They are tiny particles, with potentially enormous human consequences. Researchers at Aarhus University have discovered a defect in the way cells form what are known as exosomes, and this defect is associated with a mutation found in some people living with dementia. The discovery may offer new insights into how Alzheimer’s develops and potentially point…
Solar flares, one of the most intense explosive phenomena in the solar atmosphere, release large amounts of energy in a short period, resulting in increased electromagnetic radiation in multiple bands. These events pose significant threats to Earth’s space environment and human activities in space. High-energy electrons accelerated during flares emit millimeter-wave radiation via gyrosynchrotron radiation,…
Archaeologists in France have discovered a Roman period cremation tomb richly furnished with silver coins, gold jewelry and a ring with the inscription of what is probably the surname of the deceased. The tomb was unexpectedly found during excavations at a medieval settlement in Lamonzie-Saint-Martin, a small town in southwestern France. As archaeologists excavated beneath…
Investments in agricultural land by domestic and international investors have the potential to support sustainable development. However, if investments and the legal frameworks that govern them are not carefully and equitably structured, these projects can cause significant social and environmental degradation and further exacerbate climate change. These opportunities and risks will increase as demand for…
Until the end of the 20th century, there was no truly universal standard. According to our current definition, everyone agrees on what “one meter” is. Continue reading Start with a bang! » #meter #meter #long
In about a decade, total water demand will exceed available supply globally. This will be a difficult problem for decision-makers and regulators, what Sir James Bevan, chief executive of Environment Agency England, calls “the jaws of death”. London, along with many other major cities around the world, will be severely affected. It will not be…
Snake bites by Bothrops taeniatus: characteristics of the bites of a rare venomous snake in Brazil ABSTRACT Bites from snakes of the genus. bothrops They account for up to 90% of venomous snake bites in Brazil. Among these species, Bothrops taeniatus It is considered uncommon in Brazil, with only one case reported in the literature….
On a dry day in Madagascar, hissing cockroaches do something unexpectedly sweet: They huddle together in groups of slow-moving cockroaches. A new study in Ethology shows that these groups are not random social moments: they are a survival strategy caused by humidity that helps prevent large insects from drying out. “The main conclusion of our…
In a scene that could be straight out of a Pixar movie, two adorable robots crawled across a simulated moon surface in search of water. One rover even looks a bit like WALL-E. However, the excursion is not for entertainment. It’s a recent simulation at DLR (the German space agency) that tries to help the…
Our staff’s favorite books of the year reflected on the role of science in some of society’s most pressing problems, from artificial intelligence to childhood trauma to river restoration. Did we miss your favorite? Let us know at feedback@sciencenews.org. rehabilitation Walter ShoshanaSimon and Schuster | $29.99 In a journalist’s exposé of America’s drug treatment centers,…