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Tag: signals

Whisker simulation shows how follicles send sensory touch signals to mammal brains

Whisker simulation shows how follicles send sensory touch signals to mammal brains

Science
April 1 (UPI) -- For many animals, whiskers offer what fingers provide humans -- invaluable sensory information. Though aware of their importance, scientists have struggled to understand exactly how whiskers work. Part of the problem is that the most important part of the whisker, as a source of sensory signals, is hidden beneath the skin inside the follicle. Advertisement To better understand the mechanics of mammalian whiskers, researchers combined new anatomical observations with sophisticated digital simulations. The analysis, detailed Thursday in the journal PLOS Computational Biology, suggests the base of the whisker forms an S-shaped bend inside the follicle when it brushes against an object, pulling on some sensory cells and pushing on others. "Although researchers have examined ...
Scientists identify brain signals of fading consciousness during anesthesia, sleep

Scientists identify brain signals of fading consciousness during anesthesia, sleep

Science
Dec. 29 (UPI) -- What happens inside the human brain when consciousness fades away during anesthesia and normal sleep? Scientists have long estimated that the answer to such a question might provide clues to the neurological origins of consciousness. Until now, researchers had struggled to separate the brain patterns associated specifically with the loss of consciousness and the more generalized neural effects of falling asleep or being put to sleep. Advertisement For the first time, scientists have successfully isolated the specific brain changes related to losing or gaining consciousness. For the study, published this week in the Journal of Neuroscience, researchers used positron emission tomography, or PET scans, to monitor the brain activity of healthy volunteers experiencing differen...
Paris 2024: UK Sport funding decisions signals shift towards greater diversity and winning ‘the right way’

Paris 2024: UK Sport funding decisions signals shift towards greater diversity and winning ‘the right way’

Sports
UK Sport decisions on funding for Paris 2024 signal a move towards greater diversity and winning "the right way", says chair Dame Katherine Grainger. British sports will receive £352m for the Olympic and Paralympic Games in Paris, split across 43 sports.New additions like surfing and skateboarding have been funded while some traditional sports have seen their budgets reduced."It is a really important and exciting moment," Grainger told BBC Sport."There are two key things - broader diversity and broader engagement and that winning is still important but how we win is equally crucial to everyone in the system."Everyone is on board to make sure that we win in the right way and that it isn't just a nice tagline to have."This isn't just a phase it is an evolution of the system and the how [we w...
Coronavirus: Trump’s signals ‘not helpful’, says Fauci

Coronavirus: Trump’s signals ‘not helpful’, says Fauci

World
Media playback is unsupported on your device Top US virus researcher Dr Anthony Fauci has called President Donald Trump's sharing of a video which included claims masks are not needed to fight Covid-19 "not helpful".The video promotes a drug widely disproven to be effective in treating Covid-19.Dr Fauci's interview with the BBC's Katty Kay comes as the US is about to hit 150,000 deaths due to the pandemic.The virus continues to spread rapidly in the US as states lock down again.President Trump was among social media users who shared video on social media late on Monday of a group called America's Frontline Doctors advocating hydroxychloroquine as a Covid-19 treatment and saying that masks and shutdowns are not effective in combating coronavirus.Facebook an...
FAA warns military training exercise could jam GPS signals in southeast, Caribbean

FAA warns military training exercise could jam GPS signals in southeast, Caribbean

Business
Jan. 17 (UPI) -- A military training exercise scheduled for this weekend could jam GPS signals in the Southeast and Caribbean, according to the Federal Aviation Administration. An FAA advisory warns pilots could experience "unreliable or unavailable GPS signal" during a training exercise scheduled for Jan. 16 through Jan. 24. The U.S. Navy's Carrier Strike Group Four will be conducting GPS testing exercises off the coast of Georgia, causing likely disruptions as low as 50 feet above ground level within 207 miles of the test location -- and as high as 40,000 feet within 460 miles. "The Global Positioning System (GPS) constellation is provided by the Department of Defense (DoD). Routine testing is conducted on the GPS," an FAA representative told Military Times. "The FAA issues advisories ...