999 resultados para transformações de fase


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O presente trabalho discute a relação sociedade e natureza a partir do estudo de caso dos processos erosivos identificados em um recorte espacial, localizado no Noroeste do município de Regente Feijó/SP. As dinâmicas socioeconômicas que se processaram no Oeste Paulista e, consequentemente, no município de Regente Feijó, ao longo das décadas de ocupação, são evidências das lógicas de apropriação ancoradas em pressupostos de exploração massiva dos recursos naturais, tendo em vista a produção de gêneros agrícolas valorizados no mercado internacional, tais como o café, o algodão e a cana-de-açúcar. Além disso, a pecuária também se constituiu como importante base econômica regional e, somada aos demais usos agrícolas, contribuiu para o depauperamento dos solos, o assoreamento dos cursos d’água e o surgimento de erosões (laminares e lineares) nas áreas rurais e urbanas. Neste sentido, além da discussão envolvendo os problemas desencadeados pelo agravamento dos processos erosivos aos pequenos produtores rurais e aos moradores do Distrito de Espigão, é evidenciada a importância das práticas conservacionistas como forma de contingenciamento de tais fenômenos

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Energy is a physical quantity very present in physics. Although extremely useful, its concept is very abstract for most students in high school and college. Identify the presence and form of energy in a given phenomenon is not simple, as there is immediate understanding on the transfer and transformation. This work emphasizes the study of mechanical energy in its different forms as well as the thermal energy, considering the possible transformations between them. To this end, use is mad of toys, exploring its potential as an alternative material to be use in supplement classroom teaching in primary and secondary levels. The proposed use of ludic pedagogy takes into account the author’s experience as an intern project Toy Scientific Department of Physics and its role as mediator in the workshops offered by the project to school at these levels

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The objective of this study was to compare the power corresponding to maximal lactate steady state determined through continuous (MLSSC) and intermittent protocol with active recovery (MLSSI). Ten trained male cyclists (25 ± 4 yr, 72.5 ± 10.6 kg, 178.5 ± 4.0 cm), performed the following tests on different days on a cycle ergometer: (1) incremental test in order to determine the anaerobic threshold (AT) and maximal power (Pmax); (2) two to five constant workload tests to determine MLSSC, and; 3) two to three constant workload tests to determine MLSSI, consisting on 8 x 4 minutes bouts interspersed by two minutes of active recovery at 50% Pmax (i.e., 46 min of exercise protocol). MLSS intensity was defined as the highest workload at which blood lactate concentration did not increase by more than 1 mM between minutes 10 and 30 of the constant workload. The workload corresponding to MLSSC (273.2 ± 21.4 W) was significantly lower than that corresponding to MLSSI (300.5 ± 23.9 W). With base on these data, it can be verified that the intermittent exercise mode utilized in this study, allows an increase of 10% approximately, in the exercise intensity corresponding to MLSS.

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It is known that the process of capitalist restructuring resulted in socio-spatial transformations in various geographical scales. Space is continually diversifying and redefining their roles, driven mostly by external agents. This search analyzes how and intensities are consolidating these new refunctionalisation the District of Gardenia city of Rancharia-SP.The study brings some concepts in the definition of small town, which are fundamental to the definition of the area that is the object of our study. Some features are explained in the District, such as location, history of economic activities preterit in a record that cover the 1950s to the present day. From this record ,it will be exposed and analyzed the services (private and collective goods) offered to the population in order to highlight their importance for better social equity. The information for your preparation of this work were supported mostly on reports and records historical and contextualized with specific bibliography. In developing the search is portrayed as the district Gardenia was modifying its economic activities, physical space and how it is currently being structured with tourist activity. There is also intended to show that even though the district with urban core urban functions simple in content space is consolidating complex processes in its various dimensions

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The process of urbanization that happened in Brazil during the twentieth century led to processes of structuring and re-organization of space, besides the emergence of many urban problems. Industrialization and urbanization are some of the main causes that could be cited as consequences of this process. As a result of the steep rise of cities, the transport systems became fundamental in boosting flows (immaterial) and the mobility of people and stuff (materials) in the territory. The urban model created for the city of São Paulo in the 1930s was repeated over the years in the medium-sized cities, being repeated the same problems that occurred in the metropolis. In this context our work fits in analyzing the changes occurring in the urban area of São José do Rio Preto - SP, from his relationship with the public transportation system in the face of intra-urban spatial configuration of the city. Transport, while it is recognized by authors as being really important for the analysis and intra-urban spatial configuration, has been little analyzed as the object of study by a geographer, and so, our work has more value

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

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Da escrivaninha do autor às prateleiras das livrarias, todo texto “veste-se”, orna-se de acessórios, até tornar-se o objeto-livro, ser oferecido ao público e ser lido/consumido pelo leitor. Essas transformações, ocorridas em sua maioria na fase da editoração, podem ou não contar com a participação e, sobretudo, com o aval do autor. Quanto maior o sucesso ou prestígio da obra ou do escritor, mais próximo o autor parece estar das decisões de um lançamento e mais afastado de todos os seus desdobramentos: reedições, posteriores edições populares ou de bolso, traduções. A análise paratextual, mais especificamente a análise das capas de livros, permite-nos observar, quanto à publicação de literatura brasileira no exterior, que o mercado editorial estrangeiro adota com frequência, como vem ocorrendo há décadas, a opção com forte apelo ao exotismo tropical: paisagens cariocas, frutas coloridas, biótipos negro ou mestiço. Em algumas ocasiões, entretanto, notamos a preocupação na correspondência temática ou de gênero com a obra. Em ambos os casos os resultados podem ser surpreendentes, bem sucedidos ou provocar malentendidos e interpretações ambíguas. Propomos neste trabalho a apreciação e a análise de alguns desses casos em autores de literatura brasileira traduzidos e consagrados no exterior como escritores de literatura policial e suas vertentes: Rubem Fonseca, Patrícia Melo, Garcia-Roza e Tony Bellotto, começando por Rubem Fonseca.