Eurekalert

Unmanned aerial vehicles may help emergency crews find those in need and provide situational awareness over a large area. During the 180th ASA Meeting, Macarena Varela from Fraunhofer FKIE will describe how a system using an array of microphones and advanced processing techniques could be a lifesaver for disaster victims. The session, "Bearing Estimation of Screams Using a Volumetric Microphone Array Mounted on a UAV," will take place Tuesday, June 8.

In cases of severe varicose vein disease, dilated veins are usually removed or destroyed. However, when patients later need a bypass due to circulatory problems, the large blood vessels are then not available as a substitute. In a multicenter study led by Dr. Dominic Mühlberger from the Vascular Surgery Department at Ruhr-Universität Bochum's St. Josef Hospital, researchers tested a vascular preservation therapy developed in-house.

Converting Central American tropical forests into agricultural land is changing the color and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new Southampton-led study has shown.

New insight on the link between a gene called SORBS2 and congenital heart disease has been published in eLife, with findings that may help explain the cause of the disease in some patients.

For the first time, a unique study conducted at Lund University in Sweden has tracked the meteorite flux to Earth over the past 500 million years. Contrary to current theories, researchers have determined that major collisions in the asteroid belt have not generally affected the number of impacts with Earth to any great extent.

A new robot -- named WomBot -- that can be used to explore and study wombat burrows is presented in a study published in the journal SN Applied Sciences.

New molecules, developed by researchers at Linköping University, Sweden, have promising properties as possible drugs against epilepsy. A study published in the journal Epilepsia shows that several of the molecules have antiseizure effects.

A research group at the University of Cordoba is developing a mathematical algorithm for the diagnosis of different stages of Parkinson's, a tool to support medical decisions that could help improve treatments against this disease.

New research from the University of Minnesota Medical School and colleagues at the Mayo Clinic reveals a possible new approach to preventing death and severe disease in elderly people infected with SARS-CoV-2.

Blue whales may be the biggest animals in the world, but they're also some of the hardest to find. A team of scientists led by UNSW Sydney are confident they've discovered a new population of pygmy blue whales, the smallest subspecies of blue whales, in the Indian Ocean. And it was the whales' powerful singing -- recorded by underwater bomb detectors -- that gave them away.

Variants of viruses, such as that causing COVID-19, can now be quickly studied in the laboratory, even before they emerge in nature and become a major public health challenge.

Accelerated cognitive decline in patients with and without existing dementia is one of the most disturbing outcomes of hospitalizations for older adults, affecting at least 2.6 million Americans every year. But the condition, known as delirium, is believed to be preventable in up to 40% of hospital-acquired cases, and researchers at UC San Franciso wanted to see if simple tweaks, like avoiding nighttime interruptions to promote sleep, nixing certain prescription drugs, and promoting exercise and social engagement, could decrease its incidence.

The study which targeted postmenopausal women who are at high risk for primary osteoporosis found that if any of the following is true, TST <= 1.30 and BMI <= 23.4, TST <= 1.32 and BMI <= 22.4, TST <= 1.34 and BMI <= 21.6, or TST < 1.24 and any BMI, you are more than five times more likely to have osteoporosis than someone who is not.

A team of researchers from Nanyang Technological University, Singapore (NTU Singapore), Ngee Ann Polytechnic, Singapore (NP), and the National Heart Centre Singapore (NHCS) has invented a tool that could speed up the diagnosis of cardiovascular diseases.

Minerals are inorganic substances, whereas enzymes are organic substances (e.g., proteins). However, many types of Earth-abundant minerals exhibit intrinsic enzyme-like activities when their particles decrease to the nanometer (nm) scale (so called "mineral nanozymes"). The discovery of nanomaterials as new enzyme mimetics has changed the traditional idea that nanomaterials are chemically inert in Earth systems. Now researchers in Tianjin discuss the critical roles played by nanozymes in environmental biogeochemical cycles.

Supermassive black holes (SMBH) occupy the center of galaxies, with masses ranging from one million to 10 billion solar masses. Some SMBHs are in a bright phase called active galactic nuclei (AGN).

Susceptibility of chronic obstructive pulmonary disease (COPD) patients to cardiovascular autonomic dysfunction associated with exposure to metals in particles with aerodynamic diameter ? 2.5 μm (PM2.5) remains poorly evidenced. Recently, based on a panel study in Beijing, China, Chinese researchers recruited both COPD patients and healthy controls and used heart rate (HR) as an index of cardiovascular autonomic function. Their findings indicate that COPD could exacerbate HR difference following exposure to metals in PM2.5.

The detailed structure of glass has always been a major mystery in science. A research team co-led by scientists at City University of Hong Kong (CityU) has successfully discovered that the amorphous and crystalline metallic glass have the same structural building blocks. And it is the connectivity between these blocks that distinguishes the crystalline and amorphous states of the material. The findings shed light on the understanding of glass structure.

Researchers from China described a comprehensive landscape of RNA editing events in LUAD by integrating transcriptomic and genomic data and defined a new prognosis-related and chemotherapy-sensitive subtype of LUAD patients based on RNA editing sites.

Researchers have developed a new forecasting method that provides more precise tropical cyclone intensity forecasts.