Field Essays
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. Elites e formação nacional: as gerações de 1830 do Brasil e da Argentina
Despite the attempt of ideologists to formulate the nationalist spirit, according to Benedict Anderson, European nationalities were also created by the bombastic and non-intentional interaction between capitalism, the beginning of the editorial effort, and the linguistic diversity. The New World, like Europe, depended on ideologues to build the nations imagi
Publicado em: 2009
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14. Technical parameters for the white mold control using air- assisted hydraulic sprayer / Parâmetros técnicos para o controle do mofo-branco na cultura do feijão utilizando pulverizador hidráulico de barra com assistência de ar
The white mold, caused by the fungus Sclerotinia sclerotiorum, is one of the most destructive diseases of the bean plant in the world, especially in crops under conditions of mild temperatures and high soil and air humidity. In general, primary infections caused by this fungus start due to the presence of free water and an exogenous energy source, usually se
Publicado em: 2009
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15. ResistÃncia de genÃtipos de Vigna unguiculata (L.) Walp.Ã Aphis craccivora Koch e Crinocerus sanctus Fabricius / Genotypes of Vigna unguiculata (L.) Walp. resistance to Aphis craccivora Koch and Crinocerus sanctus Fabricius
The cowpea black aphid (Aphis craccivora Koch, 1854) is the most important insect pest of cowpea beans (Vigna unguiculata (L.) Walp.) and is cited as a key pest of this crop. One of the easiest way for its control is by the use of plant resistance to this pest being those natural or induced resistance. The objective of this research was evaluate natural resi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2008
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16. Impact of downy mildew on soybean yield in South of Mato Grosso do Sul, 2006/2007 crop season / IMPACTO DO MÍLDIO NA PRODUTIVIDADE DA SOJA NO SUL DE MATO GROSSO DO SUL, SAFRA 2006/2007
Foliar diseases that attacks soybean crop constitutes one of the main limiting crop yields for soybeans. Soybean downy mildew, caused by the oomycota Peronospora manshurica, is one of the diseases of major distribution in all regions of the world where soybean is cultivated. Soybean downy mildew can damage leaves and in some cases pods. This research aimed t
Publicado em: 2008
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17. Ensino aprendizagem do conceito de função: pesquisas realizadas no período de 1970 a 2005 no Brasil
The present study aims at comprehending the students difficulties on the concept of function observed in our teaching experiences of Mathematics, as well as in researches that deal with this theme. A study of state of art was performed since it was considered adequate to accomplish the objective announced. The study included essays and theses of doctorates d
Publicado em: 2008
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18. Aprendizagem de função afim: uma intervenção de ensino com auxílio do software Graphmatica
The objective of this study was to investigate the possibility of the appropriation of the concept of first degree functions to students of 3 rd grader of high school, from an intervention of education subsidized by technological tools. With this objective in mind, the study intends to answer the following question of research: What are the contributions to
Publicado em: 2008
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19. Levantamento de Meloidogyne incognita em lavouras de algodÃo no noroeste do Paranà e seleÃÃo de genÃtipos de algodoeiro com resistÃncia a Meloidogyne incognita raÃa 3 / Survey of Meloidogyne incognita on cotton crops in northwest Paranà and selection of resistant cotton genotypes to Meloidogyne incognita race 3
Among the pathogens that reduce the cotton productivity in Brazil, Meloidogyne incognita is one of the most important by causing yield losses and for being widespread. The most recommended control methods to this species are the use of resistant cultivars and crop rotation systems. In ParanÃ, M. incognita races 3 and 4 have already been reported as cotton p
Publicado em: 2007
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20. THREE ESSAYS ON REGIONAL ECONOMICS
The study on regional economics has two particular characteristics that differentiate it from any other field in economics. Macroeconomic variables and national borders are not the focus of analyses, even though regional planners can measure the regional effects of national policies. In this aspect, areas of study in which microeconomic instruments are the m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2007
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21. Classificação da aderência pneu-pavimento pelo índice combinado IFI - Internacional Friction Index para revestimentos asfálticos. / Adherence tire-asphalt through the classification index IFI - International Friction Index to Asphalt Pavements.
The characterization of the macrotexture and microtexture of asphalt pavements surfaces can be obtained by means of different types of equipment presenting different characteristics. The results of the essays obtained by these different equipment were compared and harmonized by an ample research developed by PIARC (Permanent International Association of Road
Publicado em: 2006
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22. Analysis of a rigid shallow foundation instrumented load test / Análise de prova de carga instrumentada em uma sapata rígida
O objetivo principal deste trabalho é avaliar as metodologias usualmente utilizadas para prever a capacidade de carga e recalques de fundações rasas rígidas. Para isso foi realizada uma prova de carga durante a qual foram monitorados os deslocamentos verticais em diferentes profundidades, correspondentes aos diferentes bulbos de tensão, usando uma instr
Publicado em: 2006
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23. Chemical ecology of insect and Piperaceae species / Ecologia química de insetos e espécies de Piperaceae
The study was presented in six chapters that included several aspects of chemical ecology of insects and Piperaceae species as following: The Chapter 1 describes taxonomical aspects, natural history of the insects and field observation and the organization of hosts Piperaceae according to the observed feeding preferences of the associated insects. It was obs
Publicado em: 2006
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24. Frequência de fungos associados ao colapso do meloeiro e influência da densidade de inóculo e isolados de Menosporascus cannonballus na severidade da doença
This study aimed to verify the frequency of fungi associated to melon (Cucumis melo L.) roots with collapse symptoms and their correlation with physical, chemical and microbiologic characteristics of soils. It also aimed to analyze the influence of inoculum densities and strains of Monosporascus cannonballus on the melon collapse, evaluating suitable methods
Publicado em: 2004