1000 resultados para Protección individual


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Comunicação apresentada no 1º Encontro Internacional Trabalho, Organizações e Profissões na Faculdade de Letras da Universidade do Porto, de 7 a 8 de Julho de 2011.

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Biometric recognition is emerging has an alternative solution for applications where the privacy of the information is crucial. This paper presents an embedded biometric recognition system based on the Electrocardiographic signals (ECG) for individual identification and authentication. The proposed system implements a real-time state-of-the-art recognition algorithm, which extracts information from the frequency domain. The system is based on a ARM Cortex 4. Preliminary results show that embedded platforms are a promising path for the implementation of ECG-based applications in real-world scenario.

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Bancroftian filariasis is spreading in towns of endemic areas as in Recife, northeastern Brazil, where it is a major public health problem. This paper deals with the prevalence of microfilaraemia and filarial disease in two urban areas of Recife, studying their association with individual characteristics and variables related to the exposure to the vectors. The parasitologic survey was performed through a "door-to-door" census and microfilaraemia was examined by the thick-drop technique using 45µl of peripheral blood collected between 20:00 and 24:00 o' clock. 2,863 individuals aged between 5 and 65 years were interviewed and submitted to clinical examination. Males aged between 15 and 44 years old presented the greatest risk of being microfilaraemic. Microfilaraemia was also significantly associated with no use of bednet to sleep. The risk of being microfilaraemic was greater among those who had lived in the studied areas for more than 5 years. The overall disease prevalence was 6.3%. Males presented the greatest risk of developing acute disease. The risk of developing chronic manifestations was also greater among males and increased with age. We found no association between time of residence, bednet use, microfilaraemia and acute and chronic disease. We may conclude that in endemic areas there are subgroups of individuals who has a higher risk of being microfilariae carriers due to different behaviours in relation to vector contact.

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RESUMO O controlo vectorial representa uma parte importante da estratégia global actual para a prevenção das principais doenças transmitidas por insectos, como a malária, a febre de dengue ou do West Nile. Uma das vertentes do controlo vectorial é aquela que se associa à protecção individual dos hospedeiros contra a picada de insectos. É no âmbito desta problemática que surge o estudo aqui apresentado. Este teve como um dos objectivos testar em laboratório a eficácia de três compostos diferentes (permetrina, DEET e citronela) contra a picada de mosquitos Anopheles stephensi Liston, 1901, quando aplicados a tecidos de algodão. Com base neste estudo laboratorial, seleccionaram-se os tecidos mais eficientes que foram testados no terreno, na área da Comporta, em ensaios simuladores de uma situação real. Os resultados foram complementados com alguns ensaios preliminares efectuados em laboratório com a espécie Culex theileri Teobald, 1903. Nos primeiros ensaios laboratoriais, tecidos impregnados com permetrina mostraram induzir uma repelência mais eficaz do que tecidos com DEET e citronela micro-encapsulados. O efeito de repelência dos tecidos com permetrina manteve-se, mesmo quando estes foram sujeitos a vários ciclos de lavagem. No entanto, os ensaios de repelência/protecção efectuados no campo demonstraram que a eficácia do tecido impregnado com permetrina é afectada pelo número de lavagens. Testes laboratoriais realizados com Cx. theileri, a espécie mais abundante da área da Comporta, apontam para que a discrepância observada entre os resultados das experiências laboratoriais e de campo possa estar associada a um comportamento diferencial das espécies envolvidas nos dois tipos de ensaio. Em conclusão, embora o uso de vestuário tratado com microcápsulas de repelentes seja um método promissor na protecção contra as picadas de insectos, este terá de beneficiar de algum investimento futuro para que possa vir a ser considerado uma estratégia válida no controlo vectorial a larga escala. Há que melhorar o modo de incorporação e apresentação do composto activo nos tecidos de modo a obter-se um efeito repelente mais efectivo e prolongado e a procura de repelentes naturais, indutores de menor toxicidade e mais repelência, deve ser continuada.

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Starting from theoretical perspectives on globalisation, the following article analyses how current working conditions are affected by globalisation processes. For this purpose, recent developments in the German clothing sector are traced back to the power of economic globalisation processes. Characterising the German clothing sector as pioneer in economic globalisation, we use empirical findings to illustrate how current processes of globalisation influence the work place: At organisational level, corporate strategies aim at rationalisation, standardisation and flexibilisation of work in order to response to the economic pressure of global markets. At individual level these strategies, in turn, speed up working processes and intensify working processes for the employees. Although these developments form strong trends, we conclude that the local embeddedness of companies is still of high importance with regard to organisational and individual consequences of globalisation.

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The purpose of this study is to investigate the association between the satisfaction with HRM practices in an organization and the workers' perceived performance. We are interested in learning if indeed workers that are more satisfied with the organization’s practices will also perceive themselves as more hardworking than others, thus confirming the happy-productive worker hypothesis, from an individual perception standpoint. Data originates from a large Portuguese hospital, with a sample of 952 clinical and nonclinical hospital workers. Data was originally explored using SPSS software and later tested in AMOS software where a multiple regression model was constructed and tested. Results indicate that overall satisfaction with HRM practices are related with the workers’ perceived performance; most of the HRM satisfaction subscales also relate, except for pay and performance appraisal, that do not seem to be good predictors of the workers perceived performance. The present study is based on a single large public hospital, and thus, these findings need to be further tested in other settings. This study offers some clues regarding the areas of HRM that seem to be more related with the workers’ perceived performance, and hence provide an interesting framework for managers dealing with healthcare teams. This study contributes to the happy-productive worker hypothesis research, by including seldom used variables in the equation and taking a different perspective. Results provide new clues for investigation and practice regarding the areas of action in HRM that seem to be more prone to elicit perceived effort from the workers.

