977 resultados para Selection Strategy
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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
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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
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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
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics
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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
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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
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The proliferation of Aedes aegypti, a species of mosquito that is the vector of the dengue pathogen, is being augmented by the population's lack of care in allowing the formation of larval habitats. One form of controlling dengue is the distribution of information on the mosquito to improve awareness and to provide the means necessary for the elimination of its reproductive habitats. To evaluate a teaching method concerning the vector and dengue, students from the 5th and 6th years of primary education were compared before and after didactic intervention with a group of control students. The students who received intervention were more successful in identifying the stages of the cycle, biological and morphological characteristics of the adult insect and the importance of the mosquito in health issues. The didactic intervention was successful in developing knowledge leading to increased awareness of the importance of preventative measures that should be taken against the vector and the disease.
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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
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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
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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
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RESUMO: O Líbano é um pequeno país na costa leste do Mar Mediterrâneo, com uma população de aproximadamente 4.350.000 pessoas, incluindo 1,5 milhões de refugiados, 400 mil dos quais são palestinos atendidos pela UNRWA (Agência das Nações Unidas de Socorro aos Refugiados da Palestina) (UNHCR, 2013; OMS, 2010a). Desde 2012, um excedente de 1.000.000 refugiados sírios cruzaram a fronteira com o Líbano, representando um aumento populacional de aproximadamente 25%. Além disso, entre 1975 e 1990, a violenta guerra civil pela qual o Líbano passou, destruiu grande parte da infra-estrutura do país, incluindo os serviços de saúde. O sector da saúde, mais especificamente os serviços de saúde mental, é majoritariamente privado. Serviços especializados em Saúde Mental estão disponíveis em três hospitais psiquiátricos privados, e em 4 unidades psiquiátricas de hospitais gerais, que estão localizados centralmente em torno da capital, Beirute. O Líbano é um dos dois únicos países da região que não tem uma Política de Saúde Mental e um dos seis países que não têm uma Legislação em Saúde Mental. Nos últimos anos, a Saúde Mental está sendo colocada no topo da agenda nacional, apesar das contínuas questões políticas e de segurança. Baseando-se nas informações acima, um projecto de estratégia em Saúde Mental, conduzido pelo Ministério da Saúde e apoiado pela OMS, foi escrito para servir como um guia para trabalhar em diferentes aspectos relacionados tanto em saúde mental quanto em organização dos serviços, revisão de legislação, financiamento e proteção dos direitos humanos básicos dos usuários do serviço. Esta tese descreve o processo pelo qual o projecto de estratégia nacional de Saúde Mental foi desenvolvido, seus principais componentes, os próximos passos a serem tomados para a sua implementação, os desafios e as oportunidades para implementá-lo e propõe alguns passos iniciais a serem tomados em primeiro lugar.----------ABSTRACT: Lebanon is a small country on the eastern shore of the Mediterranean Sea with a population of approximately 4,350,000 including 1,500,000 refugees, 400,000 of whom are Palestinians served by UNRWA (the United Nations Relief and Works Agency for Palestine Refugees) (UNHCR, 2013; WHO, 2010a). Since 2012 an excess of 1,000,000 Syrian refugees have crossed the border into Lebanon accounting for approximately 25% increase in the population. In addition, from 1975 to 1990 Lebanon underwent a violent civil war that had also destroyed much of the country infrastructure including health services. The health sector, more so the mental health services, is mostly private. Specialized Mental Health services are available at three private mental hospitals, and 4 psychiatric units within general hospitals, which are located centrally around the capital, Beirut. Lebanon is one of only two countries of the region that does not have a Mental Health policy and one out of the six countries that does not have a Mental Health legislation. In recent years, Mental Health is getting placed higher on the national agenda despite the ever continuing political and security issues. Based on the above, A Mental Health strategy draft, lead by the Ministry of Health and supported by WHO, was written to serve as a guide to work on different aspects related to Mental Health from service organization, to the revision of legislation, financing and the protection of the basic human rights of service users. This thesis describes the process through which the national Mental Health draft strategy was developed, its main components, the next steps to be taken for its implementation, the challenges and the opportunities to implementing it and proposes a few initial steps to be taken first.
