CHICAGO – An image-only artificial intelligence (AI) model for predicting the five-year risk of breast cancer provided stronger and more precise risk stratification than breast density assessment, according to a new study being presented next week at the annual meeting of the Radiological Society of North America (RSNA). Senior author Constance D. Lehman, M.D., Ph.D., professor of radiology at Harvard Medical School in Boston, Massachusetts, said traditional methods of assessing a woman’s risk for breast cancer, including age, family history, genetics and breast density, ...

A large-scale laboratory screening of human-made chemicals has identified 168 chemicals that are toxic to bacteria found in the healthy human gut. These chemicals stifle the growth of gut bacteria thought to be vital for health. Most of these chemicals, likely to enter our bodies through food, water, and environmental exposure, were not previously thought to have any effect on bacteria. As the bacteria alter their function to try and resist the chemical pollutants, some also become resistant to antibiotics such as ciprofloxacin. If this happens in the human gut, it could make infections harder to treat. The new research, ...

EMBARGOED UNTIL 10:00 AM GMT / 05:00 ET WEDNESDAY 26 NOVEMBER 2025 Chemists design OLEDs that electrically flip the handedness of light Researchers from the University of Oxford have for the first time discovered an approach to electrically switch organic LEDs (OLEDs) to emit either left- or right-handed circularly polarized light without changing the light-emitting molecules. This could be useful for a range of technological applications, from more energy efficient OLED displays, to optical information transfer. They describe their results in a study published today (26 Nov) in Nature Photonics. Usually, the handedness of such ...

New York, NY [November 26, 2025]— Researchers at the Icahn School of Medicine at Mount Sinai and collaborators have reported early success with a novel mRNA-based therapy designed to combat antibiotic-resistant bacteria. The findings, published in the November 26 online issue of Nature Biotechnology [DOI: 10.1038/s41587-025-02928-x], show that in preclinical studies in mice and human lung tissue in the lab, the therapy slowed bacterial growth, strengthened immune cell activity, and reduced lung tissue damage in models of multidrug-resistant pneumonia. Antibiotic-resistant ...

Researchers have discovered new regions of the human genome particularly vulnerable to mutations. These altered stretches of DNA can be passed down to future generations and are important for how we study genetics and disease.  The regions are located at the starting point of genes, also known as transcription start sites. These are sequences where cellular machinery starts to copy DNA into RNA. The first 100 base pairs after a gene’s starting point are 35% more prone to mutations compared with what you’d expect by chance, according to the study published today in Nature Communications.  “These sequences are extremely prone to mutations and rank among the most functionally ...

A new paper in Biology Methods and Protocols, published by Oxford University Press, finds that we can now distinguish wild from farmed salmon using deep learning, potentially greatly improving strategies for environmental protection. Norway is home to the largest remaining wild populations of wild salmon and is also one of the largest producers of farmed salmon. Atlantic salmon abundance in Norway has declined by over 50% since the 1980s and is now at historically low levels. Escaped farmed salmon are an important reason for this decline. Norway produces over 1.5 million ...

CLEVELAND, Ohio (Nov 26, 2025) –Although research on sexuality in older adults has been growing in recent years, most of the studies are focused on partnered sexual activity and not on solo sexual behavior, including masturbation or the use of sex toys. A new study specifically investigated sex toy use during partnered sex and masturbation in older adult women. Results of the study are published online today in Menopause, the journal of The Menopause Society. Women are less likely to masturbate than men, and masturbation tends to be negatively associated with age. Women are more likely to use masturbation as complementary ...

Fame itself may be a critical factor in shortening singers’ lives beyond the hazards of the job—at least those in the UK/Europe and North America—suggests research published online in the Journal of Epidemiology & Community Health. These stars seem to die around 4 years earlier, on average, than their peers who haven’t achieved celebrity status, and the effects of fame are on a par with certain other health risks, suggest the researchers. Previously published research indicates that famous singers tend to die earlier than the general public. But it’s far from clear ...