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RESUMO - El autor aborda algunos aspectos relativos a la Salud y Seguridad del Trabajo (SST) en Portugal llamando la atención para, esencialmente, intentar sostener la tesis de que, desde mediados de la década de los 90, se observaron importantes avances en la mejoría de las condiciones del trabajo en la perspectiva de la SST, aunque se mantuvieron algunos problemas en la práctica concreta de las normativas legales. Incluso con estas mejoras, las tasas de frecuencia de accidentes de trabajo y de enfermedades profesionales en Portugal todavía se mantienen muy elevadas necesitando, por tanto, estrategias más “agresivas” para concienciar la sociedad portuguesa en torno a las políticas públicas de SST efectivamente promotoras de prevención de riesgos profesionales y de la promoción de la salud de quien trabaja. Es por tanto indispensable que la protección de la salud y de la seguridad de los trabajadores en los puestos de trabajo sea encarada como un conjunto de actividades de indiscutible utilidad para todos los representantes del mundo del trabajo e que la agenda política pase a valorizar, aún más, la promoción de espacios de trabajo saludables y seguros, con la consecuente valorización de las variables individuales en la estrategia nacional de salud y seguridad.--------------------------ABSTRACT – In the present work, the author analyzes several aspects of Occupational Health and Safety (OHS) in Portugal. He provides evidence sustaining the assumption of an important progress, since the mid-nineties, in the improvement of the working conditions from an OHS perspective. Nevertheless, several problems still remain in the practical application of legal regulations. In addition, despite of these improvements, the frequency rates of working accidents and occupational diseases remain very high. Hence, more “aggressive” strategies are required to increase the awareness of the Portuguese society relative to the OHS public policies, whose effectiveness has been demonstrated either in terms of occupational risks prevention and workers health promotion. The protection of workers’ health and safety at the workplace must then be assumed as an activity of indisputable utility by all stakeholders. The political agenda must thus promote even more the promotion of healthy and safe workplaces. As a consequence, there would be also a higher development of individual aspects, and not only environmental data, in the national strategy of occ

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Además del acogimiento familiar, el sistema de protección infantil incluye, en general, otras dos medidas de colocación, el acogimiento en instituciones y la adopción, que retiran a los menores de su ambiente y les colocan en otro medio de vida, proporcionándoles una casa y un contexto de vida alternativo. Este artículo analiza los detalles de cada una de ellas, compara los criterios de su selección y las finalidades de aplicación, describe su reciente evolución e se interroga por algunos de los desafíos que el presente y el futuro les señala.

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DNA amplification by the polymerase chain reaction (PCR) was applied in the investigation of the presence of Leishmania (Kinetoplastida: Trypanosomatidae) parasites in single phlebotomine sandflies. Three phlebotomine/parasite pairs were used: Lutzomyia longipalpis/Leishmania chagasi, Lutzomyia migonei/Leishmania amazonensis and Lutzomyia migonei/Leishmania braziliensis, all of them incriminated in the transmission of visceral or cutaneous leishmaniasis. DNA extraction was performed with whole insects, with no need of previous digestive tract dissection or pooling specimens. The presence of either mouse blood in the digestive tract of the sandflies or the digestive tract itself did not interfere in the PCR. Infection by as few as 10 Leishmania sp. per individual were sufficient for DNA amplification with genus-specific primers. Using primers for L. braziliensis and L. mexicana complexes, respectively, it was possible to discriminate between L. braziliensis and L. amazonensis in experimentally infected vectors (L. migonei).

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Na ausência de uma retaguarda familiar capaz de se constituir como uma rede de segurança e apoio ao desenvolvimento integral de adolescentes com medida de promoção e proteção, o Apartamento de Autonomização oferece um espaço no qual os jovens podem treinar competências que lhes assegurem um futuro autónomo e minimizem os riscos de exclusão social. Esta resposta social propõe-se preparar adolescentes, em transição para a adultez juvenil, para a conquista da responsabilidade de se autoprotegerem, de cuidarem de si próprios e de assumirem a sua identidade perante os outros. Todavia, um projeto de Autonomização de Vida revela-se um desafio, não apenas para os jovens, como também para as famílias e para os profissionais que com eles trabalham. Foram, precisamente, as dificuldades inerentes à Autonomização de Vida em contexto institucional que motivaram o desenvolvimento de um projeto em educação e intervenção social promotor da eficiência dessa resposta social em termos de promoção da autonomia e da transição bem-sucedida para a vida adulta. O presente relatório constitui, assim, um olhar retrospetivo sobre o Projeto “Tornar-se Adulto na Casa 5”, o qual, através da metodologia de Investigação-Ação Participativa, visou alcançar a finalidade proposta pelos participantes: “Promover uma autonomia plena dos jovens da Casa 5, com vista à transição bem-sucedida para a vida adulta após o término da medida de promoção e proteção”. Ainda que os resultados obtidos tenham sido moderadamente satisfatórios, o Projeto terá contribuído para o desenvolvimento de uma consciencialização mais crítica acerca das oportunidades e dos constrangimentos ao desenvolvimento da Autonomia, favorecendo, desejavelmente, a transição para vida adulta após a desinstitucionalização.

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Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de Informação

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I construct a model in which money and bond holdings are consistent with individual decisions and aggregate variables such as production and interest rates. The agents are infinitely-lived, have constant-elasticity preferences, and receive a fraction of their income in money. Each agent solves a Baumol-Tobin money management problem. Markets are segmented because financial frictions make agents trade bonds for money at different times. Trading frequency, consumption, government decisions and prices are mutually consistent. An increase in inflation, for example, implies higher trading frequency, more bonds sold to account for seigniorage, and lower real balances.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics