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ScienceDaily: Top Science News |
| More alcohol, less brain: Association begins with an average of just one drink a day Posted: 04 Mar 2022 06:03 AM PST Even light-to-moderate drinking is associated with harm to the brain, according to a new study. Researchers analyzed data from more than 36,000 adults that found a link between drinking and reduced brain volume that begins at an average consumption level of less than one alcohol unit a day -- the equivalent of about half a beer -- and rises with each additional drink. |
| New species of stegosaur is oldest discovered in Asia, and possibly the world Posted: 03 Mar 2022 06:58 PM PST Relatively small, but fearsome-looking stegosaur measured about 2.8 meters (9 feet) from nose to tail -- but scientists can't tell whether the remains are those of an adult or juvenile. |
| Mummification in Europe may be older than previously known Posted: 03 Mar 2022 06:56 AM PST Mummification of the dead probably was more common in prehistory than previously known. This discovery is made at the hunter-gatherer burial sites in the Sado Valley in Portugal, dating to 8,000 years ago. A recent study presents new evidence for pre-burial treatments such as desiccation through mummification, which has not been suggested for the European Mesolithic before. |
| Effects of noise on marine life Posted: 02 Mar 2022 04:00 PM PST New research shows turtles can experience temporary hearing loss from an excess of underwater noise. This phenomenon, previously noted in other marine animals such as dolphins and fish, was not widely understood for reptiles and underscores another potential risk for aquatic turtles. This high volume of sound, referred to as underwater noise pollution, can be caused by passing ships and offshore construction. |
| The physics of fire ant rafts could help engineers design swarming robots Posted: 02 Mar 2022 03:59 PM PST Fire ants survive floods by forming rafts made up of thousands of wriggling insects. New research reveals how these creepy-crawly lifeboats change shape over time. |
| 'Drug factory' implants eliminate ovarian, colorectal cancer in mice Posted: 02 Mar 2022 12:03 PM PST Bioengineers have shown they can eradicate advanced-stage ovarian and colorectal cancer in mice in as little as six days with a treatment that could be ready for human clinical trials later this year. |
| Gene editing gets safer thanks to redesigned Cas9 protein Posted: 02 Mar 2022 08:06 AM PST Scientists have redesigned a key component of a widely used CRISPR-based gene-editing tool, called Cas9, to be thousands of times less likely to target the wrong stretch of DNA while remaining just as efficient as the original version, making it potentially much safer. |
| Archaeologists discover innovative 40,000-year-old culture in China Posted: 02 Mar 2022 08:05 AM PST When did populations of Homo sapiens first arrive in China and what happened when they encountered the Denisovans or Neanderthals who lived there? A new study opens a window into hunter-gatherer lifestyles 40,000 years ago. Archaeological excavations at the site of Xiamabei in the Nihewan Basin of northern China have revealed the presence of innovative behaviors and unique toolkits. |
| Powerful warm winds seen blowing from a neutron star as it rips up its companion Posted: 02 Mar 2022 08:05 AM PST Black holes and neutron stars are some of the most extreme objects in the Universe, ripping up neighboring stars. But they are messy eaters and much of they take in gets flung back into space. Scientists have now observed a neutron star blasting out warm and cold wind as it devoured another star. The findings shed new light on the behavior of these stellar cannibals and how they influence the evolution of galaxies. |
| How to make a 'computer' out of liquid crystals Posted: 02 Mar 2022 06:27 AM PST Researchers have shown for the first time how to design the basic elements needed for logic operations using a kind of material called a liquid crystal -- paving the way for a completely novel way of performing computations. |
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