necessary to discuss the effect of lining thickness on the elastic ultimate bearing capacity. The relationships between the dimensionless elastic ultimate bearing capacity and the relative thickness, t/Rin, are to be given as follows. For the TSL, the relationship can be given according to Eq. (53),
\nFor the IFGL, it can be deduced according to Eq. (12),
\nFor the ODFGL, it can be deduced according to Eqs. (36) and (55),
\nFor an uniform thick DFGL, that is, R1 = (Rin + Rout)/2, its elastic ultimate bearing capacity is also related to the values of the Young’s modulus. If \n
if \n
It should be noted that Eqs. (56)–(60) are obtained on the assumption that the UCS of each lining material is constant. Figure 9 illustrates the curves between the dimensionless elastic ultimate bearing capacity with respect to the relative thickness. The curve of the DFGL in Figure 9 is plotted based on the values of Young’s modulus list in Table 1, E1 = 25 GPa and E2 = 41 GPa. The increases on elastic ultimate bearing capacity of different types of linings with respect to relative lining thickness are listed in Table 2. As can be seen from Figure 9 and Table 2 that, if we use the IFGL and ODFGL, the increases will become more significant, especially the IFGL. But the opposite situation happens for the DFGL. The elastic ultimate bearing capacity is improved more significantly as the lining is thinner.
\nDimensionless elastic ultimate bearing capacity with respect to relative thickness.
t/Rin | \n\n\n | \n\n\n | \nIncrement (%) | \n\n\n | \nIncrement (%) | \n\n\n | \nIncrement (%) | \n
---|---|---|---|---|---|---|---|
0.05 | \n0.046 | \n0.049 | \n4.96 | \n0.048 | \n2.44 | \n0.061 | \n30.83 | \n
0.10 | \n0.087 | \n0.095 | \n9.83 | \n0.091 | \n4.76 | \n0.113 | \n29.72 | \n
0.20 | \n0.153 | \n0.182 | \n19.34 | \n0.167 | \n9.09 | \n0.195 | \n27.65 | \n
0.30 | \n0.204 | \n0.262 | \n28.52 | \n0.231 | \n13.04 | \n0.257 | \n25.77 | \n
0.40 | \n0.245 | \n0.336 | \n37.39 | \n0.286 | \n16.67 | \n0.304 | \n24.07 | \n
0.50 | \n0.278 | \n0.405 | \n45.97 | \n0.333 | \n20.00 | \n0.340 | \n22.53 | \n
0.60 | \n0.305 | \n0.470 | \n54.26 | \n0.375 | \n23.08 | \n0.369 | \n21.12 | \n
0.70 | \n0.327 | \n0.531 | \n62.28 | \n0.412 | \n25.93 | \n0.392 | \n19.83 | \n
0.80 | \n0.346 | \n0.588 | \n70.04 | \n0.444 | \n28.57 | \n0.410 | \n18.66 | \n
0.90 | \n0.361 | \n0.642 | \n77.55 | \n0.474 | \n31.03 | \n0.425 | \n17.58 | \n
1.00 | \n0.375 | \n0.693 | \n84.84 | \n0.500 | \n33.33 | \n0.437 | \n16.59 | \n
Increases on elastic ultimate bearing capacity.
Note: All the increases are calculated comparing with the TSL.
In order to compare the stress distributions in different types of linings, we take the value of support pressure p = 15 and 23 MPa as examples and the other parameters are the same as in Table 1. Figures 10 and 11 illustrate the radial and tangential stress distributions in the radial direction. The main difference between the three linings is the tangential stress σθ and the radial stress distributions are almost the same. As p = 15 MPa (see Figure 10), all the three linings are in elastic state. As we know, the tangential stress concentration is the main reason of plastic yielding. Usually, the largest tangential stress concentration occurs along the inner boundary of the lining and the stress there is two dimensional, so the inner boundary of the lining is the most plastic-yielding-prone zone. In this zone, as can be seen from Figure 10 that the tangential stress concentration of the TSL σθ/p = 3.125, the largest tangential stress concentration of the TSL, while the tangential stress concentration factor σθ/p along the inner boundary of the DFGL and that of the IFGL are 2.599 and 1.958, decreases of 16.8 and 37.3% compared to the TSL, respectively. And the largest tangential stress concentration of the DFGL and that of the IFGL, σθ/p = 2.966 and 2.958, occur along the inner boundary of the outer layer and the outer boundary of the lining, respectively, where both are in three dimensional stress. So, the stress distributions in both the DFGL and IFGL are more reasonable than that in the TSL. As p = 23 MPa (see Figure 11), the given support pressure is larger than the elastic ultimate bearing capacities of the TSL and DFGL, so parts of the two linings turn into plastic state. But the IFGL is still in elastic state. The thickness of plastic zone in the TSL is about 0.092 m, 46% of the total thickness of the lining, while, for the DFGL, the thickness of plastic zone in both layers is about 0.062 m total, 31% of the total thickness of the lining. So, according to the stress distributions and the plastic area, we can come to that both the DFGL and IFGL are superior to the TSL.
\nStress distributions in the radial direction (p = 15 MPa).
Stress distributions in the radial direction (p = 23 MPa).
In order to testify the superiorities of the FG linings over the TSL, we carried out a model test to compare the support characteristics. Due to the difficulties of constructing a multilayered concrete lining, the simplest multilayered lining, a double-layered lining structure, is chosen. As mentioned earlier, in order to obtain a FG concrete lining, we need a FG concrete mixture (FGC), producing concrete with same strength but different Young’s modulus.
\nThe main factors influencing the strength and/or the Young’s modulus contain the aggregate properties (like the quality [30], the type and maximum aggregate size [31], the grade [32],the Young’s modulus [33], etc.), the water/binder ratio [34], the chemical admixtures (like the air-void mixture [35], shrinkage-reducing mixture [36], retarders and accelerators [37], superplasticizer [38], etc). Besides, the steel or polyfibers [39], usually used in practice, also have influence on the concrete strength and Young’s modulus. In order to obtain the FGC, we conducted orthogonal test and a large number of single factor tests, investigating the influences of almost all of the abovementioned factors on the Young’s modulus and compressive strength of concrete. Experimental data were analyzed statistically. Test results of multivariate analysis of variance (MANOVA) with 95% confidence level (α = 0.05) show that the quantity and modulus of coarse aggregate are two significant factors influencing the Young’s modulus, but the compressive strength is slightly influenced by the two factors. The poly fiber also has such an influence just not that significant. So, the quantity and modulus of coarse aggregate the poly fiber are chosen as the major factors to prepare the FGC.
\nThe mixture test and the model tests later in this chapter are based on Portland Cement 42.5R as the cementing material. The physical parameters of cement are listed in Table 3. The coarse aggregate is crushed limestone with the size between 5 and 20 mm. Figure 12 shows the size distribution of the coarse aggregate, including the corresponding ASTM C 33 limits. It can be seen that the coarse aggregate is within the ASTM C 33 coarse aggregate grading band [40]. The fine aggregate was river sand with a fineness modulus of 3.2 (see Figure 13). Polypropylene fibers, GRPF-12 mm (Figure 14), are added in concrete mixes at different volumetric fractions. Specifications are listed in Table 4. The superplasticizer (JM-PCA(V)) is a complex additive based on carboxylic grafted polymeric, produced by Nanjing Subote New Materials Co., Ltd., China.
\nType of cement | \nP.O 42.5R | \n
Specific surface area (m2/kg) | \n330 | \n
Initial setting time (min) | \n≥60 | \n
Final setting time (h) | \n6 | \n
Compressive strength (3d) (MPa) | \n≥24.0 | \n
Compressive strength (28d) (MPa) | \n≥48.0 | \n
Flexural strength (3d) (MPa) | \n≥4.5 | \n
Flexural strength (28d) (MPa) | \n≥7.0 | \n
Parameters of cement.
Grading of coarse aggregates.
Size distribution for fine aggregate with fineness modulus = 3.2.
Polypropylene fiber.
Material composition | \n100% polypropylene | \n
---|---|
Density (g/cm3) | \n0.91 | \n
Equivalent diameter (μm) | \n27.69 | \n
Fracture strength (MPa) | \n641 | \n
Initial modulus (GPa) | \n8.5 | \n
Elongation at break (%) | \n30 | \n
Length (mm) | \n12 | \n
Melting point (°C) | \n>160 | \n
Material shape | \nMonofilament | \n
Chemical properties | \nAcid-proof, alkali-proof, nontoxic | \n
Properties of polypropylene fiber.
Based on the results of tests, six concrete mixtures and the parameters are given in Table 5.
\nNo. | \nWater (kg/m3) | \nCement (kg/m3) | \nSand (kg/m3) | \nAggregate (kg/m3) | \nWater reducer (kg/m3) | \nPolypropylene fiber (kg/m3) | \nProperties | \n|||
---|---|---|---|---|---|---|---|---|---|---|
Compressive strength, σc (Mpa) | \nYoung’s modulus, E (Gpa) | \nPoisson’s ratio | \nSlum (cm) | \n|||||||
1 | \n156 | \n390 | \n585 | \n1325 | \n8.775 | \n8 | \n54.6 | \n40.2 | \n0.228 | \n8.5 | \n
2 | \n187 | \n467 | \n702 | \n1040 | \n10.508 | \n— | \n51.3 | \n41.0 | \n0.235 | \n17.0 | \n
3 | \n218 | \n546 | \n819 | \n795 | \n12.285 | \n4 | \n45.9 | \n37.7 | \n0.235 | \n12.0 | \n
4 | \n255 | \n686 | \n1029 | \n— | \n17.493 | \n4 | \n50.2 | \n26.9 | \n0.234 | \n6.0 | \n
5 | \n255 | \n686 | \n1029 | \n— | \n17.493 | \n8 | \n49.1 | \n24.8 | \n0.233 | \n6.0 | \n
6 | \n255 | \n686 | \n1029 | \n— | \n17.493 | \n12 | \n46.0 | \n24.1 | \n0.23 | \n4.0 | \n
Proportions and mechanical properties of FGCs (kg/m3).
As mentioned earlier, in the model tests, we conduct two lining structures, that is, the traditional single-layered lining (Figure 15(I)) and the double-layered FG lining (Figure 15(II)), assessing the support characteristics. Because the two layers of the DFGL need to be poured separately, the interface between them is unavoidable. In order to reduce the interface effect to the results, the TSL is also poured twice like the DFGL. The pouring process is to be given later.
\nTwo types of lining structures: (I) TSL and (II) DFGL.
Considering the working space of the test platform, the dimensions are chosen as Rin = 300 mm, R1 = 400 mm, and Rout = 500 mm. It should be noted that the problem we discussed in our theoretical models is a plain strain problem; so in order to get linings that can simulate the state of a plain strain, the linings should be long enough, comparing with the dimensions of the cross section. The length in our test is 2300 mm (Figure 16).
\nPouring process of DFGL (mm).
Combining the theoretical results and the functionally graded concrete (FGC), two types of concrete, M1 and M2, are poured using the two mixtures, No. 2 and 5 in Table 5, respectively. The mechanical parameters of the lining concretes are listed in Table 6. The parameters are obtained by testing the specimens poured using the real lining concrete mixtures, not the results in Table 5. The specimens and the linings are all cured in water (20 ± 2°C) for 28 days.
\nLining types | \n\n | UCS, σc (MPa) | \nYoung’s modulus, E (GPa) | \nPoisson’s ratio, μ | \nSlump (cm) | \n
---|---|---|---|---|---|
Single-layered lining | \nInner layer | \n51.260 | \n40.687 | \n0.235 | \n19 | \n
Outer layer | \n50.120 | \n41.047 | \n0.236 | \n17 | \n|
Two-layered FGL | \nInner layer | \n49.634 | \n25.391 | \n0.235 | \n16 | \n
Outer layer | \n48.583 | \n41.199 | \n0.233 | \n7 | \n
Mechanical properties of lining concretes.
We firstly pour the inner layer and then the outer layer. The process in detail is as follows:
Choose 400- and 300-mm-radius steel cylinders (R400 and R300) as the outer and inner moulds of the lining inner layer, respectively, and fix them on the bottom steel ring, making sure they are located with the same axis (Figure 16(I)).
Wipe release agent and pour concrete of the inner layer (Figure 16(I)). In order to fix the top steel ring and ensure the contact between the concrete and the top steel ring, a certain space should be reserved and the surface should be rough (Figure 16(I)).
24 hours later, tear down the outer mold.
Choose 500-mm-radius steel cylinder (R500) as the outer mold of the lining outer layer, wipe release agent, and fix it around the bottom steel ring (Figure 16(II)).
Pour the concrete of the outer layer (Figure 16(III)) and fix the top steel ring.
Tear down R300 and R500 (Figure 16(IV)).
48 hours later, move lining into the special curing box.
As mentioned earlier, both ends of linings are poured in steel rings, we can say both ends are fixed in the horizontal cross section, which, of course, will lead to difference between the theoretical model and the test linings. So, three monitoring cross sections are all in the middle part of the linings. The monitoring parameters contain the radial displacements on the inner surface (all displacement sensors are fixed on a vertical steel cylinder with magnetic stands, the axial displacements at both ends, and the tangential and axial strains on the inner and outer surfaces). Due to the limited working space, displacements only in the upper two cross sections are monitored. Figure 17 shows the layout of monitoring points.
\nLayout of monitoring points (mm): (A) unfolded section; (B) vertical section; and (C) horizontal section.
As mentioned earlier, the load process is accomplished in three steps. In this section, we just analyze the third step, that is, confining pressure step. In addition, due to the complexity and the long loading time, only part of displacement sensors and strain gages work regularly, so, in our analysis, only effective data are illustrated. For the test results, the sign convention is defined positive for tension strain and outward displacement, and negative for compressive strain and inward displacement. All data, related to displacements, strains, and pressures, are collected with interval of 5 seconds.
\nFigure 18 illustrates the curves of the confining pressure versus loading time. Figure 19 illustrates the convergences along inner boundaries of linings versus support pressure, containing model test and theoretical results. As can be seen from Figure 19, the confining pressures of both the TSL and DFGL drop suddenly after reaching the maximum values. For comparison, the results of theory and model test are listed in Table 7. It can be noted that the maximum confining pressure that the DFGL can bear in model test is approximately 20.44 MPa, 24.56% greater than that of the TSL, 16.41 MPa. The two maximum confining pressures are close to the theoretical elastic ultimate bearing capacities of the DFGL and TSL (19.24 and 16.00 MPa, corresponding to points D and A in Figure 19), respectively.
\nLoading scheme.
Convergences along inner boundaries of linings versus support pressure.
Lining types | \nElastic ultimate bearing capacities (μ = 0.5), pe (MPa) | \nPlastic ultimate bearing capacities, pp (MPa) | \nMaximum confining pressure in model tests, pmax (MPa) | \n
---|---|---|---|
TSL | \n16.00 | \n25.54 | \n16.41 | \n
DFGL | \n19.24 (19.741) | \n25.54 | \n20.44 | \n
IFGL | \n25.54 | \n25.54 | \n\n |
Ultimate bearing capacities of linings.
The value for μ = 0.24.
It should be noted that the two theoretical elastic ultimate bearing capacities of the DFGL and TSL are obtained by assuming the lining concrete as incompressible, that is, μ = 0.5. According to the theoretical analysis, the plastic ultimate bearing capacities are just affected by the material strengths, having nothing to do with the Poisson’s ratio. The only one elastic ultimate bearing capacity related to the Poisson’s ratio is that of the DFGL (see Table 7). Let μ = 0.24 (see Table 6), we can obtain the elastic ultimate bearing capacities, peDFGL = 19.74 MPa (see point D’ in Figures 18 and 19), which is closer to the maximum confining pressure from the model tests. So, the maximum confining pressures of the TSL and DFGL should be their elastic ultimate bearing capacities, which can also be confirmed by Figure 18.
\nFrom Figure 19, in the elastic stage, the Poisson’s ratio affects the radial displacement of all the three lining structures in a same rule, that is, for a given confining pressure, the radial displacement for μ = 0.24 is greater than that for μ = 0.5. The Poisson’s ratios of the concrete in the model tests are about 0.24. So, the p-ur curves of TSL and DFGL from model tests should be closer to those theoretical ones as μ = 0.24 than as μ = 0.5. The opposite happens, that is, the convergences by model tests are smaller than the analytical values, being closer to the analytical results as μ = 0.5. This situation may be resulted from the restrictions of steel rings at both ends of linings in our model tests (Figure 16).
\nFigure 20 illustrates the extension paths of plastic yielding of all the three lining structures as μ = 0.24 and 0.5. The value of the Poisson’s ratio only affects the plastic yielding path of the DFGL, but not that of the IFGL and TSL, which is because the Poisson’s ratio is related to the displacement and the displacement continuous conditions are used in the elastoplastic analysis of the DFGL, but not in the IFGL and TSL. For μ = 0.24, the plastic yielding will (i) initiate from the inner boundary of the outer layer (point D’ in Figures 19 and 20, where p = 19.74 MPa), not from the inner layer as μ = 0.5; (ii) the inner boundary of the inner layer turns into plastic yielding at point E’, where p = 20.28 MPa; (iii) the outer layer totally turns into plastic state at point F′, where p = 24.42 MPa; and followed by (iv) the inner layer turns into plastic state at point G’, where p = 25.54 MPa.
\nExtension path of plastic yielding.
The purpose of the work is to show a new way to improve the elastic ultimate bearing capacity of a circular single-layered concrete lining. We proposed the concept of functionally graded concrete lining, which is based on the inverse analysis of assuming the concrete failure ruled by the Tresca criterion, and the theoretical analysis can verify the effectiveness of the method. But the requirements of the theoretical ideal functionally graded lining, that is, the constant compressive strength and continuously increasing Young’s modulus in radially outward direction, can hardly be achieved for concrete material. So, we choose the multilayered lining as the alternative.
\nElastoplastic analysis is carried out, and the elastic and plastic ultimate bearing capacities are obtained. The results show that a double-layered functionally graded lining has greater elastic ultimate bearing capacity but the same plastic ultimate bearing capacity comparing with the traditional single-layered lining. The distributions of stresses in ideal functionally graded lining and double-layered functionally graded lining are more reasonable, maximum tangential stress concentration decreasing and no longer in the inner boundary of lining. Even if in the plastic stage, the areas of plastic zone in functionally graded linings are smaller than that in single-layered lining. And the opposite happens for the radial displacement, which is resulted from the lower Young’s modulus of the inner layer. Besides, the Poisson’s ratio has effect on the radial displacement, elastic ultimate bearing capacity, and extension path of plastic yielding.
\nFinally, model tests are conducted in order for verifying the theoretical results. A traditional single-layered lining and a double-layered functionally graded lining are poured and loaded in axial and confining pressures. The maximum confining pressures that the linings can bear in test are only slightly greater than the corresponding theoretical elastic ultimate bearing capacity. Combined with the curves of pressure versus radial displacement, the maximum pressures can be regarded as the respective elastic bearing capacity. In this way, the theoretical results are verified by the model tests and the functionally graded lining would make a great deal of practical sense.
\nThis research work was supported by the Natural Science Foundation of China (Grant No. 51704117, 11572126). Their financial support is gratefully acknowledged.
\nThe authors declare that they have no conflict of interest.
Chronic myeloproliferative disorders are a group of clonal diseases of the stem cell. It is a group of several diseases with some common features. They derive from a multipotential hematopoietic stem cell. A clone of neoplastic cells in all these neoplams is characterized by a lower proliferative activity than that of acute myeloproliferative diseases. In each of these diseases, leukocytosis, thrombocythemia, and polyglobulia may appear at some stage, depending on the diagnosis [1, 2].
The research on interferon has been going on since the 1950s [3]. Then, the attention was paid to its influence on the immune system. It has been noted that it can exert an antiproliferative effect by stimulating cells of the immune system [4]. In 1987, a publication by Ludwig et al. was published, which reported the effectiveness of interferon alpha in the treatment of chronic myeloproliferative disorders [5].
More and more new studies have been showing the effectiveness of interferon alpha in reducing the number of platelets, reducing the need for phlebotomies in patients with polycythemia vera and also in reducing the number of leukocytes. Moreover, interferon reduced the symptoms of myeloproliferative disorders such as redness and itching of the skin. Additionally, it turned out to be effective in reducing the size of the spleen.
Further studies on the assessment of remission using molecular-level response assessments indicate that the interferon action in chronic myeloproliferation diseases targets cells from the mutant clone with no effect on normal bone marrow cells [6].
Over the years, interferon alpha-2a and interferon alpha-2b have been introduced into the treatment of chronic myeloproliferation, followed by their pegylated forms. The introduction of pegylated forms allowed for a reduction in the number of side effects and less frequent administration of the drug to patients. In recent years, monopegylated interferon alpha-2b has been used to further increase the interval between drug administrations while maintaining its antiproliferative efficacy.
The exact mechanism of action of interferon alpha in the treatment of chronic myeloproliferative disease is still not fully understood, but it has an impact on JAK2 (Janus Kinase) signal transducers and activates the STAT signal pathway (Janus Kinase/SignalTransducer and Activator of Transcription).
Interferon alpha binds to IFNAR1 and IFNAR2c, which are type I interferon receptors. Interferon alpha has an impact on JAK2(Janus Kinase) signal transducers and activates the STAT signal pathway. The disturbances in this signaling pathway are observed in chronic myeloproliferative disorders [7].
Interferon inhibits the JAK-STAT signaling pathway by directly inhibiting the action of thrombopoietin in this pathway [8].
So far, three driver mutations have been described in the course of chronic myeloproliferative diseases that affect the functioning of the JAK-STAT pathway.
JAK2 kinase and JAK1, JAK3, and TYK2 kinases belong to the family of non-receptor tyrosine kinases. They are involved in the intracellular signal transduction of the JAK-STAT pathway. It is a system of intracellular proteins used by growth factors and cytokines to express genes that regulate cell activation, proliferation, and differentiation. The mechanism of JAK activation is based on the autophosphorylation of tyrosine residues that occurs after ligand binds to the receptor. JAK2 kinase transmits signals from the hematopoietic cytokine receptors of the myeloid lineage (erythropoietin, granulocyte-colony stimulating factor thrombopoietin, and lymphoid lineage [9].
A somatic G/T point mutation in exon 14 of the JAK2 kinase gene converts valine to phenylalanine at position 617 (V617F) in the JAK2 pseudokinase domain, which allows constitutive, ligand-independent activation of the receptor to trigger a proliferative signal [10].
Mutation of the MPL gene, which encodes the receptor for thrombopoietin, increases the sensitivity of magekaryocytes to the action of thrombopoietin, which stimulates their proliferation [11].
Malfunction of calreticulin as a result of mutation of the CARL gene leads to the activation of the MPL-JAK/STAT signaling pathway, which is independent of the ligand, as calreticulin is responsible, for the proper formation of the MPL receptor. Consequently, there is a clonal proliferation of hematopoietic stem cells [12].
Below, we provide an overview of some clinical studies on the efficacy of interferon in chronic myeloproliferative disorders.
Polycythemia vera (PV) is characterized by an increase in the number of erythrocytes in the peripheral blood.
Polycythemia vera is caused by a clonal mutation in the multipotential hematopoietic stem cell of the bone marrow. The mutation leads to an uncontrolled proliferation of the mutated cell clone, independent of erythropoietin and other regulatory factors. As the mutation takes place at an early stage of hematopoiesis, an increase of the number of erythrocytes as well as of leukocytes and platelets is observed in the peripheral blood. The cause of proliferation in PV independent from external factors is a mutation in the Janus 2 (JAK2) tyrosine kinase gene. The V617F point mutation in the JAK2 gene is responsible for about 96% mutation, and in the remaining cases the mutation arises in exon 12. Both mutations lead to constitutive activation of the JAK-STAT signaling pathway [13].
As a result of the uncontrolled proliferation, blood viscosity increases, which generates symptoms such as headaches and dizziness, visual disturbances, or erythromelalgia. As the number of all hematopoietic cells, including the granulocytes ones, increases, the difficult to control symptoms of their hyperdegranulation may appear, among which gastric ulcer or skin itching is often observed. During the disease progression, the spleen and liver become enlarged.
The most common complication of the disease is episodes of thrombosis, especially arterial one. During the course of the disease, it can also evolve into myelofibrosis or acute myeloid leukemia.
The treatment of PV is aimed at preventing thromboembolic complications, relieving the general symptoms, the appearance of hepatosplenomegaly as well as preventing its progression.
Each patient should receive an antiplatelet drug chronically, and usually acetylsalicylic acid is the choice. Most often, the treatment is started with phlebotomy in order to rapidly lower the hematocrit level. If cytoreductive therapy is necessary, the drugs of first choice are hydroxycarbamide and interferon [2].
However, the research on the mechanism of the action of interferons is still ongoing. In vitro studies with CD34+ cells from peripheral blood of patients diagnosed with polycythemia vera showed that interferon inhibits clonal changed cells selectively. It was found that interferon alpha-2b and pegylated interferon alpha-2a reduce the percentage of cells with JAK2 V617F mutation by about 40%. Pegylated interferon alpha-2a works by activating mitogen-activated protein kinase P38. It affects CD34+ cells of patients with polycythemia vera by increasing the rate of their apoptosis [6].
A case of a patient with PV with a confirmed chromosomal translocation t(6;8) treated with interferon alpha-2b, which resulted in a reduction of the clone with translocation by 50% from the baseline value, was also described [14].
In 2019, the results of a phase II multicenter study were published, which aimed at assessing the effectiveness of recombinant pegylated interferon alpha-2a in cases of refractory to previously hydroxycarbamide therapy. The study included 65 patients with essential thrombocythemia (ET) and 50 patients with polycythemia vera. All patients had previously been treated with hydroxycarbamide and showed resistance to this drug or its intolerance.
The assessment of the response was performed after 12 months of treatment. Overall response rate to interferon was higher in patients diagnosed with ET than in patients with polycythemia vera. In essential thrombocythemia, the percentage of achieved complete remissions was 43 and 26% of partial remissions. The remission rate in ET patients was higher if calreticulin CALR gene mutation was present. Patients with polycythemia vera achieved complete remission in 22% of cases and partial remission in 38% of cases.
Treatment-related side effects that follow to discontinuation of treatment were reported in almost 14% of patients [15].
