Browsing by Issue Date, starting with "2015-11-24"
Now showing 1 - 20 of 15688
- Results Per Page
- Sort Options
Item type:Item, Análise das despesas de bens e serviços de educação e do desempenho escolar(Universidade Federal de São Carlos, 2015-11-24) ;Souza, Ricardo da Silva ;Figueiredo, Adelson Martins ;https://lattes.cnpq.br/2582161065438214https://lattes.cnpq.br/1907887583854517The object of this research is to work was analyze the spending cof individuals that consume goods and educational services, and school performance. The comparison of these two quantities was motivated by the expectations created by individuals in the acquisition of the such good in relation to the pursuit of their economic product that according Buckhan and Hannun (2001), is defined by mobility, occupational status and income. The product happens from the evolution of the individual through the gain or technical, academic and knowledge improvement, based on theories such as human capital (Schultz, 1973), market segmentation (Doering and Piore, 1971) and reproduction (Bordieu, 1978). From the empirical theories surveyed by Pinheiro and Fontoura (2007), Carvalho and Kassouf (2008), Santana and Menezes (2008), among others, which analyzed characteristics of individual or the individual’s families such as gender, color, inclusion of elderly, the and size of families that have influenced the distribution of funds for allocation of expenses and, indirectly, the expectations. In this context, a model for the evaluation of these characteristics associated with per capita income over expenditure using data from the Consumer Expenditure Survey (POF) was built. The model showed that the characteristics affect the educational spendings. The POF data about the expenditure data were compared to the data of educational performance of the tests conducted by the National Institute for Research Studies (INEP) such as Prova Brasil and ENEM, by geography region. The data for this comparsion showed similarities between five of six possible comparisons in relation to the Brazil average. These similarities may indicate in order to answers that satisfy the expectations of the individuals about educational productsItem type:Item, "Só vencem os fortes": a barbárie do trote na educação agrícola(Universidade Federal de São Carlos, 2015-11-24) ;Silva, Rosiane Maria da ;Zuin, Antônio Álvaro Soares ;https://lattes.cnpq.br/5543562307373287https://lattes.cnpq.br/4862541915156784SILVA, R.M. “Only the Strong Win”: The Hazing Barbarism in Agricultural Education. Dissertation (Doctorate in Education) - Programa de Pós-Graduação em Educação da UFSCar, Federal University of São Carlos, São Carlos, 2015. Traditional hazing practices in educational institutions date back to the 15th century in the first European universities and continue to the contemporary college hazing. Through literature review, gaps have been pointed related to this subject in the context of Brazilian agricultural schools. Adorno state that to “fight barbarism", hazing used in the German holocaust should be avoided. Based on this perspective, this research discusses the revival of the Nazi-fascist authoritarian personality nowadays. The research hypothesis is that the institutional culture medium in an agricultural school supports hazing barbarism. This study aimed to analyze the traditional hazing in the former Colégio Agrícola de Uberlândia (Agricultural College of Uberlândia) from 1969 to 1985, investigate the relations between institutional culture, hazing and the development of students' subjectivity in a hazing context. Therefore, the theoretical ground and discussions were based on the writings of Adorno, Horkheimer and collaborators about the "Authoritarian Personality Syndrome" and on Adorno's and Freud’s sociological works. The research methodology consisted of the semistructured interview with 10 participants. Empirical data were compared with the theory. The hypothesis was confirmed: the culture medium of Colégio Agrícola carries features that supports hazing. Five categories were applied to the interviews. The data were submitted to content and document analysis. It was observed that a committee consisted of students and public servants institutionalized hazing. Traditional hazing such as nicknaming and mud bathing were pointed. Due to hazing violence that resulted in some serious injuries, the hazing committee was disbanded in 1983. The institutionalized hazing expressed prejudices and the thinking of the ticket, by means of group exclusions and derogatory nicknames. The culture of machismo was detected in the viewpoint of student and hazing, masculine institutions. The Freudian ground to the concept of mass based the evidence that the student leaders were the ablest to conduct hazing; however, their involvement was reinforced by hazing institutional elements. The academic community was divided into segments in the context of hazing, but on the in general it was widely institutionalized. The conclusion is that hazing was an institutional phenomenon in Colégio Agricola de Uberlandia. Furthermore, hazing served students as a training for academic life and job market, by means of Taylorist and Fordist Technical Education. Hazing, courses and the teaching and learning processes of Technical Education during the time range under consideration was in compliance with military principles. In the last stage of this research, a CPI (Parliamentary Inquiry Commission) set up to investigate hazing in São Paulo universities revealed injuries and sexual abuses. To definitely stop hazing, it depends on a change in mind of students and leaders who disseminate prejudice and barbarism. Thus, the idea that "only the strong win", that shapes the human subjectivity and supports the hazing practices in the Technical Education, must be understood and immediately fought.Item type:Item, Investigação dos determinantes moleculares envolvidos na interação com os substratos de Tsa1 e Tsa2 de Saccharomyces cerevisiae(Universidade Federal de São Carlos, 2015-11-25) ;Breyer, Carlos Alexandre ;Matheucci Junior, Euclides ;https://lattes.cnpq.br/4503704334231412 ;Oliveira, Marcos Antonio dehttps://lattes.cnpq.br/2366751838985119Peroxiredoxins (Prx) are antioxidant proteins capable of decomposing a variety of hydroperoxide are very abundant in the cell and in eukaryotes are distributed in many cell compartments. The Prx are able to reduce their substrates using a highly reactive cysteine residue, named peroxidatic cysteine (CP-S-), which is maintained in the thiolate form as a consequence of the active site environment. In hydroperoxide decomposition process the CP is oxidized to cysteine sulfenic acid (CP-SOH). These vast majorities of these proteins are obligate dimers and has a second cysteine involved in the catalytic cycle, named resolution cysteine (CR), which forms a disulfide with CP and is often reduced by the enzyme thioredoxin (Trx). In addition to the reduction of Prx, the Trx are involved in several other biological processes such as cell growth, inhibition of apoptosis, transcriptional activation and DNA synthesis. When cell are exposed to oxidative stress, the CP can suffer overoxidation, forming species such as cysteine sulfinic acid (CP-SO2H) and cysteine sulfonic acid (CP-SO2H), which are not reduced by Trx. However, the CP overoxidation results in a change of the of Prx quaternary structure, resulting in the formation of high molecular weight structures (HMW) with molecular chaperone property and related to signal transduction triggered by hydroperoxides. Saccharomyces cerevisiae, have two isoforms of cytosolic Prx (Tsa1 and Tsa2), which shares high similarity (86% identity and 96% similarity), but differ in cellular abundance and expression levels. However, these enzymes are often considered redundant proteins. This study aimed the comparative analysis searching for functional and structural differences between Tsa1 and Tsa2. We evaluated Tsa1 and Tsa2 relationships with its oxidizing (hydroperoxide) and reducing substrates (Trx1 and Trx2). We also performed structural and kinetic analysis showed a significant relationship between maintaining the decameric structure the activity of enzymes which occurs by a series polar interactions but not equal to the active site amino acids. Highlighting the Thr44 of Tsa1 (Ser in Tsa2) which is involved in decamer structure stabilization by a CH-π interaction type with the Tyr77 and through the Oγ atom (from Thr) polar interactions with Phe45 and Leu41. Overoxidation susceptibility assays were performed using Tsa1 and Tsa2, and our results revealed that organic hydroperoxides were able to promote the CP overoxidation more efficiently when compared to H2O2. In turn, Tsa2 was very more resistant to CP overoxidation than Tsa1. This difference was also investigated concerning the catalytic triad Thr (Tsa1) to Ser (Tsa2). We generated mutants carrying reciprocal substitutions Tsa1T44S and Tsa2S44T and our results revealed that Tsa1T44S become more resistant to CP overoxidation and Tsa2S44T become more sensitive. The formation of high molecular weight structures (HMW) of Tsa1, Tsa2 and mutants were also investigated by size exclusion chromatography (SEC) and transmission electron microscopy (TEM). The Tsa1, Tsa2 and mutants HMW formation were analyzed by size exclusion chromatograph (SEC) and transmission electron microscopy (TEM). The results showed an increase of HMW formation after Trx system reaction using high concentrations of CHP. Were observed the stacking of the ring-shaped structures besides spherical species. Our results demonstrate that Tsa1 and Tsa2 proteins differ significantly in overoxidation susceptibility and HMW complex formation, indicating that these proteins have not redundant biological roles and small changes in active site promote high functional and structural changes in these enzymes.Item type:Item, Modelos alternativos em filas M/G/1(Universidade Federal de São Carlos, 2015-11-26) ;Prado, Silvia Maria ;Louzada Neto, Francisco ;https://lattes.cnpq.br/0994050156415890https://lattes.cnpq.br/1860827349387828The main aim of this work is to develop alternative queuing models to M/ G/l, in which arrivals follow a Poisson process, the total number of customers on the system and the total number of service channels are unknown. Our interest is just to observe the service channel that will offer the maximum or minimum service time. Wherefore, the service distributions are obtained from the composition of the Conwav-Maxwell-Poisson distribution truncated at zero, used to model the number of service channels, with the general distribution to the maximum and minimum service time. Thus, we obtain new distributions for service time, which are called Maximum-Conwav-Maxwell-Poisson-general, denoted by MAXCOMPG distribution, and Minimum-Conwav-Maxwell-Poisson-general, denoted by MINCOMPG distribution, consequently, we obtain the queue models M/MAXCOMPG/1 and M/MINCOMPG/ 1, respectively. As general distributions, we use the distributions exponential, Weibull and Birnbaum Saunders, To illustrate the proposed queue models, a simulation study is done and also real data are used.Item type:Item, Avaliação do grau de conhecimento e de aplicação das práticas do Quick Response Manufacturing : estudo comparativo transnacional(Universidade Federal de São Carlos, 2015-11-26) ;Marchesini, Antonio Gilberto ;Godinho Filho, Moacir ;https://lattes.cnpq.br/6136685270563354https://lattes.cnpq.br/8580028974493724In recent decades, the lead time reduction has become crucial to ensure the competition of enterprises. To address this, plus the abandonment of the tradit ional mindset based on efficiency and cost, to a mentality based on the reduction of lead time, companies began to incorporate in production management, principles and practices related, outstandingly, to the Quick Response Manufacturing (QRM) and the Lean Manufacturing (LM). In this context, this work aims, according to companies located in Brazil, Europe, and in the USA: (I) Verify if the degree of knowledge of the exclusive principles of QRM approach is equal to the degree of knowledge regarding common concepts to LM and QRM, (II) Verify if the degree