\r\n\tSynthetic zeolites can be formed from different raw materials and among these many wastes represent some interesting sources due to their chemical and mineralogical composition. Today, a large number of different types of waste resulting from many human activities are produced in the world (e.g. industrial, municipal, agricultural waste) and most of them are deposed of in landfills thus determining a great environmental problem.
\r\n\r\n\tThis book intends to provide the reader with a comprehensive overview of the current state-of-the-art on the possibility to transform the different types of waste materials into useful products, zeolites, through conventional processes and innovative methods. The aim is to demonstrate that waste can be a problem or a resource depending on how it is managed.
",isbn:"978-1-80356-426-5",printIsbn:"978-1-80356-425-8",pdfIsbn:"978-1-80356-427-2",doi:null,price:0,priceEur:0,priceUsd:0,slug:null,numberOfPages:0,isOpenForSubmission:!0,isSalesforceBook:!1,isNomenclature:!1,hash:"3ed0dfd842de9cd1143212415903e6ad",bookSignature:"Dr. Claudia Belviso",publishedDate:null,coverURL:"https://cdn.intechopen.com/books/images_new/11561.jpg",keywords:"Structure, Properties, Natural Material, Synthetic Product, Type, Composition, Production, Disposal, Hydrothermal Method, Pre-fusion Process, Sonication, Multiple Steps",numberOfDownloads:null,numberOfWosCitations:0,numberOfCrossrefCitations:null,numberOfDimensionsCitations:null,numberOfTotalCitations:null,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"February 25th 2022",dateEndSecondStepPublish:"March 25th 2022",dateEndThirdStepPublish:"May 24th 2022",dateEndFourthStepPublish:"August 12th 2022",dateEndFifthStepPublish:"October 11th 2022",dateConfirmationOfParticipation:null,remainingDaysToSecondStep:"5 months",secondStepPassed:!0,areRegistrationsClosed:!0,currentStepOfPublishingProcess:5,editedByType:null,kuFlag:!1,biosketch:"Since 2002, Dr. Claudia Belviso has been carrying out research activity in the field of mineralogy and geochemistry aimed at environmental protection. She is responsible for the research activity on zeolite synthesis from waste materials and natural sources which has allowed her to be the inventor of an International Patent, publish numerous scientific articles in peer-reviewed journals, and carry out scientific research in national and international projects.",coeditorOneBiosketch:null,coeditorTwoBiosketch:null,coeditorThreeBiosketch:null,coeditorFourBiosketch:null,coeditorFiveBiosketch:null,editors:[{id:"61457",title:"Dr.",name:"Claudia",middleName:null,surname:"Belviso",slug:"claudia-belviso",fullName:"Claudia Belviso",profilePictureURL:"https://mts.intechopen.com/storage/users/61457/images/system/61457.jpg",biography:"Claudia Belviso is a researcher at the Institute of Methodologies of Environmental Analysis (IMAA) of CNR. After graduating in Geological Sciences and qualifying as a professional geologist, she earned a Ph.D. in Earth Sciences. Since 2002 has been carrying out her research activity in the field of mineralogy and geochemistry aimed at environmental protection. She is responsible for the research activity on zeolite synthesis from waste materials and natural sources as well as their application to solving environmental problems and as new raw material. These research activities have allowed her to be the inventor of an International Patent, publish numerous scientific articles in peer-reviewed journals, participate in national and international conferences, take part in the organization of international congresses, and carry out scientific research in national and international projects.",institutionString:"National Research Council",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"1",totalChapterViews:"0",totalEditedBooks:"1",institution:{name:"National Research Council",institutionURL:null,country:{name:"Italy"}}}],coeditorOne:null,coeditorTwo:null,coeditorThree:null,coeditorFour:null,coeditorFive:null,topics:[{id:"8",title:"Chemistry",slug:"chemistry"}],chapters:null,productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},personalPublishingAssistant:{id:"453622",firstName:"Tea",lastName:"Jurcic",middleName:null,title:"Ms.",imageUrl:"//cdnintech.com/web/frontend/www/assets/author.svg",email:"tea@intechopen.com",biography:null}},relatedBooks:[{type:"book",id:"5306",title:"Zeolites",subtitle:"Useful Minerals",isOpenForSubmission:!1,hash:"eec7f864baf093058440c0f56072a7cf",slug:"zeolites-useful-minerals",bookSignature:"Claudia Belviso",coverURL:"https://cdn.intechopen.com/books/images_new/5306.jpg",editedByType:"Edited by",editors:[{id:"61457",title:"Dr.",name:"Claudia",surname:"Belviso",slug:"claudia-belviso",fullName:"Claudia Belviso"}],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"}},{type:"book",id:"872",title:"Organic Pollutants Ten Years After the Stockholm Convention",subtitle:"Environmental and Analytical Update",isOpenForSubmission:!1,hash:"f01dc7077e1d23f3d8f5454985cafa0a",slug:"organic-pollutants-ten-years-after-the-stockholm-convention-environmental-and-analytical-update",bookSignature:"Tomasz Puzyn and Aleksandra Mostrag-Szlichtyng",coverURL:"https://cdn.intechopen.com/books/images_new/872.jpg",editedByType:"Edited by",editors:[{id:"84887",title:"Dr.",name:"Tomasz",surname:"Puzyn",slug:"tomasz-puzyn",fullName:"Tomasz Puzyn"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},chapter:{item:{type:"chapter",id:"43117",title:"Plant Senescence and Nitrogen Mobilization and Signaling",doi:"10.5772/54392",slug:"plant-senescence-and-nitrogen-mobilization-and-signaling",body:'Very early during their reproductive phase, annual plants initiate the process of senescence. Monocarpic senescence describes the last steps in these plants’ development; senescence on organ level starts shortly after entering reproductive phase while after anthesis the whole plant undergoes senescence and dies.
In the following we will focus on leaf senescence. Two different processes can be distinguished in annual plants relying on different genetic programs. Before anthesis, sequential leaf senescence recycles nutrients from old to developing leaves which is mainly under the control of the growing apex and is arrested when no more new leaves develop and when the plant starts to flower and sets fruit. Monocarpic leaf senescence recovers valuable nutrients from the leaves during flower induction and anthesis to provide these to the developing reproductive organs [1, 2]. The latter is crucial for fruit and seed development and has a major impact on yield quantity and quality. In wheat salvaged nitrogen (N) from the leaves accounts for up to 90% of the total grain N content [3]. A complex regulation of many different metabolic pathways and expression of numerous genes underlies this process. How coordination and interplay of many controlling factors, like hormones, genetic reprogramming, biotic and abiotic stresses are achieved is far from being understood, but it is already clear that this regulatory network is highly complex and dynamic.
Thousands of genes are differentially regulated during senescence induction and progression. To date forward and reverse genetic approaches as well as large-scale transcript profiling have identified almost 6.500 genes being differentially expressed during the course of leaf senescence including up-regulated as well as down-regulated genes [4]. The high number of differentially regulated senescence-associated transcription factors (TF) demonstrates the dimensions of genetic reprogramming taking place. These TFs include 20 distinct families of which NAC-, WRKY-, C2H2-type zinc finger, EREBP- and MYB-families are most abundant [5]. Recently, Breeze et al. (2011) [4] published extremely important results of a high-resolution temporal transcript profiling of senescing Arabidopsis leaves giving insight into the temporal order of genetic events. One of the first steps at the onset of senescence is a shift from anabolic to catabolic processes. Amino acid metabolism and protein synthesis are down-regulated while expression of autophagy- and reactive oxygen species-related, and water-response genes is enhanced. In contrast to the following elevation of abscisic acid (ABA) and jasmonic acid (JA) signaling-related gene expression, cytokinin-mediated signaling is lowered just as chlorophyll and carotenoid biosynthesis. The next phases include down-regulation of carbon utilization and enhanced expression of cystein-aspartat proteases, carotene metabolism-associated genes and pectinesterases which is then followed by the reduction of photosynthetic activity and degradation of the photosynthetic apparatus coinciding with the increased activity of lipid catabolism, ethylene signaling and higher abundance of cytoskeletal elements [4].
Hormonal control of senescence is conveyed especially by ethylene, jasmonic and salicylic acid, cytokinin and auxin. Many mutants with a delayed senescence phenotype could be traced back to impaired or up-regulated ethylene or cytokinin signaling, respectively [6, 7]. In adition, ABA acts as a positive regulator of leaf senescence. Recently a membrane-bound, leucine rich repeat containing receptor kinase (RPK1) has been identified to play an important role in ABA-mediated senescence induction in an age-dependent manner. Strikingly,
Induction and progression of leaf senescence demands a tight regulation of numerous processes. Integration of nutritional cues, biotic and abiotic influences, plant development and age has to take place for the correct timing of onset and temporal advance of this complex developmental process. Despite the enormous efforts and achievements in this field, many of the regulatory mechanisms remain elusive.
The nowadays growth of population and thus increasing demand for food and oil crops forces agricultural industry to increase quantitative as well as qualitative yields. Until 2050 world’s population is predicted to be as high as 9-10 billion people [11] and grain requirement is projected to be doubled, mostly resulting from a higher demand for wheat fed meat [12]. As most of the cropping systems are naturally deficient in nitrogen, there is a fundamental dependency on inorganic nitrogen fertilizers. 85-90 million tons of these fertilizers are applied annually worldwide [13-15]. However, 50-70% of these nitrogenous fertilizer are lost to the environment [16], mostly due to volatilization of N2O, NO, N2 and NH3 and leaching of soluble NO3- into the water. Thus nitrogen is not only one of the most expensive nutrients to provide, but it also has a strong detrimental impact on the environment. Since surrounding ecosystems and potable water supply are endangered by oversaturation with nitrogenous compounds, it is necessary to improve application techniques and plant’s nitrogen use efficiencies.
Several different definitions of nitrogen and nutrient use efficiencies are on hand. The most common is the
Emission of nitrogen to the environment could be strongly reduced by application of ‘best management techniques’ in agricultural practice like e.g. rectifying the rate of appliance by accounting for all other possible sources of nitrogen influx (carryover from previous crops, atmospheric deposits etc.), ameliorating the timing and also changing the method of appliance to reduce atmospheric losses [13]. Food production has doubled in the last 40 years. Most of this increase could be achieved by selection of new strains, breeding and application of greater amounts of fertilizer and pesticides and other techniques [12]. Amending of nutrient use efficiencies of the crop plants was mostly accomplished via breeding programs by now. QTL selection for higher yields, increased oil or protein content has been pursued for decades. In wheat for example, increasing yield and grain protein content has been extensively studied, but improving both is restrained by the negative genetic relationship between these traits [17, 18].
Nitrogen sources vary extremely encompassing organic and inorganic forms, small peptides and single amino acids, thus uptake systems need to be adjusted and well regulated in spatial and temporal activity. Although the predominant form in which N is taken up mainly depends on the plants adaption to the given environment and influences like fertilization, soil pH, temperature, precipitation and others [14, 19], most plants cover their N demand primarily through soil nitrate being provided by fertilization, bacterial nitrification and other processes [15]. However, a wide range of different uptake system has evolved in plants. For example, oligopeptides can be taken up via OPT-proteins (oligopeptide transporters), ammonium via ammonium transporters (AMTs) and amino acids via amino acid transporters and amino acid permeases. Besides the
Four constituents of nitrate uptake are known, constitutive (c) and inducible (i) high- (HAT) and low-affinity (LAT) transporters, respectively. The high-affinity system’s KM ranges from ~ 5-100 µM, varying with plant species, and a maximal influx via this system of 1 µMol * g-1 * h-1 has been determined [23, 24]. At nitrate concentrations of 10 mM the influx rate via the LATs can reach up to ~24 µMol * g-1 * h-1 [24].
