Comparison between the feature extraction techniques.
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Human beings express their feelings, opinions, views and notions orally through speech. The speech production process includes articulation, voice, and fluency [1, 2]. It is a complex naturally acquired human motor abilities, a task categorized in regular adults by the production of about 14 different sounds per second via the harmonized actions of roughly 100 muscles connected by spinal and cranial nerves. The simplicity with which human beings speak is in contrast to the complexity of the task, and that complexity could assist in explaining why speech can be very sensitive to diseases associated with the nervous system [3].
\nThere have been several successful attempts in the development of systems that can analyze, classify and recognize speech signals. Both hardware and software that have been developed for such tasks have been applied in various fields such as health care, government sectors and agriculture. Speaker recognition is the capability of a software or hardware to receive speech signal, identify the speaker present in the speech signal and recognize the speaker afterwards [4]. Speaker recognition executes a task similar to what the human brain undertakes. This starts from speech which is an input to the speaker recognition system. Generally, speaker recognition process takes place in three main steps which are acoustic processing, feature extraction and classification/recognition [5].
\nThe speech signal has to be processed to remove noise before the extraction of the important attributes in the speech [6] and identification. The purpose of feature extraction is to illustrate a speech signal by a predetermined number of components of the signal. This is because all the information in the acoustic signal is too cumbersome to deal with, and some of the information is irrelevant in the identification task [7, 8].
\nFeature extraction is accomplished by changing the speech waveform to a form of parametric representation at a relatively lesser data rate for subsequent processing and analysis. This is usually called the front end signal-processing [9, 10]. It transforms the processed speech signal to a concise but logical representation that is more discriminative and reliable than the actual signal. With front end being the initial element in the sequence, the quality of the subsequent features (pattern matching and speaker modeling) is significantly affected by the quality of the front end [10].
\nTherefore, acceptable classification is derived from excellent and quality features. In present automatic speaker recognition (ASR) systems, the procedure for feature extraction has normally been to discover a representation that is comparatively reliable for several conditions of the same speech signal, even with alterations in the environmental conditions or speaker, while retaining the portion that characterizes the information in the speech signal [7, 8].
\nFeature extraction approaches usually yield a multidimensional feature vector for every speech signal [11]. A wide range of options are available to parametrically represent the speech signal for the recognition process, such as perceptual linear prediction (PLP), linear prediction coding (LPC) and mel-frequency cepstrum coefficients (MFCC). MFCC is the best known and very popular [9, 12]. Feature extraction is the most relevant portion of speaker recognition. Features of speech have a vital part in the segregation of a speaker from others [13]. Feature extraction reduces the magnitude of the speech signal devoid of causing any damage to the power of speech signal [14].
\nBefore the features are extracted, there are sequences of preprocessing phases that are first carried out. The preprocessing step is pre-emphasis. This is achieved by passing the signal through a FIR filter [15] which is usually a first-order finite impulse response (FIR) filter [16]. This is succeeded by frame blocking, a method of partitioning the speech signal into frames. It removes the acoustic interface existing in the start and end of the speech signal [17].
\nThe framed speech signal is then windowed. Bandpass filter is a suitable window [15] that is applied to minimize disjointedness at the start and finish of each frame. The two most famous categories of windows are Hamming and Rectangular windows [18]. It increases the sharpness of harmonics, eliminates the discontinuous of signal by tapering beginning and ending of the frame zero. It also reduces the spectral distortion formed by the overlap [17].
\nMel frequency cepstral coefficients (MFCC) was originally suggested for identifying monosyllabic words in continuously spoken sentences but not for speaker identification. MFCC computation is a replication of the human hearing system intending to artificially implement the ear’s working principle with the assumption that the human ear is a reliable speaker recognizer [19]. MFCC features are rooted in the recognized discrepancy of the human ear’s critical bandwidths with frequency filters spaced linearly at low frequencies and logarithmically at high frequencies have been used to retain the phonetically vital properties of the speech signal. Speech signals commonly contain tones of varying frequencies, each tone with an actual frequency, f (Hz) and the subjective pitch is computed on the Mel scale. The mel-frequency scale has linear frequency spacing below 1000 Hz and logarithmic spacing above 1000 Hz. Pitch of 1 kHz tone and 40 dB above the perceptual audible threshold is defined as 1000 mels, and used as reference point [20].
\nMFCC is based on signal disintegration with the help of a filter bank. The MFCC gives a discrete cosine transform (DCT) of a real logarithm of the short-term energy displayed on the Mel frequency scale [21]. MFCC is used to identify airline reservation, numbers spoken into a telephone and voice recognition system for security purpose. Some modifications have been proposed to the basic MFCC algorithm for better robustness, such as by lifting the log-mel-amplitudes to an appropriate power (around 2 or 3) before applying the DCT and reducing the impact of the low-energy parts [4].
\nMFCC are cepstral coefficients derived on a twisted frequency scale centerd on human auditory perception. In the computation of MFCC, the first thing is windowing the speech signal to split the speech signal into frames. Since the high frequency formants process reduced amplitude compared to the low frequency formants, high frequencies are emphasized to obtain similar amplitude for all the formants. After windowing, Fast Fourier Transform (FFT) is applied to find the power spectrum of each frame. Subsequently, the filter bank processing is carried out on the power spectrum, using mel-scale. The DCT is applied to the speech signal after translating the power spectrum to log domain in order to calculate MFCC coefficients [5]. The formula used to calculate the mels for any frequency is [19, 22]:
\nwhere mel(f) is the frequency (mels) and f is the frequency (Hz).
\nThe MFCCs are calculated using this equation [9, 19]:
\nwhere k is the number of mel cepstrum coefficients, \n
The block diagram of the MFCC processor can be seen in Figure 1. It summarizes all the processes and steps taken to obtain the needed coefficients. MFCC can effectively denote the low frequency region better than the high frequency region, henceforth, it can compute formants that are in the low frequency range and describe the vocal tract resonances. It has been generally recognized as a front-end procedure for typical Speaker Identification applications, as it has reduced vulnerability to noise disturbance, with minute session inconsistency and easy to mine [19]. Also, it is a perfect representation for sounds when the source characteristics are stable and consistent (music and speech) [23]. Furthermore, it can capture information from sampled signals with frequencies at a maximum of 5 kHz, which encapsulates most energy of sounds that are generated by humans [9].
\nBlock diagram of MFCC processor.
Cepstral coefficients are said to be accurate in certain pattern recognition problems relating to human voice. They are used extensively in speaker identification and speech recognition [21]. Other formants can also be above 1 kHz and are not efficiently taken into consideration by the large filter spacing in the high frequency range [19]. MFCC features are not exactly accurate in the existence of background noise [14, 24] and might not be well suited for generalization [23].
\nLinear prediction coefficients (LPC) imitates the human vocal tract [16] and gives robust speech feature. It evaluates the speech signal by approximating the formants, getting rid of its effects from the speech signal and estimate the concentration and frequency of the left behind residue. The result states each sample of the signal as a direct incorporation of previous samples. The coefficients of the difference equation characterize the formants, thus, LPC needs to approximate these coefficients [25]. LPC is a powerful speech analysis method and it has gained fame as a formant estimation method [17].
\nThe frequencies where the resonant crests happen are called the formant frequencies. Thus, with this technique, the positions of the formants in a speech signal are predictable by calculating the linear predictive coefficients above a sliding window and finding the crests in the spectrum of the subsequent linear prediction filter [17]. LPC is helpful in the encoding of high quality speech at low bit rate [13, 26, 27].
\nOther features that can be deduced from LPC are linear predication cepstral coefficients (LPCC), log area ratio (LAR), reflection coefficients (RC), line spectral frequencies (LSF) and Arcus Sine Coefficients (ARCSIN) [13]. LPC is generally used for speech reconstruction. LPC method is generally applied in musical and electrical firms for creating mobile robots, in telephone firms, tonal analysis of violins and other string musical gadgets [4].
\nLinear prediction method is applied to obtain the filter coefficients equivalent to the vocal tract by reducing the mean square error in between the input speech and estimated speech [28]. Linear prediction analysis of speech signal forecasts any given speech sample at a specific period as a linear weighted aggregation of preceding samples. The linear predictive model of speech creation is given as [13, 25]:
\nwhere \n
The prediction error is given as [16, 25]:
\nSubsequently, each frame of the windowed signal is autocorrelated, while the highest autocorrelation value is the order of the linear prediction analysis. This is followed by the LPC analysis, where each frame of the autocorrelations is converted into LPC parameters set which consists of the LPC coefficients [26]. A summary of the procedure for obtaining the LPC is as seen in Figure 2. LPC can be derived by [7]:
\nBlock diagram of LPC processor.
where am is the linear prediction coefficient, km is the reflection coefficient.
\nLinear predictive analysis efficiently selects the vocal tract information from a given speech [16]. It is known for the speed of computation and accuracy [18]. LPC excellently represents the source behaviors that are steady and consistent [23]. Furthermore, it is also be used in speaker recognition system where the main purpose is to extract the vocal tract properties [25]. It gives very accurate estimates of speech parameters and is comparatively efficient for computation [14, 26]. Traditional linear prediction suffers from aliased autocorrelation coefficients [29]. LPC estimates have high sensitivity to quantization noise [30] and might not be well suited for generalization [23].
\nLinear prediction cepstral coefficients (LPCC) are cepstral coefficients derived from LPC calculated spectral envelope [11]. LPCC are the coefficients of the Fourier transform illustration of the logarithmic magnitude spectrum [30, 31] of LPC. Cepstral analysis is commonly applied in the field of speech processing because of its ability to perfectly symbolize speech waveforms and characteristics with a limited size of features [31].
\nIt was observed by Rosenberg and Sambur that adjacent predictor coefficients are highly correlated and therefore, representations with less correlated features would be more efficient, LPCC is a typical example of such. The relationship between LPC and LPCC was originally derived by Atal in 1974. In theory, it is relatively easy to convert LPC to LPCC, in the case of minimum phase signals [32].
\nIn speech processing, LPCC analogous to LPC, are computed from sample points of a speech waveform, the horizontal axis is the time axis, while the vertical axis is the amplitude axis [31]. The LPCC processor is as seen in Figure 3. It pictorially explains the process of obtaining LPCC. LPCC can be calculated using [7, 15, 33]:
\nwhere \n
Block diagram of LPCC processor.
LPCC have low vulnerability to noise [30]. LPCC features yield lower error rate as compared to LPC features [31]. Cepstral coefficients of higher order are mathematically limited, resulting in an extremely extensive array of variances when moving from the cepstral coefficients of lower order to cepstral coefficients of higher order [34]. Similarly, LPCC estimates are notorious for having great sensitivity to quantization noise [35]. Cepstral analysis on high-pitch speech signal gives small source-filter separability in the quefrency domain [29]. Cepstral coefficients of lower order are sensitive to the spectral slope, while the cepstral coefficients of higher order are sensitive to noise [15].
\nIndividual lines of the Line Spectral Pairs (LSP) are known as line spectral frequencies (LSF). LSF defines the two resonance situations taking place in the inter-connected tube model of the human vocal tract. The model takes into consideration the nasal cavity and the mouth shape, which gives the basis for the fundamental physiological importance of the linear prediction illustration. The two resonance situations define the vocal tract as either being completely open or completely closed at the glottis [36]. The two situations begets two groups of resonant frequencies, with the number of resonances in each group being deduced from the quantity of linked tubes. The resonances of each situation are the odd and even line spectra correspondingly, and are interwoven into a singularly rising group of LSF [36].
\nThe LSF representation was proposed by Itakura [37, 38] as a substitute to the linear prediction parametric illustration. In the area of speech coding, it has been realized that this illustration has an improved quantization features than the other linear prediction parametric illustrations (LAR and RC). The LSF illustration has the capacity to reduce the bit-rate by 25–30% for transmitting the linear prediction information without distorting the quality of synthesized speech [38, 39, 40]. Apart from quantization, LSF illustration of the predictor are also suitable for interpolation. Theoretically, this can be inspired by the point that the sensitivity matrix linking the LSF-domain squared quantization error to the perceptually relevant log spectrum is diagonal [41, 42].
