988 resultados para Local Hidden-variables


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Implementing multi-level governance has been a key priority in EU cohesion policy. This study assesses the perceived achievements and shortcomings in implementing European Social Fund by analyzing the deficits and weaknesses as well as the poor participation of local agents who are in direct contact with the beneficiaries in order to design and implement this fund, which is the main financial instrument of EU social policy.

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It is shown that electrospun poly(vynilidene fluoride) nanofibers are fully poled right after preparation and show b-phase contents of 70%, therefore being able to be implemented into electroactive devices without further processing steps. Further,the local piezoelectric properties of individual electrospun fibers have been studied by piezoresponse force microscopy. Piezoelectric response, polarization switching, and nanoscale patterning of the fibers have been demonstrated.

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Este artículo tiene como objetivo identificar y analizar un conjunto de variables contingentes e institucionales que pueden potencialmente influir en el conocimiento e implementación del Cuadro de Mando Integral (CMI) en las organizaciones portuguesas pertenecientes al sector público y privado.

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Esta comunicación tiene como objetivo identificar y analizar un conjunto de variables contingentes e institucionales que pueden potencialmente influir en el conocimiento e implementación del Cuadro de Mando Integral (CMI) en las organizaciones portuguesas pertenecientes al sector público y privado. Para comprobar empíricamente las hipótesis de investigación formuladas hemos recurrido a los datos obtenidos mediante la aplicación de un cuestionario postal a 591 organizaciones públicas y 549 organizaciones privadas portuguesas, con una tasa de respuesta total del 31,3%. Los resultados obtenidos indican la asociación entre el conocimiento CMI y el grado de formación de los empleados, así como entre la implementación del CMI y la realización de cursos de formación. Por otro lado, no hemos obtenido evidencia empírica respecto a la posible relación entre la implementación del CMI y el grado de comunicación interna, el recurso a consultores externos, cuestiones de “modas de gestión” y la búsqueda de legitimidad.

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Within the development of motor vehicles, crash safety (e.g. occupant protection, pedestrian protection, low speed damageability), is one of the most important attributes. In order to be able to fulfill the increased requirements in the framework of shorter cycle times and rising pressure to reduce costs, car manufacturers keep intensifying the use of virtual development tools such as those in the domain of Computer Aided Engineering (CAE). For crash simulations, the explicit finite element method (FEM) is applied. The accuracy of the simulation process is highly dependent on the accuracy of the simulation model, including the midplane mesh. One of the roughest approximations typically made is the actual part thickness which, in reality, can vary locally. However, almost always a constant thickness value is defined throughout the entire part due to complexity reasons. On the other hand, for precise fracture analysis within FEM, the correct thickness consideration is one key enabler. Thus, availability of per element thickness information, which does not exist explicitly in the FEM model, can significantly contribute to an improved crash simulation quality, especially regarding fracture prediction. Even though the thickness is not explicitly available from the FEM model, it can be inferred from the original CAD geometric model through geometric calculations. This paper proposes and compares two thickness estimation algorithms based on ray tracing and nearest neighbour 3D range searches. A systematic quantitative analysis of the accuracy of both algorithms is presented, as well as a thorough identification of particular geometric arrangements under which their accuracy can be compared. These results enable the identification of each technique’s weaknesses and hint towards a new, integrated, approach to the problem that linearly combines the estimates produced by each algorithm.

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In this paper we aim to identify and analyze a set of variables that can potentially influence the adoption and knowledge of the Balanced Scorecard (BSC) in Portugal. Hypotheses were tested using data obtained from a questionnaire sent to 591 publicly-owned organizations (local governments, municipal corporations and hospitals) and 549 privately-owned organizations (large companies and small and medium enterprises) in Portugal. The results allow us to conclude that although the majority of respondents claimed to know the BSC, its use in Portugal is still limited and very recent, particularly in the public sector organizations. However, it should be noted that its use has increased in Portugal in recent years. The study also reveals that in spite of the noticeable differences between public and private sector, the BSC is used in the public sector after a few adjustments to the traditional model. Using as theoretical framework the contingency and institutional theories, we found that decentralization, vertical differentiation and the degree of higher education are associated with the implementation of the BSC.