The
High affinity nitrate uptake is conducted by members of the
Members of the
Assimilation of NO3- and NH4+ almost always includes incorporation into amino acids (AA). The most abundant transport forms are glutamine, glutamate, asparagine and aspartate [45] although direct transport of NO3- and NH4+ also takes place but to a much lesser extend [46]. Nitrate assimilation thus requires reduction to ammonium. Nitrate reductase (NR) realizes the first step by reducing NO3- to NO2-. This reaction takes place in the cytoplasm, while the reduction of nitrite to ammonium is carried out in the plastids. Here, nitrite reductase (NiR) converts NO2- to NH4+ making it readily available for the incorporation into AAs in a NADH-dependent manner. Assimilation of ammonium into AAs involves chloroplastic glutamine synthetase 2 (GS2) and glutamate synthase (Fd-GOGAT), which generates glutamine and glutamate (for detailed review see [14]). Glutamine as well as glutamate serve as ammonium donor for the synthesis of all other amino acids including aspartate and asparagine, which in turn function as active NH4+ donor or as long-range nitrogen transport and storage form, respectively [47]. Alternatively carbamoylphosphate synthase can be involved in ammonium assimilation by producing carbamoylphosphate and successively citrulline and arginine. Assimilation in non-green tissues is achieved in plastids in a similar manner, although here GOGAT depends on NADH instead of ferredoxin. Carbon skeletons are essential for the acquisition of inorganic nitrogen in AAs. Especially the demand for keto-acids has to be met (see [14] and references within). These are predominantly obtained from the TCA-Cycle in the form of 2-oxoglutarate (2OG) [47, 48]. 2OG is used for incorporation of photorespiratory ammonium, resulting in the production of glutamate, which in turn can be utilized by GS1 and GS2 to produce glutamine. This displays the intricate interconnection between carbon and nitrogen metabolism, in which N uptake and assimilation is also influenced via photosynthetic rates [47]. Besides direct assimilation into AAs, nitrate can also be stored in the vacuole and in the chloroplast. Vacuolar nitrate concentrations can vary enormously, as vacuolar nitrate also contributes to turgor maintenance and might have a nitrate storage function to maintain the cytosolic nitrate concentrations which are more constant [49].
As mentioned above, induction of senescence is a highly complex regulated and dynamic process. Besides developmental cues, there are numerous other possible impacts. Nutritional starvation, photosynthetic activity, pathogen infections, carbon accumulation, carbon to nitrogen ratio, photoperiod and various other cues can lead to senescence induction on either organ or whole plant level. Both natural and stress induced senescence are accompanied with the remobilization of valuable nutrients from various organs of the plant. In the following we will again focus on the situation in leaves.
Correct timing of leaf senescence is crucial for proper plant development. Too early senescence induction would decrease the ability to assimilate CO2, while too late induction would reduce the plant’s capacity to remobilize nutrients from old leaves to developing organs [50]. Nevertheless, timing of senescence can also be regarded as an active adaption to the given nutritional and environmental conditions. For example under limited nutrition, continued growth of vegetative tissues would result in a reduced ability to develop reproductive organs.
Nutritional limitation, especially in concerns of nitrogen, has been shown to be able to enhance leaf senescence. Sunflower (
Another signaling component involved in senescence induction is light quantity and quality. Senescence can be induced by the darkening of individual leaves. However, darkening of the whole plant resulted in delay rather than in induction of leaf senescence in Arabidopsis and sunflower plants [57, 58]. Brouwer et al. (2012) [59] recently revealed the involvement of photoreceptors in dark and shading induced leaf responses. They applied different shading conditions to single leaves of Arabidopsis plants. Depending on the amount of light perceived, different biological programs were induced, leading to either acclimation to the new light conditions or leaf senescence. Furthermore,
A tight linkage between stress response and leaf senescence is demonstrated by the function of several members of the NAC- and WRKY-family [60]. For example,
Besides various other cues like the stage of plant development, pathogens, extreme temperatures, source-sink transitions and drought, the action of reactive oxygen species (ROS) has been shown to have a severe impact on the induction of leaf senescence. Cellular H2O2 levels increase at the onset of senescence due to a complex regulation of hydrogen peroxide scavenging enzymes [63]. The increase in intracellular H2O2 levels is initiated via the down-regulation of the expression of the hydrogen peroxide scavenging enzyme CATALASE2 by the transcription factor GBF1 (G-Box binding factor 1). In
Conclusively, leaf senescence is governed not only by developmental age but a wide range of various different external and internal factors, biotic and abiotic influences, molecules and cues, which have to be integrated. Despite its enormous agricultural importance, our knowledge of these integrative mechanisms is still limited and needs much more efforts to get complete insight into the regulatory network controlling the onset and progression of leaf senescence.
Nitrogen uptake and partitioning after beginning anthesis varies greatly between different species and even between ecotypes. An analysis of different Arabidopsis accessions revealed that the fate of nitrogen absorbed during flowering can be different, depending on general N availability and accession. At low nitrogen concentrations most of the N assimilated post-flowering was allocated to the seeds, while under high N regimes the main part of it was distributed to the rosette leaves and successively lost in the dry remains, except for four tested accessions. N13, Sakata, Bl-1 and Oy-0 allocated the nitrogen taken up post-flowering also to the seeds under high N supply [70]. In wheat, a minor portion of grain N is derived from N uptake post-flowering, whereas up to 90-95% is remobilized from other plant tissues [3, 71]. In oilseed rape (
Protein degradation is most likely the most important degradation process that occurs during senescence [75]. With a combined 15N tracing/proteomics approach, Desclos et al. (2009) [76] have shown that HSP70, chaperonin10 and disulfide isomerase are synthesized during the whole progression of senescence in
The aminopeptidase LAP2 has been characterized as exopeptidase liberating N-terminal leucine, methionine and phenylalanine. Arabidopsis
Chloroplast targeted proteases comprise proteases of the Lon, PreP, Clp, FtsH and DegP type [78-80]. Their substrates include, besides others, chlorophyll apoproteins like LHCII, the D1 protein of the photosystem II reaction center and Rubisco. The Clp protease complex is the most abundant stromal protease, where PreP is also located [78, 79]. Several catalytic subunits of the Clp proteases display up-regulated expression during dark-induced senescence in Arabidopsis, like e.g. ClpD/ERD1 and ClpC1. They possess sequence similarity to the chaperon HSP100 indicating that they might function as recognition subunit in the Clp protease complex to recruit denatured proteins [80]. FtsH proteases are thylakoid bound facing the stroma while Deg proteases are also thylakoid bound but facing stroma as well as thylakoid lumen [81, 82]. DegP2 is responsible for an initial cleavage of the D1 protein, where after FtsH proteases complete the full degradation [80, 83]. These two proteases belong to the family of serine proteases. In wheat, serine proteases are the most important family of proteases participating in N remobilization [84]. Subtilases have been reported to be highly expressed in barley during natural and senescence induced via artificial carbohydrate accumulation. Additionally induced proteases were SAG12, CND41-like, papain-like, serine carboxypeptidase III precursor, aspartic endopeptidases and others [85]. Roberts et al. (2012) [75] suggest a classification of senescence-associated proteases according to their expression profile and probable function during natural senescence. Class I includes all proteases being expressed in non-senescent and in senescent tissue. Although no senescence specific expression change can be observed, their continued expression in a catabolic environment displays their significance for a normal progression of senescence. Class II contains proteases being expressed at a low level in non-senescent tissue and induced upon senescence onset. Class III comprises proteases which are induced exclusively during senescence. This suggests a role in the late stages of senescence and a probable function in cell death execution. Class IV proteases constitute proteases transiently expressed during onset of senescence which could be involved in early breakdown processes like e.g. chloroplast dismantling. Finally, class V proteases are down-regulated during senescence. These enzymes are likely to fulfill housekeeping protein turnover and other proteolytic functions, which are no longer needed during the progression of leaf senescence [75].
Chloroplasts are the first organelles to show visible symptoms of degradation processes during senescence. Containing up to 75% of total leaf nitrogen, chloroplasts are the main source for its remobilization [86]. Four different pathways have been proposed for chloroplast and chloroplastic protein degradation: I) endogenous proteases degrade proteins intra-plastidial, II) degradation of stroma fragments in an extraplastidic, non-autophagic pathway, as well as III) extraplastidic degradation by autophagy-associated pathways, and IV) autophagic degradation of entire plastids [87]. Chloroplast breakdown is not a chaotic decay, but rather an organized and selective process. As chloroplasts are one of the plants main ROS-producing organelles, and due to the potential phototoxicity of many chloroplastic components and their degradation intermediates, a coordinated dismantling process is necessary to prevent severe cell damage [88, 89].
Within these organelles Rubisco represents the most abundant protein. Its abundance exceeds the requirements for photosynthesis by far, thus a nitrogen storage function has been suggested for it [90]. In chloroplasts isolated from senescing leaves a 44 kDa fragment of Rubisco’s large subunit accumulates, but seems not to be degraded further [91]. The chloroplastic aspartate protease CND41 has been shown to degrade denatured Rubisco, but not active Rubisco
Besides the RCBs, senescence-associated vacuoles (SAVs) have been described. These vacuoles, enclosed by a single membrane layer, are enriched in Rubisco and display a high proteolytic activity at a pH more acidic than the central vacuole´s. SAVs are structurally not related to RCBs which posses a double layer membrane [95, 98]. The double layer membrane enclosing the RCBs appears to be derived from the chloroplast envelope [95]. Furthermore, SAV development seems to be autophagy-independent, as Arabidopsis
Even though chlorophyll represents about 2% of the total cellular nitrogen content [86], N fixed in chlorophyll is not exported from the leaf but rather remains in the vacuole [100]. However, around 20% N are fixed in proteins associated with or directly binding chlorophyll [88] and removal of chlorophyll seems to be a prerequisite for degradation of the corresponding apoproteins [88]. Pheophorbide a oxygenase (PAO) is an iron-dependent monooxygenase localized to the inner envelope of maturing gerontoplasts and catalyzes the conversion of pheophorbide a to red chlorophyll catabolites, one of the first steps during chlorophyll degradation. It represents a key control point in regulation of chlorophyll degradation [88, 101, 102]. In
Autophagy plays a crucial role for nitrogen remobilization. The most striking phenotype of all
As mentioned above, chloroplastic glutamine synthetase (GS2), GOGAT, NiR and Rubisco are targeted for rapid degradation already during early phases of senescence, disrupting primary nitrogen assimilation. Proteolysis in the vacuole feeds into the cellular pool of free AAs during the progression of senescence. The steady-state concentrations of free AAs depend on the rate of their release due to proteolysis and their efflux into growing structures [106]. Soudry et al. (2005) [106] have utilized a bioluminescence assay combined with auxotrophic bacteria for the detection of free tryptophan levels. They assumed that tryptophan reflects the overall pool of free AAs, as it is not modified before its export into sink organs. An accumulation of free AAs was observed in detached oat and Arabidopsis leaves. While attached oat leaves showed a gradual decrease in tryptophan levels during further progression of senescence, the attached Arabidopsis leaves did not or only due to membrane leakage resulting from the experimental procedure. The authors concluded that not only source strength but also sink strength is important for successful nutrient remobilization and suggested that the small reproductive organs of Arabidopsis exerted too weak sink strength. However, these findings might be related to the experimental design, as Arabidopsis does indeed remobilize N for seed filling [70] and Diaz et al. (2005) [52] reported decreasing levels for several AAs during the progression of leaf senescence in Arabidopsis. Protein breakdown increases free AAs in the cell. While some seem to be exported without prior modification, many are probably modified, hydrolyzed or interconverted. Expressional profiling revealed that, besides others, the cytosolic GS1, glutamate dehydrogenase (GDH) and asparagine synthetase (AS) are specifically induced during senescence [14]. A series of transamination reactions would result in an accumulation of glutamate, which could serve as substrate for GDH. Deamination of glutamate via GDH provides then 2OG and ammonia. NH3 could then in turn be used as substrate for cytosolic GS1, giving rise to glutamine, which is one of the major nitrogen transport forms during nutrient remobilization. In fact many studies strengthen a positive correlation between GS activity and yield as well as grain and stem N content. Martin et al. (2006) [107] identified two cytosolic glutamine synthetase isoforms in maize which have a major impact on kernel size and yield. In wheat, GS activity was also positively linked with grain and stem N content [71]. Recently, two rice varieties with different levels of GS2 activity were analyzed and plants with higher activity displayed less NH3 emission due to photorespiration and a better ability to recycle and re-assimilate ammonia within the plant [108]. In barley amino acid permeases (AAP) seem to play a significant role during N retranslocation and grain filling. Recent RNA-Seq data revealed an overrepresentation of this gene family in both source and sink tissues. Furthermore, the grain-specific HvAAP3, which was also identified in this study, has high sequence similarity to Arabidopsis AAP1 and AAP8, which have been already shown to be involved in seed N supply (see [109] and references within).
Asparagine amounts also increase significantly in whole rosettes darkened for several days as well as in senescent leaves (see e.g. [1, 80]). Besides the senescence specific up-regulation of AS, pyruvate orthophosphate dikinase (PPDK) expression is also significantly increased during dark-induced senescence [80]. PPDK might have a role in carbon salvage after lipid degradation, thus Lin and Wu (2004) [80] also investigated other pathways possibly involved in this process. Remarkably, they found only a few components of these pathways to be up-regulated and many others even down-regulated. Based on their expressional profiling data, they postulated a alternative pathway for asparagine synthesis, where PPDK delivers metabolic precursors [80]. Additionally, seed protein contents were elevated and viability of seedlings was increased on nitrogen-limiting media in Arabidopsis
Nitrogen is not only remobilized from older leaves via amino acids. Nitrate and ammonia are also translocated to developing sink tissues. Fan et al. (2009) [111] identified a nitrate transporter (NRT1-7) which is involved in remobilization processes. Arabidopsis
Reactive oxygen and nitrogen species (ROS, RNS) play a central role in many aspects of plant development and response to environmental influences. These include among others responses to wounding, pathogen infection, drought and water stress, high salinity, cold and heat. In the case of ROS, research has focused especially on H2O2. As this reactive oxygen molecule is relatively long lived (~1 ms half life), small and uncharged, and thus is able to pass membranes, a central position in various signaling pathways has been attributed to it. Nitric oxide (NO) has been shown to be involved in many of the H2O2-mediated pathways in either a synergistic or antagonistic mode of action. In the following we will briefly introduce the production and scavenging mechanisms for this two reactive oxygen and nitrogen compounds and their interplay in regulation of developmental processes, stress responses and senescence will be outlined.
