The combined actions of climatic variations and landscape barriers shape the history of natural populations. When organisms follow their shifting niches, obstacles in the landscape can lead to the splitting of populations, on which evolution will then act independently. When two such populations are reunited, secondary contact occurs in a broad range of admixture patterns, from narrow hybrid zones to the comple...
The climate fluctuations of the Quaternary shaped the movement of species in and out of glacial refugia. In Europe, the majority of species followed one of the described traditional postglacial recolonization routes from the southern peninsulas towards the north. Like most organisms, barn owls are assumed to have colonized the British Isles by crossing over Doggerland, a land bridge that connected Britain to no...
Islands, and the particular organisms that populate them, have long fascinated biologists. Due to their isolation, islands offer unique opportunities to study the effect of neutral and adaptive mechanisms in determining genomic and phenotypical divergence. In the Canary Islands, an archipelago rich in endemics, the barn owl (Tyto alba), present in all the islands, is thought to have diverged into a subspecies (...
The number of older adults have increased considerably in the last years, as well as the number of obese older adults is also on the rise. Aim: The aim of this study was to evaluate the changes in body composition of older adults after 3, 6, and 12 months of bariatric surgery. Materials and Methods: A historical cohort of 35 older adults (62.35±1.47 years) who underwent bariatric surgery took part in this study...
Abstract: Tobacco consumption and environmental tobacco smoke (ETS) exposure remains an important public health concern. Pregnant women require particular attention as active and passive smoking during pregnancy are associated with multiple adverse perinatal outcomes. This study aimed to biochemically validate self-reported smoking and ETS exposure status among pregnant women, to more precisely ascertain its as...
O tabagismo e a exposição ao fumo ambiental do tabaco (ou exposição passiva) estão associados a vários efeitos adversos na saúde, particularmente em períodos de maior suscetibilidade como o período pré-natal. Como condição essencial para o delineamento de estratégias mais adequadas e efetivas de promoção de saúde e prevenção de doença associadas, torna-se essencial caracterizar detalhadamente a exposição ao tab...
We live in a world characterized by biodiversity loss and global environmental change. The extinction of large carnivores can have ramifying effects on ecosystems like an uncontrolled increase in wild herbivores, which in turn can have knock-on impacts on vegetation regeneration and communities. Cheetahs (Acinonyx jubatus) serve important ecosystem functions as apex predators; yet, they are quickly heading towa...
O consumo de chocolates e produtos de cacau está crescendo anualmente. Ao mesmo tempo, diversos estudos demonstram possíveis contaminações de metais pesados nestes produtos, oriundo das matérias-primas ou etapas do processo, preocupando indústrias e consumidores. Este trabalho analisou a influência das etapas de mistura e moagem durante a fabricação de Recheios Sabor Chocolate em relação à presença de arsênio, ...
Objective: To evaluate the success rate of external cephalic version, predictive factors for success of this maneuver and to examine how it affects mode of delivery, pregnancy and neonatal outcome rates. Study design: Retrospective cross-sectional study performed in a tertiary care university hospital between January 2002 and June 2018. A total of 324 ECVs were performed in 321 pregnancies. Maternal and ultraso...
This essay is an attempt at rewriting Sherwood Anderson’s somewhat enigmatic short story from a mythological and Jungian perspective. It is an expression of the thoughts inspired by the story, and a possible interpretation of the author’s original words.