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We estimate and compare the performance of Portuguese-based mutual funds that invest in the domestic market and in the European market using unconditional and conditional models of performance evaluation. Besides applying both partial and full conditional models, we use European information variables, instead of the most common local ones, and consider stochastically detrended conditional variables in order to avoid spurious regressions. The results suggest that mutual fund managers are not able to outperform the market, presenting negative or neutral performance. The incorporation of conditioning information in performance evaluation models is supported by our findings, as it improves the explanatory power of the models and there is evidence of both time-varying betas and alphas related to the public information variables. It is also shown that the number of lags to be used in the stochastic detrending procedure is a critical choice, as it will impact the significance of the conditioning information. In addition, we observe a distance effect, since managers who invest locally seem to outperform those who invest in the European market. However, after controlling for public information, this effect is slightly reduced. Furthermore, the results suggest that survivorship bias has a small impact on performance estimates.

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A nomeação de Guimarães como Capital Europeia da Cultura (CEC) em 2012, para além de suscitar o natural orgulho e reforçar a auto-estima dos residentes, veio colocar na ordem do dia a necessidade de medir os efeitos que a concretização deste mega-evento pode provocar na cidade e no resto do município. A discussão dos benefícios e dos custos e um alargado envolvimento da comunidade tende a permitir encontrar formas de reduzir os impactos negativos e aumentar os impactos positivos. Para isto, importa realizar debates e promover a participação e envolvimento da comunidade. Esta comunicação analisa o envolvimento da população e das associações locais na Capital Europeia da Cultura 2012 através da cobertura feita pela imprensa local à preparação do evento. A análise de conteúdo às notícias publicadas abrangeu o período que medeia entre Janeiro e Agosto de 2011 e respeitou a dois semanários locais. Com base na análise efectuada, pode concluir-se que tem existido uma forte reacção negativa por parte da população e das associações locais à entidade organizadora da CEC 2012, que colocam em questão o envolvimento e participação prevista dos vimaranenses no evento. Resta saber se a nova gestão, nomeada em Agosto de 2011, será capaz de recuperar o entusiasmo e apoio da população vimaranense ao projecto a tempo de se constituir como um factor de sucesso deste mega-evento.

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In this article we aim to identify and analyze a set of variables that can potentially influence the adoption of the Balanced Scorecard (BSC)in Portugal. Hypotheses were tested using data obtained from a questionnaire sent to 591 publicly-owned organizations (local governments, municipal corporations and hospitals) and 549 privately-owned organizations (large companies and small and medium enterprises) in Portugal, with an overall response rate of 31.3%. The results allow us to conclude that although the majority of respondents claimed to know the BSC, its use in Portugal is still limited and very recent, particularly in the public sector organizations. However, it should be noted that its use has increased in Portugal in recent years. Using as theoretical framework the contingency and institutional theories, we found that decentralization, vertical differentiation and the degree of higher education are associated with the implementation of the BSC.

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Este artículo tiene como objetivo analizar la relación entre un conjunto de variables contextuales e internas y la adopción del Cuadro de Mando Integral (CMI) en las empresas privadas portuguesas. Como medio básico para la recolección de los datos se ha realizado una encuesta postal a través del envío de un cuestionario a 549 empresas privadas portuguesas, con una tasa de respuesta del 28,2%. Los resultados obtenidos indican que existe una asociación positiva entre la implementación del CMI y el grado de diversidad de los bienes y servicios de la organización; la propiedad de grupos extranjeros; y el tamaño organizacional.

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In this paper, we present a method for estimating local thickness distribution in nite element models, applied to injection molded and cast engineering parts. This method features considerable improved performance compared to two previously proposed approaches, and has been validated against thickness measured by di erent human operators. We also demonstrate that the use of this method for assigning a distribution of local thickness in FEM crash simulations results in a much more accurate prediction of the real part performance, thus increasing the bene ts of computer simulations in engineering design by enabling zero-prototyping and thus reducing product development costs. The simulation results have been compared to experimental tests, evidencing the advantage of the proposed method. Thus, the proposed approach to consider local thickness distribution in FEM crash simulations has high potential on the product development process of complex and highly demanding injection molded and casted parts and is currently being used by Ford Motor Company.