Many of the reactive oxygen species in the cell are formed as toxic byproducts of metabolic processes. Photorespiration and β-oxidation of fatty acids produce H2O2 in peroxisomes and glyoxisomes, which is normally scavenged by an extensive protection system mainly consisting of catalases (CAT) and ascorbate peroxidases (APX). Xanthine oxidase generates superoxide anions in the peroxisomes, which is converted by superoxide dismutases (SOD) into O2 and H2O2. Chloroplasts are the main site for ROS production in plants. Due to the photooxidative nature of many of their components they can give rise to superoxide radicals, hydrogen peroxide, hydroxyl radicals and singlet oxygen. ROS produced in the chloroplasts are mainly scavenged by the ascorbate-glutathione cycle [112]. SODs scavenge superoxide anions and dismutate them to O2 and H2O2, which is then in turn reduced to water by the action of ascorbate peroxidase and ascorbate. The resulting monodehydro-ascorbate (MDHA) is regenerated either via the MDHA reductase (MDHAR) under the use of NADPH or it spontaneously converts into dehydroascorbate (DHA) which is then reduced to ascorbate again via the DHA reductase (DHAR). DHAR uses glutathione (GSH) as second substrate. The reduced state of GSH is reconstituted by glutathione reductase (GR). Excess oxidized GSSG seems to be exported from the cytosol to the central vacuole and the chloroplasts to maintain a reduced environment and redox homeostasis in the cytosol and possibly the nucleus [113]. Finally, superoxide radicals can be produced as a byproduct during respiration in mitochondria. Here, also SOD and the ascorbate-glutathione cycle removes the ROS. Further ROS scavenging in this organelle is mediated by peroxiredoxins and thioredoxins, as it is also observed in chloroplasts. Additionally, non-enzymatic components like tocopherols, flavonoids, ascorbic acid and others are employed in the extensive and elaborate ROS detoxification system (reviewed in [114-119]). Under optimal growth conditions, ROS production is relatively low; however, during stress, the production of ROS is rapidly enhanced [120].
Active production of ROS or the so called “oxidative burst” is initiated upon several stresses and developmental stimuli. The main enzymes generating these ROS are the respiratory burst oxidase homologs (RBOH) [121]. In a NADPH-dependent reaction they form O2- in the apoplast. This is then converted by SODs to H2O2. The function of the 10 different RBOH proteins identified in Arabidopsis [122] is important in various developmental and regulatory processes. Root elongation is reduced in
Reactive nitrogen species (RNS) comprise NO and NO-derived molecules as di-nitrogen trioxide, nitrogen dioxide, peroxynitrite, S-nitrosothiols and others [127]. NO production in plant cells is under continuous debate. Especially the existence of a plant nitric oxide synthase (NOS) is a controversial topic. Until today, there is no clear proof for the existence of NOS in plants although there is indirect evidence through the application of NOS inhibitors, which have been established for mammalian cells (e.g. L-NAME a L-arginine analogue) in combination with NR inhibitors, or the measurement of NOS-like activity, like the conversion of L-arginine to citrulline, where NO is assumed to be produced at the same time [128-130]. AtNOS1 was identified in 2003 by Guo et al. (2003) [131], but is under controversial discussion ever since. Indeed,
Despite all the controversy on the topic of NO generation, it seems clear, that there are many ways to generate NO in plant cells and the pivotal role in many regulatory pathways cannot be denied. Involvement in fruit ripening, leaf senescence, flowering and stomatal closure and many other processes has been shown ([129] and references within).
The role of H2O2 and NO during the onset of leaf senescence has been investigated in many studies. Recently, an upstream regulator of the ROS network during ABA-mediated drought-induced leaf senescence has been identified. The drought-responsive NAC transcription factor AtNTL4 (ANAC053) has been shown to promote ROS production by directly binding to promoters of genes encoding ROS biosynthetic enzymes [137]. In guard cells, an ABA-H2O2-NO signaling cascade has been proposed for stomatal closure. H2O2-induced generation of NO in guard cells has been reported for mung bean [138], Arabidopsis [139] and other plant species (see for example [140]). Removal of H2O2 as well as the blocking of calcium channels was able to suppress NO generation [138, 141]. A further interaction of NO and H2O2 was studied in tomato (
Senescence-inhibiting features of NO have long been recognized, while H2O2 has often been attributed with senescence-promoting features. Exogenous NO application extends post-harvest life of fruits and vegetables and, during leaf maturation in pea, NO contents gradually decrease [146, 147]. Furthermore, NO-deficient mutants display an early-senescence phenotype and the heterologues expression of an NO-degrading enzyme in Arabidopsis also leads to early leaf senescence and SAG up-regulation, which could be inhibited by external supply of NO [148]. Remarkably, the senescence delaying features of NO might be achieved due its ability to scavenge various kinds of ROS. In barley aleuron cells, NO has been shown to act as an antioxidant and thus alleviating GA-mediated PCD induction [149].
Some amino acids are more susceptible for modification by ROS and RNS than others. For example cysteins are often found to be preferentially oxidized. These residues are sensitive for ROS-derived protein carbonylation and RNS-mediated nitrosylation (-SNO) and glutahionylation. Additionally, sulfenic acid and disulfide formation also can be mediated via ROS and RNS on these residues. Tryptophane residues have been shown to be specifically di-oxygenized in plant mitochondria, thus forming N-formylkynurenine. The proteins found to be specifically oxygenized did, with one exception, all posses redox-activity or were involved in redox-active proteins [150]. Another good example for this specificity is Rubisco. Preferential oxidation of certain cysteine residues mediates the binding of Rubisco to the chloroplast envelope, thus causing catalytic inactivation and marking it for degradation [151, 152]. Recently, it has been shown, that chloroplast peroxidases are present in an inactivated form and become activated in part by proteolytic cleavage upon a H2O2 signal; in combination with newly synthesized peroxidases, they regulate plastidial ROS content in neem (
Moreover, the already mentioned evidence of numerous selective oxidation reactions on specific amino acid residues depending on the type of ROS/RNS might lead to the degradation of the damaged proteins, thus generating distinct peptide patterns. These peptides would contain information being ROS- and source-specific (see [150] and references within). Spatial control might also be a source of specificity, as for example RBOH proteins are membrane bound and, therefore, localization of the ROS signal could be highly specific. Additionally, through the extensive detoxification system, ROS signals also might be spatially confined. In contrast, ROS signal auto-propagation over long distances via RBOHD induced by various stimuli has been shown in Arabidopsis [156]. Interestingly, temporal oscillation of ROS bursts has been observed to modulate root tip growth of Arabidopsis root hairs [157]. Finally, integration of metabolic reactions also seems to be a convenient way of specific signaling. Local blockage or enhancement of certain pathways would lead to the accumulation of intermediates, which in turn could serve for signaling functions (reviewed in [158]).
The intriguing connection between efficient nutrient remobilization and progression of leaf senescence is obvious. The correct timing of onset and progression of senescence has great influence on seed and fruit development and viability. Therefore, manipulating leaf senescence seems to be a promising trait to increase yield in various crop species. Functional stay green traits can prolong carbon assimilation and thus increase yield. However, a too strong delay in leaf senescence might hamper nutrient and especially nitrogen remobilization from the leaves. For various wheat mutants, Derkx et al. (2012) [159] speculated that the stay green phenotype might be associated with a decrease in grain N sink strength. Gpc-B1, a QTL locus in wheat, which is among others associated with increased grain protein content, has been shown to encode a NAC transcription factor (
Besides QTL selection, transgenic approaches to increase nitrogen use efficiency in crop plants have been extensively studied. For example expression of alanine aminotransferase and asparagine synthase often resulted in enhanced seed protein content and higher seed yield. Increased cytokinin biosynthesis almost always resulted in delayed senescence and was sometimes associated with higher seed yield, seed protein content and increased biomass. Expression of amino acid permease from V
Nevertheless, although transgenic approaches have proven to enhance nitrogen use efficiencies and yield quantity as well as quality, these techniques have to cope with general skepticism on the consumer’s side. Although approval for the agricultural use of genetically modified organisms has been extensively performed like e.g. in the Swiss National Research program NRP 59 (Benefits and risks of the deliberated release of genetically modified plants) clearly indicating a low risk and a enormously high potential of transgenic crop plants, problems with the acceptance of this technology, especially in Europe, still have to be faced.
When people are asked why health is important, many are unable to answer it. The reason for this may be due to their lack of awareness of the importance of health and the consequent lack of proper self-care. Health can generally be considered an essential basis of life, but many people still do things that show that health is not a priority in their lives. They spend a lot of time on the opportunities they find but do not spend time learning what is good for them to exercise or stay healthy; they spend their budget on Nonsignificant things. But for a more nutritious diet, they pay less.
According to the World Health Organization’s definition, health is a state of complete physical, mental and social well-being and not only the absence of disease or infirmity. This definition of health has been given more attention since 1978 at the UN Summit in Almaty. Due to the considerable differences in the level of health in different countries of the world, the members of this organization were required to provide Primary Health Care by providing an essential package aimed at reducing the health gap between different countries and with the goal of Health for All by the year 2000. Undoubtedly, one of the most critical concerns and challenges that different countries have faced in providing primary health care to their population has been the lack of resources in the face of the growing need to receive this care during all these years.
So from the perspective of health economists, health is a durable good, or type of capital, that provides services. The flow of services produced from the stock of health capital is consumed continuously over an individual’s lifetime. Each person is assumed to be endowed with a given stock of health at the birth time, such as a year. Over the period, the stock of health depreciates with age and maybe promoted by investments in Health services. Death occurs when an individual’s stock of health falls below a critical minimum level.
To request a product or service, you must ask for it, afford it, and have a specific plan for purchasing it. Desires are, in fact, the unlimited desires and inclinations that people have for goods and services. Imagine being able to afford something if you could afford it or it was not so expensive. When we make choices, scarcity guarantees that many of our desires will never be met. Demand reflects our plan and vision for the demands that will be met. The amount of goods and services that the consumer plans to buy depends on many factors: commodity prices, related commodity prices, personal income, expected future prices, population, advertising, and preferences.
We must first discuss the relationship between the demand for a good or service and the price. All other factors influencing demand must be kept constant to study this relationship called the Citrus Paribus principle. The demand for a good or service is inversely related to its price; as the price increases, the demand for it decreases, and vice versa. Of course, the rate of demand response to price changes is not the same for all goods, which will be discussed in the topic of elasticity [1].
The demand curve is a geometric location of points where the dependent variable is the rate of use of a good, and the independent variable is the price of that good; in general, the demand curve shows the maximum demand for a good at different prices and also represent the ultimate price for a certain amount of a good. Usually, the price variable is shown on the y axis and the amount of goods or services on the x-axis (Figure 1).
Demand curve.
This shows the maximum amount someone is willing to pay for a small increment in consumption rate. Care should be taken in using the “demand” to mean the amount of consumption of a particular good or service at a specific price and to use it to mean a range of corresponding values in the price range (for example, one point on the demand curve versus the whole Points on the curve). The demand for a good or service is a function of its relative price and buyers’ income. The demand curve is a two-dimensional representation of this process. Responding to price changes is moving along the demand curve and responding to changes in revenue as the entire demand curve changes and shifts (Figure 2). Some of the characteristics of the demand side that should always be kept in mind when using the demand curve in healthcare, especially when making normative statements about well-being, are: Uncertainty on the part of the consumer about the likelihood of future illness; Side effects, the effectiveness of treatment methods and their possible cost. When sick, people experience anxiety, disability, suffering, and pain that may not be considered in the theory of desirability; It is also important to note that there may be an external demand for care and treatment of a person in addition to their need; And the fact that the price at which the applicant responds to the service or goods may in no way be an accurate reflection of the final cost of providing that product or service to the service provider.
Change in demand curve.
