Scientists have developed what they believe is the thinnest-possible semiconductor, a new class of nanoscale materials made in sheets only three atoms thick. The University of Washington researchers have demonstrated that two of these single-layer semiconductor materials can be connected in an atomically seamless fashion known as a heterojunction. Show More Summary
COLUMBIA, Mo. — A family of proteins that promotes virus entry into cells also has the ability to block the release of HIV and other viruses, University of Missouri researchers have found. "This is a surprising finding that providesShow More Summary
It’s common knowledge that teenage boys seem predisposed to risky behaviors. Now, a series of new studies is shedding light on specific brain mechanisms that help to explain what might be going on inside juvenile male brains.
(Phys.org) —In a well-known quantum effect called superradiance, atoms can emit light at an enhanced rate compared to what is possible in classical situations. This high emission rate arises from the way that the atoms interact with the surrounding electromagnetic field. Show More Summary
When people watch a movie together their brain activity is, to a remarkable degree, synchronized. It's a slightly creepy thought. It's also a testament to the captivating power of cinema, says Uri Hasson, a psychologist at Princeton University.
For at least a century, the "slithering stones" of Death Valley—rocks, some of them boulders weighing more than 600 pounds, that move across the desert floor leaving long trails behind them—have puzzled researchers. Explanations including dust devils, flooding, hurricane-strength winds, and even UFOs have been offered, National Geographic...
Three papers reveal that around three-quarters of cancer patients who have major depression are not currently receiving treatment for depression, and that a new integrated treatment program is strikingly more effective at reducing depression and improving quality of life than current care.
Only recently has it become possible to accurately 'see' the structure of a liquid. Using X-rays and a high-tech apparatus that holds liquids without a container, a physicist has compared the behavior of glass-forming liquids as they approach the glass transition. Show More Summary
Social class can account for differences in how parents coach their children to manage classroom challenges, a study shows. Such differences can affect a child's education by reproducing inequalities in the classroom. With the widening...Show More Summary
A comet collision with Earth caused abrupt environmental stress and degradation that contributed to the extinction of most large animal species then inhabiting the Americas, a group of scientists suggests. The catastrophic impact and...Show More Summary
Exciting new work has led to a novel molecular system that can take your temperature, emit white light, and convert photon energy directly to mechanical motions. And, the molecule looks like a butterfly.
The mechanical force that a single fungal cell or bacterial colony exerts on a plant cell may seem vanishingly small, but it plays a heavy role in setting up some of the most fundamental symbiotic relationships in biology, according to a new study. Show More Summary
A gene that could help engineer drought-resistant crops has been identified by researchers. The gene, called OSCA1, encodes a protein in the cell membrane of plants that senses changes in water availability and adjusts the plant's water conservation machinery accordingly. The findings could make it easier to feed the world's growing population in the face of climate change.
A diet of junk food not only makes rats fat, but also reduces their appetite for novel foods, a preference that normally drives them to seek a balanced diet, reports a study. "The interesting thing about this finding is that if the same...Show More Summary
Cheetahs primarily prefer wildlife on their menu to cattle, scientists have confirmed. The cheetah is a vulnerable species that only exists on Namibia’s commercial farmland in large populations. Here, local farmers see cheetahs as a potential threat for their cattle.
Children who repeatedly become infected with malaria often experience no clinical symptoms with these subsequent infections, and a team of scientists has discovered that this might be due at least in part to a depletion of specific types of immune cells. Show More Summary
Xenon gas, used in humans for anesthesia and diagnostic imaging, has the potential to be a treatment for post-traumatic stress disorder and other memory-related disorders, researchers report. "We know from previous research that each time an emotional memory is recalled, the brain actually restores it as if it were a new memory. Show More Summary
Scientists have solved the mystery of why a specific signaling pathway can be associated with alcohol dependence. The new research shows the gene, Nf1, regulates gamma-aminobutyric acid (GABA), a neurotransmitter that lowers anxiety and increases relaxation feelings.