\nLP is established on the point that a speech signal can be defined by Eq. (3). Recall
\nwhere k is the time index and p is the order of the linear prediction, \n
The \n
where \n
In order to compute the LSF coefficients, an inverse polynomial filter is split into two polynomials \n
where \n
In order to convert LSF back to LPC, the equation below is used [36, 41, 43, 44]:
\nThe block diagram of the LSF processor is as seen in Figure 4. The most prominent application of LSF is in the area of speech compression, with extension into the speaker recognition and speech recognition. This technique has also found restricted use in other fields. LSF have been investigated for use in musical instrument recognition and coding. LSF have also been applied to animal noise identification, recognizing individual instruments and financial market analysis. The advantages of LSF include their ability to localize spectral sensitivities, the fact that they characterize bandwidths and resonance locations and lays emphasis on the important aspect of spectral peak location. In most instances, the LSF representation provides a near-minimal data set for subsequent classification [36].
\nBlock diagram of LSF processor.
Since LSF represents spectral shape information at a lower data rate than raw input samples, it is reasonable that a careful use of processing and analysis methods in the LSP domain could lead to a complexity reduction against alternative techniques operating on the raw input data itself. LSF play an important role in the transmission of vocal tract information from speech coder to decoder with their widespread use being a result of their excellent quantization properties. The generation of LSP parameters can be accomplished using several methods, ranging in complexity. The major problem revolves around finding the roots of the P and Q polynomials defined in Eqs. (8) and (9). This can be obtained through standard root solving methods, or more obscure methods and it is often performed in the cosine domain [36].
\nWavelet Transform (WT) theory is centered around signal analysis using varying scales in the time and frequency domains [45]. With the support of theoretical physicist Alex Grossmann, Jean Morlet introduced wavelet transform which permits high-frequency events identification with an enhanced temporal resolution [45, 46, 47]. A wavelet is a waveform of effectively limited duration that has an average value of zero. Many wavelets also display orthogonality, an ideal feature of compact signal representation [46]. WT is a signal processing technique that can be used to represent real-life non-stationary signals with high efficiency [33, 46]. It has the ability to mine information from the transient signals concurrently in both time and frequency domains [33, 45, 48].
\nContinuous wavelet transform (CWT) is used to split a continuous-time function into wavelets. However, there is redundancy of information and huge computational efforts is required to calculate all likely scales and translations of CWT, thereby restricting its use [45]. Discrete wavelet transform (DWT) is an extension of the WT that enhances the flexibility to the decomposition process [48]. It was introduced as a highly flexible and efficient method for sub band breakdown of signals [46, 49]. In earlier applications, linear discretization was used for discretizing CWT. Daubechies and others have developed an orthogonal DWT specially designed for analyzing a finite set of observations over the set of scales (dyadic discretization) [47].
\nWavelet transform decomposes a signal into a group of basic functions called wavelets. Wavelets are obtained from a single prototype wavelet called mother wavelet by dilations and shifting. The main characteristic of the WT is that it uses a variable window to scan the frequency spectrum, increasing the temporal resolution of the analysis [45, 46, 50].
\nWT decomposes signals over translated and dilated mother wavelets. Mother wavelet is a time function with finite energy and fast decay. The different versions of the single wavelet are orthogonal to each other. The continuous wavelet transform (CWT) is given by [33, 45, 50]:
\nwhere \n
The WT coefficient is an expansion and a particular shift represents how well the original signal corresponds to the translated and dilated mother wavelet. Thus, the coefficient group of CWT(a, b) associated with a particular signal is the wavelet representation of the original signal in relation to the mother wavelet [45]. Since CWT contains high redundancy, analyzing the signal using a small number of scales with varying number of translations at each scale, i.e. discretizing scale and translation parameters as \n
where \n
There are several ways to discretize a CWT. The DWT of the continuous signal can also be given by [45]:
\nwhere \n
Thus, \n
The DWT of a discrete signal is derived from CWT and defined as:
\nwhere g(*) is the mother wavelet and x[n] is the discretized signal. The mother wavelet may be dilated and translated discretely by selecting the scaling parameter \n
The scaling and wavelet functions can be implemented effectively using a pair of filters, h[n] and g[n], called quadrature mirror filters that confirm with the property \n
Block diagram of DWT.
The DWT parameters contain the information of different frequency scales. This enhances the speech information obtained in the corresponding frequency band [33]. The ability of the DWT to partition the variance of the elements of the input on a scale by scale basis is an added advantage. This partitioning leads to the opinion of the scale-dependent wavelet variance, which in many ways is equivalent to the more familiar frequency-dependent Fourier power spectrum [47]. Classic discrete decomposition schemes, which are dyadic do not fulfill all the requirements for direct use in parameterization. DWT does provide adequate number of frequency bands for effective speech analysis [51]. Since the input signals are of finite length, the wavelet coefficients will have unwantedly large variations at the boundaries because of the discontinuities at the boundaries [50].
\nPerceptual linear prediction (PLP) technique combines the critical bands, intensity-to-loudness compression and equal loudness pre-emphasis in the extraction of relevant information from speech. It is rooted in the nonlinear bark scale and was initially intended for use in speech recognition tasks by eliminating the speaker dependent features [11]. PLP gives a representation conforming to a smoothed short-term spectrum that has been equalized and compressed similar to the human hearing making it similar to the MFCC. In the PLP approach, several prominent features of hearing are replicated and the consequent auditory like spectrum of speech is approximated by an autoregressive all–pole model [52]. PLP gives minimized resolution at high frequencies that signifies auditory filter bank based approach, yet gives the orthogonal outputs that are similar to the cepstral analysis. It uses linear predictions for spectral smoothing, hence, the name is perceptual linear prediction [28]. PLP is a combination of both spectral analysis and linear prediction analysis.
\nIn order to compute the PLP features the speech is windowed (Hamming window), the Fast Fourier Transform (FFT) and the square of the magnitude are computed. This gives the power spectral estimates. A trapezoidal filter is then applied at 1-bark interval to integrate the overlapping critical band filter responses in the power spectrum. This effectively compresses the higher frequencies into a narrow band. The symmetric frequency domain convolution on the bark warped frequency scale then permits low frequencies to mask the high frequencies, concurrently smoothing the spectrum. The spectrum is subsequently pre-emphasized to approximate the uneven sensitivity of human hearing at a variety of frequencies. The spectral amplitude is compressed, this reduces the amplitude variation of the spectral resonances. An Inverse Discrete Fourier Transform (IDCT) is performed to get the autocorrelation coefficients. Spectral smoothing is performed, solving the autoregressive equations. The autoregressive coefficients are converted to cepstral variables [28]. The equation for computing the bark scale frequency is:
\nwhere bark(f) is the frequency (bark) and f is the frequency (Hz).
\nThe identification achieved by PLP is better than that of LPC [28], because it is an improvement over the conventional LPC because it effectively suppresses the speaker-dependent information [52]. Also, it has enhanced speaker independent recognition performance and is robust to noise, variations in the channel and microphones [53]. PLP reconstructs the autoregressive noise component accurately [54]. PLP based front end is sensitive to any change in the formant frequency.
\nFigure 6 shows the PLP processor, showing all the steps to be taken to obtain the PLP coefficients. PLP has low sensitivity to spectral tilt, consistent with the findings that it is relatively insensitive to phonetic judgments of the spectral tilt. Also, PLP analysis is dependent on the result of the overall spectral balance (formant amplitudes). The formant amplitudes are easily affected by factors such as the recording equipment, communication channel and additive noise [52]. Furthermore, the time-frequency resolution and efficient sampling of the short-term representation are addressed in an ad-hoc way [54].
\nBlock diagram of PLP processor.
Table 1 shows a comparison between the six feature extraction techniques that have been explicitly described above. Even though the selection of a feature extraction algorithm for use in research is individual dependent, however, this table has been able to characterize these techniques based on the main considerations in the selection of any feature extraction algorithm. The considerations include speed of computation, noise resistance and sensitivity to additional noise. The table also serves as a guide when considering the selection between any two or more of the discussed algorithms.
\n\n | Type of Filter | \nShape of filter | \nWhat is modeled | \nSpeed of computation | \nType of coefficient | \nNoise resistance | \nSensitivity to quantization/additional noise | \nReliability | \nFrequency captured | \n
---|---|---|---|---|---|---|---|---|---|
Mel frequency cepstral coefficient (MFCC) | \nMel | \nTriangular | \nHuman Auditory System | \nHigh | \nCepstral | \nMedium | \nMedium | \nHigh | \nLow | \n
Linear prediction coefficient (LPC) | \nLinear Prediction | \nLinear | \nHuman Vocal Tract | \nHigh | \nAutocorrelation Coefficient | \nHigh | \nHigh | \nHigh | \nLow | \n
Linear prediction cepstral coefficient (LPCC) | \nLinear Prediction | \nLinear | \nHuman Vocal Tract | \nMedium | \nCepstral | \nHigh | \nHigh | \nMedium | \nLow & Medium | \n
Line spectral frequencies (LSF) | \nLinear Prediction | \nLinear | \nHuman Vocal Tract | \nMedium | \nSpectral | \nHigh | \nHigh | \nMedium | \nLow & Medium | \n
Discrete wavelet transform (DWT) | \nLowpass & highpass | \n— | \n— | \nHigh | \nWavelets | \nMedium | \nMedium | \nMedium | \nLow & High | \n
Perceptual linear prediction (PLP) | \nBark | \nTrapezoidal | \nHuman Auditory System | \nMedium | \nCepstral & Autocorrelation | \nMedium | \nMedium | \nMedium | \nLow & Medium | \n
Comparison between the feature extraction techniques.
MFCC, LPC, LPCC, LSF, PLP and DWT are some of the feature extraction techniques used for extracting relevant information form speech signals for the purpose speech recognition and identification. These techniques have stood the test of time and have been widely used in speech recognition systems for several purposes. Speech signal is a slow time varying signal, quasi-stationary, when observed over an adequately short period of time between 5 and 100 msec, its behavior is relatively stationary. As a result of this, short time spectral analysis which includes MFCC, LPCC and PLP are commonly used for the extraction of important information from speech signals. Noise is a serious challenge encountered in the process of feature extraction, as well as speaker recognition as a whole. Subsequently, researchers have made several modifications to the above discussed techniques to make them less susceptible to noise, more robust and consume less time. These methods have also been used in the recognition of sounds. The extracted information will be the input to the classifier for identification purposes. The above discussed feature extraction approaches can be implemented using MATLAB.
\nThe globalization process requires companies to incorporate the socio-environmental dimension into management as by enforcements or by social sanctioning. This process has broadened public and government concern about issues such as climate change, industrial pollution, food security, degradation of natural resources, among many others. As a consequence, it is ever more common to observe consumers demanding products and services from socially responsible companies, governments establishing policies, defining more restrictive regulations and also investors estimating the environmental and social risks of investments.
\nIn Brazil, more and more companies are including social, environmental and ethical issues in management and corporate strategies, invested resources in the social development of communities, in the quality of life of workers, in socio-environmental management, in the reduction of waste and sustainable innovation. There is an expressive movement of Corporate Social Responsibility and Sustainability involving a significant number of companies, civil society organizations, business associations, multilateral agencies and academia. Today, the Brazilian companies occupy a leading position on the international scene and are a reference for the management of Corporate Social Responsibility and Sustainability [1].
\n“Corporate Social Responsibility” and “Sustainability” turned to be part of official reports, considered into pieces of corporate communication, into executive statements, into the mission and values of companies. In sum, societal issues have invaded the business world and the consequence was a movement of private sector in order to respond to the expectations of society. Managers today are increasingly aware that they must consider the impacts of business in society, provide decent working conditions, quality and safe products, preserve the environment and be profitable and competitive.
\nHowever, there is no sense yet of what the integration of Sustainability and Social Responsibility in business really means and the implications for the organizational management. Many terms have been used by companies and academic community to address these concepts. As a consequence, concepts vary widely. Some common terms are Corporate Social Responsibility, Sustainable Enterprise, Stakeholder Management, Stakeholder Capitalism, Conscious Capitalism, Social Business, Social Impact Business or variety of other terms.
\nIn addition to this variability of terms, these concepts have been constantly evolving, which leads to necessity of presenting here the basic concepts to understand the tools and different approaches that integrate the environmental and social dimensions into the management.
