2,561 research outputs found

    Habitus camponês-caboclo e disposições temporais nos camelôs do centro comercial de Belém (Paper 385)

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    Este artigo visa demonstrar que as disposições produtivas do tipo camponês-caboclo, descrito por Costa (2012a e 2012b), estão presentes nos camelôs do Centro Comercial de Belém. Para isso, este estudo se baseia em Schutz (1967, 1970 e 1987), em que a experiência intersubjetiva é uma co-constituição do mundo social pelas consciências que nele estão presentes, a partir da sedimentação e transmissão das reservas de experiência. A pesquisa argumenta ainda a importância de compreender a dimensão incorporada desses modos práticos de conhecimento e ação, através da noção de habitus, de Bourdieu (2009). A identificação desses sedimentos foi feita, juntamente, com a compreensão das especificidades do tipo camelô na contemporaneidade através de uma pesquisa de campo de inspiração etnográfica, dentro da perspectiva de um fenômeno social total, aos moldes de Mauss (2003), ou seja, com seus aspectos religiosos, sensíveis, políticos e familiares. Para captar esses aspectos do universo camelô foram realizadas 10 entrevistas em profundidade, com roteiro flexível, de agosto de 2016 a junho de 2017.Palavras-chave: Camelôs. Caboclos. Setor Informal. Trabalho. Centro Comercial de Belém

    Diffuse large B-cell lymphoma, not otherwise specified of the palate: a case report

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    Diffuse large B-cell lymphoma (DLBCL) is the most frequent type of non-Hodgkin´s lymphoma found in oral and maxillofacial regions. A large number of cases may be biologically heterogeneous, which are commonly defined as DLBCL, not otherwise specified (NOS) by the World Health Organization (WHO-2008). The present case reports on an ulcer of raised and irregular edges, found on the border between the hard and soft palate, as the first and only manifestation of an extranodal non-Hodgkin lymphoma in an 85-year-old patient. Incisional biopsy was carried out, and the specimen revealed a proliferation of large lymphoid cells suggestive of diffuse large cell lymphoma. An immunohistochemical analysis was performed. EBV-RNA was assessed by in situ hybridization that also proved to be negative. Immunohistochemical and EBV analyses are important to avoid delays and inappropriate treatment strategies. Although advanced age is considered an adverse prognostic factor, early diagnosis did prove to be a key contributory factor in the cure of non-Hodgkin lymphoma

    The experience of the municipalities of Minas Gerais State (Brazil) that implemented local environmental licensing

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    The objective of this study was to explore the experience of the municipalities of the state of Minas Gerais that implemented local environmental licensing. For this purpose, representatives of the state administration were interviewed, and an electronic questionnaire was sent to analysts of 121 municipalities that took up environmental licensing, from which 39 responses were obtained. The key drivers of local environmental licensing were concerns over licensing procedural delays by the state government and the need for administrative efficiency. Knowledge of local conditions and the proximity between the local government, communities and developers were identified as facilitators of licensing. Shortage of staff, precarious hiring processes, and lack of infrastructure were identified as the main barriers to local environmental licensing. The municipalities that have implemented local environmental licensing perceive planning, administrative capacity, competent technical and legal teams, and capacity-building as essential elements of an effective local environmental licensing system. The study concludes with suggestions of future research avenues.The objective of this study was to explore the experience of the municipalities of the state of Minas Gerais that implemented local environmental licensing. For this purpose, representatives of the state administration were interviewed, and an electronic questionnaire was sent to analysts of 121 municipalities that took up environmental licensing, from which 39 responses were obtained. The key drivers of local environmental licensing were concerns over licensing procedural delays by the state government and the need for administrative efficiency. Knowledge of local conditions and the proximity between the local government, communities and developers were identified as facilitators of licensing. Shortage of staff, precarious hiring processes, and lack of infrastructure were identified as the main barriers to local environmental licensing. The municipalities that have implemented local environmental licensing perceive planning, administrative capacity, competent technical and legal teams, and capacity-building as essential elements of an effective local environmental licensing system. The study concludes with suggestions of future research avenues.The objective of this study was to explore the experience of the municipalities of the state of Minas Gerais that implemented local environmental licensing. For this purpose, representatives of the state administration were interviewed, and an electronic questionnaire was sent to analysts of 121 municipalities that took up environmental licensing, from which 39 responses were obtained. The key drivers of local environmental licensing were concerns over licensing procedural delays by the state government and the need for administrative efficiency. Knowledge of local conditions and the proximity between the local government, communities and developers were identified as facilitators of licensing. Shortage of staff, precarious hiring processes, and lack of infrastructure were identified as the main barriers to local environmental licensing. The municipalities that have implemented local environmental licensing perceive planning, administrative capacity, competent technical and legal teams, and capacity-building as essential elements of an effective local environmental licensing system. The study concludes with suggestions of future research avenues.The objective of this study was to explore the experience of the municipalities of the state of Minas Gerais that implemented local environmental licensing. For this purpose, representatives of the state administration were interviewed, and an electronic questionnaire was sent to analysts of 121 municipalities that took up environmental licensing, from which 39 responses were obtained. The key drivers of local environmental licensing were concerns over licensing procedural delays by the state government and the need for administrative efficiency. Knowledge of local conditions and the proximity between the local government, communities and developers were identified as facilitators of licensing. Shortage of staff, precarious hiring processes, and lack of infrastructure were identified as the main barriers to local environmental licensing. The municipalities that have implemented local environmental licensing perceive planning, administrative capacity, competent technical and legal teams, and capacity-building as essential elements of an effective local environmental licensing system. The study concludes with suggestions of future research avenues