The duration of response to treatment with pegylated interferon alpha-2a and the assessment of its safety in long-term use in patients with chronic myeloproliferative disorders was the goal of a phase II of the single-center study. Forty-three adult patients with polycythemia vera and 40 patients with essential thrombocythemia were enrolled in the study. The complete hematological response was defined as a decrease in hemoglobin concentration below 15.0 g/l, without phlebotomies, a resolution of splenomegaly, and no thrombotic episodes in the case of PV, and for essential thrombocythemia—a decrease platelet count below 440,000/μl and two other conditions as above. The assessment of the hematological response was performed every 3–6 months. The median follow-up was 83 months.
The hematological response was obtained in 80% of cases for the entire group. In patients with polycythemia vera, 77% of patients achieved a complete response (CR) while 7% a partial response (PR). The duration of response averaged 65 months for CR and 35 months for PR. In the group of patients diagnosed with essential thrombocythemia, CR was achieved in 73% and PR in 3%. The durance of CR was 58 months and PR was 25 months.
The molecular response for the entire group was achieved in 63% of cases.
The overall analysis showed that the duration of hematological remission and its achievement with pegylated interferon alpha-2a treatment is not affected neither by baseline disease characteristics nor JAK2 allele burden and disease molecular status. There was also no effect on age, sex, or the presence of splenomegaly.
During the course of the study, 22% of patients discontinued the treatment, because of toxicity. Toxicity was the greatest at the beginning of treatment. The starting dose was 450 μg per week and was gradually tapered off.
Thus, on the basis of the above observations, the researchers established that pegylated interferon alpha-2a may give long-term hematological and molecular remissions [16].
The assessment of pegylated interferon alpha-2a in group of patients diagnosed with polycythemia vera only was performed. The evaluation was carried out on a group of 27 patients. Interferon decreased the JAK2 V617F allele burden in 89% of cases. In three patients who were JAK2 homozygous at baseline, after the interferon alpha-2a treatment wild-type of JAK2 reappeared. The reduction of the JAK2 allele burden was estimated from 49% to an average 27%, and additional in one patient the mutant JAK2 allele was not detectable after treatment. It can therefore be postulated that the action of pegylated interferon alpha-2a is directed to cells of the polycythemia vera clone [17].
In 2005, the results of treatment by pegylated interferon alpha-2b of 21 patients diagnosed with polycythemia vera and 21 patients diagnosed with essential thrombocythemia were published. In the case of polycythemia vera in 14 patients, PRV-1 gene mutation was initially detected. In 36% of cases, PRV-1 expression normalized after treatment with pegylated interferon alpha-2b. For the entire group of 42 patients, the remission assessment showed that complete remission was achieved in 69% cases after 6 months of treatment. However, only in 19 patients remission was still maintained 2 years after the start of the study. Pegylated interferon alpha-2b was equally effective in patients with PV and ET. The use and the type of prior therapy did not affect the achievement of remission [18].
Another study with enrolled only PV patients included 136 patients. They were divided into two arms. One group received interferon alpha-2b and the other group received hydroxycarbamide. Interferon dosage was administered in 3 million units three times a week for 2 years and then 5 million units two times a week. Hydroxycarbamide was administered at a dose between 15 and 20 mg/kg/day.
In the group of patients treated with interferon, a significantly lower percentage of patients developed erythromelalgia (9.4%) and distal parasthesia (14%) compared with the group treated with hydroxycarbamide, for whom these percentages were respectively: 29 and 37.5%. Interferon alpha-2b was found to be more effective in inducing a molecular response, which was achieved in 54.7% of cases, in comparison with hydroxycarbamide—19.4% of cases, despite the fact that the percentage of achieved general hematological responses did not differ between the groups and amounted about 70%. The 5-year progression free period in the interferon group was achieved in a higher percentage (66%) than in the hydroxycarbamide group (46.7%) [19].
The most recent form of interferon approved by the
Thanks to these changes to the structure of the molecule, it was possible to achieve a significant increase in its half-life. Ropeginterferon can be administered subcutaneously to patients every 14 days. The clinical trials conducted so far have assessed the ropeginterferon dose from 50 micrograms to a maximum dose of 500 microgams administered as standard every 2 weeks. The possible dose change in case of side effects includes not only the reduction of the drug dose itself, but also the extension of the interval between doses. The extension of the dosing interval up to 4 weeks was assessed.
Ropeginterforn was approved in 2019 by the EMA for the use in patients diagnosed with polycythemia vera without splenomegaly, as monotherapy.
Ropeginterferon, like the previous forms of interferons used in treatment, is contraindicated in patients with severe mental disorders, such as severe depression. It is also a contraindication in patients with noncompensatory standard treatment of disorders of the thyroid gland as well as severe forms of autoimmune diseases. The safety profile of ropeginterferon is similar to that of other forms of alpha interferons. The most common side effects are flu-like symptoms [20].
Ropeginterferon has been shown to exhibit in vitro activity against JAK2-mutant cells. The activity of ropeginterferon against JAK2-positive cells is similar to that of other forms of interferons used actually for standard therapy. Ropeginterferon has an inhibitory effect on erythroid progenitor cells with a mutant JAK2 gene. At the same time, it has almost no effect on progenitor cells without the mutated allele (JAK2-wile-type) and normal CD34+ cells. A gradual decrease of JAK2-positive cells was observed in patients with PV during ropeginterferon treatment. The examination was performed after 6 and 12 months of treatment. In comparison, the reduction in the percentage of JAK2 positive cells in patients treated with hydroxycarbamide was significantly lower.
These results may suggest that ropeginterferon may cause elimination of the mutant clone, but further prospective clinical trials are needed to confirm this theory. The evaluation was performed on a group of patients enrolled in the PROUD-PV study who were treated in France [21].
In 2017, a multicenter study was opened in Italy. The study was of the second phase. In total, 127 patients with polycythemia vera were included in the study. All patients enrolled on the study had low-risk PV. The clinical trial consisted of two arms. Patients received phlebotomies and low-dose aspirin in one arm and ropeginterferon in the other arm. The aim of the study was to achieve a hematocrit of 45% or lower without any evidence of disease progression. Ropeginterferon was administered every 2 weeks at a constant dose of 100 μg.
The response to the treatment was assessed after 12 months. The reduction of hematocrit to the assumed level was achieved in significantly higher percentage of patients in the ropeginterferon group than of patients who received only phlebotomies and aspirin. In addition, none of the patients treated with ropeginterferon experienced disease progression during the course of the study, while among those treated with phlebotomies, 8% of patients progressed.
Grade 4 or 5 adverse events were not observed in patients treated with ropeginterferon, and the incidence of remaining adverse event (AE) was small and comparable in both arms. The most common side effects in the ropeginterferon group were flu-like symptoms and neutropenia; however, the third-grade neutropenia was the most common (8% of cases) [22].
One of the most important clinical studies on the use of ropeginterferon was the PROUD-PV study and its continuation: the CONTINUATION-PV study. These were three-phase, multicenter studies. The aim of the study was to compare the effectiveness of ropeginterferon in relation to hydroxycarbamide. The study included adult patients diagnosed with polycythemia vera treated with hydroxycarbamide for less than 3 years and no cytoreductive treatment at all. In total, 257 patients received this treatment. The patients were divided into two groups: those receiving ropeginterferon or the other being given hydroxycarbamide.
During the PROUD-study, drug doses were increased until the hematocrit was achieved below 45% without the use of phlebotomies, and the normalization of the number of leukocytes and platelets was reached.
The PROUD-PV study lasted 12 months. After this time, the patients continued the treatment under the CONTINUATION-PV study for further 36 months. After the final analysis performed in the 12th month at the end of PROUD study, it was found that the hematological response rates did not differ between the ropeginterferon and hydroxycarbamide treatment groups. These were consecutively 43% in the ropeginterferon arm and 46% in the control arm.
However, after analyzing the CONTINUATION- PV study, it turned out that after 36 months of treatment, the rates of hematological responses begin to prevail in the group of patients receiving ropeginterferon, 53% versus 38% in the control group. Thus, from the above data, it can be seen that the response rate to ropeginterferon increases with the duration of treatment [23].
Another analysis of patients participating in the PROUD and CONTINUATION studies was based on the assessment of treatment results after 24 months, dividing patients into two groups according to age (under and over 60 years).
The initial comparison of both groups of patients showed that older patients had a more aggressive course of the disease. Patients over 60 years of age had a higher percentage of cells with a mutant JAK2 allele. They experienced both general symptoms and some complications, such as thrombosis, more frequently. Both patients under 60 years of age and over 60 years of age in the ropeginterferon arm had a higher rate of molecular response, namely 77.1 and 58.7% compared with the HU remission: 33.3 and 36.1%, respectively. Significantly higher reductions in the JAK2 allele were observed in both groups of patients after ropeginterferon treatment: it was 54.8% for younger patients and 35.1% for elderly patients. For comparison, this difference in the group of patients treated with HU was 4.5 and 18.4%, respectively.
What is more, the age did not affect the frequency of ropeginterferon side effects. In addition, the incidence of adverse ropeginterferon disorders was similar to that observed in the hydroxycarbamide group [24].
Essential thrombocythemia is a clonal growth of multipotential stem cells in the bone marrow. The consequence of this is increased proliferation of megakaryocytes in the bone marrow and an increase in the number of platelets in the peripheral blood. The level of platelets above 450,000/μl is considered a diagnostic criterion.
Essential thrombocythemia may progress over time to a more aggressive form of myeloproliferation, i.e., myelofibrosis. The disease can also evolve into acute myeloid leukemia or myelodysplastic syndrome, both with very poor prognosis. Thromboembolic complications are serious, and they concern over 20% of patients. Thrombosis occurs in the artery and venous area. Moreover, in patients with a very high platelet count, above 1,000,000/μl, bleeding may occur as a result of secondary von Willebrand syndrome [1, 2].
The treatment of ET is primarily aimed to prevent thrombotic complications.
In low-risk patients, only acetylsalicylic acid is used. In cases of high-risk patients, hydroxycarbamide is the first-line drug for most patients. Anagrelide and interferon are commonly used as second-line drugs.
Due to the possible effects of hydroxycarbamide of cytogenetic changes in the bone marrow cells after long-lasting usage, some experts recommend the use of interferon in younger patients in the first line. Interferon is also used as the drug of choice in patients planning a pregnancy [25].
The efficacy of pegylated interferon alpha-2a was assessed on the basis of the group of 39 patients with essential thrombocythemia and 40 patients with polycythemia vera.
Of the overall group, 81% of patients were previously treated prior to the study entry. The patients received pegylated interferon alpha-2a in a dose of 90 μg once a week. The dose of 450 μg was associated with a high percentage of intolerance.
In patients with essential thrombocythemia, the complete remission was achieved in 76%, while the overall hematological response rate brought 81%. Moreover, the molecular remission was achieved in 38%, in 14% of cases, JAK2 transcript became not detectable.
Patients diagnosed with polycythemia vera achieved 70% complete hematological remission and 80% general hematological response to treatment. JAK2 transcript was undetectable in 6% of patients. Molecular remission was achieved in 54% of cases.
Pegylated interferon alpha-2a at the dose of 90 μg per week was very well tolerated. In total, 20% of patients experienced a grade of 3 or 4 of adverse reaction, which was neutropenia. In addition, an increase in liver function tests was observed. Grade 4 of AE was not observed among patients who started the treatment with 90 μg/week while grade 3 neutropenia was an adverse event in only 7% of cases [26].
The effect of interferon alpha-2b treatment in patients with ET and PV was investigated. The study was prospective. Some of the results concerning the group of patients with polycythemia vera are presented in the subsection on polycythemia vera. In total, 123 patients with diagnosed essential thrombocythemia participated in the study. All of them received interferon alpha-2b. The patients were divided into two groups depending on the presence of the JAK2 V617F mutation. The enrolled patients were between 18 and 65 years of age. The treatment they received was, sequentially, interferon alpha-2b in the dose of 3 million units three times a week for the first 2 years, after which time the dose was changed into a maintenance dose, which amounted to 5 million units two times a week.
The analysis showed that the patients with the JAK2 V617F mutation present in a higher percentage achieved an overall hematological response as well as a complete hematological response. The overall hematological response was achieved in 83% of patients with JAK2 mutation, and the complete hematological remission was achieved in 23 cases. In the group of ET patients without the JAK2 V617F mutation, overall hematological response was achieved in 61.4%, while the complete hematological remission was achieved in 12 patients. The 5-year progression-free survival was obtained in 75.9% in the JAKV617F group and only in 47.6% without the mutation.
A significant proportion of patients experienced mild side effects. Grade 3 and 4 of adverse events were severe, most of them being a fever. The isolated cases of elevated liver tests and nausea have also been reported [19].
Pegylated interferon alpha-2b in patients with essential thrombocythemia who were previously treated with hydroxycarbamide, anagrelide, and other forms of interferon alpha, however, due to the lack of efficacy or toxicity, the patients required a change of treatment, was assessed. Pegylated interferon alpha-2b turned out to be effective in these cases. It led to the complete hematological remission in 91% of patients after 2 months of therapy, and in 100% of patients after 4 months. However, merely 11 patients participated in the study. Also only two patients required treatment discontinuation due to the side effects such as depression and general fatigue grade 3 [27].
In case of pregnant patients, interferon is currently considered the only safe cytoreductive drug. Over the years, several analyses of the results of interferon treatment during pregnancy have been carried out.
The assessment of 34 pregnancies in 23 women diagnosed with ET was performed retrospectively. All the pregnancies included in the analysis were of high risk. This high risk was associated with a high platelet count above 1,500,000/μl, a history of thrombotic episode, severe microcirculation disorders, or a history of major hemorrhage.
It turned out that the use of interferon allowed the birth of an alive child in 73.5% of cases. There was no difference in efficacy between the basic and pegylated forms of interferon alpha. In pregnancies without interferon treatment, the percentage of live births was only 60%. Moreover, it was not found if the presence of the JAK2 V617F mutation had any influence on the course of pregnancy [28].
An analysis of the course of pregnancy in patients with ET was assessed in Italy. Data from 17 centers were taken into account. Data from 122 pregnancies were collected from 92 women. In patients diagnosed with essential thrombocythemia, the risk of the spontaneous loss of pregnancy is about 2.5 times higher than among the general population. In the contrary to the study quoted above, it was found that the presence of the JAK2 mutation increases the risk of pregnancy loss. The proportion of live births in patients exposed to interferon during pregnancy was 95%, compared with 71.6% in the group of patients not treated with interferon.
The multivariate analysis also showed that the use of acetylsalicylic acid during pregnancy had no effect on the live birth rate of patients with ET [29].
Whatever its form, interferon is the drug of first choice in pregnancy. Hydroxycarbamide and anagrelide should be withdrawn for about 6 months, and at least for 3 months, before the planned conception. Experts recommend the use of interferon in high-risk pregnancies [30]. A Japanese analysis of 10 consecutive pregnancies in ET patients showed 100% live births in patients who received interferon [31].
In myelofibrosis (MF), monoclonal megakaryocytes produce cytokines that stimulate the proliferation of normal, non-neoplastic fibroblasts and stimulate angiogenesis. The consequence of this is the gradual fibrosis of the bone marrow, impaired hematopoiesis in the bone marrow, and the formation of extramedullary location mainly in the sites of fetal hematopoiesis, i.e., in the spleen and the liver.
The production of various cytokines by neoplastic megakaryocytes leads to the proliferation of normal, noncancerous fibroblasts as well as to increased angiogenesis.
Progressive bone marrow fibrosis leads to worsening anemia and thrombocytopenia. On the other hand, the production of proinflammatory cytokines by megakaryoblasts leads to the general symptoms such as weight loss, fever, joint pain, night sweats, and consequently, progressive worsening of general condition.
The prognosis for myelofibrosis is poor. In about 20% of patients, myelofibrosis evolves into acute myeloid leukemia with poor prognosis.
Currently, the only effective method of treatment that gives a chance to prolong the life is allogeneic bone marrow transplantation. However, this method is only available to younger patients.
The goal of treatment of patients who have not been qualified for allotranspalntation is to reduce the symptoms and to improve the patient’s quality of life. In case of leukocytosis cytoreducing drugs, such as hydroxycarbamide, melphalan, or cladribine can be used. They cause a reduction in the number of leukocytes and may, to some extent, inhibit splenomegaly. Interferon alpha has been used successfully for the treatment of myelofibrosis for many years. The results of its effectiveness will be presented below [2].
Currently, the JAK2 inhibitor ruxolitinib is approved for the treatment of myelofibrosis with enlarged spleen in intermediate and high-risk patients. Ruxolitinib reduces the size of the spleen, reduces general symptoms, and improves the quality of life; however, it does not prolong the overall survival of patients [32].
In 2015, the results of a retrospective study were published to compare the histological parameters of the bone marrow before and after interferon treatment. Twelve patients diagnosed with primary myelofibrosis as well as post-PV MF and post-ET MF were enrolled in the study. Patients were treated with pegylated recombinant interferon alpha-2a or recombinant interferon alpha-2b in standard doses. The time of treatment was from 1 to 10 years. Some patients had previously been treated with hydroxycarbamide or anagrelide. In all cases, karyotype was normal. The prognostic factor of Dynamic International Prognostic Scoring System (DIPSS) was assessed at the beginning as well as during the treatment.
Bone marrow cellularity decreased in cases with increased bone marrow cellularity before the treatment. After the interferon treatment, a reduction in the degree of bone marrow fibrosis was found. The parameters, such as the density of naked nuclei and the density of megakaryocytes in the bone marrow, also improved.
It proves that if the JAK2 V617F mutation had been present, DIPSS was decreased after interferon treatment. This relationship was not observed in patients without the JAK2 V617F mutation. The improvement in peripheral blood morphological parameters and the overall clinical improvement correlated with the improvement in the assessed histological parameters of the bone marrow.
Before the initiation of interferon, seven patients had splenomegaly. During the treatment with interferon, the complete resolution of splenomegaly was achieved in 17% of patients (two cases), and its size decreased in 25% (three cases). A good clinical response was achieved in 83% during interferon therapy. There was no significant difference in response between the two types of interferon used [33].
A prospective study was also conducted in patients with low and intermediate-1 risk group myelofibrosis. Seventeen patients were enrolled. Patients received interferon alpha-2b (0.5–3 milion units/three times a week) or pegylated interferon alpha-2a (45–90 μg/week). The duration of therapy was on average 3.3 years.
Most of the patients responded to the treatment. Partial remission was found in seven patients and complete remission in two patients. Moreover, in four cases, the disease was stabilized and in one case the clinical improvement was achieved. Three patients did not respond to treatment at all and progressed to myelofibrosis. Additionally, the assessment in reducing spleen size was performed. At baseline, 15 patients have splenomegaly, nine of them achieved the compete regression of spleen size [34].
However, the efficacy of interferon in the treatment of myelofibrosis appears to be limited only to a less advanced form, when the bone marrow still has an adequate percentage of normal hemopoiesis and the marrow stroma is not significantly fibrotic. In more advanced stages, interferon was not shown to have any significant effect on the regression of the fibrosis process [35].
In 2020, the results of the COMBI study were published. That was a two-phase, multicenter, single-arm study that investigated the efficacy and safety of the combination of ruxolitinib and pegylated interferon alpha. Thirty-two patients with PV and 18 patients with primary and secondary myelofibrosis participated in the study. The patients were at age 18 and older. Remission was achieved in 44% of myelofibrosis cases, including 28% (5 patients) of complete remission. In patients with PV, the results were slightly worse: 31% of remissions, including 9% of complete remissions. Patients received pegylated interferon alpha-2a (45 μg/week) or pegylated interferon alpha-2b (35 μg/week) in low doses and ruxolitinib in doses of 5–20 mg twice a day.
For the entire group of patients (with PV and MF), the initial JAK2 allele burden was 47% at baseline, and after 2 years of treatment with interferon and ruxolitinib, it decreased to 12%.
The treatment toxicity was low. The highest incidence of side effects occurred at initiation of therapy. It was mostly anemia and thrombocytopenia.
The observations from the COMBI study show that, for the combination of interferon in lower doses with ruxolitinib, it may be effective and well tolerated even in the group of patients who had intolerance to interferon used as the only drug in higher doses. The combined treatment improved the bone marrow in terms of fibrosis and its cellularity. It also allowed to improve the value of peripheral blood counts [36].
It is currently known that some of the additional mutations are associated with a worse prognosis in patients with myelorpoliferation, including patients with myelofibrosis. Some of these mutations have been identified as high-risk molecular mutations. These are ASXL1, EZH2, IDH1/2, or SRSF2. Earlier studies have shown their association with a more aggressive course of the disease, worse prognosis, and shorter survival of patients, as well as a poorer response to treatment. Due to their importance, they have been included in the diagnostic criteria of myelofibrosis [37].
It is also known that the presence of driver mutations, i.e., JAK2, CALR, and MPL or triple negativity, may affect the course of myeloproliferation, including the incidence of thromboembolic complications.
The assessment of the influence of driver mutations and a panel of selected additional mutations on the effectiveness of interferon treatment in patients with myelofibrosis was performed on a group of 30 patients. Only the patients with low- and intermediate-1-risk were enrolled in the study. The treatment with pegylated interferon alpha-2a or interferon alpha-2b resulted in a complete remission in two patients and partial remission in nine patients. The disease progressed in three cases. One patient relapsed and four died. The remaining patients achieved a clinical improvement or disease stabilization. In the studied group, it was not found if the effectiveness of interferon treatment was influenced by the lack of driver mutations. Among the group of four patients with additional mutations, two died and one had disease progression. It was a mutation of ASXL1 and SRSF2. The treatment with interferon in patients without additional molecular mutations in the early stages of the disease may prevent further progression of the disease [38].
The side effects of interferon in the group of patients with myelofibrosis are similar to those occurring after the treatment of other chronic myeloproliferative diseases. The most frequently described are hematological toxicity- anemia and thrombocytopenia, less often is the appearance of leukopenia. Hematological toxicity usually resolves with dose reduction or extension of the dose interval. The most frequently nonhematological toxicity was fatigue, muscle pain, weakness, and depression symptoms. All symptoms are usually mild and do not exceed grade 2 [38].
However, the use of interferon in the treatment of myelofibrosis has not been recommended as a standard therapy. Interferon is still being evaluated in clinical trials, or it is used in selected patients as a nonstandard therapy in this diagnosis.
Mastocytosis is characterized by an excessive proliferation of abnormal mast cells and their accumulation in various organs.
The basis for the development of mastocytosis is ligand-independent activation of the KIT receptor, resulting from mutations in the KIT proto-oncogene. The KIT receptor is a trans membrane receptor with tyrosine kinase’s activity. Its activation stimulates the proliferation of mast cells. That excessive numbers of mast cells infiltrate tissues and organs and release mediators such as histamine, interleukine-6, tryptase, heparin, and others, which are responsible for the appearance of symptoms typical of mastocytosis. In addition, the infiltration of tissues for mast cells itself causes damage to the affected organs.
The prognosis of mastocytosis depends on the type of the disease. In the case of cutaneous mastocytosis (CM), in the majority of cases prognosis is good and the disease does not shorten the patient’s life, but in aggressive systemic mastocytosis (ASM), the average follow-up is about 40 months. Mast cell leukemia has a poor prognosis with a median follow-up of approximately 1 year.
Systemic mastocytosis usually requires the implementation of cytoreductive therapy. The first line of therapy is interferon alone or its combination with corticosteroids. In aggressive systemic mastocytosis, the first line in addition to interferon 2-CdA can be used. An effective drug turned out to be midostaurin in the case of the present KIT mutation. In patients without the KIT D816V mutation, treatment with imatinib may be effective. In the case of mast cell leukemia, multidrug chemotherapy is most often required, as in acute leukemias, followed by bone marrow transplantation [39].
Systemic mastocytosis requiring treatment is a rare disease, this is why the studies available in the literature evaluating various therapies concern mostly small groups of patients.
In 2002, the French authors presented their experiences on the use of interferon in patients with systemic mastocytosis. They included 20 patients. The patients received interferon alpha-2b in gradually increased doses.
The patients were assessed after 6 months. In cases in which bone marrow was infiltrated for mast cells at baseline, it still remained infiltrated after 6 months of treatment.
However, the responses were obtained in terms of symptoms related to mast cell degranulation. Partial remission was achieved in 35% of patients and minor remission in 30%. It concerns mainly skin lesions and vascular congestion. Moreover, the assessment of the histamine level in the plasma revealed a decrease of it in patients who previously presented symptoms related to the degranulation of mast cells, such as gastrointestinal disorders and flushing.
A high percentage of side effects were found during treatment. They concerned 35% of patients. Depression and cytopenia were most frequent ones [40].
Another analysis was a report of five patients with systemic mastocytosis treated with interferon and prednisolone. All patients received interferon alpha-2b in a dose of 3 million units three times a week and four patients additionally received prednisolone. Four patients responded to interferon treatment at varying degrees. One patient, who at baseline had bone marrow involvement by mast cells in above 10%, progressed to mast cell leukemia. In two patients, the symptoms C resolved completely and in one of them they partially disappeared. In one case, stabilizing disease was achieved [41].
In 2009, a retrospective analysis of patients treated with cytoreductive therapy due to mastocytosis was published. The authors collected data from 108 patients treated at the Mayo Clinic. This analysis allowed for the comparison of the efficacy of four drugs used in systemic mastocytosis. There were interferon alpha alone or in the combination with prednisone—among 40 patients, hydroxycarbamide—among 26 ones, imatinib—among 22 persons, and 2-chlorodeoxyadenosine (2-CdA)—among 22 patients.
After dividing the patients into three additional groups on the basis of the type of mastocytosis—indolent systemic mastocytosis, aggressive systemic mastocytosis, and systemic mastocytosis associated with another clonal hematological nonmast cell lineage disease (SM-AHNMD)—the effectiveness of each of type of therapy was assessed.
The highest response rates in indolent and aggressive mastocytosis were achieved with interferon treatment. They were 60% of the responses in both groups, and in the SM-AHNMD group of patients, the percentage was also one of the highest and amounted to 45%. The second most effective drug was 2-CdA. The response rates were 56% for indolent MS, 50% for aggressive MS, and 55% for SM-AHNMD. The patients treated with imatinib achieved response in 14, 50, and 9% by following groups, respectively. In contrast, patients with indolent and aggressive systemic mastocytosis did not respond to hydroxycarbamide treatment at all. The response rate in both groups was 0%. However, patients with MS associated with another clonal hematological nonmast cell lineage disease achieved 21% response to hydroxycarbamide. Additionally, it was found that only interferon relieved symptoms caused by the release of inflammatory mediators by mast cells.
