Made available in DSpace on 2016-04-29T13:30:55Z (GMT). No. of bitstreams: 1 Maria Adelina Franca.pdf: 1520313 bytes, checksum: 7725a7f828bca8b937d17a2f2084163a (MD5) Previous issue date: 2011-05-20 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The work herein presented comprises a study on the social representations of violence and the types of violence produced by different social sectors in the district of Itaquera in the city of São Paulo. The study was based on the Theory of Social Representations by Serge Moscovici. The concept of Human Security by Amatya Sen was used as an alternative to face the phenomenon of violence. Focal groups were used to provide the data. The main objective of the study was to identify possible differences in the social representations of violence and types of violence emerging from different social segments in the geographical area of the study and to investigate about possible interelations with the environment, social and historical context, as well as intersubjective aspects / A pesquisa ora apresentada examina as representações sociais de violência e tipos de violência vivenciados por diferentes segmentos sociais no distrito de Itaquera, no município de São Paulo. A metodologia científica foi baseada nos Grupos Focais, e o suporte teórico buscado na Teoria das Representações Sociais, segundo Serge Moscovici e ainda na conceituação de Segurança Humana, de acordo com Amartya Sen. O estudo objetivou verificar as possíveis diferenças existentes entre as representações sociais de violência e tipos de violência nos diferentes segmentos sociais da região geográfica do estudo e suas relações com o ambiente, contexto sócio-histórico e aspectos intersubjetivos

La hyalinose segmentaire et focale (HSF) est une maladie rénale sévère dont la physiopathologie est complexe. La récidive de la maladie après transplantation rénale et l’obtention de sa rémission après un traitement par immunoadsorption (IA) illustre l’implication d’un facteur circulant dans sa physiopathologie, capable de se fixer à la protéine A. Récemment, suPAR a été rapporté comme agent causal et marqueur de la HSF. Le premier objectif de notre travail a été de vérifier si suPAR se fixe à la protéine A. Le deuxième objectif a été d’identifier le facteur circulant responsable de la récidive de la HSF après transplantation rénale, à partir de l’analyse par spectrométrie de masse des protéines liées à la colonne de protéine A après (IA). Premièrement, nous avons mesuré la concentration de suPAR par un test ELISA parmi les protéines fixées à la colonne de protéine A après IA chez 7 patients atteints de HSF récidivantes et dans le sérum de 13 patients atteints de HSF récidivantes et de 11 contrôles sains. Le sérum des patients a été immunoadsorbé in vitro sur bille de protéine A sépharose. Nous avons quantifié suPAR avant et après la procédure et dans l’éluat des protéines fixées à la protéine A. La concentration de suPAR est plus élevée chez les patients atteints de HSF récidivantes par rapport aux groupes contrôles. La concentration de suPAR est très faible dans les proteines éluées à partir de la colonne de protéine A, indiquant que suPAR ne se lie pas à la protéine A et n’est pas le facteur circulant élué par les colonnes de protéines A. Deuxièmement, nous avons identifié le FC à partir des protéines fixées à la colonne de protéine A par une caractérisation des protéines par spectrométrie de masse chez des patients traités pour récidive de HSF et chez un patient contrôle. Nous avons recherché le FC dans le sérum de patient atteint de HSF, de patient ayant une néphropathie diabétique et chez des contrôles sains. L’effet de la protéine recombinante du FC a été testé in vitro sur une culture de podocytes et in vivo chez la souris. Nous avons identifié une forme sérique de CASK (calcium calmoduline sérine thréonine kinase), à partir des protéines fixées à la colonne de protéine A après IA. CASK est présente uniquement dans le sérum de patients atteints de HSF et non dans les groupes contrôles. In vitro, la protéine recombinante de CASK (CASKr) induit une redistribution de l’actine du cytosquelette des podocytes en culture par une interaction avec CD98. CASKr altére la perméabilité des podocytes à l’abumine et induit in vivo une protéinurie chez la souris associé à un effacement des pédicelles.En conclusion, suPAR ne se fixe pas à la protéine A ni in vivo ni in vitro. Une forme sérique de CASK est impliqué dans la récidive de la HSF avec comme cible potentiel CD98 sur le podocyte. / Focal and segmental glomerulosclerosis (FSGS) is a serious disease, the pathogenesis of which is unknown. Its recurrence after transplantation (Tx) and its partial remission after