998 resultados para Repo, Jemima
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This chapter provides a broad look at the Portuguese process of agencification in the last two decades. As with most of the remaining chapters in this book, we cover the basics by describing the administrative landscape, its changes in organizational make-up, the delicate balance between control and autonomy in the ministry-agency relationship, perceptual changes in efficiency and performance measurement in public management, based on a comprehensive survey (COBRA survey of the CRIPO research group) sent to all public-sector organizations under public law with some degree of autonomy (see Chapter 1, Table 1.1). Portugal is undergoing the most pervasive politico-economic crisis in its short democratic history. The administrative mapping conducted in 2007 which served as the basis for the administration of the COBRA survey is already undergoing change.
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This thesis is dedicated to the study of disclosure about derivative instruments and their determinants, by Portuguese companies. We have defined the following as our main research objectives: to identify the extent of disclosure relating to derivative instruments presented by Portuguese companies; to analyze the developments in the level of disclosure; and to identify the determinants of the level of disclosure. To this end, we have examined the information that has been disclosed by listed companies, for the period 2003–2009, and by companies belonging to the banking sector and insurance sector (hereinafter identified as financial firms), for 2009. We were able to conclude, in our first phase of research, that the number of disclosing firms has evolved positively, during the period 2003–2009, and that the level of disclosure has also evolved positively. On the other hand, the values obtained in the disclosure index indicate that companies are worried about compliance with accounting standards which became mandatory in 2005 and in 2007. This indicates that the adoption of the IASB’s standards since 2005 and the mandatory adoption of International Financial Reporting Standard (IFRS) No. 7, since 2007, have influenced the level of disclosure.
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Contabilidade Financeira Avançada - Exercícios
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Um dos temas de debate político em Portugal reside no Setor Empresarial do Estado (SEE), pela sua dimensão, despesas no PIB,resultados (positivos ou negativos) e ainda os passivos. A discussão sobre esta temática aumentou desde que Portugal,no âmbito do acordo celebrado entre o governo português e a TROIKA, assumiu o compromisso de reduzir este setor. Diversas são as questões que se colocam: deve o Estado limitar-se ao papel de regulador e entregar a grande maioria dos serviços prestados pelo SEE ao setor privado? Ou seja, deve privatizar grande parte da carteira das empresas que constituem o SEE? Ou, deve o Estado continuar a ter um papel ativo em alguns setores económicos, e em quais? Independentemente da existência de diferentes opiniões sobre o SEE e das consequências a curto prazo da implementação das medidas previstas pelo acordo firmado, importa desde logo conhecer o setor para, com base na análise da informação, melhor se entender as questões a ele associadas. Dando seguimento ao trabalho iniciado em 2011, que culminou com a apresentação, do 1º Anuário do Setor Empresarial do Estado reportado à situação em 2010, o presente anuário pretende apresentar a situação do SEE na sua vertente económica, financeira e patrimonial reportada ao ano económico de 2011. Para cumprir esse objetivo apresenta informação agregada recolhida em diversas fontes de informação, nomeadamente, dispersa por sites das empresas, Tribunal de Contas, portal da DGTF, etc., que os autores entendem de maior utilidade para os diferentes utilizadores. De referir que neste 2º anuário é incluída pela primeira vez informação sobre o setor empresarial das regiões autónomas da Madeira e dos Açores. O anuário está organizado em quatro capítulos: • No primeiro capítulo é apresentado o enquadramento deste setor e uma breve comparação, com outros países da União Europeia e OCDE; • No segundo capítulo apresenta-se uma lista das principais empresas do Setor Empresarial do Estado e das Regiões autónomas da Madeira e Açores e principais fontes de informação dos dados recolhidos; • No terceiro capítulo analisam-se diferentes componentes das contas das empresas do SEE e SER, nomeadamente os Ativos,Passivos, Capital Próprios diferentes resultados (operacionais,financeiros e Líquidos); • Por último, no quarto capítulo apresentam-se as principais conclusões.Apesar de ser crescente o aumento da disponibilização da informação nos sites por parte das empresas indo de encontro ao legislado o certo é continuamos a encontrar muitas limitações no acesso em algumas. Efetivamente não se compreende porque é que algumas empresas continuem simplesmente a não ter a informação contabilística disponível, quer no seu site quer depositada no Tribunal de Contas. Aquando a elaboração do primeiro anuário a informação tratada resultava da implementação do POC. Contudo em 2010 as empresas do SEE passaram a apresentar a informação em SNC – Sistema de Normalização Contabilística. Assim, este anuário apresenta a informação já em SNC, relativa a 2011, ano objeto de análise mas também a 2010. Face ao exposto, a comparação com o primeiro anuário nem sempre será possível dado que, para além de o primeiro estar em POC e o presente em SNC, algumas empresas apresentaram valores reexpressos relativamente ao ano económico de 2010, tendo sido esses os considerados.
