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Phys.org / JWST's 'overmassive' early black holes may not be so massive after all
Astronomers studying a population of unusually X-ray-silent and overmassive black holes discovered by the James Webb Space Telescope have found that they may not be as massive as they appear. The new paper, outlining a plausible ...
Phys.org / Next‑generation membranes can refine crude oil using under half the energy of distillation
Oil refining is necessary for transforming raw, unusable crude oil into valuable goods like gasoline, diesel, jet fuel and petrochemical feedstocks. However, the usual distillation process is energy-intensive, spurring researchers ...
Medical Xpress / Softening aging ovaries could help extend fertility as women get older
Fertility declines as women get older for many reasons, such as a drop in egg quality, decreased follicle numbers and hardening of ovarian tissues. That's a problem for would-be mothers in many countries who prefer to have ...
Phys.org / Greenland meltwater adds to AMOC weakening, but updated model finds no tipping point in sight
The state of the Atlantic Meridional Overturning Circulation (AMOC) has been a hot topic among climate scientists in recent years. The AMOC is crucial for climate regulation because it pulls warm surface water from the tropics ...
Medical Xpress / Investigating AI-based personal training
A feature News and Perspectives story on AI fitness advice has been published in the Journal of Medical Internet Research.. In "Should AI Be Your Personal Trainer?", JMIR Correspondent Anna Zucker covers the growing use of ...
Medical Xpress / Ebola outbreak is 'fastest growing ever' as 600 die
The Ebola outbreak in Democratic Republic of Congo is the "fastest-growing" ever, African health authorities said Thursday, as the World Health Organization said it had killed 600 people.
Science X / Moderate geomagnetic storm pushed 20 amps into New Zealand grid while alarms stayed quiet
June 2015's geomagnetic storm barely registered on satellite alarms, yet it quietly sent a steady 20-ampere current into New Zealand's power grid for more than an hour. While satellite dashboards remained calm, ground sensors ...
Medical Xpress / Medical AI may look less biased on paper but not in practice, new study finds
Large language models (LLMs) are only as good as the data they learn from. If their training data contains social biases, the models may unintentionally repeat those biases in their responses. As their use increases with ...
Phys.org / Evidence of elusive high-energy chiral graviton excitations in quantum Hall systems
Electrons, negatively charged particles, sometimes coordinate their movements in ways that produce certain collective excitations referred to as quasiparticles. One case in which this occurs is the quantum Hall effect, a ...
Phys.org / Fossils found decades ago reveal extinct 3.5 million-year-old giant salamander species
In the late 1990s in the Ajimu region of Japan's Oita Prefecture, researchers discovered three fossilized vertebrae belonging to the Cryptobranchidae family of giant salamanders. These were embedded in the Tsubusugawa Formation, ...
Medical Xpress / Psychedelic drug screen in mice may overlook stress and brain changes
Over the past decades, some medical researchers and neuroscientists have been exploring the possible therapeutic effects of psychedelic compounds, such as lysergic acid diethylamide (LSD) and psilocybin. These are substances ...
Phys.org / Could geoengineering work to tamp down super El Niños?
With an anticipated "super" El Niño looming, a new study led by UC San Diego's Scripps Institution of Oceanography considers whether society could use a weather-altering technique as a tool to mitigate the floods, extreme ...
