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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Heart-powered pacemaker could one day eliminate battery-replacement surgery
A new power scheme for cardiac pacemakers turns to an unlikely source: vibrations from heartbeats themselves.
Mar 02, 2012 |
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Stress-induced genomic instability facilitates rapid cellular adaption in yeast
Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. ...
Jan 29, 2012 |
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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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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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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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Social status promotes faster wound healing in wild baboons
Turns out it's not bad being top dog, or in this case, top baboon.
May 21, 2012 |
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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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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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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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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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Sticky protein helps reinforce fragile muscle membranes
A new study by scientists at the University of Iowa shows why muscle membranes don't rupture when healthy people exercise.
Medicine & Health / Medical research
Jul 23, 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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