News tagged with uv radiation
Safer air-conditioner refrigerant helps reverse rapid ozone-layer losses of past decades
If the approaching summer has you calling for an air-conditioning repair, you'll have a personal experience with one of the world's most successful global environmental efforts.
Apr 04, 2012 |
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Organic compounds found in proto-planetary disks
(PhysOrg.com) -- A new study from scientists in the US has reported that organic compounds could be formed in proto-planetary disks, and could have seeded the development of life in our own and other planetary ...
Mar 30, 2012 |
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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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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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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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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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Lack of methane to blame for planet's 'smell'
Giant planet GJ 436b in the constellation Leo is missing something. Would you believe swamp gas?
Space & Earth / Space Exploration
Sep 14, 2010 |
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Researchers: English ivy may give sunblock a makeover
When Mingjun Zhang was watching his son play in the yard, he was hit with a burning question: "What makes the ivy in his backyard cling to the fence so tightly?"
Nanotechnology / Bio & Medicine
Jul 19, 2010 |
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Melanoma rates among minorities in Florida differ from national trends
Racial and ethnic trends in the skin cancer melanoma appear different in Florida than from national estimates, with higher incidence rates among Hispanic men and non-Hispanic black women but lower rates among Hispanic women, ...
Jul 19, 2010 |
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Research questions amphibians' UV vulnerability
(PhysOrg.com) -- New research recently conducted by two ecologists, Wendy Palen at Simon Fraser University and Daniel Schindler at the University of Washington, finds that Pacific Northwest amphibian species ...
May 23, 2010 |
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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.