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Does return migration affect entrepreneurship? This question has important implications for the debate on the economic development effects of migration for origin countries. The existing literature has, however, not addressed how the estimation of the impact of return migration on entrepreneurship is affected by double unobservable migrant self-selection, both at the initial outward migration and at the final inward return migration stages. This paper uses a representative household survey conducted in Mozambique in order to address this research question. We exploit variation provided by displacement caused by civil war in Mozambique, as well as social unrest and other shocks in migrant destination countries. The results lend support to negative unobservable self-selection at both and each of the initial and return stages of migration, which results in an under-estimation of the effects of return migration on entrepreneurial outcomes when using a ‘naïve’ estimator not controlling for self-selection. Indeed, ‘naïve’ estimates point to a 13 pp increase in the probability of owning a business when there is a return migrant in the household relative to non-migrants only, whereas excluding the double effect of unobservable self-selection, this effect becomes significantly larger - between 24 pp and 29 pp, depending on the method of estimation and source of variation used.
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Polyhydroxyalkanoates (PHAs) are biosynthetic polyesters, biodegradable and biocompatible making them of great interest for industrial purposes. The use of low value substrates with mixed microbial communities (MMC) is a strategy currently used to decrease the elevated PHA production costs. PHA production process requires an important step for selection and enrichment of PHA-storing microorganisms which is usually carried out in a Sequencing Batch Reactor (SBR). The aim of this study was to optimize the PHA accumulating culture selection stage using a 2-stage Continuous Stirrer Tank Reactor (CSTR) system. The system was composed by two separate feast and famine bioreactors operated continuously, mimicking the feast and famine phases in a SBR system. Acetate was used as carbon source and biomass seed was highly enriched in Plasticicumulans acidivorans obtained from activated sludge. The system was operated under two different sets of conditions (setup 1 and 2), maintaining a system total retention time of 12 hours and an OLR of 2.25 Cmmol/L.h-1. An average PHB-content of 3.3 % wt was obtained in setup 1 and 4.8% wt in setup 2. Several other experiments were performed in order to better understand the continuous system behaviour, using biomass from the continuous system. With the fed-batch experiment a maximum of 8.1% PHB was stored and the maximum substrate uptake and specific growth rates obtained in the growth experiment (1.15 Cmol Cmol-1.h-1 and 0.53 Cmol Cmol-1.h-1) were close to the ones from continuous system (1.12 Cmol Cmol-1.h-1 and 0.59 Cmol Cmol-1.h-1). The microbial community was characterized trough microscopic visualization, Denaturing Gradient Gel Electrophoresis (DGGE) analysis and Fluorescent in situ hybridization (FISH). The last studied performed mimicked the continuous system by building up a SBR system with all the same operational conditions while adding an extra acetate dosage during the 12 h cycle, simulating the substrate passing from the feast to the famine reactors under continuous operation. It was shown that possibly the continuous system was not able to efficiently select for PHB storing organisms under the operational conditions imposed, although the selected culture was capable of consuming the substrate and grow fast. This main conclusion might have resulted from two major factors affecting the system performance: the ammonium concentration in the Feast reactor and the amount of substrate leaching from the Feast to the Famine reactor.
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Logoplaste is a specialist in operating in-house industrial sites for manufacturing rigid plastic packaging containers. In developing countries, especially in Africa, the low income of consumers does not allow a widespread adoption of products typically sold in rigid plastic containers. In these countries the flexible packages are usually adopted as they allow for better ratios of cost/litter of product, particularly in smaller packages. Should Logoplaste offer this type of technology in order to expand into developing countries?
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This paper designs a pairs trading model with the intent to identify existing profitable market opportunities to invest, i.e. traditionally strong correlated stocks that have diverged from its historical norm. It comprises a broad literature review on this strategy whose relevant findings (strategy improvements) are contemplated in the model. The authors combine the statistical results of the model with a backtesting analysis in order to provide guidance on the best investment opportunities.