23 resultados para Teoria dos grupos


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Pós-graduação em Educação para a Ciência - FC

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O livro apresenta os resultados mais relevantes das atividades realizadas dentro do Programa de Pesquisa sobre Mudanças Climáticas Globais, patrocinado pela Fapesp e relacionado a estudos de impactos, vulnerabilidades e variabilidades nas mudanças do clima no estado de São Paulo e região sudeste do Brasil. Tais experiências têm sido discutidas e desenvolvidas com grupos de pesquisa de Portugal, que dão ao trabalho um caráter mais abrangente e internacional. O Brasil vem estudando já há algum tempo impactos das mudanças no clima que possam servir como base para estratégias de adaptação e para análises de vulnerabilidade diante das ameaças climáticas. O projeto da Fapesp tem, especificamente, a missão de produzir estudos de detecção e traçar cenários climáticos futuros, com metodologias que possam ser aplicadas em todo o Brasil. Essa metodologia leva em conta uma combinação de dados do clima (observações e projeções derivadas de modelos climáticos) com base em informações ambientais, geográficas, geofísicas e sociais. A ênfase está nos extremos climáticos e nos seus impactos sobre os recursos hídricos, assim como no planejamento com vista a minimizar os desastres naturais de origem meteorológica, que de alguns anos para cá têm se disseminado pelo país

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Based on the assumption that the exchange of knowledge can support a process of self-organized interactions of the involved in the process, we present the results of a study about how happen the dialogue between physics teachers involved in a group of study of Modern and Contemporary Physics. With the support of the propositions of Bakhtin about the potential of the discourse and discursive interactions studies, we identified interesting regularities in how organize discussions among teachers, identifying a scheme that allows us to infer the effectiveness of the enforcement of this form of lead and mediate the discussions in groups of continuous formation of physics teachers to other topics, as well as adding arguments in defense of the groups of discussion as a strategy for continuing formation of teachers.

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Given the objective of the Educational Observatory Program of putting in conjunction the efforts of graduation and basic school in order to improve the quality of the latter, are sought possibilities offered by such an arrangement for teacher education. The assumed action research methodology is designed as a collective rethinking about the social practice in which participants were immersed. It is identified strong correlation among the school/graduation interaction and the nature of the underlying teacher education design. The constitution of research questions accomplished inside the school and the centrality of Small Research Groups in a broad network of interactions were determinants.

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The theory of sexual selection states that individuals more capable of attracting, selecting and competing for partners are more successful on reproduction than the less fit individuals. Competition for sexual partners can be observed in different populations of humpback whales (Megaptera novaeangliae). These large cetaceans migrate seasonally from feeding areas, in high latitudes, to breeding areas, in low latitudes, where they spend the winter. During the breeding season females with and without calves are escorted by transient competitive groups of males. Seeking reproductive success in the same group, various males exhibit aggressive behaviors searching for proximity to the disputed female. Breeding areas are usually located in warm and shallow waters that provide greater security to newborn calves. The Abrolhos Bank, in the Bahia State, is the main breeding area of the species in Brazil. In this study, we used data collected in this region between 2003 and 2012. We tested the hypothesis that there is temporal fluctuation in the abundance of competitive groups and, thus, there is variation in the levels of competition among males during the breeding season. We expected to find higher competition at the beginning of the season since there are a large number of males competing for a small number of females available for mating, because some of them would still be pregnant with calves conceived on the previous year. As the pregnant females give birth to their calves and can again get into heat, the competition among males would be softened, represented by a smaller number of individuals in competitive groups and a larger number of groups sighted. To test this hypothesis we compared the number of individuals per group and number of groups sighted (response variables) between the beginning and the end of the reproductive season (explanatory variable) by using generalized linear models. We used the Living Planet Index (LPI),...