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Aspetos dinâmicos da atmosfera em situações de descargas elétricas em Portugal ...

Pretende-se com este trabalho realizar um estudo das características dinâmicas da atmosfera associadas a situações de descargas elétricas em Portugal Continental, bem como avaliar a capacidade de modelar as descargas elétricas através de algumas variáveis meteorológicas e índices de instabilidade previamente selecionados. Para este propósito foram utilizados os dados das descargas elétricas de sete anos (2003 a...

Children's satisfaction with school lunch in public primary schools

Evaluation of food waste at primary schools based on protein source: meat vs. f...

[Abstract] ; [Resumo]

Records of human occupation from Pleistocene river terrace and aeolian sediment...

In the uppermost reach of the Lower Tejo River (eastern central Portugal), where the river crosses two quartzite ridges that separate the Ródão (upstream) and Arneiro (downstream) depressions, Palaeolithic artefacts have been recovered from three lower river terrace levels and a cover unit of aeolian sands. This paper presents data on the discovery of archaeological artefacts from the terrace levels and the aeo...

Glioblastoma Multiforme Mimicking Limbic Encephalitis

Selective and bilateral involvement of the limbic system by gliomas is rarely reported. The authors report the case of a 58 years-male complaining of short-term memory loss in the preceding three weeks. The initial MRI revealed areas of hyperintensity on T2 and FLAIR sequences involving both hippocampus, amygdala, parahippocampus gyrus and the fornix, with contrast enhancement in the right mesial temporal regio...

Fertility, full-time and part-time female employment in Europe

This paper aims to analyse the relation between women’s employment patterns, more specifically part-time employment, and fertility trends in European countries, using Eurostat data. It is argued that this approach sheds an innovative light on the debate. The issue of part-time employment is put into perspective in the context of family policies and gender relations. The fertility/employment relationship shows t...

Mechanical caracterisation of polyester resin and corn natural fibers composite

The use of natural fibers as reinforcement in polymer matrix composites is gaining popularity in the development of renewable products. Although glass and other synthetic fiber-reinforced plastics possess high specific strength, their fields of application are very limited because of their inherent higher cost of production. The work deals with the characteristics of fiber composites that can offer several adva...

O transporte ferroviário de mercadorias : o caso europeu

Tese de mestrado integrado. Engenharia Civil (especialização em Vias de Comunicação). Faculdade de Engenharia. Universidade do Porto. 2008

Mechanical properties of stent-graft materials

An aneurysm is a localized blood-filled dilatation of an artery whose consequences can be deadly. One of its current treatments is endovascular aneurysm repair (EVAR), a minimally invasive procedure in which an endoprosthesis, called a stent-graft, is placed transluminally to prevent wall rupture. Early stent-grafts were custom designed for the patient through the assembling of off-the-shelf components by the o...

Modeling of the medical device development process

Models are abstract representations of reality that are built, analyzed and manipulated to augment the understanding of that reality. They can either be mental or codified but, in both cases, they contribute to good decision-making by ensuring that the right people use the right information at the right time. In order to reduce time to market, companies commonly adopt product development processes and the medic...