of knowledge of the exclusive principles of QRM is greater due to factors such as training, dissemination, and awareness, (III) Check if the mindset based on economies of scale and cost reduction is still the main obstacle in the degree of knowledge of the companies surveyed, (IV) Verify if the concepts / elements / exclusive practices QRM less adopted by companies are those related to the change of economies of scale and cost-based mindset, still fairly entrenched in enterprises, (V) Verify if there is a significant difference between the degree of implementation of QRM practices due to the region studied, and (VI) Check whether the use of concepts / elements / practices of LM favors the adoption of QRM. For this, it was carried out an exploratory survey with an intentional sample of companies in these regions who wish to reduce the lead time. Data were analyzed using descriptive statistics and non-parametric tests. Concerning to the knowledge of the companies surveyed about the QRM, it was concluded that the level of knowledge about the exclusive practices of QRM is lower than in relation to the common practice at LM and QRM. The companies’ knowledge degree about the exclusive principles of QRM is possibly greater due to training, dissemination, and awareness and such factors are present more at the region of US. The mindset based on economies of scale and cost reduction is possibly the main barrier in the degree of knowledge in the companies surveyed. Concerning to the application of the QRM practices by companies surveyed, it was concluded that the extent of implementation of practices regarding the key concept "power of time" is lower than the other key concepts; there was not observed any statistically significant differences in the degree of implementation of QRM practices due to the region; the LM practices helps and contribute to the effort of implementation of QRM in companies that seek to reduce the lead time and; the concepts, elements and practices of QRM less adopted by companies are those related to the abandonment of the mindset based on economies of scale and cost reduction.Item type:Item, Uso de técnicas espectroanalíticas na avaliação de amostras de placas de circuito impresso de lixo eletrônico(Universidade Federal de São Carlos, 2015-11-26) ;Santos, Jozemir Miranda dos ;Pereira Filho, Edenir Rodrigues ;https://lattes.cnpq.br/3394181280355442https://lattes.cnpq.br/3701702963740025The increase in the consumer electronics equipment, especially, the cell has aroused the academia and society in general interest. Such equipment when obsolete became part of the so-called junk mail. Among the components of this type of waste, are the printed circuit boards (PCB’s). The concentration of toxic elements such as Cd, Cr and Pb these PCB has proved high. Because of this situation becomes important to develop analytical methodologies for evaluation of these dangerous elements in PCB. Among the analytical techniques available, the most used in the determination of these elements has been the ICP OES. The evaluation of samples PCB by ICP OES performed in this study revealed that in addition to the regulated elements by RoHS (Cd, Cr and Pb), are present in high quantities, the elements Ba (2% w/w) and As (400 mg/kg). The Cu element was the one with the highest levels of concentration in some samples amounted to 35% (m/m). The use of a multivariate analysis such as PCA, showed some correlation between certain elements of the PCB. This is observed for the elements Ba and Ni, and also to the As, Cr and Fe. Alternatively to the use of techniques that require a pretreatment of the samples comes LIBS. The obtained emission spectra provided important information about the composition of these PCB’s. An analysis of the spectra reveals the presence of emission lines of elements such as Ba, Cd, Pb, Ni, Cu, Fe, Sb, among others. The elements that provide the most intense emission lines were Cu and Ba. Based on the obtained reference concentration by ICP OES and the values of the area and intensity of the spectra obtained, the construction of multivariate calibration models has been proposed. Employing MLR was possible to build the multivariate calibration models for elements of interest. However, due to lack of verified correction, among the area parameters, maximum intensity and reference concentrations, the proposed models are considered viable. However, the use of LIBS for characterization purposes samples for the presence of an element, shown to be feasible from a qualitative point of view.Item type:Item, Fluoroquinolonas em amostras aquosas ambientais e em teleósteos : quantificação, avaliação de toxicidade e ensaios de biotransformação(Universidade Federal de São Carlos, 2015-11-27) ;Denadai, Marina ;Fernandes, Marisa Narciso ;https://lattes.cnpq.br/3021357484136942 ;Cass, Quezia Bezerrahttps://lattes.cnpq.br/9197210255594409The presence of drugs in the environment is an important issue in environmental risk assessment. The fluoroquinolones represent a class of compounds widely used in human and veterinary medicine, and its apport in the environment is continuous and lacking of monitoring. In this scope, it is important to evaluate the levels of these compounds in the environment and their toxicological impact on aquatic organisms. The present study discuss the development and validation of analytical methods for direct injection of samples using liquid chromatography coupled to mass spectrometry for multiresidual determination of fluoroquinolones in effluents of São Carlos – SP, and toxicity tests of ciprofloxacin (CIP) on fish. For monitoring of effluent samples, six fluoroquinolones were evaluated: CIP, gemifloxacin, moxifloxacin, ofloxacin, enrofloxacin, and norfloxacin (NOR). In effluent samples from wastewater treatment plant, CIP and NOR were quantified at concentrations of 195 ng L-1 and 270 ng L-1, respectively. Toxicity studies of CIP in species of O. niloticus exposed to different concentrations (0.5, 1.0 and 5.0 μg L-1) for periods of 7 and 14 days were evaluated by enzymatic and non-enzymatic systems. The biochemical