\nThe chapter is structured in four sections. First it reviews the literature related to Sustainability and Corporate Social Responsibility (CSR). Then the main tools, standards and norms developed to integrated management are described. Third section presents the case studies. Fourth is the conclusion.
\nThe case studies are based in the literature revision, raising secondary data in documents, annual reports and, in-depth interviews with company’s key managers. The purpose is to present the evolution of the concepts of Corporate Social Responsibility and Sustainability and how companies are including the ethical, social, environmental dimensions in their strategies and changing their business models. In Brazil, there are many companies that apply standards based on CSR certifications, report following GRI principles and participate in the capital market by Sustainability Index Rankings [2]. Nonetheless, among these enterprises, some go beyond, and become reference not only for its strategies but as taking advantage of business opportunities that CSR and Sustainability have brought.
\nIt’ll be presented 3 case studies of successful companies that are benchmarking references to entrepreneurial environment in Brazil and discuss how they developed their CSR - Sustainability strategies and their results and opportunities for business.
\nNatura is a company in cosmetic products sector, founded in 1969, recognized for its pioneering role in socio-environmental activities and investments in product innovation, in particular the Ekos product line that extracts raw materials from the Amazon rainforest while preserving the forest. In 2016 Natura acquired the Australian cosmetics chain Aēsop. In 2017 it purchased The Body Shop chain and in 2019, it acquired Avon.
\nNative is a company in agro-industrial sector, part of the Balbo Organization (1946), which comprises six companies that produce sugar, alcohol, biodegradable plastic, electricity, animal feed and carbon certificates. The Native brand was launched in 2000 for organic sugar and today is a reference for the organic market, operating in 60 countries, being the world’s largest producer of organic sugar and alcohol.
\nBSBIOS is a vertical company of agro-energy sector, producing and transforming products and acting in the agribusiness chain. Founded in 2005, today is the largest national producer of biodiesel, operating also in international market.
\nThis section explores the main concepts of (2.1) corporate social responsibility based on theory of stakeholder, (2.2) of sustainability and (2.3) the management tools (norms, certification, reporting, indexes and indicators).
\nCase studies will be presented and then commented vis a vis their adherence to this framework, and about this landscape.
\nCorporate Social Responsibility (CSR) involves the relationship between enterprises and society and is strongly related to stakeholder management.
\nThe theoretical concept of Social Responsibility was originated in the 1950s [6], when formal literature on CSR grown up at United States and Europe. At that time, researchers’ concern was the excessive autonomy of business over society without proper responsibility for negative consequences of their activities, such as environmental degradation, labor exploitation and economic abuse. After some scandals, entrepreneurs started to engage in social activities to benefit the community, outside the scope of the companies’ businesses, just as a moral obligation, in a temptation of compensating negative impacts. It is worthy to point out that when this movement started to gain density, it created a social sanction. But at that moment, it was subtle, and companies acted pretty much by reaction.
\nAligned to this reactive behavior, the first vision was the shareholder model. This model, defended by the economist Milton Friedman (1985) [3], reflected a classic view of Social Responsibility, where it is to increase their profits, maximizing the shareholder value. He defines business as a self-search for profit: other considerations are society’s responsibility and not of business. If business in its searching for economic efficiency faces conflicts with the wider social concerns, then it is the government responsibility to restrain business through legal measures that may affect economical decisions [3].
\nThe evolution of prior model led to the stakeholder approach representing the firm’s concept on the perspective of contract theory [4]. It tries to define social responsibility largely related to the groups of interest, which affect or are affected by corporate actions. It incorporates the notion of obligation to those groups, besides shareholders and employees.
\nThe concept of CSR is associated with the recognition that decisions and results of companies’ activities reach a universe of social agents much broader than that composed by their owners and shareholders. Many of the business decisions and activities have consequences for the local community, the environment and other aspects of society that go far beyond the targed market [4].
\nUnder this approach, corporate responsibility can be considered the contract between company and society. There is a cycle of social responsibility that involves critical issues to business management in order to construct a sustainable society. In other words, it implies the convergence of efforts to balance the interests of stakeholders, leading to innovation and market prosperity to meet the social, environmental and ethical expectations of civil society.
\nThe stakeholder concept implies that enterprise activity is not just a market transaction, but also a web of cooperative and competitive relations of a great number of persons, organized in diversified ways. The enterprise is an organization in which and by which many individuals and groups spend efforts to reach their goals. The model personifies social responsibilities, identifying specific groups or people that business must address to when orienting social responsibility and actions, giving names and faces to society members. Incorporating social responsibility in actions is seen as a process composed of various phases, that Wheeler describe as (i) the inclusion of stakeholders or “stakeholding, (ii) the establishment of goals, (iii) the implementation of the process and (iv) evaluation of it; all of them, based on cooperation and on building the relationship with stakeholders. This relationship is based on trust and integrity, focused on long term sustainability [5, 6].
\nSustainability is a concept related largely to environmental concern, which involve economic and social dimensions. The debate polarizing economic growth and quality of life arose in the 1970, with the publication of the book Limits to Growth [7]. The dispute focused on traditional economic policies but set limits to income, considering population growth and which could not be met by exhausting natural resources and jeopardizing ecosystems. And this dissonance between quality of life and economic growth began to change in the 1980, when a review of concepts took place and sustainable development was adopted as the great motto for reconciling growth with quality of life [4, 7].
\nThe most relevant work on the concept of sustainable development is the Brundland Commission Report, produced as a summary of the United Nations’s (UN) World Commission on Environment and Development [8]. The concept at its origin had wide scope, associating development and environment, where development must be bearable, viable and durable. In other words, “a development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs” [8].
\nConcern about environmental resources and the promotion of environmental awareness has become consolidated from the United Nations Conference on Environment and Development (CNUMAD), also known as ECO 92, realized at Rio de Janeiro, Brazil. A document was established at this meeting with new parameters and actions for the reversal of continuous deterioration of environmental system. It was named Agenda 21 and began to contemplate general principles and turned to be the basis for specific principles of sustainable development [9].
\nIn 2012, RIO +20, a UN meeting to evaluate the 20 years after Rio-92, focused on themes of green economy in the context of sustainable development, poverty eradication and international governance for sustainable development. Green economy is the concept that has guided the formulation of public policies for sustainable development. The UNEP - United Nations Environment Program defines the green economy as one that results in the improvement of human well-being and social equity, reducing environmental risks and ecological scarcity. The concept of green economy does not replace that of sustainable development or sustainability; in practice, it is a development agenda that proposes a transformation in the way of facing the relationship between economic growth and development [10].
\nIn 2015, The Sustainable Development Goals (SDGs) (Agenda 2030) approved along the United Nations Summit on Sustainable Development brought together 17 global objectives and 169 targets with the aim of ending poverty by 2030 and universally promoting economic prosperity, social development and environmental protection. It designed a common agenda for society.
\nThe concept of sustainable development is—today—fully integrated into the concept of social responsibility: there will be no long-term economic growth without social progress and also without environmental care. All sides should be considered with equal weights as they are interrelated aspects. Just as economic growth does not sustain itself without social and environmental equivalence, corporate social or environmental programs will not be sustained if there is no economic balance of the company.
\nThe idea of sustainability for the organizations has been represented by the raising of expectations regarding social and environmental performance in addition to the economic, translated into the concept of triple bottom line (TBL) - Profit- Planet- People - created by Elkington in 1994. It refers to the adoption of new corporate postures committed to social and environmental issues, in addition to the common goal of companies to make a profit [11, 12]. The triple bottom line is a sustainability framework that examines a company’s social, environment and economic (no just financial) impact. \nFigure 1\n shows one of several ways this concept has been divulgated.
\nTriple bottom line [13].
The triple bottom line term had become part of the business lexicon and since then influences corporate accounting, stakeholder engagement and increasingly, strategy.
\nIt is still under course a transition in business management models, from single bottom line vision to the consideration of triple bottom line as a management system that will encompass the tripod of sustainability. The triple economic-socio-environmental dimension has been considered in the strategic business planning and in the definition of its goals and actions. Social Responsibility and Sustainability are complementary concepts and must not be interpreted as a new wave as occurred with other topics involving business management.
\nIt remains difficult to reconcile enterprise sustainability to increasing shareholder value objectives as the language of business and sustainability are still distant. The ambiguous and multidimensional nature of sustainability increases difficulty to connect them. To this end, Hart and Milstein have developed a sustainable value framework that links challenges of global sustainability to value creation by companies. In the sustainable value creation companies are challenged to minimize losses from current operations (combating pollution, mitigate environemental impacts), while redirecting their portfolios toward more sustainable technologies and skills (clean, ecoefficient, circular economy technologys) [14].
\nThese sustainable technological innovations are packaged as green technology management, where companies lower the net cost of meeting environmental regulations in order to create strategic advantages [15]. About this aspect, notwithstanding, it is worthy to detach that sometimes, companies absorb a pragmatic perspective oriented toward efficiency and hide fake greenery behaviors [16].
\nCompanies are also challenged to engage into broad interaction and dialog with external stakeholders, looking at current offerings (product responsibility, social inclusion, social business), as well as developing economically interesting solutions to future social and environmental problems (vision of sustainability). Taken together, as in a portfolio, such strategies and practices have potential to reduce costs and risks, elevate the reputation and legitimacy of the company, accelerate innovation and repositioning, and crystallize paths and trajectories of growth [14]. There are some studies relating eco-innovation with culture and social structures and some characteristics include knowledge diversity within company, persistent leadership, changes in bureaucratic structures and cultural indulgence [16].
\nEco-innovation is strongly influenced by cultural factors and may disrupt company’s business. It is different from incremental innovations, more often chosen by companies as represent lower risk and uncertainty. An interesting result points that the government’s role is fundamental to induce disruptive green innovations but not by monetary and fiscal incentives and mainly by R&D investments and others creative ways [16].
\nThe great challenge in this path is how to measure relevant impacts. Profit is very easy to measure, but social and environmental impacts are more diffuse and diversified to be captured by a simple set of indicators. In part, this difficulty explains the proliferation of tentative to apprehend the adherence of companies to what is expected by society.
\nMany management tools were developed as well as international standards, created by specific bodies or institutions, mainly non-governmental and multilateral organizations, in order to stablish and consolidate a set of acceptable, auditable standards and indicators regard to environmental, social and governance aspects.
\nThe adoption of standards and tools has been an important element of the CSR-movement in Brazil, and organizations in the country have turned to be pioneers in using voluntary certification schemes or contributed to development of tools, standards and certifications.
\nThe participation and mobilization of civil society were fundamental for the development of social and environmental responsibility movement, playing the role of catalysts of these precepts, among them, the Group of Foundations and Companies Institutes (GIFE), the Ethos Institute, the National Thinking of Corporate Bases (PNBE), the Abrinq Foundation for the Rights of the Child and the Brazilian Business Council for Sustainable Development, linked to the World Business Council for Sustainable Development (WBCSD) and the Global Compact Network in Brazil, GRI, focal point in Brazil.
\nThe most relevant tools for Brazilian companies are described as follows.
\nNorms and certifications are very important to drive internal processes management. Some of the main norms are that stablished by The International Standard Organization (ISO), as ISO 9000 and ISO 14000 Standards which certify companies for their managerial capacity (quality of the production process) and respect for the environment. National equivalent standards are the NBR 16000 and ISO 26000 which has been developed under common leadership of Brazil and Sweden. [1]
\nThe Social Responsibility standard – ISO 26000 is an integrative document of several internationally recognized management instruments in order to guide the decision-making process aligned with strategies and needs of organizations and stakeholders. Adherence to the standard is voluntary however, without certification.
\nCertification Schemes establish principles and criteria to attest the sustainability practices and products along the value chain, ensuring differentiation, origin identification and product quality assurance, based on parameters defined by each specific regulatory body.
\nSocio and Environmental labels consist on the declarations contained in the product labels, indicating their environmental, social and ethical attributes. It is a statement in which a nongovernmental organization (NGO), an institute or an association attest that a particular product has excellent environmental qualities, that their product is environmentally superior to others in the same category. The most known certification schemes are organic certification, forest production practices, fair trade, and socio biodiversity products and label. They are granted by Forest Stewardship Council FSC certification, Fair Trade, Brazilian Organic Food, accredited by the International Federation of Organic Agriculture Movements – IFOAM, Union for Ethical Biotrade (UEBT), the last, a certification process for socio-biodiversity chains.
