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Scientists measure speedy electrons in silicon

December 12, 2014 7:00 am | Comments

An international team of physicists and chemists based at UC Berkeley has, for the first time, taken snapshots of this ephemeral event using attosecond pulses of soft X-ray light lasting only a few billionths of a billionth of a second.                             

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Theory details how ‘hot’ monomers affect thin-film formation

December 11, 2014 2:43 pm | by Mike Williams, Rice University | Comments

Researchers at Rice and the University of Maryland led by Rice theoretical physicist Alberto Pimpinelli devised the first detailed model to quantify what they believe was the last unknown characteristic of film formation through deposition by vacuum sublimation and chemical vapor deposition.

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Stacking 2-D materials may lower cost of semiconductor devices

December 11, 2014 2:34 pm | by North Caroline State University | Comments

A team of researchers led by North Carolina State University has found that  stacking materials that are only one atom thick can create semiconductor junctions that transfer charge efficiently, regardless of whether the crystalline structure of the materials is mismatched.

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New technology tracks carcinogens as they move through the body

December 11, 2014 12:17 pm | by Oregon State University | Comments

Researchers for the first time have developed a method to track through the human body the movement of polycyclic aromatic hydrocarbons, or PAHs, as extraordinarily tiny amounts of these potential carcinogens are biologically processed and eliminated.

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Baby steps toward molecular robots

December 11, 2014 8:32 am | Comments

A walking molecule, so small that it cannot be observed directly with a microscope, has been recorded taking its first nanometer-sized steps. It's the first time that anyone has shown in real time that such a tiny object – termed a "small molecule walker" – has taken a series of steps.

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Meniscus regenerated with 3-D-printed implant

December 11, 2014 8:25 am | Comments

Researchers have devised a way to replace the knee’s protective lining, called the meniscus, using a personalized 3D-printed implant, or scaffold, infused with human growth factors that prompt the body to regenerate the lining on its own. The therapy, successfully tested in sheep, could provide the first effective and long-lasting repair of damaged menisci.

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Physicists explain puzzling particle collisions

December 11, 2014 8:21 am | Comments

An anomaly spotted at the Large Hadron Collider has prompted scientists to reconsider a mathematical description of the underlying physics. By considering two forces that are distinct in everyday life but unified under extreme conditions like those within the collider and just after the birth of the universe, they have simplified one description of the interactions of elementary particles. 

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‘High-entropy’ alloy is as light as aluminum, as strong as titanium alloys

December 11, 2014 8:09 am | Comments

Researchers have developed a new “high-entropy” metal alloy that has a higher strength-to-weight ratio than any other existing metal material. High-entropy alloys are materials that consist of five or more metals in approximately equal amounts. 

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New way to plug 'leaky' light cavities

December 11, 2014 8:07 am | Comments

Engineers at the University of California, San Diego have demonstrated a new and more efficient way to trap light, using a phenomenon called bound states in the continuum (BIC) that was first proposed in the early days of quantum wave mechanics.

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New form of ice could explore avenues for energy production and storage

December 11, 2014 8:01 am | Comments

The discovery of a new form of ice could lead to an improved understanding of our planet’s geology, potentially helping to unlock new solutions in the production, transportation and storage of energy. Ice XVI, the least dense of all known forms of ice, has a highly symmetric cage-like structure that can trap gaseous molecules to form compounds known as clathrates or gas hydrates.

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New way to turn genes on

December 10, 2014 2:37 pm | by Anne Trafton, MIT | Comments

Using a gene-editing system originally developed to delete specific genes, MIT researchers have now shown that they can reliably turn on any gene of their choosing in living cells.                    

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Organic electronics could lead to cheap, wearable medical sensors

December 10, 2014 2:19 pm | by Sarah Yang, UC Berkeley | Comments

Future fitness trackers could soon add blood-oxygen levels to the list of vital signs measured with new technology developed by engineers.                               

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‘Electronic skin’ detects pressure from different directions

December 10, 2014 2:12 pm | by American Chemical Society | Comments

For the first time, scientists report the development of a stretchable “electronic skin” closely modeled after our own that can detect not just pressure, but also what direction it’s coming from.                

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NASA, Houston hospital work on spacesuit issue

December 10, 2014 2:00 pm | by Juan A. Lozano, Associated Press | Comments

The empty spacesuit that sat on the operating table in a lab at Houston Methodist Hospital's research institute made for an unusual patient.                               

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Nanotechnology battles malaria parasites

December 10, 2014 8:04 am | Comments

Malaria parasites invade human red blood cells, which they bring to burst and infect others. Researchers at the University of Basel and the Swiss Tropical and Public Health Institute called nano imitations of host cell membranes have developed that deceive and trick the pathogen. This could lead to novel therapeutic and vaccine strategies against malaria and other infectious diseases.

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