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Science News Archive May 2020 - Page 39


Page 39 of 42

Evolution of lions

Researchers analyzed genomic data of 20 lion specimens, including extinct cave lions from Siberia and India, finding a shared ancestor 500,000 years ago. The study suggests limited gene flow between modern lions' lineages after their divergence 70,000 years ago.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMay 4, 2020

TACC COVID-19 Twitter dataset enables social science research about pandemic

The TACC COVID-19 Twitter dataset enables researchers to analyze social media communications and identify trends in pandemic responses. The dataset, which contains over 40 million tweets, can be used for topic modeling, entity analysis, and event detection, facilitating discoveries about the spread of misinformation and racist messaging.

'Loss of pleasure' in teen sleep study

A global study of over 350,000 teens reveals that lack of sleep can lead to anhedonia, or loss of pleasure, as well as anxiety, anger, and significantly increased risk of depression. Easy interventions such as regulating screen time, delayed school starting times, and monitoring academic pressures can improve mental health.

SourceFlinders University·JournalSleep Medicine·DateMay 4, 2020

Software flaws often first reported on social media networks, PNNL researchers find

Research shows that software vulnerabilities are more likely to be discussed on social media before being reported on official databases, highlighting the potential for early warning systems. The study also found that nearly all commercial codebases contain at least one vulnerability, with an average of 64 vulnerabilities per codebase.

Study shows biocell collagen ingestion reduced signs of UVB-induced photoaging

A new study published in Journal of Functional Foods finds that daily BioCell Collagen ingestion reduces wrinkles, increases skin elasticity, and maintains hyaluronic acid content in humans. The supplement's unique matrix of hydrolyzed collagen type II peptides, chondroitin sulfate, and hyaluronic acid helps combat UVB-induced photoaging.

SourceMWWPR·JournalJournal of Functional Foods·DateMay 4, 2020

Public health training in climate change: What are prospective employers thinking?

Researchers found that 92% of employers believe public health professionals with climate change training will be in high demand in the next 5-10 years. Employers value skills such as knowledge of climate mitigation, health equity, and risk assessment. The study analyzed 16 years' worth of job postings to project future workforce needs.

SourceColumbia University's Mailman School of Public Health·JournalInternational Journal of Environmental Research and Public Health·DateMay 4, 2020

Study finds meditation and aerobic exercise relieves stress in medical school students

A study by Rutgers professor and medical student found that combining meditation with aerobic exercise reduces stress and rumination while enhancing the quality of life for medical students. The intervention, MAP Train My Brain, was developed by Shors and has shown positive outcomes in reducing stress and improving overall health.

SourceRutgers University·JournalThe Journal of Alternative and Complementary Medicine·DateMay 4, 2020

Water-splitting module a source of perpetual energy

Rice University researchers have created a self-sustaining system that splits water to produce hydrogen fuel using solar power, with an efficiency of up to 6.7%. The device uses perovskite solar cells and catalytic electrodes to convert sunlight into electricity, which drives the electrochemical reaction to produce hydrogen and oxygen.

SourceRice University·JournalACS Nano·DateMay 4, 2020

Societies issue guide to safely resume cardiovascular procedures, diagnostic tests

The American College of Cardiology has issued a framework for safely reintroducing invasive cardiovascular procedures and diagnostic tests. The document highlights the need to prioritize patients with untreated cardiovascular disease and ensure fair access to care, while also protecting patients and healthcare workers from COVID-19.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateMay 4, 2020