7,348 articles mezi dny 1.3.2021 a 31.3.2021

Fast, portable test can diagnose COVID-19 and track variants

Clinicians using a new viral screening test can not only diagnose COVID-19 in a matter of minutes with a portable, pocket-sized machine, but can also simultaneously test for other viruses -- like influenza -- that might be mistaken for the coronavirus. At the same time, they can sequence the virus, providing valuable information on the spread of COVID-19 mutations and variants.

Cervical cancer testing tech could replace pap smears, save lives

Emerging technologies can screen for cervical cancer better than Pap smears and, if widely used, could save lives in areas where access to health care may be limited. In Biophysics Reviews, scientists at Massachusetts General Hospital write advances in nanotechnology and computer learning are among the technologies helping develop HPV screening that take the guesswork out of the precancer tests....

Mothers bear the cost of the pandemic shift to remote work

At the same time the pandemic was expanding the number of people working remotely, children nationwide began attending school virtually. The result? An increase in domestic work that fell disproportionately on the shoulders of mothers, according to a new study by sociologists.

Greenland caves: Time travel to a warm Arctic

An international team of scientists led by Gina Moseley from the Department of Geology at the University of Innsbruck presents the very first analysis of sediments from a cave in northeast Greenland, that cover a time period between about 588,000 to 549,000 years ago. This interval was warmer and wetter than today, the cave deposits provide an outlook in a possible future warmer world due to...

First images of freshwater plumes at sea

The first imaging of substantial freshwater plumes west of Hawai'i Island may help water planners to optimize sustainable yields and aquifer storage calculations. University of Hawai'i at Mānoa researchers demonstrated a new method to detect freshwater plumes between the seafloor and ocean surface in a study recently published in Geophysical Research Letters.

Scientists: Grizzlies expand turf but still need protection

Grizzly bears are slowly expanding the turf where they roam in parts of the northern Rocky Mountains but need continued protections, according to government scientists who concluded that no other areas of the country would be suitable for reintroducing the fearsome predators.

Decades of hunting detects footprint of cosmic ray superaccelerators in our galaxy

An enormous telescope complex in Tibet has captured the first evidence of ultrahigh-energy gamma rays spread across the Milky Way. The findings offer proof that undetected starry accelerators churn out cosmic rays, which have floated around our galaxy for millions of years. The research is to be published in the journal Physical Review Letters on Monday, April 5.

Heat conduction record with tantalum nitride

In order to remove heat, for example from computer chips, materials are needed which are extremely good at conducting heat. Scientists in Vienna have analyzed materials on an atomic level and found an excellent new heat conductor: theta-phase tantalum nitride.