\nThe UN Global Compact is a voluntary initiative based on CEO commitments to implement universal sustainability principles and to take steps to support UN goals. Launched in 2000, the United Nations Global Compact is both a policy platform and a practical framework for companies that are committed to sustainability and responsible business practices. As a multi-stakeholder leadership initiative, it seeks to align business operations and strategies with ten universally accepted principles in the areas of human rights, labor, environment and anti-corruption and to catalyze actions in support to UN Sustainable Development Goals (SDGs) [17].
\nThe UN SDGs provide an agenda for identifying further opportunities to develop socially and environmentally responsible products and services. Global Reporting Initiative, GRI the World Business Council for Sustainable Development (WBCSD), and UN Global Compact developed the SGS Compass Guide, to support companies in aligning their strategies with the UN SDGs and managing their contribution to the realization of them.
\nOther certification defines companies as “B” corporations when they have the purpose of generating positive social and environmental impact, with expanded responsibility for consideration of their stakeholders in the short and long-term decision and commitment to transparency for measuring and reporting of their triple impact. The system is managed by Blab, a non-profit organization founded in 2006, in United States and Canada. To obtain certification, companies are analyzed through a rigorous impact assessment process in multiple dimensions: governance, business model, consumers, employees and environment and they have to achieve a minimum score on the B Impact assessment. Once certified, they formally undertake the commitments to look at their long-term impact and consider their chain as a whole in decision making. Today, more than 2500 companies are certified as B Corporations, in more than 50 countries, among that, 140 are Brazilian [18].
\nA very important trigger for CSR-management on the national and regional level have been the so called “Ethos Indicators for Sustainable and Responsible Business”, a set of scaled indicators, to measure their performance and compare to benchmarks in the sector and countrywide on an annual basis. The Indicators are a self-assessment tool and are not meant to be a reporting or certification standard. Companies use the results internally and are not obliged to disclose the results. The application of the Indicators led many companies to the decision to adopt other CSR-certifications, in order to formalize policies and processes necessary to advance in their evaluation. More than 3.700 companies applied to the indicator’s measurement process [1].
\nThe GRI Sustainability Reporting Standards are the first and most widely adopted global standards for sustainability reporting. They were developed with multi-stakeholder in a consensual process aiming to help business, governments and other organizations to understand and communicate their impacts, provide a reporting system that promotes comparability between companies and present indicators on the three sustainability elements (economic, social and environmental), treated separately. Almost 15.000 companies follow and publish their sustainability reports, 519 are Brazilian companies [2].
\nIncreasingly, the directors of any publicly listed company have to explain how their company’s actions will impact its employees, customers, suppliers and the environment (stakeholders).
\nThe triple bottom line inspired multiple capital models focusing investors and financial analysts on Environmental, Social and Governance, known as ESG Approach. This framework is a set of criteria and filters that analysts, banks and investors use to assess whether companies and with which they operate are committed to the Environmental, Social and Governance aspects. Only those companies that achieve a certain score in this assessment, or submit plans to evolve, would be eligible to receive investments and/or loans.
\nThe Dow Jones Sustainability Index (DJSI World) launched in 1999, is one of the main indexes that represent the sustainable corporate quality of companies. The analysis and selection of the recipients is made by RobecoSAM, a company specialized in asset management and products and services in the field of sustainable investments. The index assesses economic, environmental and social performance data, as well as items such as corporate governance, corporate ethical responsibility and environmental concern. The methodology consists of rules that are converted into a general score, which determines inclusion in the DJSI. The world index brings together 317 companies from 58 industries spread across 29 countries, among them six Brazilian companies [19].
\nThe Index of Sustainable Enterprises of the Brazilian Stock Exchange, the so-called ISE Ranking, was created in 2005, being the fourth of its kind in the world. The process of construction and application of the questionnaires which is responded by publicly listed companies was formatted and applied by the Center of Sustainability Studies of Getulio Vargas Foundation (GVces) until 2018 (now ABC Associados is the technical partnership). Companies that own the 200 most liquid shares in B3 are invited to participate. Process of application of ISE starts each year in public consultations on the questionnaire and ends with the publication of the portfolio in November. Since its launch, demonstrates a very positive performance, outperforming significantly the average index of the stock exchange [20].
\nRather than take this as succession of models, where the shareholder approach was replaced by the corporate responsiveness approach and so on, we suggest that these approaches exists simultaneously, each of these models co-exist in the social integration approach, representing waves of influence in the dominant approaches, rather than temporally distinct conceptions. \nTable 1\n presents the evolution of the approach of CSR.
\nApproach | \nCSR Integration | \nCorporation Responsibility | \nManagement Style | \nManagement Focus | \n
---|---|---|---|---|
Shareholder | \nCorporate philanthropy | \nMaximize the shareholder value | \nDefensive | \nReduce risks and compliance | \n
Social Responsibility | \nCorporate responsiveness | \nManagement of stakeholders | \nReactive | \nReputation adapt to stakeholder demand Competitive advantage | \n
Stakeholder Organization | \nSociety at large | \nSocietal Responsibility | \nProactive Collaborative | \nPartnership Win- Win Solutions Competitive Advantage | \n
Sustainability Business Model | \nESG approach | \nSocietal Responsibility | \nProactive Innovative | \nRisk analysis Business Case Evaluate the return of Sustainability Integrate into all strategic and operational decisions | \n
Evolution of CSR approach.
Company | \nNatura | \nNative | \nBSbios | \n
---|---|---|---|
Origin | \nPublic co. | \nFamiliar | \nJoint Venture | \n
Founding Year | \n1969 | \n1946 | \n2005 | \n
Activity Field | \nCosmetics | \nOrganic Food | \nAgroenergy | \n
Revenues US | \n2,25 billion | \n106 million | \n836 million | \n
EBITDA % | \n17% | \n23% | \n3% | \n
Employees | \n6.820 | \n1.689 | \n291 | \n
Cases numbers and information.
It is worthy to register that the objective was not to exhaust all certifications, norms and other managerial instruments but just to present an overview of the landscape. Specific instruments will be commented along the cases.
\n\n\nTable 2\n summarizes some numbers and information that trace the profile of the three cases presented. They represent different experiences in different sectors and markets.
\nNatura is a Brazilian company, present in ten countries, which celebrated its 50th anniversary in 2019. It operates in the cosmetic products sector, maintain its market leadership in Brazil, and is the preferred brand in four of the six countries in which directly operates in Latin America. It is becoming the fourth largest group dedicated to the beauty sector and the largest direct selling in the world.
\nThe company has two industrial units, located in Cajamar (Sao Paulo), and Benevides (Para), opened in 2007, and third-party production in Brazil, Argentina, Colombia e México, with 12 distribution centers, 7 in Brazil and 5 in Latin America. It operates in the national market and in seven other countries (Argentina, Chile, Colombia, United States, France, Mexico and Peru). It involves 1.8 million personal and online consultants, 1,6 million engaged in the digital palatiform, 68.000 virtual stores. It has 489 physical stores with more than 5 million consumers [21].
\nIn fact, is one of the leading global companies when evaluated by sustainable business practices. It is recognized for its pioneering role in socio-environmental activities and investments in product innovation, as well by multiple international certifications. It was the first GRI reporting organization in Brazil; it was one of the first multinationals certified as a B Corp in December 2014; it was the first company to use refills in the Brazilian market. It has been listed on B3 (Sao Paulo Stock Exchange), on Corporate Sustainability Index (ISE) since 2005, on Dow Jones Sustainability Index (DSJI) for emerging markets; it was listed on the Corporate Knights ranking as the most sustainable companies in the world for 11 years and it was attested by Leaping Bunny certification, by cruelty free International (2018). It does not conduct tests on animals since 2006 - a common practice in cosmetic sector; the company’s packaging is certified by the Forest Stewardship Council (FSC) and it was certificated by Union for Ethical Bio Trade (UEBT), attesting the sustainability of the natural ingredients supply chain for its Ekos Product Line. It received an award at The Climate Neutral Now Category of the 2019 UN Global Climate Action Award.
\nNatura has integrated socioenvironmental practices into its business model since its founding in 1969. The sustainability culture is firmly embedding in the beliefs, values, mission and vision statements. The commitment and support of the top management is fundamental for in root culture - the founders in effect create a culture to support sustainability decisions. They are recognized as an active leadership in the management and inspired all the employees of the company, that are motivated to take sustainability obligations seriously, and engaged to promote resource efficiency, conservation and innovation. Sustainability is integrated with governance mechanisms, since operational level to the policies and company’s strategies, where its performance measurement and management systems include social and environmental indicators linked to remuneration in addition to financial performance. According to the supplier manager, sustainability is a cross-cutting theme throughout the company and serve as guidelines for all areas. The company also aligns their strategies with the United Nations Sustainable Development Goals and has identified the relevant SDGs aligned with their goals and mission, measuring and managing their impacts.
\nIn 1999 under the growing concern about the degradation of the environment by man action, company made the decision to incorporate ingredients of Brazilian biodiversity in the manufacture of its products. In addition to contributing to sustainable development through the transformation of socio-environmental challenges into business opportunities, the motivation was also the possibility of developing green technologies [22].
\nSustainable product-oriented supply chain management goes beyond risk-oriented and performance-oriented evaluation, whose focus is to avoid loss of reputation caused by suppliers’ problems. It is based on definitions of social and environmental performance standards to be disseminated throughout the supply chain for the manufacture of sustainable products [23].
\nNatura has a supply chain comprising 11,900 companies, from various sectors and sizes. It performs audit processes on critical suppliers and on new ones. In this process, the company has built partnerships for product development, such as packaging, (green plastic Brasken) and organic alcohol (Native). However, to develop a supply chain based on biodiversity is necessary to go further as it involves a relationship with the community’s suppliers, with diverse cultures, traditions and expectations.
\nThe great milestone in the company’s history was the creation of the Ekos line, with ingredients of Brazilian biodiversity into its products formulation, combining traditional knowledge and local wealth generation. This initiative marked the business model transformation to sustainable economy. Its launch in 2000 materialized the company’s pioneering purpose of integrating assets into its innovation platform. It was not only the creation of a new line of cosmetics, but a new business model based on the valorization of the standing forest and the socioeconomic development of the local population. The project had the Brazilian Amazon as its heart [21]. Amazon forest is considered the cradle of planetary biodiversity, there are four hundred billion trees distributed among 16.000 species, something about 300 species per hectare, is a huge carbon stock, equivalent to approximately a decade of global emissions – 330 billion tons of CO2, which, if released into the atmosphere via deforestation, would greatly exacerbate global climate change [24].
\nThe Ekos brand since its launch was a commercial success and has played a leading role in the company’s internationalization process, with high acceptance by consumers, contributing to Natura’s image and reputation, identified to sustainability and innovation. The transformations brought by Ekos products led to a chain reaction in other product categories, such as the vegetalization of all soap formulas, which became 100% free of animal fat, incorporating a higher concentration of vegetable oils produced in the Amazon forest. Over the years, other sub-brands started to use these raw materials in the composition of their products. In 2019, 17,7% of inputs came from the region and they are pursuing the target established by 2020 of 30% of socio biodiversity ingredients in the composition of new products in main categories [21, 25].
\nFor two decades, the company structured the socio biodiversity chains production. In the first year, the purchase of inputs was made indirectly, through intermediary suppliers. Soon, it was understood that the relationship with local people and communities (through cooperatives and associations) was an essential factor for maintaining biodiversity and company’s commitment to fair trade, benefit sharing and transparency in the supply chain.
\nIn 2011, Natura launched the Natura Amazônia Program (PAM), whose objective is to foster sustainable business and local development, always focusing on valuing socio-biodiversity, traditional knowledge and culture in the region. The program brought together the various initiatives, adopted the strategy of acting in sustainable territories, focusing on investments in priority geographic areas in the Amazon and respecting local vocations, resources and potentialities [25, 26, 27].
