358 resultados para Homeostase Teses
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)
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The substitution of diesel by biodiesel meets the current scenario to increase the consumption of alternative energy sources promoting sustainable development of a country. However, the production of biodiesel concurrently generates the formation of glycerine in the process is a by-product. The main application of glycerine is in the food industry, cosmetics, soaps, pharmaceuticals, among others, but these segments are not capable of absorbing the generated volume of glycerine, whereas the total volume of the biodiesel produced about 10% correspond to glycerine. Glycerine obtained from the transesterification reaction (necessary for production of biodiesel) triglycerides and alcohol contains certain impurities such as water, salts, esters, alcohol, and residual oil, which decrease the value. Thus, the purification process or the direct use of glycerine become essential to make it competitive biodiesel production process. This work aims to evaluate the different processes of purification and the use of glycerine obtained as by-product in the production of biodiesel. The research was theoretical, based on technical articles and theses published on this subject, and from these databases was established a summary of the most important processes
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Alteraes de volemia podem ser causadas por diferentes situaes fisiolgicas como vmito, diarreia, aumento da ingesto de sdio, ou pelo uso de diurticos. A depleo de sdio produzida pela injeo subcutnea (s.c.) do diurtico furosemida acompanhada de uma dieta deficiente em sdio por 24 horas um modelo amplamente utilizado no nosso laboratrio para o estudo do apetite ao sdio. A depleo de sdio com o diurtico furosemida promove um aumento da excreo de sdio e gua, levando a alteraes no balano hidroeletroltico corporal dos, ativando assim respostas comportamentais, hormonais e autonmicas para corrigir tais mudanas e restaurar a homeostase. Estudo do nosso laboratrio demonstrou que apesar de apresentarem reduo de volume plasmtico, no se observa alteraes significativas da presso arterial em ratos com 24 h de depleo de sdio pelo tratamento com o diurtico furosemida combinado com uma dieta deficiente de sdio. Desta forma, no presente estudo investigamos o papel do sistema renina-angiotensina pela injeo perifrica de losartan (antagonista de receptores AT1 de angiotensina) e do sistema vasopressinrgico pela injeo perifrica de composto de Manning (antagonista de receptores V1 de vasopressina) na manuteno da presso arterial de ratos depletados de sdio. Foram utilizados ratos Holtzman (280-300 g, n=73) com cateter inserido na artria femoral para registro da presso arterial pulstil (PAP) e veia femoral para injeo intravenosa (i.v.) de losartan ou composto de Manning. A presso arterial mdia (PAM) e frequncia cardaca (FC) foram calculadas a partir do registro da PAP. A depleo de sdio foi induzida pelo tratamento com o diurtico furosemida injetado subcutaneamente (s.c.) combinado com uma dieta deficiente em sdio por 24 h e livre acesso a gua. Os parmetros cardiovasculares foram medidos em ratos depletados de sdio (tratados...
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A Geografia brasileira ainda carece de sua histria. Nos anos mais recentes, numerosos artigos tm aparecido, tentando recuperar essa falha, mas nota-se, ainda, a falta de um documento mais abrangente, que recupere os momentos fundamentais, os acertos e os erros, os avanos e as crises no progresso do conhecimento geogrfico desenvolvido entre ns. E a lacuna se faz sentir, tambm, em termos de informaes precisas sobre pesquisas, eventos, trabalhos publicados e teses defendidas, sem as quais no se pode reconstruir, de forma segura, a trajetria da Geografia brasileira. (DINIZ et al., 1987, p. 3)
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The aim of this study was to propose a reading of theoretical and methodological geography of Brazilian agriculture in Post-Graduate Studies in Geography (PPGE's) from the Southeast, from the 1970s, trying to present a discussion of the analysis categories (space, territory, landscape, region and place) that has been unleashed over the meetings of Agrarian Geography (ENGA's) and in three meetings of the Research Groups of Agrarian Geography (2005, 2006, 2007). So, we started with the hypothesis that the relativization of scientific concepts may impair development of spatial concepts only. To accomplish our objective we carried out a survey of dissertations and theses supported in the period 1970 to 2009, in Post-Graduate in Geography and UFU UFMG (Minas Gerais), UFRJ, UFF and UERJ (Rio de Janeiro) and USP, UNESP / Rio Claro, UNESP / Presidente Prudente (Sao Paulo). The evaluation dealt with the quantitative and drew a profile of Agrarian Geography. Qualitatively, further analysis, crossing information, contextualizing the themes and especially evaluating the theoretical set referenced in the works, an indication of the possible paths followed by this branch of the Brazilian Geography for which it is observed that the references to the categories space and, more specifically the organization of space, was prioritized in the 1980s and the territory as a reference work after 1990.