We can also consider the demand curve as a payment ability curve that measures the ultimate benefit. This curve shows the highest price a person is willing and able to pay for the last unit purchased. If there are fewer goods available, the highest price that a person is willing and able to pay for a larger unit will be high. But as the quantity of available goods increases, the ultimate benefit of each additional unit decreases, and the highest price offered on the demand curve decreases.
In addition to the price of the product in question, which is inversely related to the demand for that product, we can examine the relationship between the demand for a product and other factors in the space of the demand curve.
A complementary good is a good that is used with another commodity, and if the price of one of these commodities increases, in addition to the demand for that commodity, the demand for the other commodity also decreases.
Medical care consists of countless goods and services that maintain, improve, or restore a person’s health. For example, a young man may have wrist surgery to repair a torn tendon so he can return to work, an older woman may have cataract surgery to improve her vision, or a parent may have to Bring their child to a healthcare center for an annual dental checkup to prevent future problems. Prescription drugs, prescription glasses, and dentures are examples of medical supplies, while surgeries, periodic physical examinations, and visits to medical professionals are examples of medical services. Preventive and medical care are heterogeneous, making it difficult to measure and quantify medical care units accurately. Medical care services have four characteristics that distinguish these from other goods and services: intangibility, inseparability, inventory, and inconsistency.
Intangibility means that the five senses are incapable of evaluating medical services. Unlike new shoes, a vegetable salad dinner, or a new cell phone, the consumer cannot see, taste, or touch medical services. Indivisibility also means that the production and consumption of a medical service take place simultaneously. For example, when you see an ophthalmologist for an examination, you use ophthalmic services right at the time of production. In addition, a patient is often seen as both a producer and a consumer. Inventory is directly related to inseparability. Because the production and consumption of a medical service occur simultaneously, healthcare providers cannot store or maintain medical services. For example, a physiotherapist cannot provide a list of different physiotherapy services to meet demand during busy times. Finally, inconsistency means that the variety, composition, and quality of medical services are very different. Although different people may see a doctor simultaneously, there are various reasons for visiting a doctor. One person may see a doctor because of a typical physical problem, while another may see a doctor because of a heart attack. The combination of prescribed medical care or the frequency of its use can vary significantly from person to person and at different times [4, 5].
The following factors affect the demand for healthcare:
Needs (based on patient perception)
Patient preferences
Price or cost of use
Income
transportation cost
waiting time
Quality of care (based on patient perception)
The use of healthcare depends on demand and availability. If planners allocate resources based on need rather than demand, they may find themselves in a situation where some services are underused, and some services are overused.
Just as the healthcare market is different from other commodities, so is the demand for healthcare different from the simple demand model. One of the differences is that healthcare is not demanded because it is self-satisfying. After all, healthcare itself does not lead to satisfaction. Instead, healthcare is in demand because people are satisfied with their activities when they are healthy. So the demand for healthcare is a derived demand.
Patients’ perceptions of their need and capacity to benefit from healthcare are strongly influenced by physicians and healthcare providers. Although in economics, it is assumed that consumers can make informed decisions about their consumption patterns, healthcare consumers delegate this decision-making power to healthcare workers who are more aware of them. This phenomenon is due to information asymmetry between healthcare providers and patients, which carries the risk of induced demand by providers to increase revenue. Another complication stems from the fact that healthcare is highly heterogeneous. Each patient has a relatively different combination of pain and symptoms. Therefore each patient needs to purchase a fairly different package of care that both the patient and the physician have uncertainty about its effectiveness in meeting the need.
Another critical difference is that many health services are paid for by third parties. Payments by third parties or insurance companies Although they significantly increase people’s purchasing power for healthcare, it is also important to note that they can lead to ethical risks and increase demand for services that patients may not need.
Demand for healthcare depends on the level of consumption of an individual in case of illness; the amount of consumption can differ according to the factors affecting the demand, such as income, service price, education, norms, social traditions, and quality. A person’s decision to use or use services is related to his or her illness/injury status rather than healthcare. Developing countries are focused on promoting healthcare as an essential policy to improve health outcomes and fulfill international obligations and universal coverage of health services. However, many policies have focused more on improving physical access than on the demand-side healthcare needs pattern. In low-income countries, allocating scarce financial resources is based on clear criteria for the impact of investment in the health sector on service demand.
In these countries, due to the lack or weakness of social security systems, the occurrence of the disease leads to increased health costs and reduced labor productivity and leads to a loss of household welfare. In developed countries, due to insurance, many health services are used with minimal consumer participation in the payment; however, in developing countries, concerns about less use of health services, to the extent of supply. Or poor access is associated. However, even in health services, due to various barriers on the demand side, related to the cost of treatment, travel costs, and quality of services, the rate of exploitation is low. Also, the importance of a person’s health status in a clinical context is related to the analysis and social evaluation of a person’s health and social environment. Studies have shown that the risk of death is related to people’s perception of the health importance of maintaining it. Since one of the priorities of health policymakers is to improve people’s health, various factors that directly and indirectly affect the demand for health services should be examined more carefully. Identifying the factors influencing individuals’ decision to request healthcare services and choosing from different providers. Therefore, evaluating the determinants of demand for health services will introduce and implement appropriate incentive schemes to encourage better health services. Because health is one of the essential components of human capital and healthy human beings are the center of sustainable development, health can significantly increase the ability of individuals to perform various activities, including productive activities. As a result, people are looking for health. At the individual level, health is mainly influenced by multiple factors such as biological factors, lifestyle, purchased non-medical services, purchased medical services and goods, and different socio-economic characteristics. People’s understanding and expectation of healthcare quality are essential because the perceived quality of health services often affects health services’ behavior and consumption patterns [6].
Grossman used human capital theory to explain the demand for healthcare. According to human capital theory, people invest in themselves through education and health to increase their income. Grossman proposed an approach in which many important aspects of the demand for health services differ from the traditional demand approach:
That consumers are looking for health and demand health services to achieve it.
To achieve health, consumers buy health services from the market and combine them with their efforts to improve health, such as diet and exercise.
The health gained lasts more than a period and is not immediately depreciated to be analyzed as a capital good.
Most notably, health can be considered as both a consumer good and a capital good. From the people’s point of view, health is a consumer product because it makes them feel better. As a capital good, it is also suitable for people’s health because it increases the number of healthy days of life to work and earn money. Figure 3 provides a simple diagram that explains the concept of health capital. Just as one thinks that cars or laptops are capital goods that use the flow of their services over time, one can also understand the savings of one’s health capital, the outcome of which is “healthy days”. Outflow may be considered as one dimension of healthy days or measured in several dimensions of physical, mental health, and limited activity. People consume a range of health inputs, including healthcare inputs, diet, exercise, and time, so they invest in health savings. These investments help maintain or improve consumers’ health reserves, providing them with healthy days. Over time, health reserves may either grow, remain constant, or decrease with age due to illness or injury. As mentioned in Box 3, many technologies may generate health capital, using different amounts of time or health goods and services. Figure 3 shows how the ultimate goal of “healthy days” guides consumer decisions about the amount, time, and cost of investing in health storage. We will see that the prices of healthcare, the rate of wages of individuals, and their productivity in the production of health determine how resources are allocated between health capital and other goods and services that people buy. Consider a consumer who buys market inputs (e.g., medical care, food, clothing) and combines them with his or her own time to generate a health capital reserve that increases his or her utility [2].
Investing in health.
As an economic principle, the price of a good and the demand for that good are inversely related. That is, the higher the price of a commodity, the less demand there is for that commodity, and the lower the price of a good, the greater the demand for it. Price elasticity of demand shows that a one percent change in a good price causes a few percent changes in the demand. For example, if the price of a car rises by one percent, the demand for it will fall by a few percent, and vice versa, if the price of a vehicle falls by one percent, the demand will increase by a few percent.
Three things can happen when we calculate the price elasticity for a commodity:
When a one percent change in the price of a commodity occurs, the demand for that commodity changes by more than one percent. These types of goods are very price sensitive.
When a one percent change in a good price causes the demand for that good to change by less than one percent, this type of product is called inelastic. Demand for this type of goods shows a mild reaction to price changes.
The third case is when a one percent change in the price of a good causes a one percent change in the demand for that good.
If there is an inverse relationship between price and demand, demand elasticity will always be negative because the percentage change in one face or denominator is a negative fraction. Therefore, after calculating the price elasticity of demand, if the result, regardless of the negative sign of the number, becomes more than one, the commodity with elasticity is less than one, the good without elasticity, and if it is equal to one, the good has a single elasticity.
Although the price elasticity of a commodity can be determined only by collecting price information and calculating, some factors affect this ratio.
Alternative goods: The more alternative goods there are, the higher the price elasticity of that product. That is, when the price changes, the demand for that product changes more drastically. Also, price changes in a product cause a shift in the demand for alternative goods. In the healthcare sector, there are usually few alternatives to a health or medical intervention.
Complementary goods: When a product has a supplement, a change in the price of a complementary product causes a change in the demand for another product. Maternal and child care can be mentioned as complementary goods in the field of health (Figure 4).
Types of elasticity.
Commodity prices: In general, if the price of a commodity is very low, the amount of demand does not react to price changes. But high-priced products are attractive. On the other hand, different results are obtained depending on the price at which the demand elasticity is calculated. As mentioned initially, the price of a product has an inverse relationship with the amount of demand. When the price is precisely in the middle of the demand curve of a commodity, the commodity has a single elasticity. Also, if the price is less than the midpoint, the product in that range is unattractive. If the price is above the midpoint, the product will be pulled. You can see this in the chart below.
Marginal modes in demand elasticity.
