983 resultados para 1948-1992


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O artigo analisa o impacto das transformações no Leste Europeu sobre o Partido Comunista do Brasil (PC do B), entre o 7a Congresso Partidario (maio de 1988) e o 8° Congresso (fevereiro de 1992). Esse impacto levou a mudanças no partido, as quais podem ser assim resumidas: crítica moderada a Stalin, mais importante por ser a primeira na história do PC do B (manteve-se, entretanto, a concepção de partido marxista-leninista de vanguarda); abandono da teoria das duas etapas da revolução brasileira; realinhamento político no plano internacional, em apoio a partidos comunistas dentro e fora do poder; pêndulo à esquerda na política interna brasileira.

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The São Paulo State has as one of its main rivers the Tietê, which is an extremely important source because of its biodiversity, use in navigation and mainly as direct supplier of water for thousands of people in the region. Currently, the biodiversity of marine and freshwater ecosystems has been threatened, primarily by environmental problems resulting from the degradation of ecosystems, an example is the stretch of the Middle Tietê River, where the Barra Bonita dam (SP) focused virtually the whole load organic effluents from the metropolitan region of São Paulo, leading to eutrophication with the loss of water quality. This basin is located in the Peixe’s River, a tributary of the Barra Bonita whose sources are on the slopes of the Cuesta de Botucatu, presenting an altitudinal gradient in a good state of conservation and water quality. From another perspective, the studies related to parasites and other pathogens of aquatic organisms have considerably increased the relevance, especially those hosts with potential for growing and marketing, given the significant increase these activities in Brazil and worldwide. Among the agents responsible for diseases in fish are the myxosporean, which can cause major economic damage, with high mortality ratios. Based on the above, this study evaluated the biodiversity of myxosporean parasites of two species of fish Acestrorhynchus lacustris and Steindachnerina insculpta. During the period January to November 2012, 40 specimens of Acestrorhynchus lacustris and 33 specimens of Steindachnerina insculpta were collected from the Peoxe’s river at four different points. The necropsies were performed and all organs were analyzed looking for myxosporean. Only the species Steindachnerina insculpta had their gills parasitized by two species of the genus Henneguya

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The oil market is not a common market, and its complexity increases dramatically when considering the strategic and geopolitical involved, thus resulting in large uncertainties and concerns. The attempt to control prices has always been a challenge for the major world powers, since the increase in oil prices benefits the exporting countries, but harms importers, especially those regarded as less developed. Understand and try to predict some strategies adopted up the oil crises is one of the main points of the research, in order to demonstrate how economics can be used as an instrument of power and domination between nations, and how plans and strategies and rearrangements of supply and demand favor the growth of this economy, especially in the current period, with the new Brazilian oil era, beginning with the discovery of pre-salt, amid a context of growing need for the use of oil and its derivatives

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It was investigated how the conceptions of PT for the educational area defended in national meetings of the party have configured as policies in the City Hall of São Paulo during 1989-1992. It was made an analysis of official documents and measures adopted by the Municipal Education Secretariat. Then, it could be concluded that the priorities of implementation of the PT proposal entitled popular public school were based on four categories: Democratization of Management; New Quality of Teaching; Movement of Adult and Youth Literacy (MOVA) and Democratization Access.

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Pós-graduação em Geociências e Meio Ambiente - IGCE

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Pós-graduação em História - FCLAS

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“This presentation utilizes correspondence theory to analyze African American undergraduate student access to and completion of higher education in the United States. Findings from this research are presented and policy recommendations affecting Black student enrollment and graduation are discussed.”

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The influence of the 1992-1993 El Nino events on the reproductive behavior of the Scomber japonicus peruanus (Chub mackerel) was studied from samples collected monthly, along the Peruvian coast (3 degrees 23`S-14 degrees 00`S), from January 1990 to December 1993. The monthly variation of the gonadosomatic index and the frequency of the periods of gonad maturation evidenced that the spawning of the species occurred all year long, being more intense in summer. The values of the gonadosomatic index were higher during the occurrence of the 1992-1993 El Nino, while the body weight and gonad weight decreased. Regarding the condition factor, its values decreased in females over 35 cm in fork length.