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| The ‘equal-opportunity jerk’ defense: Rudeness can obfuscate gender bias Posted: 08 Mar 2022 12:56 PM PST If you're an 'equal-opportunity jerk,' does that mean you can't also be sexist? New research shows that many people think so -- and consider men to be gender blind when they're rude, condescending, and berating to women and men equally. |
| Physical activity may protect your brain as you age Posted: 08 Mar 2022 12:56 PM PST We all know we should exercise and eat healthy foods. But doing that isn't just good for maintaining your figure as you age. New research shows that physical activity could help protect your cognitive abilities as you age. And it doesn't have to be intense exercise to make an impact. |
| Posted: 08 Mar 2022 12:56 PM PST A team of student researchers has discovered human microRNA genes not shared with any other primate species and which may have played an important role in the unique evolution of the human species. The students found at least three families of microRNA genes on chromosome 21. |
| Earthquake fracture energy relates to how a quake stops Posted: 08 Mar 2022 12:56 PM PST By examining earthquake models from a fresh perspective, engineers now show that the earthquake fracture energy -- once thought to relate to how faults in the Earth's crust weaken -- is related to how quakes stop. |
| New dental tool prototype can spot the acidic conditions that lead to cavities Posted: 08 Mar 2022 12:56 PM PST Researchers have shown that a dental tool they created can measure the acidity built up by the bacteria in plaque that leads to cavities. |
| Research advances understanding of DNA repair Posted: 08 Mar 2022 12:56 PM PST A researcher has made a discovery that alters our understanding of how the body's DNA repair process works and may lead to new chemotherapy treatments for cancer and other disorders. Researchers discovered that base excision repair has a built-in mechanism to increase its effectiveness -- it just needs to be captured at a very precise point in the cell life cycle. |
| Treating heart attacks with a medium chain fatty acid Posted: 08 Mar 2022 11:11 AM PST Heart attacks mean energy deprivation. Could a fatty acid found in energy drinks, then, help recovery? A preclinical study explores this question. |
| Posted: 08 Mar 2022 10:05 AM PST People with dementia struggle to adapt to changes in their environment because of damage to areas of the brain known as 'multiple demand networks', highly-evolved areas of the brain that support general intelligence, say scientists. |
| NASA's NICER telescope sees hot spots merge on a magnetar Posted: 08 Mar 2022 10:05 AM PST For the first time, NASA's Neutron star Interior Composition Explorer (NICER) has observed the merging of multimillion-degree X-ray spots on the surface of a magnetar, a supermagnetized stellar core no larger than a city. |
| Anticipation and accents: Talking like a southerner even if you're not Posted: 08 Mar 2022 09:01 AM PST Linguistic convergence refers to temporary (and often subtle) shifts in speech to sound more similar to those around us. A new study shows that even our expectations about how other people might speak (rather than the speech itself) is enough to shape our own speech patterns. |
| Distinct biological ages across individuals’ various organs and systems Posted: 08 Mar 2022 08:58 AM PST It's common to say that someone looks either younger or older than their chronological age, but aging is more than skin deep. Our various organs and systems may have different ages, at least from a biological perspective. Investigators used biomarkers, statistical modeling, and other techniques to develop tools for measuring the biological ages of various organ systems. Based on their findings, the researchers report that there are multiple 'clocks' within the body that vary widely based on factors including genetics and lifestyle in each individual. |
| Placenta plays active part in transferring vitamin D to fetus during pregnancy Posted: 08 Mar 2022 08:58 AM PST Scientists have shed new light on the role of the placenta in managing the relationships between maternal vitamin D and fetal development, according to a new study. |
| How animal swarms respond to threats Posted: 08 Mar 2022 08:58 AM PST With the help of microrobots, physicists decode how swarms of animals respond effectively to danger. |
| Hurricanes and other tropical cyclones linked to rise in U.S. deaths from several major causes Posted: 08 Mar 2022 08:57 AM PST Over recent decades, hurricanes and other tropical cyclones in the U.S. were associated with up to 33.4 percent higher death rates from several major causes in subsequent months. The study exemplifies how far-reaching and varied the hidden costs to life could be from climate-related disasters and climate change. Until now, there had been a critical knowledge gap about cause-specific tropical cyclone mortality risks from a large-scale study covering the entire U.S. across multiple decades. |