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This chapter aimed at providing some basic and fundamental properties of ceria, the importance of oxygen vacancies in this material, nano‐size effects and various synthesis strategies to form diverse structural morphologies. Finally, some key applications of ceria‐based nanostructures are reviewed. 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Nanotechnology is widely considered to constitute the basis of the next technological revolution, following on from the first Industrial Revolution, which began around 1750 with the introduction of the steam engine and steelmaking. Nanotechnology is defined as the design, characterization, production, and application of materials, devices and systems by controlling shape and size of the nanoscale. The nanoscale itself is at present considered to cover the range from 1 to 100 nm. All samples prepared in thin film forms and the characterization revealed their nanostructure. The major exploitation of thin films has been in microelectronics, there are numerous and growing applications in communications, optical electronics, coatings of all kinds, and in energy generation. A great many sophisticated analytical instruments and techniques, largely developed to characterize thin films, have already become indispensable in virtually every scientific endeavor irrespective of discipline. Among all these techniques, electrodeposition is the most suitable technique for nanostructured thin films from aqueous solution served as samples under investigation. The electrodeposition of metallic layers from aqueous solution is based on the discharge of metal ions present in the electrolyte at a cathodic surface (the substrate or component.) The metal ions accept an electron from the electrically conducting material at the solid- electrolyte interface and then deposit as metal atoms onto the surface. The electrons necessary for this to occur are either supplied from an externally applied potential source or are surrendered by a reducing agent present in solution (electroless reduction). The metal ions themselves derive either from metal salts added to solution, or by the anodic dissolution of the so-called sacrificial anodes, made of the same metal that is to be deposited at the cathode.",book:{id:"4718",slug:"electroplating-of-nanostructures",title:"Electroplating of Nanostructures",fullTitle:"Electroplating of Nanostructures"},signatures:"Souad A. M. 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In addition, the use of nanoparticles into the sensitive thin films has resulted in an enhancement in the response time, robustness or sensitivity in the optical devices, which is associated to the inherent properties of nanoparticles (high surface area ratio or porosity). Among all of them, the metallic nanoparticles are of great interest for sensing applications due to the presence of strong absorption bands in the visible and near-infrared regions, due to their localized surface plasmon resonances (LSPR). These optical resonances are due to the coupling of certain modes of the incident light to the collective oscillation of the conduction electrons of the metallic nanoparticles. The LSPR extinction bands are very useful for sensing applications as far as they can be affected by refractive index variations of the surrounding medium of the nanoparticles, and therefore, it is possible to create optical sensors with outstanding properties such as high sensitivity and optical self-reference. In this chapter, the attractive optical properties of metal nanostructures and their implementation into different optical fiber configuration for sensing or biosensing applications will be studied.",book:{id:"5721",slug:"nanoplasmonics-fundamentals-and-applications",title:"Nanoplasmonics",fullTitle:"Nanoplasmonics - Fundamentals and Applications"},signatures:"Pedro J. Rivero, Javier Goicoechea and Francisco J. Arregui",authors:[{id:"69816",title:"Dr.",name:"Javier",middleName:null,surname:"Goicoechea",slug:"javier-goicoechea",fullName:"Javier Goicoechea"},{id:"188796",title:"Dr.",name:"Pedro J.",middleName:null,surname:"Rivero",slug:"pedro-j.-rivero",fullName:"Pedro J. Rivero"},{id:"197277",title:"Dr.",name:"Francisco",middleName:null,surname:"Arregui",slug:"francisco-arregui",fullName:"Francisco Arregui"}]},{id:"25297",title:"Nanofabrication of Metal Oxide Patterns Using Self-Assembled Monolayers",slug:"nanofabrication-of-metal-oxide-patterns-using-self-assembled-monolayers",totalDownloads:3473,totalCrossrefCites:0,totalDimensionsCites:0,abstract:null,book:{id:"860",slug:"nanofabrication",title:"Nanofabrication",fullTitle:"Nanofabrication"},signatures:"Yoshitake Masuda",authors:[{id:"12385",title:"Dr.",name:"Yoshitake",middleName:null,surname:"Masuda",slug:"yoshitake-masuda",fullName:"Yoshitake Masuda"}]},{id:"77225",title:"Piezoelectricity and Its Applications",slug:"piezoelectricity-and-its-applications",totalDownloads:639,totalCrossrefCites:0,totalDimensionsCites:1,abstract:"The piezoelectric effect is extensively encountered in nature and many synthetic materials. Piezoelectric materials are capable of transforming mechanical strain and vibration energy into electrical energy. This property allows opportunities for implementing renewable and sustainable energy through power harvesting and self-sustained smart sensing in buildings. As the most common construction material, plain cement paste lacks satisfactory piezoelectricity and is not efficient at harvesting the electrical energy from the ambient vibrations of a building system. In recent years, many techniques have been proposed and applied to improve the piezoelectric capacity of cement-based composite, namely admixture incorporation and physical. The successful application of piezoelectric materials for sustainable building development not only relies on understanding the mechanism of the piezoelectric properties of various building components, but also the latest developments and implementations in the building industry. Therefore, this review systematically illustrates research efforts to develop new construction materials with high piezoelectricity and energy storage capacity. In addition, this article discusses the latest techniques for utilizing the piezoelectric materials in energy harvesters, sensors and actuators for various building systems. With advanced methods for improving the cementations piezoelectricity and applying the material piezoelectricity for different building functions, more renewable and sustainable building systems are anticipated.",book:{id:"10511",slug:"multifunctional-ferroelectric-materials",title:"Multifunctional Ferroelectric Materials",fullTitle:"Multifunctional Ferroelectric Materials"},signatures:"B. Chandra Sekhar, B. Dhanalakshmi, B. Srinivasa Rao, S. Ramesh, K. Venkata Prasad, P.S.V. Subba Rao and B. Parvatheeswara Rao",authors:[{id:"335022",title:"Dr.",name:"B. Chandra",middleName:null,surname:"Sekhar",slug:"b.-chandra-sekhar",fullName:"B. Chandra Sekhar"},{id:"422021",title:"Dr.",name:"B.",middleName:null,surname:"Dhanalakshmi",slug:"b.-dhanalakshmi",fullName:"B. Dhanalakshmi"},{id:"422022",title:"Dr.",name:"B.Srinivasa",middleName:null,surname:"Rao",slug:"b.srinivasa-rao",fullName:"B.Srinivasa Rao"},{id:"422023",title:"Dr.",name:"S.",middleName:null,surname:"Ramesh",slug:"s.-ramesh",fullName:"S. Ramesh"},{id:"422024",title:"Dr.",name:"K.Venkata",middleName:null,surname:"Prasad",slug:"k.venkata-prasad",fullName:"K.Venkata Prasad"},{id:"422025",title:"Dr.",name:"P.S.V",middleName:null,surname:"Subba Rao",slug:"p.s.v-subba-rao",fullName:"P.S.V Subba Rao"},{id:"422026",title:"Dr.",name:"B.Parvatheeswara",middleName:null,surname:"Rao",slug:"b.parvatheeswara-rao",fullName:"B.Parvatheeswara Rao"}]}],onlineFirstChaptersFilter:{topicId:"1169",limit:6,offset:0},onlineFirstChaptersCollection:[{id:"79274",title:"Molecular Simulation of Cholesteric Liquid-Crystal Polyesteramides: Conformational and Structure Analysis by Rietveld Refinement",slug:"molecular-simulation-of-cholesteric-liquid-crystal-polyesteramides-conformational-and-structure-anal",totalDownloads:77,totalDimensionsCites:0,doi:"10.5772/intechopen.100388",abstract:"Molecular modeling techniques are applied to polyesteramides designed as PNOBDME (C34H38N2O6)n and PNOBEE (C26H22N2O6)n, synthesized and characterized as cholesteric liquid crystals -through the condensation reaction between 4 and 4′-(terephthaloyl- diaminedibenzoic chloride (NOBC) and racemic glycol: DL-1,2 dodecanediol, or DL-1,2-butanediol, respectively, being chemical modifications of precursor multifunctional cholesteric LC polyesters, adding new properties but holding their helical macromolecular structures. Although the starting raw materials were racemic, these cholesteric LC polymers exhibit unexpected optical activity and chiral morphology. For that reason, conformational analysis is studied on the monomer models of PNOBDME and PNOBEE. Four helical conformers models, experimentally observed by NMR, are proposed for each cholesteric polyesteramide: Rgg, Rgt, Sgg, Sgt. Polymerization of the monomeric conformers, with minima energies, have been simulated and used to reproduce the crystalline fraction observed by x-ray diffraction. Three orders of chirality are observed in the structure of the polymer chains: One due to the asymmetric carbon atoms, a second chirality due to the two successive rotations of the benzene groups, along the main chain, within the monomer which implies the formation of helical molecules, for both R and S chirality and still, a third chirality corresponding to the twisting of the rigid/semirigid cholesteric LC polymer chains. All these factors contributing to the net optical activity observed in these materials. Crystal packing is simulated in triclinic primitive P1cells, with molecular chains oriented parallel to the z-axis (c lattice parameter equal to the pitch length of each simulated polymer helix) and parameters a, b, α, β and γ, obtained by Pawley refinement from the known structures of precursor polyesters. The simulated x-ray diffraction patterns of the proposed crystal models fit, after successive Pawley and Rietveld refinement cycles, the experimental WAXS. Powder Quantitative Phase Analysis applied to an ideal mixture with the four possible helical conformers, for each degree of polymerization, allows to refine their relative weight and determine the major phase relative amount. These results would confirm the theory of a preferable recrystallization, among the four possible helical diastereoisomers, depending on the synthetic conditions.",book:{id:"10957",title:"Liquid Crystals",coverURL:"https://cdn.intechopen.com/books/images_new/10957.jpg"},signatures:"Mercedes Pérez Méndez, José Fayos Alcañiz and Marc Meunier"},{id:"80636",title:"The LCD Interfacing and Programming",slug:"the-lcd-interfacing-and-programming",totalDownloads:205,totalDimensionsCites:0,doi:"10.5772/intechopen.102408",abstract:"This chapter will discuss 10 subchapters that will make it more detailed and easier for the reader to master and implement them in their project. Before discussing the subchapters in detail the author discusses the wide use of LCD in various equipment that needs display and the superiority of it compared to the conventional existing displays especially in the low energy consumption of it compare to the rest of the displays, then the author ended this general discussion by mentioning the type of LCD known in the market right now (passive matrix and active matrix). After discussing the LCD in general, the author starts discussing the detailed 10 subchapters. The 10 subchapters are 1. 2 × 16 LCD; 2. LCD controller; 3. LCD instructions; 4. LCD initialization; 5. More instructions; 6. LCD initialization subroutine; 7. Displaying a character on the LCD; 8. Displaying more than 1 character on the LCD; 9. A 4-bit mode 2 × 16 LCD module. To give the readers with a succinct overview of important details or interesting information, the author provides the summary of this chapter in subchapter 10. The author also provided the glossary to enable the readers to quickly study the general terms used in this chapter. Finally, the author provides some questions to enable the reader to test their own knowledge of this chapter. The references is also provided to enable the readers to refer to some articles as the sources of this subchapter and to enable them to enrich their knowledge of this chapter.",book:{id:"10957",title:"Liquid Crystals",coverURL:"https://cdn.intechopen.com/books/images_new/10957.jpg"},signatures:"Dahlan Sitompul and Poltak Sihombing"},{id:"80473",title:"Overview of Liquid Crystal Research: Computational Advancements, Challenges, Future Prospects and Applications",slug:"overview-of-liquid-crystal-research-computational-advancements-challenges-future-prospects-and-appli",totalDownloads:93,totalDimensionsCites:0,doi:"10.5772/intechopen.101417",abstract:"Liquid crystal (LC) is a fascinating state of matter that combines order and mobility at multiple hierarchical levels, spanning from nanoscale to the macroscale, or from molecular to the macroscopic, and is composed of molecules and layers as thin as of a few nanometer in size. This unique combination allows such a system to adapt to a wide range of external stimuli, including temperature, magnetic field, electric field, mechanical stress, light, chemical reaction, and electrochemical response, by determining a new lowest energy configuration. Liquid crystalline nanostructures efficiently transmit and amplify information and attributes over macroscopic sizes due to their dynamic nature. The responsiveness and diversity of LCs provide enormous potential and challenges for fundamental scientific insights as well as opening the door to countless applied applications. Recent breakthroughs in nanotechnology have boosted the discipline, both in terms of theoretical simulations and the ability to fabricate nanoscale structures such as sub-wavelength gratings, nanoporous materials, and nanoparticles. Because LC materials are