News tagged with 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
Apr 25, 2013 |
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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
Apr 22, 2013 |
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Photoacoustics spares healthy lymph nodes in patients with metastasized cancer
If a tumour has spread through the lymph nodes, the decision is often taken to exercise caution and remove extra tissue, to prevent it from spreading further. This often involves the removal of healthy lymph ...
Cancer
Apr 18, 2013 |
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Ricebag to treat soft tissue injuries
University Teknology MARA researchers investigated the effects of rice, barley and mung beans in heated bags for treating soft tissue injuries. Rice displayed superior quality in maintaining heat and can ...
Other
Apr 18, 2013 |
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Laser optics plus ultrasound imaging holds promise as a noninvasive test for prostate cancer
Multispectral photoacoustic imaging, which combines laser optics and ultrasound imaging technologies, can reliably distinguish between benign and malignant prostate tissue, a new study indicates.
Cancer
Apr 18, 2013 |
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Tiny wireless injectable LED device shines light on mouse brain, generating reward
Using a miniature electronic device implanted in the brain, scientists have tapped into the internal reward system of mice, prodding neurons to release dopamine, a chemical associated with pleasure.
Neuroscience
Apr 11, 2013 |
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Moving cells with light holds medical promise
Scientists at Washington University School of Medicine in St. Louis have shown they can coax cells to move toward a beam of light. The feat is a first step toward manipulating cells to control insulin secretion ...
Medical research
Apr 08, 2013 |
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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
Apr 05, 2013 |
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Scientists can see which cells communicate with each other in the brain, by flipping a neural light switch
There are cells in your brain that recognize very specific places, and have that as one of their main jobs. These cells, called place cells, are found in an area behind your temple called the hippocampus. ...
Neuroscience
Apr 04, 2013 |
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Resetting addicted brain: Laser light zaps away cocaine addiction
By stimulating one part of the brain with laser light, researchers at the National Institutes of Health (NIH) and the Ernest Gallo Clinic and Research Center at UC San Francisco (UCSF) have shown that they ...
Neuroscience
Apr 03, 2013 |
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Switching night vision on or off
Neurobiologists at the Friedrich Miescher Institute have been able to dissect a mechanism in the retina that facilitates our ability to see both in the dark and in the light. They identified a cellular switch ...
Neuroscience
Mar 27, 2013 |
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Symbols, such as traffic lights, on menus effective in educating diners
A little-noticed provision of the Affordable Care Act requires all chain restaurants and retail food establishments with 20 or more locations to list calorie counts on their menus. But according to research ...
Health
Mar 13, 2013 |
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Research poised to lead to major advances in cataract treatment
(Medical Xpress)—Research carried out by Professor Barbara Pierscionek and a team of fellow vision experts suggests that the way proteins are distributed in the lens of the eye may cause its gradient to ...
Ophthalmology
Mar 01, 2013 |
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Reseachers develop holographic technique for bionic vision
Researchers led by biomedical engineering Professor Shy Shoham of the Technion-Israel Institute of Technology are testing the power of holography to artificially stimulate cells in the eye, with hopes of ...
Medical research
Feb 26, 2013 |
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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
Feb 25, 2013 |
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Light
Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
For more information about Light, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
