News tagged with laser
When tumours metastasise, they can block lymphatic vessels, as researchers from ETH Zurich have discovered using a new method. The lymphatic fluid subsequently has to find a new path through the tissue. Such ...
Medical research 2 hours ago | not rated yet | 0 |
When Dexter the cocker spaniel tore a ligament in his hind leg a few weeks ago, he didn't suffer in silence. Instead, his owner blogged about.
Cancer May 17, 2013 | not rated yet | 0
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 |
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 |
A different view of cancer cells: New study measures physical changes in tumor cells as they become metastatic
Most cancer deaths are caused by metastatic tumors, which break free from the original cancer site and spread throughout the body. For that to happen, cancer cells must undergo many genetic and physical changes.
Cancer Apr 23, 2013 | not rated yet | 0 |
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
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 |
In an engineering breakthrough, a Washington University in St. Louis biomedical researcher has discovered a way to use light and color to measure oxygen in individual red blood cells in real time.
Medical research Mar 25, 2013 | 4 / 5 (1) | 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 |
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 |
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 |
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 |
A Case Western Reserve University student-led startup aimed at saving lives through faster, better and cheaper malaria diagnosis won the 2013 LaunchTown Entrepreneurship Business Idea Competition at the University of Akron ...
Diseases, Conditions, Syndromes Apr 23, 2013 | not rated yet | 0
Blocking a single tiny blood vessel in the brain can harm neural tissue and even alter behavior, a new study from the University of California, San Diego has shown. But these consequences can be mitigated ...
Neuroscience Dec 16, 2012 | 3.5 / 5 (2) | 1 |
University of Oregon scientists collaborating with an Oregon company that synthesizes antisense Morpholinos for genetic research have developed a UV light-activated on-off switch for the vital gene-blocking ...
Genetics Apr 04, 2012 | 5 / 5 (1) | 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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