\nThe most recent 2050 Sustainability Vision targets, established by the company in 2014, reinforced Natura’s commitment to generate a positive impact. The company not only aspires for a positive environmental impact but also to adopt more sustainable practices relative to social biodiversity. The first milestone - 2020 Ambitions, were a set of targets related to biodiversity, waste carbon emissions, water, diversity and income generation. By 2019, it had achieved 70% of these commitments and it still strives to accelerate its efforts to fully achieve the stated targets. The plan for the next 10 years seeks to intensify global actions, such as the climate crisis, the protection of Amazonia, the defense of human rights and considering inclusion throughout its network. Its commitment is to contribute to the preservation of 3 million hectares by 2030 and make collective efforts to ensure zero deforestation of Amazonia by 2025. It anticipates investments of US$ 800 million over the next 10 years. The program’s investments are based on three pillars:
\nScience, Technology and Innovation: the principle is to promote academic and scientific research on the region’s assets and ethnobotany, looking for new raw materials, vegetable ingredients and other inputs, mainly derived from socio-biodiversity. Studies are carried out along the production chain, from rural producers up to the industrial scale. The objective is also to improve the production processes and sustainable technology employed, aiming at conservation, environmental regeneration and the aggregation of local value. In 2012 they inaugurated the Natura Innovation Center in the Amazon (NINA) in order to establish a network with local and global institutions focused on science, technology and innovation. Field research is supported by research institutions, NGOs, government agencies and benefiting companies, as well as a fundamental partnership with agroextractivist communities. Partners include the Federal University of Amazonas (Ufam), the National Institute of Amazonian Research (Inpa), the Amazonas State Research Support Foundation (Fapeam) and the Brazilian Agricultural Enterprise (Embrapa). In 2014, the industrial activity in Benevides was expanded with the inauguration of Ecoparque, an industrial park whose purpose is to attract partners to boost the generation of sustainable business in the Amazon. The German company Symrise, supplier of the company settled a unit there.
\nInstitutional Strengthening: empowering communities and articulating the networks of partner organizations in order to enable local development. They are multisectoral partnerships, investing in entrepreneurship, education and socio biodiversity production chains, and by fostering the formation of local development networks, contributing to the formation of leaders and supports the strengthening of associations and cooperatives. In addition, it promotes technical training aimed at sustainable agricultural management and production and invests in the aggregation of local value through assets processing by communities.
\nProductive Chains: structuring, improving and expanding sustainable production chains of sociobiodiversity, increasing and strengthening cooperatives and families to promote social inclusion and respect for diversity, generating work and income. Between 2007 and 2017, the company developed a certification process for socio-biodiversity chains together with the Union for Ethical Biotrade (UEBT). In 2018, it was the first company to obtain the UEBT certification seal. The seal attests that all plant ingredients in the formulation of Ekos products have undergone a system that ensure the maintenance of ecosystems, fair distribution of benefits by the use of biodiversity, respect for working conditions, income generation and local development, among other points. In 2007, Natura had launched the Carbon Neutral Program, with CO2 emission reduction targets through all the production chain, and offsets all the greenhouse gas (GHG) emissions possible to avoid. In its offsetting program, it supports projects that help keep the forest standing. Furthermore, it maintains a platform that share learnings from emissions neutralization with other companies and encourages the adoption of a low carbon economy. In addition, a collaborative platform has been developed for other companies to invest in greenhouse gas (GHG) compensation of their actions, based on the experience gained by the company in the implementation of the Carbon Neutral Program in the last decade. This program was unfolded in another initiative called Circular Carbon – the company’s first project to pay for carbon offset within the production chain. It has been made possible so far, the reduction of deforestation in the 126 properties through the remuneration of farmers families. Between 2013 and 2016, the deforestation rate for this territory was 0.93%; the goal is to reach zero deforestation at the end of 25 years. Between 2011 and 2019, it has been conserved 1.8 million of ha in partnership with supplier communities, non-governmental organizations, and public authorities, more than 3,6 million t CO2 equivalents off set. The supplier chain involves 39 communities, 6.197 families and 26 species of biodiversity, generating US 450 million of business volume for the regions.
\n“Ekos\' transformative premise is to build a story in which the entire chain involved —from production to final product consumption—benefits. The supplying communities gain with the extraction of assets and the discovery of new possibilities to undertake; the processors of raw materials gain from the preparation of new products; the consultants, with the revenue generated by the sale of cosmetics; and finally, consumers gain, having at their disposal innovative beauty items, with benefits for the body\'s care and with aggregate socio-environmental values” [21].\n
\nSugar and ethanol are part of Brazilian history. Sugar is the first exportable product since colonial times, and the oil crisis of 1970s created conditions that led to the implementation of the largest renewable fuel project, the National Alcohol Fuel Program, known as Proálcool. The investment of substantial amounts of resources, in both agriculture and industry increased the country’s production capacity and became the world’s largest producer and exporter of sugar and ethanol [28].
\nNative is an organic food company, part of the Balbo Organization (1946), which comprises six companies that produce sugar, alcohol, biodegradable plastic, electricity, animal feed and carbon certificates. The Native brand was launched in 2000 for organic sugar and today is a reference for the organic market, operating in more than 70 countries, being the world’s largest producer of organic sugar and alcohol.
\nThe Balbo Group company was founded in 1946, with the establishment of the Usina Santo Antonio (Santo Antonio Mill), in countryside of Sao Paulo. Today, the group operates three units: São Francisco (SP), Santana (SP) and Uberaba (MG), in 37.800 hectares, producing 7,2 million tons of cane, generating 315 thousand tons of sugar and 405 thousand cubic meters of ethanol. The plants are self-sufficient in energy, which is obtained from burning sugarcane bagasse. The co-generation of thermal, mechanic and electric energy is under the responsibility of Bioenergia, another company from Balbo Group, which supplies the proper energy needs and generates surpluses to grid, since 1987. The surplus energy traded is equivalent to the consumption of a city with 500,000 habitants.
\nIn 2000, they became partner in the creation of Biocycle, a new company dedicated to the increase, consolidation and development of technology, production and commercialization of Polyhydroxybutyrate (PHB), the biodegradable plastic originating from sugar cane.
\nThe case study refers to Native brand (Sao Francisco Mill) and does not involve the other companies in the group. The family has been in the sugar business since 1903 and is recognized as traditional industry group with entrepreneurial and innovative profile. But the great milestone to the group, was the research project that revolutionized the production system of sugarcane, broke the paradigms of the sugar and ethanol sector and gave rise to Native.
\nThe Native project changed the traditional process of sugarcane cultivation without the intensive use of fertilizers and agricultural pesticides, eliminated the fires, and so, implemented the organic cultivation. An important aspect was the transformation of sugar, a commodity product sold in bulk, to be marketed and exported as a premium packed product: organic sugar. According to Carvalho, Native is an emblematic and unique case study [29].
\nThis change was led by Leontino Balbo Junior, agronomist that joined the family business in 1986. He soon realized that the harvesting method often used, which depended on burning sugarcane straw before harvest, was incompatible with the modern tropical farming techniques he had just studied. In the search for new methods of agricultural production, he developed a new technique inspired by the natural methods of plant and animal production and named it as Ecosystem Revitalizing Agriculture (ERA). The research project was launched as Green Sugarcane Project, required an initial investment of US$25 million and it took almost ten years to convert plant to organic agriculture and become a business alternative for the company [29, 30].
\nThe project involved collaboration of important research institutions such as Embrapa, Satellite Monitoring and the Technological Research Institute (IPT-USP), plus the collaboration with the State of Sao Paulo universities such as USP, UNESP and UNICAMP [29].
\nThe purpose of the project was to maximize the potential of sugarcane cultivation by restoring fields to their natural state. Seven major changes in the production system were implemented: (1) elimination of the sugarcane burning; (2) the adoption of the biological control to avoid harmful insects; (3) the implementation of forest biological islands; (4) the elimination of agrochemical products consumption; (5) the rational utilization of agro-industrial waste as fertilizer; (6) the development of a system for the integrity of the soil; (7) and the adoption of green manure practices in the rotational crops.
\nThe project brought benefits to the company and stakeholders. Workers achieved good working conditions and kept their jobs, even with the mechanization of the harvest. The local community were benefited by reducing the negative impacts of traditional sugarcane production, generating income, jobs and improving quality of life. Among the environmental benefits were the improvement of volume and quality of water resources; the reduction of erosion of productive land; the reduction of greenhouse effect gases; and the increase of biodiversity in the areas of native vegetation.
\nSince 2002 researchers of several institutions under the coordination of the Embrapa Satellite Monitoring, have studied the fauna inventory and found significant results: over 330 species of mammals, birds, reptiles and amphibians have been identified in the surroundings of the production areas; several new species were observed; 49 of the species discovered were endangered. These results are 23 times greater than the biodiversity found in conventional sugarcane plantations in the same region [29].
\nThe Sao Francisco Mill produces ethanol, a biofuel that reduces the GEE emissions, which means a contribution to climate change combat. Furthermore, the new way of producing also reduces GHG emissions. The greenhouse gasses emissions were inventoried between 2006 and 2007. It was based on GHG protocol, considering the analysis of life cycle, from sugarcane farming, industrial phase of sugar and alcohol production, up to the transport, marketing and consumptions of products, both domestically and abroad. The emissions value found were lower than the average emissions normally found in the sugarcane business, due to the organic production methods [31].
\nThe electricity cogeneration system, from the combustion of sugarcane bagasse (fuel from biomass) is neutral in the emission of greenhouse gases. In 2020, Sao Francisco Mill has just been recognized as a producer of biofuels with the Renovabio certification - granted by the National Petroleum Agency (ANP). The certification recognizes that the plant contributes to the mitigation of Greenhouse Gases (GHG) and can receive 55,655 Decarbonization Credits (CBIOs) for sale on the stock exchange for 3 years, from the date of issue of the certificate.
\nDuring the evaluation process, the producer receives a score inversely proportional to the carbon intensity of the biofuel produced (Energy-Environmental Efficiency Score). Among all 220 certified plants that produce ethanol from sugar cane, this specific received the highest energy efficiency score (71.6). In addition to the score, the certification process for the production of biofuels takes into account the origin of the energy biomass as raw material for biofuel.
\nThe impact on business was significant. The Balbo’s group farms achieved yields 20% higher than the average of farms in their region, had cost savings when avoiding the purchase of chemical fertilizers and pesticides, and recycling the residues from his own farm. Undoubtedly, this process provided strategic advantages for the company, besides the development itself of the organic products market.
\nIn 1995, the company was consulted by North American Global Organics that was looking for organic sugar suppliers in Brazil. After initial contacts, representatives of Global Organics indicated that the production process developed by the Green Sugarcane Project was close to the one required to obtain the certificate of organic production demanded by them. The possibility of accessing the European and North American markets, both with raw and with processed sugar, encouraged the company to bet on organic production and seek certifications seals. The Native brand, launched in 1998, was the basis for the first product line whose main customers are the food industries of USA and Europe which resale the packaged product with their own brands [32].
\nThe certification seals are very important for the organic sector, gives reliability to an organic product, ensures that is produced according to standards of management and quality required worldwide for the organic products. It is only granted for production processes that do not use any chemical pesticides, industrial mineral fertilizers or genetic modified organisms. Furthermore, these processes should promote ecological balance in cultivated fields, and company should have positive social and economic impact on the community it serves.
\nThe first organic certification obtained was from the Farm Verified Organic (FVO) program, a private North American standard recognized by International Federation of Organic Agriculture Movements (IFOAM.) Due to the demand of a European customer, the Ecocert was also obtained. Over three decades it has obtained national, international certifications and labels, between organic, socio-environmental, fair trade and product quality, as shown in \nFigure 2\n.
\nNative certification timeline.
In 2006, demanded by Natura, a new opportunity arose to develop organic vegetal alcohol. Then Native gathered new customers and markets, especially for food, cosmetics and pharmaceutical industries, to use in the composition of drugs as to the production of deodorants and colognes, where it was not used until there. The production of alcohol began in 6,7 thousand tons (2007) and came to 14,2 thousand in 2018, and 9,9 thousand in 2019.
\nNative has become an organic food company, managing a production chain, with raw material suppliers, processors operating in various regions of Brazil and even abroad. In addition to organic sugar, it has developed several organic products, such as coffee, fruit juices, cocoa mix, breakfast cereals. It has a portfolio of 80 products, marketed in Brazil by the retail chain over 8 thousand points of sale. The internal market accounts for 30% of the company’s revenues. It is present in more than 70 countries, the main ones are the United States, Canada, in all countries of Europe, Japan, China, South Korea, Australia, New Zealand, Chile, Peru, Argentina, Bolivia, Colombia, South Africa, Saudi Arabia, Israel. It has become the world’s largest producer of organic sugar and alcohol.
