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Science News Archive September 2025 - Page 52


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“Major floods and droughts every 15 years” ... AI forecasts a crisis

A new study led by Professor Jonghun Kam predicts that Pakistan will experience major floods and severe droughts on a periodic basis, exacerbated by accelerating global warming. The AI model forecasts these extreme weather events every 15 years for the upper Indus River, and roughly every 11 years for surrounding rivers.

SourcePohang University of Science & Technology (POSTECH)·JournalEnvironmental Research Letters·DateSep 2, 2025

Climate change may contribute to new snakebite hotspots in India

A study suggests that climate change will shift the geographic distribution of four venomous snake species in India, leading to increased snakebite risks in certain regions. The researchers developed a snakebite risk index for Indian districts and states over the next 50 years, predicting higher risks in Northern and Northeastern states.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·TypeComputational simulation/modeling·DateSep 2, 2025

Farming strategies to protect biodiversity

Empirical evidence shows that land sharing and land sparing strategies alone are insufficient for balancing agricultural production with biodiversity conservation. Context-specific combinations of both approaches yield the best results, according to a meta-analysis published in PNAS Nexus.

SourcePNAS Nexus·JournalPNAS Nexus·DateSep 2, 2025

California program successfully scales emergency department addiction treatment statewide

The CA Bridge program successfully implemented opioid use disorder treatment services across over 80% of California's emergency departments, treating 165,000 patients with nearly 45,000 instances of buprenorphine treatment. This initiative demonstrates the potential for emergency departments to serve as critical entry points for addict...

SourceUniversity of California - Los Angeles Health Sciences·JournalHealth Affairs·TypeExperimental study·DateSep 2, 2025

Global map shows where ocean plastics pose greatest threats

A global assessment reveals that ocean plastics pose ecological risks in areas with dense marine life and pollutants, even in waters with modest plastic levels. The study identifies high-risk zones, including the North Pacific and North Atlantic oceans, where coordinated efforts can substantially lessen threats.

SourceTulane University·JournalNature Sustainability·DateSep 2, 2025

BSC creates a computational method that reveals previously hidden connections between diseases

A study by BSC-CNS analyzed molecular data from over 4,000 patients and 45 diseases using a newly developed computational method. The results show that 64% of medically known connections are related by similarities in gene expression, providing clues about the biological mechanisms linking them.

SourceBarcelona Supercomputing Center·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateSep 2, 2025

New study reveals origin of the fastest white dwarfs in the galaxy

A new study published in Nature Astronomy has discovered a clean pathway for the origin of hypervelocity white dwarfs, which are stars hurtling through space at speeds exceeding 2000 km/s. The research reveals a dramatic sequence of events involving a merger between two rare hybrid helium–carbon–oxygen white dwarfs.

SourceTechnion-Israel Institute of Technology·JournalNature Astronomy·TypeComputational simulation/modeling·DateSep 2, 2025

Advances in ultrasound drive gains in prenatal heart defect detection, but regional gaps remain

The study found that detection rates of congenital heart disease have improved due to advances in ultrasound screening practices, with added specific views helping detect more defects before birth. However, detection rates still vary by region and type of defect, highlighting the need for continued improvements in prenatal care.

SourceThe Society of Thoracic Surgeons·JournalAnnals of Thoracic Surgery·DateSep 2, 2025

SeoulTech scientists develop ultra-lightweight memory manager that transforms embedded system performance

Researchers at Seoul National University of Science & Technology developed LWMalloc, a lightweight and high-performance dynamic memory allocator for resource-constrained environments. The new allocator outperforms ptmalloc by achieving up to 53% faster execution time and 23% lower memory usage.

SourceSeoul National University of Science & Technology·JournalIEEE Internet of Things Journal·TypeComputational simulation/modeling·DateSep 2, 2025

Removing yellow stains from fabric with blue light

A team of researchers has developed a method to remove yellow stains from fabric using high-intensity blue LED light, which is more sustainable than traditional bleaching methods. The technique, which utilizes ambient oxygen as an oxidizing agent, successfully removed stains from multiple fabrics, including silk and polyester.

SourceAmerican Chemical Society·JournalACS Sustainable Chemistry & Engineering·DateSep 2, 2025

New study links exosomes to biological aging

Researchers found that exosomes from senescent cells and circulatory exosomes carry molecular signatures associated with biological aging and cellular senescence. These signatures include proteins, lipids, and microRNAs linked to inflammation, oxidative stress, and tissue remodeling.

SourceImpact Journals LLC·JournalAging-US·TypeNews article·DateSep 2, 2025

Physics origin of universal unusual magnetoresistance

Researchers provide experimental evidence for universal unusual magnetoresistance, attributing it to interfacial electron scattering governed by magnetization and electric field. The two-vector magnetoresistance model offers a unified framework for understanding magnetoresistance in diverse spintronic systems.

SourceScience China Press·JournalNational Science Review·DateSep 2, 2025

Deforestation reduces rainfall by 74% and increases temperatures by 16% in the Amazon during the dry season, study says

Researchers found that deforestation is responsible for a significant reduction in rainfall and increase in temperature in the Amazon during the dry season. The study quantifies the impact of forest loss and global climate change on the biome, highlighting the importance of preserving standing forests to maintain climate resilience.