| Astrocyte networks in the mouse brain control spatial learning and memory Posted: 08 Mar 2022 08:56 AM PST Astrocytes form large networks of interconnected cells in the central nervous system. When these cell-to-cell couplings are disrupted in the brain of adult mice, the animals are no longer able to store spatial information. The astrocytes network is thus essential for spatial learning and memory formation, as neuroscientists now show. |
| Posted: 08 Mar 2022 08:56 AM PST New research shows that the oldest ancestors of the group of animals that includes octopuses and vampire squids had not eight but 10 arms. The study, which describes a new species of vampyropod based on a 328-million-year-old fossil that had not been previously described, pushes back the age of the group by nearly 82 million years. |
| Self-administered screening can provide benefits for patients and providers Posted: 08 Mar 2022 08:56 AM PST Doctors wondered if patients might be more forthcoming with honest information by completing a self-administered questionnaire on a tablet computer instead of responding verbally to nursing staff. In a recent study, the tablet screening detected twice as many people with depression, fall risk or intimate partner violence compared to usual in-person screening by nursing staff. |
| Migrating through small spaces makes cancer cells more aggressive Posted: 08 Mar 2022 08:56 AM PST Squeezing through tight spaces makes cancer cells more aggressive and helps them evade cell death, shows a new study. |
| Intermingling between populations may contribute to HIV spread Posted: 08 Mar 2022 08:56 AM PST Sexual partnerships between individuals from different communities may help explain why some community-based HIV prevention efforts were moderately effective, shows a new study. |
| Toward ever-more powerful microchips and supercomputers Posted: 08 Mar 2022 07:51 AM PST A look at the process to extend 'Moore's law,' which has doubled the number of transistors that can be packed on a microchip roughly every two years, and develop new ways to produce more capable, efficient, and cost-effective chips. |
| Single protein prompts mature brain cells to regenerate multiple cell types Posted: 08 Mar 2022 07:28 AM PST A single protein can reverse the developmental clock on adult brain cells called astrocytes, morphing them into stem-like cells that produce neurons and other cell types, UT Southwestern researchers report in a new study. The findings might someday lead to a way to regenerate brain tissue after disease or injury. |
| Stress damages the movement centers in the brain Posted: 08 Mar 2022 07:28 AM PST Stress seems to have a negative effect on the learning of movements - at least in mice. This is the conclusion of a recent study. According to the study, the neurons of rodents lose some of their contacts with other neurons after stress. The animals also developed motor deficits. The results may be useful for earlier diagnosis and improved therapy of stress-related diseases such as depression. They also document that stress leaves traces in the brain - possibly permanent ones. |
| Biologists observe a molecular 'hand-off' that plays a key role in reproduction Posted: 08 Mar 2022 07:28 AM PST Novel research on the life history of fruit fly sperm demonstrates molecular continuity between the male and female reproductive tracts. |
| Tiny mite triggers domino effect in the high Andes Posted: 08 Mar 2022 07:28 AM PST What happens when a disease disrupts a protected ecosystem so forcefully that cascading consequences are felt by nearly all wildlife and plants within it? A study examines how the mange outbreak among vicuñas restructured tightly linked food-chain interactions that were previously driven by pumas. |
| Leaks an untapped opportunity for water savings Posted: 08 Mar 2022 07:28 AM PST The first large-scale assessment of utility-level water loss in the United States found that leak reduction by utilities can be the most cost-effective tool in an urban water manager's toolkit, provided utility-specific approaches are used. California is among the first in the world to require water utilities to regulate their water losses. |
| Reading builds resilience among at-risk kids Posted: 08 Mar 2022 07:28 AM PST New research from the shows that reading aloud can triple a child's resilience at school, particularly for children at-risk. |
| Ancient Mexican city endured for centuries without extremes in wealth and power Posted: 08 Mar 2022 07:28 AM PST An ancient Mexican city, Monte Albán, was the biggest settlement in the region and lasted for more than a thousand years. Some hypotheses for the city's success are that people were drawn to fertile farmland in the area, or were forced to move there by powerful rulers. This new study challenges those ideas by showing that the land isn't especially good for farming, and the society didn't have the highly concentrated wealth and power that would come with a powerful ruler forcing people to move there. Instead, the city had a more collective form of government that could have attracted people to the city. |
