22 documents found, page 1 of 3

O impacto da CRESAP no perfil da elite administrativa portuguesa: 2020 vs 2000

Este artigo mostra-nos um quadro de grande continuidade nos perfis dos dirigentes do Estado, praticamente imune às recentes mudanças nos métodos de recrutamento. Independentemente dessas mudanças, a elite administrativa portuguesa segue um padrão de envelhecimento e continua a ser recrutada essencialmente no interior da administração pública, e frequentemente dentro do próprio ministério onde exerce funções. As...

Action of bioactive compounds in cellular oxidative response

Nowadays there is a growing demand for biodiesel production which can be made, among other resources, from mushroom biomass. It is well established the continuous growth of the population affected with premature aging and numerous diseases in which reactive oxygen species (ROS) are implicated. This fact leads to an increasing consumption of antioxidant rich nutrients, such as mushrooms, which are effectively pr...

'Enhancers' and 'copers'? Understanding drinking motives and alcohol use among ...

Abstract Alcohol is a prevalent drug worldwide. However, research has overlooked the reasons and contexts for alcohol consumption among international workers. This study addresses this research gap drawing upon motivational and contextual theories. An online survey targeted 870 international workers that include assigned expatriates, self-initiated expatriates, and migrants. Results indicate alcohol consumption...

Thermal regulation of photovoltaic modules using thermal energy storage units w...

High operating temperatures reduce the performance of commercial polycrystalline silicon photovoltaic (PV) devices by reducing the efficiency of solar to electrical energy conversion in the PV cells. This paper presents the major developments in the construction of a real-scale experimental apparatus to evaluate the efficiency improvement of PV systems by placing a movable thermal energy storage (TES) unit fill...

Robust vector tracking for carrier phase signals with separate estimation of co...

A robust implementation of a partitioned vector tracking for GNSS carrier phase signals is presented, with separate estimation of common and individual satellite errors, based on a combination of vector and scalar loop estimates. The partitioned vector tracking is a hybrid implementation of a phase tracking loop with contributions from a vector based implementation (where information of all satellites may be re...

Impact of climate change on plant nutrition

Sharing economy: the establishment of organizational identity overtime, conside...

The Sharing Economy (SE) has been growing at an impressive rate across the globe (Cohen & Kietzmann, 2014) and emerging as an innovative and rapidly growing sector of the economy (Hira & Reilly, 2017), which attracted the attention of the scientific community. An increasing number of studies have been brought to light helping to document and analyze how SE manifests and evolves across economic systems, thus, co...

Sharing economy: The establishment of organizational identity overtime, conside...

The Sharing Economy (SE) has been growing at an impressive rate across the globe (Cohen & Kietzmann, 2014) and emerging as a new and rapidly growing sector of the economy (Hira & Reilly, 2017), which has the effect of attracting the attention of the scientific community over the last few years. An increasing number of studies on the topic have been brought to light helping to document and analyse how SE manifes...

Development, characterization and efficacy evaluation of dermocosmetic formulat...

Portugal is one of the richest European countries in what concerns to thermal waters, and the majority of Portuguese spas are distributed by northern and central regions. The use of such water for therapeutic purposes, also known as mineral-medicinal water, has always been aroused a continuous interest in carrying out the characterization of this type of waters for the treatment of a specific condition. Many na...

Estilos de vida em estudantes do ensino superior

Estilos de vida adotados pelos jovens influenciam o controlo e gestão da sua vida e sua relação com os outros. Os estudantes universitários têm mostrado adotar comportamentos pouco consentâneos com um estilo de vida saudável. Sabe-se menos em relação à associação entre esses comportamentos e fatores como a deslocação do estudante do seu ambiente de vida habitual. Identificar e descrever os estilos de vida de es...