118 resultados para Análise de seqüência com séries de oligonucleotídeos
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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This paper deals with hypersegmentation of words that are characterized by the unconventional employment of a graphical boundary (using a white space or hyphen) within the limits of the word, as in "em bora" (“although”, using a white space), and "chama-da" (“called”, using the hyphen). In a study conducted on these data, we identified motivations arising not only from their literate nature but also from the morphosyntactic and prosodic information. We showed that there are linguistic features recurrent in these registers of word boundaries, based on the analysis of texts produced by the students who attended the last four years of elementary school in a public school in São Paulo. In this paper, we advance on this study by selecting data whose characteristics do not match those which were recurrent. We will argue that the unconventional presence of boundary within the written word limits may be interpreted as representing prosodic configurations (of intonation and rhythm nature) which contribute to the construction of the relation of meanings in the text.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Climate variability and therefore the rainfall is often cited today, in times to speak of "global change", "global warming", "anthropogenic disasters," among other terms related to climate issues, which may cause floods and disasters that affect entire regions. In this sense, the seasonal rainfall and its extremes in the basin of Ivaí river, which has a drainage area of approximately 36 000 km2, covering a length of 680 km, located in the State of Paraná between coordinates 22 º 54'S 25 ° 44'S and 55 44'W to 52 º 42'W, were analyzed. Influence of rainfall for the man occupation is undeniably important, not less important is the role that this issue poses to the climate abiotic and biotic environment, because the dynamic relations between the fauna and flora is directly related to the availability of water in system (in this case, rain). The methodological procedures used during the research focused on statistical analysis of rainfall series daily, monthly and yearly, provided by the Superintendence of Water Resources Development and Environmental Protection Agency - SUDERHSA, an agency linked to the government of Parana. The analysis period chosen was from 1975 to 2005, with 38 stations for data collection, distributed evenly across the search area. The standard rainfall in the basin is explained mainly by convective processes in the summer (wet season) and front system causing more homogeneous rainfall over the basin (dry season). What is well marked is the occurrence of maximum rainfall in the years 1983 and 1997 (El Niño) and minimal in the years 1977, 1985 and 1988 (La Niña). Finally, although the study area have undergone a significant change in your landscape for over thirty years, this study indicates no significant interference in rainfall.
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In this paper, we analyze the educational importance of teaching Physics in the early grades of elementary school from a teaching experience with students of 5th grade, using five experiments on electricity and magnetism. The theoretical framework used was the socio-historical psychology, especially Vigotski's studies on concept formation. It can be stated that the teaching of Physics and the use of experimental activities in the early grades cannot be simply associated to the teaching of certain scientific concepts, but should be explored bearing in mind the child's development.
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The objective of this paper is to verify and analyze the existence in Brazil of stylized facts observed in financial time series: volatility clustering, probability distributions with fat tails, the presence of long run memory in absolute return time series, absence of linear return autocorrelation, gain/loss asymmetry, aggregative gaussianity, slow absolute return autocorrelation decay, trading volume/volatility correlation and leverage effect. We analyzed intraday prices for 10 stocks traded at the BM&FBovespa, responsible for 52.1% of the Ibovespa portfolio on Sept. 01, 2009. The data analysis confirms the stylized facts, whose behavior is consistent with what is observed in international markets.
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Pós-graduação em Educação para a Ciência - FC
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Pós-graduação em Educação - FFC
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Educação Escolar - FCLAR
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Pós-graduação em Ciências Cartográficas - FCT
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)