switchable, a new family of active plasmonic and nanophotonic devices is emerging, describing fascinating basic research processes as well as the creation of upgraded devices. This chapter discusses the fundamentals, computational advances, future prospects and challenges, as well as potential applications of LCs.",book:{id:"10957",title:"Liquid Crystals",coverURL:"https://cdn.intechopen.com/books/images_new/10957.jpg"},signatures:"Maria Malik, Muhammad Aamir Iqbal, Wajeehah Shahid, Syed Zaheer Ud Din, Mujtaba Ikram, Nadia Anwar, Samiah Shahid and Faryal Idrees"},{id:"80010",title:"Phase Transitions and Structure of Liquid Crystalline Cellulose Ether Solutions in a Magnetic Field and in Its Absence",slug:"phase-transitions-and-structure-of-liquid-crystalline-cellulose-ether-solutions-in-a-magnetic-field-",totalDownloads:95,totalDimensionsCites:0,doi:"10.5772/intechopen.101451",abstract:"The results of research studies of a magnetic field effect on structure and phase transitions of liquid crystalline polymer systems are described. Influence of intensity of the magnetic field, molecular weight, and concentration of polymers in solutions on the phase diagrams is analyzed. The dependences of boundary curves on the chemical structure of polymers and solvents are discussed. Results of theoretical researches of the magnetic field effect on the diamagnetic macromolecule orientation in solutions are described. The shift of boundary curves of liquid crystalline cellulose derivative systems is compared with the energy of magnetic field stored by solutions.",book:{id:"10957",title:"Liquid Crystals",coverURL:"https://cdn.intechopen.com/books/images_new/10957.jpg"},signatures:"Sergey Vshivkov and Elena Rusinova"},{id:"78941",title:"High Precision Optical Wavefront Generation Using Liquid Crystal Spatial Light Modulator (LC-SLM)",slug:"high-precision-optical-wavefront-generation-using-liquid-crystal-spatial-light-modulator-lc-slm-",totalDownloads:180,totalDimensionsCites:0,doi:"10.5772/intechopen.100379",abstract:"LC-SLM provides a flexible way to modulate the phase of light with the help of a grayscale pattern loaded on it. Nevertheless, the modulated phase profile is of relatively low accuracy due to the nonlinear and nonuniform response of the liquid crystal layer in the SLM. To improve the performance of LC-SLM on the wavefront generation, the nonlinear and nonuniform phase response needs to be calibrated and compensated effectively. In this chapter, we present some state-of-art methods to measure the phase modulation curve of the LC-SLM. Some methods to measure the static aberration caused by the backplane of the LC-SLM are then presented. Last but not the least, the future development of the LC-SLM in phase modulation is also presented.",book:{id:"10957",title:"Liquid Crystals",coverURL:"https://cdn.intechopen.com/books/images_new/10957.jpg"},signatures:"Zixin Zhao"}],onlineFirstChaptersTotal:5},preDownload:{success:null,errors:{}},subscriptionForm:{success:null,errors:{}},aboutIntechopen:{},privacyPolicy:{},peerReviewing:{},howOpenAccessPublishingWithIntechopenWorks:{},sponsorshipBooks:{sponsorshipBooks:[],offset:0,limit:8,total:null},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: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}],testimonialsList:[{id:"13",text:"The collaboration with and support of the technical staff of IntechOpen is fantastic. 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Dr. Koprowski has authored more than a hundred research papers with dozens in impact factor (IF) journals and has authored or co-authored six books. Additionally, he is the author of several national and international patents in the field of biomedical devices and imaging. 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Her research interests include multi-criteria decision analysis, industrial plants, logistics, manufacturing, and safety. She serves as an associate editor for the International Journal of the Analytic Hierarchy Process and is an editorial board member for several other journals. 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Her focus is on quality, innovation, leadership, and personalised learning. She works primarily at the strategic and policy levels, both nationally and internationally, and with key international organisations. She is committed to promoting and improving OFDL in the context of SDG4 and the future of education. Ossiannilsson has more than 20 years of experience in her current field, but more than 40 years in the education sector. She works as a reviewer and expert for the European Commission and collaborates with the Joint Research Centre for Quality in Open Education. Ossiannilsson also collaborates with ITCILO and ICoBC (International Council on Badges and Credentials). She is a member of the ICDE Board of Directors and has previously served on the boards of EDEN and EUCEN. Ossiannilsson is a quality expert and reviewer for ICDE, EDEN and the EADTU. She chairs the ICDE OER Advocacy Committee and is a member of the ICDE Quality Network. 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He holds a Master’s Degree in Urban Development Planning from the University College of London (UCL), and a Ph.D. in Urban Planning & Engineering from TU Berlin. He has conducted applied research on urban planning and infrastructure issues in over 20 countries in Africa and Asia. In 2005 he joined Eawag-Sandec as Leader of the Strategic Environmental Sanitation Planning Group. Since 2015 he heads the research department Sanitation, Water and Solid Waste for Development (Sandec) at the Swiss Federal Institute of Aquatic Research and Technology (Eawag).",institutionString:"Swiss Federal Institute of Aquatic Science and Technology, Switzerland",institution:{name:"Swiss Federal Institute of Aquatic Science and Technology",institutionURL:null,country:{name:"Switzerland"}}},editorTwo:{id:"290571",title:"Dr.",name:"Rui Alexandre",middleName:null,surname:"Castanho",slug:"rui-alexandre-castanho",fullName:"Rui Alexandre Castanho",profilePictureURL:"https://mts.intechopen.com/storage/users/290571/images/system/290571.jpg",biography:"Rui Alexandre Castanho has a master\\'s degree in Planning, Audit, and Control in Urban Green Spaces and an international Ph.D. in Sustainable Planning in Borderlands. Currently, he is a professor at WSB University, Poland, and a visiting professor at the University of Johannesburg, South Africa. 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He has been reviewer for several publications of the Optical Society of America\\'s including Photonics Technology Letters and Applied Optics.\n\nPersonal Interests\nThese include motor cycling in a very relaxed manner and performing martial arts.",institutionString:null,institution:{name:"Charité",country:{name:"Germany"}}},{id:"341622",title:"Ph.D.",name:"Eduardo",middleName:null,surname:"Rojas Alvarez",slug:"eduardo-rojas-alvarez",fullName:"Eduardo Rojas Alvarez",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/341622/images/15892_n.jpg",biography:null,institutionString:null,institution:{name:"University of Cuenca",country:{name:"Ecuador"}}},{id:"215610",title:"Prof.",name:"Muhammad",middleName:null,surname:"Sarfraz",slug:"muhammad-sarfraz",fullName:"Muhammad Sarfraz",position:null,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",institution:{name:"Kuwait University",country:{name:"Kuwait"}}},{id:"32650",title:"Prof.",name:"Lukas",middleName:"Willem",surname:"Snyman",slug:"lukas-snyman",fullName:"Lukas Snyman",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/32650/images/4136_n.jpg",biography:"Lukas Willem Snyman received his basic education at primary and high schools in South Africa, Eastern Cape. He enrolled at today's Nelson Metropolitan University and graduated from this university with a BSc in Physics and Mathematics, B.Sc Honors in Physics, MSc in Semiconductor Physics, and a Ph.D. in Semiconductor Physics in 1987. After his studies, he chose an academic career and devoted his energy to the teaching of physics to first, second, and third-year students. After positions as a lecturer at the University of Port Elizabeth, he accepted a position as Associate Professor at the University of Pretoria, South Africa.\r\n\r\nIn 1992, he motivates the concept of 'television and computer-based education” as means to reach large student numbers with only the best of teaching expertise and publishes an article on the concept in the SA Journal of Higher Education of 1993 (and later in 2003). The University of Pretoria subsequently approved a series of test projects on the concept with outreach to Mamelodi and Eerste Rust in 1993. In 1994, the University established a 'Unit for Telematic Education ' as a support section for multiple faculties at the University of Pretoria. In subsequent years, the concept of 'telematic education” subsequently becomes well established in academic circles in South Africa, grew in popularity, and is adopted by many universities and colleges throughout South Africa as a medium of enhancing education and training, as a method to reaching out to far out communities, and as a means to enhance study from the home environment.\r\n\r\nProfessor Snyman in subsequent years pursued research in semiconductor physics, semiconductor devices, microelectronics, and optoelectronics.\r\n\r\nIn 2000 he joined the TUT as a full professor. Here served for a period as head of the Department of Electronic Engineering. Here he makes contributions to solar energy development, microwave and optoelectronic device development, silicon photonics, as well as contributions to new mobile telecommunication systems and network planning in SA.\r\n\r\nCurrently, he teaches electronics and telecommunications at the TUT to audiences ranging from first-year students to Ph.D. level.\r\n\r\nFor his research in the field of 'Silicon Photonics” since 1990, he has published (as author and co-author) about thirty internationally reviewed articles in scientific journals, contributed to more than forty international conferences, about 25 South African provisional patents (as inventor and co-inventor), 8 PCT international patent applications until now. Of these, two USA patents applications, two European Patents, two Korean patents, and ten SA patents have been granted. A further 4 USA patents, 5 European patents, 3 Korean patents, 3 Chinese patents, and 3 Japanese patents are currently under consideration.\r\n\r\nRecently he has also published an extensive scholarly chapter in an internet open access book on 'Integrating Microphotonic Systems and MOEMS into standard Silicon CMOS Integrated circuitry”.\r\n\r\nFurthermore, Professor Snyman recently steered a new initiative at the TUT by introducing a 'Laboratory for Innovative Electronic Systems ' at the Department of Electrical Engineering. The model of this laboratory or center is to primarily combine outputs as achieved by high-level research with lower-level system development and entrepreneurship in a technical university environment. Students are allocated to projects at different levels with PhDs and Master students allocated to the generation of new knowledge and new technologies, while students at the diploma and Baccalaureus level are allocated to electronic systems development with a direct and a near application for application in industry or the commercial and public sectors in South Africa.\r\n\r\nProfessor Snyman received the WIRSAM Award of 1983 and the WIRSAM Award in 1985 in South Africa for best research papers by a young scientist at two international conferences on electron microscopy in South Africa. He subsequently received the SA Microelectronics Award for the best dissertation emanating from studies executed at a South African university in the field of Physics and Microelectronics in South Africa in 1987. In October of 2011, Professor Snyman received the prestigious Institutional Award for 'Innovator of the Year” for 2010 at the Tshwane University of Technology, South Africa. This award was based on the number of patents recognized and granted by local and international institutions as well as for his contributions concerning innovation at the TUT.",institutionString:null,institution:{name:"University of South Africa",country:{name:"South Africa"}}},{id:"317279",title:"Mr.",name:"Ali",middleName:"Usama",surname:"Syed",slug:"ali-syed",fullName:"Ali Syed",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/317279/images/16024_n.png",biography:"A creative, talented, and innovative young professional who is dedicated, well organized, and capable research fellow with two years of experience in graduate-level research, published in engineering journals and book, with related expertise in Bio-robotics, equally passionate about the aesthetics of the mechanical and electronic system, obtained expertise in the use of MS Office, MATLAB, SolidWorks, LabVIEW, Proteus, Fusion 360, having a grasp on python, C++ and assembly language, possess proven ability in acquiring research grants, previous appointments with social and educational societies with experience in administration, current affiliations with IEEE and Web of Science, a confident presenter at conferences and teacher in classrooms, able to explain complex information to audiences of all levels.",institutionString:null,institution:{name:"Air University",country:{name:"Pakistan"}}},{id:"75526",title:"Ph.D.",name:"Zihni Onur",middleName:null,surname:"Uygun",slug:"zihni-onur-uygun",fullName:"Zihni Onur Uygun",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/75526/images/12_n.jpg",biography:"My undergraduate education and my Master of Science educations at Ege University and at Çanakkale Onsekiz Mart University have given me a firm foundation in Biochemistry, Analytical Chemistry, Biosensors, Bioelectronics, Physical Chemistry and Medicine. After obtaining my degree as a MSc in analytical chemistry, I started working as a research assistant in Ege University Medical Faculty in 2014. In parallel, I enrolled to the MSc program at the Department of Medical Biochemistry at Ege