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Science News Archive May 2025 - Page 7


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Cardiorespiratory effects of wildfire smoke particles can persist for months, even after a fire has ended

Exposure to lingering fine particulate matter from wildfire smoke was associated with increased hospitalization risks for various cardiorespiratory conditions, including ischemic heart disease and respiratory diseases. The study's findings highlight the need for research into the long-term health impacts of wildfire smoke.

AI-driven model supports safer and more precise blood sugar management after heart surgery

A new machine learning tool called GLUCOSE helps doctors manage blood sugar levels in patients recovering from heart surgery by recommending tailored insulin doses. The model outperformed experienced clinicians in keeping blood sugar levels within a safe range, despite using only current patient data.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·Journalnpj Digital Medicine·TypeComputational simulation/modeling·DateMay 28, 2025

National nonprofit calls on National Institutes of Health, USDA to investigate federally funded, decades-long alcohol and reproductive experiments on nonhuman primates at Oregon Health & Science University

The Physicians Committee for Responsible Medicine has filed a complaint with the National Institutes of Health and USDA, requesting an investigation into decades-long alcohol-related experiments on nonhuman primates at Oregon Health & Science University. The ongoing experiments have cost over $70 million and involve inducing binge-drin...

Yeast produces human DNase1 for the first time

Researchers at Ruhr-University Bochum successfully produced human DNase1 in yeast cells for the first time, overcoming previous challenges. The achievement could lead to a more affordable and efficient method for manufacturing this enzyme, which is currently used to treat cystic fibrosis.

SourceRuhr-University Bochum·JournalPLOS One·TypeExperimental study·DateMay 28, 2025

Do night owls decline cognitively faster than early birds?

A recent study published in The Journal of Prevention of Alzheimer's Disease found that evening people experience a greater rate of cognitive decline over time. This decline is attributed to unhealthy behaviors such as smoking and poor sleep habits, which can be mitigated by working with one's natural chronotype.

SourceUniversitair Medisch Centrum Groningen·JournalThe Journal of Prevention of Alzheimer s Disease·TypeData/statistical analysis·DateMay 28, 2025

Timing, consistency of activity linked to better fitness

A University of Florida Health study found that earlier and more consistent daily activity patterns are associated with better heart and lung fitness in older adults. The research suggests that understanding individual circadian rhythms could lead to personalized health strategies, including tailoring activity and treatment schedules.

SourceUniversity of Florida·JournalMedicine & Science in Sports & Exercise·TypeData/statistical analysis·DateMay 28, 2025

Cats recognize their owner’s scent

A study published in PLOS One found that domestic cats can discriminate between familiar and unfamiliar humans based on their odor. Cats spend longer sniffing the odor of a stranger than that of their owner, suggesting they can identify human scent patterns.

SourcePLOS·JournalPLOS One·TypeObservational study·DateMay 28, 2025

New research reveals unexpected benefit of tariffs – managers make better investment decisions

A study of firms in China found that trade shocks have a positive impact on managerial behavior, improving investment decisions and reducing inefficiencies. The researchers discovered that tariffs and sanctions concentrate managers' minds on efficiency and focus resources towards more lucrative projects.

SourceUniversity of Bath·JournalJournal of Corporate Finance·TypeData/statistical analysis·DateMay 28, 2025

Advanced protection strategy of lithium metal anodes

Researchers from Zhengzhou University present a roadmap to stabilize lithium metal anodes by tailoring electrolyte formulations and coating the anode surface. The study identifies six core strategies, including artificial SEI layers, separator regulation, and solid-state electrolytes, to enhance battery performance and safety.

SourceTsinghua University Press·JournalMaterials and Solidification·DateMay 28, 2025

GPT-4o exhibits humanlike cognitive dissonance, study finds

Researchers found GPT-4o exhibits humanlike cognitive dissonance by changing its views on Vladimir Putin after being given the illusion of choosing essay topics. The AI's responses mirror human psychology's tendency to rationalize past behaviors, highlighting the fragility of its opinions.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMay 28, 2025

Study deepens understanding of cell migration, important for potential medical advances

Researchers at the University of Maryland Baltimore County have made an important discovery about how cells move through tissues, combining mathematical modeling with advanced imaging to show that physical shape and chemical signals interact. The study's findings could inform new strategies for controlling cell movement via medical tre...

SourceUniversity of Maryland Baltimore County·JournaliScience·TypeExperimental study·DateMay 28, 2025

Even birds can’t outfly climate change

A new Yale study found that few bird species can escape the effects of climate change due to their limited migration capabilities. Despite some species being able to move northward or to higher elevations, they still experience significant temperature increases.

SourceYale University·JournalEcology and Evolution·DateMay 28, 2025

Coastal Alaska wolves exposed to high mercury concentrations from eating sea otters: research

Research reveals that Alaska wolves consuming sea otters have unprecedented mercury levels, potentially driven by climate change and coastal ecosystem changes. The study, led by University of Calgary ecotoxicology expert Ben Barst, found higher mercury concentrations in wolves from Pleasant Island compared to mainland Alaskan wolves.

SourceUniversity of Calgary·JournalScience of The Total Environment·TypeExperimental study·DateMay 28, 2025

Poop news: How does digestion affect molecular analysis of owl pellets?

A study published in Ecology and Evolution found that the digestion process of birds of prey, such as owls and hawks, can significantly impact the ratios of isotopes in their pellets and droppings. This means that previous studies relying on these samples may have inaccurate results when trying to determine an animal's diet or environm...

SourceUniversity of Cincinnati·JournalEcology and Evolution·TypeExperimental study·DateMay 27, 2025

Global warming could be driving up women’s cancer risk

A study found that rising temperatures in the Middle East and North Africa are associated with higher rates of these cancers. The prevalence of the different cancers rose by 173 to 280 cases per 100,000 people for every additional degree Celsius.

SourceFrontiers·JournalFrontiers in Public Health·TypeObservational study·DateMay 27, 2025

Less bitter, just as satiating

A recent study by the Leibniz Institute for Food Systems Biology at the Technical University of Munich shows that less bitter-tasting pea protein hydrolysates can form bioactive peptides during digestion, which induce satiety signals via bitter taste receptors. The study reveals molecular mechanisms that can be used to optimize the tas...

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalFood Chemistry·TypeExperimental study·DateMay 27, 2025

Study says original COVID-19 vaccination did not stop immune system from fighting variants

A study by researchers at the University of Arizona Health Sciences found that vaccinated people generated an overall protective immune response to Delta and Omicron strains, with slightly fewer antibodies for the mutated parts of the virus. The research suggests that immune changes due to antigenic imprinting may not be a significant ...

SourceUniversity of Arizona Health Sciences·JournalNature Immunology·TypeObservational study·DateMay 27, 2025

Frontier advances in humins research: Exploring key challenges and opportunities in biomass refining

The study systematically examines humins formation mechanisms from cellulose and hemicellulose feedstocks, highlighting the role of lignin in pseudo-lignin formation. It provides insights into factors influencing humins generation and proposes strategies for inhibition and value-added applications.