assays demonstrated that fishes were not able to perform the detoxification, which was evidenced by the severe damage in their cells, especially on the gills and liver of the fishes. In vitro studies were carried out in species of O. mykiss, evaluating the biotransformation and bioaccumulative potential of some drugs commonly used in fish farms, including fluoroquinolones. The results using this in vitro model corroborate to the understanding of similarities and differences among different species of fish, as well as the assessment of environmental impact due to these compounds present in the environment.Item type:Item, Investigação do papel dos DNAs repetitivos na evolução cromossômica de espécies de Apareiodon (Characiformes, Parodontidae)(Universidade Federal de São Carlos, 2015-11-27) ;Traldi, Josiane Baccarin ;Moreira Filho, Orlando ;https://lattes.cnpq.br/3927076022470557https://lattes.cnpq.br/7195727455140933Parodontidae comprises the genera Parodon, Apareiodon e Saccodon, including 32 valid species. Of these, 16 occur in Brazil, and only ten defined at species level and one at genus level possess available chromosomal data. Due to the lack of cytogenetic data of Parodontidae species from the Tocantins-Araguaia and Jaguaribe river basins, this study analyzed by cytogenetic (classical and molecular) and molecular (DNA Barcode) methods six populations from the Tocantins-Araguaia river basin (Apareiodon cavalcante, Apareiodon sp.1, Apareiodon sp. 2, Apareiodon machrisi, Apareiodon argenteus and Parodon cf. pongoensis) and one species from the Jaguaribe river basin (Apareiodon davisi), in order to contribute to the knowledge of the genetic diversity of the family and assist in the understanding of chromosome evolution of this fish group. For all of the Apareiodon analyzed species was identified conservation in diploid number, distribution pattern of heterochromatic blocks and dispersion pattern of repetitive fraction WAp. However, karyotype formula, active nucleolar organizer regions, location of ribosomal genes 45S and 5S and distribution of satellite DNA pPh2004 sites shown to be variable among the species. The (GATA)n and telomeric (TTAGGG)n sequences exhibited similar pattern in A. cavalcante, Apareiodon sp.1, Apareiodon sp. 2 and A. machrisi. In this work, we described the first reports of ribosomal genes co-location for Parodontidae, being observed in A. cavalcante, Apareiodon sp.1, Apareiodon sp. 2, A. machrisi and A. davisi, and also the polymorphism involving the two ribosomal sequences of A. davisi. Analysis of histones H1 and H4 localization represent the first study of histone genes in the family and showed that the seven collected species have co-location of these sequences in a chromosome pair, occuring one additional site of H1 in A. davisi, and dispersed sites of this sequence by the chromosomes of the species. Chromosomal analysis and DNA Barcode performed in A. cavalcante, Apareiodon sp.1, Apareiodon sp. 2 and A. machrisi showed recent divergence among these individual groups, suggesting that Apareiodon sp. 2 is a possible new species, and Apareiodon sp. 1 is a population of A. machrisi. This work contributed to the knowledge of the genetic diversity of viii Parodontidae, presenting unpublished chromosomal and molecular data of this family. General analysis of chromosomal data of this family revealed conservation of karyotype macrostructure, however, more detailed analyzes indicated the occurrence of a great variety of chromosomal microstructural level. The results presented in this study, along with that available in literature, indicated that this microstructure chromosome diversity is clearly linked to repetitive DNAs dynamics.Item type:Item, Identificação de padrões de metadados para preservação digital(Universidade Federal de São Carlos, 2015-11-27) ;Formenton, Danilo ;Castro, Fabiano Ferreira de ;https://lattes.cnpq.br/7124931056289027 ;Gracioso, Luciana de Souzahttps://lattes.cnpq.br/4898201916360294With the significant increase in the production and acquisition of digital content, initiatives for the recovery and long-term data preservation are being created and studied in the light of changes in technological storage and access to information resources. In this context, the aim of the research was to verify to what extent standards or metadata schemas for digital preservation have been discussed by the field of Information Science and related fields (Archival Science, Library Science, Museology etc.), pointing out how these schemas could meet the structuring demands of institutional repositories more adequately for the preservation of digital documents. In terms of method, an exploratory study, based on bibliographic and documentary research relating to standards or metadata schemes used in the scope of digital preservation, was conducted. A comparative analysis of standards or metadata schemes identified in the literature was carried out, based on core metadata elements considered for digital preservation. Regarding the results, a theoretical technical framework is presented, that seeks to systematize standards or metadata schemes applicable to digital preservation, such as DC, MODS, EAD, ANSI/NISO Z39.87 or MIX, METS and PREMIS and at the same time, that may be relevant for modeling digital institutional repositories. It was found that the guarantee of long-term digital preservation will only be possible with the effective implementation of standards and metadata schemas, because it is they that define the description, representation, consistency and persistence of the digital object/resource in the information environment, as well as determining interoperability between systems. There is no way to say which of the existing metadata schema fully ensures digital preservation but that it is indeed possible to have different standards working together in order to complement the effective registration of the information required in managing preservation and usable access over time of digital objects/resources.Item type:Item, Síntese in situ pelo método Pechini e sinterização por métodos não