News tagged with uv radiation
Ultraviolet protection molecule in plants yields its secrets
Lying around in the sun all day is hazardous not just for humans but also for plants, which have no means of escape. Ultraviolet (UV) radiation from the sun can damage proteins and DNA inside cells, leading ...
Feb 09, 2012 |
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Scientists elevate little-studied cellular mechanism to potential drug target
For years, science has generally considered the phosphorylation of proteins -- the insertion of a phosphorous group into a protein that turns it on or off -- as perhaps the factor regulating a range of cellular processes ...
Dec 11, 2011 |
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When inflexibility is counterproductive: Mechanism of UV-induced DNA Dewar lesion revealed
Excessive exposure to ultraviolet (UV) radiation of sunlight can result in skin damage and may even induce skin cancers. Irradiation with UV light causes mutations in the DNA, which can interfere with or even inhibit the ...
Nov 28, 2011 |
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Internal skin cancer prevention: Repairing UV damage in the skin
(Medical Xpress) -- Scientists at the Friedrich Miescher Institute for Biomedical Research (FMI) of the Novartis Research Foundation have elucidated the mechanisms underlying the repair of UV-induced damage ...
Nov 24, 2011 |
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IBD patients face increased skin cancer risk
Certain patients with inflammatory bowel disease (IBD) may have an increased risk of skin cancer, which is intensified by the use of immunosuppressant medications , according to two new studies in Gastroenterology, the of ...
Nov 21, 2011 |
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Human skin begins tanning in seconds, and here's how
We all know that human skin tans after days spent in the sun. That relatively slow process has known links to ultraviolet (and specifically UVB) exposure, which leads to tanning only after it damages the DNA of skin cells. ...
Nov 03, 2011 |
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A substance from bacteria can lead to allergy-free sunscreen
As the realisation that radiation emitted by the sun can give rise to skin cancer has increased, so also has the use of sunscreen creams. These creams, however, can give rise to contact allergy when exposed to the sun, and ...
Oct 25, 2011 |
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Vitamin D levels appear to be associated with risk of skin cancer, although relationship is complex
As an individual's level of vitamin D increases, the risk of nonmelanoma skin cancer (NMSC) seems to increase as well, although factors such as ultraviolet (UV) radiation exposure may complicate the relationship, according ...
Aug 15, 2011 |
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More evidence that caffeine lowers risk of skin cancer
There might be a time when instead of just drinking that morning cup of coffee you lather it on your skin as a way of preventing harmful sun damage or skin cancer.
Aug 15, 2011 |
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States consider banning teens from tanning beds
(AP) -- If a proposed law passes, California teens under 18 will need a fake ID to "fake and bake" themselves to a golden brown.
Jun 27, 2011 |
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UK advice on sun creams 'not in the interests of public health,' warns DTB
The strength of sun cream recently recommended by the National Institute for Health and Clinical Excellence (NICE) to stave off sunburn is far too low and "not in the interests of public health," warns the Drug and Therapeutics Bu ...
Jun 01, 2011 |
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Mutant microbes test radiation resistance
Early Earth lacked an ozone layer to act as a shield against high-energy solar radiation, but microbes flourished by adapting to or finding other forms of protection from the higher ultraviolet radiation levels. ...
Space & Earth / Space Exploration
Mar 24, 2011 |
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Tanning bed exposure can be deadly when complicated by medication reactions
Tanning bed exposure can produce more than some tanners may bargain for, especially when they self-diagnose and use the radiation to treat skin eruptions, according to research conducted by the Indiana University School of ...
Mar 01, 2011 |
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How skin cancer cells evade immune system: study
Scientists have pinpointed a molecular mechanism in mice which helps skin cancer cells confound the animal's immune system, according to a study released Wednesday.
Jan 18, 2011 |
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In distant galaxies, new clues to century-old molecule mystery
(PhysOrg.com) -- In a study that pushes the limits of observations currently possible from Earth, a team of NASA and European scientists recorded the "fingerprints" of mystery molecules in two distant galaxies, ...
Jan 11, 2011 |
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Ultraviolet
Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.
UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. As an ionizing radiation it can cause chemical reactions, and causes many substances to glow or fluoresce. Most people are aware of the effects of UV through the painful condition of sunburn, but the UV spectrum has many other effects, both beneficial and damaging, on human health.
For more information about Ultraviolet, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
