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Science News Archive 2021 - Page 462


Page 462 of 510

Study links brain cells to depression

A new study found a reduced number of astrocytes in the brains of depressed adults compared to non-depressed individuals. The study suggests that targeting these cells may lead to improved treatment options for depression.

SourceFrontiers·JournalFrontiers in Psychiatry·DateFeb 4, 2021

Studies use mathematics to analyze the semantics of dream reports during the pandemic

A study published in PLOS ONE analyzed dream reports from 67 subjects produced during the pandemic, finding a higher prevalence of negative emotions and terms related to cleanliness and contamination. The researchers used natural language processing tools and mathematics to extract semantics, highlighting the continuity between dreams ...

Nickel phosphide nanoparticle catalyst is the full package

Researchers at Osaka University have developed a stable and reusable nickel phosphide nanoparticle catalyst that exhibits high activity and selectivity in the hydrogenation of glucose to sorbitol. The catalyst produces D-sorbitol with yields over 99%, making it suitable for sustainable, low-cost production in various industries.

SourceOsaka University·JournalGreen Chemistry·DateFeb 4, 2021

How metal atoms can arrange themselves on an insulator

Researchers at Bielefeld University have successfully arranged individual metal atoms on an insulator surface at room temperature. The ordered structure is created because the molybdenum acetate molecules align precisely with the charge distribution on the calcite surface, firmly anchoring them in place.

SourceBielefeld University·JournalNature Communications·DateFeb 4, 2021

Clients of female sex workers should be targeted for HIV prevention and treatment in South Africa

A new study in South Africa found that male clients of female sex workers contribute significantly to HIV transmission, with a rate of 6.9% over a decade. Increasing treatment among these individuals could reduce transmission by up to five times, making them a key focus for HIV prevention and treatment efforts.

SourceUniversity of Bristol·JournalJournal of the International AIDS Society·DateFeb 4, 2021

The Lancet Public Health: Weekly testing and two-week isolation most cost-effective strategy to control spread of COVID-19 in high transmission areas, US study suggests

A US study published in The Lancet Public Health journal suggests that weekly COVID-19 testing with a two-week isolation period is the most cost-effective strategy to mitigate the spread of the virus in high-transmission areas. Monthly testing and one-week isolation are more cost-effective when transmission rates are low to moderate.

SourceThe Lancet·JournalThe Lancet Public Health·DateFeb 4, 2021

Book developed at Cincinnati Children's helps identify risks of reading difficulties

A new screening tool, The Reading House (TRH), assesses early literacy skills in preschool-age children and has been validated as a potential identifier of reading difficulties. TRH measures core skills predictive of reading success and identifies relationships between screened skills and early brain development in the brain.

Human immune cells have natural alarm system against HIV

Researchers at WashU Medicine have identified a potential way to eradicate latent HIV infection by triggering a natural alarm system in human immune cells. The strategy targets the activity of a specific HIV protein, rather than its appearance, and has shown promise with certain drugs that force the protein to become active.

SourceWashU Medicine·JournalScience·DateFeb 4, 2021

Help for borderline personality disorder

A new study found that people with BPD are becoming more knowledgeable about the disorder and available treatments, but may still face significant challenges in finding appropriate help. Experts highlight the need for improved services, including public subsidies for specialized services and increased training for health professionals.

SourceFlinders University·JournalJournal of Psychiatric and Mental Health Nursing·DateFeb 4, 2021

Even in same desert location, species experience differences in exposure to climate warming

A new study reveals that despite living in the same Mojave Desert location, mammal and bird communities experience different exposures to climate warming. Small mammals have remained relatively stable, while bird occupancy and species richness have declined dramatically due to their limited ability to mitigate rising temperatures.

Spicy perfection isn't to prevent infection

A new study from Australian National University suggests that spicy foods are more commonly used in hot climates, but finds no clear reason for this trend. The researchers analyzed over 33,000 recipes and found a significant relationship between spice use and life expectancy, as well as other health outcomes.

SourceAustralian National University·JournalNature Human Behaviour·DateFeb 4, 2021