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Science News for October 2, 2020


A putative mechanism that switches brain pathology from anxiety to depression discovered

Researchers discovered a novel brain mechanism that links anxiety and depression, showing unique cellular mechanisms activate as one pathology progresses into another. The 'switch' involves astrocytes and cytoskeletal mechanisms, which may be targeted for new classes of psychotropic drugs.

SourceSt. Petersburg State University·JournalProgress in Neuro-Psychopharmacology and Biological Psychiatry·DateOct 2, 2020

Face masks unlikely to cause over-exposure to CO2, even in patients with lung disease

A study published in the Annals of the American Thoracic Society found that wearing face masks has minimal impact on gas exchange in healthy individuals and those with severe lung impairment. The researchers stress the importance of wearing masks to prevent COVID-19 infection, especially for patients with lung disease.

SourceAmerican Thoracic Society·JournalAnnals of the American Thoracic Society·DateOct 2, 2020

Subsidized cars help low-income families economically, socially

A study published in the Journal of Planning Education and Research found that subsidized car ownership has a transformative impact on low-income families, allowing them to access better education, healthcare, and employment opportunities. The research also highlighted the importance of considering the broader social benefits of car ow...

SourceCornell University·JournalJournal of Planning Education and Research·DateOct 2, 2020

Future climate changes in nature reserves

A new study examines the effects of future climate change on over 137,000 nature reserves worldwide, revealing severe local impacts, especially in tropical countries. The research highlights the importance of informed management to mitigate climate change effects and preserve biodiversity.

SourceUniversität Bayreuth·JournalDiversity and Distributions·DateOct 2, 2020

Smartphone surveys find a connection between daily spiritual experiences and well-being

Researchers found a connection between daily spiritual experiences and overall well-being, with both stable and fluctuating experiences contributing to mental well-being. Daily spiritual experiences, such as feeling God's presence or inner peace, were associated with lower depressive symptoms and higher levels of flourishing.

SourceBaylor University·JournalInternational Journal for the Psychology of Religion·DateOct 2, 2020

Study highlights shortcomings in telemedicine despite large increases in remote consults during COVID-19 pandemic

A new study found that despite increased telemedicine use, the number of primary care consultations fell by over 21% in the second quarter of 2020. This drop was accompanied by a significant decline in blood pressure and cholesterol checks, which are crucial for detecting cardiovascular disease risks.

Potential new tool for frost screening in crops

Agricultural scientists at the University of Adelaide have identified a potential new tool for screening cereal crops for frost damage using terahertz imaging technology. The non-destructive method was found to successfully screen barley plants for frost damage, with individual grain positions along the spike also detectable.

SourceUniversity of Adelaide·JournalOptics Express·DateOct 2, 2020

Awakening after a sleeping pill

A patient with akinetic mutism, a rare condition causing temporary paralysis and speech absence, experiences a remarkable recovery after taking a sleeping pill. Brain scans reveal overactive brain regions that can be suppressed by the medication, allowing for temporary speech and movement.

Biomedical sciences researchers find new way to prevent and cure rotavirus, other viral infections

Biomedical researchers at Georgia State University have identified a novel method for eradicating rotavirus and other viral infections using interleukin-18 and interleukin-22. The study shows that these cytokines can rapidly and completely eliminate viruses from intestinal epithelial cells, even in compromised immune systems.

SourceGeorgia State University·JournalScience Immunology·DateOct 2, 2020

Nitric oxide a possible treatment for COVID-19

A study by Uppsala University researchers suggests that nitric oxide may be an effective treatment for COVID-19, with antiviral properties that inhibit the replication of the SARS-CoV-2 virus. The compound is produced naturally in the body and has been shown to reduce inflammation and boost blood-oxygen saturation levels.

SourceUppsala University·JournalRedox Biology·DateOct 2, 2020

Enhancing blood sugar control boosts brain health for people with type 2 diabetes

Controlling blood sugar levels boosts cognitive function, including thinking, learning, and remembering. However, more weight loss and exercise only improve executive function skills, while verbal learning and memory decline. Effective management of type 2 diabetes is crucial to offset its negative effects on brain health.

SourcePennington Biomedical Research Center·JournalThe Journal of Clinical Endocrinology & Metabolism·DateOct 2, 2020

Fuelling the energy revolution

A German chemist is researching green hydrogen production using sunlight to meet the EU's climate targets. The goal is to replace fossil-based raw materials with sustainable green hydrogen for transportation, industry, and heating, aiming to become a global leader in this field by 2035.

Searching for the chemistry of life

A study by DESY's X-ray source PETRA III reveals that dry heating can form characteristic DNA base pairs without water or solvents. The team observed the formation of adenine-thymine and guanine-cytosine pairs at temperatures between 100-200 degrees Celsius, suggesting a possible alternative route to molecular recognition patterns in DNA.

SourceDeutsches Elektronen-Synchrotron DESY·JournalChemical Communications·DateOct 2, 2020

How speech propels pathogens

Researchers discovered that speech generates conical airflow that can travel up to 2 meters in 30 seconds, emphasizing the importance of time and distance in transmission. Saliva filaments form on the lips during consonant sounds, breaking into microscopic droplets that spread pathogens.

SourceCNRS·JournalProceedings of the National Academy of Sciences·DateOct 2, 2020