treatment with immunoadsorption (IA) on a protein A column indicate the existence of a circulating factor (CF) responsible for the disease that is able to bind to a protein A column. Recently, the soluble receptor of urokinase (suPAR) was described as the factor responsible for FSGS. The first aim of my work was to test the capacity of suPAR to bind to protein A and to be eliminated by IA. The second aim was to identify the CF responsible of the recurrence of the disease after renal transplantation from the analysis of proteins eluted from protein-A columns from patients with rFSGS who had undergone therapeutic (IA). First, we measured suPAR in eluates of protein A columns from 7 patients with recurrent FSGS after Tx (rFSGS) treated with IA, and in the serum of 13 patients with rFSGS and 11 healthy donors (HD). Additionally, the plasma of these patients was immunoadsorbed in vitro on a protein A Sepharose column and we quantified suPAR in the eluates and in pre- and post-column samples. The concentration of suPAR was higher in the plasma of patients with rFSGS than in the plasma of HD patients. However, the concentration of suPAR was similar before and after IA on protein A for the rFSGS and HD samples. The suPAR concentration was very low in the eluates from protein A columns incubated with plasma from HD or rFSGS patients. However, 85% of rFSGS patients showed a decrease in immunoglobulin G and proteinuria. Secondly, we analyzed proteins eluted from protein-A columns from patients with rFSGS who had undergone therapeutic immunoadsorption. Compared to control a differential band was identified by mass spectrometry. The expression of this protein was tested by immunochemical methods in sera from healthy controls, from patients with proteinuria caused by diabetic nephropathy, and from rFSGS patients. The effect of the recombinant protein was evaluated in vitro (podocytes) and in vivo experiments (mice). A soluble form of calcium/calmodulin-dependent serine/threonine kinase (CASK) eluted from protein-A columns was identified by mass spectrometry. CASK was immunoprecipitated only in the sera from patients with rFSGS. Recombinant CASK induced reorganization of the actin cytoskeleton of cultured podocytes through an interaction with CD98 at the cell surface. In vitro, CASK increased the permeability of podocyte monolayers, and induced proteinuria and foot-process effacement in miceIn conclusion, suPAR does not significantly bind to protein A in vitro or in vivo. Soluble CASK acts as a permeability factor in patients with rFSGS bindinding CD98 on podocytes.

Os cursos de licenciatura são uma primeira oportunidade para que os saberes da profissionalidade docente sejam trabalhados. É possível que o estudo dos saberes a respeito da educação ambiental e do meio ambiente contribua para reconhecer a existência destes saberes entre os licenciandos e prepara-los para compreender a crise ambiental e suas implicações para a forma de trabalho do professor com uma atuação docente efetiva nas questões socioambientais. Saberes são entendidos enquanto como os conhecimentos que fundamentam o ato de ensinar no ambiente escolar, não sendo apenas os conhecimentos relativos a pedagogia, mas também uma série de conhecimentos, habilidade e atitudes docentes. Assim, a importância de relacionar a formação de professores à educação ambiental reside na atual crise ambiental pela qual a humanidade passa, resultado de uma visão cartesiana de mundo. Neste interim a educação ambiental pode ser uma oportunidade para a construção de um posicionamento crítico frente ao ambiente, tal como indicam os autores da área e os documentos sobre educação ambiental. A presente pesquisa teve como objetivo caracterizar e entender os saberes docentes a respeito da educação ambiental e meio ambiente a partir das ideias expressas pelos licenciandos de dois cursos de Licenciatura da ESALQ-USP. Para realizar a investigação qualitativa que busca compreender o objeto dentro de seu contexto histórico e social, foram realizados dois grupos focais, em 2014 e em 2015 com licenciandos voluntários, o primeiro com quatro participantes e o segundo com três, com a realização de oito reuniões cada a respeito de meios ambiente, educação ambiental para analisar os saberes docentes expressos. Como forma de análise, as ideias chave apresentadas pelos participantes em cada reunião foram organizadas em quadros síntese. Estes orientaram a análise das falas dos participantes de forma contextualizada, considerando a perspectiva do outro. Existe classificação dos saberes docentes por autores da área, de modo que estes balizaram a construção das metodologias utilizadas em cada reunião (por exemplo, a fonte social destes saberes). Como