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Science News for September 19, 2025


Improving question answering over building codes by evaluating retrievers and fine-tuning LLMs

Researchers developed a robust QA system using Retrieval Augmented Generation (RAG) to answer queries on building codes. They found that Elasticsearch was the most effective retriever and fine-tuning Large Language Models (LLMs) significantly enhanced generational accuracy, achieving a 6.83% relative improvement in BERT F1-score.

SourceELSP·JournalSmart Construction·TypeData/statistical analysis·DateSep 19, 2025

From the Atlantic to Asia: How an ocean thousands of miles away dictates rainfall on the Tibetan Plateau

A new study reveals that the North Atlantic Ocean's sea surface temperature dipole influences summer precipitation on the Tibetan Plateau through atmospheric teleconnection processes. This finding provides a new framework for understanding rainfall variability and has significant implications for climate risk management in the region.

Can a hybrid AI-physics model address the challenges of typhoon forecasting? New study shows significant accuracy gains

A recent study demonstrates significant gains in forecast accuracy using a hybrid Shanghai Typhoon Model, which combines the strengths of both physics-based and machine-learning weather prediction models. The model achieved substantially lower track errors than state-of-the-art models during Typhoon Danas in 2025.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateSep 19, 2025

Mixing neutrinos of colliding neutron stars changes how merger unfolds

Researchers found that neutrino flavor transformations alter the composition and signals of what's left after a neutron star collision, impacting the creation of heavy metals and rare earth elements. The simulations also influenced the matter ejected from the merger and electromagnetic emissions detectable from Earth.

SourcePenn State·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateSep 19, 2025

Novel fast charging solution for electric vehicles

Researchers at IISc have developed a novel cascaded H-bridge-based multiport DC converter to directly connect to the medium-voltage AC grid, eliminating the need for large and expensive LFTs. This technology offers a 3-5% improvement in energy efficiency and reduces costs, making electric vehicle charging stations environmentally frien...

SourceIndian Institute of Science (IISc)·JournalIEEE Transactions on Industrial Electronics·DateSep 19, 2025

Achalasia treatment: A review of per-oral endoscopic myotomy and laparoscopic heller myotomy

The gut microbiome plays a crucial role in colorectal carcinogenesis, with dysbiosis promoting chronic inflammation and facilitating carcinogenesis. Probiotics, dietary interventions, and microbiome-informed immunotherapy show promise in restoring microbial balance and improving responsiveness to immunotherapy.

SourceXia & He Publishing Inc.·JournalJournal of Translational Gastroenterology·DateSep 19, 2025

The Journal of Nuclear Medicine Ahead-of-Print Tip Sheet: September 19, 2025

Faster PET scans show promise for detecting liver inflammation and metabolic dysfunction-associated steatohepatitis. An AI tool combines multiple PET scans to integrate data from different tracers, improving disease insights. New imaging techniques enhance breast cancer surgery and predict recovery after heart attack.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateSep 19, 2025

How synapses stick together

A team of researchers at the University of Cologne has made a groundbreaking discovery about the molecular basis of inhibitory synapse formation. They found that gephyrin filaments play a crucial role in forming post-synapses, which are essential for billions of synapses in the brain. This study has significant implications for underst...

SourceUniversity of Cologne·JournalNature Communications·TypeObservational study·DateSep 19, 2025

Bigscale pomfret are an ocean enigma

Researchers used satellite tracking to study bigscale pomfret's movements, revealing they are permanent residents of the twilight zone, migrating between depths to feed at night. Water clarity affects their migration patterns, influencing prey and susceptibility to predators.

SourceWoods Hole Oceanographic Institution·JournalMarine Ecology Progress Series·TypeObservational study·DateSep 19, 2025

James Webb Space Telescope reveals dark beads and lopsided star patterns in Saturn's atmosphere

A study using James Webb Space Telescope data has revealed complex features in Saturn's atmospheric structure, including fine-scaled bead-like patterns and an asymmetric star-shaped feature. These findings suggest new insights into the energy exchange driving Saturn's aurora and previously unknown atmospheric processes.

SourceNorthumbria University·JournalGeophysical Research Letters·DateSep 19, 2025

Wildfires are changing the air we breathe—here’s what that means for your health

A new study finds that large wildfires like those in Colorado, Oregon, and California increase ozone concentrations by 21 parts per billion, exceeding health standards. The research team developed a computer model to simulate the effects of wildfire smoke on ozone levels, highlighting the urgent need for air quality monitoring.