The additional analysis showed no influence of the TET 2 mutation on the response to treatment [42].
In the literature, there are also single cases of mastocytosis presenting trials of nonstandard treatment. That is description of a patient with systemic mastocytosis with mast cell bone marrow involvement. Mutation of c-kit Asp816Val was present. Patient progressed despite treatment with dasatinib and 2-chlorodeoxyadenosine. The patient developed symptoms related to the degranulation of mast cells and increased ascites.
The patient was treated with pranlukast, which is an anti-leukotriene receptor antagonist due to an asthma episode. The rate of ascites growth decreased significantly after one administration. The patient required paracentesis every 10 days and not every 3 days, as before starting to take the drug. After 15 days of treatment with pranlukast, the patient received interferon alpha, which resulted in complete regression of ascites, resolution of pancytopenia, and complete disappearance of the c-kit mutation clone. The infiltration of mast cells in the bone marrow significantly decreased [43].
Interferon alpha was also effective in a patient with systemic mastocytosis associated with myelodysplastic syndrome with the c-kit D816V mutation, which was refractory to imatinib treatment [44].
Interferon alpha also proved to be effective in the treatment of osteoporotic lesions appearing in the course of mastocytosis.
The series of 10 cases with resolved mastocytosis and osteoporosis-related fractures was presented in 2011. The patients received interferon alpha in a dose of 1.5 million units three times a week as well as pamindronic acid. The patients were treated for an average of 60 months. For the first 2 years, pamindronate was given at a dose of 1 mg/kg every month, and then every 3 months.
During the course of the study, no patient had a new-bone fracture. The level of alkaline phosphatase decreased by 25% in relation to the value before treatment and tryptase by 34%. Bone density increased during treated with interferon and pamindronate. The increase was on average 12% in the spine bones and 1.9% in the hip bones. At the same time, there was no increase in the density of the hip bone and a minimal increase in the density of the spine in patients treated with pamindronate alone.
The results of this observation suggest that it is beneficial to add low doses of interferon alpha to pamindronate treatment in terms of bone density increase [45].
That experiences show that interferon used in systemic mastocytosis significantly improves the quality of life of patients by inhibiting the symptoms caused by degranulation of mast cells. They prevent bone fractures and, in some patients, they cause remission of bone marrow infiltration by mast cells.
Chronic neutrophilic leukemia (CNL) is a very rare disease. It is characterized by the clonal proliferation of mature neutrophils.
The diagnostic criteria proposed by the World Health Organization (WHO) comprise leukocyte counts above 25,000/μl (including more than 80% of rod and segmented
Physical examination often shows enlargement of the liver and spleen, moreover, patients complain on weight loss and weakness [1].
The prognosis varies. The average survival time for patients with CNL is less than 2 years.
Only few descriptions of chronic neutrophilic leukemia are available in the literature, and these are mostly single case reports.
Because it is an extremely rare disease, there are no established and generally accepted treatment standards. In most cases, patients are given hydroxycarbamide or interferon. Patients who are eligible for a bone marrow transplant may benefit from this treatment. Bone marrow allotransplantation remains the only method that gives a chance for a significant extension of life.
The German authors presented a series of 14 cases of chronic neutrophilic leukemia. The group of patients consisted of eight women and six men. The average age was 64.7 years. From the entire group of patients, longer survival was achieved only in three cases. One of these patients was treated with interferon alpha and achieved hematological remission, the other underwent bone marrow allotransplantation from a family donor, and the third one was treated with hydroxycarbamide and transfusions as needed. The follow-up period of the patient after allogeneic matched related donor transplantation (allo-MRD) was 73 months, and for the patient after interferon treatment it was 41 months.
The remaining patients died within 2 years of diagnosis. Six patients, the largest group, died due to intracranial bleeding, three patients died because of leukemia cell tissue infiltration, one patient because of the disease transformation into leukemia, and one patient because of pneumonia [46].
It can be seen from these experiences that treatment with interferon alpha can significantly extend the survival time of patients.
The case of a 40-year-old woman diagnosed with chronic neutrophilic leukemia is presented by Yassin and coauthors. Initially, the patient had almost 41,000 leukocytes in the peripheral blood. In a physical examination, splenomegaly and hepatomegaly were not present. Patient received pegylated interferon alpha-2a. The initially dose was 50 μg once a week for the first 2 weeks, then the dose was increased to 135 μg weekly for 6 weeks, and then the dose interval was extended to another 2 weeks. As a result of the treatment, the general condition of the patient improved and the parameters of peripheral blood counts were normalized [47].
Another case report presented in the literature describes a 41-year-old woman diagnosed with CNL accompanied by focal segmental glomerulosclerosis (FSGS). The patient had increasing leukocytosis for several months. On the admission to the hospital, leukocytosis was 94,000/μl. Moreover, the number of platelets in the morphology exceeded 1,000,000/μl. More than a year earlier, the patient had splenectomy due to splenomegaly and spleen infraction.
Additionally, JAK2 V617F mutation was found. Some authors suggest that the presence of JAK2 mutation may be associated with longer survival in CNL.
The patient received hydroxycarbamide for 3 months and reduction in the number of leukocytes was achieved. After this time, interferon alpha-2b was added to hydroxycarbamide. As a result, focal segmental glomerulosclerosis disappeared and the renal tests improved [48].
Another case of chronic neutrophilic leukemia with a JAK2 gene mutation concerns a 53-year-old man. The patient’s baseline leukocytosis was 33,500/μl, including the neutrophil count of 29,700/μl. The patient also had splenomegaly.
The treatment with interferon alpha-2b at a dose of 3 million units every other day was started. After a month of treatment, the number of leukocytes was reduced to less than 10,000/μl. Then the patient was treated chronically with interferon alpha-2b in doses of 3 million units every 2 weeks. As a result of the therapy, the number of leukocytes remains between 8 and 10,000/μl. The patient remains in general good condition [49].
A series of two CNL cases are also shown. The first patient was a 70-year-old woman with stable leukocytosis of about 35,000/μl and the remaining morphology parameters in normal range. The patient was only observed for 5 years until hepasplenomegaly progressed rapidly. Then, interferon alpha-2b was included. Due to the treatment, the rapid regression of hepatosplenomegaly was achieved.
The second case is a 68-year-old woman with baseline leukocytosis of almost 14,000/μl. In this case, the treatment with hydroxycarbamide was started immediately. However, no improvement was achieved. After 6 weeks of HU treatment, interferon alpha-2b 3 million units 3 times a week was implemented and leukocytosis decreased. Due to the interferon treatment, the disease stabilized for a long time. Because the patient experienced an adverse reaction, a severe flu-like syndrome, interferon was discontinued. After interferon withdrawal, the disease progressed gradually and the treatment attempts by busulfan and 6-mercaptopurine were unsuccessful. Therefore, interferon was readministered and the disease went into remission. Interferon treatment was continued at a reduced dose. The disease regression was achieved again.
Additionally, the patient showed an improvement in the function of granulocytes in terms of phagocytosis and an improvement in neutral killer (NK) cell function after treatment with interferon [50].
The above examples show that interferon alpha is effective in the treatment of chronic neutrophilic leukemia. The side effects are rare and can be managed with dose reductions. Moreover, in these cases, interferon is also effective in a reduced dose. Disease remission or regression can be achieved without typical of CNL complications, such as intracranial bleeding.
Interferon has been used in the past to treat chronic myeloid leukemia. The treatment with tyrosine kinase inhibitors is now a standard practice. However, in a small number of patients, they are ineffective or exhibit unmanageable toxicity. Therefore, the attempts are underway to use interferon in combination with TKI in lower doses, which is to ensure the enhancement of the antiproliferative effect while reducing the toxicity.
There are ongoing attempts to use ropeginterferon in patients diagnosed with chronic myeloid leukemia, in whom treatment with imatinib alone has not led to deep molecular response (DMR). The first phase study was conducted in a small group of patients with chronic myeloid leukemia. The patients in first chronic phase treated with imatinib who did not achieve DMR, but in complete hematologic remission and complete cytogenetic remission, were included in the study. Patients have been treated with imatinib for at least 18 months. Twelve patients were enrolled in the study, and they completed the study according to the protocol. These patients received additional ropeginterferon to imatinib and four achieved DMR. Low toxicity was observed during the treatment. Among the hematological toxicities, neutropenia was the most common. There was no nonhematological toxicity with a degree higher than 1/2 during the treatment. Moreover, it has been found that better effects and fewer side effects are obtained when ropeginterferon is administered for a longer time, but in lower doses. The comparison of the effectiveness of interferon in chronic myeloproliferative disorders based on selected articles is presented in Table 1 [51].
Source | Type of trial | Interferon | Diagnosis | No. | Prior treatment status | Response rate |
---|---|---|---|---|---|---|
Yacoubet al. [15] | Phase II, multicenter | Pegylated IFN alfa-2a | PV | 50 | Resistance to HU or HU intolerance | CR:22% PR:38% |
ET | 65 | CR:43% PR:26% | ||||
Masarova et al. [16] | Phase II, single-center | Pegylated IFN alfa-2a | PV | 43 | Untreated or previously treated with cytoreductive therapy | CR:77% PR:7% |
ET | 40 | CR:73% PR:3% | ||||
Samuelsson et al. [18] | Phase II | Pegylated IFN alfa-2b | PV | 21 | Untreated or previously treated with cytoreductive therapy | CR: 69% for the entire group |
ET | 21 | |||||
Huang BT et al. [19] | Open label, multicenter | IFN alfa-2b | PV | 136 | Untreated or previously treated with cytoreductive therapy | OHR:70% Molecular response:54.7% |
ET | 123 | OHR (JAK2+ patients):83% CHR:23 cases OHR (JAK2-patients): 61.4% CHR:12 cases | ||||
Gisslinger et al. [23] | phase III, multicenter | Ropeginterferon | PV | 257 | Previously treated | OHR:53% |
Quintás-Cardama et al. [26] | phase II | Pegylated IFN alfa-2a | PV | 40 | Untreated or previously treated with cytoreductive therapy | OHR:80% CR:70% Molecular remission:54% |
ET | 39 | OHR:81% CR:76% Molecular remission:38% | ||||
Sørensen et al. [36] | Phase III, multicenter, COMBI | Pegylated IFN alfa-2a with ruxolitinib or Pegylated IFN alfa-2b with ruxolitinib | PV | 32 | Untreated or previously treated with cytoreductive therapy | OHR:44% CR:28% |
MF | 18 | OHR:31% CR:9% | ||||
Casassus et al. [40] | Open label, multicenter | IFN alpha-2b | Mastocytosis | 20 | Untreated and previously treated | PR:35% Minor remission: 30% |
Comparison of the effectiveness of interferon in chronic myeloproliferative disorders.
PV: polycythemia vera; ET: essential thrombocythemia; MF: myelofibrosis; HU: hydroxycarbamide/hydroxyurea; CR: complete remission; PR: partial remission; and OHR: overall hematological response.
Interferon alpha appears to be an effective and safe drug in the most type of chronic myeloproliferative disorders. Nowadays, all forms of its using have similar effectiveness. Interferon alpha can be effective even in cases of resistance for first-line treatment. Trial research is currently underway to combine it with some new drugs, such as ruxolitinib, and to add it to the already well-established therapy, it is a promising option for patients with refractory disease.
From time to time, new forms of interferon, such as ropeginterferon, are introduced, which gives hope for better effectiveness, better safety profile, and greater comfort in its use for patients who have to be treated for many years. In the case of the use of interferons alpha in the treatment of chronic myeloproliferative diseases, there are still opportunities to extend its use and to study its combination with newly introduced drugs.
At IntechOpen, we not only specialize in the publication of Book Chapters as part of our Edited Volumes, but also the publication and dissemination of longer manuscripts, known as Long Form Monographs. Monographs allow Authors to focus on presenting a single subject or a specific aspect of that subject and publish their research in detail.
\n\nEven if you have an area of research that does not at first sight fit within a previously defined IntechOpen project, we can still offer support and help you in publishing your individual research. Publishing your IntechOpen book in the form of a Long Form Monograph is a viable alternative.
",metaTitle:"Publish a Whole Book",metaDescription:"At IntechOpen, we not only specialize in the publication of book chapters as part of our Edited Volumes, but also the publication and dissemination of long form manuscripts, known as monographs. Monographs allow authors to focus on presenting a single subject or a specific aspect of that subject and publish their research at length.\n\nPerhaps you have an area of research that does not fit within a previously defined IntechOpen project, but rather need help in publishing your individual research? Publishing your IntechOpen book in the form of a long form monograph is a great alternative.",metaKeywords:null,canonicalURL:"/page/publish-a-whole-book",contentRaw:'[{"type":"htmlEditorComponent","content":"MONOGRAPH - LONG FORM MANUSCRIPT
\\n\\nFORMATS
\\n\\nCOST
\\n\\n10,000 GBP Monograph - Long Form
\\n\\nThe final price includes project management, editorial and peer-review services, technical editing, language copyediting, cover design, book layout, book promotion and ISBN assignment.
\\n\\n*The price does not include Value-Added Tax (VAT). Residents of European Union countries need to add VAT based on the specific rate applied in their country of residence. Institutions and companies registered as VAT taxable entities in their own EU member state will not pay VAT by providing us with their VAT registration number. This is made possible by the EU reverse charge method.
\\n\\nOptional Services
\\n\\nIntechOpen has collaborated with Enago, through its sister brand, Ulatus, which is one of the world’s leading providers of book translation services. The services are designed to convey the essence of your work to readers from across the globe in a language they understand. Enago’s expert translators incorporate cultural nuances in translations to make the content relevant for local audiences while retaining the original meaning and style. Enago translators are equipped to handle all complex and multiple overlapping themes encompassed in a single book and their high degree of linguistic and subject expertise enables them to deliver a superior quality output.
\\n\\nIntechOpen Authors that wish to use this service will receive a 20% discount on all translation services. To find out more information or obtain a quote, please visit: https://www.enago.com/intech.
\\n\\nFUNDING
\\n\\nWe feel that financial barriers should never prevent researchers from publishing their work. Please consult our Open Access Funding page to explore funding opportunities and learn more about how you can finance your IntechOpen publication.
\\n\\nBENEFITS
\\n\\nPUBLISHING PROCESS STEPS
\\n\\nFor a complete overview of all publishing process steps and descriptions, go to How Open Access Publishing Works.
\\n\\nSEND YOUR PROPOSAL
\\n\\nIf you are interested in publishing your book with IntechOpen, please submit your book proposal by completing the Publishing Proposal Form.
\\n\\nNot sure if this is the right option for you? Please refer back to the main Publish with IntechOpen page or feel free to contact us directly at book.department@intechopen.com.
\\n"}]'},components:[{type:"htmlEditorComponent",content:'MONOGRAPH - LONG FORM MANUSCRIPT
\n\nFORMATS
\n\nCOST
\n\n10,000 GBP Monograph - Long Form
\n\nThe final price includes project management, editorial and peer-review services, technical editing, language copyediting, cover design, book layout, book promotion and ISBN assignment.
\n\n*The price does not include Value-Added Tax (VAT). Residents of European Union countries need to add VAT based on the specific rate applied in their country of residence. Institutions and companies registered as VAT taxable entities in their own EU member state will not pay VAT by providing us with their VAT registration number. This is made possible by the EU reverse charge method.
\n\nOptional Services
\n\nIntechOpen has collaborated with Enago, through its sister brand, Ulatus, which is one of the world’s leading providers of book translation services. The services are designed to convey the essence of your work to readers from across the globe in a language they understand. Enago’s expert translators incorporate cultural nuances in translations to make the content relevant for local audiences while retaining the original meaning and style. Enago translators are equipped to handle all complex and multiple overlapping themes encompassed in a single book and their high degree of linguistic and subject expertise enables them to deliver a superior quality output.
\n\nIntechOpen Authors that wish to use this service will receive a 20% discount on all translation services. To find out more information or obtain a quote, please visit: https://www.enago.com/intech.
\n\nFUNDING
\n\nWe feel that financial barriers should never prevent researchers from publishing their work. Please consult our Open Access Funding page to explore funding opportunities and learn more about how you can finance your IntechOpen publication.
\n\nBENEFITS
\n\nPUBLISHING PROCESS STEPS
\n\nFor a complete overview of all publishing process steps and descriptions, go to How Open Access Publishing Works.
\n\nSEND YOUR PROPOSAL
\n\nIf you are interested in publishing your book with IntechOpen, please submit your book proposal by completing the Publishing Proposal Form.
\n\nNot sure if this is the right option for you? Please refer back to the main Publish with IntechOpen page or feel free to contact us directly at book.department@intechopen.com.
\n'}]},successStories:{items:[]},authorsAndEditors:{filterParams:{},profiles:[{id:"396",title:"Dr.",name:"Vedran",middleName:null,surname:"Kordic",slug:"vedran-kordic",fullName:"Vedran Kordic",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/396/images/7281_n.png",biography:"After obtaining his Master's degree in Mechanical Engineering he continued his education at the Vienna University of Technology where he obtained his PhD degree in 2004. He worked as a researcher at the Automation and Control Institute, Faculty of Electrical Engineering, Vienna University of Technology until 2008. His studies in robotics lead him not only to a PhD degree but also inspired him to co-found and build the International Journal of Advanced Robotic Systems - world's first Open Access journal in the field of robotics.",institutionString:null,institution:{name:"TU Wien",country:{name:"Austria"}}},{id:"441",title:"Ph.D.",name:"Jaekyu",middleName:null,surname:"Park",slug:"jaekyu-park",fullName:"Jaekyu Park",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/441/images/1881_n.jpg",biography:null,institutionString:null,institution:{name:"LG Corporation (South Korea)",country:{name:"Korea, South"}}},{id:"465",title:"Dr.",name:"Christian",middleName:null,surname:"Martens",slug:"christian-martens",fullName:"Christian Martens",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Rheinmetall (Germany)",country:{name:"Germany"}}},{id:"479",title:"Dr.",name:"Valentina",middleName:null,surname:"Colla",slug:"valentina-colla",fullName:"Valentina Colla",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/479/images/358_n.jpg",biography:null,institutionString:null,institution:{name:"Sant'Anna School of Advanced Studies",country:{name:"Italy"}}},{id:"494",title:"PhD",name:"Loris",middleName:null,surname:"Nanni",slug:"loris-nanni",fullName:"Loris Nanni",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/494/images/system/494.jpg",biography:"Loris Nanni received his Master Degree cum laude on June-2002 from the University of Bologna, and the April 26th 2006 he received his Ph.D. in Computer Engineering at DEIS, University of Bologna. On September, 29th 2006 he has won a post PhD fellowship from the university of Bologna (from October 2006 to October 2008), at the competitive examination he was ranked first in the industrial engineering area. He extensively served as referee for several international journals. He is author/coauthor of more than 100 research papers. He has been involved in some projects supported by MURST and European Community. His research interests include pattern recognition, bioinformatics, and biometric systems (fingerprint classification and recognition, signature verification, face recognition).",institutionString:null,institution:null},{id:"496",title:"Dr.",name:"Carlos",middleName:null,surname:"Leon",slug:"carlos-leon",fullName:"Carlos Leon",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Seville",country:{name:"Spain"}}},{id:"512",title:"Dr.",name:"Dayang",middleName:null,surname:"Jawawi",slug:"dayang-jawawi",fullName:"Dayang Jawawi",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Technology Malaysia",country:{name:"Malaysia"}}},{id:"528",title:"Dr.",name:"Kresimir",middleName:null,surname:"Delac",slug:"kresimir-delac",fullName:"Kresimir Delac",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/528/images/system/528.jpg",biography:"K. Delac received his B.Sc.E.E. degree in 2003 and is currentlypursuing a Ph.D. degree at the University of Zagreb, Faculty of Electrical Engineering andComputing. His current research interests are digital image analysis, pattern recognition andbiometrics.",institutionString:null,institution:{name:"University of Zagreb",country:{name:"Croatia"}}},{id:"557",title:"Dr.",name:"Andon",middleName:"Venelinov",surname:"Topalov",slug:"andon-topalov",fullName:"Andon Topalov",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/557/images/1927_n.jpg",biography:"Dr. Andon V. Topalov received the MSc degree in Control Engineering from the Faculty of Information Systems, Technologies, and Automation at Moscow State University of Civil Engineering (MGGU) in 1979. He then received his PhD degree in Control Engineering from the Department of Automation and Remote Control at Moscow State Mining University (MGSU), Moscow, in 1984. From 1985 to 1986, he was a Research Fellow in the Research Institute for Electronic Equipment, ZZU AD, Plovdiv, Bulgaria. In 1986, he joined the Department of Control Systems, Technical University of Sofia at the Plovdiv campus, where he is presently a Full Professor. He has held long-term visiting Professor/Scholar positions at various institutions in South Korea, Turkey, Mexico, Greece, Belgium, UK, and Germany. And he has coauthored one book and authored or coauthored more than 80 research papers in conference proceedings and journals. His current research interests are in the fields of intelligent control and robotics.",institutionString:null,institution:{name:"Technical University of Sofia",country:{name:"Bulgaria"}}},{id:"585",title:"Prof.",name:"Munir",middleName:null,surname:"Merdan",slug:"munir-merdan",fullName:"Munir Merdan",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/585/images/system/585.jpg",biography:"Munir Merdan received the M.Sc. degree in mechanical engineering from the Technical University of Sarajevo, Bosnia and Herzegovina, in 2001, and the Ph.D. degree in electrical engineering from the Vienna University of Technology, Vienna, Austria, in 2009.Since 2005, he has been at the Automation and Control Institute, Vienna University of Technology, where he is currently a Senior Researcher. His research interests include the application of agent technology for achieving agile control in the manufacturing environment.",institutionString:null,institution:null},{id:"605",title:"Prof",name:"Dil",middleName:null,surname:"Hussain",slug:"dil-hussain",fullName:"Dil Hussain",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/605/images/system/605.jpg",biography:"Dr. Dil Muhammad Akbar Hussain is a professor of Electronics Engineering & Computer Science at the Department of Energy Technology, Aalborg University Denmark. Professor Akbar has a Master degree in Digital Electronics from Govt. College University, Lahore Pakistan and a P-hD degree in Control Engineering from the School of Engineering and Applied Sciences, University of Sussex United Kingdom. Aalborg University has Two Satellite Campuses, one in Copenhagen (Aalborg University Copenhagen) and the other in Esbjerg (Aalborg University Esbjerg).\n· He is a member of prestigious IEEE (Institute of Electrical and Electronics Engineers), and IAENG (International Association of Engineers) organizations. \n· He is the chief Editor of the Journal of Software Engineering.\n· He is the member of the Editorial Board of International Journal of Computer Science and Software Technology (IJCSST) and International Journal of Computer Engineering and Information Technology. \n· He is also the Editor of Communication in Computer and Information Science CCIS-20 by Springer.\n· Reviewer For Many Conferences\nHe is the lead person in making collaboration agreements between Aalborg University and many universities of Pakistan, for which the MOU’s (Memorandum of Understanding) have been signed.\nProfessor Akbar is working in Academia since 1990, he started his career as a Lab demonstrator/TA at the University of Sussex. After finishing his P. hD degree in 1992, he served in the Industry as a Scientific Officer and continued his academic career as a visiting scholar for a number of educational institutions. In 1996 he joined National University of Science & Technology Pakistan (NUST) as an Associate Professor; NUST is one of the top few universities in Pakistan. In 1999 he joined an International Company Lineo Inc, Canada as Manager Compiler Group, where he headed the group for developing Compiler Tool Chain and Porting of Operating Systems for the BLACKfin processor. The processor development was a joint venture by Intel and Analog Devices. In 2002 Lineo Inc., was taken over by another company, so he joined Aalborg University Denmark as an Assistant Professor.