University to gain deeper knowledge on medical and biochemical sciences as well as clinical chemistry in 2014. In my PhD I deeply researched on biosensors and bioelectronics and finished in 2020. Now I have eleven SCI-Expanded Index published papers, 6 international book chapters, referee assignments for different SCIE journals, one international patent pending, several international awards, projects and bursaries. In parallel to my research assistant position at Ege University Medical Faculty, Department of Medical Biochemistry, in April 2016, I also founded a Start-Up Company (Denosens Biotechnology LTD) by the support of The Scientific and Technological Research Council of Turkey. Currently, I am also working as a CEO in Denosens Biotechnology. The main purposes of the company, which carries out R&D as a research center, are to develop new generation biosensors and sensors for both point-of-care diagnostics; such as glucose, lactate, cholesterol and cancer biomarker detections. My specific experimental and instrumental skills are Biochemistry, Biosensor, Analytical Chemistry, Electrochemistry, Mobile phone based point-of-care diagnostic device, POCTs and Patient interface designs, HPLC, Tandem Mass Spectrometry, Spectrophotometry, ELISA.",institutionString:null,institution:{name:"Ege University",country:{name:"Turkey"}}},{id:"267434",title:"Dr.",name:"Rohit",middleName:null,surname:"Raja",slug:"rohit-raja",fullName:"Rohit Raja",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/267434/images/system/267434.jpg",biography:"Dr. Rohit Raja received Ph.D. in Computer Science and Engineering from Dr. CVRAMAN University in 2016. His main research interest includes Face recognition and Identification, Digital Image Processing, Signal Processing, and Networking. Presently he is working as Associate Professor in IT Department, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (CG), India. He has authored several Journal and Conference Papers. He has good Academics & Research experience in various areas of CSE and IT. He has filed and successfully published 27 Patents. He has received many time invitations to be a Guest at IEEE Conferences. He has published 100 research papers in various International/National Journals (including IEEE, Springer, etc.) and Proceedings of the reputed International/ National Conferences (including Springer and IEEE). He has been nominated to the board of editors/reviewers of many peer-reviewed and refereed Journals (including IEEE, Springer).",institutionString:"Guru Ghasidas Vishwavidyalaya",institution:{name:"Guru Ghasidas Vishwavidyalaya",country:{name:"India"}}},{id:"246502",title:"Dr.",name:"Jaya T.",middleName:"T",surname:"Varkey",slug:"jaya-t.-varkey",fullName:"Jaya T. Varkey",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/246502/images/11160_n.jpg",biography:"Jaya T. Varkey, PhD, graduated with a degree in Chemistry from Cochin University of Science and Technology, Kerala, India. She obtained a PhD in Chemistry from the School of Chemical Sciences, Mahatma Gandhi University, Kerala, India, and completed a post-doctoral fellowship at the University of Minnesota, USA. She is a research guide at Mahatma Gandhi University and Associate Professor in Chemistry, St. Teresa’s College, Kochi, Kerala, India.\nDr. Varkey received a National Young Scientist award from the Indian Science Congress (1995), a UGC Research award (2016–2018), an Indian National Science Academy (INSA) Visiting Scientist award (2018–2019), and a Best Innovative Faculty award from the All India Association for Christian Higher Education (AIACHE) (2019). She Hashas received the Sr. Mary Cecil prize for best research paper three times. She was also awarded a start-up to develop a tea bag water filter. \nDr. Varkey has published two international books and twenty-seven international journal publications. She is an editorial board member for five international journals.",institutionString:"St. Teresa’s College",institution:null},{id:"250668",title:"Dr.",name:"Ali",middleName:null,surname:"Nabipour Chakoli",slug:"ali-nabipour-chakoli",fullName:"Ali Nabipour Chakoli",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/250668/images/system/250668.jpg",biography:"Academic Qualification:\r\n•\tPhD in Materials Physics and Chemistry, From: Sep. 2006, to: Sep. 2010, School of Materials Science and Engineering, Harbin Institute of Technology, Thesis: Structure and Shape Memory Effect of Functionalized MWCNTs/poly (L-lactide-co-ε-caprolactone) Nanocomposites. Supervisor: Prof. Wei Cai,\r\n•\tM.Sc in Applied Physics, From: 1996, to: 1998, Faculty of Physics & Nuclear Science, Amirkabir Uni. of Technology, Tehran, Iran, Thesis: Determination of Boron in Micro alloy Steels with solid state nuclear track detectors by neutron induced auto radiography, Supervisors: Dr. M. Hosseini Ashrafi and Dr. A. Hosseini.\r\n•\tB.Sc. in Applied Physics, From: 1991, to: 1996, Faculty of Physics & Nuclear Science, Amirkabir Uni. of Technology, Tehran, Iran, Thesis: Design of shielding for Am-Be neutron sources for In Vivo neutron activation analysis, Supervisor: Dr. M. Hosseini Ashrafi.\r\n\r\nResearch Experiences:\r\n1.\tNanomaterials, Carbon Nanotubes, Graphene: Synthesis, Functionalization and Characterization,\r\n2.\tMWCNTs/Polymer Composites: Fabrication and Characterization, \r\n3.\tShape Memory Polymers, Biodegradable Polymers, ORC, Collagen,\r\n4.\tMaterials Analysis and Characterizations: TEM, SEM, XPS, FT-IR, Raman, DSC, DMA, TGA, XRD, GPC, Fluoroscopy, \r\n5.\tInteraction of Radiation with Mater, Nuclear Safety and Security, NDT(RT),\r\n6.\tRadiation Detectors, Calibration (SSDL),\r\n7.\tCompleted IAEA e-learning Courses:\r\nNuclear Security (15 Modules),\r\nNuclear Safety:\r\nTSA 2: Regulatory Protection in Occupational Exposure,\r\nTips & Tricks: Radiation Protection in Radiography,\r\nSafety and Quality in Radiotherapy,\r\nCourse on Sealed Radioactive Sources,\r\nCourse on Fundamentals of Environmental Remediation,\r\nCourse on Planning for Environmental Remediation,\r\nKnowledge Management Orientation Course,\r\nFood Irradiation - Technology, Applications and Good Practices,\r\nEmployment:\r\nFrom 2010 to now: Academic staff, Nuclear Science and Technology Research Institute, Kargar Shomali, Tehran, Iran, P.O. Box: 14395-836.\r\nFrom 1997 to 2006: Expert of Materials Analysis and Characterization. Research Center of Agriculture and Medicine. Rajaeeshahr, Karaj, Iran, P. O. Box: 31585-498.",institutionString:"Atomic Energy Organization of Iran",institution:{name:"Atomic Energy Organization of Iran",country:{name:"Iran"}}},{id:"248279",title:"Dr.",name:"Monika",middleName:"Elzbieta",surname:"Machoy",slug:"monika-machoy",fullName:"Monika Machoy",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/248279/images/system/248279.jpeg",biography:"Monika Elżbieta Machoy, MD, graduated with distinction from the Faculty of Medicine and Dentistry at the Pomeranian Medical University in 2009, defended her PhD thesis with summa cum laude in 2016 and is currently employed as a researcher at the Department of Orthodontics of the Pomeranian Medical University. She expanded her professional knowledge during a one-year scholarship program at the Ernst Moritz Arndt University in Greifswald, Germany and during a three-year internship at the Technical University in Dresden, Germany. She has been a speaker at numerous orthodontic conferences, among others, American Association of Orthodontics, European Orthodontic Symposium and numerous conferences of the Polish Orthodontic Society. She conducts research focusing on the effect of orthodontic treatment on dental and periodontal tissues and the causes of pain in orthodontic patients.",institutionString:"Pomeranian Medical University",institution:{name:"Pomeranian Medical University",country:{name:"Poland"}}},{id:"252743",title:"Prof.",name:"Aswini",middleName:"Kumar",surname:"Kar",slug:"aswini-kar",fullName:"Aswini Kar",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/252743/images/10381_n.jpg",biography:"uploaded in cv",institutionString:null,institution:{name:"KIIT University",country:{name:"India"}}},{id:"204256",title:"Dr.",name:"Anil",middleName:"Kumar",surname:"Kumar Sahu",slug:"anil-kumar-sahu",fullName:"Anil Kumar Sahu",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/204256/images/14201_n.jpg",biography:"I have nearly 11 years of research and teaching experience. I have done my master degree from University Institute of Pharmacy, Pt. Ravi Shankar Shukla University, Raipur, Chhattisgarh India. I have published 16 review and research articles in international and national journals and published 4 chapters in IntechOpen, the world’s leading publisher of Open access books. I have presented many papers at national and international conferences. I have received research award from Indian Drug Manufacturers Association in year 2015. My research interest extends from novel lymphatic drug delivery systems, oral delivery system for herbal bioactive to formulation optimization.",institutionString:null,institution:{name:"Chhattisgarh Swami Vivekanand Technical University",country:{name:"India"}}},{id:"253468",title:"Dr.",name:"Mariusz",middleName:null,surname:"Marzec",slug:"mariusz-marzec",fullName:"Mariusz Marzec",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/253468/images/system/253468.png",biography:"An assistant professor at Department of Biomedical Computer Systems, at Institute of Computer Science, Silesian University in Katowice. Scientific interests: computer analysis and processing of images, biomedical images, databases and programming languages. He is an author and co-author of scientific publications covering analysis and processing of biomedical images and development of database systems.",institutionString:"University of Silesia",institution:{name:"University of Silesia",country:{name:"Poland"}}},{id:"212432",title:"Prof.",name:"Hadi",middleName:null,surname:"Mohammadi",slug:"hadi-mohammadi",fullName:"Hadi Mohammadi",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/212432/images/system/212432.jpeg",biography:"Dr. Hadi Mohammadi is a biomedical engineer with hands-on experience in the design and development of many engineering structures and medical devices through various projects that he has been involved in over the past twenty years. Dr. Mohammadi received his BSc. and MSc. degrees in Mechanical Engineering from Sharif University of Technology, Tehran, Iran, and his PhD. degree in Biomedical Engineering (biomaterials) from the University of Western Ontario. He was a postdoctoral trainee for almost four years at University of Calgary and Harvard Medical School. He is an industry innovator having created the technology to produce lifelike synthetic platforms that can be used for the simulation of almost all cardiovascular reconstructive surgeries. He’s been heavily involved in the design and development of cardiovascular devices and technology for the past 10 years. He is currently an Assistant Professor with the University of British Colombia, Canada.",institutionString:"University of British Columbia",institution:{name:"University of British Columbia",country:{name:"Canada"}}},{id:"254463",title:"Prof.",name:"Haisheng",middleName:null,surname:"Yang",slug:"haisheng-yang",fullName:"Haisheng Yang",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/254463/images/system/254463.jpeg",biography:"Haisheng Yang, Ph.D., Professor and Director of the Department of Biomedical Engineering, College of Life Science and Bioengineering, Beijing University of Technology. He received his Ph.D. degree in Mechanics/Biomechanics from Harbin Institute of Technology (jointly with University of California, Berkeley). Afterwards, he worked as a Postdoctoral Research Associate in the Purdue Musculoskeletal Biology and Mechanics Lab at the Department of Basic Medical Sciences, Purdue University, USA. He also conducted research in the Research Centre of Shriners Hospitals for Children-Canada at McGill University, Canada. Dr. Yang has over 10 years research experience in orthopaedic biomechanics and mechanobiology of bone adaptation and regeneration. He earned an award from Beijing Overseas Talents Aggregation program in 2017 and serves as Beijing Distinguished Professor.",institutionString:null,institution:{name:"Beijing University of Technology",country:{name:"China"}}},{id:"89721",title:"Dr.",name:"Mehmet",middleName:"Cuneyt",surname:"Ozmen",slug:"mehmet-ozmen",fullName:"Mehmet Ozmen",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/89721/images/7289_n.jpg",biography:null,institutionString:null,institution:{name:"Gazi University",country:{name:"Turkey"}}},{id:"265335",title:"Mr.",name:"Stefan",middleName:"Radnev",surname:"Stefanov",slug:"stefan-stefanov",fullName:"Stefan Stefanov",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/265335/images/7562_n.jpg",biography:null,institutionString:null,institution:{name:"Medical University Plovdiv",country:{name:"Bulgaria"}}},{id:"242893",title:"Ph.D. Student",name:"Joaquim",middleName:null,surname:"De Moura",slug:"joaquim-de-moura",fullName:"Joaquim De Moura",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/242893/images/7133_n.jpg",biography:"Joaquim de Moura received his degree in Computer Engineering in 2014 from the University of A Coruña (Spain). In 2016, he received his M.Sc degree in Computer Engineering from the same university. He is currently pursuing his Ph.D degree in Computer Science in a collaborative project between ophthalmology centers in Galicia and the University of A Coruña. His research interests include computer vision, machine learning algorithms and analysis and medical imaging processing of various kinds.",institutionString:null,institution:{name:"University of A Coruña",country:{name:"Spain"}}},{id:"294334",title:"B.Sc.",name:"Marc",middleName:null,surname:"Bruggeman",slug:"marc-bruggeman",fullName:"Marc Bruggeman",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/294334/images/8242_n.jpg",biography:"Chemical engineer graduate, with a passion for material science and specific interest in polymers - their near infinite applications intrigue me. \n\nI plan to continue my scientific career in the field of polymeric biomaterials as I am fascinated by intelligent, bioactive and biomimetic materials for use in both consumer and medical applications.",institutionString:null,institution:null},{id:"255757",title:"Dr.",name:"Igor",middleName:"Victorovich",surname:"Lakhno",slug:"igor-lakhno",fullName:"Igor Lakhno",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/255757/images/system/255757.jpg",biography:"Igor Victorovich Lakhno was born in 1971 in Kharkiv (Ukraine). \nMD – 1994, Kharkiv National Medical Univesity.