convencionais de compósitos magnetoelétricos particulados(Universidade Federal de São Carlos, 2015-11-27) ;Perdomo, Claudia Patrícia Fernandez ;Garcia, Dulcinei ;https://lattes.cnpq.br/5236758856687873 ;Kiminami, Ruth Herta Goldschmidt Aliagahttps://lattes.cnpq.br/7643216999108223This thesis aimed the synthesis via in situ by Pechini method and the sintering by conventional and unconventional methods (microwave and spark-plasma) of particulates magnetoelectrics composites (ME) of ferroelectric systems 0,9Pb(Zn1/3Nb2/3O3)-0,1PbTiO3 (PZN-PT) and 0,675Pb(Mg1/3Nb2/3O3)- 0,325PbTiO3 (PMN-PT), combined with cobalt ferrite Fe2CoO4 (FCO), with 0,1≤x≤0,5 molar ratios of biphasic ferroelectric/ferromagnetic, aiming high densification, reduction in average grain size and microestructural controlling of constituent phases. The synthesis in situ by Pechini of both PZN-PT/FCO and PMN-PT/ FCO) composite systems was developed in an unprecedented way in this work, resulting successfully in two-phase systems without the presence of secondary phases, highly homogeneous distribution of constituent phases with an average size of nanometric particles and ensuring reproducibility of the method. The presence of FCO phase favored the 100% stabilizing of perovskite phase in PZN-PT system. Both (0,9PZN-0,1PT/FCO e PMN-0,325PT/FCO) systems, after conventional sintering, microwave and SPS showed no formation of secondary phases indicating that the stability of the perovskite phase in the PZN-PT and PMN-PT ferroelectrics phases were ensured. Unconventional sintering methods (microwave and SPS) allowed reach a percolation threshold in the compositions with high FCO content, beyond narrow distribution and lower average grain size favoring the obtaining of fine microstructures. All particulate composite systems sintering by the three techniques presented high resistivity values, even with the presence of high ferrite content which allowed its magnetoelectric characterization at low frequencies. Thus, the high degree of difficulty in getting the magnetoelectric composites, and the absence of studies of sintering microwave and spark-plasma and their effect on the physical and microstructural properties were the main motivation for the development of this work.Item type:Item, Síntese, caracterização e estudo das propriedades fotoeletrocatalíticas dos fotoanodos BiVO4 e BiVO4/FeOOH(Universidade Federal de São Carlos, 2015-11-27) ;Araújo, Moisés Albuquerque de ;Mascaro, Lucia Helena ;https://lattes.cnpq.br/9130022476352844https://lattes.cnpq.br/1921841936471127Among the variety of semiconductor materials investigated to apply in electrochemical cells bismuth vanadate (BiVO4) is one of the candidate which would be used as photoanode. Thus, this study aimed to synthesize thin films of BiVO4 and their modification with a thin layer of iron (III) oxyhydroxide (FeOOH) by photodeposition and study their photoelectrocatalytic properties. The optimization of BiVO4 synthesis condition was assessed by a factorial design 23 and an analysis of univariate type. The parameters studied were annealing temperature (500 and 600 °C), calcinations time (30, 60, 150 and 270 min.), solvent type employed for dissolving the BiVO4 precursor reagents (poly ethylene glycol 300-PEG 300, PEG 400, ethylene glycol-EG, mixture 1:1 by volume of PEG 300 and EG), deposition method of BiVO4 films (dropping and spin coating) and method of drying layers (heating at 500 °C, heat gun and no drying). From the optimized condition BiVO4 film was prepared by dissolving bismuth (III) nitrate and ammonium metavanadate in a mixture of 1:1 by volume of EG and PEG 300, it was deposited onto glass containing FTO by spin coating and then calcinated directly at 500 °C for 60 min. The photodeposition was carried out in the mixture FeSO4 and sodium citrate medium both 1 mmol L-1 and pH 4.7 by applying the open circuit potential for 5 min. and under light incidence. and then polarizing at 1.2 V for 1 min. BiVO4 and BiVO4/FeOOH films were characterized by XRD, SEM, EDS, UV-vis, voltammetry (cyclic and linear) and electrochemical impedance spectroscopy. The results reveled that photocurrent values increased 2.5 times at 0.71 V and the on set potential shifted to less positive value in the presence of FeOOH, also there was a considerable reduction of the charge transfer resistance in the interface photoanode/solution. The bare BiVO4 films were photostable during the illumination time studied which was 4 h. However, the modified films did not show the same behavior, the photocurrent value decreased 29% after 4 h illuminated. The results in the sulphite presence showed that photocurrent value for bare BiVO4 and BiVO4/FeOOH were less than the maximum photocurrent value which would achieve for this materias.Item type:Item, Prática pedagógica na educação infantil: análise de artigos publicados em periódicos da área de educação(Universidade Federal de São Carlos, 2015-11-27) ;Silva, Ketiene Moreira da ;Lima, Emília Freitas de ;https://lattes.cnpq.br/5515637339275988https://lattes.cnpq.br/1048166315622270Historical background of educational services for institutionalized children in Brazil resulted in the pedagogical proposal that the regulatory documents drawn up by the Ministry of Education (MEC) currently guiding pedagogical practices to ensure: educating, caring and playing in daycare centers and pre- schools - axes that determine the fundamental conditions for the socialization and development of children's language. We propose in this qualitative research, reflection on teaching practice in early childhood education, after five years of publication of the National Curriculum Guidelines for Early Childhood Education (BRAZIL, 2010), performing a literature search in eighteen academic journals in the field of education classified in Qualis A 1 and Qualis A2, in order to identify through searches of their databases, publications of scientific articles with the following descriptors: education, care, play and languages. The results we found are described and analyzed in the body of this research. The twelve items identified