\nProfessor Akbar has truly a multi-disciplined career and he continued his legacy and making progress in many areas of his interests both in teaching and research. He has contributed in stochastic estimation of control area especially, in the Multiple Target Tracking and Interactive Multiple Model (IMM) research, Ball & Beam Control Problem, Robotics, Levitation Control. He has contributed in developing Algorithms for Fingerprint Matching, Computer Vision and Face Recognition. He has been supervising Pattern Recognition, Formal Languages and Distributed Processing projects for several years. He has reviewed many books on Management, Computer Science. Currently, he is an active and permanent reviewer for many international conferences and symposia and the program committee member for many international conferences.\nIn teaching he has taught the core computer science subjects like, Digital Design, Real Time Embedded System Programming, Operating Systems, Software Engineering, Data Structures, Databases, Compiler Construction. In the Engineering side, Digital Signal Processing, Computer Architecture, Electronics Devices, Digital Filtering and Engineering Management.\nApart from his Academic Interest and activities he loves sport especially, Cricket, Football, Snooker and Squash. He plays cricket for Esbjerg city in the second division team as an opener wicket keeper batsman. He is a very good player of squash but has not played squash since his arrival in Denmark.",institutionString:null,institution:null},{id:"611",title:"Prof.",name:"T",middleName:null,surname:"Nagarajan",slug:"t-nagarajan",fullName:"T Nagarajan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Universiti Teknologi Petronas",country:{name:"Malaysia"}}}],filtersByRegion:[{group:"region",caption:"North America",value:1,count:13389},{group:"region",caption:"Middle and South America",value:2,count:11662},{group:"region",caption:"Africa",value:3,count:4168},{group:"region",caption:"Asia",value:4,count:22333},{group:"region",caption:"Australia and Oceania",value:5,count:2019},{group:"region",caption:"Europe",value:6,count:33644}],offset:12,limit:12,total:135278},chapterEmbeded:{data:{}},editorApplication:{success:null,errors:{}},ofsBooks:{filterParams:{topicId:"11"},books:[{type:"book",id:"11452",title:"Cryopreservation - Applications and Challenges",subtitle:null,isOpenForSubmission:!0,hash:"a6c3fd4384ff7deeab32fc82722c60e0",slug:null,bookSignature:"Dr. Marian Quain",coverURL:"https://cdn.intechopen.com/books/images_new/11452.jpg",editedByType:null,editors:[{id:"300385",title:"Dr.",name:"Marian",surname:"Quain",slug:"marian-quain",fullName:"Marian Quain"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11513",title:"Gas Sensors",subtitle:null,isOpenForSubmission:!0,hash:"8eeb7ab232fa8d5c723b61e0da251857",slug:null,bookSignature:"Dr. Soumen Dhara and Dr. Gorachand Dutta",coverURL:"https://cdn.intechopen.com/books/images_new/11513.jpg",editedByType:null,editors:[{id:"196334",title:"Dr.",name:"Soumen",surname:"Dhara",slug:"soumen-dhara",fullName:"Soumen Dhara"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11514",title:"Vision Sensors - Recent Advances",subtitle:null,isOpenForSubmission:!0,hash:"6da8427ef3062c142b4e9650a5fed534",slug:null,bookSignature:"Dr. Francisco J. Gallegos-Funes",coverURL:"https://cdn.intechopen.com/books/images_new/11514.jpg",editedByType:null,editors:[{id:"2868",title:"Dr.",name:"Francisco",surname:"Gallegos-Funes",slug:"francisco-gallegos-funes",fullName:"Francisco Gallegos-Funes"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11520",title:"Direct Torque Control",subtitle:null,isOpenForSubmission:!0,hash:"6504dee75dbbfd7792308293a8f1a27f",slug:null,bookSignature:"Prof. Moulay Tahar Lamchich",coverURL:"https://cdn.intechopen.com/books/images_new/11520.jpg",editedByType:null,editors:[{id:"21932",title:"Prof.",name:"Moulay Tahar",surname:"Lamchich",slug:"moulay-tahar-lamchich",fullName:"Moulay Tahar Lamchich"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11526",title:"Mass Production in the Industry 4.0 Era",subtitle:null,isOpenForSubmission:!0,hash:"082678c3d4e60a3ac282f3f2309379d4",slug:null,bookSignature:"Dr. Tamás Bányai",coverURL:"https://cdn.intechopen.com/books/images_new/11526.jpg",editedByType:null,editors:[{id:"201248",title:"Dr.",name:"Tamás",surname:"Bányai",slug:"tamas-banyai",fullName:"Tamás Bányai"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11538",title:"Updates on Supercapacitors",subtitle:null,isOpenForSubmission:!0,hash:"defe620d92b00d7a1b12b939941b7528",slug:null,bookSignature:"Dr. Zoran M. Stevic",coverURL:"https://cdn.intechopen.com/books/images_new/11538.jpg",editedByType:null,editors:[{id:"30692",title:"Dr.",name:"Zoran",surname:"Stevic",slug:"zoran-stevic",fullName:"Zoran Stevic"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11539",title:"Thermal Power Plants - Modeling, Control, and Optimization",subtitle:null,isOpenForSubmission:!0,hash:"1c3acd9b5f01439c18515d73d41b830d",slug:null,bookSignature:"Dr. Paweł Madejski",coverURL:"https://cdn.intechopen.com/books/images_new/11539.jpg",editedByType:null,editors:[{id:"179645",title:"Dr.",name:"Paweł",surname:"Madejski",slug:"pawel-madejski",fullName:"Paweł Madejski"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11543",title:"Energy Consumption, Conversion, Storage, and Efficiency",subtitle:null,isOpenForSubmission:!0,hash:"ad63fe95611354246fb73cb3653b6348",slug:null,bookSignature:"Prof. Jiajun Xu and Prof. Bao Yang",coverURL:"https://cdn.intechopen.com/books/images_new/11543.jpg",editedByType:null,editors:[{id:"233386",title:"Prof.",name:"Jiajun",surname:"Xu",slug:"jiajun-xu",fullName:"Jiajun Xu"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11546",title:"Smart and Sustainable Transportation",subtitle:null,isOpenForSubmission:!0,hash:"88ccbca0fb32b8f905e4307bfe485862",slug:null,bookSignature:"Dr. Arshad Jamal",coverURL:"https://cdn.intechopen.com/books/images_new/11546.jpg",editedByType:null,editors:[{id:"339925",title:"Dr.",name:"Arshad",surname:"Jamal",slug:"arshad-jamal",fullName:"Arshad Jamal"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11927",title:"Advances in Slope Engineering",subtitle:null,isOpenForSubmission:!0,hash:"8f99ec47c5d5c034e72f0db4cbede70c",slug:null,bookSignature:"Associate Prof. Resat Oyguc",coverURL:"https://cdn.intechopen.com/books/images_new/11927.jpg",editedByType:null,editors:[{id:"239239",title:"Associate Prof.",name:"Resat",surname:"Oyguc",slug:"resat-oyguc",fullName:"Resat Oyguc"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11928",title:"Pipeline Engineering",subtitle:null,isOpenForSubmission:!0,hash:"a01da9c63fd3825818d1215bd7c283ff",slug:null,bookSignature:"Dr. Sayeed Rushd, Dr. Mohamed Ismail and Dr. Kofi Freeman Adane",coverURL:"https://cdn.intechopen.com/books/images_new/11928.jpg",editedByType:null,editors:[{id:"267670",title:"Dr.",name:"Sayeed",surname:"Rushd",slug:"sayeed-rushd",fullName:"Sayeed Rushd"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11930",title:"Reliability-Based Design in Structure and Geotechnical Engineering",subtitle:null,isOpenForSubmission:!0,hash:"63cb9ce2478d12b0649b47deaab8ab56",slug:null,bookSignature:"Dr. Faham Tahmasebinia",coverURL:"https://cdn.intechopen.com/books/images_new/11930.jpg",editedByType:null,editors:[{id:"211659",title:"Dr.",name:"Faham",surname:"Tahmasebinia",slug:"faham-tahmasebinia",fullName:"Faham Tahmasebinia"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],filtersByTopic:[{group:"topic",caption:"Agricultural and Biological Sciences",value:5,count:22},{group:"topic",caption:"Biochemistry, Genetics and Molecular Biology",value:6,count:6},{group:"topic",caption:"Business, Management and Economics",value:7,count:4},{group:"topic",caption:"Chemistry",value:8,count:15},{group:"topic",caption:"Computer and Information Science",value:9,count:18},{group:"topic",caption:"Earth and Planetary Sciences",value:10,count:8},{group:"topic",caption:"Engineering",value:11,count:37},{group:"topic",caption:"Environmental Sciences",value:12,count:5},{group:"topic",caption:"Immunology and Microbiology",value:13,count:8},{group:"topic",caption:"Materials Science",value:14,count:15},{group:"topic",caption:"Mathematics",value:15,count:8},{group:"topic",caption:"Medicine",value:16,count:62},{group:"topic",caption:"Nanotechnology and Nanomaterials",value:17,count:2},{group:"topic",caption:"Neuroscience",value:18,count:2},{group:"topic",caption:"Pharmacology, Toxicology and Pharmaceutical Science",value:19,count:7},{group:"topic",caption:"Physics",value:20,count:5},{group:"topic",caption:"Psychology",value:21,count:5},{group:"topic",caption:"Robotics",value:22,count:2},{group:"topic",caption:"Social Sciences",value:23,count:8},{group:"topic",caption:"Veterinary Medicine and Science",value:25,count:2}],offset:12,limit:12,total:55},popularBooks:{featuredBooks:[{type:"book",id:"7827",title:"Interpersonal Relationships",subtitle:null,isOpenForSubmission:!1,hash:"ebf41f4d17c75010eb3294cc8cac3d47",slug:"interpersonal-relationships",bookSignature:"Martha Peaslee Levine",coverURL:"https://cdn.intechopen.com/books/images_new/7827.jpg",editors:[{id:"186919",title:"Dr.",name:"Martha",middleName:null,surname:"Peaslee Levine",slug:"martha-peaslee-levine",fullName:"Martha Peaslee Levine"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10808",title:"Current Concepts in Dental Implantology",subtitle:"From Science to Clinical Research",isOpenForSubmission:!1,hash:"4af8830e463f89c57515c2da2b9777b0",slug:"current-concepts-in-dental-implantology-from-science-to-clinical-research",bookSignature:"Dragana Gabrić and Marko Vuletić",coverURL:"https://cdn.intechopen.com/books/images_new/10808.jpg",editors:[{id:"26946",title:"Prof.",name:"Dragana",middleName:null,surname:"Gabrić",slug:"dragana-gabric",fullName:"Dragana Gabrić"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10796",title:"Extracellular Vesicles",subtitle:"Role in Diseases, Pathogenesis and Therapy",isOpenForSubmission:!1,hash:"eb5407fcf93baff7bca3fae5640153a2",slug:"extracellular-vesicles-role-in-diseases-pathogenesis-and-therapy",bookSignature:"Manash K. Paul",coverURL:"https://cdn.intechopen.com/books/images_new/10796.jpg",editors:[{id:"319365",title:"Assistant Prof.",name:"Manash K.",middleName:null,surname:"Paul",slug:"manash-k.-paul",fullName:"Manash K. Paul"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10908",title:"Advances in Decision Making",subtitle:null,isOpenForSubmission:!1,hash:"126486f7f91e18e2e3539a32c38be7b1",slug:"advances-in-decision-making",bookSignature:"Fausto Pedro García Márquez",coverURL:"https://cdn.intechopen.com/books/images_new/10908.jpg",editors:[{id:"22844",title:"Prof.",name:"Fausto Pedro",middleName:null,surname:"García Márquez",slug:"fausto-pedro-garcia-marquez",fullName:"Fausto Pedro García Márquez"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"95",title:"Applications and Experiences of Quality Control",subtitle:null,isOpenForSubmission:!1,hash:"4bcb22b1eee68210a977a97d5a0f363a",slug:"applications-and-experiences-of-quality-control",bookSignature:"Ognyan Ivanov",coverURL:"https://cdn.intechopen.com/books/images_new/95.jpg",editors:[{id:"22230",title:"Prof.",name:"Ognyan",middleName:null,surname:"Ivanov",slug:"ognyan-ivanov",fullName:"Ognyan Ivanov"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"2160",title:"MATLAB",subtitle:"A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 1",isOpenForSubmission:!1,hash:"dd9c658341fbd264ed4f8d9e6aa8ca29",slug:"matlab-a-fundamental-tool-for-scientific-computing-and-engineering-applications-volume-1",bookSignature:"Vasilios N. Katsikis",coverURL:"https://cdn.intechopen.com/books/images_new/2160.jpg",editors:[{id:"12289",title:"Prof.",name:"Vasilios",middleName:"N.",surname:"Katsikis",slug:"vasilios-katsikis",fullName:"Vasilios Katsikis"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"3560",title:"Advances in Landscape Architecture",subtitle:null,isOpenForSubmission:!1,hash:"a20614517ec5f7e91188fe8e42832138",slug:"advances-in-landscape-architecture",bookSignature:"Murat Özyavuz",coverURL:"https://cdn.intechopen.com/books/images_new/3560.jpg",editors:[{id:"93073",title:"Dr.",name:"Murat",middleName:null,surname:"Ozyavuz",slug:"murat-ozyavuz",fullName:"Murat Ozyavuz"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10739",title:"Global Decline of Insects",subtitle:null,isOpenForSubmission:!1,hash:"543783652b9092962a8fa4bed38eeb17",slug:"global-decline-of-insects",bookSignature:"Hamadttu Abdel Farag El-Shafie",coverURL:"https://cdn.intechopen.com/books/images_new/10739.jpg",editors:[{id:"192142",title:"Dr.",name:"Hamadttu",middleName:null,surname:"Abdel Farag El-Shafie",slug:"hamadttu-abdel-farag-el-shafie",fullName:"Hamadttu Abdel Farag El-Shafie"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10911",title:"Higher Education",subtitle:"New Approaches to Accreditation, Digitalization, and Globalization in the Age of Covid",isOpenForSubmission:!1,hash:"223a02337498e535e967174c1f648fbc",slug:"higher-education-new-approaches-to-accreditation-digitalization-and-globalization-in-the-age-of-covid",bookSignature:"Lee Waller and Sharon Waller",coverURL:"https://cdn.intechopen.com/books/images_new/10911.jpg",editors:[{id:"263301",title:"Dr.",name:"Lee",middleName:null,surname:"Waller",slug:"lee-waller",fullName:"Lee Waller"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"3568",title:"Recent Advances in Plant in vitro Culture",subtitle:null,isOpenForSubmission:!1,hash:"830bbb601742c85a3fb0eeafe1454c43",slug:"recent-advances-in-plant-in-vitro-culture",bookSignature:"Annarita Leva and Laura M. R. Rinaldi",coverURL:"https://cdn.intechopen.com/books/images_new/3568.jpg",editors:[{id:"142145",title:"Dr.",name:"Annarita",middleName:null,surname:"Leva",slug:"annarita-leva",fullName:"Annarita Leva"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"3737",title:"MATLAB",subtitle:"Modelling, Programming and Simulations",isOpenForSubmission:!1,hash:null,slug:"matlab-modelling-programming-and-simulations",bookSignature:"Emilson Pereira Leite",coverURL:"https://cdn.intechopen.com/books/images_new/3737.jpg",editors:[{id:"12051",title:"Prof.",name:"Emilson",middleName:null,surname:"Pereira Leite",slug:"emilson-pereira-leite",fullName:"Emilson Pereira Leite"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"1770",title:"Gel Electrophoresis",subtitle:"Principles and Basics",isOpenForSubmission:!1,hash:"279701f6c802cf02deef45103e0611ff",slug:"gel-electrophoresis-principles-and-basics",bookSignature:"Sameh Magdeldin",coverURL:"https://cdn.intechopen.com/books/images_new/1770.jpg",editors:[{id:"123648",title:"Dr.",name:"Sameh",middleName:null,surname:"Magdeldin",slug:"sameh-magdeldin",fullName:"Sameh Magdeldin"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],offset:12,limit:12,total:4797},hotBookTopics:{hotBooks:[],offset:0,limit:12,total:null},publish:{},publishingProposal:{success:null,errors:{}},books:{featuredBooks:[{type:"book",id:"7827",title:"Interpersonal Relationships",subtitle:null,isOpenForSubmission:!1,hash:"ebf41f4d17c75010eb3294cc8cac3d47",slug:"interpersonal-relationships",bookSignature:"Martha Peaslee Levine",coverURL:"https://cdn.intechopen.com/books/images_new/7827.jpg",publishedDate:"July 27th 2022",numberOfDownloads:7175,editors:[{id:"186919",title:"Dr.",name:"Martha",middleName:null,surname:"Peaslee Levine",slug:"martha-peaslee-levine",fullName:"Martha Peaslee Levine"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10808",title:"Current Concepts in Dental Implantology",subtitle:"From Science to Clinical Research",isOpenForSubmission:!1,hash:"4af8830e463f89c57515c2da2b9777b0",slug:"current-concepts-in-dental-implantology-from-science-to-clinical-research",bookSignature:"Dragana Gabrić and Marko Vuletić",coverURL:"https://cdn.intechopen.com/books/images_new/10808.jpg",publishedDate:"July 27th 2022",numberOfDownloads:1981,editors:[{id:"26946",title:"Prof.",name:"Dragana",middleName:null,surname:"Gabrić",slug:"dragana-gabric",fullName:"Dragana Gabrić"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10796",title:"Extracellular Vesicles",subtitle:"Role in Diseases, Pathogenesis and Therapy",isOpenForSubmission:!1,hash:"eb5407fcf93baff7bca3fae5640153a2",slug:"extracellular-vesicles-role-in-diseases-pathogenesis-and-therapy",bookSignature:"Manash K. Paul",coverURL:"https://cdn.intechopen.com/books/images_new/10796.jpg",publishedDate:"July 20th 2022",numberOfDownloads:2308,editors:[{id:"319365",title:"Assistant Prof.",name:"Manash K.",middleName:null,surname:"Paul",slug:"manash-k.-paul",fullName:"Manash K. Paul"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10908",title:"Advances in Decision Making",subtitle:null,isOpenForSubmission:!1,hash:"126486f7f91e18e2e3539a32c38be7b1",slug:"advances-in-decision-making",bookSignature:"Fausto Pedro García Márquez",coverURL:"https://cdn.intechopen.com/books/images_new/10908.jpg",publishedDate:"July 27th 2022",numberOfDownloads:1473,editors:[{id:"22844",title:"Prof.",name:"Fausto Pedro",middleName:null,surname:"García Márquez",slug:"fausto-pedro-garcia-marquez",fullName:"Fausto Pedro García Márquez"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"95",title:"Applications and Experiences of Quality Control",subtitle:null,isOpenForSubmission:!1,hash:"4bcb22b1eee68210a977a97d5a0f363a",slug:"applications-and-experiences-of-quality-control",bookSignature:"Ognyan Ivanov",coverURL:"https://cdn.intechopen.com/books/images_new/95.jpg",publishedDate:"April 26th 2011",numberOfDownloads:318571,editors:[{id:"22230",title:"Prof.",name:"Ognyan",middleName:null,surname:"Ivanov",slug:"ognyan-ivanov",fullName:"Ognyan Ivanov"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"2160",title:"MATLAB",subtitle:"A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 1",isOpenForSubmission:!1,hash:"dd9c658341fbd264ed4f8d9e6aa8ca29",slug:"matlab-a-fundamental-tool-for-scientific-computing-and-engineering-applications-volume-1",bookSignature:"Vasilios N. Katsikis",coverURL:"https://cdn.intechopen.com/books/images_new/2160.jpg",publishedDate:"September 26th 2012",numberOfDownloads:271836,editors:[{id:"12289",title:"Prof.",name:"Vasilios",middleName:"N.",surname:"Katsikis",slug:"vasilios-katsikis",fullName:"Vasilios Katsikis"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"3560",title:"Advances in Landscape Architecture",subtitle:null,isOpenForSubmission:!1,hash:"a20614517ec5f7e91188fe8e42832138",slug:"advances-in-landscape-architecture",bookSignature:"Murat Özyavuz",coverURL:"https://cdn.intechopen.com/books/images_new/3560.jpg",publishedDate:"July 1st 2013",numberOfDownloads:243450,editors:[{id:"93073",title:"Dr.",name:"Murat",middleName:null,surname:"Ozyavuz",slug:"murat-ozyavuz",fullName:"Murat Ozyavuz"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10739",title:"Global Decline of Insects",subtitle:null,isOpenForSubmission:!1,hash:"543783652b9092962a8fa4bed38eeb17",slug:"global-decline-of-insects",bookSignature:"Hamadttu Abdel Farag El-Shafie",coverURL:"https://cdn.intechopen.com/books/images_new/10739.jpg",publishedDate:"July 20th 2022",numberOfDownloads:1582,editors:[{id:"192142",title:"Dr.",name:"Hamadttu",middleName:null,surname:"Abdel Farag El-Shafie",slug:"hamadttu-abdel-farag-el-shafie",fullName:"Hamadttu Abdel Farag El-Shafie"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10911",title:"Higher Education",subtitle:"New Approaches to Accreditation, Digitalization, and Globalization in the Age of Covid",isOpenForSubmission:!1,hash:"223a02337498e535e967174c1f648fbc",slug:"higher-education-new-approaches-to-accreditation-digitalization-and-globalization-in-the-age-of-covid",bookSignature:"Lee Waller and Sharon Waller",coverURL:"https://cdn.intechopen.com/books/images_new/10911.jpg",publishedDate:"July 13th 2022",numberOfDownloads:2082,editors:[{id:"263301",title:"Dr.",name:"Lee",middleName:null,surname:"Waller",slug:"lee-waller",fullName:"Lee Waller"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"3568",title:"Recent Advances in Plant in vitro Culture",subtitle:null,isOpenForSubmission:!1,hash:"830bbb601742c85a3fb0eeafe1454c43",slug:"recent-advances-in-plant-in-vitro-culture",bookSignature:"Annarita Leva and Laura M. R. Rinaldi",coverURL:"https://cdn.intechopen.com/books/images_new/3568.jpg",publishedDate:"October 17th 2012",numberOfDownloads:256294,editors:[{id:"142145",title:"Dr.",name:"Annarita",middleName:null,surname:"Leva",slug:"annarita-leva",fullName:"Annarita Leva"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],latestBooks:[{type:"book",id:"10808",title:"Current Concepts in Dental Implantology",subtitle:"From Science to Clinical Research",isOpenForSubmission:!1,hash:"4af8830e463f89c57515c2da2b9777b0",slug:"current-concepts-in-dental-implantology-from-science-to-clinical-research",bookSignature:"Dragana Gabrić and Marko Vuletić",coverURL:"https://cdn.intechopen.com/books/images_new/10808.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"26946",title:"Prof.",name:"Dragana",middleName:null,surname:"Gabrić",slug:"dragana-gabric",fullName:"Dragana Gabrić"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11328",title:"Botulinum Toxin",subtitle:"Recent Topics and Applications",isOpenForSubmission:!1,hash:"7dd05a316001cef143e209eda51387a7",slug:"botulinum-toxin-recent-topics-and-applications",bookSignature:"Suna Sabuncuoglu",coverURL:"https://cdn.intechopen.com/books/images_new/11328.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"270856",title:"Associate Prof.",name:"Suna",middleName:null,surname:"Sabuncuoglu",slug:"suna-sabuncuoglu",fullName:"Suna Sabuncuoglu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11085",title:"Polycystic Ovary Syndrome",subtitle:"Functional Investigation and Clinical Application",isOpenForSubmission:!1,hash:"3066dd3ff29e1fac072fd60b08d4d3e7",slug:"polycystic-ovary-syndrome-functional-investigation-and-clinical-application",bookSignature:"Zhengchao Wang",coverURL:"https://cdn.intechopen.com/books/images_new/11085.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"204883",title:"Dr.",name:"Zhengchao",middleName:null,surname:"Wang",slug:"zhengchao-wang",fullName:"Zhengchao Wang"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10833",title:"Tumor Angiogenesis and Modulators",subtitle:null,isOpenForSubmission:!1,hash:"f29b575c46128b2da061ef7f9bd1070b",slug:"tumor-angiogenesis-and-modulators",bookSignature:"Ke Xu",coverURL:"https://cdn.intechopen.com/books/images_new/10833.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"59529",title:"Dr.",name:"Ke",middleName:null,surname:"Xu",slug:"ke-xu",fullName:"Ke Xu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11356",title:"Molecular Cloning",subtitle:null,isOpenForSubmission:!1,hash:"671c629dd86e97f0fb467b9e70e92296",slug:"molecular-cloning",bookSignature:"Sadık Dincer, Hatice Aysun Mercimek Takcı and Melis Sumengen Ozdenef",coverURL:"https://cdn.intechopen.com/books/images_new/11356.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"188141",title:"Prof.",name:"Sadik",middleName:null,surname:"Dincer",slug:"sadik-dincer",fullName:"Sadik Dincer"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"7827",title:"Interpersonal Relationships",subtitle:null,isOpenForSubmission:!1,hash:"ebf41f4d17c75010eb3294cc8cac3d47",slug:"interpersonal-relationships",bookSignature:"Martha Peaslee Levine",coverURL:"https://cdn.intechopen.com/books/images_new/7827.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"186919",title:"Dr.",name:"Martha",middleName:null,surname:"Peaslee Levine",slug:"martha-peaslee-levine",fullName:"Martha Peaslee Levine"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10908",title:"Advances in Decision Making",subtitle:null,isOpenForSubmission:!1,hash:"126486f7f91e18e2e3539a32c38be7b1",slug:"advances-in-decision-making",bookSignature:"Fausto Pedro García Márquez",coverURL:"https://cdn.intechopen.com/books/images_new/10908.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"22844",title:"Prof.",name:"Fausto Pedro",middleName:null,surname:"García Márquez",slug:"fausto-pedro-garcia-marquez",fullName:"Fausto Pedro García Márquez"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10669",title:"Corrosion",subtitle:"Fundamentals and Protection Mechanisms",isOpenForSubmission:!1,hash:"4a76d54f8a40fc2e7002a8d13fd617c1",slug:"corrosion-fundamentals-and-protection-mechanisms",bookSignature:"Fahmina Zafar, Anujit Ghosal and Eram Sharmin",coverURL:"https://cdn.intechopen.com/books/images_new/10669.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"89672",title:"Dr.",name:"Fahmina",middleName:null,surname:"Zafar",slug:"fahmina-zafar",fullName:"Fahmina Zafar"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10677",title:"Advanced Topics of Topology",subtitle:null,isOpenForSubmission:!1,hash:"bf964c52f9e653fac20a7fcab58070e5",slug:"advanced-topics-of-topology",bookSignature:"Francisco Bulnes",coverURL:"https://cdn.intechopen.com/books/images_new/10677.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"92918",title:"Dr.",name:"Francisco",middleName:null,surname:"Bulnes",slug:"francisco-bulnes",fullName:"Francisco Bulnes"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11195",title:"Recent Advances in Biometrics",subtitle:null,isOpenForSubmission:!1,hash:"2d32e33e0f499cb5241734bb75dd2a83",slug:"recent-advances-in-biometrics",bookSignature:"Muhammad Sarfraz",coverURL:"https://cdn.intechopen.com/books/images_new/11195.jpg",editedByType:"Edited by",publishedDate:"July 27th 2022",editors:[{id:"215610",title:"Prof.",name:"Muhammad",middleName:null,surname:"Sarfraz",slug:"muhammad-sarfraz",fullName:"Muhammad Sarfraz"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},subject:{topic:{id:"81",title:"Analytical Chemistry",slug:"chemistry-analytical-chemistry",parent:{id:"8",title:"Chemistry",slug:"chemistry"},numberOfBooks:36,numberOfSeries:0,numberOfAuthorsAndEditors:819,numberOfWosCitations:1350,numberOfCrossrefCitations:636,numberOfDimensionsCitations:1732,videoUrl:null,fallbackUrl:null,description:null},booksByTopicFilter:{topicId:"81",sort:"-publishedDate",limit:12,offset:0},booksByTopicCollection:[{type:"book",id:"10696",title:"Applications of Calorimetry",subtitle:null,isOpenForSubmission:!1,hash:"8c87f7e2199db33b5dd7181f56973a97",slug:"applications-of-calorimetry",bookSignature:"José Luis Rivera-Armenta and Cynthia Graciela Flores-Hernández",coverURL:"https://cdn.intechopen.com/books/images_new/10696.jpg",editedByType:"Edited by",editors:[{id:"107855",title:"Dr.",name:"Jose Luis",middleName:null,surname:"Rivera Armenta",slug:"jose-luis-rivera-armenta",fullName:"Jose Luis Rivera Armenta"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9937",title:"Recent Advances in Gas Chromatography",subtitle:null,isOpenForSubmission:!1,hash:"2d37a39be8412d39e729669c9c73ebb8",slug:"recent-advances-in-gas-chromatography",bookSignature:"Fabrice Mutelet",coverURL:"https://cdn.intechopen.com/books/images_new/9937.jpg",editedByType:"Edited by",editors:[{id:"186677",title:"Dr.",name:"Fabrice",middleName:null,surname:"Mutelet",slug:"fabrice-mutelet",fullName:"Fabrice Mutelet"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11072",title:"Sample Preparation Techniques for Chemical Analysis",subtitle:null,isOpenForSubmission:!1,hash:"38fecf7570774c29c22a0cbca58ba570",slug:"sample-preparation-techniques-for-chemical-analysis",bookSignature:"Massoud Kaykhaii",coverURL:"https://cdn.intechopen.com/books/images_new/11072.jpg",editedByType:"Edited by",editors:[{id:"349151",title:"Prof.",name:"Massoud",middleName:null,surname:"Kaykhaii",slug:"massoud-kaykhaii",fullName:"Massoud Kaykhaii"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9932",title:"Analytical Chemistry",subtitle:"Advancement, Perspectives and Applications",isOpenForSubmission:!1,hash:"18f54a89cdbbafde70f56e55e122171a",slug:"analytical-chemistry-advancement-perspectives-and-applications",bookSignature:"Abhay Nanda Srivastva",coverURL:"https://cdn.intechopen.com/books/images_new/9932.jpg",editedByType:"Edited by",editors:[{id:"293623",title:"Dr.",name:"Abhay Nanda",middleName:null,surname:"Srivastva",slug:"abhay-nanda-srivastva",fullName:"Abhay Nanda Srivastva"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10387",title:"Mass Spectrometry in Life Sciences and Clinical Laboratory",subtitle:null,isOpenForSubmission:!1,hash:"5f2fa81e1939bbe34ac689fb983ca4c1",slug:"mass-spectrometry-in-life-sciences-and-clinical-laboratory",bookSignature:"Goran Mitulović",coverURL:"https://cdn.intechopen.com/books/images_new/10387.jpg",editedByType:"Edited by",editors:[{id:"212804",title:"Dr.",name:"Goran",middleName:null,surname:"Mitulović",slug:"goran-mitulovic",fullName:"Goran Mitulović"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"7319",title:"Color Detection",subtitle:null,isOpenForSubmission:!1,hash:"6c3c446db0a120cfd1f2697760e7d784",slug:"color-detection",bookSignature:"Ling-Wen Zeng and Shi-Lin Cao",coverURL:"https://cdn.intechopen.com/books/images_new/7319.jpg",editedByType:"Edited by",editors:[{id:"173972",title:"Dr.",name:"Lingwen",middleName:null,surname:"Zeng",slug:"lingwen-zeng",fullName:"Lingwen Zeng"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8380",title:"Mass Spectrometry",subtitle:"Future Perceptions and Applications",isOpenForSubmission:!1,hash:"662bbebeab1942b6710f413e2b217004",slug:"mass-spectrometry-future-perceptions-and-applications",bookSignature:"Ganesh Shamrao Kamble",coverURL:"https://cdn.intechopen.com/books/images_new/8380.jpg",editedByType:"Edited by",editors:[{id:"236420",title:"Dr.",name:"Ganesh",middleName:"Shamrao",surname:"Kamble",slug:"ganesh-kamble",fullName:"Ganesh Kamble"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"6831",title:"Gas Chromatography",subtitle:"Derivatization, Sample Preparation, Application",isOpenForSubmission:!1,hash:"b9ef7d64ef66b65cb3245157db815577",slug:"gas-chromatography-derivatization-sample-preparation-application",bookSignature:"Peter Kusch",coverURL:"https://cdn.intechopen.com/books/images_new/6831.jpg",editedByType:"Edited by",editors:[{id:"254714",title:"Dr.",name:"Peter",middleName:null,surname:"Kusch",slug:"peter-kusch",fullName:"Peter Kusch"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"7348",title:"Voltammetry",subtitle:null,isOpenForSubmission:!1,hash:"27acad9579f166df001d24b28c720e55",slug:"voltammetry",bookSignature:"Nobanathi Wendy Maxakato, Sandile Surprise Gwebu and Gugu Hlengiwe Mhlongo",coverURL:"https://cdn.intechopen.com/books/images_new/7348.jpg",editedByType:"Edited by",editors:[{id:"259515",title:"Dr.",name:"Nobanathi Wendy",middleName:null,surname:"Maxakato",slug:"nobanathi-wendy-maxakato",fullName:"Nobanathi Wendy Maxakato"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8637",title:"Recent Advances in Analytical Chemistry",subtitle:null,isOpenForSubmission:!1,hash:"9d61b693f14e24d81342f6c36fc5ba32",slug:"recent-advances-in-analytical-chemistry",bookSignature:"Muharrem Ince and Olcay Kaplan Ince",coverURL:"https://cdn.intechopen.com/books/images_new/8637.jpg",editedByType:"Edited by",editors:[{id:"258431",title:"Prof.",name:"Muharrem",middleName:null,surname:"Ince",slug:"muharrem-ince",fullName:"Muharrem Ince"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"6697",title:"Chemometrics and Data Analysis in Chromatography",subtitle:null,isOpenForSubmission:!1,hash:"513cf51c1f8851d3a5fde73daa281571",slug:"chemometrics-and-data-analysis-in-chromatography",bookSignature:"Vu Dang Hoang",coverURL:"https://cdn.intechopen.com/books/images_new/6697.jpg",editedByType:"Edited by",editors:[{id:"199907",title:"Associate Prof.",name:"Vu Dang",middleName:null,surname:"Hoang",slug:"vu-dang-hoang",fullName:"Vu Dang Hoang"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"7488",title:"Analytical Pyrolysis",subtitle:null,isOpenForSubmission:!1,hash:"30a667792c3a70b53d30fb6e9e1e7b4d",slug:"analytical-pyrolysis",bookSignature:"Peter Kusch",coverURL:"https://cdn.intechopen.com/books/images_new/7488.jpg",editedByType:"Edited by",editors:[{id:"254714",title:"Dr.",name:"Peter",middleName:null,surname:"Kusch",slug:"peter-kusch",fullName:"Peter Kusch"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],booksByTopicTotal:36,seriesByTopicCollection:[],seriesByTopicTotal:0,mostCitedChapters:[{id:"32817",doi:"10.5772/33098",title:"Derivatization Reactions and Reagents for Gas Chromatography Analysis",slug:"derivatization-reactions-and-reagents-for-gas-chromatography-analysis",totalDownloads:70672,totalCrossrefCites:38,totalDimensionsCites:102,abstract:null,book:{id:"2114",slug:"advanced-gas-chromatography-progress-in-agricultural-biomedical-and-industrial-applications",title:"Advanced Gas Chromatography",fullTitle:"Advanced Gas Chromatography - Progress in Agricultural, Biomedical and Industrial Applications"},signatures:"Francis Orata",authors:[{id:"94007",title:"Dr.",name:"Francis",middleName:null,surname:"Orata",slug:"francis-orata",fullName:"Francis Orata"}]},{id:"26356",doi:"10.5772/33411",title:"Drift Correction Methods for Gas Chemical Sensors in Artificial Olfaction Systems: Techniques and Challenges",slug:"drift-correction-methods-for-gas-chemical-sensors-in-artificial-olfaction-systems-techniques-and-cha",totalDownloads:4662,totalCrossrefCites:8,totalDimensionsCites:57,abstract:null,book:{id:"589",slug:"advances-in-chemical-sensors",title:"Advances in Chemical Sensors",fullTitle:"Advances in Chemical Sensors"},signatures:"S. Di Carlo and M. Falasconi",authors:[{id:"50412",title:"Prof.",name:"Stefano",middleName:null,surname:"Di Carlo",slug:"stefano-di-carlo",fullName:"Stefano Di Carlo"},{id:"95331",title:"Dr.",name:"Matteo",middleName:null,surname:"Falasconi",slug:"matteo-falasconi",fullName:"Matteo Falasconi"}]},{id:"29012",doi:"10.5772/32108",title:"Identifying and Overcoming Matrix Effects in Drug Discovery and Development",slug:"identifying-and-overcoming-matrix-effects-in-drug-discovery-and-development",totalDownloads:18700,totalCrossrefCites:7,totalDimensionsCites:47,abstract:null,book:{id:"818",slug:"tandem-mass-spectrometry-applications-and-principles",title:"Tandem Mass Spectrometry",fullTitle:"Tandem Mass Spectrometry - Applications and Principles"},signatures:"Terence G. Hall, Inese Smukste, Karen R. Bresciano, Yunxia Wang, David McKearn and Ronald E. Savage",authors:[{id:"90202",title:"Dr",name:"Ronald",middleName:null,surname:"Savage",slug:"ronald-savage",fullName:"Ronald Savage"},{id:"90209",title:"Dr.",name:"Terence",middleName:null,surname:"Hall",slug:"terence-hall",fullName:"Terence Hall"},{id:"136599",title:"BSc.",name:"Karen",middleName:null,surname:"Bresciano",slug:"karen-bresciano",fullName:"Karen Bresciano"}]},{id:"46058",doi:"10.5772/57341",title:"Limit of Detection and Limit of Quantification Determination in Gas Chromatography",slug:"limit-of-detection-and-limit-of-quantification-determination-in-gas-chromatography",totalDownloads:18533,totalCrossrefCites:16,totalDimensionsCites:45,abstract:null,book:{id:"3822",slug:"advances-in-gas-chromatography",title:"Advances in Gas Chromatography",fullTitle:"Advances in Gas Chromatography"},signatures:"Ernesto Bernal",authors:[{id:"88572",title:"MSc.",name:"Ernesto",middleName:null,surname:"Bernal",slug:"ernesto-bernal",fullName:"Ernesto Bernal"}]},{id:"58596",doi:"10.5772/intechopen.72932",title:"Linearity of Calibration Curves for Analytical Methods: A Review of Criteria for Assessment of Method Reliability",slug:"linearity-of-calibration-curves-for-analytical-methods-a-review-of-criteria-for-assessment-of-method",totalDownloads:8098,totalCrossrefCites:19,totalDimensionsCites:44,abstract:"Calibration curve is a regression model used to predict the unknown concentrations of analytes of interest based on the response of the instrument to the known standards. Some statistical analyses are required to choose the best model fitting to the experimental data and also evaluate the linearity and homoscedasticity of the calibration curve. Using an internal standard corrects for the loss of analyte during sample preparation and analysis provided that it is selected appropriately. After the best regression model is selected, the analytical method needs to be validated using quality control (QC) samples prepared and stored in the same temperature as intended for the study samples. Most of the international guidelines require that the parameters, including linearity, specificity, selectivity, accuracy, precision, lower limit of quantification (LLOQ), matrix effect and stability, be assessed during validation. Despite the highly regulated area, some challenges still exist regarding the validation of some analytical methods including methods when no analyte-free matrix is available.",book:{id:"6379",slug:"calibration-and-validation-of-analytical-methods-a-sampling-of-current-approaches",title:"Calibration and Validation of Analytical Methods",fullTitle:"Calibration and Validation of Analytical Methods - A Sampling of Current Approaches"},signatures:"Seyed Mojtaba Moosavi and Sussan Ghassabian",authors:[{id:"216099",title:"Dr.",name:"Sussan",middleName:null,surname:"Ghassabian",slug:"sussan-ghassabian",fullName:"Sussan Ghassabian"},{id:"216101",title:"Mr.",name:"Seyed Mojtaba",middleName:null,surname:"Moosavi",slug:"seyed-mojtaba-moosavi",fullName:"Seyed Mojtaba Moosavi"}]}],mostDownloadedChaptersLast30Days:[{id:"55500",title:"Interpretation of Mass Spectra",slug:"interpretation-of-mass-spectra",totalDownloads:12503,totalCrossrefCites:12,totalDimensionsCites:25,abstract:"The chapter includes an introduction to the main ionisation techniques in mass spectrometry and the way the resulting fragments can be analysed. First, the fundamental notions of mass spectrometry are explained, so that the reader can easily cover this chapter (graphs, main pick, molecular ion, illogical pick, nitrogen rule, etc.). Isotopic percentage and nominal mass calculation are also explained along with fragmentation mechanism. A paragraph emphasises the ionisation energy issues, the basics of ionisation voltage, the developing potential and the energy balance. A frame time of the main theoretical milestones in both theory and experimental mass spectrometry is highlighted here. In the second part of the chapter, the molecular fragmentation for alkanes, iso-alkanes, cycloalkanes, halogen, alcohols, phenols, ethers, carbonyl compounds, carboxylic acids and functional derivatives, nitrogen compounds (amines, nitro compounds), sulphur compounds, heterocycles and biomolecules (amino acids, steroids, triglycerides) is explained. Fragmentation schemes are followed by the simplified spectra, which help the understanding of such complex phenomena. At the end of the chapter, acquisition of mass spectrum is discussed. The chapter presented here is an introduction to mass spectrometry, which, we think, helps the understanding of the mechanism of fragmentation corroborating spectral data and molecular structures.",book:{id:"5735",slug:"mass-spectrometry",title:"Mass Spectrometry",fullTitle:"Mass Spectrometry"},signatures:"Teodor Octavian Nicolescu",authors:[{id:"196775",title:"Dr.",name:"Teodor Octavian",middleName:"Octavian",surname:"Nicolescu",slug:"teodor-octavian-nicolescu",fullName:"Teodor Octavian Nicolescu"}]},{id:"57909",title:"Validation of Analytical Methods",slug:"validation-of-analytical-methods",totalDownloads:6994,totalCrossrefCites:13,totalDimensionsCites:22,abstract:"Method validation is a key element in the establishment of reference methods and within the assessment of a laboratory’s competence in generating dependable analytical records. Validation has been placed within the context of the procedure, generating chemical data. Analytical method validation, thinking about the maximum relevant processes for checking the best parameters of analytical methods, using numerous relevant overall performance indicators inclusive of selectivity, specificity, accuracy, precision, linearity, range, limit of detection (LOD), limit of quantification (LOQ), ruggedness, and robustness are severely discussed in an effort to prevent their misguided utilization and ensure scientific correctness and consistency among publications.",book:{id:"6379",slug:"calibration-and-validation-of-analytical-methods-a-sampling-of-current-approaches",title:"Calibration and Validation of Analytical Methods",fullTitle:"Calibration and Validation of Analytical Methods - A Sampling of Current Approaches"},signatures:"Tentu Nageswara Rao",authors:[{id:"220824",title:"Dr.",name:"Tentu",middleName:null,surname:"Nageswara Rao",slug:"tentu-nageswara-rao",fullName:"Tentu Nageswara Rao"}]},{id:"58596",title:"Linearity of Calibration Curves for Analytical Methods: A Review of Criteria for Assessment of Method Reliability",slug:"linearity-of-calibration-curves-for-analytical-methods-a-review-of-criteria-for-assessment-of-method",totalDownloads:8095,totalCrossrefCites:19,totalDimensionsCites:44,abstract:"Calibration curve is a regression model used to predict the unknown concentrations of analytes of interest based on the response of the instrument to the known standards. Some statistical analyses are required to choose the best model fitting to the experimental data and also evaluate the linearity and homoscedasticity of the calibration curve. Using an internal standard corrects for the loss of analyte during sample preparation and analysis provided that it is selected appropriately. After the best regression model is selected, the analytical method needs to be validated using quality control (QC) samples prepared and stored in the same temperature as intended for the study samples. Most of the international guidelines require that the parameters, including linearity, specificity, selectivity, accuracy, precision, lower limit of quantification (LLOQ), matrix effect and stability, be assessed during validation. Despite the highly regulated area, some challenges still exist regarding the validation of some analytical methods including methods when no analyte-free matrix is available.",book:{id:"6379",slug:"calibration-and-validation-of-analytical-methods-a-sampling-of-current-approaches",title:"Calibration and Validation of Analytical Methods",fullTitle:"Calibration and Validation of Analytical Methods - A Sampling of Current Approaches"},signatures:"Seyed Mojtaba Moosavi and Sussan Ghassabian",authors:[{id:"216099",title:"Dr.",name:"Sussan",middleName:null,surname:"Ghassabian",slug:"sussan-ghassabian",fullName:"Sussan Ghassabian"},{id:"216101",title:"Mr.",name:"Seyed Mojtaba",middleName:null,surname:"Moosavi",slug:"seyed-mojtaba-moosavi",fullName:"Seyed Mojtaba Moosavi"}]},{id:"64643",title:"Derivatization Methods in GC and GC/MS",slug:"derivatization-methods-in-gc-and-gc-ms",totalDownloads:6041,totalCrossrefCites:19,totalDimensionsCites:35,abstract:"The first part of this chapter presents the main objectives for performing derivatization of a sample to be analyzed by gas chromatography (GC) or gas chromatography/mass spectrometry (GC/MS). The derivatization is typically done to change the analyte properties for a better separation and also for enhancing the method sensitivity. In GC/MS, derivatization may improve the capability of compound identification. Examples illustrating such improvements are included. The second part describes several types of derivatization that are more frequently used in analytical practice. These include alkylation (e.g., methylation), formation of aryl derivatives, silylation (e.g., formation of trimethylsilyl derivatives), acylation (e.g., reactions with acyl chlorides or with chloroformates), and several other types of derivatizations. The chapter also presents typical derivatizations for analytes with specific functional groups and discusses artifact formation in certain derivatization reactions.",book:{id:"6831",slug:"gas-chromatography-derivatization-sample-preparation-application",title:"Gas Chromatography",fullTitle:"Gas Chromatography - Derivatization, Sample Preparation, Application"},signatures:"Serban C. Moldoveanu and Victor David",authors:[{id:"91597",title:"Dr.",name:"Serban",middleName:null,surname:"Moldoveanu",slug:"serban-moldoveanu",fullName:"Serban Moldoveanu"},{id:"278733",title:"Prof.",name:"Victor",middleName:null,surname:"David",slug:"victor-david",fullName:"Victor David"}]},{id:"40712",title:"Analytical Chemistry Today and Tomorrow",slug:"analytical-chemistry-today-and-tomorrow",totalDownloads:9135,totalCrossrefCites:1,totalDimensionsCites:5,abstract:null,book:{id:"2717",slug:"analytical-chemistry",title:"Analytical Chemistry",fullTitle:"Analytical Chemistry"},signatures:"Miguel Valcárcel",authors:[{id:"149298",title:"Dr.",name:null,middleName:null,surname:"Valcarcel",slug:"valcarcel",fullName:"Valcarcel"}]}],onlineFirstChaptersFilter:{topicId:"81",limit:6,offset:0},onlineFirstChaptersCollection:[{id:"82536",title:"Perspective Chapter: Multi-Dimensional Liquid Chromatography - Principles and Applications",slug:"perspective-chapter-multi-dimensional-liquid-chromatography-principles-and-applications",totalDownloads:14,totalDimensionsCites:0,doi:"10.5772/intechopen.104767",abstract:"Many complex mixtures usually constitute hundreds or even thousands of individual components of interest. Such mixtures are much too complicated to be separated for analytical duties in a reasonable period of time using only a single-dimensional chromatographic method. However, if a complex mixture is separated by an initial dimension using multi-dimensional liquid chromatography, a simpler portion of that separation is collected and goes to the second dimension. Each of these fractions will be analyzed separately, allowing exceedingly complex mixtures to be resolved in a short period of time. This chapter explains the fundamental principles, theoretical discussions as well as various applications with typical examples of multi-dimensional liquid chromatography in different fields.",book:{id:"11204",title:"Analytical Liquid Chromatography - New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11204.jpg"},signatures:"Esayas Tesfaye, Tadele Eticha, Ariaya Hymete and Ayenew Ashenef"},{id:"81761",title:"Progress in Technology of the Chromatographic Columns in HPLC",slug:"progress-in-technology-of-the-chromatographic-columns-in-hplc",totalDownloads:15,totalDimensionsCites:0,doi:"10.5772/intechopen.104123",abstract:"Chromatographic column is an essential part of a any HPLC separation, and significant progress has been made in developing columns with better performance to provide better separation, a shorter separation time, resilience to a wider pH range of the mobile phase, longer lifetime, use of lower volumes of mobile phase, etc. All these characteristics were achieved by the introduction of novel technologies and improvements of the older ones. These include smaller particle used to fill the column, more homogeneous spherical particles, core-shell particles, monolithic columns, more pure silica as a stationary phase support, use of ethylene bridge silica, a wider variety of active phases, use of mixed mode stationary phases, use of polymers as stationary phase, use of various endcapping techniques, etc. Miniaturization and progress in the instrumentation played an important role for the chromatographic column development. All these aspects are summarized in the present chapter.",book:{id:"11204",title:"Analytical Liquid Chromatography - New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11204.jpg"},signatures:"Serban C. Moldoveanu and Victor David"},{id:"81479",title:"Perspective Chapter: Mixed-Mode Chromatography",slug:"perspective-chapter-mixed-mode-chromatography",totalDownloads:29,totalDimensionsCites:0,doi:"10.5772/intechopen.104545",abstract:"In this chapter, we present mixed-mode stationary phases and their applications in the determination of nonpolar, polar, and charged compounds, as well as larger molecules such as peptides or proteins using a single column. Mixed-mode chromatography (MMC) has been growing rapidly in recent years, owing to the new generation of mixed-mode stationary phases and a better understanding of multimode interactions. Mixed-mode chromatography provides a wide range of selectivities and adequate retention of a variety of compounds, especially polar and charged molecules. In summary, this technique is particularly useful in the pharmaceutical analysis of drugs, impurities, biopharmaceuticals, and polar compounds in natural products.",book:{id:"11204",title:"Analytical Liquid Chromatography - New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11204.jpg"},signatures:"Ngoc-Van Thi Nguyen"},{id:"81368",title:"Ionic Liquids in Liquid Chromatography",slug:"ionic-liquids-in-liquid-chromatography",totalDownloads:39,totalDimensionsCites:0,doi:"10.5772/intechopen.104122",abstract:"Ionic liquids (ILs) are salts of organic cations that are present in liquid state. They can be used as alternative to organic solvents for various analytical processes such as extracting solvents in sample preparation, or as mobile phase or components of the mobile phase in high performance liquid chromatography (HPLC). Also they can be used as stationary phase in gas chromatography (GC), or attached to a solid support as stationary phase in HPLC. Ils are typically more environmentally-friendly solvents than the classic organic solvents having low volatility, flammability and toxicity. The chapter presents various applications of ILs in liquid chromatography.",book:{id:"11204",title:"Analytical Liquid Chromatography - New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11204.jpg"},signatures:"Victor David and Serban C. Moldoveanu"},{id:"80336",title:"Perspective Chapter: Advantages of Ion Mobility Coupled with HPLC/UPLC",slug:"perspective-chapter-advantages-of-ion-mobility-coupled-with-hplc-uplc",totalDownloads:58,totalDimensionsCites:0,doi:"10.5772/intechopen.102380",abstract:"Ion mobility is a new separation technique that can be coupled with high performance liquid chromatography (HPLC) or ultra-performance liquid chromatography (UPLC). Variances in cross-sectional ionic areas of different molecules create differential speeds through a gas allowing for millisecond separations. Combining ion mobility with both liquid chromatography and mass spectrometry with fragmentation, separations can be achieved on the second (HPLC), millisecond (ion mobility), and microsecond (mass spectrometry) timescales. This orthogonal separation greatly cleans up mass spectral data of co-eluting peaks from the liquid chromatography and adds to the descriptive data of each ion. With descriptive data such as retention time, cross-sectional area, m/z ratio, and mass spectral fragmentation, many options become available for analytical analysis. Options ranging from descriptive data collation into instrument libraries to sensitivity enhancement for trace analysis will be explored in this chapter along with the description of different forms of ion mobility.",book:{id:"11204",title:"Analytical Liquid Chromatography - New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11204.jpg"},signatures:"Robert Owen Bussey III"}],onlineFirstChaptersTotal:5},preDownload:{success:null,errors:{}},subscriptionForm:{success:null,errors:{}},aboutIntechopen:{},privacyPolicy:{},peerReviewing:{},howOpenAccessPublishingWithIntechopenWorks:{},sponsorshipBooks:{sponsorshipBooks:[],offset:8,limit:8,total:0},allSeries:{pteSeriesList:[{id:"14",title:"Artificial Intelligence",numberOfPublishedBooks:9,numberOfPublishedChapters:90,numberOfOpenTopics:6,numberOfUpcomingTopics:0,issn:"2633-1403",doi:"10.5772/intechopen.79920",isOpenForSubmission:!0},{id:"7",title:"Biomedical Engineering",numberOfPublishedBooks:12,numberOfPublishedChapters:108,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2631-5343",doi:"10.5772/intechopen.71985",isOpenForSubmission:!0}],lsSeriesList:[{id:"11",title:"Biochemistry",numberOfPublishedBooks:33,numberOfPublishedChapters:330,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2632-0983",doi:"10.5772/intechopen.72877",isOpenForSubmission:!0},{id:"25",title:"Environmental Sciences",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2754-6713",doi:"10.5772/intechopen.100362",isOpenForSubmission:!0},{id:"10",title:"Physiology",numberOfPublishedBooks:14,numberOfPublishedChapters:145,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-8261",doi:"10.5772/intechopen.72796",isOpenForSubmission:!0}],hsSeriesList:[{id:"3",title:"Dentistry",numberOfPublishedBooks:9,numberOfPublishedChapters:141,numberOfOpenTopics:2,numberOfUpcomingTopics:0,issn:"2631-6218",doi:"10.5772/intechopen.71199",isOpenForSubmission:!0},{id:"6",title:"Infectious Diseases",numberOfPublishedBooks:13,numberOfPublishedChapters:124,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-6188",doi:"10.5772/intechopen.71852",isOpenForSubmission:!0},{id:"13",title:"Veterinary Medicine and Science",numberOfPublishedBooks:11,numberOfPublishedChapters:112,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2632-0517",doi:"10.5772/intechopen.73681",isOpenForSubmission:!0}],sshSeriesList:[{id:"22",title:"Business, Management and Economics",numberOfPublishedBooks:1,numberOfPublishedChapters:22,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2753-894X",doi:"10.5772/intechopen.100359",isOpenForSubmission:!0},{id:"23",title:"Education and Human Development",numberOfPublishedBooks:0,numberOfPublishedChapters:12,numberOfOpenTopics:1,numberOfUpcomingTopics:1,issn:null,doi:"10.5772/intechopen.100360",isOpenForSubmission:!0},{id:"24",title:"Sustainable Development",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:5,numberOfUpcomingTopics:0,issn:"2753-6580",doi:"10.5772/intechopen.100361",isOpenForSubmission:!0}],testimonialsList:[{id:"6",text:"It is great to work with the IntechOpen to produce a worthwhile collection of research that also becomes a great educational resource and guide for future research endeavors.",author:{id:"259298",name:"Edward",surname:"Narayan",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/259298/images/system/259298.jpeg",slug:"edward-narayan",institution:{id:"3",name:"University of Queensland",country:{id:null,name:"Australia"}}}},{id:"13",text:"The collaboration with and support of the technical staff of IntechOpen is fantastic. The whole process of submitting an article and editing of the submitted article goes extremely smooth and fast, the number of reads and downloads of chapters is high, and the contributions are also frequently cited.",author:{id:"55578",name:"Antonio",surname:"Jurado-Navas",institutionString:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRisIQAS/Profile_Picture_1626166543950",slug:"antonio-jurado-navas",institution:{id:"720",name:"University of Malaga",country:{id:null,name:"Spain"}}}}]},series:{item:{id:"3",title:"Dentistry",doi:"10.5772/intechopen.71199",issn:"2631-6218",scope:"\r\n\tThis book series will offer a comprehensive overview of recent research trends as well as clinical applications within different specialties of dentistry. Topics will include overviews of the health of the oral cavity, from prevention and care to different treatments for the rehabilitation of problems that may affect the organs and/or tissues present. The different areas of dentistry will be explored, with the aim of disseminating knowledge and providing readers with new tools for the comprehensive treatment of their patients with greater safety and with current techniques. Ongoing issues, recent advances, and future diagnostic approaches and therapeutic strategies will also be discussed. This series of books will focus on various aspects of the properties and results obtained by the various treatments available, whether preventive or curative.
