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Phys.org / Rapid X-ray pulses enable 100-fold efficiency boost for photoionization
Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a short-lived window of opportunity opens. For just a few femtoseconds, before an electron fills the void ...
Phys.org / Six strategies identified to help households cut down on food waste
Researchers from the Center for Food Policy at City St George's, University of London and Scotland's Rural College have set out six key areas for action that could help households cut down on food waste in a new comment article ...
Tech Xplore / Researchers develop new algorithms for the efficient design of motorcycles in the digital environment
Researchers at Universidad Carlos III de Madrid (UC3M) have developed a set of innovative methods and algorithms that improve the performance and precision of vehicle design through topological optimization, a mathematical ...
Phys.org / H5N1 variant has made its way to an Australian subantarctic island
On Heard Island, a remote Australian subantarctic island some 4,000 km southwest of Perth, scientists were concerned after observing high mortality rates in the elephant seal population.
Phys.org / What seven decades of hunting for aliens tells us
Since the 1950s, humanity has been searching for extraterrestrial life with increasingly sophisticated tools. But after decades of space probes, meteorite analysis, radio telescopes, and UFO investigations, what have we actually ...
Phys.org / Probing the quantum nature of black holes through entropy
In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of thermodynamics, which states that entropy remains positive and vanishes at extremely low temperatures, ...
Medical Xpress / Specialized neuron populations in the mouse cortex coordinate to guide correct decisions, study suggests
For decades, neuroscientists have been trying to pinpoint the neural underpinnings of behavior and decision-making. Past studies suggest that specialized groups of neurons in the mammalian brain, particularly in the cortex, ...
Phys.org / Humans and artificial neural networks exhibit some similar patterns during learning
Past psychology and behavioral science studies have identified various ways in which people's acquisition of new knowledge can be disrupted. One of these, known as interference, occurs when humans are learning new information ...
Phys.org / Asteroid loaded with amino acids offers new clues about the origin of life on Earth
One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer space. This idea suggests that prebiotic molecules—the building blocks of life—were transported ...
Phys.org / Saturday Citations: Cute squid with scary name; potential detection of dark matter; fate of the AMOC
This week, researchers reported that weight and health markers may rebound when patients stop using some of the new hormonal gastric inhibitory polypeptide drugs. A prototype device can restore lost olfactory sense. And a ...
Medical Xpress / Your risk of catching COVID is at its lowest since 2020—but here's why you should still get boosted for Christmas
As the Christmas season looms, with its crowded end-of-year parties, family gatherings and busy travel schedules, many New Zealanders might be asking a now familiar question: should I get another COVID-19 booster?
Phys.org / From the volcanic crater to the lab: Extremophiles offer a lesson in survival
"Adapt or perish, now as ever, is nature's inexorable imperative," wrote H. G. Wells. This principle—that survival requires change—was mastered billions of years ago by single-celled organisms living in extreme heat. ...