resultado, o grupo focal foi avaliado pelos participantes como um espaço para articular e organizar suas ideias. Os participantes do primeiro grupo não demonstraram articulação entre os saberes docentes, nem relacionam o curso de licenciatura aos saberes da prática profissional, não tendo assim questionamentos ou construções de saberes da prática, a visão de educação ambiental expressa por esses se pautou principalmente em questões comportamentais e aos temas ambientais presentes na escola, embora valorizassem a importância de uma educação crítica. Os participantes do segundo grupo apresentaram suas ideias mais articuladas a respeito da educação ambiental e profissionalidade docente, valorizando a educação ambiental crítica e a interdisciplinaridade, mas não apresentando clareza a respeito de como estas se desenvolveriam na escola. Ambos os grupos expressam que o ser humano é parte da natureza porque interage com ela, estes também explicitaram a visão de natureza enquanto o não urbano. Os participantes expressam que a docência se aprende no exercício da pratica cotidiana sendo a partir desta que o professor aprende a realizar a educação ambiental. / The Teacher Training Undergraduate Courses are the first opportunity for the knowledge of the teaching profession to be worked. It is possible that the study of the environmental education knowledge and the environment contribute to acknowledge the existence of this knowledge among undergraduates and prepare them to understand the environmental crisis and its implications for the way teachers work with an effective teaching practice in environmental issues. Knowledge here is understood as the knowledge underlying the act of teaching in the school environment, it is not only the knowledge of pedagogy, but also all the knowledge, skills and attitudes of the teachers. Thus, the importance of linking the training of teachers in environmental education lies in the current environmental crisis that humanity is going through, that results from a cartesian view of the world. In this scenario, environmental education can be an opportunity to build a critical position relative to the environment, as indicated by the authors of the area and the documents on environmental education. This study aimed to characterize and understand the teachers knowledge about the environmental education and the environment using the ideas expressed by pre-service teachers from two teacher training undergraduate courses at ESALQ-USP. To conduct the qualitative research that seeks the understanding of the object within its historical and social context, two focus groups were conducted in 2014 and in 2015 with pre-service teachers volunteers, the first with four participants and the second with three, with eight meetings being performed with each group about environmental media and environmental education to analyze the teaching knowledge expressed. To do so, the key ideas presented by participants at each meeting were organized in summary tables. These summary tables guided the analysis of the speeches of the participants in a contextualized way, considering the perspective of the others. There is a classification of teaching knowledge made by authors of the field that led the construction of the methodologies used in each meeting (for example, the social source of this knowledge). As a result, the focus group was evaluated by the participants as a space to articulate and organize their ideas. Participants in the first group showed no articulation with different kinds of teaching knowledge neither related the teacher training undergraduate course to the knowledge of professional practice, thus not questioning or setting up pratical knowledge. The environmental education vision expressed by them was based mainly on behavioral and environmental issues present in the school, although they valued the importance of a critical education. Participants in the second group presented their most articulated ideas about the environmental education and the teaching profession, valuing the critical environmental education and interdisciplinarity, but showing no clarity as to how these would develop in school. Both groups expressed that the human being is part of nature because it interacts with it, they also made explicit the vision of nature as the non-urban. Participants expressed that teaching is learned in the course of daily practice, being from it that the teacher learns to carry out environmental education.