23 resultados para intellectual capital measurement benchmark IT IC indicator

em Repositório Científico do Instituto Politécnico de Lisboa - Portugal


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Mestrado em Gestão e Empreendedorismo

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Mestrado em Contabilidade

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Mestrado em Intervenção Sócio-Organizacional na Saúde - Área de especialização: Políticas de Administração e Gestão de Serviços de Saúde.

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Mestrado em Contabilidade e Gestão das Instituições Financeiras

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Mestrado em Gestão e Empreendedorismo

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The Tagus estuary is bordered by the largest metropolitan area in Portugal, the Lisbon capital city council. It has suffered the impact of several major tsunamis in the past, as shown by a recent revision of the catalogue of tsunamis that struck the Portuguese coast over the past two millennia. Hence, the exposure of populations and infrastructure established along the riverfront comprises a critical concern for the civil protection services. The main objectives of this work are to determine critical inundation areas in Lisbon and to quantify the associated severity through a simple index derived from the local maximum of momentum flux per unit mass and width. The employed methodology is based on the mathematical modelling of a tsunami propagating along the estuary, resembling the one occurred on the 1 November of 1755 that followed the 8.5 M-w Great Lisbon Earthquake. The employed simulation tool was STAV-2D, a shallow-flow solver coupled with conservation equations for fine solid phases, and now featuring the novelty of discrete Lagrangian tracking of large debris. Different sets of initial conditions were studied, combining distinct tidal, atmospheric and fluvial scenarios, so that the civil protection services were provided with comprehensive information to devise public warning and alert systems and post-event mitigation intervention. For the most severe scenario, the obtained results have shown a maximum inundation extent of 1.29 km at the AlcA cent ntara valley and water depths reaching nearly 10 m across Lisbon's riverfront.

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Perante os contínuos desafios com que se defrontam as organizações, consequência dos elevados níveis de competitividade, é-lhes exigido uma nova dinâmica de gestão, onde os recursos humanos se assumem como o seu principal elemento diferenciador. Neste contexto, é fundamental a existência de uma gestão estratégica dos recursos humanos, a institucionalização de um conjunto de práticas que permitam transformar os recursos humanos num activo estratégico, que conduza à execução da estratégia organizacional. Essas práticas passam pela atracção e retenção de talentos, oportunidades de desenvolvimento, propiciar boas condições de trabalho quer a nível quantitativo quer a nível qualitativo. E como cada pessoa é um ser único, dotado de características próprias, impossíveis de imitar, deve ser reconhecida a capacidade de serem uma fonte de vantagem competitiva. Não é suficiente o estabelecimento de um conjunto de boas práticas para que se possuam recursos humanos estratégicos. É fundamental fazer o acompanhamento dessas práticas através da monitorização. Na gestão o que não pode ser medido não pode ser gerido. É fundamental sensibilizar os gestores, profissionais de recursos humanos, para a criação de sistemas de medida e métricas que possam aferir a contribuição do Capital Humano para a missão e estratégia das organizações. O Balanced Scorecard é uma ferramenta de gestão que possibilita, através da informação dos seus indicadores, a implementação das estratégias nas organizações. A finalidade é garantir que os indicadores definidos estejam coerentes com a estratégia global. Essa metodologia tem assim o mérito de compatibilizar (através de indicadores quantitativos) a gestão de recursos humanos com os objectivos a longo prazo da organização. A existência de indicadores qualitativos permite ainda às organizações mensurar o nível de desempenho e motivação, factores influentes no clima organizacional

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Longevity risk is one of the major risks that an insurance company or a pension fund has to deal with and it is expected that its importance will grow in the near future. In agreement with these considerations, in Solvency II regulation the Standard formula furnished for calculating the Solvency Capital Requirement explicitly considers this kind of risk. According to the new European rules in our paper we suggest a multiperiod approach to evaluate the SCR for longevity risk. We propose a backtesting framework for measuring the consistency of SCR calculations for life insurance policies.

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The importance of Social Responsibility (SR) is higher if this business variable is related with other ones of strategic nature in business activity (competitive success that the company achieved, performance that the firms develop and innovations that they carries out). The hypothesis is that organizations that focus on SR are those who get higher outputs and innovate more, achieving greater competitive success. A scale for measuring the orientation to SR has defined in order to determine the degree of relationship between above elements. This instrument is original because previous scales do not exist in the literature which could measure, on the one hand, the three classics sub-constructs theoretically accepted that SR is made up and, on the other hand, the relationship between SR and the other variables. As a result of causal relationships analysis we conclude with a scale of 21 indicators, validated scale with a sample of firms belonging to the Autonomous Community of Extremadura and it is the first empirical validation of these dimensions we know so far, in this context.

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Mestrado em Tecnologia de Diagnóstico e Intervenção Cardiovascular. Área de especialização: Intervenção Cardiovascular.

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A crucial method for investigating patients with coronary artery disease (CAD) is the calculation of the left ventricular ejection fraction (LVEF). It is, consequently, imperative to precisely estimate the value of LVEF--a process that can be done with myocardial perfusion scintigraphy. Therefore, the present study aimed to establish and compare the estimation performance of the quantitative parameters of the reconstruction methods filtered backprojection (FBP) and ordered-subset expectation maximization (OSEM). Methods: A beating-heart phantom with known values of end-diastolic volume, end-systolic volume, and LVEF was used. Quantitative gated SPECT/quantitative perfusion SPECT software was used to obtain these quantitative parameters in a semiautomatic mode. The Butterworth filter was used in FBP, with the cutoff frequencies between 0.2 and 0.8 cycles per pixel combined with the orders of 5, 10, 15, and 20. Sixty-three reconstructions were performed using 2, 4, 6, 8, 10, 12, and 16 OSEM subsets, combined with several iterations: 2, 4, 6, 8, 10, 12, 16, 32, and 64. Results: With FBP, the values of end-diastolic, end-systolic, and the stroke volumes rise as the cutoff frequency increases, whereas the value of LVEF diminishes. This same pattern is verified with the OSEM reconstruction. However, with OSEM there is a more precise estimation of the quantitative parameters, especially with the combinations 2 iterations × 10 subsets and 2 iterations × 12 subsets. Conclusion: The OSEM reconstruction presents better estimations of the quantitative parameters than does FBP. This study recommends the use of 2 iterations with 10 or 12 subsets for OSEM and a cutoff frequency of 0.5 cycles per pixel with the orders 5, 10, or 15 for FBP as the best estimations for the left ventricular volumes and ejection fraction quantification in myocardial perfusion scintigraphy.