997 resultados para Canais de transmissão
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Trata-se de um estudo descritivo e qualitativo, realizado com o objetivo de conhecer a nível nacional na área da saúde sobre a atuação da enfermeira durante o pré-natal da gestante soropositiva para o HIV. Trabalho de atualização sobre a redução da transmissão vertical do vírus da imunodeficiência humana (HIV), um dos grandes desafios para a assistência de enfermagem no próximo milênio. Os resultados apontaram que o papel da enfermeira no pré-natal da gestante soropositiva para o HIV, no Brasil, vai ao encontro das recomendações do Ministério da Saúde, pois ela executa a consulta de enfermagem, realiza grupos de gestantes, informa as medidas disponíveis para a diminuição da redução da transmissão vertical, a necessidade de não amamentar, a importância do uso de preservativos nas relações sexuais e a testagem do parceiro, dessa forma oportunizando uma qualidade de vida às mulheres soropositivas no período gravídico-puerperal. A enfermeira ainda é descrita como uma profissional capacitada e facilitadora do processo de educação em saúde a partir de um vinculo que estabelece, contribuindo uma relação de confiança entre ela (profissional), a gestante e a família
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Este trabalho tem como objetivo elaborar uma proposta de intervenção voltada para a educação em saúde sobre a potabilidade da água e transmissão de doenças de veiculação hídrica na população e nos profissionais de saúde de ESF da zona rural do município de Três Pontas-MG. Mediante os dados levantados durante a realização do diagnóstico situacional da aréa e o levantamento dos nós críticos, principalmente em relação ao alto índice de famílias que utilizam água da fonte e sem tratamento e com desprezo do esgoto em fossas ou diretamente aos mananciais, sem o devido tratamento do mesmo, percebeu-se a necessidade de desenvolver um plano de ação voltado para a educação em saúde sobre a potabilidade da água e transmissão de doenças de veiculação hídrica nesta população e em profissionais de saúde que nestes serviços. Com isso, foram elaboradas algumas intervenções a serem realizadas com a população alvo deste projeto, destacando, principalmente, a realização de educação continuada e capacitação dos servidores (profissionais de saúde) oferecidos pelo Enfermeiro sobre a transmissão de doenças de veiculação hídrica e potabilidade da água, nos Pontos de apoio (unidades) da ESF Zona Rural de Três Pontas-MG, e posteriormente a educação em saúde da população desta área. Mediante a realização deste projeto de intervenção, espera-se que a população possa refletir sobre o ato mais singelo do cotidiano, assim como desenvolver um pensamento que propicie a colaboração para saúde da água da comunidade, evitando a contaminação desta água, e consequentemente a transmissão de doenças, proporcionando a esta população uma vida com mais qualidade
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CONTEXT: Intestinal constipation - a common symptom among the general population - is more frequent in women. It may be secondary to an improper diet or organic or functional disturbances, such as dyskinesia of the pelvic floor. This is basically characterized by the absence of relaxation or paradoxical contraction of the pelvic floor and anal sphincter during evacuation. OBJECTIVE: To analyze, by manometric data, the anal pressure variation at rest, during evacuation effort by using the Valsalva maneuver and forced post-expiratory apnea in subjects with secondary constipation. METHODS: Twenty-one patients (19 females - 90.4%) with a mean age of 47.5 years old (23-72) were studied. The diagnosis was performed using anorectal manometry, with a catheter containing eight channels disposed at the axial axis, measuring the proximal (1) and distal (2) portions of the anal orifice. The elevation of the pressure values in relation to the resting with the evacuation effort was present in all patients. The Agachan score was used for clinical evaluation of constipation. The variables studied were: mean anal pressure of the anal orifice for 20 seconds at rest, the effort of evacuation using Valsalva maneuver and the effort of evacuation during apnea after forced expiration, as well as the area under the curve of the manometric tracing at moments Valsalva and apnea. RESULTS: The analysis of the mean values of the anal pressure variation at rest evidenced difference between proximal and distal channels (P = 0.007), independent of the moment and tendency to differ during moments Valsalva and apnea (P = 0.06). The mean of values of the area under the manometric tracing curve showed differences between moments Valsalva and apnea (P = 0.0008), either at the proximal portion or at the distal portion of the anal orifice. CONCLUSION: The effort of evacuation associated with postexpiratory apnea, when compared with the effort associated with the Valsalva maneuver, provides lower elevation of anal pressure at rest by the parameter area under the curve.