SourceUniversity of Colorado Denver·JournalAtmospheric Environment·TypeComputational simulation/modeling·DateSep 19, 2025

Unveiling the therapeutic potential of abaloparatide in treating periodontal dehiscence

Researchers demonstrate that intraoral administration of abaloparatide combined with orthodontic force supports alveolar bone thickening. ABL-induced alveolar bone formation is linked to the focal adhesion pathway, where FAK activation plays a crucial role.

SourceEditorial Office of West China School of Stomatology, Sichuan University·JournalInternational Journal of Oral Science·TypeExperimental study·DateSep 19, 2025

Sexual health gaps persist for migrant youth in Canada, despite lower rates of sexual activity

A UBC-led study found that migrant youth in Canada are less likely to be sexually active than their Canadian-born peers, with declining contraception use among those who do participate. Systemic barriers, including language barriers and stigmatization, hinder access to accurate information and services.

SourceUniversity of British Columbia·JournalBMC Public Health·TypeData/statistical analysis·DateSep 19, 2025

A survey of covert UAV Communications

A survey of covert UAV communications explores emerging methods and technologies for secure transmission in UAV-assisted networks. Uncertainties can enhance covertness, and techniques like multiple antennas and artificial intelligence improve communication performance.

SourceTsinghua University Press·JournalChinese Journal of Aeronautics·DateSep 19, 2025

Partnerships boost life satisfaction

A new study by researchers in Germany and the UK found that living in a partnership leads to a sustained increase in life satisfaction, with the greatest gain occurring at the transition from singlehood into a relationship. The positive effect lasts for at least two years, regardless of age, sex, income, or education.

SourceBielefeld University·JournalJournal of Personality·DateSep 19, 2025

Not all heart attack patients receive the same type of care, researchers find

A new study found significant racial disparities in the care of patients with ST-elevation myocardial infarction (STEMI) in Florida. Hispanic and non-Hispanic Black patients were less likely to receive percutaneous coronary intervention (PCI), a recommended treatment, compared to non-Hispanic white patients. This disparity resulted in ...

SourcePenn State·JournalJAMA Network Open·TypeData/statistical analysis·DateSep 19, 2025

Possible breakthrough in the development of effective biomaterials

A research team led by Professor Shikha Dhiman has discovered that the speed of receptors in model cell membranes plays a crucial role in binding to biomaterials. When ligands move at similar speeds, they can bind to receptors, enabling effective tissue engineering and medical applications.

SourceJohannes Gutenberg Universitaet Mainz·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateSep 19, 2025

Sugary drinks may increase risk of metastasis in advanced colorectal cancer

A new study found that sugary drinks can fuel metastasis in preclinical models of advanced colorectal cancer by activating an enzyme called sorbitol dehydrogenase. This pathway is also targeted by statins, common heart drugs. Reducing sugary drink consumption and targeting this enzyme may offer opportunities to reduce metastasis.

Research project co-led by University of Tennessee, Knoxville among finalists in NSF Regional Innovation Engines Program

The BRIDGES proposal aims to develop a circular bioeconomy in the southeastern US by converting perennial agricultural grass crops into consumer goods. This initiative will create new markets for farmers and produce needed products while developing the region's workforce, ultimately providing access to high-paying jobs.

Consumption of food additives during pregnancy: Effects on offspring microbiota increase susceptibility to inflammatory diseases

A study in mice found that maternal consumption of emulsifiers can alter the gut microbiota of their offspring, leading to increased risk of chronic inflammatory gut disorders and obesity. The research highlights the importance of regulating food additives, particularly in powdered baby formulas, to prevent long-term health consequences.

SourceInstitut Pasteur·JournalNature Communications·TypeExperimental study·DateSep 19, 2025

Bridging ancient wisdom and modern science: 'Food and medicine homology' presents new opportunities in cancer care

Researchers propose using 'food and medicine homology' (FMH) substances as adjunctive therapies to address drug resistance, tumor heterogeneity, and metabolic imbalances in cancer treatment. These compounds offer a multi-component, multi-target approach with low toxicity and potential synergistic effects.

SourceTsinghua University Press·JournalFood & Medicine Homology·DateSep 19, 2025

Performance enhancement of nanogenerator achieved in branch-heterostructure piezoelectric ceramic fiber towards electrical transmission power line monitoring

Researchers at Tsinghua University Press developed a new piezoelectric ceramic fiber that significantly improves the output performance of PENG, leading to enhanced electrical transmission power line monitoring. The team achieved impressive results in terms of dielectric and piezoelectric properties, with applications in sensing applic...

SourceTsinghua University Press·JournalJournal of Advanced Ceramics·DateSep 19, 2025

Temporary Immersion Bioreactor System (TIBS): A breakthrough for standardized, high-quality production of plant-derived extracellular vesicles from food-medicine homology plants

Researchers developed the Temporary Immersion Bioreactor System (TIBS) to overcome quality variability in plant-derived Extracellular Vesicle (PDEV) production. TIBS produces consistent metabolite levels and avoids microbial contamination, enabling non-destructive and efficient PDEV collection.

