News tagged with electrical impulses
Related topics: heart , brain , nerve cells , neurons
High-voltage engineers create nearly 200-foot-long electrical arcs using less energy than before (Update)
Photos taken by the researchers show plasma arcs up to 60 meters long casting an eerie blue glow over buildings and trees at the High Voltage Laboratory at the University of Canterbury in New Zealand.
Nov 08, 2011 |
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Uncorrelated activity in the brain
Interconnected networks of neurons process information and give rise to perception by communicating with one another via small electrical impulses known as action potentials. In the past, scientists believed that adjacent ...
Medicine & Health / Neuroscience
Jan 28, 2010 |
4.8 / 5 (9) |
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Plant-derived scavengers prowl the body for nerve toxins
The brain is forever chattering to itself, via electrical impulses sent along its hard-wired neuronal "Ethernet." These e-messages are translated into chemical transmissions, allowing communication across ...
Nov 23, 2010 |
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Findings show nanomedicine promising for treating spinal cord injuries
(PhysOrg.com) -- Researchers at Purdue University have discovered a new approach for repairing damaged nerve fibers in spinal cord injuries using nano-spheres that could be injected into the blood shortly ...
Nanotechnology / Bio & Medicine
Nov 08, 2009 |
4.5 / 5 (4) |
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Carbon nanotube device can detect colors of the rainbow
Researchers at Sandia National Laboratories have created the first carbon nanotube device that can detect the entire visible spectrum of light, a feat that could soon allow scientists to probe single molecule ...
Nanotechnology / Nanomaterials
Apr 30, 2009 |
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Explanation for glowing seas suggested
It has long been known that distinctive blue flashes -- a type of bioluminescence -- that are visible at night in some marine environments are caused by tiny, unicellular plankton known as dinoflagellates. ...
Oct 19, 2011 |
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Shine a light instead of changing the battery
(PhysOrg.com) -- Pacemakers and other implanted medical devices require electric current to operate. Changing the battery requires an additional operation, which is an added stress on the patient. A Japanese team led by Eijiro ...
Dec 01, 2011 |
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'Can you hear me now?' Researchers detail how neurons decide how to transmit information
There are billions of neurons in the brain and at any given time tens of thousands of these neurons might be trying to send signals to one another. Much like a person trying to be heard by his friend across ...
Medicine & Health / Neuroscience
Mar 25, 2011 |
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Engineering excitable cells for studies of bioelectricity and cell therapy
By altering the genetic makeup of normally "unexcitable" cells, Duke University bioengineers have turned them into cells capable of generating and passing electrical current.
Jul 19, 2011 |
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Researchers locate impulse control center in brain
Impulsive behaviour can be improved with training and the improvement is marked by specific brain changes, according to a new Queen's University study.
Medicine & Health / Neuroscience
Sep 21, 2010 |
4.6 / 5 (15) |
2
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Electronic tattoo monitors brain, heart and muscles (w/ video)
Imagine if there were electronics able to prevent epileptic seizures before they happen. Or electronics that could be placed on the surface of a beating heart to monitor its functions. The problem is that ...
Jan 30, 2012 |
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New strategy for mending broken hearts?
(PhysOrg.com) -- By mimicking the way embryonic stem cells develop into heart muscle in a lab, Duke University bioengineers believe they have taken an important first step toward growing a living "heart patch" ...
Medicine & Health / Medical research
Oct 11, 2009 |
3.5 / 5 (4) |
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Neuroscientists reveal new links that regulate brain electrical activity
Investigators in the Hotchkiss Brain Institute, Faculty of Medicine, have made a major breakthrough in our understanding of nerve impulse generation within the brain. Brain cells communicate with each other by firing electrical ...
Medicine & Health / Neuroscience
Feb 16, 2010 |
4.8 / 5 (5) |
1
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Electric fish plug in to communicate
(PhysOrg.com) -- Just as people plug in to computers, smart phones and electric outlets to communicate, electric fish communicate by quickly plugging special channels into their cells to generate electrical ...
Sep 29, 2009 |
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Opening the gate to the cell's recycling center
(PhysOrg.com) -- In cells, as in cities, disposing of garbage and recycling anything that can be reused is an essential service. In both city and cell, health problems can arise when the process breaks down.
Jul 14, 2010 |
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