    Influence of plasma nitriding with a nitrogen rich gas composition on the reciprocating sliding wear of a DIN 18MnCrSiMo6-4 steel

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    In this study, the sliding wear of a DIN 18MnCrSiMo6-4 continuous cooling bainitic steel plasma nitrided with a nitrogen rich gas composition was investigated. To evaluate the influence of processing time and temperature on mechanical and microstructural characteristics of nitrided layer, the samples were nitrided at 400, 450, 500 and 550 °C for 3, 6 and 9 h. The produced nitrided layers were characterized concerning the microstructure, phase composition, microhardness and surface roughness. The samples were tested by ball-on-flat reciprocating dry sliding for friction coefficient and wear analysis. The tests were stopped after a given damage criteria involving the rapid growth of the friction coefficients and wear. The correlation of the different treatment parameters and resulting case depths and surface hardness with sliding distance at the time of microcracks formation or delamination of the surface layer was evaluated statistically by the analysis of variance (ANOVA). The plasma nitrided samples at 550 °C showed better wear performances in the ball-on-flat tests than the other groups investigated, since these samples have a thicker compound layer and diffusion zone higher than the other conditions investigated. In general, the beginning wear is slower because of the hardest region of the compound layer

    As fraturas da modernização em Morte e Vida Severina

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    O Grupo Literatura e modernidade periférica consta do Diretório dos Grupos de Pesquisa no Brasil do CNPq e é coordenado pelo Prof. Dr. Hermenegildo José de Menezes Bastos, da Universidade de Brasília. Integram-no professores da UnB e alunos do programa de pós-graduação em literatura. Atuando nas áreas de crítica materialista e histórica e enfocando, primordialmente, as relações entre o sistema literário e o projeto modernizador ocidental, o grupo tem produzido dissertações de mestrado e teses de doutorado. Tem, ainda, publicado livros e artigos em periódicos especializados e participado de congressos de amplitude nacional e internacional. O presente trabalho foi escrito em conjunto pelos pesquisadores: Profa Dra. Ana Laura dos Reis Corrêa; Drnd° André Matias Nepomuceno; Prof. Drnd" Alexandre Pilati; Profa Drnd". Deane Maria Fonseca de Castro e Costa; Profa Drnda Maria Izabel Brunacci; Profa Drnda Germana Henriques Pereira de Sousa e Grnd° Thiago Chacon.Morte e vida severina é um impressionante exemplo de como a literatura pode evidenciar um significativo sentimento de dilaceramento do autor diante das contradições entre a realidade local periférica e a universalidade literária, política e econômica. Os muitos Severinos do poema expõem as tensões de uma existência cujo destino é "seguir o próprio enterro". O objetivo do trabalho é analisar tais tensões com ferramentas da crítica materialista, mostrando como o poema testemunha os efeitos predatórios de uma globalização espoliadora. _______________________________________________________________________________________ ABSTRACTMorte e vida severina is an impressive example of how literature can evidence a meaningful feeling of a writer tearing up in presence of the contradictions between the local peripheral reality and the literary, political and economic universality. The poor peasants, "Severinos", that emerge from the poem expose existence tensions whose fate is "to follow the own funeral". This paper intends to analyze such tensions with materialist critics tools, in order to show how the poem evidence the predatory effects of exploitative globalization

