Notícias · Recifes

One tiny mutation may explain how bat viruses become human threats

Scientists found that one tiny genetic change can completely alter how a coronavirus behaves in different species. Comparing SARS-CoV-2 with a closely related bat-only virus, they showed that a single amino-acid difference affects whether the immune system fights back or gets sup

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H5 bird flu detected in second Australia state

Scientists have detected the highly contagious H5 bird flu strain in a second Australian state, the nation's agriculture minister said Wednesday.

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New superconducting X-ray detector is up to 1,000 times more sensitive

A groundbreaking superconducting X-ray spectrometer has begun operation at BESSY II, giving Europe its first TES-based system and boosting photon detection efficiency by up to 1,000 times. The advance enables scientists to explore atomically thin materials, nanostructures, and ul

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‘No one believed it’: how a YouTube video accidentally proved Libya’s sand cat really does

Wildlife photographer Mohammed Almuntasir had no idea what he had found until scientists started to get in touchWhen wildlife photographer Mohammed Almuntasir uploaded 18 seconds of footage to YouTube, he thought little more about the small, pale cat seen digging a hollow in the

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Scientists discover ancient brain cells that help block distractions

Scientists have discovered a tiny group of neurons in an ancient brain region that acts like a built-in focus filter, helping the brain ignore distractions and zero in on what matters most. When researchers temporarily switched off these neurons in mice, the animals became unusua

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Do hyenas eat livestock and rhinos? Behavioral biologists investigate a surprisingly charm

For conservation and the management of human–wildlife conflicts, it is of great interest to know which species are eaten by carnivores. Scientists from the Ngorongoro Hyena Project at the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) analyzed this dynamic for spot

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Scientists discover hidden “footprints of death” that may help viruses spread

Scientists have uncovered a surprising new twist in what happens when cells die. As dying cells break apart, they leave behind tiny “footprints of death” packed with newly discovered particles that help guide the immune system to clean up the remains. But researchers found that i

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Scientists catch classical space-time crystals moving like Majorana quasiparticles

A research team from Hiroshima University, the University of Colorado, and other collaborators have demonstrated that space-time crystals—exotic structures that, under external drive, loop endlessly through both space and time—can be created using everyday liquid-crystal material

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Binary black hole signal probes event horizon region for first time

If, in space, no one can hear you scream, it seems that you can actually hear the sound of a crash when two black holes collide. Using the loudest gravitational wave ever heard, two Australian scientists and colleagues have been the first to witness the previously elusive "event

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Ancient proteins hint at all-female Homo naledi burial site in Rising Star cave system

Scientists have extracted and analyzed the first-ever ancient proteins from the fossils of Homo naledi, revealing a potential all-female burial site. The study, published in the journal Cell, raises the possibility that South Africa's famous Rising Star Cave system could represen

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Heavy rain may be driving tire pollution into Florida waterways

Florida International University scientists have, for the first time, detected a toxic tire-derived chemical in Florida waterways and developed a new testing method that makes it easier to find and monitor the pollutant at extremely low levels. The study focuses on 6PPD-quinone (

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CleanFinder brings browser-based genome editing analysis to labs without coding

Genome editing lets scientists rewrite DNA, the instruction manual inside every living cell, with a precision that was unthinkable a generation ago. Technologies such as CRISPR have made this almost routine, and its uses now reach far beyond medicine, from engineering hardier cro

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