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It was proposed to evaluate the hydroponic lettuce production, variety Vera, on inclined benches with channels of 100 mm, and Nutrient Film Technique, as answer to carbon dioxide application and evaporative cooling. There were five cycles of cultivation from March, 20th to April, 17th (C1); from May, 25th to June, 29th (C2); from July, 13th to August, 20th (C3); from August, 27th to October, 10th (C4); from December, 12th to January, 10th (C5). In three greenhouses were tested the following systems: (A1) without evaporative cooling air CO2 aerial injection, (A2) with CO2 aerial injection and without evaporative cooling and (A3) with CO2 aerial injection and pad-fan evaporative cooling system. The fresh and dry mass of leaves in grams, number of leaves and leaf area in square millimeter were evaluated. The completely randomized statistical analysis was used. The cycle C1 were used 48 replications, for cycles C2, C3 and C5 were used 64 replications and C5 were used 24 replications. The results showed that greenhouse with evaporative cooling system and CO2 allow better development and greater lettuce yield. It was possible to conclude that the aerial injection of CO2, in the absence of evaporative cooling system, did not lead increasing the lettuce productivity to most cycles. Bigger lettuce leaf areas were found in periods with higher temperatures.
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cDNA arrays are a powerful tool for discovering gene expression patterns. Nylon arrays have the advantage that they can be re-used several times. A key issue in high throughput gene expression analysis is sensitivity. In the case of nylon arrays, signal detection can be affected by the plastic bags used to keep membranes humid. In this study, we evaluated the effect of five types of plastics on the radioactive transmittance, number of genes with a signal above the background, and data variability. A polyethylene plastic bag 69 μm thick had a strong shielding effect that blocked 68.7% of the radioactive signal. The shielding effect on transmittance decreased the number of detected genes and increased the data variability. Other plastics which were thinner gave better results. Although plastics made from polyvinylidene chloride, polyvinyl chloride (both 13 μm thick) and polyethylene (29 and 7 μm thick) showed different levels of transmittance, they all gave similarly good performances. Polyvinylidene chloride and polyethylene 29 mm thick were the plastics of choice because of their easy handling. For other types of plastics, it is advisable to run a simple check on their performance in order to obtain the maximum information from nylon cDNA arrays.
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We present and discuss in this article some features of a research program whose central object of investigation is the way in which the recent fields of history, philosophy, and sociology of mathematical education could take part in a critical and qualified manner in the initial and continuing training of teachers in this area. For that, we endorse the viewpoint that the courses for mathematics teacher education should be based on a conception of specificity through which a new pedagogical project could be established. In such project those new fields of investigation would participate, in an organic and clarifying way, in the constitution of multidimensional problematizations of school practices, in which mathematics would be involved, and that would be guided by academic investigations about the issues that currently challenge teachers in the critical work of incorporation, resignification, production, and transmission of mathematical culture in the context of the school institution.
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Universidade Estadual de Campinas. Faculdade de Educação Física
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This study aimed to assess the response of apical and periapical tissues of dogs' teeth after root canal filling with different materials. Forty roots from dogs' premolars were prepared biomechanically and assigned to 4 groups filled with: Group I: commercial calcium hydroxide and polyethylene glycol-based paste (Calen®) thickened with zinc oxide; Group II: paste composed of iodoform, Rifocort® and camphorated paramonochlorophenol; Group III: zinc oxide-eugenol cement; Group IV: sterile saline. After 30 days, the samples were subjected to histological processing. The histopathological findings revealed that in Groups I and IV the apical and periapical regions exhibited normal appearance, with large number of fibers and cells and no resorption of mineralized tissues. In Group II, mild inflammatory infiltrate and mild edema were observed, with discrete fibrogenesis and bone resorption. Group III showed altered periapical region and thickened periodontal ligament with presence of inflammatory cells and edema. It may be concluded that the Calen paste thickened with zinc oxide yielded the best tissue response, being the most indicated material for root canal filling of primary teeth with pulp vitality.