in the periodic debate issues that can be identified in the curriculum guidelines as the specifics of educational work for children's education on the transition from preschool to elementary school, the acquisition of written language, the power relations that groups of children set in early childhood education, the hygienist perspective associated with the care, the subjectivities in the process of playing and use different languages for children.Item type:Item, O processo criativo em Segredo de Estado, de Antonieta Dias de Moraes : marcas do militarismo e representações sociais(Universidade Federal de São Carlos, 2015-11-30) ;Menezes, Ivanildes Regina de ;Costa, Luzia Sigoli Fernandes ;https://lattes.cnpq.br/8110248272001369https://lattes.cnpq.br/1170511435777665This research proposes investigate the creative process of Secret of State (1998), by Antonieta Dias de Moraes (1915-1999) and aims to show traces of Brazilian military context in order to capture the ways of living and thinking of the society immersed in the violent period of dictatorship in Brazil. The memory of this time must be constantly remembered due to the enhancement of the democracy which we live now, even though dark reflexes of that regime persist in our society nowadays, more than 30 years later. Dominated by shadows in diverse sectors, Brazilian society have found a way of resistance in the arts, which produced artworks of different kinds over distinct strategies, either inside the country and, many times, out of it. In this case, those works were produced by political deportees who left their country by force or by choice, in order to continue their creations during the dictatorial regime. It was during the military dictatorship period, especially in the most violent moment of it – Médici’s government (1968-1974) –that the writer Antonieta Dias de Moraes represented social problems in the majority of her books, published firstly abroad and only afterwards in Brazil. Considered a classic of children’s literature, Secret of State tells about the participation of Tonico’s gang in São Paulo State Revolt of 1924, which began in the same state capital, led by mid-rank military officers and by Public Force. Their claim was to justice and the end of corruption. In the book,Tonico’s gang helped the army with bravery and perspicacity, providing a valuable contribution to the Revolt. Conceived during the dictatorial repression, this book describes a scenario where children pursued fairer living conditions, in which we may read, between the lines, the possibility of identification of the historical context (1924) and the period of repression and resistance lived by the nation (60’s and 70’s decades). Based on heterogeneous objects of research, composed by book manuscripts, drafts, copies, fragments, letters, newspaper clippings and illustrations, this research, thus, proposes to investigate the creative process of Secret of State. The methodology covers the initial identification of the objects, the making of a genetic critic dossier of the book’s composition and the analysis of the records left by the author in the different pieces that integrate her personal archive located in the historic farm Santa Eudóxia (São Carlos, São Paulo State). So, this work is an effort to create the minimum requirements for the comprehension of the book’s genesis and its representation of social reality. Added to the genetic analysis, some reflections are supplied by Bakhtin’s theory of language, which tells about the different voices present in a textual object. These voices are permeated by different styles and intentions, marked by their emerge in a certain social, political and economic context. Finally, this work concludes that Secret of State, written by Antonieta Dias de Moraes during the military dictatorship period, is a book that enriches the list of literary texts in which are recognizable the popular denouncement and discontentment, in addition to other marks that every authoritarian regime leaves in society, which are thematized by those who oppose the imposed order by the means of artistic language.Item type:Item, Mudanças de uso da terra na paisagem cultural. Caso de estudo : município de São Carlos, SP(Universidade Federal de São Carlos, 2015-11-30) ;Souza, Imyra Maíra Martins de ;Fushita, Ângela Terumi ;https://lattes.cnpq.br/1078644223231926 ;Santos, José Eduardo doshttps://lattes.cnpq.br/8533387365058570The complexity and interaction of environmental problems have directed the landscape structure studies, which emphasizes broad spatial scales related to ecological effects of spatial patterns of the ecosystems. Changes in the landscape result in the impairment of natural capital and ecosystem functions that regulate or modulate the goods and services provided to human wellbeing, supported by the properties and/or physical, biological or chemical processes that occur in natural systems. For understanding the trajectories of natural and anthropogenic processes of landscape, many studies have addressed the models based on land use and land cover dynamics, which reflect the potential of the landscape transformation and thus assess implications for environmental sustainability scenario to over time. Thus, this thesis aims to draw up scenarios and projections of landscape patterns resulting from the interaction society and nature, based on structural indicators of the municipality of San Carlos landscape, basing the discussion on changes in natural capital in sustainable capacity in provide ecosystem services.Item type:Item, Friction spot joining of aluminum alloy 2024-t3 and carbon-fiber-reinforced polyphenylene sulfide composite laminate with additional pps film interlayer(Universidade Federal de São Carlos, 2015-11-30) ;André, Natália Manente ;Amancio-Filho, Sergio de Traglia ;https://lattes.cnpq.br/7609614295379921 ;Canto, Leonardo Brescianihttps://lattes.cnpq.br/7287108960864123Friction Spot Joining (FSpJ) is a prize-winning joining technique for hybrid metal-polymer composite structures. This master thesis was devised to investigate the feasibility of FSpJ of