329 documents found, page 1 of 33

Masters of the land, masters of the village: the elites and local authorities i...

This study seeks to identify the social characteristics of the recruitment ofstaff to the two main local institutions of the borough of Mértola in the second half of the 18th century - the town council and the «misericórdia». Therefore, it analyses the distribution of the posts filled throughout the period under review by the various social and professional categories to which the individuals appointed to those...

A nuvem por Juno? O tema da fisiocracia na historiografia do pensamento económi...

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Níveis de Burnout, comprometimento no trabalho e satisfação profissional nas or...

O Burnout tem repercussões na satisfação no trabalho. Nesse sentido, esta investigação teve como objetivo analisar a relação entre burnout, comprometimento no trabalho e estratégias de coping dos assistentes sociais em Portugal através da avaliação de 339 profissionais, por meio de um questionário online, independentemente da população-alvo dos seus serviços e das suas respostas sociais. Os principais resultado...

Generating gravitational waveform libraries of exotic compact binaries with dee...

Current gravitational wave (GW) detections rely on the existence of libraries of theoretical waveforms. Consequently, finding new physics with GWs requires libraries of nonstandard models, which are computationally demanding. We discuss how deep learning frameworks can be used to generate new waveforms “learned” from a simulation dataset obtained, say, from numerical relativity simulations. Concretely, we use t...

Economic impact of healthcare cyber risks

Purpose: The healthcare sector is a primary target for cybercriminals, with health data breaches ranking among the most critical threats. Despite stringent penalties imposed by the U.S. Department of Health and Human Services Office for Civil Rights (OCR), vulnerabilities still persist due to slow detection and ineffective data protection measures. On the other hand, as organizations are often reluctant to disc...

Mapping saltmarsh vertical distribution communities in southern Portugal using ...

Saltmarshes, transitional coastal habitats between terrestrial and marine ecosystems, offer crucial ecological benefits, including coastal protection, biodiversity enhancement, water purification and carbon sequestration. However, saltmarsh areas are shrinking, primarily due to human activities. Traditional monitoring approaches for saltmarsh coverage are often costly and restricted in spatial scope, prompting ...

Withstanding the heat: resilience of free-living coralline algae to marine heat...

Marine heatwaves (MHWs) can severely impact benthic ecosystems, driving major ecological shifts. As they become longer, more frequent, and intense, MHWs are emerging as a dominant threat to marine biodiversity. Yet, their potential effects on coralline algal beds (CABs, including rhodolith beds), habitats of critical ecological importance, remain largely unknown. This study investigated the physiological respon...

Seagrasses in coastal wetlands of the Algarve region (southern Portugal): past ...

The global biodiversity crisis urges to update the distribution maps of natural habitats, especially those that are in rapid decline and play a key role in ecosystem functioning, such as seagrasses. In Portugal, seagrass meadows have declined substantially since the 1980s and are considered one of the most endangered marine habitats. Here we aimed to 1) compile records on the distribution and area extent of sea...

Exploring the viability of a pseudo-Nambu-Goldstone boson as ultralight dark ma...

We study a simple extension of the Standard Model featuring a dark sector with an ultralight pseudo-Nambu-Goldstone boson as a dark matter candidate. We focus on the mass range \( \mathcal{O}(10^{-20} – 10^{-10}) \text{ eV} \), relevant for strong gravity applications, and explore its production and evolution in the early Universe. The model is formulated in such a way that dark matter does not couple directly ...

A matemática na bibliotheca do povo e das escolas