SourceTsinghua University Press·JournalFood & Medicine Homology·DateSep 19, 2025

MoBluRF: A framework for creating sharp 4D reconstructions from blurry videos

Researchers developed MoBluRF, a two-stage motion deblurring method for NeRFs, achieving high-quality 3D reconstructions from ordinary blurry videos. The framework outperforms state-of-the-art methods and is robust against varying degrees of blur, enabling smartphones to produce sharper and more immersive content.

SourceChung Ang University·JournalIEEE Transactions on Pattern Analysis and Machine Intelligence·TypeComputational simulation/modeling·DateSep 19, 2025

Chinese Medical Journal review highlights neoadjuvant therapy’s promise in advanced colon cancer treatment

Recent clinical trials demonstrate the potential benefits of neoadjuvant chemotherapy and immunotherapy in improving tumor response and surgical success for patients with locally advanced colon cancer. The approach also reduces the risk of recurrence and metastasis, increasing survival outcomes and decreasing cancer-related complications.

SourceChinese Medical Journals Publishing House Co., Ltd.·JournalChinese Medical Journal·TypeLiterature review·DateSep 19, 2025

Materials and Solidification (2025, Volume 1, Issue 2) officially released – Fostering global academic exchange in materials solidification

The newly released Issue 2 of Materials and Solidification gathers high-quality academic papers covering cutting-edge research in materials solidification. The journal focuses on frontier research achievements in solidification theory and technology, with a scope that covers bulk or thin-film materials.

SourceTsinghua University Press·JournalMaterials and Solidification·DateSep 19, 2025

How an ant’s nose knows

Scientists discovered a unique process by which ants select a single odorant receptor from hundreds of genes, using transcriptional interference to silence downstream neighbors. This mechanism has broad implications for the study of gene regulation and sensory systems in insects.

SourceRockefeller University·JournalCurrent Biology·DateSep 19, 2025

Vascular disease is an overlooked contributor to dementia, UNM researcher finds

A UNM researcher has identified 10 disease processes that contribute to vascular-based brain injury, including effects of nano- and microplastics. The findings suggest a potential half of Alzheimer's patients may also have vascular disease, paving the way for new classification and treatment approaches.

SourceUniversity of New Mexico Health Sciences Center·JournalAmerican Journal Of Pathology·TypeObservational study·DateSep 19, 2025

Grouped climate solutions for better production: Science listening to West African farmers

A large-scale survey in Burkina Faso, Ghana, Mali, and Senegal found that West African farmers can benefit from reliable climate services and financial support. The study charted a path to turn weather reports into a profitable investment for farmers.

Physically cold, mentally strained

A recent study found that cold temperatures combined with mental fatigue impair endurance exercise performance. Individuals experiencing increased subjective fatigue showed decreased performance. The Sympathetic Adrenal-Medullary system is involved in the increase of fatigue rather than the Hypothalamic-Pituitary-Adrenal axis.

SourceOsaka Metropolitan University·JournalEuropean Journal of Applied Physiology·TypeRandomized controlled/clinical trial·DateSep 19, 2025

A method for achieving a breakthrough in the solid loading of alumina ceramic slurry

A team at Shanghai Institute of Ceramics has developed a novel method for achieving high solid loading and low viscosity in alumina ceramic slurries. The approach uses polyacrylic acid (PA) as a dispersant in combination with Isobam 104, resulting in improved density, mechanical properties, and sintering densification temperatures. Thi...

SourceTsinghua University Press·JournalJournal of Advanced Ceramics·DateSep 19, 2025

Refining the gut-microbiome axis: A triad of metabolites, targeted microbial delivery, and AI-assisted profiling for precision medicine-food intervention

The article proposes a novel paradigm for precision medicine-food intervention leveraging metabolite networks, targeted delivery technologies, and AI-assisted microbiome functional profiling to overcome individual variability. This approach enables precise interventions by selectively shaping specific functional microbial communities.

SourceTsinghua University Press·JournalFood & Medicine Homology·DateSep 19, 2025

Fossilised faeces help bring prehistoric worlds to life — in molecular detail

An international research team used 300-million-year-old fossilised droppings to better understand molecular fossilisation, revealing how tiny grains of iron carbonate preserved delicate molecular traces. The findings add a new dimension to understanding molecular preservation and its implications for reconstructing ancient ecosystems.

SourceCurtin University·JournalGeobiology·TypeObservational study·DateSep 19, 2025