News tagged with mechanical stress
Researchers generate electricity from viruses
Imagine charging your phone as you walk, thanks to a paper-thin generator embedded in the sole of your shoe. This futuristic scenario is now a little closer to reality. Scientists from the U.S. Department of Energy's Lawrence ...
Nanotechnology / Bio & Medicine
May 13, 2012 |
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Misfolded proteins: The fundamental problem is aging
Proteins are essential for all biological activities and the health of the cell. Misfolded and damaged proteins spell trouble and are common to all human neurodegenerative diseases and many other age-associated diseases. ...
Aug 24, 2009 |
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New fiber nanogenerators could lead to electric clothing
(PhysOrg.com) -- In research that gives literal meaning to the term "power suit," University of California, Berkeley, engineers have created energy-scavenging nanofibers that could one day be woven into clothing ...
Nanotechnology / Nanomaterials
Feb 12, 2010 |
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Scientists pioneer nanoscale nuclear materials testing capability
Nuclear power is a major component of our nation's long-term clean-energy future, but the technology has come under increased scrutiny in the wake of Japan's recent Fukushima disaster. Indeed, many nations ...
Nanotechnology / Nanomaterials
Jun 26, 2011 |
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Research spawns new discoveries showing how crops survive drought
(PhysOrg.com) -- Breakthrough research done earlier this year by a plant cell biologist at the University of California, Riverside has greatly accelerated scientists' knowledge on how plants and crops can ...
Nov 18, 2009 |
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Turning over a new leaf
(PhysOrg.com) -- German researchers have transformed the skeleton of a leaf into iron carbide. The new technique enables the conversion of metal carbides into intricate microstructures in just one step.
Sep 20, 2010 |
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Higher anxiety, depression among women may have basis in cell signals
There may be a biological reason why depression and other stress-related psychiatric disorders are more common among women compared to men. Studying stress signaling systems in animal brains, neuroscience researchers found ...
Medicine & Health / Psychology & Psychiatry
Jun 15, 2010 |
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Possible link studied between childhood abuse and early cellular aging
Children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults, according to new research from Butler Hospital and Brown University.
Medicine & Health / Psychology & Psychiatry
Nov 20, 2009 |
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Nerve gas litmus test could sense airborne chemical weapons
(PhysOrg.com) -- Nerve gases are colorless, odorless, tasteless and deadly. While today's soldiers carry masks and other protective gear, they don't have reliable ways of knowing when they need them in time. ...
Mar 13, 2012 |
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Understanding the human neurosystem: From the brain of a locust
In the human brain, mechanical stress -- the amount of pressure applied to a particular area -- requires a delicate balance. Just the right force keeps neurons together and functioning as a system within the ...
Medicine & Health / Neuroscience
Nov 29, 2010 |
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Magnetic testing process helps ensure reliability of microelectronic devices
(Phys.org) -- Taking advantage of the force generated by magnetic repulsion, researchers have developed a new technique for measuring the adhesion strength between thin films of materials used in microelectronic ...
Apr 12, 2012 |
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Muscle filaments make mechanical strain visible
Plastics-based materials have been in use for decades. But manufacturers are facing a serious hurdle in their quest for new developments: Substantial influences of the microscopic material structure on mechanical ...
Dec 20, 2010 |
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A molecular ripcord for chemical reactions
Researchers at Eindhoven University of Technology (the Netherlands) have developed an entirely new method for starting chemical reactions. For the first time they used mechanical forces to control catalytic ...
Chemistry / Analytical Chemistry
Apr 06, 2009 |
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In-situ insights into alloys
New research has produced the first micro-scale, in-situ, real-time observations of structural changes within alloys when under extremely high temperatures and stress.
Aug 26, 2009 |
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Genetic change prevents cell death in mouse model of Parkinson's disease
(PhysOrg.com) -- By shifting a normal protective mechanism into overdrive, a University of Wisconsin-Madison scientist has completely shielded mice from a toxic chemical that would otherwise cause Parkinson's ...
Medicine & Health / Medical research
Feb 02, 2009 |
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