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Tourism activities are among the most relevant drivers for economical growth and development in various economies. Every year, competition increases tourist destinations (Farhangmehr & Simões, 1999), making it an increasingly complex and geographically diverse range of activities (Pearce, 1991).Such relevance is reflected in the proliferation of studies in the overall area known as tourism, under various perspectives and backgrounds. Previous studies conducted in such contexts suggest that cross-border regions are an attractive and desirable idea, yet requiring further theoretical and empirical research (Studzieniecki & Mazurek, 2007). The new configuration of many cross-border regions calls for a debate on issues concerning its development, raising up important dimensions, such as, organization and planning of common tourism destinations. In particular, there is still a gap in the understanding of destination management in cross-border regions and the customer profile and motivations. Overall this research aims at attaining a deeper understanding of the profile and behavior of consumers in tourism settings, addressing the predisposition for the destination. To address our question we will take an interdisciplinary perspective bringing together inputs from areas, such as, marketing, tourism and local/regional economics. We developed a theoretical model entailing the following constructs: involvement, place attachment, destination satisfaction and loyalty. We then establish potential the relationships among these variables. We suggest that involvement has a positive and direct effect in the two dimensions of place attachment, as well as indirectly, through the construct of satisfaction. Additionally, satisfaction has a direct effect on destination loyalty. Implications for future research are presented.

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The present study envisages to analyse and perceive change within the Portuguese local governments’ accounting information system. This change has occurred in recent years due to the development of the Cost Accounting System (CAS). Are there divergences between those that adopted and those that did not the CAS? As of today, to what extent is the CAS implemented? What factors do determine the level of development of the CAS amongst Portuguese local governments? This study has analysed several factors like the current legal framework, the local governments’ size, the financial independence and the level of political competitiveness. The empirical analysis focus upon the results as obtained by means of questionnaire which was applied to all the Portuguese Local Government (308). Although one may consider that its development is rather shallow, evidence unfolds that about 48% of the respondents have already adopted the CAS. It highlights that the pressure exerted by the current legal framework, namely the POCAL (Plano Oficial de Contabilidade das Autarquias Locais – Local Government Accounting Official Plan), the NLFL (Nova Lei das Finanças Locais – Local Finances New Law) and the RGTAL (Regime Geral de Taxas das Autarquias Locais – Local Government General Regime of Taxes), justifies that most of the local governments has adopted the new system of control and accounting information in recent years.The importance of information stemming from the CAS, thus bettering and refining the decision making process, is consistent with the positive evolution of this system, in the short-run. The institutions’ size as well as the level of financial independence and political competitiveness may also be pondered as most significant variables within this empirical analysis.

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ABSTRACT The objective of this study was to evaluate the effect of growth reducer and nitrogen fertilization on morphological variables, SPAD index, radiation interception, and grain yield of three cultivars of wheat. The experimental design was a randomized block in factorial scheme 3x5x2, with three cultivars (Mestre, Iguaçú and Itaipú), five nitrogen doses (0, 40, 80, 120, 160 Kg ha-1), and application or no application of a growth reducer, with three replications. The following characteristics were evaluated: plant height, SPAD index, leaf area index (LAI), Global Radiation Interception (GRI) and grain yield. The Tukey test (p < 0.05) was used for the comparison between the means of cultivar and growth reducer factors, and for a regression analysis to evaluate N levels. Increasing the dose of nitrogen promotes an increase in LAI of plants of wheat crops differently among cultivars, which leads to a greater degree of global radiation interception. At doses higher or equal to 120 Kg ha-1 of nitrogen, there are significant differences in grain yield between treatments with and without the application of the growth reducer. The significant interaction between growth reducer and nitrogen dose, showed that applications of growth reducer increase the GRI at doses above and below 80 Kg ha-1 of nitrogen. Nitrogen rates of 138 and 109 Kg ha-1 are responsible for maximum grain yields of wheat, which is 4235 and 3787 Kg ha-1 with and without the use of growth reducer, respectively.

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This paper seeks to investigate the use of performance information by politicians and whether the institutional reforms on performance management (PM) have been operationalized by local politicians. Differences on the policy field and the organizational context have been analyzed. Our goal is contribute to knowledge on PM in the political sphere and understand the different responses of politicians to government change initiatives (mainly coercive pressures). Our findings show that local politicians support the notion that greater attention should be devoted to the use of performance information on the evaluation process. Nevertheless they are very skeptic in relation to effective execution of government reforms. There is an internal culture where agencies are embedded, strongly influenced by the high degree of politicisation among senior managers, that lead politicians to be more concerned about personal opinions and informal performance information rather than to use more sophisticated information (output and outcome measures). The institutional approach helps us to identify political responses to institutional pressures and understand the reasons for a reduced use in the Portuguese context.