Estudio económico de América Latina y el Caribe, 1992: Haití: versión preliminar

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Estudio económico de América Latina y el Caribe, 1992: México: versión preliminar

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Estudio económico de América Latina y el Caribe, 1992: Chile: versión preliminar

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Estudio económico de América Latina y el Caribe, 1992: Nicaragua: versión preliminar

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Estudio económico de América Latina y el Caribe, 1992: Honduras: versión preliminar

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Estudio económico de América Latina y el Caribe, 1992: Brasil: versión preliminar

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Influência do raio de ponta do entalhe, do tipo de carregamento e da microestrutura no processo à fratura do aço estrutural ABNT-4340

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Determinação de boro, enxofre e fósforo em plantas medicinais por espectrometria de absorção atômica de alta resolução com fonte contínua

Pós-graduação em Química - IQ

Aspectos clínico-patológicos do envenenamento botrópico experimental em equinos

Estudou-se as alterações clínico-patológicas e laboratoriais em equinos, inoculados experimentalmente com a peçonha de Bothropoides jararaca, Bothrops jararacussu, Bothrops moojeni e Bothropoides neuwiedi, com a finalidade de fornecer subsídios para o diagnóstico do envenenamento pela picada dessas. Os venenos liofilizados foram diluídos em 1ml de solução fisiológica e administrados a seis equinos, por via subcutânea, nas doses de 0,5 e 1mg/kg (B. jararaca), 0,8 e 1,6mg/kg (B. jararacussu), 0,205mg/kg (B. moojeni) e 1mg/kg (B. neuwiedi). Todos os equinos, menos os que receberam o veneno de B. jararacussu, morreram. Os sinais clínicos iniciaram-se entre 8min e 2h10min após a inoculação. O período de evolução variou, nos quatro casos de êxito letal, de 24h41min a 70h41min, e nos dois equinos que se recuperaram foi de 16 dias. O quadro clínico, independente do tipo de veneno e das doses, caracterizou-se por aumento de volume no local da inoculação, arrastar da pinça do membro inoculado no solo, inquietação, apatia, diminuição da resposta aos estímulos externos, mucosas pálidas e hemorragias. Os exames laboratoriais revelaram anemia normocítica normocrômica com progressiva diminuição no número de hemácias, da hemoglobina e do hematócrito, e leucocitose por neutrofilia. Houve aumento de alamina aminotransferase, creatinaquinase, dehidrogenase láctica, ureia e glicose, bem como aumento do tempo de ativação da protrombina e do tempo de tromboplastina parcial ativada. Os achados de necropsia foram extensas hemorragias no tecido subcutâneo, com presença de sangue não coagulado e em boa parte associadas a edema (edema hemorrágico), que se estendia desde o local da inoculação até as regiões cervical, torácica, escapular e membro. Na periferia das áreas hemorrágicas havia predominantemente edema gelatinoso. Havia ainda presença de grande quantidade de líquido sanguinolento nas cavidades torácica, pericárdica e abdominal. Não foram encontradas alterações histológicas significativas.

"Indigitado estrupício": arqueologia e significados acerca do muro do Forte do Presépio (Belém-Pará)

Entre os anos de 1999 e 2002, o Forte do Presépio em Belém (PA), foi alvo de pesquisas multidisciplinares voltadas ao seu restauro e adequação com vias à sua musealização na conjuntura do Projeto Feliz Lusitânia. Uma das ciências que se dedicou a essa investigação foi a arqueologia, tendo tido uma atuação significativa na condução desse projeto. Durante esse processo, uma questão tomou dimensões exteriores à pesquisa arqueológica: a derrubada de um muro que se afigurava entre a rua e a fortificação. Neste contexto, o muro foi considerado uma "fantasmagoria" que impedia a antiga simbiose entre a fortaleza e a cidade. Contudo, a demolição da muralha foi uma decisão tomada à revelia da equipe de arqueologia, mas de acordo com os interesses estético-funcionais do plano museológico. Para justificar essa ação, uma série de atribuições de sentidos foi dada ao referido artefato ("indigitado estrupício”, “estrovenga", “aberração”). Isto posto, este trabalho pretende debater dois aspectos: (a) os significados dados ao muro, entendido como artefato capaz de suscitar ";;maneiras distintas de ver e agir no mundo"; e (b) o posicionamento efetivo da equipe de arqueologia diante da derrubada do muro.