| New research demonstrates high value 'injurious weeds' can bring to pollinators Posted: 08 Mar 2022 07:28 AM PST New research compares the biodiversity value of plants classed as 'injurious weeds' against those stipulated by DEFRA for pollinator targeted agri-environmental options. The findings show that the abundance and diversity of pollinators visiting weed species are far higher than DEFRA recommended plants. |
| Engineered light waves enable rapid recording of 3D microscope images Posted: 08 Mar 2022 07:28 AM PST Researchers have developed a new method for rapid 3D imaging. Instead of having to scan repeatedly in 2D, the researchers proposed a one-scan technique that uses a light needle to process at depth and laterally. |
| Astronomers discover largest molecule yet in a planet-forming disc Posted: 08 Mar 2022 07:28 AM PST Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, researchers have for the first time detected dimethyl ether in a planet-forming disc. With nine atoms, this is the largest molecule identified in such a disc to date. It is also a precursor of larger organic molecules that can lead to the emergence of life. |
| Global warming projected to increase health burden from hyponatremia Posted: 08 Mar 2022 07:27 AM PST Global warming is likely to increase the number of people requiring hospitalization due to critically low sodium levels in the blood, a condition known as hyponatremia. A new study projects that a temperature rise of 2 degrees Celsius would increase the burden on hospitals from hyponatremia by almost 14 percent. |
| Lab-grown pig heart tissue could help replace live animals in heart disease research Posted: 08 Mar 2022 07:27 AM PST A new way to replicate what happens inside the heart after cardiac arrest could open new avenues for the study of heart regeneration whilst reducing the use of live animals in research, according to a new study. |
| Nordic diet lowers cholesterol and blood sugar – even if you don't lose weight Posted: 08 Mar 2022 07:27 AM PST A healthy Nordic diet can prevent a range of diseases. Until now, the health benefits attributed to a Nordic diet by researchers primarily focused on weight loss. But in a new study, researchers found clear evidence that a Nordic diet can lower blood sugar and cholesterol levels even without weight loss. In particular, they point to the composition of dietary fats as a possible explanation for the diet's positive effects. |
| Lower chance of pregnancy and childbirth after IVF with one ovary Posted: 08 Mar 2022 07:27 AM PST Women who have had one ovary surgically removed (unilateral oophorectomy) are less likely to become pregnant after in vitro fertilization and give birth to fewer babies than women with both ovaries. That is according to an extensive meta-analysis. |
| Posted: 08 Mar 2022 07:27 AM PST What is the significance of the sclera of our eyes? A question which researchers have been interested in for some time now. Recently a research team led by a comparative psychologist has succeeded in deciphering the mystery: The white of the eye contributes decisively to the visibility of directions of gaze through its basic color properties. |
| Digital toolbox may help diagnose dementia earlier Posted: 08 Mar 2022 07:27 AM PST Detecting cognitive changes early in the onset of dementia would be a game-changer for thousands impacted by the disease and would allow for interventions well before significant brain changes occur. While cognitive function is often measured using paper and pencil tests with scores calculated by the number of correct answers, this number (score) omits a lot of information about the process a person uses to answer a question that might reveal important information about their brain function. |
| Unusual partners aid blood vessel growth Posted: 08 Mar 2022 07:27 AM PST Insufficient oxygen to an area like the heart or legs, called hypoxia, is a cue to our bodies to make more blood vessels, and scientists have found some unusual partners are key to making that happen. They've found that two receptors on the surface of those cells come together then dive inside to enable the new growth, called angiogenesis, scientists report. |
| Analysis suggests China has passed U.S. on one research measure Posted: 08 Mar 2022 07:27 AM PST After decades of dominance by the United States, a new measure suggests that China edged the U.S. in 2019 on one important measurement of national research success. |
| Study of rare disease reveals insights on immune system response process Posted: 08 Mar 2022 07:27 AM PST In laboratory experiments involving a class of mutations in people with a rare collection of immune system disorders, researchers say they have uncovered new details about how immune system cells respond to disease-causing bacteria, fungi and viruses such as SARS-CoV-2. |
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