483 research outputs found

    Financeirização como desenvolvimento do capital fictício : a crise financeira internacional e suas conseqüências no Brasil

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    The article analyses the notion of fictitious capital in Marx, and the idea of autonomy of circulation in relation to production. It explores, after this theoretical analysis, the evolution of financialization of the economies as development of fictitious capital and its relation with the current crisis. Finally, it analyses the impacts of crisis and its recovery in the case of Brazil.Financialization, Fictitious Capital, Crises, Brazil.

    Ultrastructural and morphometric characterization of buffalo (Bubalus bubalis) ovarian preantral follicles

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    The main objective of the present study was to characterize buffalo preantral ovarian follicles. Parts of ovarian cortex, collected from postpubertal buffalo females that were having estrous cycles at regular intervals, were selected under stereomicroscopy and processed for optic and transmission electron microscopy. Primordial follicles were characterized as an oocyte encircled by one layer of flattened cells. The buffalo primordial follicle has a mean diameter of 35 μm and the oocyte diameter is 24.9 μm. The oocyte nucleus is relatively large and eccentric; and in the cytoplasm a large amount of mitochondria, vesicles and endoplasmic reticulum cistern, mainly of the smooth type is observed. The primordial follicles cells are rich in plasma membrane invaginations, which are observed within the cell and between the cell and the oocyte. The primary follicles (mean diameter of 41.8 μm) consist of an oocyte, with a medium diameter of 26.9 μm, surrounded by one layer of cubical granulosa cells. At this follicular stage, the beginning of zona pellucida deposition can also be seen in areas between the oocyte and follicular cells. The secondary follicles, which are surrounded by more than one layer of cubical cells, have a diameter of 53.3 μm, and the oocyte has a mean diameter of 29.4 μm. The ultrastructural analysis showed a large amount of coalescent vesicles, more evident in the oocyte periphery. The zona pellucida (ZP) is thicker at this stage and contains a large quantity of glycoproteins. In general, the ultrastructure of buffalo preantral follicles was similar to that of other mammalian species, but some differences were observed, which indicate species specific characteristics. The main differences observed were cytoplasmic vesicles quantity, mitochondria shape and inner content, ZP deposition and granulosa cell–oocyte junctions. In conclusion, the morphological differences described in this paper, could be responsible for some functional differences observed in Bubalus bubalis in vitro embryo production and follicular dynamics, when compared with Bos taurus or Bos indicus species

    The potential to create employment and income from tourism in Brazil

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    The main objective of this paper is to asses the tourism activity in Brazil, and examine, particularly, its capacity to generate employment. To this aim an input output matrix, that considers the tourism as a set of sectors of the economy, was computed for the year 2006. This matrix made it possible to examine the main relationships between tourism and the rest of the economy. Forward linkages and backward linkages of the tourism sector were computed. In addition, the effects of the development of the tourism sector on income and employment were analyzed and compared in this respect with the average of the Brazilian economy.Tourism; Tourism Economic; Input-output Model; Employment and Income; Brazil

    Moko disease-causing strains of Ralstonia solanacearum" from Brazil extend known diversity in paraphyletic phylotype II

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    The epidemic situation of Moko disease-causing strains in Latin America and Brazil is unclear. Thirty-seven Ralstonia solanacearum strains from Brazil that cause the Moko disease on banana and heliconia plants were sampled and phylogenetically typed using the endoglucanase (egl) and DNA repair (mutS) genes according to the phylotype and sequevar classification. All of the strains belonged to phylotype II and a portion of the strains was typed as the Moko disease-related sequevars IIA-6 and IIA-24. Nevertheless, two unsuspected sequevars also harbored the Moko disease-causing strains IIA-41 and IIB-25, and a new sequevar was described and named IIA-53. All of the strains were pathogenic to banana and some of the strains of sequevars IIA-6, IIA-24, and IIA-41 were also pathogenic to tomato. The Moko disease-causing strains from sequevar IIB-25 were pathogenic to potato but not to tomato. These results highlight the high diversity of strains of Moko in Brazil, reinforce the efficiency of the egl gene to reveal relationships among these strains, and contribute to a better understanding of the diversity of paraphyletic Moko disease-causing strains of the R. solanacearum species complex, where the following seven distinct genetic clusters have been described: IIA-6, IIA-24, IIA-41, IIA-53, IIB-3, IIB-4, and IIB-25. (Résumé d'auteur

    Desapropriação por interesse social - Bem rural - Nulidade

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    Tribunal Federal de Recurso

    Novos Estabelecidos, novos Outsiders?

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    A recente decisão do STF pela não obrigatoriedade do diploma de jornalismo pode levar a uma reflexão sobre o próprio fazer jornalístico e de como esta decisão pode realocar social e culturalmente uma categoria profissional. O texto não pretende discutir as razões que levaram os ministros do STF a tal decisão, mas sim refletir, a partir dessa determinação, a própria prática jornalística, além de procurar oferecer uma discussão acerca da função dos cursos de comunicação e o possível novo posicionamento de profissionais formados e não formados

    Mandado de segurança - Medida liminar - Imposto de renda

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    Tribunal Federal de Recurso

    Rio de Janeiro as Brazilian journalism capital

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    The book paints a broad picture of the history of Rio press since the turn of the century Nineteenth to the twentieth century until the early years of the century, showing its influence on the rest of Brazil. The technological and stylistic innovations of the press, so as the social, cultural and political as much of Rio de Janeiro - until 1960 capital of the Republic - the country are also analyzed and presented by author, writing an important social web in which journalism has a role predominant, either as mediator or as a translator element of polyphony urban and representative of the desires and aspirations which are in all latitudes of the countryO livro traça um amplo painel da história da imprensa carioca desde a virada do século XIX para o século XX até os primeiros anos do século XXI, mostrando sua influência sobre o resto do Brasil. As inovações tecnológicas e estilísticas da imprensa, assim como as mutações sociais, culturais e políticas tanto do Rio de Janeiro – até 1960 a capital da República – quanto do país, também são analisadas e apresentadas pela autora, compondo uma importante teia social na qual o jornalismo tem um papel preponderante, seja como agente mediador, seja como elemento tradutor da polifonia urbana e representante dos anseios e das aspirações que se apresentam em todas as latitudes do país
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