News tagged with negative refraction


Perfect image without metamaterials... and a reprieve for silicon chips (w/ Video)

Perfect image without metamaterials... and a reprieve for silicon chips (w/ Video)

Physics / Optics & Photonics

created Sep 29, 2009 | popularity 2.9 / 5 (17) | comments 6

(PhysOrg.com) -- Since 2000, John Pendry's work on metamaterials has been at the van guard of efforts to create a perfect image - images with perfect resolution that can stem from light being moved in odd ...


Nanowire Metamaterial

Invisibility cloak now within sight: scientists (Update 2)

Physics / General Physics

created Aug 11, 2008 | popularity 4.5 / 5 (88) | comments 15

(PhysOrg.com) -- Scientists at the University of California, Berkeley, have for the first time engineered 3-D materials that can reverse the natural direction of visible and near-infrared light, a development ...





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Coaxing injured nerve fibers to regenerate by disabling 'brakes' in the system

Coaxing injured nerve fibers to regenerate by disabling 'brakes' in the system

Medicine & Health / Neuroscience

created 9 hours ago | popularity not rated yet | comments 0

Brain and spinal-cord injuries typically leave people with permanent impairment because the injured nerve fibers (axons) cannot regrow. A study from Children's Hospital Boston, published in the December 10 ...


Money changes what we think is fair, research finds

Medicine & Health / Psychology & Psychiatry

created 9 hours ago | popularity not rated yet | comments 1

Thinking of rewarding your sales department for a job well done? You might not want to make cash part of the pay-off.


Study confirms association between tobacco smoke and behavioral problems in children

Medicine & Health / Health

created 9 hours ago | popularity not rated yet | comments 0

The scientists observed that the impact of tobacco smoke was especially detrimental during gestation. The results of the study have been published in the current online issue of the renowned journal Environmental Health Pe ...


77 percent of European pigs are castrated without anesthetic

77 percent of European pigs are castrated without anesthetic

Biology / Plants & Animals

created 9 hours ago | popularity 1 / 5 (1) | comments 0

The castration of pigs prevents the "boar taint" smell in the meat and allows them to contain more fat. However in practice this can be very different. Now, for the first time, a scientific team has collected ...


Debunking fears: Latino growth does not boost crime

Other Sciences / Social Sciences

created 10 hours ago | popularity not rated yet | comments 1

Rural industries, such as meat-packing and textile manufacturing, create job opportunities that have brought significant numbers of Latino workers and their families to small- and medium-sized towns. This influx of Latino ...


alcohol

What's the best hangover cure? Truth be told, there isn't one

Medicine & Health / Health

created 13 hours ago | popularity 2.5 / 5 (2) | comments 9

(PhysOrg.com) -- With the holiday party season at hand, UNC's Dr. James C. Garbutt offers these tips about how to enjoy a few drinks responsibly -- while sparing yourself and those around you from the potentially ...


Women with breast cancer who consume soy food have lower risk of cancer recurrence

Medicine & Health / Cancer

created Dec 08, 2009 | popularity not rated yet | comments 0

Although there is a concern regarding the safety of soy food consumption among breast cancer survivors, researchers have found that women in China who had breast cancer and a higher intake of soy food had an associated lower ...


Children's TV has questionable political themes, study shows

Other Sciences / Social Sciences

created Dec 08, 2009 | popularity 5 / 5 (1) | comments 1

Most parents know to screen television shows for sex, violence or other negative messaging—but what about children's shows themselves?


Testosterone does not induce aggression

Medicine & Health / Neuroscience

created Dec 08, 2009 | popularity 4.7 / 5 (7) | comments 8

New scientific evidence refutes the preconception that testosterone causes aggressive, egocentric, and risky behavior. A study at the Universities of Zurich and Royal Holloway London with more than 120 experimental subjects ...


Study shows link between working memory and reactive parenting

Medicine & Health / Psychology & Psychiatry

created Dec 08, 2009 | popularity 5 / 5 (1) | comments 0

Any parent knows that sometimes maintaining your cool with misbehaving children is a challenge. We all have times when we get frustrated or angry and lash out at someone without thinking. A new study by psychologists at ...



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