Rev Esp Cardiol 2004;57(6):495-8 495 (type I fibers), which are recruited and activated during moderate intensity exercise. Given the above, it is understandable that not all exercise or sporting activity will have the same effect on the lipid profile. Unfortunately, on many occasions the terms “physical exercise” and “sport” are used as synonyms, even though they describe different concepts. P...

Ethnic minorities share an unequal burden of cardiometabolic syndrome. Physical activity (PA) has been shown to be an important factor for improving the outcomes of these diseases. While metabolic equivalents (METs) have been calculated for diverse activities, most cultural activities have not been evaluated. Hula, the traditional dance of Native Hawaiians, is practiced by men and women of all ...

This paper describes a study of a simple open learner model that can be optionally released to peers in named or anonymous form, to facilitate collaborative and competitive learning in a situation where the learner model contents contributed to students' assessment. Results suggest that, under the right conditions, students may start working sooner; discussion amongst students can be increased;...

Most developed countries exhibit high rates of R&D performed in industry, but the situation is considerable different in medium income countries such as Portugal. Despite the lower levels of R&D, Portuguese firms have increased their competitiveness, and the country has been able to show remarkable levels of economic performance. This paper provides a framework to analyze the way in which R&D i...

Mining local structure is important in data analysis. Gaussian mixture is able to describe local structure through the covariance matrices, but when used on highdimensional data, fitly specifying such a large number of d(d + 1)=2 free elements in each covariance matrix is difficult. In this paper, by constraining the covariance matrix in decomposed orthonormal form, we propose a Local PCA algor...

Article history: Received 5 April 2015 Received in revised form 30 May 2015 Accepted 2 June 2015 Available online 9 June 2015 Communicated by D.-Z. Du

Competition, despite its potential drawbacks, is an easily adopted and frequently used motivator in classrooms. Individual abilities, in the years of schooling, are inevitably different, and performance in competition is heavily ability dependent, resulting that more-able students always win while less-able students always lose. Students easily perceive how well they perform through the result ...

We prove a lower bound ρ ≥ 9.001 for the competitive ratio of the so-called online matching problem on a line. As a consequence, the online matching problem is revealed to be strictly more difficult than the “cow problem”.