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This work aims to identify the rootmetaphor of John Deweys philosophical and educational discourse, by means of rhetorical analyses parameters. This methodology is founded in Aristotle and in the works of Cham Perelman and other contemporary authors involved in the revision of Aristotelian philosophy. The article examines the essays The philosophical work of Herbert Spencer and The influence of darwinism on philosophy, published by John Dewey respectively in 1904 e 1909. They were written in the early years of Dewey in Columbia University, which intellectual environment was not dominated by Pragmatism, and for this reason they can be considered seminal in the structuring of the authors arguments. The analysis reveals that Dewey is favorable to Darwinian evolutionism thesis and opposite to Spencers one. This positioning suggests that Deweys discourse is bound to the metaphor undetermined route because it situates evolution as a process devoid of previously listed purposes at a pre-determined plan, subject only to the relations that are established, so unpredictable, between organisms and the environmental conditions that surround. Analyzing Deweys ideas about education, the article concludes that undetermined route is the rootmetaphor of Deweys discourse, hypothesis that can contribute to discuss Dewey in the context of contemporary philosophy.
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This article consists on an analysis of dissertations and thesis on Participatory Budget (PB) in post-graduation courses in Brazil (from the CAPES data bank), from 2000 to 2009. It also makes the evolution of works explicit, the institutions where they were carried out, and the area in which they were produced. Results show that the Participatory Budget has not been often evaluated, understood and explained in terms of its finance and budget technical dimension, in spite of there are two decades studies have been carried out regarding this method on budget management in Brazil. Finally, the importance of understanding aspects on PB must be taken into consideration when carrying out new studies.
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Neste artigo, apresentamos os resultados de um estudo que investigou o que as pesquisas dos Programas de Ps-Graduao em Educao do Estado de So Paulo produzidas entre 1980 e 2005, com foco nas prticas de professores alfabetizadores, dizem a respeito dos procedimentos, prticas e saberes que caracterizam a atuao desses docentes. Primeiramente, fazemos uma breve contextualizao da alfabetizao. Em seguida, destacamos a anlise do corpus (8 teses e 32 dissertaes) nos focos temticos: procedimentos de alfabetizao, prticas docentes e saberes docentes. Os dados apresentados neste artigo permitem apontar permanncias e indcios de alteraes nas prticas dos alfabetizadores e, consequentemente, nas pesquisas sobre essas prticas.
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The aim of this paper is to point the main research tendencies in teaching and learning English as a foreign language in the main postgraduate courses in this area, in Brazil, in the period 2005-2010. The adopted methodology for the data collection included the inventory of theses and dissertations, which are included in the sites of the universities with research lines in Applied Linguistics and were produced in the mentioned period. The most productive categories were the ones related to teacher formation, translation, language and technology and studies about teachers and students beliefs.
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This paper analyses the ideas and the work of Ansio Teixeira in the first years of the 1930s, focusing his conceptions concerning the value of Psychoanalysis for Educational Reform in Brazil. Whereas the ideas and practices Teixeira should be understood in the historical context in which they were developed, the work presents the history of the introduction of the psychoanalytic knowledge in the Brazilian Renovator Educational Movement, highlighting the relevance of hygienism in the dissemination of Freud's theses in education. The findings indicate that Teixeira interacted with the concepts of Psychoanalysis through the hygienist movement and the ideas of Arthur Ramos, considering the individual as being linked to the social environment.
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Ps-graduao em Psicologia do Desenvolvimento e Aprendizagem - FC
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Ps-graduao em Agronomia (Horticultura) - FCA
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Ps-graduao em Cincia e Tecnologia Animal - FEIS
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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)