metal-composite structures with additional film interlayer. Friction spot joints of aluminum alloy 2024-T3 and carbon-fiberreinforced polyphenylene sulfide laminate composite with additional PPS film interlayer were successfully produced. The highest peak temperature achieved during the joining process was 417°C. DSC analysis demonstrated that the degree of crystallinity decreased for the composite (from 22% to 12%) and increased for the PPS film (from 7% to 27%) after joining. TGA analysis indicated that no extensive thermo-mechanical degradation induced by the joining process occurred. The main bonding mechanisms of FSp joint were identified as macro- and micro-mechanical interlocking, as well as adhesion forces. The process-related microstructural effects were evaluated and correlated to the local mechanical performance of the joining parts through micro and nanohardness. Further, mechanical grinding, sandblasting and plasma activation surface pre-treatments were performed on the composite part to enhance the adhesion between the joining parts. The generated surface features due to the surface pre-treatments were correlated to the mechanical performance of the joints. Sandblasted specimens showed the best mechanical performance among the surface pre-treatments used in this work. The lap shear strength of joints with interlayer (2703 ± 114 N up to 3069 ± 166 N) was up to 55% higher than the corresponding joints without film. The fatigue life of the joints with interlayer was 4 times longer in comparison with those without interlayer; superior fatigue strength was also observed. The durability of the joints was evaluated through hydrothermal accelerated aging; the maximum reduction in initial strength was 12.4% for 28 days of aging. Finally, the failure mechanisms of the joints were discussed, demonstrating a mixture of adhesivecohesive failure mode.Item type:Item, Metamorfoses na tecnocracia da água : um estudo sobre o campo burocrático ambiental(Universidade Federal de São Carlos, 2015-11-30) ;Andrade, Clarissa Perci de ;Martins, Rodrigo Constante ;https://lattes.cnpq.br/6617183095074852https://lattes.cnpq.br/6417789132285148Item type:Item, Derivação de células tronco pluripotentes induzidas a partir de pacientes com doenças mitocondriais como modelo de estudo da herança mitocondrial(Universidade Federal de São Carlos, 2015-11-30) ;Macabelli, Carolina Habermann ;Chiaratti, Marcos Roberto ;https://lattes.cnpq.br/0392078007500289https://lattes.cnpq.br/6577717546370427Mitochondrial dysfunctions caused by mutations in the mitochondrial DNA (mtDNA) represent an important group of human pathologies. However, it is not possible to predict with accuracy the risk of a woman with mutant mtDNA to transmit her pathology to her descendants. This is mainly due to out limited understanding of the molecular basis of mitochondrial inheritance. Since development of a technology that enabled derivation of induced pluripotent stem cells (iPSCs) from in vitro culture of somatic cells, iPSCs have become an interesting model to study mitochondrial inheritance. Derivation of iPSCs from patients with pathogenic mtDNA mutations has revealed that the mutant load decreases through in vitro culture of iPSCs, suggesting the existence of a specific mechanism that eliminates mutant mtDNA in the germ line. Thus, the aim of this work was to use iPSCs derived from patients with mitochondrial disorders to investigate the existence of a mechanism that eliminates mtDNA molecules with pathogenic mutations. In this way, we used heteroplasmic fibroblasts harboring a point mutation A3243G in mtDNA causing mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS); heteroplasmic fibroblasts harboring a deletion in mtDNA causing Kearn-Sayre Syndrome (KSS) and homoplasmic fibroblasts containing only wild-type mtDNA (Control). The KSS lineage derivation resulted in iPSCs with low levels of mutant mtDNA (<0,1%), and the elimination of mutant molecules during the culture. The MELAS derivation resulted in iPSCs with high levels of mutant mtDNA (> 98%), and indication of mutant molecules elimination as well. However, unexpectedly, there was no reduction of mtDNA content in iPSCs compared to fibroblasts in all lineages. On contrary, mtDNA copy number increased in MELAS and KSS iPSCs, perhaps due to the high levels of mutations in the cells. No effect of Rapamycin (mitophagy inductor) treatment was detected on the yield of colony formation in MELAS iPSCs. Additionally, Rapamycin did not affect the mutation levels in MELAS iPSCS compared to untreated iPSCs. Finally, gene expression analysis of MELAS iPSCs provided evidences of an autophagic mechanism directed towards the mitochondrion.Item type:Item, Desenvolvimento de vitrocerâmicas com estrutura NASICON condutoras por íon sódio da família NaGe2(PO4)3(Universidade Federal de São Carlos, 2015-11-30) ;Mosquera, Jairo Felipe Ortiz ;Rodrigues, Ana Candida Martins ;https://lattes.cnpq.br/4499231813051400https://lattes.cnpq.br/6700527765785171Sodium batteries have a promising future owing to the low cost and abundance of sodium in nature. This growing interest has led to the quest for materials to optimize and improve the operation of these devices. Among the components of batteries, electrolyte plays a fundamental role in terms of current density and battery life. In this context, materials with NASICON structures are promising candidates for solid electrolytes because their crystalline structure with open channels promotes high ionic conductivity. Synthesizing NASICON materials by the glass-ceramic route offers several advantages such as easy manufacturing into desired shapes or sizes, low porosity and good microstructural control. Considering the abovementioned factors, the objective of this work was to synthesize and characterize glass-ceramics of the Na1+xAlxGe2-x(PO4)3 and Na1+yGe2SiyP3-yO12 systems for application as solid electrolytes in sodium-ion batteries. The results indicated that the addition of aluminum and silicon improved the glass-forming ability of NAGP and NGSP precursor glasses. Moreover, a thermal analysis