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Science News Archive December 2025 - Page 14


Page 14 of 46

Jeonbuk National University researchers reveal new interface engineering strategy for efficient and stable back-contact solar cells

Researchers at Jeonbuk National University have developed a new interface engineering strategy for back-contact solar cells, which can improve efficiency and stability. The team created a bilayer tin oxide electron transport layer that enhances interfacial contact and reduces recombination losses.

Stress-related brain signals drive risk of cardiovascular disease in people with depression and anxiety

A new study by Mass General Brigham researchers found that patients with depression are at higher risk of cardiovascular disease due to stress-related brain activity, nervous system dysregulation, and chronic inflammation. The study also suggests that addressing chronic stress, anxiety, or depression is crucial for heart health.

SourceMass General Brigham·JournalCirculation·TypeObservational study·DateDec 17, 2025

AI learns to build simple equations for complex systems

A new AI framework uncovers simple, understandable rules governing complex dynamics in nature and technology. The AI generates equations that accurately describe complex systems, revealing hidden variables that govern their behavior. This approach offers scientists a new way to leverage AI for understanding complex systems.

SourceDuke University·Journalnpj Complexity·DateDec 17, 2025

Disappointment alters brain chemistry and behavior

A mouse study by Okinawa Institute of Science and Technology researchers has found that acetylcholine release is essential for breaking habits and enabling new choices to be made. The study's findings may help understand diseases such as Parkinson's disease, addiction, and obsessive-compulsive disorder.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalNature Communications·TypeExperimental study·DateDec 17, 2025

Unveiling how sodium-ion batteries can charge faster than lithium-ion ones

Researchers found that sodium-ion batteries using hard carbon negative electrodes can reach faster charging rates than lithium-ion batteries, thanks to the pore-filling mechanism. This process is limited by the efficiency of ion aggregation within the electrode's nanopores, which requires less energy for sodium insertion.

SourceTokyo University of Science·JournalChemical Science·TypeExperimental study·DateDec 17, 2025

Can an electronic nose detect indoor mold?

Researchers developed an electronic nose that can detect and identify two common indoor mold species using nanowires. The e-nose measures changes in electrical resistance to gas molecules interacting with a sensing material, proving its potential for fast and objective monitoring of indoor air quality.

SourceWiley·JournalAdvanced Sensor Research·DateDec 17, 2025

How do childcare tax credits affect children’s long-term health?

Research found that early childhood exposure to childcare tax credits affects children's physical and mental health outcomes differently based on their mothers' educational level. Children of more-educated mothers experienced worse health outcomes, while those of less-educated mothers showed improvements.

SourceWiley·JournalHealth Economics·DateDec 17, 2025

Do natural disasters have long-term impacts on mortality in older adults?

A study analyzing Medicare claims data found that older adults who lived through Hurricane Harvey had a 3% elevated risk of dying within 1 year. Mortality risk was highest among those with chronic health conditions like Alzheimer's disease, and Black and Hispanic/Latino populations experienced higher mortality risks than other groups.

SourceWiley·JournalJournal of the American Geriatrics Society·DateDec 17, 2025

How does grandparental care affect children’s health?

Regular grandparental care can ease the pressures on parents but may have negative impacts on children's health, with some children showing poorer general health in studies of over 11,000 kids. Grandparental care also benefits parents' satisfaction rates, particularly mothers and fathers.

SourceWiley·JournalHealth Economics·DateDec 17, 2025

Single XUV pulse generation via waveform-controlled laser-plasma interaction

Researchers propose a novel scheme to produce isolated attosecond pulses using relativistic electron mirrors. This approach can compress an incoming femtosecond laser pulse into an ultra-intense extreme ultraviolet (XUV) attosecond burst, opening doors to groundbreaking applications in ultrafast science and high-resolution imaging.

SourceUltrafast Science·JournalUltrafast Science·TypeExperimental study·DateDec 16, 2025

Is aging an act of genetic sabotage for the greater good? Scientists find a gene that turns off food detection after reproduction

Researchers identified a gene that actively causes a decline in food-seeking behavior after reproduction, potentially benefiting the population by reducing competition for resources. This discovery challenges traditional views on aging and offers new insights into programmed mechanisms driving age-related decline.