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Diariamente os meios de Comunicação Social questionam o papel do Sector Empresarial do Estado (SEE) na economia portuguesa e, em particular, o contributo deste sector para a dívida pública, a premência da sua existência e a eventual adopção de medidas políticas que visem a privatização de algumas Entidades que o integram. E, neste contexto, são frequentes as referências ao volume dos passivos, aos prejuízos verificados, aos vencimentos praticados ou ao número de administradores dos Conselhos de Administração. Por outro lado, alguns dos partidos políticos têm-se pronunciado sobre este sector aludindo-se ao esforço financeiro do Estado com maior acuidade pela actual crise económica mundial. Na qualidade de académicos, e alguns pela experiência adquirida enquanto autores do Anuário Financeiros dos Municípios Portugueses, considerámos oportuno proceder à análise económica e financeira do SEE. O presente estudo incide sobre as Entidades que integram a carteira principal das participações do Estado, procedendo-se numa primeira análise ao enquadramento do Sector Empresarial do Estado no Sector Público Português, identificando-se as entidades da Carteira de Participações da DGTF, da PARPÚBLICA e dos Hospitais. Analisa- se ainda o SEE numa perspectiva macroeconómica. No capítulo 2 apresenta-se a metodologia de estudo que conduziu à análise económica-financeira constante no capítulo 3.
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The significant number of publications describing unsuccessful cases in the introduction of health information systems makes it advisable to analyze the factors that may be contributing to such failures. However, the very notion of success is not equally assumed in all publications. Based in a literature review, the authors argue that the introduction of systems must be based in an eclectic combination of knowledge fields, adopting methodologies that strengthen the role of organizational culture and human resources in this project, as a whole. On the other hand, the authors argue that the introduction of systems should be oriented by a previously defined matrix of factors, against which the success can be measured.
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O objectivo da presente dissertação é a análise do desenvolvimento e utilização do acto de comunicar inserido num contexto da Cultura Digital. O processo de investigação procura a análise e compreensão da comunicação e das novas características conferidas à mensagem pelo factor multimédia. Reflecte-se sobre os modos como a prática comunicativa realizada com base no multimédia digital impulsiona uma nova forma de interacção comunicativa. A presente dissertação envolveu uma reflexão sobre a dinâmica relacional que se estabelece entre Comunicação, Design e Multimédia. Por um lado, procuram- -se definições estruturantes para a comunicação multimédia e a construção das suas mensagens, num processo mediado pela Semiótica e seu estudo de signos e ampliado pela Mediologia para um conceito de transmissão cultural. Por outro lado, apresenta- -se a Cultura Digital numa perspectiva histórica-evolutiva, contextualizando em termos tecnológicos e conceptuais o percurso que define a comunicação multimédia como a concebemos hoje. É, finalmente, analisado o novo espaço de comunicação digital, onde o design e arte multimédia se assumem como processo de investigação. O acto de comunicar entre indivíduos é um processo construído e adquirido. Além de tornar as mensagens em códigos úteis e compreensíveis, o multimédia é, fundamentalmente, comunicação, e as interacções resultantes deste processo reformulam o modelo de comunicação, tornando-o um campo de criação colectiva da mensagem.
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Fiber meshes of poly(hydroxybutyrate) (PHB) and poly(hydroxybutyrate)/ poly(ethylene oxide) (PHB/PEO) with different concentrations of chlorhexidine (CHX) were prepared by electrospinning, for assessment as a polymer based drug delivery system. The electrospun fibers were characterized at morphological, molecular and mechanical levels. The bactericidal potential of PHB and PHB/PEO electrospun fibers with and without CHX was investigated against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) by disk diffusion susceptibility tests. Electrospun fibers containing CHX exhibited bactericidal activity. PHB/PEO-1%CHX displayed higher CHX release levels and equivalent antibacterial activity when compared to PHB/PEO with 5 and 10 wt% CHX. Bactericidal performance of samples with 1 wt% CHX was assessed by Colony Forming Units (CFU), where a reduction of 100 % and 99.69 % against E. coli and S. aureus were achieved, respectively.
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In this paper we aim to identify and analyze a set of variables that can potentially influence the adoption of the Balanced Scorecard (BSC) in Portuguese public and private organizations. These variables are related to the environment (perception of environmental uncertainty), with human resources (support of top management) and, information and management systems (strategic map design and establishment of cause-effect relationships between indicators and perspectives of the BSC). Hypotheses were tested using data obtained from a questionnaire sent to 591 publicly-owned organizations and 549 privately-owned organizations in Portugal, with an overall response rate of 31.3%. The results allow us to conclude that the top management commitment, the development of strategy maps and the establishment of cause-effect relationships are factors that are associated with the implementation of the BSC.
