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Science News Archive September 2025 - Page 39


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Combined alcohol and cannabis use linked to adverse consequences in young adults, York U led study finds

A new longitudinal study by York University found that young adults using both substances in times of high stress and emotional distress reported more negative life consequences. The study suggests that understanding combined use can help young adults mitigate the risk and seek healthier coping mechanisms.

SourceYork University·JournalAlcohol Clinical and Experimental Research·TypeSurvey·DateSep 9, 2025

Mapping causality in neuronal activity: towards a better understanding of brain networks

Researchers developed a method to identify causal relationships between neurons solely based on spike train data, providing a new tool for understanding brain connectivity. The approach accurately detected bidirectional and unidirectional coupling between neurons, even in the presence of internal noise.

SourceTokyo University of Science·JournalPhysical Review E·TypeData/statistical analysis·DateSep 9, 2025

Studies find nonprofits' use of flexible labor negatively affects operational outcomes, lacks long-term financial benefit, study finds

New research from the University of Kansas found that nonprofits' increasing reliance on flexible labor leads to negative operational outcomes, such as reduced attendance at events. While short-term financial benefits may be achieved, there is no long-term fiscal improvement for these organizations.

SourceUniversity of Kansas·JournalNonprofit Management and Leadership·TypeMeta-analysis·DateSep 9, 2025

Indiana University and Instructure receive NSF funding to develop TOPSAIL, the first-of-its-kind infrastructure for testing AI tools in education

TOPSAIL aims to make it faster and easier to evaluate new AI tools in education. The two-year planning project will establish a new paradigm for evidence-based adoption of AI technologies, grounded in rigorous psychological science and learning theory. The testbed will provide robust privacy protections and experimental controls.

Creating a top-tier, high-density W single atom catalyst

Researchers at Tohoku University have created a high-density W single atom catalyst that significantly speeds up the oxygen evolution reaction, overcoming a key barrier in environmentally friendly technologies. The stable incorporation of tungsten into transition-metal hydroxides/oxides enables ultrathin structures with enhanced active...

SourceAdvanced Institute for Materials Research (AIMR), Tohoku University·JournalJournal of the American Chemical Society·DateSep 9, 2025

More than echolocation: Bats use both sight and sound to hunt more efficiently in light

In a study published in PNAS, scientists found that common noctule bats reduce echolocation calls when hunting in brighter environments but catch prey up to 50% faster. The bats use both acoustic and visual information to track and catch escaping prey during split-second interactions.

SourceLeibniz Institute for Zoo and Wildlife Research (IZW)·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 9, 2025

New global database opens the door for better understanding of terrestrial ecosystem productivity

A new study and database provide an unprecedented resource for understanding Earth's land systems, including net primary production (NPP) and its role in carbon cycling. The database addresses methodological limitations of previous databases, offering harmonized NPP measurements across six major biome types and spanning all continents.

Can a healthy gut microbiome help prevent childhood stunting?

Researchers found that children with stable gut microbiomes tend to have better growth outcomes. The study created the first-ever pediatric undernutrition microbial genome catalog, which can predict and prevent malnutrition. This discovery opens the door to new diagnostics and therapeutics for addressing global child stunting issues.

SourceSalk Institute·JournalCell·DateSep 9, 2025

Freeze-drying preserves sulfonated lignin’s functional integrity, new study finds

Researchers found that freeze-drying preserves sulfoethylated kraft lignin's functional integrity, maintaining charge density, solubility, and sulfonic acid groups. Oven drying compromised performance, triggering chemical changes that reduced solubility and increased glass transition temperature.

SourceJournal of Bioresources and Bioproducts·JournalJournal of Bioresources and Bioproducts·TypeExperimental study·DateSep 9, 2025

Electric car sharing and smart charging

A study by Empa researchers found that electric car sharing can reduce emissions by up to 82%, but achieving cost savings and low-emission charging simultaneously is rare. The optimal charging strategy would require real-time tariff models, automated systems, and incentives like CO₂ prices.

SourceSwiss Federal Laboratories for Materials Science and Technology (Empa)·JournalEnvironmental Science & Technology·TypeComputational simulation/modeling·DateSep 9, 2025

Closing the care gap: IOF position paper identifies barriers and solutions to global undertreatment of osteoporosis

The International Osteoporosis Foundation identifies critical global barriers to osteoporosis care, including limited DXA scanning and outdated treatment criteria. The IOF advocates for a paradigm shift in bone health management worldwide, recognizing high fracture risk as a valid criterion for treatment and reimbursement.

