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472 notícias encontradas para "scientist"
Why scientists fear we're missing evidence of extraterrestrial life
Why scientists fear we're missing evidence of extraterrestrial life
Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden biosignatures, limitations in detection technology, and assumptions about what life should look like can all create dangerous false negatives. The research
New calculator reveals whether you should really worry about statin side effects
New calculator reveals whether you should really worry about statin side effects
Scientists at the University of Oxford have created a calculator that predicts a person's individual risk of serious muscle disorders from statin medications. Their analysis found that more than 98% of people who qualify for statins are at low risk for these rare complications, d
Scientists may have finally found how Alzheimer's spreads through the brain
Scientists may have finally found how Alzheimer's spreads through the brain
A common brain protein may be giving Alzheimer’s disease an unexpected way to spread, carrying toxic Tau proteins from damaged neurons into healthy ones. By blocking these harmful protein packages before they reach new cells, researchers believe it may one day be possible to slow
Scientists say creatine may help fight depression
Scientists say creatine may help fight depression
Creatine is best known as a muscle-building supplement, but scientists are now investigating whether it could also help treat depression by boosting the brain's energy supply. A new review examined five randomized clinical trials involving 238 participants and found mixed results
Researchers find millions more insect species
Researchers find millions more insect species
Scientists estimate at least between 14 and 30 million insect species, not just six million. O recorte ajuda a contextualizar a pauta dentro de Agro.
Houston power plant emerges as dominant source of cloud-forming aerosols
Research by atmospheric scientists at UC San Diego's Scripps Institution of Oceanography and colleagues pinpointed an individual coal-fired power plant in Houston as the main source of particles most likely to encourage the formation of clouds around the metropolitan area.
Foto: Aleksander Dumała / Pexels
Spatially explicit population model can improve pesticide risk assessments in agricultural
A team of international scientists and risk assessment experts has developed a foundational blueprint for an innovative population model designed to improve environmental safety testing for agricultural pesticides. The tool, named APODEMUS (A POpulation Dynamical spatially Explic
Scientists teach human cells to compute like tiny computers
Scientists teach human cells to compute like tiny computers
Researchers have developed a way to program human cells to perform calculations and make autonomous decisions, similar to how computer chips work.
Mice actively seek better views to make visual decisions, virtual reality experiments show
Mice actively seek better views to make visual decisions, virtual reality experiments show
Animals don't experience the world passively. A hawk tilts its head to track prey. A person leans forward to read a sign. Scientists call this "active sensing": moving the body to gather better information. A specific version of active sensing is infotaxis, which describes how an
Scientists discover a completely different way to fight viruses
Scientists discover a completely different way to fight viruses
Researchers have uncovered an unexpected antiviral defense system in sea anemones that works very differently from the one humans use. The discovery suggests evolution developed multiple ways to combat viruses, challenging long-held ideas about how animal immune systems evolved.
Sound waves reconstruct Alaska fireball path after cameras miss key details
When a bright fireball streaked across the Alaska sky last spring, the usual tools scientists rely on to track such events—cameras and satellites—did not provide a detailed picture. But the meteoroid left behind something else: low-frequency sound waves that traveled hundreds of
Layered ZnPS₃ emits single photons, opening new path for quantum chips
Scientists from the Faculty of Physics at the University of Warsaw, in collaboration with teams from the National University of Singapore and Radboud University in the Netherlands, have observed single-photon emission from layered two-dimensional material ZnPS₃. This discovery re