The author analyzes "migration of the population in the Slovak Republic during 1980-1993. The emphasis has especially been laid upon the changes of migration tendencies...due to changed social and economic conditions." (SUMMARY IN ENG)
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Yi Chuan
January 2025
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China.
It has been more than 40 years since the beginning of exploring the genetic composition of ancient organisms from the perspective of ancient DNA. In the recent 20 years, with the development and application of high-throughput sequencing technology platforms and the improved efficiency of retrieving highly fragmented DNA molecules, ancient DNA research moved forward to a brand-new era of deep-time paleogenomics. It not only solved many controversial phylogenetic problems, enriched the migration and evolution details of various organisms including humans, but also launched exploration of the molecular responses to climate changes in terms of "whole genomic-big data-multi-species" level.
View Article and Find Full Text PDFBackground: The situation for medical education and healthcare in Sudan has been challenging for the recent years, and emigration of physicians is an ongoing problem threatening the healthcare system. We conducted this study to understand the future plans of medical students and their perceptions regarding their medical education and healthcare system.
Method: We performed this cross-sectional study at five public and private Sudanese medical schools in November 2023.
Ann Thorac Surg Short Rep
June 2024
Banner University Medical Center, Tucson, Arizona.
Mechanical valve leaflets have the potential to detach and migrate to unintended locations, leading to life- and limb-threatening situations. We report a unique case of a dislodged mechanical aortic valve leaflet in the right iliac artery bifurcation after a redo mitral valve replacement. This was promptly recognized by input from a multidisciplinary team, allowing immediate correction of the aortic valve insufficiency followed by staged retrieval of the dislodged leaflet to avoid vascular complications.
View Article and Find Full Text PDFAnn Sci
January 2025
Niels Bohr Institute, Copenhagen University, Copenhagen, Denmark.
So-called antimatter in the form of elementary particles such as positive electrons (antielectrons alias positrons) and negative protons (antiprotons) has for long been investigated by physicists. However, atoms or molecules of this exotic kind are conspicuously absent from nature. Since antimatter is believed to be symmetric with ordinary matter, the flagrant asymmetry constitutes a problem that still worries physicists and cosmologists.
View Article and Find Full Text PDFAIDS Care
January 2025
Maastricht University, Department of Work and Social Psychology, Maastricht, The Netherlands.
This study addresses disparities among people with a migration background (PMB) and those in less-urban regions, across the HIV prevention and care continuum (HIVPCC). We conducted a needs assessment and assets assessment to identify gaps between existing initiatives and persisting barriers. The research was conducted in the Euregio Meuse-Rhine (EMR), encompassing bordering regions in Belgium, Germany, and the Netherlands, and involved in-depth interviews with fifteen first-generation PMB, including nine with HIV.
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