News tagged with laser
Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.
Dentistry Sep 16, 2012 | 4.6 / 5 (45) | 15
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 | 5 / 5 (11) | 7 |
Just like the old Crystal Gayle song, a new laser technology could soon allow you to turn those boring brown eyes of your to a rich and beautiful blue. But you better make sure that blue eyes are what you really want because ...
Other Nov 04, 2011 | 4 / 5 (11) | 21 |
Using precisely-targeted lasers, researchers manipulate neurons in worms' brains, take control of their behavior
In the quest to understand how the brain turns sensory input into behavior, Harvard scientists have crossed a major threshold. Using precisely-targeted lasers, researchers have been able to take over an animal's ...
Neuroscience Sep 24, 2012 | 5 / 5 (8) | 1 |
What characterizes many people with depression, schizophrenia and some other mental illnesses is anhedonia: an inability to gain pleasure from normally pleasurable experiences.
Neuroscience Mar 21, 2012 | 4.3 / 5 (6) | 0 |
Shortly after the Hubble Space Telescope went into orbit in 1990 it was discovered that the craft had blurred vision. Fortunately, Space Shuttle astronauts were able to remedy the problem a few years later ...
Neuroscience Aug 23, 2012 | 5 / 5 (5) | 0 |
(Medical Xpress) -- In a major step forward in optogenetics, MIT researcher Christian Wentz has developed a sort of wireless hat that can be used to transmit light to photo sensitized cells in the brain, thus ...
Neuroscience Jun 28, 2011 | 4.8 / 5 (5) | 0 |
Researchers at the Center for Laser Applications at the University of Tennessee Space Institute in Tullahoma have developed a technology that goes on a "seek and destroy" mission for cancerous tumors. They have harnessed ...
Cancer Jul 23, 2012 | 4.8 / 5 (5) | 0 |
(HealthDay) -- Low-level laser therapy (LLLT) is effective for body slimming, according to a study published in the March issue of Lasers in Surgery and Medicine.
Surgery Mar 30, 2012 | 4.8 / 5 (4) | 0
Researchers at Polytechnique Montreal have succeeded in changing the genetic material of cancer cells using a brand-new transfection method. This major breakthrough in nanosurgery opens the door to new medical applications, ...
Surgery Feb 16, 2012 | 5 / 5 (3) | 0
Commercial medical tapes on the market today are great at keeping medical devices attached to the skin, but often can do damage—such as skin tissue tearing—once it's time to remove them.
Medical research Oct 29, 2012 | 5 / 5 (3) | 0 |
Enlarged prostate: decade-long study demonstrates immediate and long-term benefits of holmium laser treatment
(Medical Xpress) -- New research presented at the Annual Meeting of the American Urology Association (AUA) in Washington, DC demonstrates that holmium laser therapy is a safe and durable treatment option for Benign Prostatic ...
Diseases, Conditions, Syndromes May 20, 2011 | 5 / 5 (2) | 0
A team of scientists, led by the University of Liverpool, has made a major advance in the development of a diagnostic test for oesophageal cancer. The findings, achieved at STFC's ALICE accelerator facility, ...
Cancer Feb 08, 2012 | 5 / 5 (2) | 0
Laser light in combination with certain drugs known as photodynamic therapy can destroy cancer tumours, but is today used mostly to cure skin cancer. The reason that internal tumours are not treated with the ...
Cancer Feb 15, 2012 | 5 / 5 (2) | 0
After a heart attack or stroke, heart scarring can lead to dangerously paper-thin heart walls and a decreased ability to pump blood through the body. Although the heart is unable to completely heal itself, a new treatment ...
Medical research Aug 11, 2011 | 4.5 / 5 (2) | 0
A laser is a device that emits light (electromagnetic radiation) through a process called stimulated emission. The term laser is an acronym for light amplification by stimulated emission of radiation. Laser light is usually spatially coherent, which means that the light either is emitted in a narrow, low-divergence beam, or can be converted into one with the help of optical components such as lenses. Typically, lasers are thought of as emitting light with a narrow wavelength spectrum ("monochromatic" light). This is not true of all lasers, however: some emit light with a broad spectrum, while others emit light at multiple distinct wavelengths simultaneously. The coherence of typical laser emission is distinctive. Most other light sources emit incoherent light, which has a phase that varies randomly with time and position.
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