News tagged with sensors
Your brain on dye: Imaging neuronal voltage with fluorescent sensors and molecular wires
(Medical Xpress) -- Optically monitoring the brain’s neuronal activity can be accomplished in several ways, including electrochromic dyes, hydrophobic anions, calcium imaging, or voltage-sensitive ion ...
Neuroscience
Feb 24, 2012 |
4.9 / 5 (10) |
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Assessing the effects of cell phone radiation on brain tissue
Researchers have found a novel, non-invasive technique for measuring brain hot spots caused by electromagnetic radiation from mobile phones, according to a study published today.
Medical research
Dec 17, 2012 |
3.3 / 5 (10) |
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Learning a new sense: Scientists observe as humans learn to sense like a rat, with 'whiskers'
A Weizmann Institute experiment in which volunteers learned to sense objects' locations using just "rat whiskers" may help improve aids for the blind.
Neuroscience
Nov 05, 2012 |
4.5 / 5 (4) |
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New detector for rare cancer cells
(Medical Xpress) -- Researchers in the US have developed a new detector for measuring rare circulating tumor cells (CTCs) in samples of whole blood.
Cancer
Jul 07, 2012 |
4.3 / 5 (3) |
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Scientists create new tools for battling secondhand smoke
Dartmouth researchers have taken an important step in the ongoing battle against secondhand tobacco smoke. They have pioneered the development of a breakthrough device that can immediately detect the presence ...
Health
Mar 21, 2013 |
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How some prostate tumors resist treatment—and how it might be fixed
Hormonal therapies can help control advanced prostate cancer for a time. However, for most men, at some point their prostate cancer eventually stops responding to further hormonal treatment. This stage of ...
Cancer
Mar 18, 2013 |
5 / 5 (2) |
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Flu outbreaks modeled by new study of classroom schedules
Classroom rosters combined with human-networking theory may give a clearer picture of just how infectious diseases such as influenza can spread through a closed group of people, and even through populations ...
Diseases, Conditions, Syndromes
Feb 13, 2013 |
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Fear factor: Study shows brain's response to scary stimuli
(Medical Xpress)—Driving through his hometown, a war veteran with post-traumatic stress disorder may see roadside debris and feel afraid, believing it to be a bomb. He's ignoring his safe, familiar surroundings and only ...
Neuroscience
Feb 08, 2013 |
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Pill-sized device provides rapid, detailed imaging of esophageal lining
Physicians may soon have a new way to screen patients for Barrett's esophagus, a precancerous condition usually caused by chronic exposure to stomach acid. Researchers at the Wellman Center for Photomedicine ...
Medical research
Jan 13, 2013 |
4 / 5 (5) |
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Electric stimulation of brain releases powerful, opiate-like painkiller
Researchers used electricity on certain regions in the brain of a patient with chronic, severe facial pain to release an opiate-like substance that's considered one of the body's most powerful painkillers.
Neuroscience
Jan 02, 2013 |
4.1 / 5 (7) |
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The end of a dogma: Bipolar cells generate action potentials
To make information transmission to the brain reliable, the retina first has to "digitize" the image. Until now, it was widely believed that this step takes place in the retinal ganglion cells, the output ...
Medical research
Dec 19, 2012 |
5 / 5 (3) |
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Crag keeps the light 'fantastic' for photoreceptors
The ability of the eye of a fruit fly (Drosophila melanogaster) to respond to light depends on a delicate ballet that keeps the supply of light sensors called rhodopsin constant as photoreceptors turn on and off in respon ...
Neuroscience
Dec 04, 2012 |
5 / 5 (1) |
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Sitting pad to help decrease risk of 'chair disease'
(Medical Xpress)—To prevent the risk of 'chair disease', The University of Queensland researchers have developed a 'sitting pad' device that uses an alarm to alert workers to stand up more regularly.
Health
Dec 04, 2012 |
not rated yet |
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Simplifying heart surgery with stretchable electronics devices
(Medical Xpress)—Researchers at the McCormick School of Engineering are part of a team that has used stretchable electronics to create a multipurpose medical catheter that can both monitor heart functions ...
Cardiology
Nov 15, 2012 |
5 / 5 (1) |
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Monitoring brain activity during study can help predict test performance
(Medical Xpress)—Research at Sandia National Laboratories has shown that it's possible to predict how well people will remember information by monitoring their brain activity while they study.
Psychology & Psychiatry
Sep 10, 2012 |
5 / 5 (4) |
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Sensor
A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. For example, a mercury thermometer converts the measured temperature into expansion and contraction of a liquid which can be read on a calibrated glass tube. A thermocouple converts temperature to an output voltage which can be read by a voltmeter. For accuracy, all sensors need to be calibrated against known standards.
For more information about Sensor, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
