Pregnant women who develop severe COVID-19 infections that require hospitalization for pneumonia and other complications may not be more likely to die from these infections than non-pregnant women. In fact, they may have significantly lower death rates than their non-pregnant counterparts.

COVID-19 patients who receive oxygen therapy or experience fever show reduced gray matter volume in the frontal-temporal network of the brain, according to a new study. The study's findings demonstrate changes to the frontal-temporal network could be used as a biomarker to determine the likely prognosis of COVID-19 or evaluate treatment options for the disease.

Researchers report that they have built what they say is the world's smallest single-chip system, consuming a total volume of less than 0.1 mm3. The system is as small as a dust mite and visible only under a microscope. In order to achieve this, the team used ultrasound to both power and communicate with the device wirelessly.

With a frilled head and beaked face, Menefeeceratops sealeyi lived 82 million years ago, predating its relative, Triceratops.

A new study has identified a scent receptor in mosquitoes that helps them sniff out and avoid trace amounts of pyrethrum, a plant extract used for centuries to repel biting insects. These findings could help researchers develop new broad spectrum repellents to keep a variety of mosquito species at bay, and by extension stop them from biting people and spreading disease.

In a new study, researchers have found a possible link between poor sense of smell and a higher risk of pneumonia hospitalization.

Researchers have designed a remarkably fast engine that taps into a new kind of fuel -- information. This engine converts the random jiggling of a microscopic particle into stored energy. It could lead to significant advances in the speed and cost of computers and bio-nanotechnologies.

Instead of relying on software to tackle computationally intensive puzzles, researchers took an unconventional approach. They created a design for an electronic hardware system that directly replicates the architecture of many types of networks.

You enter a room and quickly scan the crowd to gain a sense of who's there - how many men versus women. How reliable is your estimate? Not very, according to new research. In an experimental study, researchers found that participants consistently erred in estimating the proportion of men and women in a group. And participants erred in a particular way: They overestimated whichever group was in the...

New research shows that individuals living with human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) -- an estimated 38 million worldwide, according to the World Health Organization -- have an increased risk of SARS-CoV-2 infection and fatal outcomes from COVID-19.

The most energetic earthquakes occur where oceanic plates submerge beneath continental plates during plate tectonics. Quakes in these subduction zone settings commonly carry the risk of triggering severe tsunamis. But when the earth shook with a moment magnitude of 8.1 near the northern Chilean city of Iquique on 1 April 2014, the resulting tsunami was relatively small. A unique seismological data...

Considered extinct as a breeding species in the early 2000s, the Saker Falcon was recovered when the first active nest from the new history of the species in Bulgaria was discovered in 2018, built by two birds that were reintroduced back in 2015.

Network scientists address the effect of team freshness on the originality and multidisciplinary impact of produced work, by systematically investigating prior collaboration relations between team members. Among other things, their study reveals that papers of fresher teams are significantly more effective than those of older teams in creating studies of higher originality and greater...

YouTube channels run by zoos focus on entertainment over education, according to a new study.

Many industrial processes emit volatile organic compounds (VOCs) that are hazardous to human health. In a new study, scientists tailor the catalytic activity of hydroxyapatite, a mineral contained in human bones, using mechanical stress. This method was inexpensive and resulted in a 100% VOC conversion.

A new study has revealed that treatment for heart attacks could be improved thanks to a novel method of evaluating heart function using contrast-based MRI scans.

A new study has revealed 'real world' factors that influence people's interest in adopting a dietary pattern called time-restricted feeding.

Young children in deprived areas see nature and outdoor spaces as being associated with 'happy places', according to a new study.

Blood tests to detect antibodies against SARS-CoV-2, the virus that causes COVID-19, are an important tool for diagnosing the disease, developing potential treatments, and checking vaccine efficacy. Although such tests are available, we have very little understanding on how different antibodies interact with virus antigens. Scientists set out to assess various antigen-specific antibodies and...

Researchers have used machine learning to predict which COVID-19 patients might get worse and not respond positively to being turned onto their front in intensive care units -- a technique known as proning that is commonly used in this setting to improve oxygenation of the lungs.

Scientists describe a fossil skeleton of an ancient shark, which is assigned to a new, previously unknown genus and species.

Obsessive-compulsive disorder (OCD) in children and adolescents is associated with impaired education and worse general health later in life. Access to specialist treatment is often limited. According to a new study, internet-delivered cognitive behavioral therapy (CBT) can be as effective as conventional CBT. The study can help make treatment for OCD more widely accessible.

Road networks extend some 20 million miles across the globe, and that number is projected to increase by an additional 15 million miles or so by 2050.

Tepary beans -- a high protein legume common to the southwest United States and Mexico -- may hold the key to adapting bean crops for the increasingly harsh conditions brought on by a changing climate, according to new research.