2010
Authors
Almeida, FL; Terra, BM; Dias, PA; Goncalves, GM;
Publication
2010 IEEE CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA)
Abstract
The project XPRESS introduces a completely new scalable concept of an expertonic networked factory, which is composed by a coordinated team of specialized autonomous entities (intelligent production units), each knowing how to do a certain process optimally. This paper looks in particular to the transport intelligent unit implementation, which is responsible for the transportation of components at the shop-floor. An architecture based in a multi-agent approach that uses automatic guided vehicle expertons to perform this task is suggested. Additionally, it is presented an implementation of the automatic guided vehicle transport intelligent unit that uses the. NET framework integrated with the expertonic framework.
2010
Authors
Almeida, F; Oliveira, J; Cruz, J;
Publication
International Journal of Software Engineering & Applications
Abstract
2010
Authors
Cruz, SCS; Teixeira, AAC;
Publication
REGIONAL STUDIES
Abstract
Cruz S. C. S. and Teixeira A. A. C. The evolution of the cluster literature: shedding light on the regional studies-regional science debate, Regional Studies. Despite the intuitive awareness about the rising importance of the cluster literature, an empirical study on its precise magnitude and evolution has yet to be accomplished. Based on two complementary bibliometric exercises - comprising 50 000 citations and almost 3000 abstracts, ranging in date from 1962 to 2008 - it was demonstrated that although seminal contributors come both from regional science and regional studies areas, the 'convergence' between regional science and regional studies approaches is still a chimera. [image omitted] Cruz S. C. S. et Teixeira A. A. C. L'evolution de la documentation au sujet des grappes: repandre de la lumiere sur le debat a propos des etudes regionales et de la science regionale, Regional Studies. Malgre la conscience intuitive a l'egard de l'importance accrue de la documentation au sujet des grappes, il faut encore faire une etude empirique sur son ampleur precise et son evolution. A partir de deux exercices bibliometriques - comportant 50 000 citations et a peu pres 3 000 resumes, allant de 1962 jusqu'a 2008 - on montre que l'on poursuit toujours des chimeres quant au 'rapprochement' entre la facon prise dans la science regionale et celle employee dans les etudes regionales. Grappes Grappes industrielles Implantation industrielle Bibliometrie Cruz S. C. S. und Teixeira A. A. C. Die Evolution der Cluster-Literatur: eine Untersuchung der Debatte uber Regionalstudien und Regionalwissenschaft, Regional Studies. Die wachsende Bedeutung der Literatur uber Cluster ist zwar auf intuitive Weise bekannt, doch eine empirische Studie uber ihre genaue Grosse und Evolution steht noch aus. Ausgehend von zwei komplementaren bibliometrischen Untersuchungen - mit 50.000 Zitaten und beinahe 3000 Inhaltsangaben aus den Jahren 1962 bis 2008 - wurde nachgewiesen, dass zukunftsweisende Beitrage zwar sowohl aus dem Bereich der Regionalwissenschaft als auch aus dem der Regionalstudien kommen, aber die 'Konvergenz' der Ansatze der Regionalwissenschaft und der Regionalstudien weiterhin ein Trugbild bleibt. Cluster Branchencluster Industriestandort Bibliometrie Cruz S. C. S. y Teixeira A. A. C. La evolucion de la literatura de aglomeraciones: un analisis sobre el debate de estudios regionales y ciencia regional, Regional Studies. Aunque la creciente importancia de la literatura sobre aglomeraciones se conoce de modo intuitivo, todavia es necesario un estudio empirico sobre su magnitud precisa y evolucion. En base a dos ejercicios bibliometricos complementarios - que contienen 50.000 citaciones y casi 3000 resumenes, y que van desde 1962 a 2008 - se demostro que aunque las contribuciones importantes proceden tanto de areas de estudios cientificos como regionales, la 'convergencia' entre los enfoques de ciencia regional y estudios regionales es todavia una quimera. Aglomeraciones Aglomeraciones industriales Ubicacion industrial Bibliometria.
2010
Authors
Teixeira, AAC; da Costa, MF;
Publication
Journal of Academic Ethics
Abstract
There are very few (published) accounts of editorial misconduct, and those that do exist are almost exclusively focused on medicine-related areas. In the present article we detail a case of editorial misconduct in a rather underexplored domain, the social sciences. This case demonstrates that although legal systems provide different instruments of protection to avoid, compensate for, and punish misconduct on the part of journal editors, the social and economic power unbalance between authors and publishers suggests the importance of alternative solutions before or instead of bringing a lawsuit to court. It puts forward strong arguments in favour of the need for effective regulatory bodies so as to achieve and maintain a culture of research integrity by all involved in the process. © 2010 Springer Science+Business Media B.V.
2010
Authors
Teixeira, AAC; de Fatima Oliveira Rocha, M;
Publication
Journal of Academic Ethics
Abstract
The phenomenon of cheating in higher education is of overwhelming importance in that the students engaging in these acts are unlikely to have the skills necessary for their future professional life. Despite its relevance, the empirical evaluation of cheating in universities has been almost exclusively focused on the US context. Little is known about cheating at the European level, let alone in Portugal. Even less is explored at the regional level. In this paper we present evidence on the perception of cheating by Portuguese undergraduate students of economics/business degrees. We undertake a large-scale survey, involving 2675 students from all Portuguese mainland public universities (10). We found that copying-favourable environments are associated with a higher propensity to cheat. Moreover, in universities where 'codes of honour' exist, this propensity tends to be lower. Finally, the propensity to copy seems to be highly influenced by the cultural systems and socially-related factors of different regions. © 2010 Springer Science+Business Media B.V.
2010
Authors
Teixeira, AAC; Fortuna, N;
Publication
RESEARCH POLICY
Abstract
An important characteristic of the role of foreign trade in the technological catch-up of countries is the complementary nature with technological change, human capital development and local R&D efforts. Using cointegration techniques, evidence based on Portuguese long-run growth suggests that by investing in certain capacity-building activities, namely human capital and local R&D efforts, countries can improve their ability to identify, value, assimilate, and apply (or exploit) knowledge that is developed in other (more developed) countries. Although human capital has a stronger direct impact on total factor productivity than internal R&D efforts, the latter's indirect impact, by means of machinery and equipment imports, is tremendous. Trade also emerges as a powerful direct contributor to long-term total factor productivity, especially in its embodied form, through the acquisition of advanced machinery and equipment from more developed countries. The (smaller) productivity enhancing effect of licenses and FDI seems to be strongly dependent on institutional circumstances, namely those related to human capital investments and incentives.
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