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-10-05T16:14:30Z No. of bitstreams: 1 2011 - Romario Cardoso Costa.pdf: 1978851 bytes, checksum: f80696195f1b8d31796941b611e95403 (MD5) / Made available in DSpace on 2016-10-05T16:14:30Z (GMT). No. of bitstreams: 1 2011 - Romario Cardoso Costa.pdf: 1978851 bytes, checksum: f80696195f1b8d31796941b611e95403 (MD5) Previous issue date: 2011-08-11 / The school games, which are historically manifested in Brazil in various forms, is a sociocultural phenomenon in different contexts. Thus, especially in the teaching of federal technical schools, which adopt the system of classes in integral regime, the school competitions play a key role in relations among students. These games has configured over time as a very important activity for the school to attend its community by allowing individuals participating in the development of issues relevant to life. In considering the existence of confrontation, which can make these games, held in the interclass model, the scene of conflicts, misunderstanding and friction, in turn deteriorating relations between the students is that we set out to investigate "as" the model of current pedagogical Internal Games of Florestal Agrarian Development Center - JICEDAF - interfere in relations between the students in the school environment. The method used to develop and operationalize the research was the Focus Group, a qualitative research technique, which aims to obtain data from group discussions with representatives of the study subjects, and representative distinctly distributed among participants and nonparticipants of JICEDAF. Such procedures shall seek an interpretation and analysis of the speeches of four groups debaters from his own point of view, following the discussion of insights. It is a widely used technique in social research, being increasingly employed in research in education. The triangulation of findings with the input of bibliographic material and everyday life in the institution, guided through the nine insights script discussions, allowed us through qualitative analysis, understanding how they are formed and different perceptions, opinions and attitudes about JICEDAF. The results are presented through the content analysis, described as a thematic analysis and analysis of speech elements at times, with the excerpts of the speeches of focus group participants included the text and illustrate in particular categories. Among the participants of the four focus groups, we found that the majority believes that the relationship between students in school improvement. The factors that hinder improvement of these relations between learners are helped by the camaraderie, the creation of new friendships, strengthening the existing friendships; in fostering a harmonious school environment, the change of coexistence, in the closest approach, the interaction facilitated; aid in their studies; in reducing conflicts, the discouragement / blockade the formation of small rival groups / Os jogos escolares, que historicamente no Brasil se manifestam de v?rias formas, s?o um fen?meno s?cio-cultural em contextos diversos. Desta forma, em especial no ensino das escolas t?cnicas federais, que adotam o sistema de aulas em regime integral, as competi??es escolares t?m um papel fundamental nas rela??es entre os discentes. Estes jogos escolares t?m se configurado ao longo do tempo como uma atividade de suma import?ncia para o atendimento ? comunidade escolar, por permitirem o desenvolvimento nos indiv?duos participantes de aspectos relevantes ? vida. Ao considerar a exist?ncia de embate, que podem tornar esses jogos, realizados no modelo interclasses, palco de disc?rdias, desentendimento e atritos, deteriorando por sua vez as rela??es entre os discentes ? que nos propusemos a investigar ?como? o modelo pedag?gico atual dos Jogos Internos da Central de Ensino e Desenvolvimento Agr?rio de Florestal - JICEDAF - influencia nas rela??es entre os discentes no ambiente escolar. O m?todo utilizado para desenvolver e operacionalizar a pesquisa foi o Grupo Focal, uma t?cnica de pesquisa qualitativa, que visa a obten??o de dados a partir de debates em grupo com representantes dos sujeitos do estudo, distribu?dos distintamente e com representatividade entre os participantes e n?o participantes dos JICEDAF. Tais procedimentos visam a interpreta??o e an?lise das falas de quatro grupos debatedores, a partir de seu pr?prio ponto de vista, ap?s o debate dos insights. Trata-se de uma t?cnica muito utilizada no ?mbito da pesquisa social, sendo cada vez mais empregada nas pesquisas em educa??o. A triangula??o dos achados com o aporte do material bibliogr?fico e o nosso cotidiano na institui??o, guiados atrav?s dos nove insights do roteiro de debates, nos permitiu atrav?s da an?lise qualitativa, o entendimento de como se formam e se diferem as percep??es, opini?es e atitudes acerca dos JICEDAF. Os resultados s?o apresentados atrav?s da