Sustainability, entrepreneurship and tourism, destination hospitality research have attracted scholars’ attention for their relevance in bringing to fruition a future that links economic well-being with the environmental, cultural, social sustainability of human beings. This article provides bibliometric overview academic where these topics intersect. To accomplish this, various methods are imp...

From the oldest times, forest has been main food, shelter and energy source, playing an essential role in development of human societies. Old stands are characterized by their long life, large heights diameters help conserving biodiversity. The surfaces occupied old have decreased lately because wood mass high value which leads to exploitation. This is furthermore coupled with climate changes, ...

Protoplanetary discs should exhibit a weak vertical variation in their rotation profiles. Typically this `vertical shear' issues from baroclinic effect driven by the central star's radiation field, but it might also arise during launching of magnetocentrifugal wind. As consequence, protoplanetary are subject to hydrodynamical instability, shear instability' (VSI), whose breakdown into turbulenc...

The ease of travel by jet aircraft has opened up island areas not only for study but also for introduction of weeds, pests, and pathogens. We are at a critical juncture in the study of island organisms, which have become more accessible at the same time that they are vanishing. With the urgency for study of island organisms, we have many new tools, especially molecular ones, which have validate...

In May 2003 the almost simultaneous publication of the Update on Clinical Practice Guidelines by The Spanish Society of Cardiology, an initial document of the VII Report of Joint National Committee (JNC), and the European Society of Cardiology and European Society of Hypertension Guidelines in another jointly issued document, created controversy. The points of disagreement basically concerned t...

This work describes the impact of different teachers’ approaches in using Moodle, for supporting their courses, at the Polytechnic of Porto School of Engineering. The study covers five different courses, from different degrees and different years, and includes a number of Moodle resources especially supporting laboratory classes. These and other active resources are particularly analyzed in ord...

Pseudoxanthoma elasticum (PXE) is an inherited metabolic disease with autosomal recessive inheritance caused by mutations in the ABCC6 gene. Since the first description of the disease in 1896, alleging a disease involving the elastic fibers, the concept evolved with the further discoveries of the pivotal role of ectopic mineralization that is preponderant in the elastin-rich tissues of the skin...

OBJECTIVE Study designed to identify characteristics of patients related to increased hospital mortality after valve replacement, assumed as risk factors. METHODS Retrospective study including 808 patients submitted to the implant of St. Jude Biocor porcine bioprosthesis between 1994 and 2009 at Instituto de Cardiologia do Rio Grande do Sul. Primary outcome was hospital death and hospital mor...

Objectives: Recent studies with event-related brain potentials (ERPs) investigating music processing found (early) negativities with righthemispheric predominance as a response to inappropriate harmonies within sequences of chords. The stimuli used in those studies were fairly artificial in order to control the experimental factors (e.g. variations in tempo and loudness were eliminated). This r...