Alzheimer’s erodes brain cells’ control of gene expression, undermining function, cognition

A new study reveals that Alzheimer's progression is characterized by a breakdown of epigenomic stability, leading to compromised compartmentalization and the loss of gene regulation. The research provides insights into the molecular mechanisms driving disease progression and resilience, shedding light on potential new treatments.

SourcePicower Institute at MIT·JournalCell·TypeExperimental study·DateSep 2, 2025

KAIST unlocks the secret of next-generation memory​

Researchers at KAIST have precisely clarified the operating principle of an oxide-based memory device using a multi-modal scanning probe microscope. The study reveals that oxygen defects determine the on/off state of the memory and confirms that electronic behavior also plays a role in its resistance changes.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalACS Applied Materials & Interfaces·TypeMeta-analysis·DateSep 2, 2025

A tomato line that’s ripe for the picking

Researchers from USDA's Agricultural Research Service have discovered a tomato line with good resistance to the emerging tomato brown rugose fruit virus (ToBRFV). The virus can cause significant yield loss in tomato crops worldwide. Developing resistant cultivars is crucial for controlling ToBRFV and ensuring a stable food supply.

SourceUS Department of Agriculture - Agricultural Research Service·JournalPlant Biotechnology·TypeExperimental study·DateSep 2, 2025

Therapeutic potential for PEPITEM in osteoporosis

Researchers from the University of Birmingham identified bioactive peptide sequences in PEPITEM that counteract key changes caused by osteoporosis. The study shows the full PEPITEM molecule reduces bone resorption, increases bone formation, and promotes angiogenesis in bone.

SourceUniversity of Birmingham·JournalBiomedicine & Pharmacotherapy·TypeExperimental study·DateSep 2, 2025

Single-cell transcriptomics unlocks new pathways in liver injury and repair

Researchers used single-cell transcriptomics to study liver injury and repair. They found that hepatocytes can migrate to damaged areas, and that hepatic stellate cells play a dual role in contributing to fibrosis and supporting regeneration. Endothelial cells regulate regenerative signaling, and macrophages exhibit heterogeneity durin...

SourceFirst Hospital of Jilin University·JournaleGastroenterology·DateSep 2, 2025

Young people more willing to commit insurance fraud

A new study from the University of Georgia found that young adults under 34 are more likely to engage in insurance fraud, with only 5% of those 55 and older signaling acceptance. The researchers attribute this to younger generations' carefree attitudes and lack of understanding about what constitutes fraudulent behavior.

SourceUniversity of Georgia·JournalJournal of Consumer Affairs·DateSep 2, 2025

Magnetic fields in the infant universe may have been billions of times weaker than a fridge magnet

A team of scientists used over 250,000 computer simulations to study the cosmic web and understand the influence of primordial magnetic fields. They found that these fields may have been billions of times weaker than a small fridge magnet, yet their traces still remain in the universe.

SourceScuola Internazionale Superiore di Studi Avanzati·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateSep 2, 2025

Immigrant CEOs linked to significant reduction in corporate irresponsibility in their home countries

A recent study finds that appointing an immigrant CEO can dramatically reduce the incidence of corporate social irresponsibility (CSI) in their home countries. The research highlights how a leader's personal ties and social networks abroad influence where—and how often—multinational enterprises engage in harmful practices.

SourceStrategic Management Society·JournalStrategic Management Journal·TypeData/statistical analysis·DateSep 2, 2025

Women earn 25% less than men in wealthy households, finds study

A new analysis of the gender pay gap in the UK reveals that women in wealthier households earn 25% less than men, while those in poorer households experience a smaller 4% gap. The study highlights the importance of addressing societal penalties for being female and improving job quality to reduce the pay gap.

SourceCity St George’s, University of London·JournalCambridge Journal of Economics·TypeData/statistical analysis·DateSep 2, 2025

2024 Outstanding Article Award winner selected (published in MRE volume 39 [2024])

Researchers Y. Allen Chen and Alan C. Haynie win the 2024 Outstanding Article Award for their novel study on size-targeting in the U.S. Bering Sea pollock catcher/processor fishery. The analysis reveals that size-based management can generate gains in harvest outcomes and stock biomass, particularly in years of low pollock abundance.

SourceUniversity of Chicago Press Journals·JournalMarine Resource Economics·DateSep 2, 2025

Bite by bite: How jaws drove fish evolution

A University of Michigan study shows that lobe-finned fishes experienced rapid jaw innovation and evolution between 359-423 million years ago, while ray-finned fishes evolved more slowly. This finding highlights the importance of ancient fossil records in understanding vertebrate evolution.

SourceUniversity of Michigan·JournalCurrent Biology·DateSep 2, 2025

Geometry revealed at the heart of quantum matter

A UNIGE team reveals a previously theoretical geometry that distorts electron trajectories in certain materials, revealing its presence through observation under intense magnetic fields. This discovery opens up new avenues for exploring and harnessing quantum geometry in various materials with major implications for future electronics.

SourceUniversité de Genève·JournalScience·TypeNews article·DateSep 2, 2025