975 resultados para context aware
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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: Esta dissertação pretende apresentar uma proposta para um programa de Controlo de Qualidade interno das hormonas tiroideias, segundo as boas práticas da qualidade. Para que se comprove o rigor e fiabilidade dos seus resultados analíticos, condição indispensável para que estes possam servir de base às mais diversas tomadas de decisão, toda a filosofia que envolve a qualidade assume um papel preponderante. Neste contexto a elaboração de um programa de controlo de qualidade adequado é muito importante e imprescindível. A realização do controlo de qualidade permite monitorizar o desempenho de todos os materiais, equipamentos, instrumentos e métodos analíticos bem como criar sinais de alerta para prevenir a emissão de resultados não-conformes e indicar a necessidade de ações corretivas. Permite também indicar a necessidade de melhorias em processos e em atividades ligadas aos operadores e consciencializar o pessoal de que o controlo da qualidade é um dever para com o cliente e tem a função de gerar confiança nos resultados obtidos. O controlo de qualidade interno abrange todos os procedimentos assumidos por um laboratório para avaliação contínua do seu trabalho. A sua finalidade é assegurar a consistência dos resultados diários e a sua conformidade com critérios definidos, avaliando a precisão dos ensaios e dando indicação do momento para se promoverem ações corretivas quando surge uma não conformidade. Segundo as melhores práticas da qualidade, serão calculados os valores do controlo de qualidade interno para as hormonas tiroideias, os seus limites e critérios (regras) de aceitabilidade, com base na relação entre o desempenho analítico e o Erro Máximo Admissível. Pretende-se assim, otimizar o desempenho do Controlo de Qualidade Interno, aperfeiçoando a capacidade de identificação do erro.-------- ABSTRACT: This paper intends to submit a proposal for a thyroid hormones internal quality Control program, according to the best quality practices. The whole philosophy involving quality plays a central role in order to prove the accuracy and reliability of the analytical results, a basic prerequisite for decision making. In this context the elaboration of an appropriate quality control program is essential and very important. Quality control allows the motorization of the performance of all materials, equipment, instruments and analytical methods, as well as the creation of warning signals indicating the need for corrective actions, to prevent the release of non-compliant results. It also indicates the need for improvements in the processes and operating activities as well as making the staff aware that quality control is a duty to the client and promotes confidence in the results. The internal quality control covers all procedures undertaken by a laboratory for a continuous evaluation of its performance. Its purpose is to ensure the consistency of the daily results and compliance with defined criteria, assessing the accuracy of the tests and indicating the moment to promote corrective actions when nonconformity appears. According to the best quality practices, the values of the internal quality control for the thyroid hormones, their limits and criteria (rules) of acceptability will be calculated, based on the relationship between analytical performance and the maximum allowable error. Thus, the aim is to optimize the performance of the Internal Quality Control, improving the ability for error detection and identification.
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Dissertação para obtenção do Grau de Mestre em Engenharia Informática
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Thesis submitted in fulfilment of the requirements for the Degree of Master of Science in Computer Science
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RESUMO: Introdução: A hipótese colocada nesta tese é a de que poderia haver um número bastante mais elevado de ensaios clínicos na medicina familiar portuguesa se os obstáculos fossem removidos e as oportunidades exploradas de modo adequado. Contexto: Em Portugal existe uma nova geração de Médicos de Família que está a assumir postos de trabalho um pouco por todo o país e que é aceite como sendo a mais bem preparada geração de sempre. Métodos: Busca na MEDLINE. Leitura de artigos na única publicação científica dedicada à Medicina Geral e Familiar – RPMGF. Consulta em livros portugueses de política da saúde e acerca do Plano Nacional de Saúde. O INFARMED foi contactado e relatórios seus sobre ensaios clínicos foram analisados. Os Médicos de Família portugueses foram contactados e convidados a responder a questionários. Além disso, quinze personalidades da Medicina Portuguesa foram chamadas a sugerir soluções. Resultados: De acordo com dados do INFARMED, de 2006 a 2011 houve apenas quatro centros de saúde envolvidos em ensaios clínicos. Em Portugal: Existe um número pouco significativo de ensaios académicos; Praticamente não há infraestruturas de suporte ou treino; Os registos clínicos eletrónicos são usados de forma ineficiente; a investigação é fracamente ligada às carreiras médicas; há isolamento interno e externo; a já complexa regulamentação da União Europeia é complicada ainda mais; há um subfinanciamento da Investigação Clínica. Os Médicos de Família portugueses estão disponíveis para participar ativamente numa mudança. Discussão: Com os presentes resultados o diagnóstico para a presente situação é claramente negativo. Felizmente existem muito boas oportunidades para melhorar. Conclusão/Recomendações: Tempo, dinheiro e apoio têm de ser fornecidos aos Médicos de Família portugueses. É nesse sentido que são fornecidas vinte recomendações para obter uma verdadeira mudança no panorama dos Ensaios Clínicos na Medicina Familiar portuguesa.