Imaging test may predict patients most at risk of some heart complications from COVID-19

Ever since the 1986 discovery that copper oxide materials, or cuprates, could carry electrical current with no loss at unexpectedly high temperatures, scientists have been looking for other unconventional superconductors that could operate even closer to room temperature. This would allow for a host of everyday applications that could transform society by making energy transmission more efficient, for instance. Nickel oxides, or nickelates, seemed like a promising candidate. They're based on nickel, which sits next to copper on the periodic table, and the two elements have some common characteristics. It ...

Conditions in the tropical ocean affect weather patterns worldwide. The most well-known examples are El Niño or La Niña events, but scientists believe other key elements of the tropical climate remain undiscovered. In a study recently published in Geophysical Research Letters, scientists from the University of Washington and NOAA's Pacific Marine Environmental Laboratory use remotely-piloted sailboats to gather data on cold air pools, or pockets of cooler air that form below tropical storm clouds. "Atmospheric cold pools are cold air masses that flow outward beneath intense thunderstorms and alter the surrounding environment," ...

In a critical next step toward room-temperature superconductivity at ambient pressure, Paul Chu, Founding Director and Chief Scientist at the Texas Center for Superconductivity at the University of Houston (TcSUH), Liangzi Deng, research assistant professor of physics at TcSUH, and their colleagues at TcSUH conceived and developed a pressure-quench (PQ) technique that retains the pressure-enhanced and/or -induced high transition temperature (Tc) phase even after the removal of the applied pressure that generates this phase. Pengcheng Dai, professor of physics and astronomy at Rice University and his group, and Yanming Ma, Dean of the College of Physics ...

The Large High Altitude Air Shower Observatory (LHAASO), one of China's key national science and technology infrastructure facilities, has accurately measured the brightness over 3.5 orders of magnitude of the standard candle in high-energy astronomy, thus calibrating a new standard for ultra-high-energy (UHE) gamma-ray sources. The standard candle is the famous Crab Nebula, which evolved from the "guest star" recorded by the imperial astronomers of China's Song Dynasty. LHAASO has also discovered a photon with an energy of 1.1 PeV (1 PeV = one quadrillion electronvolts), indicating the presence of an extremely powerful electron accelerator--about one-tenth the size of the solar system--located in the core ...

As tectonic plates slip past each other, the rivers that cross fault lines change shape. The shifting ground stretches the river channels until the water breaks its course and flows onto new paths. In a study published July 9 in Science, researchers at UC Santa Cruz created a model that helps predict this process. It provides broad context to how rivers and faults interact to shape the nearby topography. The group originally planned to use the San Andreas fault in the Carrizo Plain of California to study how fault movement shapes the landscapes near rivers. But after spending hours pouring over aerial imagery and remote topographic data, their understanding of how the terrain evolves began to change. They realized that rivers play a more active ...

For the first time, Princess Margaret researchers have mapped out where and how leukemia begins and develops in infants with Down syndrome in preclinical models, paving the way to potentially prevent this cancer in the future. Children with Down syndrome have a 150-fold increased risk of developing myeloid leukemia within the first five years of their life. Yet the mechanism by which the extra copy of chromosome 21 predisposes to leukemia remains unclear. Down syndrome is a genetic disorder caused by a random error in cell division in early human development that results in an extra copy of chromosome 21. This extra copy is what causes the developmental changes and physical ...

Proactive, frequent rapid testing of all students for COVID-19 is more effective at preventing large transmission clusters in schools than measures that are only initiated when someone develops symptoms and then tests positive, Simon Fraser University researchers have found. Professors Caroline Colijn and Paul Tupper used a mathematical model to simulate COVID-19's spread in the classroom and published their research results today in the journal PLOS Computational Biology. The simulations showed that, in a classroom with 25 students, anywhere from zero to 20 students might be infected after exposure, depending on even small adjustments ...

(BOSTON) -- Current clinical interventions for infectious diseases are facing increasing challenges due to the ever-rising number of drug-resistant microbial infections, epidemic outbreaks of pathogenic bacteria, and the continued possibility of new biothreats that might emerge in the future. Effective vaccines could act as a bulwark to prevent many bacterial infections and some of their most severe consequences, including sepsis. According to the END ...

Feeling anxious about health, family or money is normal for most people--especially during the COVID-19 pandemic. But for those with anxiety disorders, these everyday worries tend to heighten even when there is little or no reason to be concerned. Researchers from Indiana University School of Medicine recently studied the behaviors associated with anxiety--published in Psychopharmacology--examining how biological factors impact anxiety disorders, specifically in females. They found that anxiety in females intensifies when there's a specific, life-relevant condition. The team, led by Thatiane De Oliveira Sergio, PhD, postdoctoral fellow in the laboratory of Woody Hopf, PhD, professor of ...

Lesbian, gay, and bisexual Veterans from the Vietnam era report PTSD and poorer mental health more often than their heterosexual counterparts, according to an analysis of data from the Vietnam Era Health Retrospective Observational Study (VE-HEROeS). A greater burden of potentially traumatic events among LGB Veterans, such as childhood physical abuse, adult physical assault, and sexual assault, was associated with the differences. "This study is the first to document sexual orientation differences in trauma experiences, probable PTSD, and health-related quality of life in LGB Veterans using a nationally representative sample," said Dr. John Blosnich, ...