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Phys.org / 3D-printed ceramic waveguide lasers could surpass the power of glass fiber lasers by 10 times
At the bottom of the ocean, optical fibers transmit telecommunications and internet data around the world. Waveguides make that feat possible by channeling and amplifying the light—and therefore the data within—over enormous ...
Phys.org / Too much RNA can starve cells of energy, study finds
A new study from researchers at the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) has uncovered a previously unknown consequence of viral infection: Too much RNA inside a cell can disrupt its ability ...
Phys.org / Shrews exhibit reversible size changes in their skulls and noses to get through the winter
Scientists had previously observed that some species of shrews undergo a form of biological plasticity in which their bodies, skulls, brains and some organs shrink in the winter, then regrow in the spring. Now, a new study ...
Phys.org / Rye reference genome uncovers diversity that could strengthen wheat breeding
Rye is not only a hardy and high-yielding crop, but also possesses a valuable gene pool for wheat breeding. An international research team led by the IPK Leibniz Institute has significantly improved the foundations for research ...
Medical Xpress / High-dose vitamin D may improve cognition among those at risk of dementia, study finds
With more than 7 million Americans living with Alzheimer's dementia—a number projected to reach nearly 13 million by 2050—new Emory University research suggests that higher vitamin D supplement intake may be associated with ...
Medical Xpress / Compound produced after eating pomegranates targets stiff-heart failure pathway, early tests suggest
A compound produced in the body after eating pomegranates improves heart function by up to 80% in a type of heart failure with limited treatment options.
Phys.org / Racing to build a radio telescope on the moon
Remember the "Wow!" signal? That high-energy radio signature occurred in 1977, when Earth was much "quieter" in the radio band. If it happened today, it probably wouldn't even move the needle on the background noise of human ...
Phys.org / AI prompts offer a new tool for mapping how emotion concepts relate
How similar are "joy" and "surprise"? Conversely, how far apart are "joy" and "sadness"? We naturally organize words that express emotions—such as "happy," "afraid," and "angry"—according to similarities and differences in ...
Medical Xpress / New metric reveals how inequality can spark epidemics despite low overall risk
Influenza spreads in a crowded barracks or prison. Ebola proliferates when per capita hospital beds plummet below typical levels in developed countries. Bedside discrimination leads some patients to die and others to survive.
Phys.org / 'Ecology of fear' can dramatically change the behavior of blue mussels
For a blue mussel, a good meal does not come entirely without risk. Blue mussels feed by filtering microscopic algae from seawater. But some unwelcome guests can slip in along with their food. Tiny parasite larvae can hitch ...
Phys.org / Astronomers catch hot birth of galaxy cluster more than 11 billion light-years away
Astronomers have detected an enormous cloud of gas tens of millions of degrees hot surrounding one of the most extreme structures known in the early universe. The study offers one of the clearest views yet of a galaxy cluster ...
Phys.org / Were Denisovans tall compared to other ancient humans? We should be skeptical
Take a walk in London's Trafalgar Square this summer, and people of all body sizes—some tall, some short—will be wilting in the heat: a real mix of sizes.
