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Phys.org / Ultrafast light switches use atomically thin semiconductors for rapid optical control
A nanostructure made of silver and an atomically thin semiconductor layer can be turned into an ultrafast switching mirror device that may function as an optical transistor—with a switching speed around 10,000 times faster ...
Phys.org / Iron Age dental plaque reveals Scythians consumed milk from horses and ruminants
Researchers have deciphered the diet of an important nomadic people in Eastern European history. By analyzing dental calculus, they have provided the first direct evidence that the diet of the Scythians included milk from ...
Phys.org / Kenya's big cats under pressure: Cattle are pushing lions away
In the Kenyan savanna, lions and livestock essentially live in shifts: Cattle graze during the day and are enclosed at night when lions are active.
Phys.org / Key protein can restore aging neural stem cells' ability to regenerate
Researchers at the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), have found that a key protein can help to regenerate neural stem cells, which may improve aging-associated decline in neuronal ...
Medical Xpress / High-dose inhaled nitric oxide shows early promise as a potential antimicrobial therapy
Overuse of antibiotics has accelerated the development of bacterial resistance to conventional drugs, a global health crisis projected to result in more than 10 million deaths annually by 2050. The multidrug-resistant bacterium ...
Phys.org / Bats, bushbabies and aardvark edge closer to extinction in southern Africa
A new list of threatened mammals in South Africa, Lesotho and Eswatini shows that 11 more species have edged closer to extinction since 2016. Those that have joined the International Union for the Conservation of Nature's ...
Phys.org / New method creates acinar cells involved in formation of pancreatic cancer
Organoids are three-dimensional miniature models of organs, grown in a dish. They have become a valuable tool for studying human development, organ regeneration, function, and disease progression. Organoids derived from patient ...
Phys.org / Bird retinas function without oxygen—solving a centuries-old biological mystery
Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal kingdom—function permanently without it. This may be relevant in future treatment of stroke patients.
Phys.org / Chiral phonons create orbital current via their own magnetism
In a new study, an international group of researchers has found that chiral phonons can create orbital current without needing magnetic elements—in part because chiral phonons have their own magnetic moments. Additionally, ...
Medical Xpress / A stronger focus on prevention could help governments rein in health care and social spending
At the start of the new year, many of us will commit to joining a gym, eating healthier or cutting back on drinking and smoking. We do this knowing that investing in our health today will pay off into the future—that prevention ...
Phys.org / Grains of sand prove people—not glaciers—transported Stonehenge rocks
Ask people how Stonehenge was built and you'll hear stories of sledges, ropes, boats and sheer human determination to haul stones from across Britain to Salisbury Plain, in south-west England. Others might mention giants, ...
Phys.org / EAST achieves new plasma confinement regime using small 3D magnetic perturbations
A research group has achieved a new plasma confinement regime using small 3D magnetic perturbations that simultaneously suppress edge instabilities and enhance core plasma confinement in the Experimental Advanced Superconducting ...