Men now have one more compelling reason to get a COVID-19 vaccine—doctors suspect the new coronavirus could make it hard to perform in the bedroom.
May 13, 2021
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China has been the origin of several major viral epidemics over recent decades, with the current outbreak of a new deadly coronavirus emerging in the central city of Wuhan.
Jan 22, 2020
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A team of researchers at Institut Pasteur reports evidence that suggests the SARS-CoV-2 virus is able to enter the brain by using nose cells to make nanotube tunnels. In their paper published in the journal Science Advances, ...
Metastasis - or the spread of cancer from one part of the body to other parts - accounts for more than 90 percent of cancer-related deaths. Although the cells that seed metastasis and the sites that they tend to travel to ...
Dec 16, 2015
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Many foods—whether it's the mozzarella on your favorite pizza, the olive oil in salad dressing or hollandaise sauce during asparagus season—contain lots of fat. The fatty acids in these foods are among the essential nutrients ...
Mar 17, 2020
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How does consciousness arise? Researchers suspect that the answer to this question lies in the connections between neurons. Unfortunately, however, little is known about the wiring of the brain. This is due also to a problem ...
Feb 28, 2017
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Some people are better protected than others against urinary tract infections. This may be because their bodies produce more of a protein called uromodulin. An interdisciplinary research team has now found out exactly how ...
Jul 2, 2020
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Propranolol, a drug that is efficacious against infantile haemangiomas ("strawberry naevi," resembling birthmarks), can also be used to treat cerebral cavernous malformations, a condition characterized by misshapen blood ...
Feb 23, 2021
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Researchers at the Georgia Institute of Technology have found a detection method that could revolutionize cancer treatment by showing how cancers metastasize and what stage they are.
Aug 12, 2022
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Electrical synapses are omnipresent and yet hardly explored. They are part of the brain of almost every animal species, yet they remain usually invisible even under the electron microscope.
Apr 5, 2022
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An electron microscope is a type of microscope that uses a particle beam of electrons to illuminate a specimen and create a highly-magnified image. Electron microscopes have much greater resolving power than light microscopes that use electromagnetic radiation and can obtain much higher magnifications of up to 2 million times, while the best light microscopes are limited to magnifications of 2000 times. Both electron and light microscopes have resolution limitations, imposed by the wavelength of the radiation they use. The greater resolution and magnification of the electron microscope is because the wavelength of an electron; its de Broglie wavelength is much smaller than that of a photon of visible light.
The electron microscope uses electrostatic and electromagnetic lenses in forming the image by controlling the electron beam to focus it at a specific plane relative to the specimen. This manner is similar to how a light microscope uses glass lenses to focus light on or through a specimen to form an image.
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