    HARA: Aplicativo com Realidade Aumentada para Apoiar o Ensino de Hardwares de Computadores / HARA: Augmented Reality Application to Support the Teaching of Computer Hardware

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    Este artigo descreve o desenvolvimento e validação de um aplicativo móbile em Realidade Aumentada para alunos do ensino médio do curso técnico em Manutenção e Suporte de Computadores do Instituto Federal do Amazonas IFAM Itacoatiara-AM. O estudo objetivou-se a desenvolver e validar um aplicativo em Realidade Aumentada para apoiar o processo de ensino de componentes de hardware de computadores. A metodologia da pesquisa é baseada em estudos experimentais de caráter qualitativo. Os resultados mostram indícios que o Aplicativo pode ser útil para auxiliar no processo de ensino de hardwares de computadores

    Hemoglobin Uptake by Paracoccidioides spp. Is Receptor-Mediated

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    Iron is essential for the proliferation of fungal pathogens during infection. The availability of iron is limited due to its association with host proteins. Fungal pathogens have evolved different mechanisms to acquire iron from host; however, little is known regarding how Paracoccidioides species incorporate and metabolize this ion. In this work, host iron sources that are used by Paracoccidioides spp. were investigated. Robust fungal growth in the presence of the iron-containing molecules hemin and hemoglobin was observed. Paracoccidioides spp. present hemolytic activity and have the ability to internalize a protoporphyrin ring. Using real-time PCR and nanoUPLC-MSE proteomic approaches, fungal growth in the presence of hemoglobin was shown to result in the positive regulation of transcripts that encode putative hemoglobin receptors, in addition to the induction of proteins that are required for amino acid metabolism and vacuolar protein degradation. In fact, one hemoglobin receptor ortholog, Rbt5, was identified as a surface GPI-anchored protein that recognized hemin, protoporphyrin and hemoglobin in vitro. Antisense RNA technology and Agrobacterium tumefaciensmediated transformation were used to generate mitotically stable Pbrbt5 mutants. The knockdown strain had a lower survival inside macrophages and in mouse spleen when compared with the parental strain, which suggested that Rbt5 could act as a virulence factor. In summary, our data indicate that Paracoccidioides spp. can use hemoglobin as an iron source most likely through receptor-mediated pathways that might be relevant for pathogenic mechanisms

    Fractionation of nitrogen compounds and carbohydrates in forages of different ages

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    The objective of this study was to evaluate the chemical composition and protein and carbohydrate fractions in three forage species (Andropogon gayanus Kunth, Cenchrus ciliares L. and Panicum maximun x Panicum infestum) at four cutting ages: 21, 35, 49 and 63 days. Experiments were carried out at the Federal Institute of Education Science and Technology of Rio Grande do Norte - IFRN, located in the municipality of Apodi- RN, Potiguar West Meso-region. Materials collected in the field were analyzed in the Laboratory of Animal Nutrition (LANA), Federal Rural Semiarid University (UFERSA), Campus Mossoró, RN. Samples were processed, phenated, and analyzed. The analysis conducted included fractionation of nitrogen compounds and carbohydrates and chemical composition (dry matter, mineral matter, crude protein, lipids and fibers) was determined. The forages evaluated showed decreasing crude protein content with increasing cutting age, ranging between 14.9 and 6.2%. Andropogon grass showed the highest crude protein content. The fiber content increased with age. Fiber consisted of 62.4%–70.0% NDF and 30.07%–33.03% ADF. Highest fiber content was recorded for Massai grass, in which case, these two component species showed the highest fractions of intermediate degradation protein (B2), while Andropogon and Buffel Capins showed higher fractions of non-fibrous carbohydrates (A and B1). An increase in the concentration of cell-wall material in the detriment of the cellular content with increasing plant age was observed in the fodder studied. We also observed an increase in the indigestible fraction (C) of proteins and carbohydrates in the species studied
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