News tagged with breakdown
Gallium nitride transistor could replace silicon
Dec 08, 2009 |
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(PhysOrg.com) -- A Cornell researcher has created an extremely efficient transistor made from gallium nitride, which may soon replace silicon as king of semiconductors for power applications.
Rethinking Alzheimer's disease and its treatment targets
Medicine & Health / Neuroscience
Sep 22, 2009 |
4.8 / 5 (5) |
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(PhysOrg.com) -- Psychiatry professor George Bartzokis introduces a new theory about the fundamental cause of Alzheimer's and other neurodegenerative diseases.
Researchers discover new antituberculosis compounds
Sep 16, 2009 |
4.9 / 5 (7) |
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Attempts to eradicate tuberculosis (TB) are stymied by the fact that the disease-causing bacteria have a sophisticated mechanism for surviving dormant in infected cells. Now, a team of scientists led by researchers from Weill ...
Graphene Shows High Current Capacity and Thermal Conductivity
Nanotechnology / Nanomaterials
Jul 29, 2009 |
4.9 / 5 (13) |
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(PhysOrg.com) -- Recent research into the properties of graphene nanoribbons provides two new reasons for using the material as interconnects in future computer chips. In widths as narrow as 16 nanometers, ...
Storing a Lightning Bolt in Glass for Portable Power
May 05, 2009 |
4 / 5 (21) |
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(PhysOrg.com) -- Materials researchers at Penn State University have reported the highest known breakdown strength for a bulk glass ever measured. Breakdown strength, along with dielectric constant, determines ...
Disabling enzyme allows mice to gorge without becoming obese, new study finds
Jan 11, 2009 |
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Researchers at the University of California, Berkeley, have identified a new enzyme that plays a far more important role than expected in controlling the breakdown of fat. In a new study to be published Jan. 11 in the journal ...
Muscle: 'Hard to build, easy to lose' as you age
Sep 11, 2009 |
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(PhysOrg.com) -- Have you ever noticed that people have thinner arms and legs as they get older? As we age it becomes harder to keep our muscles healthy. They get smaller, which decreases strength and increases the likelihood ...
Google's openness intensifies focus on e-mail woes
Mar 12, 2009 |
4 / 5 (1) |
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(AP) -- Google Inc.'s recent pledge to be more open about periodic service outages appears to be drawing more attention to the breakdowns when they occur, even if it's a minor hiccup affecting a sliver of its users.
Blue bananas: Ripening bananas glow an intense blue under black light
Oct 17, 2008 |
3.8 / 5 (37) |
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(PhysOrg.com) -- Ripe bananas are of course yellow. However, under black light, the yellow bananas are bright blue, as discovered by scientists at the University of Innsbruck (Austria) and Columbia University ...
Researchers uncover attack mechanism of illness-inducing bacterium
Aug 18, 2008 |
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An infectious ocean-dwelling bacterium found in oysters and other shellfish kills its host's cells by causing them to burst, providing the invader with a nutrient-rich meal, researchers at UT Southwestern Medical Center have ...
New approach for growing bone
Oct 07, 2009 |
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The natural cycle of building bone to maintain skeletal strength and then breaking it down for the body's calcium needs is delicately balanced, but diseases like osteoporosis break down too much bone without adequate bone ...
Polarizers may enhance remote chemical detection
Chemistry / Analytical Chemistry
Mar 11, 2009 |
5 / 5 (1) |
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Chemists can analyze the composition of a suspected bomb -- without actually touching and possibly detonating it -- using a technique called laser-induced breakdown spectroscopy, or LIBS. The tool is also commonly used for ...
Old Cells Work Differently
Mar 01, 2009 |
4.3 / 5 (3) |
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The agglutination and accumulation of proteins in nerve cells are major hallmarks of age-related neurodegenerative illnesses such as Alzheimer's disease. Cellular survival thus depends on a controlled removal of excessive ...
Bad cholesterol inhibits the breakdown of peripheral fat
Nov 20, 2008 |
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The so called bad cholesterol (LDL) inhibits the breakdown of fat in cells of peripheral deposits, according to a study from the Swedish medical university Karolinska Institutet. The discovery reveals a novel function of ...
Fujitsu Develops World's First GaN HEMT Able to Cut Power in Standby Mode and Achieve High Output
Oct 10, 2008 |
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Fujitsu today announced the development of a new type of gallium nitride (GaN)-based high electron mobility transistor (HEMT) that features a new structure ideal for use in amplifiers for microwave and millimeter-wave ...
