Earth
Nearly 20,000 more Californians died in the first six months of the pandemic than would have been expected to die in a normal year, with a disproportionate number of those deaths occurring among older adults, Black or Latino residents, or those who had not completed high school, according to an analysis by researchers at UC San Francisco.
EUGENE, Ore. -- Dec. 21, 2020 -- Weddell seals are chirping, whistling and trilling under Antarctica's ice at sound frequencies that are inaudible to humans, according to a research team led by University of Oregon biologists.
Two years of recordings at a live-streaming underwater observatory in McMurdo Sound have captured nine types of tonal ultrasonic seal vocalizations that reach to 50 kilohertz. Humans hear in the sonic range of 20 to 20,000 hertz, or 20 kilohertz.
The threshold for dangerous global warming will likely be crossed between 2027 and 2042 - a much narrower window than the Intergovernmental Panel on Climate Change's estimate of between now and 2052. In a study published in Climate Dynamics, researchers from McGill University introduce a new and more precise way to project the Earth's temperature. Based on historical data, it considerably reduces uncertainties compared to previous approaches.
Washington, DC-- A diamond lasts forever, but that doesn't mean all diamonds have a common history.
Some diamonds were formed billions of years ago in space as the carbon-rich atmospheres of dying stars expanded and cooled. In our own planet's lifetime, high-temperatures and pressures in the mantle produced the diamonds that are familiar to us as gems. 5,000 years ago, a large meteorite that struck a carbon-rich sediment on Earth produced an impact diamond.
EVANSTON, Ill. -- Around 120 million years ago, the earth experienced an extreme environmental disruption that choked oxygen from its oceans.
Known as oceanic anoxic event (OAE) 1a, the oxygen-deprived water led to a minor -- but significant -- mass extinction that affected the entire globe. During this age in the Early Cretaceous Period, an entire family of sea-dwelling nannoplankton virtually disappeared.
Ten years of research led by the University of South Florida has revealed that a monitor lizard should be regarded as an "ecosystem engineer," a rarity for reptiles. Tortoises and sea turtles are the only reptiles considered to be ecosystem engineers, a term used to describe organisms that have a great impact on their environment based on their ability to create, modify, maintain or destroy a habitat. Sean Doody, assistant professor and graduate director of integrative biology at the USF St.
BIRMINGHAM, Ala. - A potential preventive treatment for Crohn's disease, a form of inflammatory bowel disease, has been demonstrated in a mouse model and using immune-reactive T cells from patients with Crohn's disease.
HERSHEY, Pa. -- The absence of a protein that works to prevent tumor formation may explain why some patients are resistant to a common cancer therapy, according to Penn State College of Medicine researchers. They said that testing cancers for the presence of this protein may help clinicians identify patients who may be resistant to or relapse when treated with the therapy.
While parents from diverse backgrounds most often value parks that offer amenities like playgrounds, sports fields and green spaces, they also want parks to feel safe, according to a survey by North Carolina State University researchers.
New Rochelle, NY, December 21, 2020--Myanmar youth rely heavily on Facebook for news and information. This can be a platform for disseminating fake news and hate speech. With poor digital literacy skills, these youths may be susceptible to disinformation campaigns and other online dangers, according to the peer-reviewed journal Cyberpsychology, Behavior, and Social Networking. Click here (http://doi.org/10.1089/cyber.2020.0131) to read the article now.
Below please find a summary and link(s) of new coronavirus-related content published today in Annals of Internal Medicine. The summary below is not intended to substitute for the full article as a source of information. A collection of coronavirus-related content is free to the public at http://go.annals.org/coronavirus.
1. Modeling Study Suggests That Mitigation Efforts Can Prevent Most COVID-19 Cases on College Campuses
Synchronization and transients are two fundamental phenomena in nonlinear and complex dynamical systems, and they also emerge ubiquitously in ecology and evolutionary biology. Synchronization is commonly observed in spatially extended ecological systems and is regarded as the dynamical basis for the emergence of ecological cycles and orders, yet there is little understanding of the underlying mechanism.
An infant's odd case of rare encephalitis not typically found in children led researchers to discover never before seen genetic mutations and a more accurate technique to examine the IRAK4 gene responsible for innate immunity.
Waveguides and resonators are core components in electronics, photonics, and phononics, both in existing and future scenarios. In certain situations (space or frequency), critical coupling can occur between the two components, i.e., no energy passes through the waveguide after the incoming wave is coupled into the resonator. The transmission spectral characteristics resulting from this phenomenon are highly advantageous for signal filtering, switching, multiplexing, sensing, etc.
Older adults about to undergo elective surgery should undertake a sustained programme of targeted exercise beforehand to counteract the muscle-wasting effects of bedrest, new research suggests.
A study published by researchers in the University of Birmingham's School of Sport, Exercise and Rehabilitation Sciences showed that short term 'prehabilitation' strength exercises, undertaken pre-surgery, are insufficient to prevent muscle loss.