Culture
A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9% of coronavirus aerosols in an experiment.
"Our work is the first study to use coronavirus aerosols for evaluating filtration efficiency of face masks and air filters," said corresponding author Yun Shen, a UC Riverside assistant professor of chemical and environmental engineering. "Previous studies have used surrogates of saline solution, polystyrene beads, and bacteriophages -- a group of viruses that infect bacteria."
Nearly 15 percent of the U.S. population experiences migraine. One subtype of migraine that is not well understood is migraine with aura (MA). Individuals who experience MA often see flashing lights, blind spots, or jagged lines in their visual field prior to onset of their migraine headaches. Individuals who experience MA also face a heightened risk of stroke and cardiovascular disease, although scientists continue to explore why this correlation exists.
ITHACA, N.Y. - While examining the prevalence of listeria in agricultural soil throughout the U.S., Cornell University food scientists have stumbled upon five previously unknown and novel relatives of the bacteria.
The discovery, researchers said, will help food facilities identify potential growth niches that until now, may have been overlooked - thus improving food safety.
In quiet moments, the brain likes to wander—to the events of tomorrow, an unpaid bill, an upcoming vacation.
A team including Northwestern University astrophysicists has developed the most realistic, highest-resolution 3D simulation of star formation to date. The result is a visually stunning, mathematically-driven marvel that allows viewers to float around a colorful gas cloud in 3D space while watching twinkling stars emerge.
Called STARFORGE (Star Formation in Gaseous Environments), the computational framework is the first to simulate an entire gas cloud -- 100 times more massive than previously possible and full of vibrant colors -- where stars are born.
The challenges that many women face in today's labour market are well documented, from lower employment rates than men to lower rates of pay. Previous studies have considered how the burden of family care, which often falls largely on women's shoulders, has contributed to this imbalance. However, few of these studies have considered why women are the ones to bear that care burden.
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CHAMPAIGN, Ill. -- A new coronavirus test can get accurate results from a saliva sample in less than 30 minutes, researchers report in the journal Nature Communications. Many of the components of the hand-held device used in this technology can be 3D-printed, and the test can detect as little as one viral particle per 1-microliter drop of fluid.
A new study published in Nature Communications provides an important new basis for comparing the effectiveness of different tuberculosis treatments.
Tuberculosis, a disease caused by the bacterium Mycobacterium tuberculosis (Mtb), is typically the leading infectious cause of death globally, killing 1.2 million people each year. The availability of a new way to evaluate treatments can save lives.
Ants are renowned in the insect world for their complex social structure and behaviors. Workers and foragers support the queen, faithfully carrying out their social roles for the overall health of the colony. This complex "superorganism" ---as scientists have dubbed it --- has become a prime model to explore the genetic and behavioral roots of social organisms.
Remarkably, there are also rare instances of ants not playing well with others and shrugging off their societal duties to become free-loading parasites amongst their free-living relatives.
Optimistic predictions expect reliable autonomous vehicles to be commercially available by 2030, at a time when mobility is undergoing a profound shift away from traditional modes of transportation and towards door-to-door services. Previous analysis suggested that public transport will lose market share to autonomous vehicles, but the environmental impact of changing transport use has hardly been considered. New research shows that the convenience of autonomous vehicles would likely come at an environmental cost.
Information flows in a well-defined direction in the brain: Chemical and electrical signals are passed from one neuron to the other across the synapse, from the pre-synaptic to the post-synaptic neuron. Now, Peter Jonas and his group at the Institute of Science and Technology Austria (IST Austria) show that information also travels in the opposite direction at a key synapse in the hippocampus, the brain region responsible for learning and memory.
PULLMAN, Wash. - Alterations in the epigenetic programming of hatchery-raised steelhead trout could account for their reduced fertility, abnormal health and lower survival rates compared to wild fish, according to a new Washington State University study.
The study, published May 18 in Environmental Epigenetics, establishes a link between feeding practices that promote faster growth, as well as other environmental factors in fish hatcheries, and epigenetic changes found in the sperm and red blood cells of of steelhead trout.
A study using a mouse model of eccentric contraction (*1) has revealed that icing injured muscles delays muscle regeneration. The discovery was made by a research group including Associate Professor ARAKAWA Takamitsu and then PhD. Student KAWASHIMA Masato from Kobe University's Graduate School of Health Sciences, and Chiba Institute of Technology's Associate Professor KAWANISHI Noriaki et al. In addition, the researchers illuminated that this phenomenon may be related to pro-inflammatory macrophages' (*2, 3, 4) ability to infiltrate damaged cells.
Robust data and genetic research are providing important evidence on a colony of wild African vervet monkeys that landed in Dania Beach more than 70 years ago and settled in a thick mangrove forest near the Fort Lauderdale-Hollywood International Airport in South Florida.