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Image segmentation is an ubiquitous task in medical image analysis, which is required to estimate morphological or functional properties of given anatomical targets. While automatic processing is highly desirable, image segmentation remains to date a supervised process in daily clinical practice. Indeed, challenging data often requires user interaction to capture the required level of anatomical detail. To optimize the analysis of 3D images, the user should be able to efficiently interact with the result of any segmentation algorithm to correct any possible disagreement. Building on a previously developed real-time 3D segmentation algorithm, we propose in the present work an extension towards an interactive application where user information can be used online to steer the segmentation result. This enables a synergistic collaboration between the operator and the underlying segmentation algorithm, thus contributing to higher segmentation accuracy, while keeping total analysis time competitive. To this end, we formalize the user interaction paradigm using a geometrical approach, where the user input is mapped to a non-cartesian space while this information is used to drive the boundary towards the position provided by the user. Additionally, we propose a shape regularization term which improves the interaction with the segmented surface, thereby making the interactive segmentation process less cumbersome. The resulting algorithm offers competitive performance both in terms of segmentation accuracy, as well as in terms of total analysis time. This contributes to a more efficient use of the existing segmentation tools in daily clinical practice. Furthermore, it compares favorably to state-of-the-art interactive segmentation software based on a 3D livewire-based algorithm.
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Poly(vinylidene fluoride) electrospun membranes have been prepared with different NaY zeolite contents up to 32%wt. Inclusion of zeolites induces an increase of average fiber size from ~200 nm in the pure polymer up to ~500 nm in the composite with 16%wt zeolite content. For higher filler contents, a wider distribution of fibers occurs leading to a broader size distributions between the previous fiber size values. Hydrophobicity of the membranes increases from ~115º water contact angle to ~128º with the addition of the filler and is independent on filler content, indicating a wrapping of the zeolite by the polymer. The water contact angle further increases with fiber alignment up to ~137º. Electrospun membranes are formed with ~80 % of the polymer crystalline phase in the electroactive phase, independently on the electrospinning processing conditions or filler content. Viability of MC3T3-E1 cells on the composite membranes after 72 h of cell culture indicates the suitability of the membranes for tissue engineering applications.
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Biocompatibility is a major challenge for successful application of many biomaterials. In this study the ability to coat chemically and enzymatically activated poly(L-lactic acid) (PLA) membranes with heat denatured human serum albumin to improve biocompatibility was investigated. PLA membranes hydrolyzed with NaOH or cutinase and then treated with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, hydrochloride (EDAC) as a heterobifunctional cross-linker promoted the coupling single bondCOOH groups on PLA membranes and single bondNH2 groups of heat denatured human serum albumin. This resulted in increased hydrophilicity (lowest water contact angles of 43° and 35°) and highest antioxidant activity (quenching of 79 μM and 115 μM tetramethylazobisquinone (TMAMQ) for NaOH and cutinase pretreated membranes, respectively). FTIR analysis of modified PLA membranes showed new peaks attributed to human serum albumin (amide bond, NH2 and side chain stretching) appearing within 3600–3000 cm−1 and 1700–1500 cm−1 (Fig. 3). MTT studies also showed that osteoblasts-like and MC-3T3-E1 cells viability increased 2.4 times as compared to untreated PLA membranes. The study therefore shows that this strategy of modifying the surfaces of PLA polymers could significantly improve biocompatibility.
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Battery separators based on electrospun membranes of poly(vinylidene fluoride) (PVDF) have been prepared in order to study the effect of fiber alignment on the performance and characteristics of the membrane. The prepared membranes show an average fiber diameter of ~272 nm and a degree of porosity of ~87 %. The gel polymer electrolytes are prepared by soaking the membranes in the electrolyte solution. The alignment of the fibers improves the mechanical properties for the electrospun membranes. Further, the microstructure of the membrane also plays an important role in the ionic conductivity, being higher for the random electrospun membrane due to the lower tortuosity value. Independently of the microstructure, both membranes show good electrochemical stability up to 5.0 V versus Li/Li+. These results show that electrospun membranes based on PVDF are appropriate for battery separators in lithium-ion battery applications, the random membranes showing a better overall performance.
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Oporto Airport (OPO) is a success story among European regional airports. This success is expressed, among other ways, in the rapid expansion of routes and the strong growth in demand, as well as in the recognition of the airport’s quality by its users. Over the past decade, the volume of traffic increased by almost 3.4 million passengers, from the 2.6 million recorded in 2002 to over 6 million in 2012. In this paper, we analyse some of the factors that influenced the success of Oporto Airport, namely the expansion of capacity and improvements to infrastructure, the increase in the number of routes and the increased demand in response to the new capacities of this airport-airlines set. Particular emphasis is given to the role of low cost carriers (LCC) in the growth of Oporto Airport and to strategies of attracting more traffic. Some of the main opportunities and challenges that this airport will face in the coming years are also discussed.
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In the context of an e ort to develop methodologies to support the evaluation of interactive system, this paper investigates an approach to detect graphical user interface bad smells. Our approach consists in detecting user interface bad smells through model-based reverse engineering from source code. Models are used to de ne which widgets are present in the interface, when can particular graphical user interface (GUI) events occur, under which conditions, which system actions are executed, and which GUI state is generated next.