an?lise de conte?do, com frequ?ncia descrita como an?lise tem?tica e elementos da an?lise do discurso, com as cita??es de trechos das falas dos participantes dos grupos focais integradas ao texto e que ilustram categorias em particular. Entre os participantes dos quatro grupos focais, constatamos que a maioria entende que a rela??o entre os alunos no ambiente escolar melhora. Os fatores que interferem na melhoria dessas rela??es entre os discentes, est?o amparados no coleguismo; na cria??o de novas amizades; no refor?o ?s amizades j? existentes; no favorecimento a um ambiente escolar harmonioso; na mudan?a de conviv?ncia; na maior aproxima??o; na intera??o facilitada; no aux?lio aos estudos; na diminui??o dos conflitos existentes e no desest?mulo/bloqueio ? forma??o de pequenos grupos rivais

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-08-18T18:09:52Z No. of bitstreams: 1 2010 - Hiram Feij? Bay?o Junior.pdf: 2995539 bytes, checksum: c30780db47d43f18157697f751fc9127 (MD5) / Made available in DSpace on 2017-08-18T18:09:52Z (GMT). No. of bitstreams: 1 2010 - Hiram Feij? Bay?o Junior.pdf: 2995539 bytes, checksum: c30780db47d43f18157697f751fc9127 (MD5) Previous issue date: 2010-06-07 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / Disturbed Ecosystems present floristic composition changed, with a predominance of herbaceous vegetation, the soils are depleted, shallow, stony, with low infiltration and erosion presenting with different levels of Geodynamics. The individuals forest that colonized and settled in these environments, were considered rustic species. They were raised and their properties were evaluated in facilitating ecosystem evolved over 28 years, where the management was the restriction of pasture. The work was carried out in sections exposed to northern, local environmentally unfavorable of the watershed of Cacaria?s river, located in the Cacaria district, Pira? (S 22 ? 43'949''W and 43 ? 50'807''), located in the southern state of Rio de Janeiro. We found 14 rustic species in disturbed ecosystems, where only 4 survived to more advanced levels of the ecosystems (Tabernaemontana laeta, Sparattosperma leucanthum, Peltophorum dubium and Guarea guidonia), resulting in the same process of succession with 584 individuals and 43 species of 28 families in an area of 1.8 hectares, may constitute natural models of ecological restoration to be used in the Atlantic Forest. / Ecossistemas perturbados apresentam composi??o flor?stica alterada, com predom?nio de vegeta??o de porte herb?ceo, solos exauridos, rasos, pedregosos, com baixa infiltra??o e geodinamismos dos processos erosivos distintos. Os indiv?duos florestais que colonizam estes ambientes foram considerados esp?cies r?sticas. Eles foram levantados por censo em ?reas perturbadas e avaliadas os n?veis de coloniza??o espont?nea sob influencia das suas copas em ecossistema similar com 28 anos de restri??o ? pecu?ria. O estudo foi desenvolvido na vertente norte, local ambientalmente mais desfavor?vel por estar submetido a maiores perdas evapotranspirom?tricas da bacia hidrogr?fica do rio Cacaria, munic?pio de Pira? (S 22?43?949?? e W 43?50?807??), Rio de Janeiro. Foram encontrados 14 esp?cies r?sticas em ?reas perturbadas, onde apenas 4 subsistiram a n?veis mais evolu?dos do ecossistema (Tabernaemontana laeta, Sparattosperma leucanthum, Peltophorum dubium e Guarea guidonia), gerando sob as mesmas um processo de sucess?o com 584 indiv?duos e 43 esp?cies florestais, de 28 fam?lias em uma ?rea de 1,8 hectares. Estas informa??es podem ser essenciais ao desenvolvimento de modelos de restaura??o ecol?gica na Mata Atl?ntica.

The purpose of this study is to assess why the race and gender of defendants influence judges’ decisions using the focal concern theory. This study will require around 84 participants. Participants will be federal judges who will be recruited via email. In an online survey, participants will be randomly assigned to one of four conditions . Participants will all read a vignette which an individual was convicted for in trafficking of Xanax. The vignette will be manipulated by the name and accompanying a mugshot based on the race (Black/White) and gender (male/female) of the defendant. The expected result is that there will be a significant effect on sentencing time based on race and gender due to perceived offender characteristics (perceived culpability, perceived aggression). The judges’ prejudice (sexism, racism, and feelings of paternalism toward the defendant) will also have a significant effect on sentencing length. With more research about judges’ perceptions and biases, reforms can be implicated to reduce sentencing disparity and to make the legal system more fair.

