Wastewater created during oil and gas production and disposed of by deep injection into underlying rock layers is the probable cause for a surge in earthquakes in southern Kansas since 2013, a new report concludes.
Nitrate deposits in the Arctic remains high even after the turn of the century, despite environmental policies adopted by neighboring countries in the late 20th century to cut nitrogen oxide (NOx) emissions.
Overfishing and environmental change have pushed abalone species on the US west coast to the edge of extinction. Now a fatal disease threatens their recovery. But new research shows that some abalone species may be less susceptible to the disease than others, providing initial data that could help map where abalone could survive and thrive despite the disease.
Protein nanofibers often have outstanding properties such as a high stability, biodegradability, or antibacterial effect. Artificially creating these fibers is not easy, much less assigning them specific functions. That and how fibers with new properties can be successfully created is now being reported by materials scientists in a new study.
Researchers can now remove a common anxiety drug from recycled water and wastewater, using low-cost titanium dioxide nanofibers. In cities running out of water, removing pharmaceuticals from wastewater in a simple, low cost way is becoming a priority.
Astronomers have confirmed the discovery of the most distant supernova ever detected -- a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the Universe itself.
A person is more likely to get infected by HIV through anal intercourse than vaginal, but no one knows quite why. A new study shows that infection sites could affect the immune system's response to a virus and the way the virus spreads through the body.
Many chemical processes run so fast that they are only roughly understood. To clarify these processes, researchers have now developed a methodology with a resolution of quintillionths of a second. The new technology stands to help better understand processes like photosynthesis and develop faster computer chips.
The genetic cause behind a strain of typhoid's resistance to five classes of antibiotics has been uncovered by scientists at the Wellcome Sanger Institute and their collaborators. There is currently a major outbreak of typhoid fever in Pakistan. This study shows the typhoid strain causing the outbreak acquired an additional piece of DNA to become resistant to multiple antibiotics, including a third-generation antibiotic.
Mars rovers and orbiters have found signs that Mars once hosted liquid water on its surface. Much of that water escaped over time. How much water was lost, and how does the water that’s left move from ice to atmosphere to soil? During its first year of operations, NASA’s James Webb Space Telescope will seek answers. Webb also will study mysterious methane plumes that hint at possible geological or even biological activity.
Allogeneic blood or marrow transplantation recipients are at a significantly higher risk of cognitive impairment in the years post-transplantation, according to a new study. The research helps add a missing piece to a long-unsolved puzzle about post-transplant effects on recipients, specifically that vulnerable subpopulations of similar transplants can benefit from targeted interventions in the years after they receive their lifesaving treatment.
Cheddar Man - a hunter-gatherer who lived 10,000 years ago - had blue eyes, dark colored curly hair and ‘dark to black’ skin pigmentation, according to new research. Cheddar Man is the oldest almost complete skeleton of Homo sapiens ever found in Britain. It was unearthed in 1903 in Gough’s Cave at Cheddar Gorge, Somerset, [...]
A new study shows that both moderate and severe exacerbations in COPD patients are associated with a decline in their physical activity level. Researchers observed that the acute drop in physical activity during a COPD exacerbation has an important and lasting effect.
Cardiologists are in agreement that generally exercise in the mountains is a very good way to prevent or reduce the occurrence of cardiovascular diseases. Nevertheless what about those people who have a pre-existing cardiovascular condition? Under what circumstances is it safe for them to reside or holiday in high mountainous regions, and what rules should they apply to their conduct whilst there?
Astronomers have discovered a supernova that occurred 10.5 billion years ago, when the Universe was less than a quarter of its present age. The record-breaking supernova was detected in 2016 by the Dark Energy Survey (DES), an international collaboration to map several hundred million galaxies in order to find out more about dark energy. Named [...]
An international team of lepidopterists has compiled the most comprehensive evolutionary tree for butterflies to date. The results appear in the journal Current Biology. Dr. Akito Kawahara, a researcher with the Florida Museum of Natural History’s McGuire Center for Lepidoptera and Biodiversity on the University of Florida campus, and co-authors produced a butterfly evolutionary tree [...]