-------------ABSTRACT: Introduction: The hypothesis of this thesis is that there could be a much greater number of Clinical Trials in Portuguese Family Medicine if obstacles were removed and opportunities explored properly. Background: In Portugal there is a new generation of Family Doctors that is assuming permanent positions all over the country and is accepted to be the most well prepared generation ever. Methods: Search on MEDLINE. Relevant articles were also identified in the only jornal dedicated to Portuguese Family Medicine, RPMGF. A search was made on Portuguese health policy textbooks and national health plan policy. INFARMED was also contacted and their reports about Clinical Trials were analysed. Portuguese Family Doctors themselves were contacted and invited to answer questionnaires. Besides that, fifteen key opinion leaders related to Portuguese Medicine were approached for solutions. Results: According to INFARMED data, from 2006 to 2011 there were only four health centres involved in clinical trials. In Portugal there is: A negligible number of academic trials; almost no support infrastructures or training; inefficiently used electronic health records; a research weakly linked to medical careers; an uninformed isolation internally and externally; an already complex European Union regulation that is compounded even more; Scarce funding for clinical research. Portuguese Family Doctors are keen to actively participate in a change. Discussion: With the present results the diagnosis for the current situation is clearly negative. Fortunately there are very good opportunities to improve. Conclusion/Recommendations: Time, money and support must be given to Portuguese Family Doctors. In this context, twenty recommendations are provided intending to promote a true change in Portuguese Family Medicine Clinical Trials panorama.
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Nowadays, reducing energy consumption is one of the highest priorities and biggest challenges faced worldwide and in particular in the industrial sector. Given the increasing trend of consumption and the current economical crisis, identifying cost reductions on the most energy-intensive sectors has become one of the main concerns among companies and researchers. Particularly in industrial environments, energy consumption is affected by several factors, namely production factors(e.g. equipments), human (e.g. operators experience), environmental (e.g. temperature), among others, which influence the way of how energy is used across the plant. Therefore, several approaches for identifying consumption causes have been suggested and discussed. However, the existing methods only provide guidelines for energy consumption and have shown difficulties in explaining certain energy consumption patterns due to the lack of structure to incorporate context influence, hence are not able to track down the causes of consumption to a process level, where optimization measures can actually take place. This dissertation proposes a new approach to tackle this issue, by on-line estimation of context-based energy consumption models, which are able to map operating context to consumption patterns. Context identification is performed by regression tree algorithms. Energy consumption estimation is achieved by means of a multi-model architecture using multiple RLS algorithms, locally estimated for each operating context. Lastly, the proposed approach is applied to a real cement plant grinding circuit. Experimental results prove the viability of the overall system, regarding both automatic context identification and energy consumption estimation.
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The second half of the XX century was marked by a great increase in the number of people living in cities. Urban agglomerations became poles of attraction for migration flows and these phenomena, coupled with growing car-ownership rates, resulted in the fact that modern transport systems are characterized by large number of users and traffic modes. The necessity to organize these complex systems and to provide space for different traffic modes changed the way cities look. Urban areas had to cope with traffic flows, and as a result nowadays typical street pattern consists of a road for motorized vehicles, a cycle lane (in some cases), pavement for pedestrians, parking and a range of crucial signage to facilitate navigation and make mobility more secure. However, this type of street organization may not be desirable in certain areas, more specifically, in the city centers. Downtown areas have always been places where economic, leisure, social and other types of facilities are concentrated, not surprisingly, they often attract large number of people and this frequently results in traffic jams, air and noise pollution, thus creating unpleasant environment. Besides, excessive traffic signage in central locations can harm the image and perception of a place, this relates in particular to historical centers with architectural heritage.
