News tagged with light signal

Light switches for nerve cells

(PhysOrg.com) -- It sounds like a neurobiologist’s dream: a light-switch that allows nerve cells to be switched on and off at will. Three scientists have found just such a light switch and are now being ...

dateApr 06, 2010 in Neuroscience
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A novel in vitro model for light-induced wound healing

Today, during the 39th Annual Meeting of the American Association for Dental Research, convening at the Walter E. Washington Convention Center in Washington, DC, lead researcher C. Millan (U.S. Army Dental Corps, Martinez, ...

dateMar 04, 2010 in Other
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Color sensors for better vision

CMOS image sensors in special cameras -- as used for driver assistance systems -- mostly only provide monochrome images and have a limited sensitivity to light. Thanks to a new production process these sensors ...

dateOct 05, 2009 in Engineering
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Lasers generate underwater sound

Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...

dateSep 04, 2009 in General Physics
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Ghost remains after black hole eruption

NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence ...

dateMay 28, 2009 in Astronomy
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Vigilant windows

Is someone sneaking around in front of the window trying to break in? Windows and doors are now being sensitized to suspicious movements: they can detect whether and how quickly something is moving. If it ...

dateMar 17, 2009 in Engineering
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Bright lights, not-so-big pupils

A team of Johns Hopkins neuroscientists has worked out how some newly discovered light sensors in the eye detect light and communicate with the brain. The report appears online this week in Nature.

dateDec 31, 2008 in Medical research
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