",coverUrl:"https://cdn.intechopen.com/series/covers/3.jpg",latestPublicationDate:"August 14th, 2022",hasOnlineFirst:!0,numberOfPublishedBooks:9,editor:{id:"419588",title:"Ph.D.",name:"Sergio",middleName:"Alexandre",surname:"Gehrke",slug:"sergio-gehrke",fullName:"Sergio Gehrke",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y000038WgMKQA0/Profile_Picture_2022-06-02T11:44:20.jpg",biography:"Dr. Sergio Alexandre Gehrke is a doctorate holder in two fields. The first is a Ph.D. in Cellular and Molecular Biology from the Pontificia Catholic University, Porto Alegre, Brazil, in 2010 and the other is an International Ph.D. in Bioengineering from the Universidad Miguel Hernandez, Elche/Alicante, Spain, obtained in 2020. In 2018, he completed a postdoctoral fellowship in Materials Engineering in the NUCLEMAT of the Pontificia Catholic University, Porto Alegre, Brazil. He is currently the Director of the Postgraduate Program in Implantology of the Bioface/UCAM/PgO (Montevideo, Uruguay), Director of the Cathedra of Biotechnology of the Catholic University of Murcia (Murcia, Spain), an Extraordinary Full Professor of the Catholic University of Murcia (Murcia, Spain) as well as the Director of the private center of research Biotecnos – Technology and Science (Montevideo, Uruguay). Applied biomaterials, cellular and molecular biology, and dental implants are among his research interests. He has published several original papers in renowned journals. In addition, he is also a Collaborating Professor in several Postgraduate programs at different universities all over the world.",institutionString:null,institution:{name:"Universidad Católica San Antonio de Murcia",institutionURL:null,country:{name:"Spain"}}},editorTwo:null,editorThree:null},subseries:{paginationCount:2,paginationItems:[{id:"1",title:"Oral Health",coverUrl:"https://cdn.intechopen.com/series_topics/covers/1.jpg",isOpenForSubmission:!0,editor:{id:"173955",title:"Prof.",name:"Sandra",middleName:null,surname:"Marinho",slug:"sandra-marinho",fullName:"Sandra Marinho",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRGYMQA4/Profile_Picture_2022-06-01T13:22:41.png",biography:"Dr. Sandra A. Marinho is an Associate Professor and Brazilian researcher at the State University of Paraíba (Universidade Estadual da Paraíba- UEPB), Campus VIII, located in Araruna, state of Paraíba since 2011. She holds a degree in Dentistry from the Federal University of Alfenas (UNIFAL), while her specialization and professional improvement in Stomatology took place at Hospital Heliopolis (São Paulo, SP). Her qualifications are: a specialist in Dental Imaging and Radiology, Master in Dentistry (Periodontics) from the University of São Paulo (FORP-USP, Ribeirão Preto, SP), and Doctor (Ph.D.) in Dentistry (Stomatology Clinic) from Hospital São Lucas of the Pontifical Catholic University of Rio Grande do Sul (HSL-PUCRS, Porto Alegre, RS). She held a postdoctoral internship at the Federal University from Jequitinhonha and Mucuri Valleys (UFVJM, Diamantina, MG). She is currently a member of the Brazilian Society for Dental Research (SBPqO) and the Brazilian Society of Stomatology and Pathology (SOBEP). Dr. Marinho's experience in Dentistry mainly covers the following subjects: oral diagnosis, oral radiology; oral medicine; lesions and oral infections; oral pathology, laser therapy and epidemiological studies.",institutionString:null,institution:{name:"State University of Paraíba",institutionURL:null,country:{name:"Brazil"}}},editorTwo:null,editorThree:null},{id:"2",title:"Prosthodontics and Implant Dentistry",coverUrl:"https://cdn.intechopen.com/series_topics/covers/2.jpg",isOpenForSubmission:!0,editor:{id:"179568",title:"Associate Prof.",name:"Wen Lin",middleName:null,surname:"Chai",slug:"wen-lin-chai",fullName:"Wen Lin Chai",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRHGAQA4/Profile_Picture_2022-05-23T14:31:12.png",biography:"Professor Dr. Chai Wen Lin is currently a lecturer at the Department of Restorative Dentistry, Faculty of Dentistry of the University of Malaya. She obtained a Master of Dental Science in 2006 and a Ph.D. in 2011. Her Ph.D. research work on the soft tissue-implant interface at the University of Sheffield has yielded several important publications in the key implant journals. She was awarded an Excellent Exchange Award by the University of Sheffield which gave her the opportunity to work at the famous Faculty of Dentistry of the University of Gothenburg, Sweden, under the tutelage of Prof. Peter Thomsen. In 2016, she was appointed as a visiting scholar at UCLA, USA, with attachment in Hospital Dentistry, and involvement in research work related to zirconia implant. In 2016, her contribution to dentistry was recognized by the Royal College of Surgeon of Edinburgh with her being awarded a Fellowship in Dental Surgery. She has authored numerous papers published both in local and international journals. She was the Editor of the Malaysian Dental Journal for several years. Her main research interests are implant-soft tissue interface, zirconia implant, photofunctionalization, 3D-oral mucosal model and pulpal regeneration.",institutionString:null,institution:{name:"University of Malaya",institutionURL:null,country:{name:"Malaysia"}}},editorTwo:{id:"479686",title:"Dr.",name:"Ghee Seong",middleName:null,surname:"Lim",slug:"ghee-seong-lim",fullName:"Ghee Seong Lim",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y00003ScjLZQAZ/Profile_Picture_2022-06-08T14:17:06.png",biography:"Assoc. Prof Dr. Lim Ghee Seong graduated with a Bachelor of Dental Surgery from University of Malaya, Kuala Lumpur in 2008. He then pursued his Master in Clinical Dentistry, specializing in Restorative Dentistry at Newcastle University, Newcastle, UK, where he graduated with distinction. He has also been awarded the International Training Fellowship (Restorative Dentistry) from the Royal College of Surgeons. His passion for teaching then led him to join the faculty of dentistry at University Malaya and he has since became a valuable lecturer and clinical specialist in the Department of Restorative Dentistry. He is currently the removable prosthodontic undergraduate year 3 coordinator, head of the undergraduate module on occlusion and a member of the multidisciplinary team for the TMD clinic. He has previous membership in the British Society for Restorative Dentistry, the Malaysian Association of Aesthetic Dentistry and he is currently a lifetime member of the Malaysian Association for Prosthodontics. Currently, he is also the examiner for the Restorative Specialty Membership Examinations, Royal College of Surgeons, England. He has authored and co-authored handful of both local and international journal articles. His main interest is in prosthodontics, dental material, TMD and regenerative dentistry.",institutionString:null,institution:{name:"University of Malaya",institutionURL:null,country:{name:"Malaysia"}}},editorThree:null}]},overviewPageOFChapters:{paginationCount:49,paginationItems:[{id:"83087",title:"Role of Cellular Responses in Periodontal Tissue Destruction",doi:"10.5772/intechopen.106645",signatures:"Nam Cong-Nhat Huynh",slug:"role-of-cellular-responses-in-periodontal-tissue-destruction",totalDownloads:8,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Periodontology - New Insights",coverURL:"https://cdn.intechopen.com/books/images_new/11566.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"83073",title:"Dental and Orofacial Trauma Impacts on Oral-Health-Related—Quality of Life in Children: Low- and Middle-Income Countries",doi:"10.5772/intechopen.105845",signatures:"Yolanda Malele-Kolisa, Nazia Khan, Mpho P. Molete, Maphefo D. Thekiso and Mzubanzi Mabongo",slug:"dental-and-orofacial-trauma-impacts-on-oral-health-related-quality-of-life-in-children-low-and-middl",totalDownloads:11,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Trauma",coverURL:"https://cdn.intechopen.com/books/images_new/11567.jpg",subseries:{id:"2",title:"Prosthodontics and Implant Dentistry"}}},{id:"82938",title:"Trauma from Occlusion: Practical Management Guidelines",doi:"10.5772/intechopen.105960",signatures:"Prashanth Shetty, Shweta Hegde, Shubham Chelkar, Rahul Chaturvedi, Shruti Pochhi, Aakanksha Shrivastava, Dudala Lakshmi, Shreya Mukherjee, Pankaj Bajaj and Shahzada Asif Raza",slug:"trauma-from-occlusion-practical-management-guidelines",totalDownloads:14,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Trauma",coverURL:"https://cdn.intechopen.com/books/images_new/11567.jpg",subseries:{id:"2",title:"Prosthodontics and Implant Dentistry"}}},{id:"82654",title:"Atraumatic Restorative Treatment: More than a Minimally Invasive Approach?",doi:"10.5772/intechopen.105623",signatures:"Manal A. Ablal",slug:"atraumatic-restorative-treatment-more-than-a-minimally-invasive-approach",totalDownloads:4,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Caries - The Selection of Restoration Methods and Restorative Materials",coverURL:"https://cdn.intechopen.com/books/images_new/11565.jpg",subseries:{id:"1",title:"Oral Health"}}}]},overviewPagePublishedBooks:{paginationCount:9,paginationItems:[{type:"book",id:"6668",title:"Dental Caries",subtitle:"Diagnosis, Prevention and Management",coverURL:"https://cdn.intechopen.com/books/images_new/6668.jpg",slug:"dental-caries-diagnosis-prevention-and-management",publishedDate:"September 19th 2018",editedByType:"Edited by",bookSignature:"Zühre Akarslan",hash:"b0f7667770a391f772726c3013c1b9ba",volumeInSeries:1,fullTitle:"Dental Caries - Diagnosis, Prevention and Management",editors:[{id:"171887",title:"Prof.",name:"Zühre",middleName:null,surname:"Akarslan",slug:"zuhre-akarslan",fullName:"Zühre Akarslan",profilePictureURL:"https://mts.intechopen.com/storage/users/171887/images/system/171887.jpg",biography:"Zühre Akarslan was born in 1977 in Cyprus. She graduated from Gazi University Faculty of Dentistry, Ankara, Turkey in 2000. \r\nLater she received her Ph.D. degree from the Oral Diagnosis and Radiology Department; which was recently renamed as Oral and Dentomaxillofacial Radiology, from the same university. \r\nShe is working as a full-time Associate Professor and is a lecturer and an academic researcher. \r\nHer expertise areas are dental caries, cancer, dental fear and anxiety, gag reflex in dentistry, oral medicine, and dentomaxillofacial radiology.",institutionString:"Gazi University",institution:{name:"Gazi University",institutionURL:null,country:{name:"Turkey"}}}]},{type:"book",id:"7139",title:"Current Approaches in Orthodontics",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7139.jpg",slug:"current-approaches-in-orthodontics",publishedDate:"April 10th 2019",editedByType:"Edited by",bookSignature:"Belma Işık Aslan and Fatma Deniz Uzuner",hash:"2c77384eeb748cf05a898d65b9dcb48a",volumeInSeries:2,fullTitle:"Current Approaches in Orthodontics",editors:[{id:"42847",title:"Dr.",name:"Belma",middleName:null,surname:"Işik Aslan",slug:"belma-isik-aslan",fullName:"Belma Işik Aslan",profilePictureURL:"https://mts.intechopen.com/storage/users/42847/images/system/42847.jpg",biography:"Dr. Belma IşIk Aslan was born in 1976 in Ankara-TURKEY. After graduating from TED Ankara College in 1994, she attended to Gazi University, Faculty of Dentistry in Ankara. She completed her PhD in orthodontic education at Gazi University between 1999-2005. Dr. Işık Aslan stayed at the Providence Hospital Craniofacial Institude and Reconstructive Surgery in Michigan, USA for three months as an observer. She worked as a specialist doctor at Gazi University, Dentistry Faculty, Department of Orthodontics between 2005-2014. She was appointed as associate professor in January, 2014 and as professor in 2021. Dr. Işık Aslan still works as an instructor at the same faculty. She has published a total of 35 articles, 10 book chapters, 39 conference proceedings both internationally and nationally. Also she was the academic editor of the international book 'Current Advances in Orthodontics'. She is a member of the Turkish Orthodontic Society and Turkish Cleft Lip and Palate Society. She is married and has 2 children. Her knowledge of English is at an advanced level.",institutionString:"Gazi University Dentistry Faculty Department of Orthodontics",institution:null}]},{type:"book",id:"7572",title:"Trauma in Dentistry",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7572.jpg",slug:"trauma-in-dentistry",publishedDate:"July 3rd 2019",editedByType:"Edited by",bookSignature:"Serdar Gözler",hash:"7cb94732cfb315f8d1e70ebf500eb8a9",volumeInSeries:3,fullTitle:"Trauma in Dentistry",editors:[{id:"204606",title:"Dr.",name:"Serdar",middleName:null,surname:"Gözler",slug:"serdar-gozler",fullName:"Serdar Gözler",profilePictureURL:"https://mts.intechopen.com/storage/users/204606/images/system/204606.jpeg",biography:"Dr. Serdar Gözler has completed his undergraduate studies at the Marmara University Faculty of Dentistry in 1978, followed by an assistantship in the Prosthesis Department of Dicle University Faculty of Dentistry. Starting his PhD work on non-resilient overdentures with Assoc. Prof. Hüsnü Yavuzyılmaz, he continued his studies with Prof. Dr. Gürbüz Öztürk of Istanbul University Faculty of Dentistry Department of Prosthodontics, this time on Gnatology. He attended training programs on occlusion, neurology, neurophysiology, EMG, radiology and biostatistics. In 1982, he presented his PhD thesis \\Gerber and Lauritzen Occlusion Analysis Techniques: Diagnosis Values,\\ at Istanbul University School of Dentistry, Department of Prosthodontics. As he was also working with Prof. Senih Çalıkkocaoğlu on The Physiology of Chewing at the same time, Gözler has written a chapter in Çalıkkocaoğlu\\'s book \\Complete Prostheses\\ entitled \\The Place of Neuromuscular Mechanism in Prosthetic Dentistry.\\ The book was published five times since by the Istanbul University Publications. Having presented in various conferences about occlusion analysis until 1998, Dr. Gözler has also decided to use the T-Scan II occlusion analysis method. Having been personally trained by Dr. Robert Kerstein on this method, Dr. Gözler has been lecturing on the T-Scan Occlusion Analysis Method in conferences both in Turkey and abroad. Dr. Gözler has various articles and presentations on Digital Occlusion Analysis methods. He is now Head of the TMD Clinic at Prosthodontic Department of Faculty of Dentistry , Istanbul Aydın University , Turkey.",institutionString:"Istanbul Aydin University",institution:{name:"Istanbul Aydın University",institutionURL:null,country:{name:"Turkey"}}}]},{type:"book",id:"7060",title:"Gingival Disease",subtitle:"A Professional Approach for Treatment and Prevention",coverURL:"https://cdn.intechopen.com/books/images_new/7060.jpg",slug:"gingival-disease-a-professional-approach-for-treatment-and-prevention",publishedDate:"October 23rd 2019",editedByType:"Edited by",bookSignature:"Alaa Eddin Omar Al Ostwani",hash:"b81d39988cba3a3cf746c1616912cf41",volumeInSeries:4,fullTitle:"Gingival Disease - A Professional Approach for Treatment and Prevention",editors:[{id:"240870",title:"Ph.D.",name:"Alaa Eddin Omar",middleName:null,surname:"Al Ostwani",slug:"alaa-eddin-omar-al-ostwani",fullName:"Alaa Eddin Omar Al Ostwani",profilePictureURL:"https://mts.intechopen.com/storage/users/240870/images/system/240870.jpeg",biography:"Dr. Al Ostwani Alaa Eddin Omar received his Master in dentistry from Damascus University in 2010, and his Ph.D. in Pediatric Dentistry from Damascus University in 2014. Dr. Al Ostwani is an assistant professor and faculty member at IUST University since 2014. \nDuring his academic experience, he has received several awards including the scientific research award from the Union of Arab Universities, the Syrian gold medal and the international gold medal for invention and creativity. Dr. Al Ostwani is a Member of the International Association of Dental Traumatology and the Syrian Society for Research and Preventive Dentistry since 2017. He is also a Member of the Reviewer Board of International Journal of Dental Medicine (IJDM), and the Indian Journal of Conservative and Endodontics since 2016.",institutionString:"International University for Science and Technology.",institution:{name:"Islamic University of Science and Technology",institutionURL:null,country:{name:"India"}}}]}]},openForSubmissionBooks:{paginationCount:2,paginationItems:[{id:"11673",title:"Stem Cell Research",coverURL:"https://cdn.intechopen.com/books/images_new/11673.jpg",hash:"13092df328080c762dd9157be18ca38c",secondStepPassed:!0,currentStepOfPublishingProcess:3,submissionDeadline:"July 13th 2022",isOpenForSubmission:!0,editors:[{id:"203598",title:"Ph.D.",name:"Diana",surname:"Kitala",slug:"diana-kitala",fullName:"Diana Kitala"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{id:"12215",title:"Cell Death and Disease",coverURL:"https://cdn.intechopen.com/books/images_new/12215.jpg",hash:"dfd456a29478fccf4ebd3294137eb1e3",secondStepPassed:!0,currentStepOfPublishingProcess:3,submissionDeadline:"July 29th 2022",isOpenForSubmission:!0,editors:[{id:"59529",title:"Dr.",name:"Ke",surname:"Xu",slug:"ke-xu",fullName:"Ke Xu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},onlineFirstChapters:{paginationCount:21,paginationItems:[{id:"83000",title:"Purine and Pyrimidine Pathways as Antimalarial Targets",doi:"10.5772/intechopen.106468",signatures:"Yacoba V.T. Minnow and Vern L. Schramm",slug:"purine-and-pyrimidine-pathways-as-antimalarial-targets",totalDownloads:1,totalCrossrefCites:0,totalDimensionsCites:null,authors:null,book:{title:"Malaria - Recent Advances, and New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11576.jpg",subseries:{id:"5",title:"Parasitic Infectious Diseases"}}},{id:"83065",title:"Interventions and Practical Approaches to Reduce the Burden of Malaria on School-Aged Children",doi:"10.5772/intechopen.106469",signatures:"Andrew Macnab",slug:"interventions-and-practical-approaches-to-reduce-the-burden-of-malaria-on-school-aged-children",totalDownloads:4,totalCrossrefCites:0,totalDimensionsCites:0,authors:[{name:"Andrew",surname:"Macnab"}],book:{title:"Malaria - Recent Advances, and New Perspectives",coverURL:"https://cdn.intechopen.com/books/images_new/11576.jpg",subseries:{id:"5",title:"Parasitic Infectious Diseases"}}},{id:"82804",title:"Psychiatric Problems in HIV Care",doi:"10.5772/intechopen.106077",signatures:"Seggane Musisi and Noeline Nakasujja",slug:"psychiatric-problems-in-hiv-care",totalDownloads:2,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Future Opportunities and Tools for Emerging Challenges for HIV/AIDS Control",coverURL:"https://cdn.intechopen.com/books/images_new/11575.jpg",subseries:{id:"6",title:"Viral Infectious Diseases"}}},{id:"82827",title:"Epidemiology and Control of Schistosomiasis",doi:"10.5772/intechopen.105170",signatures:"Célestin Kyambikwa Bisangamo",slug:"epidemiology-and-control-of-schistosomiasis",totalDownloads:6,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"New Horizons for Schistosomiasis Research",coverURL:"https://cdn.intechopen.com/books/images_new/10829.jpg",subseries:{id:"5",title:"Parasitic Infectious Diseases"}}},{id:"82817",title:"Perspective Chapter: Microfluidic Technologies for On-Site Detection and Quantification of Infectious Diseases - The Experience with SARS-CoV-2/COVID-19",doi:"10.5772/intechopen.105950",signatures:"Andres Escobar and Chang-qing Xu",slug:"perspective-chapter-microfluidic-technologies-for-on-site-detection-and-quantification-of-infectious",totalDownloads:3,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"SARS-CoV-2 Variants - Two Years After",coverURL:"https://cdn.intechopen.com/books/images_new/11573.jpg",subseries:{id:"6",title:"Viral Infectious Diseases"}}},{id:"82667",title:"Perspective Chapter: Analysis of SARS-CoV-2 Indirect Spreading Routes and Possible Countermeasures",doi:"10.5772/intechopen.105914",signatures:"Cesare Saccani, Marco Pellegrini and Alessandro Guzzini",slug:"perspective-chapter-analysis-of-sars-cov-2-indirect-spreading-routes-and-possible-countermeasures",totalDownloads:10,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"SARS-CoV-2 Variants - Two Years After",coverURL:"https://cdn.intechopen.com/books/images_new/11573.jpg",subseries:{id:"6",title:"Viral Infectious Diseases"}}},{id:"82559",title:"Perspective Chapter: Bioinformatics Study of the Evolution of SARS-CoV-2 Spike Protein",doi:"10.5772/intechopen.105915",signatures:"Črtomir Podlipnik, Radostina Alexandrova, Sebastian Pleško, Urban Bren and Marko Jukič",slug:"perspective-chapter-bioinformatics-study-of-the-evolution-of-sars-cov-2-spike-protein",totalDownloads:16,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"SARS-CoV-2 Variants - Two Years After",coverURL:"https://cdn.intechopen.com/books/images_new/11573.jpg",subseries:{id:"6",title:"Viral Infectious Diseases"}}},{id:"82521",title:"Challenges in Platelet Functions in HIV/AIDS Management",doi:"10.5772/intechopen.105731",signatures:"Gordon Ogweno",slug:"challenges-in-platelet-functions-in-hiv-aids-management",totalDownloads:16,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Future Opportunities and Tools for Emerging Challenges for HIV/AIDS Control",coverURL:"https://cdn.intechopen.com/books/images_new/11575.jpg",subseries:{id:"6",title:"Viral Infectious Diseases"}}},{id:"82701",title:"Pathology of Streptococcal Infections",doi:"10.5772/intechopen.105814",signatures:"Yutaka Tsutsumi",slug:"pathology-of-streptococcal-infections",totalDownloads:8,totalCrossrefCites:0,totalDimensionsCites:0,authors:[{name:"Yutaka",surname:"Tsutsumi"}],book:{title:"Streptococcal Infections",coverURL:"https://cdn.intechopen.com/books/images_new/10828.jpg",subseries:{id:"3",title:"Bacterial Infectious Diseases"}}},{id:"82634",title:"Bacterial Sexually Transmitted Disease",doi:"10.5772/intechopen.105747",signatures:"Lebeza Alemu Tenaw",slug:"bacterial-sexually-transmitted-disease",totalDownloads:12,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Bacterial Sexually Transmitted Infections - New Findings, Diagnosis, Treatment, and Prevention",coverURL:"https://cdn.intechopen.com/books/images_new/11569.jpg",subseries:{id:"3",title:"Bacterial Infectious Diseases"}}}]},subseriesFiltersForOFChapters:[{caption:"Fungal Infectious Diseases",value:4,count:1,group:"subseries"},{caption:"Bacterial Infectious Diseases",value:3,count:5,group:"subseries"},{caption:"Parasitic Infectious Diseases",value:5,count:5,group:"subseries"},{caption:"Viral Infectious Diseases",value:6,count:10,group:"subseries"}],publishedBooks:{paginationCount:33,paginationItems:[{type:"book",id:"10840",title:"Benzimidazole",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10840.jpg",slug:"benzimidazole",publishedDate:"July 13th 2022",editedByType:"Edited by",bookSignature:"Pravin Kendrekar and Vinayak Adimule",hash:"e28c770013e7a8dd0fc37aea6aa9def8",volumeInSeries:34,fullTitle:"Benzimidazole",editors:[{id:"310674",title:"Dr.",name:"Pravin",middleName:null,surname:"Kendrekar",slug:"pravin-kendrekar",fullName:"Pravin Kendrekar",profilePictureURL:"https://mts.intechopen.com/storage/users/310674/images/system/310674.jpg",institutionString:"Visiting Scientist at Lipid Nanostructures Laboratory, Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10798",title:"Starch",subtitle:"Evolution and Recent Advances",coverURL:"https://cdn.intechopen.com/books/images_new/10798.jpg",slug:"starch-evolution-and-recent-advances",publishedDate:"June 28th 2022",editedByType:"Edited by",bookSignature:"Martins Ochubiojo Emeje",hash:"f197f6062c1574a9a90e50a369271bcf",volumeInSeries:33,fullTitle:"Starch - Evolution and Recent Advances",editors:[{id:"94311",title:"Prof.",name:"Martins",middleName:"Ochubiojo",surname:"Ochubiojo Emeje",slug:"martins-ochubiojo-emeje",fullName:"Martins Ochubiojo Emeje",profilePictureURL:"https://mts.intechopen.com/storage/users/94311/images/system/94311.jpeg",institutionString:"National Institute for Pharmaceutical Research and Development",institution:{name:"National Institute for Pharmaceutical Research and Development",institutionURL:null,country:{name:"Nigeria"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"11332",title:"Essential Oils",subtitle:"Advances in Extractions and Biological Applications",coverURL:"https://cdn.intechopen.com/books/images_new/11332.jpg",slug:"essential-oils-advances-in-extractions-and-biological-applications",publishedDate:"June 23rd 2022",editedByType:"Edited by",bookSignature:"Mozaniel Santana de Oliveira and Eloisa Helena de Aguiar Andrade",hash:"742e6cae3a35686f975edc8d7f9afa94",volumeInSeries:32,fullTitle:"Essential Oils - Advances in Extractions and Biological Applications",editors:[{id:"195290",title:"Ph.D.",name:"Mozaniel",middleName:null,surname:"Santana De Oliveira",slug:"mozaniel-santana-de-oliveira",fullName:"Mozaniel Santana De Oliveira",profilePictureURL:"https://mts.intechopen.com/storage/users/195290/images/system/195290.png",institutionString:"Museu Paraense Emílio Goeldi",institution:{name:"Museu Paraense Emílio Goeldi",institutionURL:null,country:{name:"Brazil"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10839",title:"Protein Detection",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10839.jpg",slug:"protein-detection",publishedDate:"June 23rd 2022",editedByType:"Edited by",bookSignature:"Yusuf Tutar and Lütfi Tutar",hash:"2f1c0e4e0207fc45c936e7d22a5369c4",volumeInSeries:31,fullTitle:"Protein Detection",editors:[{id:"158492",title:"Prof.",name:"Yusuf",middleName:null,surname:"Tutar",slug:"yusuf-tutar",fullName:"Yusuf Tutar",profilePictureURL:"https://mts.intechopen.com/storage/users/158492/images/system/158492.jpeg",institutionString:"University of Health Sciences",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10797",title:"Cell Culture",subtitle:"Advanced Technology and Applications in Medical and Life Sciences",coverURL:"https://cdn.intechopen.com/books/images_new/10797.jpg",slug:"cell-culture-advanced-technology-and-applications-in-medical-and-life-sciences",publishedDate:"June 15th 2022",editedByType:"Edited by",bookSignature:"Xianquan Zhan",hash:"2c628f4757f9639a4450728d839a7842",volumeInSeries:30,fullTitle:"Cell Culture - Advanced Technology and Applications in Medical and Life Sciences",editors:[{id:"223233",title:"Prof.",name:"Xianquan",middleName:null,surname:"Zhan",slug:"xianquan-zhan",fullName:"Xianquan Zhan",profilePictureURL:"https://mts.intechopen.com/storage/users/223233/images/system/223233.png",institutionString:"Shandong First Medical University",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10841",title:"Hydrolases",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10841.jpg",slug:"hydrolases",publishedDate:"June 15th 2022",editedByType:"Edited by",bookSignature:"Sajjad Haider, Adnan Haider and Angel Catalá",hash:"4e868cde273d65a7ff54b1817d640629",volumeInSeries:29,fullTitle:"Hydrolases",editors:[{id:"110708",title:"Dr.",name:"Sajjad",middleName:null,surname:"Haider",slug:"sajjad-haider",fullName:"Sajjad Haider",profilePictureURL:"https://mts.intechopen.com/storage/users/110708/images/system/110708.png",institutionString:"King Saud University",institution:{name:"King Saud University",institutionURL:null,country:{name:"Saudi Arabia"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10803",title:"Reactive Oxygen Species",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10803.jpg",slug:"reactive-oxygen-species",publishedDate:"April 28th 2022",editedByType:"Edited by",bookSignature:"Rizwan Ahmad",hash:"176adcf090fdd1f93cb8ce3146e79ca1",volumeInSeries:28,fullTitle:"Reactive Oxygen Species",editors:[{id:"40482",title:null,name:"Rizwan",middleName:null,surname:"Ahmad",slug:"rizwan-ahmad",fullName:"Rizwan Ahmad",profilePictureURL:"https://mts.intechopen.com/storage/users/40482/images/system/40482.jpeg",institutionString:"Imam Abdulrahman Bin Faisal University",institution:{name:"Imam Abdulrahman Bin Faisal University",institutionURL:null,country:{name:"Saudi Arabia"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9008",title:"Vitamin K",subtitle:"Recent Topics on the Biology and Chemistry",coverURL:"https://cdn.intechopen.com/books/images_new/9008.jpg",slug:"vitamin-k-recent-topics-on-the-biology-and-chemistry",publishedDate:"March 23rd 2022",editedByType:"Edited by",bookSignature:"Hiroyuki Kagechika and Hitoshi Shirakawa",hash:"8b43add5389ba85743e0a9491e4b9943",volumeInSeries:27,fullTitle:"Vitamin K - Recent Topics on the Biology and Chemistry",editors:[{id:"180528",title:"Dr.",name:"Hiroyuki",middleName:null,surname:"Kagechika",slug:"hiroyuki-kagechika",fullName:"Hiroyuki Kagechika",profilePictureURL:"https://mts.intechopen.com/storage/users/180528/images/system/180528.jpg",institutionString:"Tokyo Medical and Dental University",institution:{name:"Tokyo Medical and Dental University",institutionURL:null,country:{name:"Japan"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"10799",title:"Phenolic Compounds",subtitle:"Chemistry, Synthesis, Diversity, Non-Conventional Industrial, Pharmaceutical and Therapeutic Applications",coverURL:"https://cdn.intechopen.com/books/images_new/10799.jpg",slug:"phenolic-compounds-chemistry-synthesis-diversity-non-conventional-industrial-pharmaceutical-and-therapeutic-applications",publishedDate:"February 23rd 2022",editedByType:"Edited by",bookSignature:"Farid A. Badria",hash:"339199f254d2987ef3167eef74fb8a38",volumeInSeries:26,fullTitle:"Phenolic Compounds - Chemistry, Synthesis, Diversity, Non-Conventional Industrial, Pharmaceutical and Therapeutic Applications",editors:[{id:"41865",title:"Prof.",name:"Farid A.",middleName:null,surname:"Badria",slug:"farid-a.