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As the financial crisis hit the Portuguese banks, the profitability of the whole sector squeezed to historical minimums. Reinventing the banking business model in the post-crisis context is an overriding issue to achieve sustainable profits and a low cost-to-income ratio. We propose banks to adopt a true multichannel approach, proceeding to a branch network reformatting and a relocation of services to online channels; adopt a true customer-centric approach and reduce the product and services portfolio complexity; finally, industrialize operations and rationalize the structure. With these measures in place, Portuguese banks will become leaner and more efficient, aspiring to a cost-to-income ratio below 45%.
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The 21st century bodes an interesting time for companies and individuals alike with an increased focus on using creativity as a way to stimulate innovation to create competitive advantage. Several studies have looked at how creativity is stimulated within a corporate environment or how creativity is stimulated by people in a specific place. This study aimed to look at how the contextual environment fosters creativity in individuals and groups. With the increase in popularity of African and world music In Europe over the last ten years it was decided that the context of Lisbon, Portugal be used with a specific focus on African musicians living there and working in the Lisbon music scene. It became apparent themes of Creative crossovers, Geographical Location, a dynamic environment, Entrepreneurial encouragement and the presence of open-minded and flexible individual were involved in Lisbon’s ability to foster and empower creative individuals.
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This work tests different delta hedging strategies for two products issued by Banco de Investimento Global in 2012. The work studies the behaviour of the delta and gamma of autocallables and their impact on the results when delta hedging with different rebalancing periods. Given its discontinuous payoff and path dependency, it is suggested the hedging portfolio is rebalanced on a daily basis to better follow market changes. Moreover, a mixed strategy is analysed where time to maturity is used as a criterion to change the rebalancing frequency.
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This work project intends to evaluate the effectiveness of the Portuguese Government’s strategy to promote the orderly deleveraging of the corporate sector in the context of the current economic crisis. The recommendations of the Troika and the commitments assumed under the Memorandum of Understanding signed by the Government in 2011 required the creation of formal processes to avoid disorderly deleveraging. Conclusions and recommendations were drawn based on past experiences of large-scale corporate restructuring strategies in other countries and on the analysis of financial and statistical data on companies applying for “Programa Especial de Revitalização”.
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This work project has the objective of exploring the importance of making good decisions on supplier selection, so that the purchasing department can contribute to the success of a company. For that it is presented a short bibliography review of the latest insights that were found relevant, on the subjects of purchasing, technology, outsourcing, supplier selection and decision-making techniques. For a better understating on how to deal with a decision-making situation, a case study is also presented: Digital Printing Solutions (DPS) is a Portuguese company that provides complete and integrated printing solutions and has been planning to contract a software supplier. DPS has no formal supplier-selection model and it has to choose between 2 suppliers. The case study was solved using the M-MACBETH software. I have found that complex decisions-making situations can be easily overcome by using the M-MACBETH decision model. Moreover, the usage of a model, instead of decision that follows no formal procedure, provides the decision maker with insights that can be useful to negotiate with the supplier.
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The Financial Leverage of Large Portuguese Firms in the European Context This paper studies the leverage, cost of debt servicing ability and structure of debt maturity of large Portuguese firms, over the pre-crisis (2006-2009) and post-crisis (2010-2013) periods through a comparative analysis with other European peers. We document that large Portuguese firms have been reducing their leverage since the end of 2009. We find that this decrease in leverage is not a consequence higher Equity levels but rather a result of asset’s downsizing. We also document that Portuguese firms are still more leveraged than their European peers, even though this difference has decreased over time. High corporate debt levels are transversal across industries.
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This article deals with the splendid panoramic painting depicting the Joyeuse Entrée of King Philipp III (Filipe II de Portugal) in Lisbon in 1619 which the author discovered at Weilburg castle in Germany. The author places the painting in its historical and pictorial context by comparing it to the written reports of the entry and comparable 16th and 17th century views of Lisbon. Apparently, the painting is based on a strictly planned choreography that largely follows the previous entry of Philipp II, and is identical in the painted, engraved and written descriptions of the event published between 1619 and 1622.