António M. Caetano

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Continuity envelopes for the spaces of generalised smoothness B (s,Ψ) pq (R n) and F (s,Ψ) pq (R n) are studied in the so-called supercritical case s = 1 + n/p, paralleling recent developments for a corresponding limiting case for local growth envelopes of spaces of such a type. In addition, the power of the concept is used in proving conditions for some(More)
The aim of this study is to characterize the current status of blended learning in Portugal, given that b-learning has grown exponentially in the Portuguese market over recent years. 38 organizations (representing 68% of all institutions certified to provide distance training by the Government Labour Office – DGERT-) participated in this study. The results(More)
We characterize local embeddings of Besov spaces B 0,b p,r involving only a slowly varying smoothness b into classical Lorentz spaces. These results are applied to establish sharp local embeddings of Besov spaces in question into Lorentz-Karamata spaces. As consequence of these results, we are able to determine growth envelopes of spaces B 0,b p,r and to(More)
The Psychological Capital Questionnaire (PCQ) is the most commonly used measure for assessing psychological capital in work settings. Although several studies confirmed its factorial validity, most validation studies only examined the four-factor structure preconized by Luthans, Youssef, and Avolio, not attending to empirical evidence on alternative(More)
1. EXECUTIVE SUMMARY In this paper we will describe a national perspective on the achievements of the Bologna Process in Portugal regarding the academic years of 2006/2007 and 2007/2008, and detail the approach followed at the Lisbon University Institute (ISCTE-IUL). The main objective of the paper is to describe the joint initiative that has been developed(More)