-badria",fullName:"Farid A. Badria",profilePictureURL:"https://mts.intechopen.com/storage/users/41865/images/system/41865.jpg",institutionString:"Mansoura University",institution:{name:"Mansoura University",institutionURL:null,country:{name:"Egypt"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9659",title:"Fibroblasts",subtitle:"Advances in Inflammation, Autoimmunity and Cancer",coverURL:"https://cdn.intechopen.com/books/images_new/9659.jpg",slug:"fibroblasts-advances-in-inflammation-autoimmunity-and-cancer",publishedDate:"December 22nd 2021",editedByType:"Edited by",bookSignature:"Mojca Frank Bertoncelj and Katja Lakota",hash:"926fa6446f6befbd363fc74971a56de2",volumeInSeries:25,fullTitle:"Fibroblasts - Advances in Inflammation, Autoimmunity and Cancer",editors:[{id:"328755",title:"Ph.D.",name:"Mojca",middleName:null,surname:"Frank Bertoncelj",slug:"mojca-frank-bertoncelj",fullName:"Mojca Frank Bertoncelj",profilePictureURL:"https://mts.intechopen.com/storage/users/328755/images/system/328755.jpg",institutionString:"BioMed X Institute",institution:{name:"University Hospital of Zurich",institutionURL:null,country:{name:"Switzerland"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"8977",title:"Protein Kinases",subtitle:"Promising Targets for Anticancer Drug Research",coverURL:"https://cdn.intechopen.com/books/images_new/8977.jpg",slug:"protein-kinases-promising-targets-for-anticancer-drug-research",publishedDate:"December 8th 2021",editedByType:"Edited by",bookSignature:"Rajesh Kumar Singh",hash:"6d200cc031706a565b554fdb1c478901",volumeInSeries:24,fullTitle:"Protein Kinases - Promising Targets for Anticancer Drug Research",editors:[{id:"329385",title:"Dr.",name:"Rajesh K.",middleName:"Kumar",surname:"Singh",slug:"rajesh-k.-singh",fullName:"Rajesh K. Singh",profilePictureURL:"https://mts.intechopen.com/storage/users/329385/images/system/329385.png",institutionString:"Punjab Technical University",institution:{name:"Punjab Technical University",institutionURL:null,country:{name:"India"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"8018",title:"Extracellular Matrix",subtitle:"Developments and Therapeutics",coverURL:"https://cdn.intechopen.com/books/images_new/8018.jpg",slug:"extracellular-matrix-developments-and-therapeutics",publishedDate:"October 27th 2021",editedByType:"Edited by",bookSignature:"Rama Sashank Madhurapantula, Joseph Orgel P.R.O. and Zvi Loewy",hash:"c85e82851e80b40282ff9be99ddf2046",volumeInSeries:23,fullTitle:"Extracellular Matrix - Developments and Therapeutics",editors:[{id:"212416",title:"Dr.",name:"Rama Sashank",middleName:null,surname:"Madhurapantula",slug:"rama-sashank-madhurapantula",fullName:"Rama Sashank Madhurapantula",profilePictureURL:"https://mts.intechopen.com/storage/users/212416/images/system/212416.jpg",institutionString:"Illinois Institute of Technology",institution:{name:"Illinois Institute of Technology",institutionURL:null,country:{name:"United States of America"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},subseriesFiltersForPublishedBooks:[{group:"subseries",caption:"Proteomics",value:18,count:4},{group:"subseries",caption:"Metabolism",value:17,count:6},{group:"subseries",caption:"Cell and Molecular Biology",value:14,count:9},{group:"subseries",caption:"Chemical Biology",value:15,count:14}],publicationYearFilters:[{group:"publicationYear",caption:"2022",value:2022,count:9},{group:"publicationYear",caption:"2021",value:2021,count:7},{group:"publicationYear",caption:"2020",value:2020,count:12},{group:"publicationYear",caption:"2019",value:2019,count:3},{group:"publicationYear",caption:"2018",value:2018,count:2}],authors:{paginationCount:148,paginationItems:[{id:"165328",title:"Dr.",name:"Vahid",middleName:null,surname:"Asadpour",slug:"vahid-asadpour",fullName:"Vahid Asadpour",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/165328/images/system/165328.jpg",biography:"Vahid Asadpour, MS, Ph.D., is currently with the Department of Research and Evaluation, Kaiser Permanente Southern California. He has both an MS and Ph.D. in Biomedical Engineering. He was previously a research scientist at the University of California Los Angeles (UCLA) and visiting professor and researcher at the University of North Dakota. He is currently working in artificial intelligence and its applications in medical signal processing. In addition, he is using digital signal processing in medical imaging and speech processing. Dr. Asadpour has developed brain-computer interfacing algorithms and has published books, book chapters, and several journal and conference papers in this field and other areas of intelligent signal processing. He has also designed medical devices, including a laser Doppler monitoring system.",institutionString:"Kaiser Permanente Southern California",institution:null},{id:"169608",title:"Prof.",name:"Marian",middleName:null,surname:"Găiceanu",slug:"marian-gaiceanu",fullName:"Marian Găiceanu",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/169608/images/system/169608.png",biography:"Prof. Dr. Marian Gaiceanu graduated from the Naval and Electrical Engineering Faculty, Dunarea de Jos University of Galati, Romania, in 1997. He received a Ph.D. (Magna Cum Laude) in Electrical Engineering in 2002. Since 2017, Dr. Gaiceanu has been a Ph.D. supervisor for students in Electrical Engineering. He has been employed at Dunarea de Jos University of Galati since 1996, where he is currently a professor. Dr. Gaiceanu is a member of the National Council for Attesting Titles, Diplomas and Certificates, an expert of the Executive Agency for Higher Education, Research Funding, and a member of the Senate of the Dunarea de Jos University of Galati. He has been the head of the Integrated Energy Conversion Systems and Advanced Control of Complex Processes Research Center, Romania, since 2016. He has conducted several projects in power converter systems for electrical drives, power quality, PEM and SOFC fuel cell power converters for utilities, electric vehicles, and marine applications with the Department of Regulation and Control, SIEI S.pA. (2002–2004) and the Polytechnic University of Turin, Italy (2002–2004, 2006–2007). He is a member of the Institute of Electrical and Electronics Engineers (IEEE) and cofounder-member of the IEEE Power Electronics Romanian Chapter. He is a guest editor at Energies and an academic book editor for IntechOpen. He is also a member of the editorial boards of the Journal of Electrical Engineering, Electronics, Control and Computer Science and Sustainability. Dr. Gaiceanu has been General Chairman of the IEEE International Symposium on Electrical and Electronics Engineering in the last six editions.",institutionString:'"Dunarea de Jos" University of Galati',institution:{name:'"Dunarea de Jos" University of Galati',country:{name:"Romania"}}},{id:"4519",title:"Prof.",name:"Jaydip",middleName:null,surname:"Sen",slug:"jaydip-sen",fullName:"Jaydip Sen",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/4519/images/system/4519.jpeg",biography:"Jaydip Sen is associated with Praxis Business School, Kolkata, India, as a professor in the Department of Data Science. His research areas include security and privacy issues in computing and communication, intrusion detection systems, machine learning, deep learning, and artificial intelligence in the financial domain. He has more than 200 publications in reputed international journals, refereed conference proceedings, and 20 book chapters in books published by internationally renowned publishing houses, such as Springer, CRC press, IGI Global, etc. Currently, he is serving on the editorial board of the prestigious journal Frontiers in Communications and Networks and in the technical program committees of a number of high-ranked international conferences organized by the IEEE, USA, and the ACM, USA. He has been listed among the top 2% of scientists in the world for the last three consecutive years, 2019 to 2021 as per studies conducted by the Stanford University, USA.",institutionString:"Praxis Business School",institution:null},{id:"320071",title:"Dr.",name:"Sidra",middleName:null,surname:"Mehtab",slug:"sidra-mehtab",fullName:"Sidra Mehtab",position:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y00002v6KHoQAM/Profile_Picture_1584512086360",biography:"Sidra Mehtab has completed her BS with honors in Physics from Calcutta University, India in 2018. She has done MS in Data Science and Analytics from Maulana Abul Kalam Azad University of Technology (MAKAUT), Kolkata, India in 2020. Her research areas include Econometrics, Time Series Analysis, Machine Learning, Deep Learning, Artificial Intelligence, and Computer and Network Security with a particular focus on Cyber Security Analytics. Ms. Mehtab has published seven papers in international conferences and one of her papers has been accepted for publication in a reputable international journal. She has won the best paper awards in two prestigious international conferences – BAICONF 2019, and ICADCML 2021, organized in the Indian Institute of Management, Bangalore, India in December 2019, and SOA University, Bhubaneswar, India in January 2021. Besides, Ms. Mehtab has also published two book chapters in two books. Seven of her book chapters will be published in a volume shortly in 2021 by Cambridge Scholars’ Press, UK. Currently, she is working as the joint editor of two edited volumes on Time Series Analysis and Forecasting to be published in the first half of 2021 by an international house. Currently, she is working as a Data Scientist with an MNC in Delhi, India.",institutionString:"NSHM College of Management and Technology",institution:{name:"Association for Computing Machinery",country:{name:"United States of America"}}},{id:"226240",title:"Dr.",name:"Andri Irfan",middleName:null,surname:"Rifai",slug:"andri-irfan-rifai",fullName:"Andri Irfan Rifai",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/226240/images/7412_n.jpg",biography:"Andri IRFAN is a Senior Lecturer of Civil Engineering and Planning. He completed the PhD at the Universitas Indonesia & Universidade do Minho with Sandwich Program Scholarship from the Directorate General of Higher Education and LPDP scholarship. He has been teaching for more than 19 years and much active to applied his knowledge in the project construction in Indonesia. His research interest ranges from pavement management system to advanced data mining techniques for transportation engineering. He has published more than 50 papers in journals and 2 books.",institutionString:null,institution:{name:"Universitas Internasional Batam",country:{name:"Indonesia"}}},{id:"314576",title:"Dr.",name:"Ibai",middleName:null,surname:"Laña",slug:"ibai-lana",fullName:"Ibai Laña",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/314576/images/system/314576.jpg",biography:"Dr. Ibai Laña works at TECNALIA as a data analyst. He received his Ph.D. in Artificial Intelligence from the University of the Basque Country (UPV/EHU), Spain, in 2018. He is currently a senior researcher at TECNALIA. His research interests fall within the intersection of intelligent transportation systems, machine learning, traffic data analysis, and data science. He has dealt with urban traffic forecasting problems, applying machine learning models and evolutionary algorithms. He has experience in origin-destination matrix estimation or point of interest and trajectory detection. Working with large volumes of data has given him a good command of big data processing tools and NoSQL databases. He has also been a visiting scholar at the Knowledge Engineering and Discovery Research Institute, Auckland University of Technology.",institutionString:"TECNALIA Research & Innovation",institution:{name:"Tecnalia",country:{name:"Spain"}}},{id:"314575",title:"Dr.",name:"Jesus",middleName:null,surname:"L. Lobo",slug:"jesus-l.-lobo",fullName:"Jesus L. Lobo",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/314575/images/system/314575.png",biography:"Dr. Jesús López is currently based in Bilbao (Spain) working at TECNALIA as Artificial Intelligence Research Scientist. In most cases, a project idea or a new research line needs to be investigated to see if it is good enough to take into production or to focus on it. That is exactly what he does, diving into Machine Learning algorithms and technologies to help TECNALIA to decide whether something is great in theory or will actually impact on the product or processes of its projects. So, he is expert at framing experiments, developing hypotheses, and proving whether they’re true or not, in order to investigate fundamental problems with a longer time horizon. He is also able to design and develop PoCs and system prototypes in simulation. He has participated in several national and internacional R&D projects.\n\nAs another relevant part of his everyday research work, he usually publishes his findings in reputed scientific refereed journals and international conferences, occasionally acting as reviewer and Programme Commitee member. Concretely, since 2018 he has published 9 JCR (8 Q1) journal papers, 9 conference papers (e.g. ECML PKDD 2021), and he has co-edited a book. He is also active in popular science writing data science stories for reputed blogs (KDNuggets, TowardsDataScience, Naukas). Besides, he has recently embarked on mentoring programmes as mentor, and has also worked as data science trainer.",institutionString:"TECNALIA Research & Innovation",institution:{name:"Tecnalia",country:{name:"Spain"}}},{id:"103779",title:"Prof.",name:"Yalcin",middleName:null,surname:"Isler",slug:"yalcin-isler",fullName:"Yalcin Isler",position:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRyQ8QAK/Profile_Picture_1628834958734",biography:"Yalcin Isler (1971 - Burdur / Turkey) received the B.Sc. degree in the Department of Electrical and Electronics Engineering from Anadolu University, Eskisehir, Turkey, in 1993, the M.Sc. degree from the Department of Electronics and Communication Engineering, Suleyman Demirel University, Isparta, Turkey, in 1996, the Ph.D. degree from the Department of Electrical and Electronics Engineering, Dokuz Eylul University, Izmir, Turkey, in 2009, and the Competence of Associate Professorship from the Turkish Interuniversity Council in 2019.\n\nHe was Lecturer at Burdur Vocational School in Suleyman Demirel University (1993-2000, Burdur / Turkey), Software Engineer (2000-2002, Izmir / Turkey), Research Assistant in Bulent Ecevit University (2002-2003, Zonguldak / Turkey), Research Assistant in Dokuz Eylul University (2003-2010, Izmir / Turkey), Assistant Professor at the Department of Electrical and Electronics Engineering in Bulent Ecevit University (2010-2012, Zonguldak / Turkey), Assistant Professor at the Department of Biomedical Engineering in Izmir Katip Celebi University (2012-2019, Izmir / Turkey). He is an Associate Professor at the Department of Biomedical Engineering at Izmir Katip Celebi University, Izmir / Turkey, since 2019. In addition to academics, he has also founded Islerya Medical and Information Technologies Company, Izmir / Turkey, since 2017.\n\nHis main research interests cover biomedical signal processing, pattern recognition, medical device design, programming, and embedded systems. He has many scientific papers and participated in several projects in these study fields. He was an IEEE Student Member (2009-2011) and IEEE Member (2011-2014) and has been IEEE Senior Member since 2014.",institutionString:null,institution:{name:"Izmir Kâtip Çelebi University",country:{name:"Turkey"}}},{id:"339677",title:"Dr.",name:"Mrinmoy",middleName:null,surname:"Roy",slug:"mrinmoy-roy",fullName:"Mrinmoy Roy",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/339677/images/16768_n.jpg",biography:"An accomplished Sales & Marketing professional with 12 years of cross-functional experience in well-known organisations such as CIPLA, LUPIN, GLENMARK, ASTRAZENECA across different segment of Sales & Marketing, International Business, Institutional Business, Product Management, Strategic Marketing of HIV, Oncology, Derma, Respiratory, Anti-Diabetic, Nutraceutical & Stomatological Product Portfolio and Generic as well as Chronic Critical Care Portfolio. A First Class MBA in International Business & Strategic Marketing, B.Pharm, D.Pharm, Google Certified Digital Marketing Professional. Qualified PhD Candidate in Operations and Management with special focus on Artificial Intelligence and Machine Learning adoption, analysis and use in Healthcare, Hospital & Pharma Domain. Seasoned with diverse therapy area of Pharmaceutical Sales & Marketing ranging from generating revenue through generating prescriptions, launching new products, and making them big brands with continuous strategy execution at the Physician and Patients level. Moved from Sales to Marketing and Business Development for 3.5 years in South East Asian Market operating from Manila, Philippines. Came back to India and handled and developed Brands such as Gluconorm, Lupisulin, Supracal, Absolut Woman, Hemozink, Fabiflu (For COVID 19), and many more. In my previous assignment I used to develop and execute strategies on Sales & Marketing, Commercialization & Business Development for Institution and Corporate Hospital Business portfolio of Oncology Therapy Area for AstraZeneca Pharma India Ltd. Being a Research Scholar and Student of ‘Operations Research & Management: Artificial Intelligence’ I published several pioneer research papers and book chapters on the same in Internationally reputed journals and Books indexed in Scopus, Springer and Ei Compendex, Google Scholar etc. Currently, I am launching PGDM Pharmaceutical Management Program in IIHMR Bangalore and spearheading the course curriculum and structure of the same. I am interested in Collaboration for Healthcare Innovation, Pharma AI Innovation, Future trend in Marketing and Management with incubation on Healthcare, Healthcare IT startups, AI-ML Modelling and Healthcare Algorithm based training module development. I am also an affiliated member of the Institute of Management Consultant of India, looking forward to Healthcare, Healthcare IT and Innovation, Pharma and Hospital Management Consulting works.",institutionString:null,institution:{name:"Lovely Professional University",country:{name:"India"}}},{id:"310576",title:"Prof.",name:"Erick Giovani",middleName:null,surname:"Sperandio Nascimento",slug:"erick-giovani-sperandio-nascimento",fullName:"Erick Giovani Sperandio Nascimento",position:null,profilePictureURL:"https://intech-files.s3.amazonaws.com/0033Y00002pDKxDQAW/ProfilePicture%202022-06-20%2019%3A57%3A24.788",biography:"Prof. Erick Sperandio is the Lead Researcher and professor of Artificial Intelligence (AI) at SENAI CIMATEC, Bahia, Brazil, also working with Computational Modeling (CM) and HPC. He holds a PhD in Environmental Engineering in the area of Atmospheric Computational Modeling, a Master in Informatics in the field of Computational Intelligence and Graduated in Computer Science from UFES. He currently coordinates, leads and participates in R&D projects in the areas of AI, computational modeling and supercomputing applied to different areas such as Oil and Gas, Health, Advanced Manufacturing, Renewable Energies and Atmospheric Sciences, advising undergraduate, master's and doctoral students. He is the Lead Researcher at SENAI CIMATEC's Reference Center on Artificial Intelligence. In addition, he is a Certified Instructor and University Ambassador of the NVIDIA Deep Learning Institute (DLI) in the areas of Deep Learning, Computer Vision, Natural Language Processing and Recommender Systems, and Principal Investigator of the NVIDIA/CIMATEC AI Joint Lab, the first in Latin America within the NVIDIA AI Technology Center (NVAITC) worldwide program. He also works as a researcher at the Supercomputing Center for Industrial Innovation (CS2i) and at the SENAI Institute of Innovation for Automation (ISI Automação), both from SENAI CIMATEC. He is a member and vice-coordinator of the Basic Board of Scientific-Technological Advice and Evaluation, in the area of Innovation, of the Foundation for Research Support of the State of Bahia (FAPESB). He serves as Technology Transfer Coordinator and one of the Principal Investigators at the National Applied Research Center in Artificial Intelligence (CPA-IA) of SENAI CIMATEC, focusing on Industry, being one of the six CPA-IA in Brazil approved by MCTI / FAPESP / CGI.br. He also participates as one of the representatives of Brazil in the BRICS Innovation Collaboration Working Group on HPC, ICT and AI. He is the coordinator of the Work Group of the Axis 5 - Workforce and Training - of the Brazilian Strategy for Artificial Intelligence (EBIA), and member of the MCTI/EMBRAPII AI Innovation Network Training Committee. He is the coordinator, by SENAI CIMATEC, of the Artificial Intelligence Reference Network of the State of Bahia (REDE BAH.IA). He leads the working group of experts representing Brazil in the Global Partnership on Artificial Intelligence (GPAI), on the theme \"AI and the Pandemic Response\".",institutionString:"Manufacturing and Technology Integrated Campus – SENAI CIMATEC",institution:null},{id:"1063",title:"Prof.",name:"Constantin",middleName:null,surname:"Volosencu",slug:"constantin-volosencu",fullName:"Constantin Volosencu",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/1063/images/system/1063.png",biography:"Prof. Dr. Constantin Voloşencu graduated as an engineer from\nPolitehnica University of Timișoara, Romania, where he also\nobtained a doctorate degree. He is currently a full professor in\nthe Department of Automation and Applied Informatics at the\nsame university. Dr. Voloşencu is the author of ten books, seven\nbook chapters, and more than 160 papers published in journals\nand conference proceedings. He has also edited twelve books and\nhas twenty-seven patents to his name. He is a manager of research grants, editor in\nchief and member of international journal editorial boards, a former plenary speaker, a member of scientific committees, and chair at international conferences. His\nresearch is in the fields of control systems, control of electric drives, fuzzy control\nsystems, neural network applications, fault detection and diagnosis, sensor network\napplications, monitoring of distributed parameter systems, and power ultrasound\napplications. He has developed automation equipment for