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A newly identified Arctic Ocean bacterium may have an unusual way of making the building blocks it needs to grow. Using acetone, a common chemical in seawater, the bacteria incorporate carbon dioxide (CO₂) into their metabolisms, allowing them to survive in waters where nutrients
WA Police are using live facial recognition technology to help identify and arrest criminals, with significant results. The trial is the first of its kind in Australia.
People experiencing unsheltered homelessness in Salt Lake City face hours of dangerous daytime heat and hot nights that offer little relief, according to a University of Utah study. Researchers also found that tree shade helps people feel measurably cooler, making it a critical r
Scientists discover new Alzheimer’s drug that repairs DNA damage and reduces brain inflammation and more — today's student signal.
Scientists have discovered that a drug originally developed for spinal cord injuries can tackle several key features of Alzheimer’s disease, including DNA damage and inflammation. Already tested for initial safety in humans, the experimental treatment could offer a faster path to
An international team led by researchers at Queen's University Belfast has made a discovery that has eluded astronomers for decades. Beginning in 1906, telescope observations revealed a population of asteroids leading and trailing Jupiter, which came to be known as the "Trojan" a
The world is a far louder and more distracting place than when humans first evolved. But there's increasing evidence that experiencing nature can help restore attention lost to modern distractions, known as "directed attention fatigue."
A research team wanted to better understand how the forces between particles inside a material change. They discovered that by confining one-dimensional classical spin chains inside a mirror box cavity with light, they could force these magnetic particles to organize and undergo
A study co-led by a University of California, Riverside, biomedical scientist has identified new targets for coronavirus antiviral drugs, including treatments that may be less vulnerable to the rapid evolution of these viruses.
Some genetic diseases leave cells without a crucial protein. One possible treatment is to persuade genes already inside those cells to work harder, but the necessary machinery can be difficult to deliver, especially when researchers want to target several genes at once. A new com
Despite the complexity of the operation, ERMIS-3, an 8U CubeSat developed by the National and Kapodistrian University of Athens, has established a link with an optical ground station, marking an important step in validating optical communications on small satellites. The demonstr
As a high school or college student, you might sometimes find yourself putting off studying to do other tasks even when an important assessment deadline or exam is looming over you.
If a dangerous asteroid were headed toward Earth, one defense could be a nuclear detonation to blast one side with X-rays and nudge it off course. But new simulations suggest that for a lumpy, irregular asteroid, exactly where those X-rays hit could make a huge difference.
W.E.B. Du Bois' standing as a distinguished social scientist, with a distinguished body of work, has been subjected to the same marginalizing forces he examined in his pioneering scholarship on race, culture and Black social thought.
A newly identified Arctic Ocean bacterium may have an unusual way of making the building blocks it needs to grow. Using acetone, a common chemical in seawater, the bacteria incorporate carbon dioxide (CO₂) into their metabolisms, allowing them to survive in waters where nutrients
High temperatures change how mealybugs feed, and that could help explain why some pasture mealybug infestations do far more damage than others, according to early findings from Texas A&M AgriLife Research scientists.
Physicists have found evidence of a particle decay so rare that it is expected to occur only around once in every 10 billion "beauty" particles. The result, from the upgraded LHCb experiment at CERN's Large Hadron Collider (LHC), follows a search spanning more than 40 years and b
Recent media reports of alleged sexual assaults by teenage boys draw attention to an uncomfortable truth: Young people sometimes perpetrate harmful sexual behavior against their peers.
Tree planting provides wood, biomass and climate benefits, but the location where those new forests are established matters. An international study by researchers in Spain, Chile and Finland shows that converting nonforested land into planted forests can increase wildfire activit
More than a century after they were excavated from beneath Cairo, almost 3,000 stone tools from Heliopolis show that specialized work was already reshaping village life before Egypt became a state.
Astrophysicists think that the supermassive black holes (SMBH) we see in the modern universe are the result of a long, drawn-out process. That process is referred to as the hierarchical black hole mergers framework. It explains how some SMBHs can reach such staggering masses. Som
Yale research scientist Saúl Domínguez-Guerrero didn't set out to catch "evolution in the act" when he traveled to the Caribbean with a team of Yale researchers a few years ago. At the time, the team from the lab of evolutionary biologist Martha Muñoz planned to do fieldwork on C
It was a frightening time.
University at Buffalo scientists have found evidence that different species of yeast have shared genes originally acquired from an ancient virus—and the guts and droppings of beetles may have helped make it happen.