Plantas medicinais abortivas utilizadas por mulheres de UBS: etnofarmacologia e análises cromatográficas por CCD e CLAE

The use of medicinal plants corresponds to an ancient practice, either as an alternative medicine for the cure of several diseases, or as a method of abortion. Nevertheless, the population in general does not know the risks involved in the use of medicinal plants. In this sense, the purpose of the study was to evaluate the consumption rate of medicinal plants by women in a Basic Health Unit (BHU), on order to identify which plant species have been most frequently consumed by them, including during the pregnancy. Through an exploratory questionnaire with 48 women, it was observed that most part of the interviewees had children and the most of them cited Peumus boldus, Baccharis trimera and Cassia angustifolia, which were mainly used for stomach aches or digestives (53%), for colds (23%), menstrual cramps (4%) or to menstruate (2%). The remaining part of the study consisted in the visual and chemical analysis of the plant species cited by the interviewees, including other species that have been popularly used as a method of abortion. Comparative visual analysis of medicinal plants (Group A-C) from four different shops showed the absence of quality control concerning packing specifications and the separation of the plant material to be consumed. The analysis of the chemical profiles of these samples by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) indicated that those species belonging to the Group C were significantly different from those plants having the same identification, except for Peumus boldus, whose samples were similar in terms of chemical composition.

Tratamento químico de sementes de milho e o teste de condutividade elétrica

In different crops, the seeds treatment with the use of fungicides and/or insecticides has been performed before the storage or in the seeding moment as a guarantee form of longer conservation period and adequate initial stand. However, it is not known if the various products used for the treatment interfere with test results of electrical conductivity of corn seeds. The experimental design was completely randomized and the analysis carried out in a factorial 5x5x2 with four replications. The treatments consisted of five cultivars of corn (DKB 390YG, DKB 185YG, 2B710, AGN-30A91HX and AL Bandeirante) treated with four insecticides (imidacloprid+thiodicarbe, thiamethoxam, fipronil, fipronil+piraclostrobin+thiophanate-methyl), and the control previously treated by the company with fungicides (fludioxonil+metalaxyl-M e captan) and insecticides (pirimiphos-methyl, deltamethrin e bifenthrin), analyzed in two different times (after treatment and at 35 days of storage). Seeds were subjected to tests of germination, electrical conductivity and water content. The results showed that the treatment of corn seeds with insecticides and fungicides doesn't interfere on the test results of electric conductivity, even if the analysis is made after 35 days of storage of seeds.

Effects of laser beam energy on the pulsed Nd:YAG laser welding of thin sheet corrosion resistant materials

The aim of this study was to value the possibility to join, for pulsed Nd:YAG laser welding, thin foils lap joints for sealing components in corrosive environment. Experimental investigations were carried out using a pulsed neodymium: yttrium aluminum garnet laser weld to examine the influence of the pulse energy in the characteristics of the weld fillet. The pulse energy was varied from 1.0 to 2.5 J at increments of 0.25 J with a 4 ms pulse duration. The base materials used for this study were AISI 316L stainless steel and Ni-based alloys foils with 100 mu m thickness. The welds were analyzed by electronic and optical microscopy, tensile shear tests and micro hardness. The results indicate that pulse energy control is of considerable importance to thin foil weld quality because it can generate good mechanical properties and reduce discontinuities in weld joints. The ultimate tensile strength of the welded joints increased at first and then decreased as the pulse energy increased. In all the specimens, fracture occurred in the top foil heat-affected zone next to the fusion line. The microhardness was almost uniform across the parent metal, HAZ and weld metal. A slight increase in the fusion zone and heat-affected zone compared to those measured in the base metal was observed. This is related to the microstructural refinement in the fusion zone, induced by rapid cooling of the laser welding. The process appeared to be very sensitive to the gap between couples.

Filosofia da Educação no Brasil: concepções, impasses e desafios para a sua constituição como campo de pesquisa e o seu ensino nasduas últimas décadas

This article analyses the constitutions of the Philosophy of Education’s field in Brazil, from 1990 to the present day, with the purpose of analyzing the genealogy of his “crisis” as a discipline, discussing the dilemmas of its development and to indicate their main challenges today. For such purposes, by means of a genealogical method, we analyze the conceptions of philosophy of education drawn from the theoretical perspective, as well as rebuild historically the clashes caused about certain topics and, particularly, about the human formation. We conclude that the thematic shifts produced and the proliferation of those perspectives were responsible for producing lands to the dialogue between them, however, this strategy does not alleviate some problems of Philosophy of Education in Brazil, demonstrating the presence of two philosophical traditions in the current debate and demanding position of those who work in this field of research and teaching in relation to them.

Balanced anesthesia with sevoflurane does not alter redox status in patients undergoing surgical procedures

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