\nFinally, there is a favorable scenario for organic production. Studies have shown that the production and consumption of organic products in the world has grown significantly, driven by the expansion of demand for organic food and beverages in the countries of Europe and North America, in addition to China. International demand for organic products tends to rise steadily over the next few years (since 2000 the average annual growth has being 11%), as these products have been progressively associated with higher levels of safety and health for consumers and lower social and environmental impacts [33]. In Brazil, despite the fact that consumer market is considered the largest in Latin America, production and consumption of organic products also increased, but at a slower rhythm, concentrated in middle class that require healthier foods [33]. \nTable 3\n shows the participation of all organic products in total revenue by 70% due to minor conversion of ethanol yet [34].
\nRevenues (BR$1000) | \n31/03/2020 | \n31/03/2019 | \n
---|---|---|
Organic Sugar | \n272.880 | \n276.187 | \n
Sugar | \n9.685 | \n13.729 | \n
Organic Ethanol | \n47.952 | \n42.828 | \n
Ethanol | \n99.427 | \n84.854 | \n
Other Organic Products | \n31.316 | \n30.643 | \n
Electric Energy | \n15.278 | \n15.262 | \n
Other Sales | \n4.271 | \n919 | \n
Services | \n6.027 | \n6.721 | \n
Grow Revenue | \n486.836 | \n471.143 | \n
Net Revenue | \n436.995 | \n424.161 | \n
EBTDA | \n128.867 | \n99.001 | \n
EBTDA % | \n29% | \n23% | \n
Product participation in revenue and EBITDA.
In mid-2004, Erasmo Batistela was waiting in a bank line when some farmers asked his opinion about biodiesel. He owned two gas stations in Colorado (Rio Grande do Sul) and knew little about the subject. He decided to research on the subject and after conducting a financial study with advice from Brasil Bank and specialized consulting, decided to invest in the area and founded BSBIOS in 2005. Due to logistical issues he chose the city of Passo Fundo (RS) and the City Hall provided the area to install the industry. In 2009 he acquired the Marialva (PR) unit and in 2011 Petrobras entered as partnership (50% of shares) [35].
\nThe company’s current corporate structure is the result of a Joint Venture between RP BIO and Petrobras Biocombustivel. RP BIO belongs to the ECB GROUP, captained by Erasmo Batistela which operates in the field of renewable energies and advanced biofuels. Petrobras Biocombustível is a wholly owned subsidiary of Petróleo Brasileiro S.A. - Petrobras.
\nIn Brazil, the production of biodiesel was supported by National Program for Production and Use of Biodiesel – PNPB, launched in December 2004 with the purpose of add the biodiesel into the Brazilian energy matrix. In 2008, the mixing of pure biodiesel to diesel oil became mandatory. The initial mixing of 2% was gradually increased to 3% (2009), 4%, 6%, 7%, 8% (2017), 10% (2018), and will reach 15% in 2023. With the focus on social inclusion and regional development, the main result of the first stage was definition of a regulatory framework. One of the milestones was the creation of the Social Fuel Seal by the Ministry of Agricultural Development – MDA, a certification granted to biodiesel producers who acquire percentages according to the raw material region from familiar agriculturists classified in the National Program Strengthening of Family Agriculture – PRONAF.
\nThe seal promotes the transfer of income to family farming, regional development and increased agricultural productivity. Industries benefit from federal tax exemption, access to better financing conditions and reputation gains. Farmer’s family receive a bonus and technical assistance from the producers. This policy benefits all community, government, industry and society, distributing wealth, bringing training to the field, adding new tools and technologies that contribute to the maintenance of young people in the field, paying attention to environmental issues. BSBIOS wholesomely promotes this policy by acquiring the necessary raw material directly from farming family cooperatives.
\nIn 2016 it was launched the national biofuel policy - RENOVABIO, established by Law no 13.576/2017, based on predictability, environmental, economic and social sustainability, compatible with market growth. It introduced a new strategic view to the sector, improving economic mechanisms that allowed the organization of a decarbonization credits market. It assigns carbon intensity ratings to individual producers, in which such decarbonization credits (CBIO) can be freely negotiated. The RenovaBio program represents a major step toward implementing Brazil’s commitment at COP 21 in Paris, putting in place the right set of measures to scale sustainable fuels and promote low carbon solutions for the transport sector.
\nCurrently there are 51 biodiesel producing plants authorized by the National Agency of Petroleum, Natural Gas and Biofuels (ANP) for operation in the country, corresponding to a total authorized capacity of 25.9 million liters/day. The national production that started in 2005 with a volume close to 700 thousand liters, reaches 5.90 billion liters in 2019.
\nThe definition of a legal and regulatory framework was fundamental to attract private investments in the biodiesel sector in Brazil. As a renewable fuel, biodiesel contributes to the reduction of carbon dioxide emissions into the atmosphere and the deceleration of global warming. From the economic point of view, in turn, the enormous potential for generating employment and income is highlighted, in addition to the positive contribution to the Brazilian trade balance by reducing imports of diesel.
\nBSBIOS is recognized for the quality of the services it provides, for supporting innovation, for socio-environmental engagement, as well as for regional development. It operates primarily in the production and distribution of biofuels, but also in the market for the sale of soybean meal, glycerin and sludge. It is the largest producer of Biodiesel in the country and operates in 14 Brazilian states, especially in Rio Grande do Sul and Paraná, as well as in six countries, with a strong participation in the production and distribution of biodiesel. BSBIOS produced in 2019, 604,827 m3 of biofuel, achieving the highest volume of biodiesel delivered, with a market share of 10.28% and a consolidated profit [36].
\nThe production of Biodiesel is related to the transformation of soybean into soybean meal and soybean oil. Since 2007 BSBios holds the Social Fuel Seal, where over 40% per year of the raw materials used in the production of biodiesel is acquired from family farming. The purchase of the product is made by family cooperatives, located in the south and northeast of the country, which have at least 50% of family farmers in their membership (family cooperatives) or are qualified as agricultural cooperatives that supply raw materials to biodiesel farmers.
\nIn 2019, BSBIOS acquired 4,425,608 ton of grain soybeans and 4014 ton of soybean oil, 7403 ton of corn and 5000 ton of coconut oil from family farming organized in 24 cooperatives. The company has a portfolio of more than 226 suppliers, operating daily in the available soybean market, seeking to supply the demand of 3200 tons per day.
\nIt also has a program and policy for receiving soybeans in order to mitigate the market storage deficit, receiving soybeans and crushing them during all 12 months of the year. BSBIOS offers to its suppliers the possibility to make exchange contracts for its products such as soy meal, soy husk and soy residue, adding value to the business and contributing to the production chain of region.
\nAnimal fats have been standing out in the production of biodiesel, not only in environmental aspects, but also because it is an important supply alternative. It is a sustainable economic alternative for both the supplier and the company. Animal fat consumed in the BSBIOS production process is certified by Renovabio, being the main component for the emission of CBios. The use of animal fat from BSBIOS has been growing annually. The use started in 2011, at the Marialva unit and, in Passo Fundo, in 2015. In 2019, it represented 26.7% of its production in Passo Fundo, and 42.43% in Marialva.
\nThe activities for the production of Biodiesel are so integrated that a product becomes input to another, generating a mutual benefits cycle on the entire chain and adding value.
\nIn 2018 and 2019 the GHG emissions inventory of Passo Fundo and Marialva units was carried out, following the GHG Protocol. Among the positive factors for GHG emissions, it was the use of modal transport in the unit of Passo Fundo, biomass in the boiler and the purchase of renewable electricity.
\nThe Soybean Meal produced by BSBIOS complies with Good Manufacturing Practices criteria, being in consonance with tolerable levels of raw material used, established by specific legislation, regarding pesticide residue and inorganic and microbiological contaminants. The products certified were GMP + B2 and GMP + B3, attesting its compliance with international requirements for Food Security in its production and marketing chain.
\nBSBIOS was certified by the National Biofuels Policy (Renovabio), being qualified to participate in the CBios (Decarbonization Credits) market, having certified the production of biodiesel from animal fats. The energy-environmental efficiency score (NEEA) was 81.3 grams of carbon dioxide to Passo Fundo and 81 grams to Marialva. This allows the plants to emit, respectively, one CBio for each 370.9 and 372.3 liters of biodiesel manufactured. Fuel distributors have an annual goal of acquisition of credits. The CBIOS expected to negotiate 28.7 million bonds in 2020.
\nSince 2016, it publishes sustainability reports following the GRI guidelines and applying the Ethos Indicators for Sustainable and Responsible Business. Since then, important advances can be observed, such as a stakeholder engagement structure, formulated and instituted policies and mapped critical suppliers. The Compliance, RenovaBio and Sustainability committees are created to involve the areas in management and decision-making, a necessary condition for sustainability to be consolidated in the organization. Bsbios have been recognized by the social investment in the development of the communities of Passo Fundo and Marialva, expanding and maintaining partnerships with local entities. All these actions contribute to building a culture of sustainability.
\nThe three companies are innovative and have established sustainability as a driver of their business model. Each one had its turning moment; Natura with the creation of the Ekos line, Native (Sao Francisco Mill) with the Green Sugarcane project and BSBIOS, when created a new biodiesel fuel. But context and corporate alignment were different for them.
\nNatura used all its skills and social responsibility management to set up a new business using biodiversity assets, a step ahead of incorporating sustainability to strategy, changing business model. Natura has demonstrated the potential of Amazon, despite all logistic challenges and other difficulties imposed by this region and culture. Restructured all production chain and broadened to all portfolio. It is possible to say that the company is always the best in the class, a benchmarking reference to other companies and society and had been more aggressively proactive. Sustainability is part of the company’s way of doing business and goes beyond, showing that sustainability is an opportunity to develop business and generate value for the company, stakeholders and to society for now and for the future.
\nThe case of Native is emblematic, recognized by innovation and entrepreneurship showing that organic agriculture can be more productive than conventional and that is possible to produce without the use of chemical, pesticide or genetically modified seeds. Native had to restructure its sugarcane cultivation process, along all productive chain, breaking paradigms of the sugar sector, one of the most traditional in the country. It invested for more than ten years to reap the results and went beyond, developing a new market for organic products. It showed that is feasible to meet quality standards, preserve the environment, generate sustainable value for the company and stakeholders, in the present as for the future.
\nThe Bsbios case demonstrated the importance of existing public policies to incentive and attract private resources to build business. The environment was favorable for the business, but the ability of an entrepreneur to identify the opportunity to undertake was fundamental. The history of the biodiesel sector is merged with BSBios history, as it was pioneer. BSBios went beyond short-term benefit and restructured all the production chain under the same paradigm.
\nWe can say that they are sustainability business cases, that investments made led to significant and relevant returns to justify them. The three cases are companies that occupy leadership positions and significant economic results. Some additional comments should be made about corporate culture.
\nThere is a consensus that implementing sustainability is fundamentally different than implementing other strategies in the organization. Goal should be simultaneously achieved as excellence in social, environmental and financial performance. For that, sustainability must be an integral component of corporate strategy, and some points can be detached.
\nLeadership must be committed and provide the resources to develop the organizational competences as sustainability strategies must be supported with mission, culture and people.
\nThe 3 companies have corporate culture of sustainability, but undoubtedly Natura has Sustainability in its DNA. Since emerged the Ekos line, sustainability can be seen at the leadership of its founders, at the way of being of the company, and how it outlined the Amazonia project. The impacts of the project had a huge reach, from the community to consumers spread in several countries where it operates and a team of consultants. The incorporation of sustainability in DNA is what allows it to go further in its ambition.
\nThe Native company has a strong leadership in the figure of Leontino and the family. The operational and technical culture linked to agrobusiness had to be reformulated to commercialize and create a marketing culture. Besides marketing, innovation was also in the operational area and circular economy technology.
