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Science News Archive 2021 - Page 400


Page 400 of 510

The blast that shook the ionosphere

A high-velocity atmospheric wave was generated by Beirut's 2020 ammonium nitrate explosion, rivalling those from volcanic eruptions. The blast caused electron disturbances in Earth's upper atmosphere, including changes in total electron content in the ionosphere.

SourceHokkaido University·JournalScientific Reports·DateMar 16, 2021

Is there life on Mars today and where?

Dr. Nathalie Cabrol proposes that modern life on Mars could be more widespread and accessible than previously believed, and that understanding patterns resulting from extreme environmental interactions is key to finding life. She suggests taking the approach of Mars as a biosphere to find signs of microbial habitability.

SourceSETI Institute·JournalNature Astronomy·DateMar 16, 2021

In women, higher body fat may protect against heart disease death, study shows

A new UCLA study finds that women with high muscle mass and high body fat have a greater degree of protection against heart disease-related death than those with low body fat. Meanwhile, men with high muscle mass and low body fat show a significant decrease in risk, but not as pronounced as seen in women.

SourceUniversity of California - Los Angeles Health Sciences·JournalJournal of the American Heart Association·DateMar 16, 2021

Patients value staff dedication most when evaluating substance use treatment facilities

Researchers from the University of Pennsylvania School of Medicine used machine learning to analyze online reviews of substance use treatment facilities, finding that staff dedication and professionalism were key qualities that drove patient satisfaction. The study identified 16 recurring themes in reviews, with 'dedicated staff' and '...

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of General Internal Medicine·DateMar 16, 2021

Militarization negatively influences green growth

A study of 21 OECD countries from 1980 to 2016 found that military spending hindered green economic growth. Militarization is a major consumer of non-renewable energy and causes significant air and environmental pollution. Economists recommend reducing military spending and transitioning to renewable energy sources.

SourceUral Federal University·JournalEnvironmental Science and Pollution Research·DateMar 16, 2021

Young adults in a 20-year-long study shed light on what matters for mental health of ethnic diverse youth

A 20-year-long study of Puerto Rican youth sheds light on the factors influencing mental health development, highlighting the importance of context and resilience. The study's findings have significant implications for understanding developmental psychopathology among ethnically diverse children growing up in disadvantaged contexts.

SourceElsevier·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateMar 16, 2021

Ancient bone artefact found

A rare bone point, dated between 5,300-3,800 years old, has been discovered near the Lower Murray River, providing insights into Ngarrindjeri country's material culture. The artefact, likely made from a macropod bone, was found during excavation work and is believed to have been used for piercing soft materials or as a projectile point.

SourceFlinders University·JournalAustralian Archaeology·DateMar 16, 2021

Pick up the pace!

A new study of UK Biobank participants found slow walkers have over twice the risk of contracting a severe version of COVID-19 and are almost four times more likely to die from the virus. The analysis examined body mass index (BMI) and self-reported walking pace with the risk of contracting severe COVID-19 and COVID-19 mortality.

SourceUniversity of Leicester·JournalInternational Journal of Obesity·DateMar 16, 2021