Tech
Light-induced processes are critical in transformative technologies such as solar energy harvesting, as well as in photomedicine and photoresponsive materials. Theoretical studies of the dynamics of photoinduced processes require numerous electronic structure calculations, which are computationally expensive. Scientists from the University of Groningen developed machine learning-based algorithms, which reduce these computations significantly.
To meet the most ambitious 1.5º C climate goal requires a rapid phaseout of fossil fuels and mass use of renewables. However, new international research by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) warns that green energy projects can be as socially and environmentally conflictive as fossil fuel projects.
Older adults are especially vulnerable to the effects of the COVID-19 pandemic--with higher risks of severe complications and death, and potentially greater difficulties accessing care and adapting to technologies such as telemedicine.
The holiday season usually has the lowest monthly suicide rates. And while the COVID-19 pandemic has increased risk factors associated with suicide, the media and the public should be careful this holiday season not to make unfounded claims about suicide trends.
You don't need a sledgehammer to crack a nut.
Jonathan Frankle is researching artificial intelligence -- not noshing pistachios -- but the same philosophy applies to his "lottery ticket hypothesis." It posits that, hidden within massive neural networks, leaner subnetworks can complete the same task more efficiently. The trick is finding those "lucky" subnetworks, dubbed winning lottery tickets.
A new study from researchers at Brigham Young University finds that alcohol-free hand sanitizer is just as effective at disinfecting surfaces from the COVID-19 virus as alcohol-based products.
Geoscientists have long known that some parts of the continents formed in the Earth's deep past, but the speed in which land rose above global seas -- and the exact shapes that land masses formed -- have so far eluded experts.
But now, through analyzing roughly 600,000 mineral analyses from a database of about 7,700 different rock samples, a team led by Jesse Reimink, assistant professor of geosciences at Penn State, thinks they're getting closer to the answers.
As a vehicle travels through space at hypersonic speeds, the gases surrounding it generate heat at dangerous temperatures for the pilot and instrumentation inside. Designing a vehicle that can drive the heat away requires an understanding of the thermal properties of the materials used to construct it. A recent two-part study at the University of Illinois Urbana-Champaign developed a method to create 3D models of the fibers within composite materials then used that information to predict the thermal conductivity of the material.
Boston -- Though childbirth is often anticipated with optimism and enthusiasm, approximately 10 to 20 percent of pregnant individuals also experience mental health challenges during the weeks immediately before and after birth. Depression, anxiety and trauma-related disorders can all be exacerbated by increased stress related to pregnancy and postpartum experiences. But it's unknown how the stressors of a significant health pandemic can impact these complications.
Glucosamine supplements may reduce overall mortality about as well as regular exercise does, according to a new epidemiological study from West Virginia University.
"Does this mean that if you get off work at five o'clock one day, you should just skip the gym, take a glucosamine pill and go home instead?" said Dana King, professor and chair of the Department of Family Medicine, who led the study. "That's not what we suggest. Keep exercising, but the thought that taking a pill would also be beneficial is intriguing."
A Rutgers study has discovered that vitamin D regulates calcium in a section of the intestine that previously was thought not to have played a key role. The findings have important implications on how bowel disease, including ulcerative colitis and Crohn's disease, may disrupt calcium regulation.
New research published in the journal Diversity and Distributions used cutting-edge technology to show that wild cousins of sorghum, the fifth-most important cereal crop globally, are most concentrated in Australia, despite having been domesticated in Africa. But with 12 of the total 23 wild relative species possibly endangered, four vulnerable, and four near threatened, these economically important wild plants are in peril, the authors warn.
DUARTE, Calif. -- A cancer-killing virus that City of Hope scientists developed could one day improve the immune system's ability to eradicate tumors in colon cancer patients, reports a new study in Molecular Cancer Therapeutics, a journal of the American Association for Cancer Research.
AURORA, Colo. (Dec. 1, 2020) - One of world's earliest examples of art, the enigmatic `Venus' figurines carved some 30,000 years ago, have intrigued and puzzled scientists for nearly two centuries. Now a researcher from the University of Colorado Anschutz Medical Campus believes he's gathered enough evidence to solve the mystery behind these curious totems.
A new global study finds older people in wealthy countries consume more alcohol than their counterparts in middle-income countries, on average, although a higher cost of alcohol is associated with less frequent drinking. Across counties, people drink less as they get older, but at different rates and starting points. The study was led by researchers at Columbia University Mailman School of Public Health and the Robert N. Butler Columbia Aging Center. Findings are published in the journal Addiction.