\nSustainable product oriented in the management of supply chain was crucial for the tree companies. Nonetheless it was especially important for Natura and Native and the certifications schemes have been a way chosen by both to develop suppliers and communities. Without these certifications Native would not open the external market. But in other hand, it’s not easy to manage more than 20 certifications to ensure the quality standard of organic products.
\nBsbios has a strong leadership, a crop focused on the soybean and biodiesel sector of commodity market, where certifications meet market definitions. The tools of sustainability have not been used abroad; it has started this process with the preparation of the Sustainability report.
\nWe are in the new millennium, economic, social, environmental, ethical – societal – and business issues are in constant debate. The period is turbulent in the sense that it is characterized by significant changes in the economy, technology, society and global relations. “Climate change”, “Poverty Reduction”, “Pandemic Risks” have put Sustainability in the top of the biggest challenge for companies in the 21st century, as their business model is questioned. Socially responsible and sustainable companies are more structured to respond to this challenge.
\nThe three cases have challenges to face, also due to the political and institutional context, as there are problems of logistics infrastructure and market. However, all of the demonstrated that sustainability is a business opportunity, offering ways for lowering cost and risk, growing revenues and market share through eco-innovation, and generate sustainable value for the company and for society.
\nCases testify some characteristic present in prior studies. All of them promoted disruptive innovation with diversified knowledge, strong leadership, high managerial capacity, changes in their management structure and system and changes along their production chain. Nature has environment responsibility in its DNA and created Eko’s line under this principle since beginning. Then it was spread throughout portfolio. Native transformed a traditional familiar business and BSBios, a traditional product, both had typical Schumpeter’s entrepreneurship innovation.
\nAlthough it was not part of our focus, it is worthy to point out that these efforts were possible as their starting points were far from basic. The sum of investments was not negligible and maturity of them had long-term nature. A relevant condition besides individual starting points, could be national environment for developing these businesses, as certifications schemes, indexes, reports, seals, public research institutions, consumers market, all items considered into their strategies.
\nIn the meantime, it will be necessary profound changes in market rules to enable the environment, social and economic agenda and create investment opportunities that guarantee future generations. Changing the business model is not a role only for business, it evolves governments and civil society organizations and individuals. This desired disruptive innovation requires an environment integrating multiple agents for transforming what today is a niche into a general rule. There is a long way to track.
\nAuthors are listed below with their open access chapters linked via author name:
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\n\n\n\n\n\n\n\n\n\nJocelyn Chanussot (chapter to be published soon...)
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\n\nJunhong Chen 2017, 2018
\n\nZhigang Chen 2016, 2018
\n\nMyung-Haing Cho 2016, 2018
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\n\nFei Wei 2016-18
\n\nIoannis Xenarios 2017, 2018
\n\nQi Xie 2016-18
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She performed research in perioperative autotransfusion and obtained the degree of PhD in 1993 publishing Peri-operative autotransfusion by means of a blood cell separator.\nBlood transfusion had her special interest being the president of the Haemovigilance Chamber TRIP and performing several tasks in local and national blood bank and anticoagulant-blood transfusion guidelines committees. Currently, she is working as an associate professor and up till recently was the dean at the Albert Schweitzer Hospital Dordrecht. She performed (inter)national tasks as vice-president of the Concilium Anaesthesia and related committees. \nShe performed research in several fields, with over 100 publications in (inter)national journals and numerous papers on scientific conferences. \nShe received several awards and is a member of Honour of the Dutch Society of Anaesthesia.",institutionString:null,institution:{name:"Albert Schweitzer Hospital",country:{name:"Gabon"}}},{id:"83089",title:"Prof.",name:"Aaron",middleName:null,surname:"Ojule",slug:"aaron-ojule",fullName:"Aaron Ojule",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Port Harcourt",country:{name:"Nigeria"}}},{id:"295748",title:"Mr.",name:"Abayomi",middleName:null,surname:"Modupe",slug:"abayomi-modupe",fullName:"Abayomi Modupe",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/no_image.jpg",biography:null,institutionString:null,institution:{name:"Landmark University",country:{name:"Nigeria"}}},{id:"94191",title:"Prof.",name:"Abbas",middleName:null,surname:"Moustafa",slug:"abbas-moustafa",fullName:"Abbas Moustafa",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/94191/images/96_n.jpg",biography:"Prof. Moustafa got his doctoral degree in earthquake engineering and structural safety from Indian Institute of Science in 2002. He is currently an associate professor at Department of Civil Engineering, Minia University, Egypt and the chairman of Department of Civil Engineering, High Institute of Engineering and Technology, Giza, Egypt. He is also a consultant engineer and head of structural group at Hamza Associates, Giza, Egypt. Dr. Moustafa was a senior research associate at Vanderbilt University and a JSPS fellow at Kyoto and Nagasaki Universities. He has more than 40 research papers published in international journals and conferences. He acts as an editorial board member and a reviewer for several regional and international journals. His research interest includes earthquake engineering, seismic design, nonlinear dynamics, random vibration, structural reliability, structural health monitoring and uncertainty modeling.",institutionString:null,institution:{name:"Minia University",country:{name:"Egypt"}}},{id:"84562",title:"Dr.",name:"Abbyssinia",middleName:null,surname:"Mushunje",slug:"abbyssinia-mushunje",fullName:"Abbyssinia Mushunje",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Fort Hare",country:{name:"South Africa"}}},{id:"202206",title:"Associate Prof.",name:"Abd Elmoniem",middleName:"Ahmed",surname:"Elzain",slug:"abd-elmoniem-elzain",fullName:"Abd Elmoniem Elzain",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Kassala University",country:{name:"Sudan"}}},{id:"98127",title:"Dr.",name:"Abdallah",middleName:null,surname:"Handoura",slug:"abdallah-handoura",fullName:"Abdallah Handoura",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"École Supérieure des Télécommunications",country:{name:"Morocco"}}},{id:"91404",title:"Prof.",name:"Abdecharif",middleName:null,surname:"Boumaza",slug:"abdecharif-boumaza",fullName:"Abdecharif Boumaza",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Abbès Laghrour University of Khenchela",country:{name:"Algeria"}}},{id:"105795",title:"Prof.",name:"Abdel Ghani",middleName:null,surname:"Aissaoui",slug:"abdel-ghani-aissaoui",fullName:"Abdel Ghani Aissaoui",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/105795/images/system/105795.jpeg",biography:"Abdel Ghani AISSAOUI is a Full Professor of electrical engineering at University of Bechar (ALGERIA). He was born in 1969 in Naama, Algeria. He received his BS degree in 1993, the MS degree in 1997, the PhD degree in 2007 from the Electrical Engineering Institute of Djilali Liabes University of Sidi Bel Abbes (ALGERIA). He is an active member of IRECOM (Interaction Réseaux Electriques - COnvertisseurs Machines) Laboratory and IEEE senior member. He is an editor member for many international journals (IJET, RSE, MER, IJECE, etc.), he serves as a reviewer in international journals (IJAC, ECPS, COMPEL, etc.). He serves as member in technical committee (TPC) and reviewer in international conferences (CHUSER 2011, SHUSER 2012, PECON 2012, SAI 2013, SCSE2013, SDM2014, SEB2014, PEMC2014, PEAM2014, SEB (2014, 2015), ICRERA (2015, 2016, 2017, 2018,-2019), etc.). His current research interest includes power electronics, control of electrical machines, artificial intelligence and Renewable energies.",institutionString:"University of Béchar",institution:{name:"University of Béchar",country:{name:"Algeria"}}},{id:"99749",title:"Dr.",name:"Abdel Hafid",middleName:null,surname:"Essadki",slug:"abdel-hafid-essadki",fullName:"Abdel Hafid Essadki",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"École Nationale Supérieure de Technologie",country:{name:"Algeria"}}},{id:"101208",title:"Prof.",name:"Abdel Karim",middleName:"Mohamad",surname:"El Hemaly",slug:"abdel-karim-el-hemaly",fullName:"Abdel Karim El Hemaly",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/101208/images/733_n.jpg",biography:"OBGYN.net Editorial Advisor Urogynecology.\nAbdel Karim M. A. El-Hemaly, MRCOG, FRCS � Egypt.\n \nAbdel Karim M. A. El-Hemaly\nProfessor OB/GYN & Urogynecology\nFaculty of medicine, Al-Azhar University \nPersonal Information: \nMarried with two children\nWife: Professor Laila A. Moussa MD.\nSons: Mohamad A. M. El-Hemaly Jr. MD. Died March 25-2007\nMostafa A. M. El-Hemaly, Computer Scientist working at Microsoft Seatle, USA. \nQualifications: \n1.\tM.B.-Bch Cairo Univ. June 1963. \n2.\tDiploma Ob./Gyn. Cairo Univ. April 1966. \n3.\tDiploma Surgery Cairo Univ. Oct. 1966. \n4.\tMRCOG London Feb. 1975. \n5.\tF.R.C.S. Glasgow June 1976. \n6.\tPopulation Study Johns Hopkins 1981. \n7.\tGyn. Oncology Johns Hopkins 1983. \n8.\tAdvanced Laparoscopic Surgery, with Prof. Paulson, Alexandria, Virginia USA 1993. \nSocieties & Associations: \n1.\t Member of the Royal College of Ob./Gyn. London. \n2.\tFellow of the Royal College of Surgeons Glasgow UK. \n3.\tMember of the advisory board on urogyn. FIGO. \n4.\tMember of the New York Academy of Sciences. \n5.\tMember of the American Association for the Advancement of Science. \n6.\tFeatured in �Who is Who in the World� from the 16th edition to the 20th edition. \n7.\tFeatured in �Who is Who in Science and Engineering� in the 7th edition. \n8.\tMember of the Egyptian Fertility & Sterility Society. \n9.\tMember of the Egyptian Society of Ob./Gyn. \n10.\tMember of the Egyptian Society of Urogyn. \n\nScientific Publications & Communications:\n1- Abdel Karim M. El Hemaly*, Ibrahim M. Kandil, Asim Kurjak, Ahmad G. Serour, Laila A. S. Mousa, Amr M. Zaied, Khalid Z. El Sheikha. \nImaging the Internal Urethral Sphincter and the Vagina in Normal Women and Women Suffering from Stress Urinary Incontinence and Vaginal Prolapse. Gynaecologia Et Perinatologia, Vol18, No 4; 169-286 October-December 2009.\n2- Abdel Karim M. El Hemaly*, Laila A. S. Mousa Ibrahim M. Kandil, Fatma S. El Sokkary, Ahmad G. Serour, Hossam Hussein.\nFecal Incontinence, A Novel Concept: The Role of the internal Anal sphincter (IAS) in defecation and fecal incontinence. Gynaecologia Et Perinatologia, Vol19, No 2; 79-85 April -June 2010.\n3- Abdel Karim M. El Hemaly*, Laila A. S. Mousa Ibrahim M. Kandil, Fatma S. El Sokkary, Ahmad G. Serour, Hossam Hussein.