61 resultados para 689


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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

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This study aimed to investigate physical performance of particleboards produced with waste from sawmills, containing different wood species, and two adhesives: urea-formaldehyde (UF) based resin and castor-oil (PU) based bi-component polyurethane resin. Panels were produced with nominal density 0.8gcm(-3); pressing temperature 110 degrees C; pressing time 10 min; specific pressure 5 MPa. Water absorption (2 and 24h); thickness swelling (2 and 24h); density; and moisture content were investigated. Results confirmed that the produced panels presented compatible physical properties in comparison with other researches referred in literature, proving the feasibility of inputs employed. Panels produced PU showed better performance than those produced with UF.

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The purpose of this study was nondecalcified histologic analysis of titanium implants modified by laser with and without hydroxyapatite. Implants with three modified surfaces were inserted into rabbit tibias: group 1, machined surface; group 2, irradiated (laser); and group 3, irradiated and hydroxyapatite coated (biomimetic method). The mean surface roughness (Ra) scores of groups 2 and 3 were higher than that of group 1. Bone-implant contact measurements at 30 and 60 days for groups 2 and 3 were higher than for group 1. Bone area at 30 and 60 days for group 2 was higher than for groups 1 and 3. Titanium implants modified by laser with and without hydroxyapatite exhibit increased early osseointegration.

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

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

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In 2008 two laws that changed the didactic- pedagogic and administrative organization of vocational schools were enacted: the Law 11.741/2008, which incorporated the Technical Professional Education for the Middle Level to Basic Education; and Law 11.892/2008,which has transformed Agrotechnical Schools, the CEFET 's and some technical schools linked to universities into Colleges of Education, Science and Technology (IFs). These institutions have been operating at all levels and types of education provided in the Law of Directives and Bases of National Education number 9394/1996, with the exception of Early Childhood Education. Vocational and training schools, which gave origin to the IFs,have historically restricted youth education to teaching professional techniques, but due to the reformist laws, they were led to revise their conceptions of work and education. Thus, the goal of this article is to analyze the concepts of Basic Education and work that permeate these laws and the organization of educational work at IFCE. Have these laws been promoting a rupture with the history of vocational education in the country? Have the IFs been accomplishing a teaching job in addition to technical training? The choice for these questions was motivated by two main reasons: a) Vocational Education in the aforementioned institutions have traditionally been restricted to the qualication of the labor force for learning a technical profession, without relating it to issues that concern basic education; b) The Reform of Basic Education, from 1990 to 2013, was conducted in the context of capital's structural crisis and aimed to adapt the educational system to the demands of productive sectors. Thus, the main objective of this paper is to explain the contradictions that exist in project of formation of the working class, in the context of a conictual society divided into classes, a situation that alienates the youth to live this time forever.

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Faz um levantamento do acervo de livros, da Biblioteca Conde de Moreira Lima, das Faculdades Integradas Teresa D’Ávila de Lorena - SP. Foram excluidos da pesquisa artigos de periódicos e estudos em outros suportes.

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The establishment of laboratory colonies of ticks is often hampered by their lack of adaptation to alternative hosts. The aim of this study was to artificially feed partially engorged Dermacentor (Anocentor) nitens females through plastic tips, and to identify what are the optimal conditions of application of this technique to get as much as possible close to the natural conditions. The technique of artificial feeding through plastic tips allowed the engorgement of D. nitens ticks to a final weight within the normal range for the species. (C) 2014 Published by Elsevier GmbH.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The cct isomers [RuCl 2(CO) 2(PPh 3) 2] (1) and [RuCl 2(CO) 2(AsPh 3) 2] (2) were synthesized from [RuCl 3(PPh 3) 2DMA]DMA and [RuCl 3(AsPh 3) 2DMA]DMA, respectively. The complexes were characterized by elemental analysis, IR and UV-vis spectroscopy and their molecular structures were found to be cis-cis-trans isomers by X-ray crystallography. Cyclic voltammetry data show that the tripenylphosphine stabilizes better the ruthernium(II) complex than the tripenylarsine ligand. © 1994.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Enteric organisms, pseudomonads and other opportunistic microorganisms in the oral microbiota have been linked to serious infections in patients hospitalized in intensive care units (ICU). The present study evaluated the presence of family Enterobacteriaceae, Pseudomonas aeruginosa, and Acinetobacter baumannii in the mouth of patients in ICU, correlating it with oral and systemic conditions. Data on health, socioeconomic status, medication use, drug addiction, medical and family histories of patients held for more than 72 hours in the ICU with a diagnosis of severe infection or that developed this condition after entry in said unit were obtained. Fifty patients provided clinical samples of supragingival and subgingival biofilms, saliva and oral mucous membranes were collected, as well as respiratory secretions from patients with pneumonia, blood and urine for sepsis. The presence of target microorganisms was carried out by polymerase chain reaction (PCR) and by culture using selective media. The Chi-square and Mann-Whitney tests were used for statistical analysis, and the significance level was 5%. The intraoral clinical conditions of the patients were poor. The family Enterobacteriaceae was the most prevalent, affecting 39.5% of the supragingival biofilm samples of patients attended in ICU and 18.6% of patients in the control group, besides the rods were the only group found in extraoral samples.