42 resultados para Mines subsidences


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Pós-graduação em Engenharia Civil e Ambiental - FEB

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The mining research is a complex activity, which should preferably involve the combination of direct and indirect techniques of geological research. The increasing demand for base metals in domestic and international markets provide the revaluation of mineral occurrences, which can be converted into deposits and mines. This paper presents the results of the application of geophysical methods of electric resistivity and induced polarization in main foliation parallel to the arrangement of the area, in a deposit of oxides and hydroxides in massive and disseminated ores, docked in gneisses and quartzites, located in the municipality of Itapira, in the North of the State of São Paulo in Brazil. Inversion models indicate the predominance of high cargabilidade that partially coincide with low resistivity values. Integration of geophysical data made possible the drafting of sections of electric walking with cross-checking distance x depth, for detailing your target. The integrated analysis of geophysical and geological structural data leads to the conclusion that the primary mining suffers structural control with the regional foliation in ores

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The aim of this paper is to analyze the translation of the work by the translator-traveller Richard Francis Burton, Explorations of the Highlands of the Brazil, with a full account of the gold and diamond mines, made by Américo Jacobina Lacombe, trying to relate the work of the latter to the editorial goals of the Brasiliana Collection. As a subseries of the Biblioteca Pedagógica Brasileira [Brazilian Pedagogical Library] published by Companhia Editora Nacional, Brasiliana was conceived in agreement with the 1930s and 1940s policies to expand lay education and make it possible for Brazilians to get to better know the greatness of their country. The paper will focus on the numerous translator’s notes, since many of them reveal Lacombe’s didactic purpose of informing readers about Brazilian history and geography. The analysis also examines the effacement of Burton’s translations from Portuguese into English in his book.

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A large amount of external factors that can foster the emergence of free radicals in organisms has created a imminent need for understanding and technologies that enables the search of antioxidant componds and extraction of antioxidants from natural sources. These compounds have great potential for kidnapping free radicals which are highly harmful to organisms, being the principal responsible for the decrease in the shelf life of foods, and aging. These free radicals are also related to diseases such as AIDS, arthritis, diabetes, heart disease and others. Fruits and vegetables are true mines of compounds with antioxidant potential, its vitamins and phenolic compounds present an essential role in the nutrition of living beings acting as a defense against degradation of lipids and proteins, which indicates the importance of a diet rich in these nutrients, given that part of the antioxidant defenses of the body comes from the diet. This revision study aims to put in evidence the indispensable role of antioxidants in the survival of organisms.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The concept of scientific literacy nowadays is permeated by principles eventually inconsistent. Development of cognitive skills, preparation for continuing studies in higher education, preparation for working life and the strengthening of citizenship are some of the competing goals of science education. In respect of Science, Technology, Society and Environment (STSE) Education, the politics of science should be properly taken into account by science education. This paper examines the concept of scientific literacy in the context of STSE Education and points to why and how physics education in high school curriculum should address topics of energy consumption and production in order to provide the background necessary to assess public policies of science, technology and innovation, in particular the Decennial Plan for Expansion of Energy 2020, subjected to public consultation by the Brazilian Ministry of Mines and Energy in 2011.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ciência dos Materiais - FEIS