Research suggests that teacher-child interactions in early childhood classrooms are an essential element to high quality programs and child outcomes. With the increase in state funded pre-kindergarten classrooms across the nation and the growing concentration on academic content for young children, careful attention is needed to children’s social-emotional development. Research suggests that it is a strong social emotional foundation that contributes to children’s successful transition into their elementary school years. Therefore, the purpose of this mixed method study was to pilot the use of focal child data as a professional development tool for pre-kindergarten teachers to examine teacher-child interactions. Studying eight teachers across two pre-kindergarten sites, the development of participant’s knowledge of teacher-child interactions was captured using focal-child classroom observations, face-to-face exchanges, teacher reflections, and researcher field notes. Data analysis involved descriptive statistics from quantitative sources, combined with emerging themes through iterative cycles of coding qualitative data. Situated in a conceptual framework that places individual development in context, this study exemplifies the value of using uniquely tailored focal child data as a professional development tool for pre-kindergarten teachers. Findings from this mixed method study reveal how focal child data provided participating teachers with a new lens for examining teacher-child interactions, which led to a heightened awareness of and intentionality in their interactions with children. Additionally, a collaborative community of practice model for professional development contributed to teacher understanding and transformation over the course of this study. Capturing the direct social ecology of a child’s pre-kindergarten experience aided in understanding the relationship between specific children’s experiences and the context in which those experiences take place. Findings from this study enhance participant understanding of the complex nature of teacher-child interactions.

Presented in this thesis are some basic concepts and applications of seismic hazard analysis and the elements that influence the amplitude and geometric attenuation of earthquake ground motion. This thesis centers on the identification of the styles of failure, focal mechanisms, and the state of regional stress in the study area. Seismic hazard is a complex problem often involving considerable uncertainties. Therefore it is reasonable to consider different seismic hazard analysis approaches in order to as robustly as possible define zones of different levels of hazard. With the aim of characterizing and quantifying hazard in the east African region of Eritrea and its surroundings, a study is included in the thesis presenting hazard maps constructed using two non-parametric probabilistic seismic hazard analysis (PSHA) approaches. Peak ground acceleration (PGA) values for 10% probability of exceedence in 50 years are computed at given grid points for the whole selected area and results from both methods are compared. Other aspects addressed in the thesis include the determination of source parameters of selected earthquakes that occur in the Afar region. The styles of faulting, the mechanisms involved during the rupture process and the states of stress along the major tectonic features are also highlighted. Source parameters for selected events in the region were re-evaluated and improved solutions obtained. An aftershock sequence in the Hengill volcanic area in SW Iceland, following the major event that occurred on June 4, 1998, was used to investigate improved methodologies for moment tensor using a relative approach. The sensitive and spatially dense seismic network in this area reveals large sets of clustered events allowing the power of the new methodology to be demonstrated and providing greater insight into the tectonic implications of the activity in the area.

Routers have to be fast enough to keep pace with increasing traffic data rate because of the increasing need for network bandwidth and processing. The switch fabric component of a router is a combination of hardware and software which moves the incoming packets to the outgoing ports. The access of the input ports to the switch fabric is controlled by a scheduler which affects the overall performance together with the fabric design. In this thesis we investigate two switch fabric and scheduler architectures, the well-known iSlip fabric scheduler and the Byte-Focal switch. We observe that these two architectures have different behaviors under different input traffic load ranges. The novel contribution of this thesis is a combined switch architecture which is composed of these two architectures that are implemented and run in parallel to selectively forward the packets with lower delay to the outputs to achieve an overall lower average delay. The design of the combined switch is carried out on FPGA and simulated. Our results show that the combined architecture has 100% throughput and a lower average delay compared to the Byte-Focal switch and the input-queued switch with iSlip. On the other hand, our combined switch uses more resources in FPGA than individual iSlip and Byte-Focal switch.

<p>This thesis describes three computational optical systems and their underlying coding strategies. These codes are useful in a variety of optical imaging and spectroscopic applications. Two multichannel cameras are described. They both use a lenslet array to generate multiple copies of a scene on the detector. Digital processing combines the measured data into a single image. The visible system uses focal plane coding, and the long wave infrared (LWIR) system uses shift coding. With proper calibration, the multichannel interpolation results recover contrast for targets at frequencies beyond the aliasing limit of the individual subimages. This thesis also describes a LWIR imaging system that simultaneously measures four wavelength channels each with narrow bandwidth. In this system, lenses, aperture masks, and dispersive optics implement a spatially varying spectral code.</p> / Dissertation