Browsing by Issue Date, starting with "2007-12"
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- Explicit almost-periodic factorization for a class of triangular matrix functionsPublication . Câmara, Maria Cristina; Martins, Maria do CarmoThe canonical generalized factorization of a class of 2×2 triangular matrix symbols associated to convolution operators on a finite interval is studied. A case is considered in which the non-diagonal entry is an almost-periodic trinomial whose spectrum consists of the point zero and two other points of different signs whose distance is less than 1. Explicit formulas for the factors of such a factorization are obtained.
- Evaluating the propensity for entrepreneurship among university studentsPublication . Couto, João Pedro Almeida; Camilo, Maria JoséEntrepreneurship is a major element in fostering the dynamics of an economy and bringing new types of competitive business. The value of this new business depends a lot on the capabilities of the entrepreneurs. Having a university degree is a relevant aspect to the establishment of high value added new ventures that capture knowledge and innovative technologies. Thus the purpose of this paper is to understand the propensity to entrepreneurship among university students and the factors that influence this propensity. Therefore we contribute to the literature on entrepreneurship by analysing the factors that determine the propensity for starting a new business among a specific segment of individuals that due to their education can foster the creation of high value ventures and positively influence the economic development of an economy. We use a sample of university students in Portugal to test a framework of variables that tries to weight the influence of socio-demographic variables, psychological characteristics and contextual factors, namely the type of universities and course and national institutional framework, applying a probabilistic model to test the relative importance of these factors. The results show nationality, gender, enrolment in academic associations and family background are the more significant factors that differentiate students that consider starting a new business. Other relevant elements are the level of income, sports activity engagement and travelling abroad experience.
- Level of the marketing strategical planning adopted by the touristic accommodations companies of the autonomous regions of Azores and MadeiraPublication . Faias, Carlos; Faias, Cláudia; Couto, João Pedro AlmeidaThe affirmation of the regions as potential touristic destinations depends, among others factors, on the level of development of the offer. It is a fact that, for the regions of touristic destination take advantage of the phenomenon of tourism, it’s necessary to create structures and economical activities that support this phenomenon. However, it is on the side of the demand that inhabits the power of choice, specifically the motivations, preferences, needs and trends of the market. Therefore, in a strategical process, the touristic marketing seeks to create conditions for the attraction of the demand, guiding the touristic offer in a proactive form. This happens when it develops new services that create new necessities in the market, or a reactive attitude, when adopting the changes of tastes, preferences and attitudes of the potential and effective markets. Based on this fact, the present article intends to identify the level of the marketing strategical planning adopted by the touristic accommodations companies of the Autonomous Regions of Azores and Madeira, namely, the enterprises inserted in the traditional hostelry and rural tourism. Beginning with a bibliographical revision concerning the strategical planning of tourist marketing, the work is based on a research, through the treatment of the primary data collected through an inquiry. The identification of the main strategies of marketing followed by the companies was demonstrated by the analysis of clusters in the agglomeration of the touristic units in groups with different performances in terms of marketing strategical planning.
- Governance and the determinants of local economic development in Raia Central IbéricaPublication . Neto, Paulo; Couto, João Pedro Almeida; Natário, Maria ManuelaThe dynamics of territorial governance configure a virtual geographic space and promote synergies and competitiveness. The ability to decide, adjust and regulate the territory depends of competent and efficient governance systems. These systems have an important role in the territorial innovation process all the way to the definition of projects, to regional politics and also in the regulation and organization of local activities. Thus, the aim of this paper is to present the results of an empirical research of the companies of the Raia Central Ibérica Region, which is located in the border area of Central Portugal/Spain. The research assesses entrepreneur satisfaction with respect to the sub-regions governance systems and their impact in the local dynamics of innovation and in the local economic development. The paper examines the imbalances in the satisfaction of governance systems in the sub-regions of Raia Central Ibérica. Based on an empirical study, the imbalances could be broadly attributed to differences in their most important problems, to the lack of common identity, to the lack of government/public intervention, but also to the lack of cooperation and to innovation.
- A coordenação de segurança e saúde na fase de obra : análise das obrigações legais dos coordenadores de segurança em obraPublication . Borges, Sandra Carla Macedo Correia de Andrade; Teixeira, José Manuel CardosoA Directiva Estaleiros (Directiva 92/57 IeEE de 24 de Junho) introduziu uma nova abordagem na segurança e saúde na construção que inclui o envolvimento de todos os intervenientes em todas as fases do processo e ainda a criação de uma nova função: a coordenação de segurança. Face ao tempo decorrido desde a sua publicação e transposição (em Portugal em 1995), mesmo tendo em conta a evolução que tem acontecido no sector, constata-se que a sinistralidade laboral na construção não teve a diminuição que seria de esperar e mantém-se dentro das mais elevadas em Portugal. Verifica-se que existem ainda algumas dúvidas na aplicação prática da legislação que fez a transposição da referida directiva em Portugal (Decreto-Lei 155/95 de 1 de Julho revisto pelo Decreto-Lei 273/2003 de 29 de Outubro). Entre estas disposições encontram-se as relativas à coordenação de segurança e saúde em obra Esta tem agregadas uma série de obrigações que em muitos casos necessitam ser especificadas e clarificadas. Este estudo visa precisamente contribuir para a clarificação destas obrigações, traduzindo-as em termos de actividades a desenvolver pela coordenação de segurança em obra, facilitando a sua implementação prática através do que se pretende que seja uma metodologia do exercício da coordenação em obra. Deste modo, definem-se as referidas actividades, assim como os relatórios e as listas de verificação que permitem o exercício e sistematização da coordenação de segurança em obra.