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Science News Archive 2025 - Page 131


Page 131 of 574

Free AI tools can help doctors read medical scans—safely and affordably

A new study from the University of Colorado Anschutz Medical Campus shows that free, open-source AI tools can help doctors report medical scans just as well as more expensive commercial systems without compromising patient privacy. The research highlights a promising and cost-effective alternative to widely known tools like ChatGPT.

SourceUniversity of Colorado Anschutz Medical Campus·Journalnpj Digital Medicine·DateJul 23, 2025

Collaborative initiative highlights successes and challenges in global bioethics training

A new collaborative initiative explores the impact of federally funded international bioethics training programs, highlighting both significant achievements and ongoing challenges. The study advocates for continued investment in these programs to build robust bioethics capacity worldwide and address emerging ethical dilemmas.

SourceUniversity of Pennsylvania School of Nursing·JournalJournal of Empirical Research on Human Research Ethics·DateJul 23, 2025

Colonial-era land-use changes in India led to severe decline in grassland birds, study finds

A new study found that colonial-era landscape modifications resulted in a devastating 80% loss of grassland habitat and significant declines in grassland bird populations in India's Nilgiri hills over the past 170 years. The research team analyzed historical land cover maps, bird observations, and satellite imagery to estimate baseline...

SourceCornell University·JournalGlobal Change Biology·TypeData/statistical analysis·DateJul 23, 2025

A novel AI-powered flood damage assessment

A novel AI-powered flood damage assessment using satellite imagery has been developed, achieving 74% of fully supervised performance with just 10% labeled data. The Simple Prior Attention Disaster Assessment Net (SPADANet) model improves recall by over 9% compared to existing models.

SourceThe University of Osaka·JournalInternational Journal of Disaster Risk Reduction·TypeImaging analysis·DateJul 23, 2025

Watermarks offer no defense against deepfakes

Researchers at the University of Waterloo have created a tool called UnMarker that can remove any AI image watermark, highlighting the vulnerability of this technology to deepfakes. The team's discovery shows that even invisible encoded watermarks can be destroyed without knowing their design or internal parameters.

Memories drift across neurons over time

Researchers found that map-making brain cells in the hippocampus are activated differently even when navigating a static environment, shedding light on how the brain processes spatial memories. The study's findings could have profound implications for understanding memory, learning, and aging.

SourceNorthwestern University·JournalNature·TypeExperimental study·DateJul 23, 2025

Fungicides intended to suppress turfgrass diseases may damage fairways

Researchers evaluated nine commercially available demethylation inhibitor (DMI) fungicides on annual bluegrass and creeping bentgrass fairways. The study found that two fungicides caused injury to annual bluegrass but not creeping bentgrass, while another fungicide resulted in the lowest injury on both species.

SourcePenn State·JournalInternational Turfgrass Society Research Journal·TypeExperimental study·DateJul 23, 2025

Matches in online dating illuminated in study of Czech app

A recent study of a Czech dating app analyzed heterosexual users and found that men pursue more desirable women, while mutual matches occur between those with similar desirability levels. This pattern is largely due to rejection by less desirable counterparts rather than an initial preference for similarity.

SourcePLOS·JournalPLOS One·TypeObservational study·DateJul 23, 2025

Gut cells found to 'whisper' like brain neurons: Discovery redefines how the body heals itself

Scientists discovered a precise communication system in the gut, where telocytes deliver signals directly to intestinal stem cells using fine extensions. This finding challenges long-standing assumptions about gut healing and repair, potentially leading to better treatments for conditions like IBD and colon cancer.

SourceDuke-NUS Medical School·JournalDevelopmental Cell·TypeExperimental study·DateJul 23, 2025

Children’s Hospital of Philadelphia researchers analyze best methods to minimize risk of pediatric vehicular heatstroke

A combination of technological interventions is required to prevent children from dying in overheated cars, according to a new study. The researchers identified exemplar scenarios that led to pediatric vehicular heatstroke and found that no single technology can prevent all cases.

SourceChildren's Hospital of Philadelphia·JournalAmerican Journal of Public Health·TypeData/statistical analysis·DateJul 23, 2025

Transfer printing technology for lithium protective layers to prevent battery explosions

A research team in South Korea has developed a new transfer printing technology that forms protective thin layers on lithium metal surfaces, overcoming the limitations of wet processes. The hybrid protective layers suppress dendrite growth and maintain stable cycling performance, enabling high-energy-density lithium-metal batteries.

SourceNational Research Council of Science & Technology·JournalEnergy Storage Materials·DateJul 23, 2025

Study lays groundwork for preventing dangerous falls on dry spills

Researchers developed a new testing method to assess floor slipperiness caused by dry contaminants, revealing particles like salt and flour can be just as dangerous as oil or water. The study found that even sparse layers of salt can reduce friction by up to 28%, making tile far slicker than permitted safety thresholds.

SourceUniversity of Arizona Health Sciences·JournalJournal of Forensic Sciences·TypeComputational simulation/modeling·DateJul 23, 2025

Hidden in plain sight: A century-old museum specimen turns out to be a landmark in evolution

The discovery of Palaeocampa anthrax, an armored freshwater lobopodian, reveals new insights into early animal evolution and the diversity of ancient ecosystems. The fossil's analysis confirms its status as a nonmarine species, predating previously known marine lobopodians by nearly fifty years.

Ecosystem engineers at risk: Underground maps reveal 90% of mycorrhizal fungal biodiversity hotspots lie outside protected areas

Scientists have released high-resolution maps revealing 90% of mycorrhizal fungal biodiversity hotspots outside protected areas, posing a threat to carbon drawdown and ecosystem resilience. The research highlights the critical role of mycorrhizal fungi in regulating Earth's climate and ecosystems.

SourceSPUN (Society for the Protection of Underground Networks)·JournalNature·TypeData/statistical analysis·DateJul 23, 2025

Glowing under pressure: Hinge-like mechanophores for smarter polymeric materials

Scientists create a new class of mechanochromic mechanophores that can detect and respond to mechanical stress in polymeric materials through fluorescence. The developed molecule exhibits excellent stress-sensing with high durability, offering a powerful tool for real-time monitoring of mechanical damage.

SourceInstitute of Science Tokyo·JournalAngewandte Chemie International Edition·TypeExperimental study·DateJul 23, 2025

Can seismic signals detect fragmentation of a fireball meteoroid?

Researchers successfully used seismic signals to detect the re-entry of a Hayabusa2 sample capsule and compare it with signals from natural meteoroids. The study found that intact objects had a distinct seismic signature compared to fragmented ones, providing valuable information on planetary defense strategies.

SourceSeismological Society of America·JournalSeismological Research Letters·TypeObservational study·DateJul 23, 2025

New study validates insulin nasal spray to deliver Alzheimer’s drug directly to the brain

A groundbreaking brain imaging study confirms intranasal insulin safely reaches key memory regions in older adults with Alzheimer's. The research reveals differences in uptake among individuals with early cognitive decline, paving the way for personalized treatment approaches.

SourceAtrium Health Wake Forest Baptist·JournalAlzheimer s & Dementia Translational Research & Clinical Interventions·DateJul 23, 2025

A molecular system with potential to target DNA structures associated with cancer

A team at CiQUS has created a molecule that self-assembles into fibrous materials, becoming active upon stimulation by cobalt ions. The molecule selectively binds to DNA three-way junctions, opening new opportunities for spatiotemporal control in targeted anticancer therapies.

SourceCenter for Research in Biological Chemistry and Molecular Materials (CiQUS)·JournalJournal of the American Chemical Society·DateJul 23, 2025