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·TypeLiterature review·DateSep 9, 2025

Chinese researchers develop assembloid model to decode adenomyosis pathogenesis

A team of Chinese researchers has developed an assembloid model that mimics the physiological structure of endometrium and adenomyotic lesions, recapitulating transcriptional features consistent with in vivo tissue. The novel system reveals abnormal composition of stromal cell subpopulations during the secretory-like phase may disrupt ...

SourceScience China Press·JournalScience China Life Sciences·TypeExperimental study·DateSep 9, 2025

Innovative ultrasonic regeneration restores nano-phase change emulsions for low-temperature applications

Researchers developed a high-energy ultrasonic regeneration strategy to restore nano-phase change emulsion performance under low-temperature conditions. This innovation enhances the stability of phase change emulsions, unlocking their full potential for thermal energy storage and cold-chain logistics applications.

SourceIndustrial Chemistry & Materials·JournalIndustrial Chemistry and Materials·TypeExperimental study·DateSep 9, 2025

University of Minnesota Medical School research team awarded 5-year, $3.3 million NIH grant for first-of-its-kind study of infants born with CMV

A University of Minnesota Medical School research team has launched a groundbreaking study on infants born with congenital cytomegalovirus (cCMV). The five-year, $3.3 million grant will track the development of 200 infants over three years to better understand the virus's impact on long-term health and inform medical providers' clinica...

High consumption of ultra-processed foods linked to systemic inflammation

High consumption of ultra-processed foods is associated with higher levels of systemic inflammation and a greater risk of cardiovascular disease. The study found that individuals who consumed the most ultra-processed foods had significantly higher levels of high-sensitivity C-reactive protein, a key marker of inflammation.

SourceFlorida Atlantic University·JournalThe American Journal of Medicine·TypeMeta-analysis·DateSep 9, 2025

Global integration of traditional and modern medicine: policy developments, regulatory frameworks, and clinical integration model

The global integration of traditional and modern medicine has been shown to improve patient outcomes by enhancing symptom management, quality of life, and treatment adherence. Effective integration relies on robust regulatory frameworks governing practitioner licensing, quality control, pharmacovigilance, and research.

SourceXia & He Publishing Inc.·JournalFuture Integrative Medicine·DateSep 9, 2025

Risk theory: From perception to cognition

A new study proposes a unified framework for understanding risk as a result of human cognition, connecting perception and analysis. The model highlights the disparity between target value expectations and realistic ones, emphasizing the role of self-aware stakeholders in transforming perception into rational response decisions.

SourceKeAi Communications Co., Ltd.·JournalRisk Sciences·TypeCommentary/editorial·DateSep 9, 2025

How to find a cryptic animal: Recording the elusive beaked whale in the Foz do Amazonas Basin

Beaked whales are recorded in the Foz do Amazonas Basin using passive acoustic monitoring, demonstrating their first documentation in Brazilian waters. The study contributes to understanding cetacean biodiversity and showcases the effectiveness of acoustic monitoring for categorizing elusive sea creatures.

SourceAmerican Institute of Physics·JournalThe Journal of the Acoustical Society of America·DateSep 9, 2025

Microbiome instability linked to poor growth in kids

A recent study found that toddlers with a fluctuating gut microbiome showed poorer growth compared to those with a stable microbiome. The researchers created a public health database containing complete genetic profiles of microbes from fecal samples, which can be used for future studies to help predict and prevent malnutrition.

SourceWashU Medicine·JournalCell·TypeData/statistical analysis·DateSep 9, 2025

Well-publicized polar geoengineering ideas will not help and could harm, warn experts

Five well-publicized polar geoengineering ideas are highly unlikely to benefit the polar regions and could harm ecosystems, communities, and international relations. Researchers found that these proposals would likely cost billions in setup and maintenance while introducing ecological, environmental, legal, and political challenges.

SourceFrontiers·JournalFrontiers in Science·TypeSystematic review·DateSep 9, 2025

Novel immunotherapy strategy shows promising long-term survival in advanced NSCLC patients with inadequate response to immune checkpoint inhibitors

A phase 2a clinical trial investigated an experimental viral immunotherapy, CAN-2409, in patients with unresectable stage III/IV NSCLC who previously failed to respond adequately to ICI. Patients showed longer overall survival and increased cytotoxic effector T cells after treatment.