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Evolution of the Danube River's islands on the Bulgaria-Romania border over the last century.
PLoS One
January 2025
Faculty of Geography, University of Bucharest, Bucharest, Romania.
The border line between Bulgaria and Romania was established a century ago on the Danube River's thalweg, going around islands. Over time, islands migrated; to avoid conflicts, islands located on the border line are declared neutral territory by both countries and they exit from use. In this context, the paper aims to draw conclusions on the spatial dynamics of the Danube River's sandy islands along the Bulgaria-Romania border.
View Article and Find Full Text PDFLatitudinal cline of ocean dependence in a diadromous fish.
Proc Biol Sci
January 2025
Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.
Article Synopsis
- Diadromous fishes show a pattern of reliance on oceans in high latitudes versus rivers in low latitudes, driven by differences in aquatic productivity.
- Research suggests that migratory salmonids exhibit greater ocean dependency and weight gain at higher latitudes, while freshwater growth decreases with latitude.
- These findings highlight variations in life history among salmonid migrants and suggest the existing definition of anadromy might not adequately reflect the complexities of river-ocean migration.
Youth Migration in Low-income Countries: Who is Going to Provide Care for the Frail Older Adults?
J Frailty Sarcopenia Falls
December 2024
National Clinical Research Center for Geriatric Diseases, Department of Geriatrics, Xuanwu Hospital of Capital Medical University, Beijing, China.
Phytochemicals in Cancer Chemoprevention: Preclinical and Clinical Studies.
Cancer Control
December 2024
Department of Biotechnology, Kathmandu University, Dhulikhel, Nepal.
Phytochemicals, chemicals from plants, have garnered huge attention for their potential ability to prevent cancer. In vivo and preclinical models show that they do so often by affecting the hallmarks of cancer. Phytochemicals affect key pathways involved in the survival, genome maintenance, proliferation, senescence, and transendothelial migration of cancer cells.
View Article and Find Full Text PDFAgainst the grain: International migrants, the children of migrants and national life expectancy in Sweden, 1990-2019.
SSM Popul Health
December 2024
Stockholm University Demography Unit, Stockholm University, Universitetsvägen 10B, Stockholm, S106-91, Sweden.
Article Synopsis
- International migrants and their children are becoming a larger part of the populations in host countries, affecting national mortality estimates, but limited studies have quantified their impact on life expectancy.* -
- This research focuses on Sweden, using demographic methods to analyze how the mortality of first-generation migrants initially negatively impacts life expectancy, which changes over time as the migrant population shifts in origin.* -
- The findings reveal that while first-generation migrants initially lower life expectancy, this effect diminishes; however, the children of migrants show a consistently negative impact across ages and backgrounds, indicating a need for separate mortality monitoring.*
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