SourceNagoya University·JournalAging Cell·TypeExperimental study·DateDec 16, 2025

Prospects for the development of eco-friendly dielectric insulation materials from a full life cycle sustainability perspective

Researchers are exploring ways to create green, closed-loop electrical insulation systems with excellent performance and recyclability. Bio-based monomers and mineral-based silicones are replacing petrochemical feedstocks, while advanced processing techniques enable self-healing and physicochemical recycling capabilities.

SourceResearch·JournalResearch·TypeNews article·DateDec 16, 2025

Unveiling non-thermal catalytic origin of direct current-promoted catalysis for energy-efficient transformation of greenhouse gases to valuable chemicals

Scientists established a definitive charge-driven mechanism underlying the non-thermal catalytic enhancement observed in DC-applied DRM, focusing on Pd/CeO2 as a model catalyst. The study reveals a cooperative mechanism between trapped electrons and strain-induced holes as the microscopic origin of non-thermal catalysis under DC applic...

SourceNational Institutes of Natural Sciences·JournalThe Journal of Physical Chemistry Letters·TypeExperimental study·DateDec 16, 2025

Beyond small data limitations: Transfer learning-enabled framework for predicting mechanical properties of aluminum matrix composites

Researchers developed a transfer learning-enabled framework to predict mechanical properties of particle-reinforced aluminum matrix composites. The model achieves high predictive accuracy, addressing the challenges of limited data availability in traditional machine learning algorithms.

SourceSongshan Lake Materials Laboratory·JournalMaterials Futures·DateDec 16, 2025

Living in substandard housing linked to kids’ missed schooling and poor grades

Research published in the Journal of Epidemiology & Community Health found that children living in poor quality housing missed more school days and achieved worse test scores than their peers. Improving housing conditions, especially reducing damp and overcrowding, may have significant benefits for child health and school outcomes.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·DateDec 16, 2025

Not everyone reads the room the same. A new study examines why.

A new study examines why some people excel at reading emotions from faces and context, while others struggle. The research finds that individuals use complex or simple strategies to weigh different types of information, with the latter being less cognitively demanding. This variation in integration strategies may contribute to differen...

SourceUniversity of California - Berkeley·JournalNature Communications·TypeData/statistical analysis·DateDec 16, 2025

Concurrent frailty + depression likely boost dementia risk in older people

A large international study of 220,947 participants found that concurrent physical frailty and depression significantly increase the risk of dementia. The interaction between these two factors contributes approximately 17% to the overall risk, while individual associations were found for frailty (2.5 times higher risk) and depression (...

SourceBMJ Group·JournalGeneral Psychiatry·TypeObservational study·DateDec 16, 2025

Harnessing the positive health benefits of microbes

Flinders University experts have built a world-first prototype open-access repository cataloguing microbes and natural compounds linked to positive health outcomes. The Database of Salutogenic Potential highlights the benefits of diverse environmental microbiomes and natural biochemical products in promoting health and resilience.

SourceFlinders University·JournalMicrobial Biotechnology·TypeComputational simulation/modeling·DateDec 16, 2025

SLU research shows surge in alcohol-related liver disease driving ‘deaths of despair’

New research from Saint Louis University School of Medicine shows a significant increase in deaths from alcohol-related liver disease, particularly among those without a college degree. The study highlights the need for targeted interventions to address social and economic stressors, as well as medical and behavioral risks.

SourceSaint Louis University·JournalAlcohol Clinical and Experimental Research·DateDec 16, 2025

New crystallization and microgel technology advances biohybrid brain research

Researchers developed a breakthrough technology called Cellular RedOx Spreading Shield (CROSS) to deliver long-lasting antioxidant protection to stem cells, enabling the reliable production of high-quality extracellular vesicles. This innovation strengthens neuron-glia networks and promotes structural and functional connectivity among ...

SourceUniversity of Illinois Grainger College of Engineering·JournalAdvanced Functional Materials·DateDec 16, 2025

Neutrality isn't a safe strategy on controversial issues, new research shows

A recent study by researchers at the University of Toronto found that people view neutrality on controversial issues as less moral than expressing an opposing viewpoint. Opting out completely from a conversation may be a socially successful strategy in certain situations, but context matters.

SourceUniversity of Toronto, Rotman School of Management·JournalJournal of Experimental Psychology General·TypeSurvey·DateDec 16, 2025