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A new study led by Marco Fumasoni, principal investigator at Fundação GIMM, shows that evolution can substantially reduce cell size without significantly compromising cells' ability to grow. The work, carried out in yeast in collaboration with researchers at Cornell University, is published in Proceedings of the National Academy of Sciences.
Medical large language models (LLMs) are increasingly being used in clinical settings. For example, AI is helping doctors in emergency rooms flag diagnoses or support decisions. The problem is that most of these systems are proprietary: Their training data, design choices and decision-making processes are hidden from view, making independent review virtually impossible.
Climate change could push UK rivers to dangerous extremes and bring more frequent rapid swings between wet and dry conditions—a phenomenon known as hydroclimatic whiplash—according to research led by the University of East Anglia (UEA). Researchers analyzed almost 700 river catchments across the UK to project how river flows may change at 2° C and 4° C of global warming. The results reveal stark regional contrasts and growing challenges for communities and water managers trying to plan for flood and drought risk, particularly in areas that will increasingly experience both.
One well-done gas giant, coming right up! That's the latest from researchers analyzing NASA's James Webb Space Telescope observations of HD 80606 b, an exoplanet four times the mass of Jupiter with an extremely elliptical orbit that sweeps close by its sun-like star. The research team is presenting its study and preliminary findings Tuesday at the 248th meeting of the American Astronomical Society (AAS248) in Pasadena, California.
Researchers at The Australian National University (ANU) have uncovered a mechanism that helps plants continue photosynthesizing under extreme heat and dry air conditions—a finding that could improve how scientists predict the effects of climate change on crops and ecosystems. The study is the first to successfully separate the effects of heat and air dryness on photosynthesis across different carbon dioxide (CO2) levels, which could have significant practical implications for agriculture by helping improve crop management strategies and strengthen food security.
Could the secret to preventing dangerous falls be surprisingly simple? For older adults, these unexpected tumbles are a leading cause of injury, affecting roughly 1 in 4 people 65 and older each year. What if the key isn't complex technology or intensive therapy, but something as straightforward as a shared connection? Forget holding hands—new research reveals a surprising twist in how two people can become a dynamic duo against sudden loss of balance.
Vapes or e-cigarettes were marketed as a safer, smokeless alternative to traditional cigarettes and even promoted as a tool to help smokers quit. Their fruity flavors and sleek designs further reinforced the perception that they were a less harmful substitute for conventional tobacco products. While quitting smoking is known to reduce cancer risk over time, growing evidence suggests that switching to e-cigarettes may not be as harmless.
A Rutgers study suggests GLP-1 drugs such as Ozempic and Wegovy may weaken the link between impulsive tendencies and violent behavior. The surprising finding hints that these medications could affect how people act on impulses, though researchers stress that cause and effect have not been proven.
A team of scientists has used NASA's Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank Telescope (NSF GBT) to carry out the most extensive radar study to date of Europa, the ocean world orbiting Jupiter. By repeatedly "pinging" Europa with 3.5-centimeter (1.4-inch) radio waves between 2011 and 2024, the team measured how the moon reflects radar signals and confirmed that its icy surface scatters radio energy in an unusually strong and complex way not seen on rocky worlds.
Artificial intelligence can help predict a patient's risk for conditions such as sepsis, heart disease and cancer. But many of these tools fall short in real-life clinical practice because they are difficult for doctors to interpret and trust. Researchers at UC San Francisco have developed a new way to use AI to build clinical prediction tools that combines the speed of artificial intelligence with the judgment of human experts.
For years, pest control professionals throughout the Northeast have reported a troubling pattern. In some neighborhoods, rodents seemed increasingly difficult to eliminate, even when standard control methods were used. Now researchers at Rutgers University believe they may know one reason why.
At 5:11 a.m. PDT (8:11 a.m. EDT), the unpiloted SpaceX Dragon spacecraft splashed down off the coast of California near Oceanside, marking the return of the 34th SpaceX commercial resupply services mission to the International Space Station for NASA. The post SpaceX Dragon Splashes Down in Pacific, Completes Cargo Mission appeared first on NASA Science.
In this edition of AI Prognosis, Brittany Trang takes a close look at ambient scribe developer Abridge's claim about being patient-centered.
Vehicle will attempt a daring capture-and-boost mission to extend the life of the Swift observatory
Infant mortality rate dips, OTC naloxone options rise, and other health news from Morning Rounds
The FDA has reversed its opposition to a closely watched experimental treatment for Huntington’s disease, clearing a path for its maker.
An international study of infant remains from 50,000–75,000 years ago has provided new evidence about the developmental trajectory of our evolutionary "cousins," Neanderthals.
Duke-NUS scientists have discovered that aging muscle may contribute to cancer growth by releasing fewer extracellular vesicles, tiny particles that cells use to communicate with one another. Their study also found that the composition of these particles changes with age, weakening protective signals that help suppress tumor development.
Exposure to a common plastic chemical before and shortly after birth may have lasting effects on behavior. Researchers found that male rats exposed early in life to DEHP—a plasticizer used in products ranging from medical devices to toys—showed significantly higher anxiety as adults, even long after exposure had ended. The animals were more hesitant to explore open spaces and spent more time frozen in place, classic signs of anxiety in rodents.
New research led by a scientist at IPAC—a science and data center for astrophysics and planetary science at Caltech—studying the hot Jupiter CoRoT-2 b has settled on one of the three leading hypotheses explaining why its atmosphere has a hot spot in the opposite direction from that seen on all other exoplanets of this type.