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...
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...
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...
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...
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...
Com base numa linha de investigação desenvolvida nos últimos dez anos, no presente artigo discutimos o conceito de socialização, argumentando que o mesmo se mantém fundamental para compreender as trajetórias individuais e as desigualdades sociais no contexto da globalização. Tendo por referência as teorias de autores clássicos, investi- gações realizadas desde os finais do século xx permitem atualizar e alargar...
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...
Most studies on political actors’ use of Twitter focus on content and social network analysis, but not on their motivations and passive usage. We applied a questionnaire to a significant sample of 94 Members of Parliament (MPs), with a quota sample sized by political party representation in Parliament, to survey their motivations to have or not a Twitter account and their uses. We concluded that MPs see Twitter...