machine tools, spooling\nmachines, high-power ultrasound processes, and more.",institutionString:'"Politechnica" University Timişoara',institution:null},{id:"221364",title:"Dr.",name:"Eneko",middleName:null,surname:"Osaba",slug:"eneko-osaba",fullName:"Eneko Osaba",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/221364/images/system/221364.jpg",biography:"Dr. Eneko Osaba works at TECNALIA as a senior researcher. He obtained his Ph.D. in Artificial Intelligence in 2015. He has participated in more than twenty-five local and European research projects, and in the publication of more than 130 papers. He has performed several stays at universities in the United Kingdom, Italy, and Malta. Dr. Osaba has served as a program committee member in more than forty international conferences and participated in organizing activities in more than ten international conferences. He is a member of the editorial board of the International Journal of Artificial Intelligence, Data in Brief, and Journal of Advanced Transportation. He is also a guest editor for the Journal of Computational Science, Neurocomputing, Swarm, and Evolutionary Computation and IEEE ITS Magazine.",institutionString:"TECNALIA Research & Innovation",institution:{name:"Tecnalia",country:{name:"Spain"}}},{id:"275829",title:"Dr.",name:"Esther",middleName:null,surname:"Villar-Rodriguez",slug:"esther-villar-rodriguez",fullName:"Esther Villar-Rodriguez",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/275829/images/system/275829.jpg",biography:"Dr. Esther Villar obtained a Ph.D. in Information and Communication Technologies from the University of Alcalá, Spain, in 2015. She obtained a degree in Computer Science from the University of Deusto, Spain, in 2010, and an MSc in Computer Languages and Systems from the National University of Distance Education, Spain, in 2012. Her areas of interest and knowledge include natural language processing (NLP), detection of impersonation in social networks, semantic web, and machine learning. Dr. Esther Villar made several contributions at conferences and publishing in various journals in those fields. Currently, she is working within the OPTIMA (Optimization Modeling & Analytics) business of TECNALIA’s ICT Division as a data scientist in projects related to the prediction and optimization of management and industrial processes (resource planning, energy efficiency, etc).",institutionString:"TECNALIA Research & Innovation",institution:{name:"Tecnalia",country:{name:"Spain"}}},{id:"49813",title:"Dr.",name:"Javier",middleName:null,surname:"Del Ser",slug:"javier-del-ser",fullName:"Javier Del Ser",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/49813/images/system/49813.png",biography:"Prof. Dr. Javier Del Ser received his first PhD in Telecommunication Engineering (Cum Laude) from the University of Navarra, Spain, in 2006, and a second PhD in Computational Intelligence (Summa Cum Laude) from the University of Alcala, Spain, in 2013. He is currently a principal researcher in data analytics and optimisation at TECNALIA (Spain), a visiting fellow at the Basque Center for Applied Mathematics (BCAM) and a part-time lecturer at the University of the Basque Country (UPV/EHU). His research interests gravitate on the use of descriptive, prescriptive and predictive algorithms for data mining and optimization in a diverse range of application fields such as Energy, Transport, Telecommunications, Health and Industry, among others. In these fields he has published more than 240 articles, co-supervised 8 Ph.D. theses, edited 6 books, coauthored 7 patents and participated/led more than 40 research projects. He is a Senior Member of the IEEE, and a recipient of the Biscay Talent prize for his academic career.",institutionString:"Tecnalia Research & Innovation",institution:{name:"Tecnalia",country:{name:"Spain"}}},{id:"278948",title:"Dr.",name:"Carlos Pedro",middleName:null,surname:"Gonçalves",slug:"carlos-pedro-goncalves",fullName:"Carlos Pedro Gonçalves",position:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRcmyQAC/Profile_Picture_1564224512145",biography:'Carlos Pedro Gonçalves (PhD) is an Associate Professor at Lusophone University of Humanities and Technologies and a researcher on Complexity Sciences, Quantum Technologies, Artificial Intelligence, Strategic Studies, Studies in Intelligence and Security, FinTech and Financial Risk Modeling. He is also a progammer with programming experience in:\n\nA) Quantum Computing using Qiskit Python module and IBM Quantum Experience Platform, with software developed on the simulation of Quantum Artificial Neural Networks and Quantum Cybersecurity;\n\nB) Artificial Intelligence and Machine learning programming in Python;\n\nC) Artificial Intelligence, Multiagent Systems Modeling and System Dynamics Modeling in Netlogo, with models developed in the areas of Chaos Theory, Econophysics, Artificial Intelligence, Classical and Quantum Complex Systems Science, with the Econophysics models having been cited worldwide and incorporated in PhD programs by different Universities.\n\nReceived an Arctic Code Vault Contributor status by GitHub, due to having developed open source software preserved in the \\"Arctic Code Vault\\" for future generations (https://archiveprogram.github.com/arctic-vault/), with the Strategy Analyzer A.I. module for decision making support (based on his PhD thesis, used in his Classes on Decision Making and in Strategic Intelligence Consulting Activities) and QNeural Python Quantum Neural Network simulator also preserved in the \\"Arctic Code Vault\\", for access to these software modules see: https://github.com/cpgoncalves. He is also a peer reviewer with outsanding review status from Elsevier journals, including Physica A, Neurocomputing and Engineering Applications of Artificial Intelligence. Science CV available at: https://www.cienciavitae.pt//pt/8E1C-A8B3-78C5 and ORCID: https://orcid.org/0000-0002-0298-3974',institutionString:"University of Lisbon",institution:{name:"Universidade Lusófona",country:{name:"Portugal"}}},{id:"241400",title:"Prof.",name:"Mohammed",middleName:null,surname:"Bsiss",slug:"mohammed-bsiss",fullName:"Mohammed Bsiss",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/241400/images/8062_n.jpg",biography:null,institutionString:null,institution:null},{id:"276128",title:"Dr.",name:"Hira",middleName:null,surname:"Fatima",slug:"hira-fatima",fullName:"Hira Fatima",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/276128/images/14420_n.jpg",biography:"Dr. Hira Fatima\nAssistant Professor\nDepartment of Mathematics\nInstitute of Applied Science\nMangalayatan University, Aligarh\nMobile: no : 8532041179\nhirafatima2014@gmal.com\n\nDr. Hira Fatima has received his Ph.D. degree in pure Mathematics from Aligarh Muslim University, Aligarh India. Currently working as an Assistant Professor in the Department of Mathematics, Institute of Applied Science, Mangalayatan University, Aligarh. She taught so many courses of Mathematics of UG and PG level. Her research Area of Expertise is Functional Analysis & Sequence Spaces. She has been working on Ideal Convergence of double sequence. She has published 17 research papers in National and International Journals including Cogent Mathematics, Filomat, Journal of Intelligent and Fuzzy Systems, Advances in Difference Equations, Journal of Mathematical Analysis, Journal of Mathematical & Computer Science etc. She has also reviewed few research papers for the and international journals. She is a member of Indian Mathematical Society.",institutionString:null,institution:null},{id:"414880",title:"Dr.",name:"Maryam",middleName:null,surname:"Vatankhah",slug:"maryam-vatankhah",fullName:"Maryam Vatankhah",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Borough of Manhattan Community College",country:{name:"United States of America"}}},{id:"414879",title:"Prof.",name:"Mohammad-Reza",middleName:null,surname:"Akbarzadeh-Totonchi",slug:"mohammad-reza-akbarzadeh-totonchi",fullName:"Mohammad-Reza Akbarzadeh-Totonchi",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Ferdowsi University of Mashhad",country:{name:"Iran"}}},{id:"414878",title:"Prof.",name:"Reza",middleName:null,surname:"Fazel-Rezai",slug:"reza-fazel-rezai",fullName:"Reza Fazel-Rezai",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"American Public University System",country:{name:"United States of America"}}},{id:"426586",title:"Dr.",name:"Oladunni A.",middleName:null,surname:"Daramola",slug:"oladunni-a.-daramola",fullName:"Oladunni A. Daramola",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Federal University of Technology",country:{name:"Nigeria"}}},{id:"357014",title:"Prof.",name:"Leon",middleName:null,surname:"Bobrowski",slug:"leon-bobrowski",fullName:"Leon Bobrowski",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Bialystok University of Technology",country:{name:"Poland"}}},{id:"302698",title:"Dr.",name:"Yao",middleName:null,surname:"Shan",slug:"yao-shan",fullName:"Yao Shan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Dalian University of Technology",country:{name:"China"}}},{id:"354126",title:"Dr.",name:"Setiawan",middleName:null,surname:"Hadi",slug:"setiawan-hadi",fullName:"Setiawan Hadi",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Padjadjaran University",country:{name:"Indonesia"}}},{id:"125911",title:"Prof.",name:"Jia-Ching",middleName:null,surname:"Wang",slug:"jia-ching-wang",fullName:"Jia-Ching Wang",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"National Central University",country:{name:"Taiwan"}}},{id:"332603",title:"Prof.",name:"Kumar S.",middleName:null,surname:"Ray",slug:"kumar-s.-ray",fullName:"Kumar S. Ray",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Indian Statistical Institute",country:{name:"India"}}},{id:"415409",title:"Prof.",name:"Maghsoud",middleName:null,surname:"Amiri",slug:"maghsoud-amiri",fullName:"Maghsoud Amiri",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Allameh Tabataba'i University",country:{name:"Iran"}}},{id:"357085",title:"Mr.",name:"P. Mohan",middleName:null,surname:"Anand",slug:"p.-mohan-anand",fullName:"P. Mohan Anand",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Indian Institute of Technology Kanpur",country:{name:"India"}}},{id:"356696",title:"Ph.D. Student",name:"P.V.",middleName:null,surname:"Sai Charan",slug:"p.v.-sai-charan",fullName:"P.V. Sai Charan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Indian Institute of Technology Kanpur",country:{name:"India"}}},{id:"357086",title:"Prof.",name:"Sandeep K.",middleName:null,surname:"Shukla",slug:"sandeep-k.-shukla",fullName:"Sandeep K. Shukla",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Indian Institute of Technology Kanpur",country:{name:"India"}}}]}},subseries:{item:{id:"1",type:"subseries",title:"Oral Health",keywords:"Oral Health, Dental Care, Diagnosis, Diagnostic Imaging, Early Diagnosis, Oral Cancer, Conservative Treatment, Epidemiology, Comprehensive Dental Care, Complementary Therapies, Holistic Health",scope:"\r\n\tThis topic aims to provide a comprehensive overview of the latest trends in Oral Health based on recent scientific evidence. Subjects will include an overview of oral diseases and infections, systemic diseases affecting the oral cavity, prevention, diagnosis, treatment, epidemiology, as well as current clinical recommendations for the management of oral, dental, and periodontal diseases.
",coverUrl:"https://cdn.intechopen.com/series_topics/covers/1.jpg",hasOnlineFirst:!0,hasPublishedBooks:!0,annualVolume:11397,editor:{id:"173955",title:"Prof.",name:"Sandra",middleName:null,surname:"Marinho",slug:"sandra-marinho",fullName:"Sandra Marinho",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRGYMQA4/Profile_Picture_2022-06-01T13:22:41.png",biography:"Dr. Sandra A. Marinho is an Associate Professor and Brazilian researcher at the State University of Paraíba (Universidade Estadual da Paraíba- UEPB), Campus VIII, located in Araruna, state of Paraíba since 2011. She holds a degree in Dentistry from the Federal University of Alfenas (UNIFAL), while her specialization and professional improvement in Stomatology took place at Hospital Heliopolis (São Paulo, SP). Her qualifications are: a specialist in Dental Imaging and Radiology, Master in Dentistry (Periodontics) from the University of São Paulo (FORP-USP, Ribeirão Preto, SP), and Doctor (Ph.D.) in Dentistry (Stomatology Clinic) from Hospital São Lucas of the Pontifical Catholic University of Rio Grande do Sul (HSL-PUCRS, Porto Alegre, RS). She held a postdoctoral internship at the Federal University from Jequitinhonha and Mucuri Valleys (UFVJM, Diamantina, MG). She is currently a member of the Brazilian Society for Dental Research (SBPqO) and the Brazilian Society of Stomatology and Pathology (SOBEP). Dr. Marinho's experience in Dentistry mainly covers the following subjects: oral diagnosis, oral radiology; oral medicine; lesions and oral infections; oral pathology, laser therapy and epidemiological studies.",institutionString:null,institution:{name:"State University of Paraíba",institutionURL:null,country:{name:"Brazil"}}},editorTwo:null,editorThree:null,series:{id:"3",title:"Dentistry",doi:"10.5772/intechopen.71199",issn:"2631-6218"},editorialBoard:[{id:"267724",title:"Prof.",name:"Febronia",middleName:null,surname:"Kahabuka",slug:"febronia-kahabuka",fullName:"Febronia Kahabuka",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRZpJQAW/Profile_Picture_2022-06-27T12:00:42.JPG",institutionString:"Muhimbili University of Health and Allied Sciences, Tanzania",institution:{name:"Muhimbili University of Health and Allied Sciences",institutionURL:null,country:{name:"Tanzania"}}},{id:"70530",title:"Dr.",name:"Márcio",middleName:"Campos",surname:"Oliveira",slug:"marcio-oliveira",fullName:"Márcio Oliveira",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRm0AQAS/Profile_Picture_2022-08-01T12:34:46.jpg",institutionString:null,institution:{name:"State University of Feira de Santana",institutionURL:null,country:{name:"Brazil"}}}]},onlineFirstChapters:{paginationCount:26,paginationItems:[{id:"83087",title:"Role of Cellular Responses in Periodontal Tissue Destruction",doi:"10.5772/intechopen.106645",signatures:"Nam Cong-Nhat Huynh",slug:"role-of-cellular-responses-in-periodontal-tissue-destruction",totalDownloads:8,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Periodontology - New Insights",coverURL:"https://cdn.intechopen.com/books/images_new/11566.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"82654",title:"Atraumatic Restorative Treatment: More than a Minimally Invasive Approach?",doi:"10.5772/intechopen.105623",signatures:"Manal A. Ablal",slug:"atraumatic-restorative-treatment-more-than-a-minimally-invasive-approach",totalDownloads:4,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Caries - The Selection of Restoration Methods and Restorative Materials",coverURL:"https://cdn.intechopen.com/books/images_new/11565.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"82735",title:"The Influence of Salivary pH on the Prevalence of Dental Caries",doi:"10.5772/intechopen.106154",signatures:"Laura-Cristina Rusu, Alexandra Roi, Ciprian-Ioan Roi, Codruta Victoria Tigmeanu and Lavinia Cosmina Ardelean",slug:"the-influence-of-salivary-ph-on-the-prevalence-of-dental-caries",totalDownloads:12,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Caries - The Selection of Restoration Methods and Restorative Materials",coverURL:"https://cdn.intechopen.com/books/images_new/11565.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"82357",title:"Caries Management Aided by Fluorescence-Based Devices",doi:"10.5772/intechopen.105567",signatures:"Atena Galuscan, Daniela Jumanca and Aurora Doris Fratila",slug:"caries-management-aided-by-fluorescence-based-devices",totalDownloads:6,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Caries - The Selection of Restoration Methods and Restorative Materials",coverURL:"https://cdn.intechopen.com/books/images_new/11565.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"81894",title:"Diet and Nutrition and Their Relationship with Early Childhood Dental Caries",doi:"10.5772/intechopen.105123",signatures:"Luanna Gonçalves Ferreira, Giuliana de Campos Chaves Lamarque and Francisco Wanderley Garcia Paula-Silva",slug:"diet-and-nutrition-and-their-relationship-with-early-childhood-dental-caries",totalDownloads:20,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Dental Caries - The Selection of Restoration Methods and Restorative Materials",coverURL:"https://cdn.intechopen.com/books/images_new/11565.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"80964",title:"Upper Airway Expansion in Disabled Children",doi:"10.5772/intechopen.102830",signatures:"David Andrade, Joana Andrade, Maria-João Palha, Cristina Areias, Paula Macedo, Ana Norton, Miguel Palha, Lurdes Morais, Dóris Rocha Ruiz and Sônia Groisman",slug:"upper-airway-expansion-in-disabled-children",totalDownloads:44,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"80839",title:"Herbs and Oral Health",doi:"10.5772/intechopen.103715",signatures:"Zuhair S. Natto",slug:"herbs-and-oral-health",totalDownloads:70,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"80441",title:"Periodontitis and Heart Disease: Current Perspectives on the Associative Relationships and Preventive Impact",doi:"10.5772/intechopen.102669",signatures:"Alexandra Roman, Andrada Soancă, Bogdan Caloian, Alexandru Bucur, Gabriela Valentina Caracostea, Andreia Paraschiva Preda, Dora Maria Popescu, Iulia Cristina Micu, Petra Șurlin, Andreea Ciurea, Diana Oneț, Mircea Viorel Ciurea, Dragoș Alexandru Țermure and Marius Negucioiu",slug:"periodontitis-and-heart-disease-current-perspectives-on-the-associative-relationships-and-preventive",totalDownloads:66,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79498",title:"Oral Aspects and Dental Management of Special Needs Patient",doi:"10.5772/intechopen.101067",signatures:"Pinar Kiymet Karataban",slug:"oral-aspects-and-dental-management-of-special-needs-patient",totalDownloads:116,totalCrossrefCites:0,totalDimensionsCites:0,authors:[{name:"Pinar",surname:"Karataban"}],book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79699",title:"Metabolomics Distinction of Cigarette Smokers from Non-Smokers Using Non-Stationary Benchtop Nuclear Magnetic Resonance (NMR) Analysis of Human Saliva",doi:"10.5772/intechopen.101414",signatures:"Benita C. Percival, Angela Wann, Sophie Taylor, Mark Edgar, Miles Gibson and Martin Grootveld",slug:"metabolomics-distinction-of-cigarette-smokers-from-non-smokers-using-non-stationary-benchtop-nuclear",totalDownloads:56,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"80295",title:"Preventive Methods and Treatments of White Spot Lesions in Orthodontics",doi:"10.5772/intechopen.102064",signatures:"Elif Nadide Akay",slug:"preventive-methods-and-treatments-of-white-spot-lesions-in-orthodontics",totalDownloads:89,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79876",title:"Management and Prevention Strategies for Treating Dentine Hypersensitivity",doi:"10.5772/intechopen.101495",signatures:"David G. Gillam",slug:"management-and-prevention-strategies-for-treating-dentine-hypersensitivity",totalDownloads:94,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"80020",title:"Alternative Denture Base Materials for Allergic Patients",doi:"10.5772/intechopen.101956",signatures:"Lavinia Cosmina Ardelean, Laura-Cristina Rusu and Codruta Victoria Tigmeanu",slug:"alternative-denture-base-materials-for-allergic-patients",totalDownloads:198,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79297",title:"Oral Health and Prevention in Older Adults",doi:"10.5772/intechopen.101043",signatures:"Irma Fabiola Díaz-García, Dinorah Munira Hernández-Santos, Julio Alberto Díaz-Ramos and Neyda Ma. Mendoza-Ruvalcaba",slug:"oral-health-and-prevention-in-older-adults",totalDownloads:113,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79903",title:"Molecular Docking of Phytochemicals against Streptococcus mutans Virulence Targets: A Proteomic Insight into Drug Planning",doi:"10.5772/intechopen.101506",signatures:"Diego Romário da Silva, Tahyná Duda Deps, Otavio Akira Souza Sakaguchi, Edja Maria Melo de Brito Costa, Carlus Alberto Oliveira dos Santos, Joanilda Paolla Raimundo e Silva, Bruna Dantas da Silva, Frederico Favaro Ribeiro, Francisco Jaime Bezerra Mendonça-Júnior and Andréa Cristina Barbosa da Silva",slug:"molecular-docking-of-phytochemicals-against-em-streptococcus-mutans-em-virulence-targets-a-proteomic",totalDownloads:114,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}},{id:"79754",title:"Evaluation of Trans-Resveratrol as a Treatment for Periodontitis",doi:"10.5772/intechopen.101477",signatures:"Tracey Lynn Harney",slug:"evaluation-of-trans-resveratrol-as-a-treatment-for-periodontitis",totalDownloads:112,totalCrossrefCites:1,totalDimensionsCites:1,authors:null,book:{title:"Oral Health Care - An Important Issue of the Modern Society",coverURL:"https://cdn.intechopen.com/books/images_new/10827.jpg",subseries:{id:"1",title:"Oral Health"}}}]},publishedBooks:{paginationCount:1,paginationItems:[{type:"book",id:"11392",title:"Leadership in a Changing World",subtitle:"A Multidimensional Perspective",coverURL:"https://cdn.intechopen.com/books/images_new/11392.jpg",slug:"leadership-in-a-changing-world-a-multidimensional-perspective",publishedDate:"May 11th 2022",editedByType:"Edited by",bookSignature:"Muhammad Mohiuddin, Bilal Khalid, Md. Samim Al Azad and Slimane Ed-dafali",hash:"86a6d33cf601587e591064ce92effc02",volumeInSeries:1,fullTitle:"Leadership in a Changing World - A Multidimensional Perspective",editors:[{id:"418514",title:"Dr.",name:"Muhammad",middleName:null,surname:"Mohiuddin",slug:"muhammad-mohiuddin",fullName:"Muhammad Mohiuddin",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y000038UqSfQAK/Profile_Picture_2022-05-13T10:39:03.jpg",institutionString:"Université Laval",institution:{name:"Université Laval",institutionURL:null,country:{name:"Canada"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},testimonialsList:[{id:"8",text:"I work with IntechOpen for a number of reasons: their professionalism, their mission in support of Open Access publishing, and the quality of their peer-reviewed publications, but also because they believe in equality.",author:{id:"202192",name:"Catrin",surname:"Rutland",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/202192/images/system/202192.png",slug:"catrin-rutland",institution:{id:"134",name:"University of Nottingham",country:{id:null,name:"United Kingdom"}}}},{id:"27",text:"The opportunity to work with a prestigious publisher allows for the possibility to collaborate with more research groups interested in animal nutrition, leading to the development of new feeding strategies and food valuation while being more sustainable with the environment, allowing more readers to learn about the subject.",author:{id:"175967",name:"Manuel",surname:"Gonzalez Ronquillo",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/175967/images/system/175967.png",slug:"manuel-gonzalez-ronquillo",institution:{id:"6221",name:"Universidad Autónoma del Estado de México",country:{id:null,name:"Mexico"}}}},{id:"18",text:"It was great publishing with IntechOpen, the process was straightforward and I had support all along.",author:{id:"71579",name:"Berend",surname:"Olivier",institutionString:"Utrecht University",profilePictureURL:"https://mts.intechopen.com/storage/users/71579/images/system/71579.png",slug:"berend-olivier",institution:{id:"253",name:"Utrecht University",country:{id:null,name:"Netherlands"}}}}]},submityourwork:{pteSeriesList:[{id:"14",title:"Artificial Intelligence",numberOfPublishedBooks:9,numberOfPublishedChapters:90,numberOfOpenTopics:6,numberOfUpcomingTopics:0,issn:"2633-1403",doi:"10.5772/intechopen.79920",isOpenForSubmission:!0},{id:"7",title:"Biomedical Engineering",numberOfPublishedBooks:12,numberOfPublishedChapters:108,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2631-5343",doi:"10.5772/intechopen.71985",isOpenForSubmission:!0}],lsSeriesList:[{id:"11",title:"Biochemistry",numberOfPublishedBooks:33,numberOfPublishedChapters:330,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2632-0983",doi:"10.5772/intechopen.72877",isOpenForSubmission:!0},{id:"25",title:"Environmental Sciences",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2754-6713",doi:"10.5772/intechopen.100362",isOpenForSubmission:!0},{id:"10",title:"Physiology",numberOfPublishedBooks:14,numberOfPublishedChapters:145,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-8261",doi:"10.5772/intechopen.72796",isOpenForSubmission:!0}],hsSeriesList:[{id:"3",title:"Dentistry",numberOfPublishedBooks:9,numberOfPublishedChapters:141,numberOfOpenTopics:2,numberOfUpcomingTopics:0,issn:"2631-6218",doi:"10.5772/intechopen.71199",isOpenForSubmission:!0},{id:"6",title:"Infectious Diseases",numberOfPublishedBooks:13,numberOfPublishedChapters:124,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-6188",doi:"10.5772/intechopen.71852",isOpenForSubmission:!0},{id:"13",title:"Veterinary Medicine and Science",numberOfPublishedBooks:11,numberOfPublishedChapters:112,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2632-0517",doi:"10.5772/intechopen.73681",isOpenForSubmission:!0}],sshSeriesList:[{id:"22",title:"Business, Management and Economics",numberOfPublishedBooks:1,numberOfPublishedChapters:22,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2753-894X",doi:"10.5772/intechopen.100359",isOpenForSubmission:!0},{id:"23",title:"Education and Human Development",numberOfPublishedBooks:0,numberOfPublishedChapters:11,numberOfOpenTopics:1,numberOfUpcomingTopics:1,issn:null,doi:"10.5772/intechopen.100360",isOpenForSubmission:!0},{id:"24",title:"Sustainable Development",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:5,numberOfUpcomingTopics:0,issn:"2753-6580",doi:"10.5772/intechopen.100361",isOpenForSubmission:!0}],subseriesList:[{id:"3",title:"Bacterial Infectious Diseases",scope:"