Drinking a maximum of 3-4 cups of coffee a day may slow the ‘biological’ ageing of people with severe mental illness, by lengthening their telomeres—indicators of cellular ageing—and giving them the equivalent of 5 extra biological years, compared with non-coffee drinkers, finds research published in the open access journal BMJ Mental Health.   But no such effects were observed beyond this quota, which is the maximum daily intake recommended by several international health authorities, including the NHS and the US Food and Drug Administration.   Telomeres sit ...

Embargoed copy of the research paper available on request Scientists have developed a new material that converts motion into electricity (piezoelectricity) with greater efficiency and without using toxic lead - paving the way for a new generation of devices that we use in everyday life. Publishing their discovery in Journal of the American Chemical Society today (26 Nov) researchers from the University of Birmingham, University of Oxford, and University of Bristol describe a material that is both durable and sensitive to movement - opening possibilities for a wide range of innovative devices such as sensors, wearable electronics, and self-powered devices.​ Based on bismuth iodide, an inorganic ...

A team of astronomers from the International Centre for Radio Astronomy Research (ICRAR) has released new data from an extensive galaxy evolution survey that found a galaxy’s ‘neighbourhood’ plays a major role in how it changes over time. The Deep Extragalactic Visible Legacy Survey, or DEVILS for short, has released its initial data and a series of recent publications explaining how a galaxy’s location in the Universe can significantly influence its evolution. The survey combines data ...

In the early 1930s, Swiss astronomer Fritz Zwicky observed galaxies in space moving faster than their mass should allow, prompting him to infer the presence of some invisible scaffolding — dark matter — holding the galaxies together. Nearly 100 years later, NASA’s Fermi Gamma-ray Space Telescope may have provided direct evidence of dark matter, allowing the invisible matter to be “seen” for the very first time. Dark matter has remained largely a mystery since it was proposed so many years ago. Up to this point, scientists have only been able to indirectly observe ...

Key Findings of the Report:  Global Imbalance: Across all three conventions (UNFCCC, UNCCD, CBD), men hold 496 (60%) focal point roles compared to 334 (40%) held by women.  Convention Disparities: The UNCCD has the lowest female representation (35%), while the UNFCCC and CBD stand at 41% and 45%, respectively.  Regional Gaps: Africa faces the steepest challenge, with women representing only 25% of focal points, whereas Eastern Europe leads with 67% female representation.  Exclusive Representation: 51 countries are represented entirely by ...

Six faculty members from the University of Tennessee, Knoxville — five from the Tickle College of Engineering and one from the College of Arts and Sciences — have been named to Clarivate’s Highly Cited Researchers list for 2025, an honor bestowed on only one in 1,000 of the world’s scientists and social scientists. The designation recognizes researchers whose publications are among the top 1% by citations in their respective fields over the past decade. “Being ...

Researchers at the University of Arizona uncovered a previously unknown population of circulating immune cells that play a critical role in fibrosis, the buildup of scar tissue that can lead to organ failure and disfigurement. The findings, published in Nature Biomedical Engineering, add to the understanding of the healing process and could lead to new strategies for preventing or treating fibrosis. Fibrosis contributes to nearly half of all deaths in developed countries, including conditions such as pulmonary fibrosis, renal fibrosis, organ ...

BOZEMAN – In new research published this week, work by a Montana State University scientist aims to explore the gradations in elevation-dependent changes in climate, including in mountainous ecosystems like those in Montana and the Rockies. John Knowles, an assistant professor in MSU’s Department of Land Resources and Environmental Sciences in the College of Agriculture, is one of nearly two dozen authors from around the world on the new paper, titled “Elevation-dependent climate change in mountain environments.” The work was published Nov. 25 in ...

