Formation Of The Concept Of Numbers
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. O que (não) é um rpg: polêmica e produção de sentidos em discursos sobre o role playing game / What is (not) a RPG: polemics and sense production in discourses on Role Playing Game
The object of this work is to characterize modes of subjectivity production that go through the speech present in role playing games, known as RPG, constituted mainly in the controversy of the opposition between different voices, focusing the analysis on texts from Dragão Brasil magazine, a national publication specialized in the game. In order to do that,
Publicado em: 2008
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2. O senso numérico da criança: formação e características
Esta pesquisa tem por objetivo investigar a formação do conceito de número na criança. Desenvolve-se em duas perspectivas: a primeira, de contexto teórico, é voltada ao estudo de duas abordagens científicas, com pressupostos distintos; a segunda, de caráter empírico, tem por foco a identificação de diferenças individuais, de habilidades numérica
Publicado em: 2008
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3. Investigações sobre números naturais e processos de ensino e aprendizagem desse tema no início da escolaridade
This research has the objective to investigate the education and learning of natural numbers, searching to identify similarities and differences between the results and indications of research on the construction of numbers concepts for the children. It analyzes the contributions of Piaget, Kamii, Fayol, Lerner and Sadovsky and the implications that these re
Publicado em: 2007
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4. O desafio do desenvolvimento profissional docente: análise da formação continuada de um grupo de professoras das séries iniciais do ensino fundamental, tendo como objeto de discussão o processo de ensino e aprendizagem das frações
This study it has as objective to analyze factors that can intervene with the professional development of teachers of the first series of Elementary School, as resulted of a formation continued with the purpose to argue questions related to the boarding of the fractionary representation of rational numbers and its different meanings. For the collection of da
Publicado em: 2007
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5. O processo de apropriação da escrita na infância: situações interativas na produção textual. / The acquisition of the writing process in childhood: interactive situations in text production.
Based on the assumption that the school is responsible for the wider insertion of the individual in the literate culture - which implies assuming the formation of both competent readers and writers as one of the main objectives of education - and on the fact that children must be regarded, from the very early stages of learning, as effective users of the wri
Publicado em: 2007
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6. N2O reduction and HD formation by nitrogenase from a nifV mutant of Klebsiella pneumoniae.
Dinitrogenase from a nifV mutant of Klebsiella pneumoniae contains an altered form of iron-molybdenum cofactor (FeMoco) that lacks a biologically active homocitric acid molecule. Change in the composition of FeMoco led to substantial variation in the kinetics of nitrogenase action. The KmS of the mutant enzyme for N2 and N2O were 0.244 and 0.175 atm (24,714
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7. Depressed Cellular Formation of Antibody to Shigella Antigens In Vitro by Spleen Cell Cultures from Unresponsive Mice
Specific antibody plaque-forming cells (PFC) to Shigella-soluble antigen did not appear in spleen cell cultures from Shigella-tolerant mice, as occurred with similar cultures prepared from normal mice immunized with Shigella antigen prior to sacrifice. Cultures from tolerant mice also failed to form serologically detectable amounts of agglutinins in vitro. E
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8. Altered growth of a human neuroendocrine carcinoma line after transfection of a major histocompatibility complex class I gene.
The major histocompatibility complex (MHC) class I molecules are known to serve as recognition elements for cytotoxic T cells in mediating the rejection of transplanted tumors. We demonstrate that MHC molecules may have nonimmune functions in modulating tumor cell growth in addition to their classical role in antitumor immunity. A human neuroendocrine carcin
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9. Murine natural killer cells are fungicidal to Cryptococcus neoformans.
Murine natural killer (NK) cells have been shown to bind to and inhibit the growth of Cryptococcus neoformans in vitro and to contribute to clearance of the organism in vivo. However, it is unclear whether NK cells actually kill cryptococci or simply inhibit proliferation of the fungal target. Therefore, the studies presented here were designed to determine
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10. Localization of the meningococcal receptors for human transferrin.
The interaction between gold-labelled human transferrin (Au-HTF) with live meningococci after growth in vivo or in different in vitro conditions was examined by electron microscopy to localize and quantify the numbers of HTF-binding sites on the cell surface. It was clearly demonstrated that HTF binds to the surface of live meningococci (of different serogro
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11. Host defense against cholera toxin is strongly CD4+ T cell dependent.
This study investigates the role of CD4+ T cells in host defense against cholera enterotoxin-induced diarrhea. Antitoxin immunoglobulin A formation and gut protection against cholera toxin (CT) following oral immunizations with CT were evaluated in normal mice and mice that had been depleted of CD4+ T cells by in vivo treatment with specific anti-CD4 monoclo