\nSurgical Treatment of Stress Urinary Incontinence, Fecal Incontinence and Vaginal Prolapse By A Novel Operation \n"Urethro-Ano-Vaginoplasty"\n Gynaecologia Et Perinatologia, Vol19, No 3; 129-188 July-September 2010.\n4- Abdel Karim M. El Hemaly*, Ibrahim M. Kandil, Laila A. S. Mousa and Mohamad A.K.M.El Hemaly.\nUrethro-vaginoplasty, an innovated operation for the treatment of: Stress Urinary Incontinence (SUI), Detursor Overactivity (DO), Mixed Urinary Incontinence and Anterior Vaginal Wall Descent. \nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/ urethro-vaginoplasty_01\n\n5- Abdel Karim M. El Hemaly, Ibrahim M Kandil, Mohamed M. Radwan.\n Urethro-raphy a new technique for surgical management of Stress Urinary Incontinence.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/\nnew-tech-urethro\n\n6- Abdel Karim M. El Hemaly, Ibrahim M Kandil, Mohamad A. Rizk, Nabil Abdel Maksoud H., Mohamad M. Radwan, Khalid Z. El Shieka, Mohamad A. K. M. El Hemaly, and Ahmad T. El Saban.\nUrethro-raphy The New Operation for the treatment of stress urinary incontinence, SUI, detrusor instability, DI, and mixed-type of urinary incontinence; short and long term results. \nhttp://www.obgyn.net/urogyn/urogyn.asp?page=urogyn/articles/\nurethroraphy-09280\n\n7-Abdel Karim M. El Hemaly, Ibrahim M Kandil, and Bahaa E. El Mohamady. Menopause, and Voiding troubles. \nhttp://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly03/el-hemaly03-ss\n\n8-El Hemaly AKMA, Mousa L.A. Micturition and Urinary\tContinence. Int J Gynecol Obstet 1996; 42: 291-2. \n\n9-Abdel Karim M. El Hemaly.\n Urinary incontinence in gynecology, a review article.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/abs-urinary_incotinence_gyn_ehemaly \n\n10-El Hemaly AKMA. Nocturnal Enuresis: Pathogenesis and Treatment. \nInt Urogynecol J Pelvic Floor Dysfunct 1998;9: 129-31.\n \n11-El Hemaly AKMA, Mousa L.A.E. Stress Urinary Incontinence, a New Concept. Eur J Obstet Gynecol Reprod Biol 1996; 68: 129-35. \n\n12- El Hemaly AKMA, Kandil I. M. Stress Urinary Incontinence SUI facts and fiction. Is SUI a puzzle?! http://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly/el-hemaly-ss\n\n13-Abdel Karim El Hemaly, Nabil Abdel Maksoud, Laila A. Mousa, Ibrahim M. Kandil, Asem Anwar, M.A.K El Hemaly and Bahaa E. El Mohamady. \nEvidence based Facts on the Pathogenesis and Management of SUI. http://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly02/el-hemaly02-ss\n\n14- Abdel Karim M. El Hemaly*, Ibrahim M. Kandil, Mohamad A. Rizk and Mohamad A.K.M.El Hemaly.\n Urethro-plasty, a Novel Operation based on a New Concept, for the Treatment of Stress Urinary Incontinence, S.U.I., Detrusor Instability, D.I., and Mixed-type of Urinary Incontinence.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/urethro-plasty_01\n\n15-Ibrahim M. Kandil, Abdel Karim M. El Hemaly, Mohamad M. Radwan: Ultrasonic Assessment of the Internal Urethral Sphincter in Stress Urinary Incontinence. The Internet Journal of Gynecology and Obstetrics. 2003. Volume 2 Number 1. \n\n\n16-Abdel Karim M. El Hemaly. Nocturnal Enureses: A Novel Concept on its pathogenesis and Treatment.\nhttp://www.obgyn.net/urogynecolgy/?page=articles/nocturnal_enuresis\n\n17- Abdel Karim M. El Hemaly. Nocturnal Enureses: An Update on the pathogenesis and Treatment.\nhttp://www.obgyn.net/urogynecology/?page=/ENHLIDH/PUBD/FEATURES/\nPresentations/ Nocturnal_Enuresis/nocturnal_enuresis\n\n18-Maternal Mortality in Egypt, a cry for help and attention. The Second International Conference of the African Society of Organization & Gestosis, 1998, 3rd Annual International Conference of Ob/Gyn Department � Sohag Faculty of Medicine University. Feb. 11-13. Luxor, Egypt. \n19-Postmenopausal Osteprosis. The 2nd annual conference of Health Insurance Organization on Family Planning and its role in primary health care. Zagaziz, Egypt, February 26-27, 1997, Center of Complementary Services for Maternity and childhood care. \n20-Laparoscopic Assisted vaginal hysterectomy. 10th International Annual Congress Modern Trends in Reproductive Techniques 23-24 March 1995. Alexandria, Egypt. \n21-Immunological Studies in Pre-eclamptic Toxaemia. Proceedings of 10th Annual Ain Shams Medical Congress. Cairo, Egypt, March 6-10, 1987. \n22-Socio-demographic factorse affecting acceptability of the long-acting contraceptive injections in a rural Egyptian community. Journal of Biosocial Science 29:305, 1987. \n23-Plasma fibronectin levels hypertension during pregnancy. The Journal of the Egypt. Soc. of Ob./Gyn. 13:1, 17-21, Jan. 1987. \n24-Effect of smoking on pregnancy. Journal of Egypt. Soc. of Ob./Gyn. 12:3, 111-121, Sept 1986. \n25-Socio-demographic aspects of nausea and vomiting in early pregnancy. Journal of the Egypt. Soc. of Ob./Gyn. 12:3, 35-42, Sept. 1986. \n26-Effect of intrapartum oxygen inhalation on maternofetal blood gases and pH. Journal of the Egypt. Soc. of Ob./Gyn. 12:3, 57-64, Sept. 1986. \n27-The effect of severe pre-eclampsia on serum transaminases. The Egypt. J. Med. Sci. 7(2): 479-485, 1986. \n28-A study of placental immunoreceptors in pre-eclampsia. The Egypt. J. Med. Sci. 7(2): 211-216, 1986. \n29-Serum human placental lactogen (hpl) in normal, toxaemic and diabetic pregnant women, during pregnancy and its relation to the outcome of pregnancy. Journal of the Egypt. Soc. of Ob./Gyn. 12:2, 11-23, May 1986. \n30-Pregnancy specific B1 Glycoprotein and free estriol in the serum of normal, toxaemic and diabetic pregnant women during pregnancy and after delivery. Journal of the Egypt. Soc. of Ob./Gyn. 12:1, 63-70, Jan. 1986. Also was accepted and presented at Xith World Congress of Gynecology and Obstetrics, Berlin (West), September 15-20, 1985. \n31-Pregnancy and labor in women over the age of forty years. Accepted and presented at Al-Azhar International Medical Conference, Cairo 28-31 Dec. 1985. \n32-Effect of Copper T intra-uterine device on cervico-vaginal flora. Int. J. Gynaecol. Obstet. 23:2, 153-156, April 1985. \n33-Factors affecting the occurrence of post-Caesarean section febrile morbidity. Population Sciences, 6, 139-149, 1985. \n34-Pre-eclamptic toxaemia and its relation to H.L.A. system. Population Sciences, 6, 131-139, 1985. \n35-The menstrual pattern and occurrence of pregnancy one year after discontinuation of Depo-medroxy progesterone acetate as a postpartum contraceptive. Population Sciences, 6, 105-111, 1985. \n36-The menstrual pattern and side effects of Depo-medroxy progesterone acetate as postpartum contraceptive. Population Sciences, 6, 97-105, 1985. \n37-Actinomyces in the vaginas of women with and without intrauterine contraceptive devices. Population Sciences, 6, 77-85, 1985. \n38-Comparative efficacy of ibuprofen and etamsylate in the treatment of I.U.D. menorrhagia. Population Sciences, 6, 63-77, 1985. \n39-Changes in cervical mucus copper and zinc in women using I.U.D.�s. Population Sciences, 6, 35-41, 1985. \n40-Histochemical study of the endometrium of infertile women. Egypt. J. Histol. 8(1) 63-66, 1985. \n41-Genital flora in pre- and post-menopausal women. Egypt. J. Med. Sci. 4(2), 165-172, 1983. \n42-Evaluation of the vaginal rugae and thickness in 8 different groups. Journal of the Egypt. Soc. of Ob./Gyn. 9:2, 101-114, May 1983. \n43-The effect of menopausal status and conjugated oestrogen therapy on serum cholesterol, triglycerides and electrophoretic lipoprotein patterns. Al-Azhar Medical Journal, 12:2, 113-119, April 1983. \n44-Laparoscopic ventrosuspension: A New Technique. Int. J. Gynaecol. Obstet., 20, 129-31, 1982. \n45-The laparoscope: A useful diagnostic tool in general surgery. Al-Azhar Medical Journal, 11:4, 397-401, Oct. 1982. \n46-The value of the laparoscope in the diagnosis of polycystic ovary. Al-Azhar Medical Journal, 11:2, 153-159, April 1982. \n47-An anaesthetic approach to the management of eclampsia. Ain Shams Medical Journal, accepted for publication 1981. \n48-Laparoscopy on patients with previous lower abdominal surgery. Fertility management edited by E. Osman and M. Wahba 1981. \n49-Heart diseases with pregnancy. Population Sciences, 11, 121-130, 1981. \n50-A study of the biosocial factors affecting perinatal mortality in an Egyptian maternity hospital. Population Sciences, 6, 71-90, 1981. \n51-Pregnancy Wastage. Journal of the Egypt. Soc. of Ob./Gyn. 11:3, 57-67, Sept. 1980. \n52-Analysis of maternal deaths in Egyptian maternity hospitals. Population Sciences, 1, 59-65, 1979. \nArticles published on OBGYN.net: \n1- Abdel Karim M. El Hemaly*, Ibrahim M. Kandil, Laila A. S. Mousa and Mohamad A.K.M.El Hemaly.\nUrethro-vaginoplasty, an innovated operation for the treatment of: Stress Urinary Incontinence (SUI), Detursor Overactivity (DO), Mixed Urinary Incontinence and Anterior Vaginal Wall Descent. \nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/ urethro-vaginoplasty_01\n\n2- Abdel Karim M. El Hemaly, Ibrahim M Kandil, Mohamed M. Radwan.\n Urethro-raphy a new technique for surgical management of Stress Urinary Incontinence.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/\nnew-tech-urethro\n\n3- Abdel Karim M. El Hemaly, Ibrahim M Kandil, Mohamad A. Rizk, Nabil Abdel Maksoud H., Mohamad M. Radwan, Khalid Z. El Shieka, Mohamad A. K. M. El Hemaly, and Ahmad T. El Saban.\nUrethro-raphy The New Operation for the treatment of stress urinary incontinence, SUI, detrusor instability, DI, and mixed-type of urinary incontinence; short and long term results. \nhttp://www.obgyn.net/urogyn/urogyn.asp?page=urogyn/articles/\nurethroraphy-09280\n\n4-Abdel Karim M. El Hemaly, Ibrahim M Kandil, and Bahaa E. El Mohamady. Menopause, and Voiding troubles. \nhttp://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly03/el-hemaly03-ss\n\n5-El Hemaly AKMA, Mousa L.A. Micturition and Urinary\tContinence. Int J Gynecol Obstet 1996; 42: 291-2. \n\n6-Abdel Karim M. El Hemaly.\n Urinary incontinence in gynecology, a review article.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/abs-urinary_incotinence_gyn_ehemaly \n\n7-El Hemaly AKMA. Nocturnal Enuresis: Pathogenesis and Treatment. \nInt Urogynecol J Pelvic Floor Dysfunct 1998;9: 129-31.\n \n8-El Hemaly AKMA, Mousa L.A.E. Stress Urinary Incontinence, a New Concept. Eur J Obstet Gynecol Reprod Biol 1996; 68: 129-35. \n\n9- El Hemaly AKMA, Kandil I. M. Stress Urinary Incontinence SUI facts and fiction. Is SUI a puzzle?! http://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly/el-hemaly-ss\n\n10-Abdel Karim El Hemaly, Nabil Abdel Maksoud, Laila A. Mousa, Ibrahim M. Kandil, Asem Anwar, M.A.K El Hemaly and Bahaa E. El Mohamady. \nEvidence based Facts on the Pathogenesis and Management of SUI. http://www.obgyn.net/displayppt.asp?page=/English/pubs/features/presentations/El-Hemaly02/el-hemaly02-ss\n\n11- Abdel Karim M. El Hemaly*, Ibrahim M. Kandil, Mohamad A. Rizk and Mohamad A.K.M.El Hemaly.\n Urethro-plasty, a Novel Operation based on a New Concept, for the Treatment of Stress Urinary Incontinence, S.U.I., Detrusor Instability, D.I., and Mixed-type of Urinary Incontinence.\nhttp://www.obgyn.net/urogyn/urogyn.asp?page=/urogyn/articles/urethro-plasty_01\n\n12-Ibrahim M. Kandil, Abdel Karim M. El Hemaly, Mohamad M. Radwan: Ultrasonic Assessment of the Internal Urethral Sphincter in Stress Urinary Incontinence. The Internet Journal of Gynecology and Obstetrics. 2003. Volume 2 Number 1. \n\n13-Abdel Karim M. El Hemaly. Nocturnal Enureses: A Novel Concept on its pathogenesis and Treatment.\nhttp://www.obgyn.net/urogynecolgy/?page=articles/nocturnal_enuresis\n\n14- Abdel Karim M. El Hemaly. 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