The effect on pregnancy per artificial insemination (P/AI) of interval from induction of ovulation to timed artificial insemination (TAI) for cows submitted to a fertility program and the interval from the onset of estrous alert to artificial insemination (AI) for cows inseminated to estrous alert was analyzed in 3 experiments. In experiment 1, multiparous lactating Holstein cows (n = 1,924) from 6 herds were s...
The objective of the present study was to evaluate the effect of artificial insemination (AI) with fresh or frozen sex-sorted semen on pregnancies per AI (P/AI) in high producing dairy cows. Multiparous cows were submitted to a Presynch-Ovsynch protocol to receive their first postpartum AI or to an Ovsynch protocol to receive their second and greater service. On the day of AI, cows were randomly assigned to 1 o...
In September 2023, the UK Health Security Agency identified cases of Salmonella Saintpaul distributed across England, Scotland, and Wales, all with very low genetic diversity. Additional cases were identified in Portugal following an alert raised by the United Kingdom. Ninety-eight cases with a similar genetic sequence were identified, 93 in the United Kingdom and 5 in Portugal, of which 46% were aged under 10 ...
Recents studies suggest the existence of a European Public Sphere, especially in the face of events of significant importance. In the scope of the Covid-19 crisis, this paper aims to study the platformization of the discussion on European topics by political agents such as politicians and political parties. Focusing on four Southern European countries – Greece, Italy, Portugal, and Spain – that have a common pa...
The increasing impact of algorithmically driven processes on human societies, which can exacerbate political, economic, and cultural asymmetries, raises questions about reducing human agency by constraining platform structures. We draw on the theoretical concept of algorithmic imaginary, which captures users’ appropriations and ideas of these processes. In this paper, we focus on the dynamics between agency and...
Iberian lacustrine sediments are a valuable archive to document environmental changes since the last glacial termination, seen as key for anticipating future climate/environmental changes and their far-reaching implica -tions for generations to come. Herein, multi-proxy-based indicators of a mountain lake record from Serra da Estrela were used to reconstruct atmospheric (in)fluxes and associated climatic/enviro...
The former Article 13 (now Article 17) of the European directive on copyright and the internet (Directive EC2019/790) has been under negotiations since 2016 and was finally approved in 2019. In Portugal, however, the issue was mostly absent from public scrutiny and debate until November 2018. In that month, the issue arose to a prominent level, both in news media and in social media, following a wave of alerts ...
A pandemia provocada pela COVID-19 trouxe para um lugar de destaque a desinformação em saúde, quer ao nível direto do seu impacto e à perda de vidas humanas, quer na consciencialização das populações acerca da sua existência e da sua perigosidade. Um ano transcorrido, analisam-se comparativamente dois momentos distintos com divulgação viral de conteúdo desinformativo relacionado com a COVID-19 em Portugal: um n...
Since the North American presidential election of 2016, the role of social media on the propagation of misleading news and its instrumentalization by partisan groups has raised concerns. In this article we analyse the contents of 47 Facebook pages and 39 Facebook groups prior to the Portuguese parliamentary election of 6th of October of 2019 to track disinformation. Groups and pages to monitor were selected thr...
A sediment core collected in Caminha tidal marsh, NW Portugal, was used to assess bromine (Br) signal over the last ca. 1,700 years. The Br temporal variability reflects its close relationship with soil/sediment organic matter (OM) and also alterations in Br biogeochemical recycling in marsh environment. The highest Br enrichment in sediments was found during the Maunder Solar Minimum, a major solar event chara...