Researchers from the University of Alberta (U of A) are working to improve the only oral antiviral approved for COVID-19 infections in the hopes of expanding its use in populations that need it most.
Jan 22, 2024
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Surgical tumor removal remains one of the most common procedures during cancer treatment, with about 45% of cancer patients undergoing this surgery at some point. Thanks to recent progress in imaging and biochemical technologies, ...
Mar 29, 2023
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If human eyes came in a package, it would have to be labeled "Natural product. Some variation may occur." Because the million-plus retinal ganglion cells that send signals to the human brain for interpretation don't all perform ...
Sep 15, 2020
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An international team of researchers has used lidar to track mosquito activity levels in Africa as part of an effort to combat malaria. In their paper published in the journal Science Advances, the group describes how the ...
A quirk of the body clock that lures some people to sleep at 8 p.m., enabling them to greet the new day as early as 4 a.m., may be significantly more common than previously believed.
Aug 6, 2019
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Physicians may soon have a new way to screen patients for Barrett's esophagus, a precancerous condition usually caused by chronic exposure to stomach acid. Researchers at the Wellman Center for Photomedicine at Massachusetts ...
Jan 13, 2013
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Chronic exposure to dim light at night can lead to depressive symptoms in rodents -- but these negative effects can be reversed simply by returning to a standard light-dark cycle, a new study suggests.
Jul 24, 2012
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(Medical Xpress) -- We all know that our pupils contract when our eyes are exposed to increases in the brightness of light. The reason is to both protect the delicate inner workings of our eyes and to help provide for optimum ...
Vision is amazing because it seems so mundane. Peoples' eyes, nerves and brains translate light into electrochemical signals and then into an experience of the world around them. A close look at the physics of just the first ...
Nov 10, 2011
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All life on Earth is affected by the day-night cycle resulting from the planet's rotation. In line with this, humans are naturally awake during daylight hours, and sleep at night when it is dark. Being awake during the day ...
Jan 17, 2024
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