952 resultados para 037


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Servicios registrales

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At present, a fraction of 0.1 - 0.2% of the patients undergoing surgery become aware during the process. The situation is referred to as anesthesia awareness and is obviously very traumatic for the person experiencing it. The reason for its occurrence is mostly an insufficient dosage of the narcotic Propofol combined with the incapability of the technology monitoring the depth of the patient’s anesthetic state to notice the patient becoming aware. A solution can be a highly sensitive and selective real time monitoring device for Propofol based on optical absorption spectroscopy. Its working principle has been postulated by Prof. Dr. habil. H. Hillmer and formulated in DE10 2004 037 519 B4, filed on Aug 30th, 2004. It consists of the exploitation of Intra Cavity Absorption effects in a two mode laser system. In this Dissertation, a two mode external cavity semiconductor laser, which has been developed previously to this work is enhanced and optimized to a functional sensor. Enhancements include the implementation of variable couplers into the system and the implementation of a collimator arrangement into which samples can be introduced. A sample holder and cells are developed and characterized with a focus on compatibility with the measurement approach. Further optimization concerns the overall performance of the system: scattering sources are reduced by re-splicing all fiber-to-fiber connections, parasitic cavities are eliminated by suppressing the Fresnel reflexes of all one fiber ends by means of optical isolators and wavelength stability of the system is improved by the implementation of thermal insulation to the Fiber Bragg Gratings (FBG). The final laser sensor is characterized in detail thermally and optically. Two separate modes are obtained at 1542.0 and 1542.5 nm, tunable in a range of 1nm each. Mode Full Width at Half Maximum (FWHM) is 0.06nm and Signal to Noise Ratio (SNR) is as high as 55 dB. Independent of tuning the two modes of the system can always be equalized in intensity, which is important as the delicacy of the intensity equilibrium is one of the main sensitivity enhancing effects formulated in DE10 2004 037 519 B4. For the proof of concept (POC) measurements the target substance Propofol is diluted in the solvents Acetone and DiChloroMethane (DCM), which have been investigated for compatibility with Propofol beforehand. Eight measurement series (two solvents, two cell lengths and two different mode spacings) are taken, which draw a uniform picture: mode intensity ratio responds linearly to an increase of Propofol in all cases. The slope of the linear response indicates the sensitivity of the system. The eight series are split up into two groups: measurements taken in long cells and measurements taken in short cells.

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Con motivo del desarrollo del Plan de Extensión de la Enseñanza Media por toda la geografía nacional, se aportan datos acerca de la creación de 19 nuevos centros, de la inauguración de otros Institutos y Secciones Delegadas, y acerca de las obras de construcción de nuevos edificios y mejora o modernización de los existentes que dependen de la Dirección General de Enseñanza Media.

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O Manual de Operação, Uso e Manutenção das Edificações ou, simplificadamente, Manual das Edificações, constitui uma garantia legal para os usuários das edificações. A entrega deste documento pelas empresas e consultas pelos usuários ao Manual contribuem para a redução dos custos da fase de uso da Edificação. Informá-los sobre operação, uso e manutenção através de Manuais confiáveis do ponto de vista técnico, bem como acessíveis e amigáveis para sua compreensão, se faz necessário. A publicação da NBR 14.037/1998, o Código de Defesa do Consumidor e a implantação de Sistema de Gestão da Qualidade têm sido um estímulo às empresas de construção para a elaboração desses Manuais. Neste contexto, o presente trabalho tem como objetivo contribuir para melhoria do fluxo de informação no processo produtivo da construção civil, identificando lacunas a serem supridas na elaboração dos Manuais das Edificações à luz das diretrizes estabelecidas nesta NBR. Para cumprir com o objetivo proposto, inicialmente foi realizada pesquisa exploratória com empresas do subsetor de edificações dos Estado de Alagoas e Rio Grande do Sul através de questionário. Cada questionário foi acompanhado por solicitação de remessa de Manuais das Edificações que a empresa havia desenvolvido para uma avaliação de seu conteúdo, que foi realizada através de lista de verificação. Na segunda fase da pesquisa, também utilizando questionários, foram solicitadas informações sobre experiências e expectativas dos usuários das edificações destes dois Estados sobre esses Manuais das Edificações A existência de dificuldades para elaboração dos Manuais foi evidenciada pelo baixo conhecimento pelos profissionais dos aspectos relacionados a estes documentos, pela avaliação obtida do conteúdo dos mesmos e pelo interesse das empresas em um texto básico que lhe facilite a sua elaboração. Por outro lado, percebe-se que os usuários não têm a cultura de ler os Manuais, acionando as empresas para prestar assistência técnica, mesmo que a solução da solicitação encontra-se, em sua maioria, descritas nos Manuais. De forma geral, pode-se concluir que ainda há muito a ser trabalhado com empresas e usuários para que as informações sejam adequadamente disponibilizadas e utilizadas.

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Objective: To evaluate the prevalence and nutritional and social determinants of overweight in a population of schoolchildren in Southern Brazil. Methods: Cross-sectional descriptive study of 5,037 children of both genders, between 6 and 10.9 years of age, from public and private schools of Maringa, Parana, Brazil. Evaluation of factors associated with excess weight (overweight and obesity) included gender, age, school type, socioeconomic level, education of the head of the family, eating habits, and means of commuting to school. After univariate analysis (Fisher's exact test), we adjusted a logistic regression model and used Wald's test for decision-making (p < 0.05). Results: The mean age was 8.7 +/- 1.3 years, with 52.8% females; 79.1% of the students attended public school and 54.6% had families of socioeconomic class A or B. Regarding nutritional status, 24% of children were overweight (7% obesity, 17% overweight). Being male, attending a private school, and having a head of the family with over four years of education were significantly associated with excess weight. In relation to food, inadequate intake of,carbohydrates was associated with a 48% greater chance of overweight/obesity (p < 0.001; OR: 1.48; 95% CI: 1.25-1.76), Conclusion: The prevalence of overweight found in this study is approximate to that reported in national studies. Its association with gender and inadequate food intake indicates that these factors should be considered in initiatives aimed at preventive measures in childhood.