127 documents found, page 1 of 13

Tumor de colisão renal: estudo de caso

A incidência de tumores renais tem vindo a aumentar e a sua classificação tem sofrido alterações, surgindo novos subtipos devido à elevada complexidade histológica do órgão, rico em tecidos provenientes de diferentes linhas celulares. Os tumores de colisão renal são raros e provêm de diferentes linhas celulares que se fundem numa massa única, situação facilitada pela proximidade espacial. Os subtipos de tumores...

Hamartoma esplénico: estudo de caso

O hamartoma esplénico é um tumor vascular benigno raro , com uma taxa de incidência de 2,7%, e de difícil diagnóstico pré-operatório, podendo mimetizar neoplasias malignas. São inicialmente assintomáticos, podendo o seu crescimento resultar na compressão de estruturas adjacentes e gerar dor, hiperesplenismo ou rutura do órgão, sendo por isso recomendada a sua remoção cirúrgica. Pode manifestar-se como nódulo ún...

X-chromosomal STRs: Metapopulations and mutation rates

The analysis of STRs located on the X chromosome has been one of the strategies used to address complex kinship cases. Its usefulness is, however, limited by the low availability of population haplotype frequency data and lack of knowledge on the probability of mutations. Due to the large amount of data required to obtain reliable estimates, it is important to investigate the possibility of grouping data from p...

X-chromosomal STRs: Metapopulations and mutation rates

The analysis of STRs located on the X chromosome has been one of the strategies used to address complex kinship cases. Its usefulness is, however, limited by the low availability of population haplotype frequency data and lack of knowledge on the probability of mutations. Due to the large amount of data required to obtain reliable estimates, it is important to investigate the possibility of grouping data from p...

Is insolvency gendered? An analysis of personal debtors’ profiles in Portugal, ...

Household indebtedness is a phenomenon that cuts across capitalist economies. Women and men face different challenges. The cross-cutting nature of this event can be best understood by an in-depth analysis of social and economic factors contributing to a greater predisposition to situations of imminent insolvency. By developing a statistical analysis of a sample of 641 court decisions in insolvency proceedings f...

Effect of TPMS reinforcement on the mechanical properties of aluminium–alumina ...

Triply Periodic Minimal Surface (TPMS)-based aluminium–alumina Interpenetrating Phase Composites (IPCs) manufactured through the combination of Additive Manufacturing (AM) and investment casting are explored in this study. Multiple alumina TPMS structures (Gyroid, Diamond, and Primitive) with different geometries and volume fractions were designed and fabricated using Digital Light Processing (DLP) AM technolog...

Indicadores de higiene e biocidas em superfícies do ambiente de preparação e di...

Avaliação da Higiene de Superfícies em Unidades de Restauração Coletiva e a Rel...

Bursting the (filter) bubble: Interactions of members of parliament on Twitter

Western European representative democracy models are strongly party-based, generating different incentives for political actors’ communication. Using Portugal as an example, our study analyzes if and how Portuguese Members of Parliament (MPs) interact on twitter, studying their interactions with 757 twitter accounts during one week in four different months. Our study concludes that, although more than half of t...

What do Portuguese MPs use Twitter for? A case study on political communication...

Portugal has the lowest Twitter usage rate in Western Europe and a political system that does not incentivize direct contact with voters. So, what do Portuguese MPs use Twitter for? We collected and manually coded 2,192 tweets from MPs. Our analysis shows that MPs use Twitter mainly as a business tool to serve a niche, the Twitter elite. Twitter is used significantly more often by male MPs, from small and non-c...