\nOb&Gyn; – 1997, master courses in Kharkiv Medical Academy of Postgraduate Education.\nPh.D. – 1999, Kharkiv National Medical Univesity.\nDSC – 2019, PL Shupik National Academy of Postgraduate Education \nProfessor – 2021, Department of Obstetrics and Gynecology of VN Karazin Kharkiv National University\nHead of Department – 2021, Department of Perinatology, Obstetrics and gynecology of Kharkiv Medical Academy of Postgraduate Education\nIgor Lakhno has been graduated from international training courses on reproductive medicine and family planning held at Debrecen University (Hungary) in 1997. Since 1998 Lakhno Igor has worked as an associate professor in the department of obstetrics and gynecology of VN Karazin National University and an associate professor of the perinatology, obstetrics, and gynecology department of Kharkiv Medical Academy of Postgraduate Education. Since June 2019 he’s been a professor in the department of obstetrics and gynecology of VN Karazin National University and a professor of the perinatology, obstetrics, and gynecology department. He’s affiliated with Kharkiv Medical Academy of Postgraduate Education as a Head of Department from November 2021. Igor Lakhno has participated in several international projects on fetal non-invasive electrocardiography (with Dr. J. A. Behar (Technion), Prof. D. Hoyer (Jena University), and José Alejandro Díaz Méndez (National Institute of Astrophysics, Optics, and Electronics, Mexico). He’s an author of about 200 printed works and there are 31 of them in Scopus or Web of Science databases. Igor Lakhno is a member of the Editorial Board of Reproductive Health of Woman, Emergency Medicine, and Technology Transfer Innovative Solutions in Medicine (Estonia). He is a medical Editor of “Z turbotoyu pro zhinku”. Igor Lakhno is a reviewer of the Journal of Obstetrics and Gynaecology (Taylor and Francis), British Journal of Obstetrics and Gynecology (Wiley), Informatics in Medicine Unlocked (Elsevier), The Journal of Obstetrics and Gynecology Research (Wiley), Endocrine, Metabolic & Immune Disorders-Drug Targets (Bentham Open), The Open Biomedical Engineering Journal (Bentham Open), etc. He’s defended a dissertation for a DSc degree “Pre-eclampsia: prediction, prevention, and treatment”. Three years ago Igor Lakhno has participated in a training course on innovative technologies in medical education at Lublin Medical University (Poland). Lakhno Igor has participated as a speaker in several international conferences and congresses (International Conference on Biological Oscillations April 10th-14th 2016, Lancaster, UK, The 9th conference of the European Study Group on Cardiovascular Oscillations). His main scientific interests: are obstetrics, women’s health, fetal medicine, and cardiovascular medicine. \nIgor Lakhno is a consultant at Kharkiv municipal perinatal center. He’s graduated from training courses on endoscopy in gynecology. He has 28 years of practical experience in the field.",institutionString:null,institution:null},{id:"244950",title:"Dr.",name:"Salvatore",middleName:null,surname:"Di Lauro",slug:"salvatore-di-lauro",fullName:"Salvatore Di Lauro",position:null,profilePictureURL:"https://intech-files.s3.amazonaws.com/0030O00002bSF1HQAW/ProfilePicture%202021-12-20%2014%3A54%3A14.482",biography:"Name:\n\tSALVATORE DI LAURO\nAddress:\n\tHospital Clínico Universitario Valladolid\nAvda Ramón y Cajal 3\n47005, Valladolid\nSpain\nPhone number: \nFax\nE-mail:\n\t+34 983420000 ext 292\n+34 983420084\nsadilauro@live.it\nDate and place of Birth:\nID Number\nMedical Licence \nLanguages\t09-05-1985. Villaricca (Italy)\n\nY1281863H\n474707061\nItalian (native language)\nSpanish (read, written, spoken)\nEnglish (read, written, spoken)\nPortuguese (read, spoken)\nFrench (read)\n\t\t\nCurrent position (title and company)\tDate (Year)\nVitreo-Retinal consultant in ophthalmology. Hospital Clinico Universitario Valladolid. Sacyl. National Health System.\nVitreo-Retinal consultant in ophthalmology. Instituto Oftalmologico Recoletas. Red Hospitalaria Recoletas. Private practise.\t2017-today\n\n2019-today\n\t\n\t\nEducation (High school, university and postgraduate training > 3 months)\tDate (Year)\nDegree in Medicine and Surgery. University of Neaples 'Federico II”\nResident in Opthalmology. Hospital Clinico Universitario Valladolid\nMaster in Vitreo-Retina. IOBA. University of Valladolid\nFellow of the European Board of Ophthalmology. Paris\nMaster in Research in Ophthalmology. University of Valladolid\t2003-2009\n2012-2016\n2016-2017\n2016\n2012-2013\n\t\nEmployments (company and positions)\tDate (Year)\nResident in Ophthalmology. Hospital Clinico Universitario Valladolid. Sacyl.\nFellow in Vitreo-Retina. IOBA. University of Valladolid\nVitreo-Retinal consultant in ophthalmology. Hospital Clinico Universitario Valladolid. Sacyl. National Health System.\nVitreo-Retinal consultant in ophthalmology. Instituto Oftalmologico Recoletas. Red Hospitalaria Recoletas. \n\t2012-2016\n2016-2017\n2017-today\n\n2019-Today\n\n\n\t\nClinical Research Experience (tasks and role)\tDate (Year)\nAssociated investigator\n\n' FIS PI20/00740: DESARROLLO DE UNA CALCULADORA DE RIESGO DE\nAPARICION DE RETINOPATIA DIABETICA BASADA EN TECNICAS DE IMAGEN MULTIMODAL EN PACIENTES DIABETICOS TIPO 1. Grant by: Ministerio de Ciencia e Innovacion \n\n' (BIO/VA23/14) Estudio clínico multicéntrico y prospectivo para validar dos\nbiomarcadores ubicados en los genes p53 y MDM2 en la predicción de los resultados funcionales de la cirugía del desprendimiento de retina regmatógeno. Grant by: Gerencia Regional de Salud de la Junta de Castilla y León.\n' Estudio multicéntrico, aleatorizado, con enmascaramiento doble, en 2 grupos\nparalelos y de 52 semanas de duración para comparar la eficacia, seguridad e inmunogenicidad de SOK583A1 respecto a Eylea® en pacientes con degeneración macular neovascular asociada a la edad' (CSOK583A12301; N.EUDRA: 2019-004838-41; FASE III). Grant by Hexal AG\n\n' Estudio de fase III, aleatorizado, doble ciego, con grupos paralelos, multicéntrico para comparar la eficacia y la seguridad de QL1205 frente a Lucentis® en pacientes con degeneración macular neovascular asociada a la edad. (EUDRACT: 2018-004486-13). Grant by Qilu Pharmaceutical Co\n\n' Estudio NEUTON: Ensayo clinico en fase IV para evaluar la eficacia de aflibercept en pacientes Naive con Edema MacUlar secundario a Oclusion de Vena CenTral de la Retina (OVCR) en regimen de tratamientO iNdividualizado Treat and Extend (TAE)”, (2014-000975-21). Grant by Fundacion Retinaplus\n\n' Evaluación de la seguridad y bioactividad de anillos de tensión capsular en conejo. Proyecto Procusens. Grant by AJL, S.A.\n\n'Estudio epidemiológico, prospectivo, multicéntrico y abierto\\npara valorar la frecuencia de la conjuntivitis adenovírica diagnosticada mediante el test AdenoPlus®\\nTest en pacientes enfermos de conjuntivitis aguda”\\n. National, multicenter study. Grant by: NICOX.\n\nEuropean multicentric trial: 'Evaluation of clinical outcomes following the use of Systane Hydration in patients with dry eye”. Study Phase 4. Grant by: Alcon Labs'\n\nVLPs Injection and Activation in a Rabbit Model of Uveal Melanoma. Grant by Aura Bioscience\n\nUpdating and characterization of a rabbit model of uveal melanoma. Grant by Aura Bioscience\n\nEnsayo clínico en fase IV para evaluar las variantes genéticas de la vía del VEGF como biomarcadores de eficacia del tratamiento con aflibercept en pacientes con degeneración macular asociada a la edad (DMAE) neovascular. Estudio BIOIMAGE. IMO-AFLI-2013-01\n\nEstudio In-Eye:Ensayo clínico en fase IV, abierto, aleatorizado, de 2 brazos,\nmulticçentrico y de 12 meses de duración, para evaluar la eficacia y seguridad de un régimen de PRN flexible individualizado de 'esperar y extender' versus un régimen PRN según criterios de estabilización mediante evaluaciones mensuales de inyecciones intravítreas de ranibizumab 0,5 mg en pacientes naive con neovascularización coriodea secunaria a la degeneración macular relacionada con la edad. CP: CRFB002AES03T\n\nTREND: Estudio Fase IIIb multicéntrico, randomizado, de 12 meses de\nseguimiento con evaluador de la agudeza visual enmascarado, para evaluar la eficacia y la seguridad de ranibizumab 0.5mg en un régimen de tratar y extender comparado con un régimen mensual, en pacientes con degeneración macular neovascular asociada a la edad. CP: CRFB002A2411 Código Eudra CT:\n2013-002626-23\n\n\n\nPublications\t\n\n2021\n\n\n\n\n2015\n\n\n\n\n2021\n\n\n\n\n\n2021\n\n\n\n\n2015\n\n\n\n\n2015\n\n\n2014\n\n\n\n\n2015-16\n\n\n\n2015\n\n\n2014\n\n\n2014\n\n\n\n\n2014\n\n\n\n\n\n\n\n2014\n\nJose Carlos Pastor; Jimena Rojas; Salvador Pastor-Idoate; Salvatore Di Lauro; Lucia Gonzalez-Buendia; Santiago Delgado-Tirado. Proliferative vitreoretinopathy: A new concept of disease pathogenesis and practical\nconsequences. Progress in Retinal and Eye Research. 51, pp. 125 - 155. 03/2016. DOI: 10.1016/j.preteyeres.2015.07.005\n\n\nLabrador-Velandia S; Alonso-Alonso ML; Di Lauro S; García-Gutierrez MT; Srivastava GK; Pastor JC; Fernandez-Bueno I. Mesenchymal stem cells provide paracrine neuroprotective resources that delay degeneration of co-cultured organotypic neuroretinal cultures.Experimental Eye Research. 185, 17/05/2019. DOI: 10.1016/j.exer.2019.05.011\n\nSalvatore Di Lauro; Maria Teresa Garcia Gutierrez; Ivan Fernandez Bueno. Quantification of pigment epithelium-derived factor (PEDF) in an ex vivo coculture of retinal pigment epithelium cells and neuroretina.\nJournal of Allbiosolution. 2019. ISSN 2605-3535\n\nSonia Labrador Velandia; Salvatore Di Lauro; Alonso-Alonso ML; Tabera Bartolomé S; Srivastava GK; Pastor JC; Fernandez-Bueno I. Biocompatibility of intravitreal injection of human mesenchymal stem cells in immunocompetent rabbits. Graefe's archive for clinical and experimental ophthalmology. 256 - 1, pp. 125 - 134. 01/2018. DOI: 10.1007/s00417-017-3842-3\n\n\nSalvatore Di Lauro, David Rodriguez-Crespo, Manuel J Gayoso, Maria T Garcia-Gutierrez, J Carlos Pastor, Girish K Srivastava, Ivan Fernandez-Bueno. A novel coculture model of porcine central neuroretina explants and retinal pigment epithelium cells. Molecular Vision. 2016 - 22, pp. 243 - 253. 01/2016.\n\nSalvatore Di Lauro. Classifications for Proliferative Vitreoretinopathy ({PVR}): An Analysis of Their Use in Publications over the Last 15 Years. Journal of Ophthalmology. 2016, pp. 1 - 6. 01/2016. DOI: 10.1155/2016/7807596\n\nSalvatore Di Lauro; Rosa Maria Coco; Rosa Maria Sanabria; Enrique Rodriguez de la Rua; Jose Carlos Pastor. Loss of Visual Acuity after Successful Surgery for Macula-On Rhegmatogenous Retinal Detachment in a Prospective Multicentre Study. Journal of Ophthalmology. 2015:821864, 2015. DOI: 10.1155/2015/821864\n\nIvan Fernandez-Bueno; Salvatore Di Lauro; Ivan Alvarez; Jose Carlos Lopez; Maria Teresa Garcia-Gutierrez; Itziar Fernandez; Eva Larra; Jose Carlos Pastor. Safety and Biocompatibility of a New High-Density Polyethylene-Based\nSpherical Integrated Porous Orbital Implant: An Experimental Study in Rabbits. Journal of Ophthalmology. 2015:904096, 2015. DOI: 10.1155/2015/904096\n\nPastor JC; Pastor-Idoate S; Rodríguez-Hernandez I; Rojas J; Fernandez I; Gonzalez-Buendia L; Di Lauro S; Gonzalez-Sarmiento R. Genetics of PVR and RD. Ophthalmologica. 232 - Suppl 1, pp. 28 - 29. 2014\n\nRodriguez-Crespo D; Di Lauro S; Singh AK; Garcia-Gutierrez MT; Garrosa M; Pastor JC; Fernandez-Bueno I; Srivastava GK. Triple-layered mixed co-culture model of RPE cells with neuroretina for evaluating the neuroprotective effects of adipose-MSCs. Cell Tissue Res. 358 - 3, pp. 705 - 716. 2014.\nDOI: 10.1007/s00441-014-1987-5\n\nCarlo De Werra; Salvatore Condurro; Salvatore Tramontano; Mario Perone; Ivana Donzelli; Salvatore Di Lauro; Massimo Di Giuseppe; Rosa Di Micco; Annalisa Pascariello; Antonio Pastore; Giorgio Diamantis; Giuseppe Galloro. Hydatid disease of the liver: thirty years of surgical experience.Chirurgia italiana. 59 - 5, pp. 611 - 636.\n(Italia): 2007. ISSN 0009-4773\n\nChapters in books\n\t\n' Salvador Pastor Idoate; Salvatore Di Lauro; Jose Carlos Pastor Jimeno. PVR: Pathogenesis, Histopathology and Classification. Proliferative Vitreoretinopathy with Small Gauge Vitrectomy. Springer, 2018. ISBN 978-3-319-78445-8\nDOI: 10.1007/978-3-319-78446-5_2. \n\n' Salvatore Di Lauro; Maria Isabel Lopez Galvez. Quistes vítreos en una mujer joven. Problemas diagnósticos en patología retinocoroidea. Sociedad Española de Retina-Vitreo. 2018.\n\n' Salvatore Di Lauro; Salvador Pastor Idoate; Jose Carlos Pastor Jimeno. iOCT in PVR management. OCT Applications in Opthalmology. pp. 1 - 8. INTECH, 2018. DOI: 10.5772/intechopen.78774.\n\n' Rosa Coco Martin; Salvatore Di Lauro; Salvador Pastor Idoate; Jose Carlos Pastor. amponadores, manipuladores y tinciones en la cirugía del traumatismo ocular.Trauma Ocular. Ponencia de la SEO 2018..\n\n' LOPEZ GALVEZ; DI LAURO; CRESPO. OCT angiografia y complicaciones retinianas de la diabetes. PONENCIA SEO 2021, CAPITULO 20. (España): 2021.\n\n' Múltiples desprendimientos neurosensoriales bilaterales en paciente joven. Enfermedades Degenerativas De Retina Y Coroides. SERV 04/2016. \n' González-Buendía L; Di Lauro S; Pastor-Idoate S; Pastor Jimeno JC. Vitreorretinopatía proliferante (VRP) e inflamación: LA INFLAMACIÓN in «INMUNOMODULADORES Y ANTIINFLAMATORIOS: MÁS ALLÁ DE LOS CORTICOIDES. 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