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Tech Xplore / Simplified power factor correction: Sensorless control could enable smaller, more reliable electronic adapters
Single-phase power factor correction (PFC) circuits—a kind of front-end AC/DC converters—are ubiquitous in a variety of consumer electronic devices, including laptop adapters, LED driver power supplies, and portable chargers. ...
Medical Xpress / Study finds 40% of GLP-1 prescriptions go unfilled: Is cost curbing use of weight loss drugs?
Popular new anti-obesity medications can help people lose 10% to 20% of their body weight, yet a new study indicates that about 40% of those prescriptions go unfilled. Affordability, say researchers, is likely a factor.
Phys.org / Team shatters 3D nanofabrication limits with meta-optics
Lawrence Livermore National Laboratory (LLNL) engineers and scientists, in collaboration with Stanford University, have demonstrated a breakthrough 3D nanofabrication approach that transforms two-photon lithography (TPL) ...
Phys.org / Urban birds' beak shape rapidly changed during COVID-19 lockdowns, suggesting human-driven transformations
When the world slowed down during the COVID-19 pandemic, its effects extended beyond humans. A recent study found that it reshaped urban ecosystems to such an extent that certain city-dwelling birds even began to develop ...
Phys.org / Flat-band ultrastrong coupling between phonons and plasmons observed for first time
Researchers from CIC nanoGUNE, in collaboration with the Donostia International Physics Center (DIPC) and the Center for Materials Physics (CFM), have experimentally observed and theoretically verified flat-band ultrastrong ...
Phys.org / A new natural sunscreen: Novel compound discovered in thermophilic cyanobacteria
Natural sunscreens shield the skin from harmful radiation, without triggering allergic reactions. In a recently published study, a group of researchers has discovered a novel compound, β-glucose-bound hydroxy mycosporine-sarcosine, ...
Phys.org / A delicate Antarctic balance with global climate implications
New findings about ocean processes in the Antarctic show melting ice shelves and changes to sea ice could have catastrophic implications for the global climate.
Phys.org / New machine-learning models capture the rapid evolution of antimicrobial resistance
Antimicrobial resistance (AMR) is an increasingly dangerous problem affecting global health. In 2019 alone, methicillin-resistant Staphylococcus aureus (MRSA) accounted for more than 100,000 global deaths attributable to ...
Medical Xpress / Aspartame sweetener cuts fat, but may harm heart and brain—even at low doses
A study by CIC biomaGUNE and Biogipuzkoa HRI conducted on mice has found that the prolonged intake of sweeteners may exert harmful effects on the function of various organs. Artificial sweeteners are widely used to reduce ...
Medical Xpress / ACC/AHA issue new guideline on managing congenital heart disease in adults
The American College of Cardiology (ACC) and the American Heart Association, along with several other leading medical associations, have issued a new guideline for managing congenital heart disease in adults. The guideline ...
Phys.org / Catch the Ursid meteor shower as it peaks just before Christmas
The last major meteor shower of the year, known as the Ursids, peaks soon, bringing glowing streaks to nighttime and early morning skies. Compared to other meteor showers, it's more subdued, but experts say it's still worth ...
Medical Xpress / Sleep duration, timing and quality: How smartphone data predict labor productivity
Researchers at University of Tsukuba examined the association between sleep characteristics and workplace productivity using real-world sleep data from approximately 80,000 users (spanning more than 2 million nights) of sleep-tracking ...
