News tagged with ultraviolet light

Study reveals novel mechanism by which UVA contributes to photoaging of skin

A study conducted by researchers at Boston University School of Medicine (BUSM) provides new evidence that longwave ultraviolet light (UVA) induces a protein that could result in premature skin aging. The findings demonstrate ...

Diseases, Conditions, Syndromes created Apr 25, 2013 | popularity not rated yet | comments 0

Researchers discover mushrooms can provide as much vitamin D as supplements

Researchers from Boston University School of Medicine (BUSM) have discovered that eating mushrooms containing Vitamin D2 can be as effective at increasing and maintaining vitamin D levels (25–hydroxyvitamin D) as taking ...

Health created Apr 22, 2013 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Mitochondrial metabolic regulator SIRT4 guards against DNA damage

(Medical Xpress)—Healthy cells don't just happen. As they grow and divide, they need checks and balances to ensure they function properly while adapting to changing conditions around them.

Cancer created Apr 05, 2013 | popularity 5 / 5 (4) | comments 2 | with audio podcast

Majority of Missouri tan salons allow pre-teens

A survey of tanning salon operators in Missouri shows that 65 percent would allow children as young as 10 to 12 years old to use tanning beds. That's despite evidence that any tanning bed use increases the risk of all skin ...

Pediatrics created Feb 25, 2013 | popularity not rated yet | comments 0

Gene identified in some melanoma linked to increased resistance to treatment

(Medical Xpress)—Scientists at Queen Mary, University of London have identified a gene present in some melanoma which appears to make the tumour cells more resistant to treatment, according to research ...

Cancer created Feb 19, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Study finds linchpin of skin response to UVA light

Last year, a team of researchers at Brown University discovered that certain skin cells use a light-sensitive receptor found outside of the eye to sense ultraviolet light and quickly begin pumping out melanin ...

Medical research created Jan 21, 2013 | popularity 4.3 / 5 (3) | comments 0 | with audio podcast

Light therapy at bus stops to cheer north Sweden commuters

Bus stops in the northern Swedish town of Umeaa have been fitted with light therapy panels to help commuters fight off the winter blues, the energy company behind the move said Tuesday.

Psychology & Psychiatry created Nov 27, 2012 | popularity 5 / 5 (2) | comments 0

Genes involved in vitamin D generation and destruction may influence colorectal cancer risk in African-Americans

African-Americans are more likely than non-Hispanic whites to have and die from colorectal cancer. Changes in the DNA sequence of genes that affect how the body makes and destroys vitamin D modify the risk for colorectal ...

Cancer created Oct 29, 2012 | popularity not rated yet | comments 0 | with audio podcast

Protecting genes, one molecule at a time

An international team of scientists have shown at an unprecedented level of detail how cells prioritise the repair of genes containing potentially dangerous damage. The research, published in the journal Nature and involv ...

Genetics created Sep 09, 2012 | popularity not rated yet | comments 0 | with audio podcast

Super glue: Tests show that adhesive could improve safety of lasik eye surgery

(Medical Xpress)—Kansas State University researchers have developed a glue mixture that may reduce risks after laser vision correction surgery.

Ophthalmology created Aug 27, 2012 | popularity not rated yet | comments 0 | with audio podcast

Study reveals harmful effects of compact fluorescent light bulbs to skin

(Medical Xpress) -- Inspired by a European study, a team of Stony Brook University researchers looked into the potential impact of healthy human skin tissue (in vitro) being exposed to ultraviolet rays emitted ...

Health created Jul 19, 2012 | popularity 1 / 5 (1) | comments 2

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. ...

Cancer created Nov 03, 2011 | popularity 5 / 5 (1) | comments 1

Novel drug to slow cataracts on their path to causing blindness

The innovators behind commercialising a world-first drug to slow cataract growth and to delay cataracts forming, have been named as one of five finalists in The University of Queensland (UQ) Business School's $100,000 Enterprize ...

Ophthalmology created Sep 05, 2011 | popularity not rated yet | comments 0

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.

Cancer created Aug 15, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Workings of brain protein suggest therapies for inherited intellectual disability, autism

Researchers now have a much clearer understanding of how mutations in a single gene can produce the complex cognitive deficits characteristic of Fragile X Syndrome, the most common inherited form of intellectual disability. ...

Medical research created Jul 21, 2011 | popularity 4 / 5 (2) | comments 0 | with audio podcast

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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.