The University of Tennessee has been awarded a $1 million grant from the National Science Foundation (NSF) to prepare Tennessee’s high school students and teachers for careers in the rapidly growing semiconductor industry—one of the most critical sectors of the U.S. economy. The three-year project, Explorations: Tennessee Experiential Learning for Teachers and Students to Empower Pathways into Microelectronics, is funded through NSF’s Experiential Learning for Emerging and Novel Technologies (ExLENT) program. Led by the College of Emerging and Collaborative Studies (CECS) and in close partnership with Tickle College of Engineering’s (TCE) Min ...

As cities continue to expand and face rising environmental pressure, scientists are seeking innovative solutions that can help urban areas become cleaner, greener, and more resilient. A new perspective paper highlights biochar, a carbon rich material made from organic waste, as a transformative tool that could significantly improve the environmental future of cities around the world. The study, published in Biochar X, synthesizes global research and case studies to show how biochar contributes to cleaner air, healthier soils, improved water quality, and reduced greenhouse gas emissions. The authors examined applications across major cities such as ...

SAN ANTONIO, Nov. 25, 2025 – From metabolic villain to hero? The hormone glucagon that raises blood sugar is now getting a second look to see how it actually contributes to insulin secretion, glucose regulation and energy balance in people with obesity. A clinical research team at UT Health San Antonio, the academic health center of The  University of Texas at San Antonio, has been awarded a five-year, nearly $4 million grant from the National Institutes of Health’s National Institute of ...

In a re-evaluation of Hockett’s foundational features that have long dominated linguistic theory—concepts like ‘arbitrariness’, ‘duality of patterning’, and ‘displacement’—an international team of linguists and cognitive scientists shows that modern science demands a radical shift in how we understand language and how it evolved. The conclusion? Language is not a spoken code. It’s a dynamic, multimodal, socially embedded system that evolves through interaction, culture, ...

UNIVERSITY PARK, Pa. — Over the last few years, systems and applications that help visually impaired people navigate their environment have undergone rapid development, but still have room to grow, according to a team of researchers at Penn State. The team recently combined recommendations from the visually impaired community and artificial intelligence (AI) to develop a new tool that offers support specifically tailored to the needs of people who are visually impaired.  The tool, known as NaviSense, is a smartphone application that ...

Whether great minds think alike is up for debate, but the collaborating minds of two people working on a shared task process information alike, according to a study published November 25th in the open-access journal PLOS Biology by Denise Moerel and colleagues from Western Sydney University in Australia. Humans rely on collaboration for everything from raising food to raising children. But to cooperate successfully, people need to make sure that they are seeing the same things and working within the same rules. We must agree that the red fruits are the ones that are ripe and that we will leave green fruits alone. Behavioral collaboration requires that people think ...

Scanning for serious structural issues in fetuses during the first trimester can result in earlier detection of these issues, reports a new study led by Aris Papageorghiou at the University of Oxford, United Kingdom, published November 25th in the open-access journal PLOS Medicine. In England, pregnant people typically undergo a basic ultrasound at 12 weeks to assess the gestational age. Whereas an ultrasound at around 20 weeks – during the second trimester – is used to detect serious problems called congenital anomalies, which occur in about ...

Newcastle University has won the UK’s highest national honour for universities in recognition of work transforming the understanding, diagnosis and care of people with Dementia with Lewy bodies. The prestigious Queen Elizabeth Prizes for Higher and Further Education are awarded by the monarch every two years in recognition of world-class excellence and achievement at academic institutions. Newcastle University has been recognised with a Queen Elizabeth Prize for Education in this round and the last one in 2023, for excellence in water research. Dementia with Lewy bodies (DLB) Dementia with Lewy bodies (DLB) is the ...

UNIVERSITY PARK, Pa. — At a time when millions of Americans have turkey on their minds, a team of researchers led by an animal scientist at Penn State has successfully tested a new way for poultry producers to keep their turkeys in sight.  Crucial for productivity and animal welfare, monitoring behavior and health of poultry animals on large, commercial farms is a costly, time-consuming and labor-intensive task. To help producers keep track of how the birds are behaving, the researchers tested a new method using a small drone equipped ...