revealed the tendency for NAGP precursor glasses to nucleate homogeneously. All the glass-ceramics heat-treated at the crystallization temperature of the precursor glasses (Tx), presented a NASICON structure. The electrical characterization of the glass-ceramics indicated that increasing the aluminum and silicon content enhanced the material’s ionic conductivity because it led to an increase in charge carrier density. To analyze the effect of heat treatment on the microstructure and ionic conductivity, the most conductive compositions of each system (x = 0.8 and y = 0.8) were also crystallized in heat treatments at 800 and 900°C to improve the ionic conductivity.Item type:Item, Política de segurança pública : ciência e gestão na prevenção à criminalidade em Uberlândia-MG(Universidade Federal de São Carlos, 2015-11-30) ;Bonesso, Márcio ;Sinhoretto, Jacqueline ;https://lattes.cnpq.br/7743699562476490https://lattes.cnpq.br/1766342380960663As the main objective of the research, sense connections between social theories and methods of management of public security policies were created, having as study of locus the state policies of crime prevention in the city of Uberlândia in Minas Gerais. The implementation of these new policies in the provincial town had a different reality from where they were planned, the capital city of Belo Horizonte. In this context, as the specific objective of the research, the relationship between the history of city social control with the impact of these state security policies were studied. As an analytical deployment, this research has a theoretical review questioning bonds of social theories and international, national and state interventional programs in the dynamic city of Uberlandia. Regarding the articulation between the axes of qualified repression and social protection, the municipal field of study propiciated the descripition of the macro-implementation of public security policies and micro-social experiences of prevention policies against crime in the suburbs classified as risk areas. Through a comparative analysis the research used different methodological resources to get the desired results: crime statistics, documents of the CPI Drug Trafficking, regulatory manuals on public safety programs and crime prevention, minutes of network meetings, theses, dissertations and scientific articles, land registry cerificates; ethnographic observations on: the utilities and anti utilities markets in the use and trafficking of illegal drugs on the promotion of community networks, art networks, sports networks and workshops of crime prevention programs; and finally, interviews were conducted with residents and supra-local professionals from various locations. The results showed that in Uberlândia there were in some poor neighborhoods a primacy of the axis of qualified repression on the axis of social protection, with the expansion of specialized policing without including compatible employees connected to prevention programs. However, it is noteworthy that the social actions of these officials, although certain structural problems in many micro-social contexts also favored the extension of public services for the population of poor localities. Thus, Uberlandia has become a multifaceted research locus with experiences that moved between conservative and innovative actions, triggered by various individuals and social institutions with multiple motivations.Item type:Item, Descrição, classificação e processamento automático das construções com o verbo dar em Português Brasileiro(Universidade Federal de São Carlos, 2015-11-30) ;Rassi, Amanda Pontes ;Baptista, Jorge ; ;Vale, Oto Araújohttps://lattes.cnpq.br/2277403284693571This PhD thesis starts from the observation of constructions with the verb dar in Brazilian Portuguese and it proposes an analysis and classification of these constructions. The analysis of all constructions found in corpus is systematic and consistent, based on Transformational Grammar (HARRIS, 1964) and on Lexicon-Grammar approach (GROSS, 1975; GROSS, 1981). Both theories adopt formal and experimental criteria to make reproducible the identification of base sentences and the classification of constructions with the verb dar. The classification was based on structural and syntactic properties, leading to four classes or categories: (i) full verb or distributional verb, from which 8 verbal senses could be identified; (ii) causative operator verb, whose constructions could be subclassified in 4 groups, depending on the semantic type of the predicative noun; (iii) the verb as a fixed element, in idioms or in proverbs; and (iv) support verb, which is selected by a predicative noun. The first part of this thesis analyzes the constructions with the verb dar as a full verb, as a causative operator verb and as a fixed verb. The second part of this thesis debribes the support verb constructions (SVC), which are formed by the support verb dar (Vsup) and the predicative noun (Npred). This description is extensive, considering all the occurrences in the corpus adopted and identifying the main formal, distributional and transformational SVC properties. These properties were described and formalized in a Lexicon-Grammar table, which is a binary matrix: each line corresponds to a lexical entry (Npred) and each column corresponds to a syntactic property of the construction. In the intersection between each line and each column, we sign “+” or “-”, respectively, if the property is verified or not. The third part of the thesis presents an automatic syntactic analysis of SVC, by using an approach based in dependency rules between its constituents. The rules are automatically generated from the L-G matrix data and, then, those rules are used by the parser in order to extract the dependency between the Npred and the Vsup. Thus, this work aims to advance the state of the art of the general verbal classification in Portuguese and Automatic Processing of Natural Languages, to contribute to the development of computational-lexical resources (the Lexicon-Grammar of nominal constructions) and with automatic parsing.