News tagged with negative refraction
Perfect image without metamaterials... and a reprieve for silicon chips (w/ Video)
Sep 29, 2009 |
2.9 / 5 (17) |
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(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 ...
Invisibility cloak now within sight: scientists (Update 2)
Aug 11, 2008 |
4.5 / 5 (88) |
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(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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For low-income families with special needs kids, where you live matters (w/ Video)
Dec 04, 2009 |
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In the United States, caring for a child with special health care needs usually means higher medical expenses for a family — particularly for low-income families, who spend a disproportionally large share of their income ...
Most runaway teens return home with help of family ties, study finds
Medicine & Health / Psychology & Psychiatry
Dec 04, 2009 |
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(PhysOrg.com) -- Runaways who maintain contact with pro-social peers and have parental support, especially from their mothers, tend to return home.
Repeat negative CT scan for lung cancer does not encourage ex-smokers to resume the habit
Dec 04, 2009 |
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Assurance of a cancer-free status did not prompt people participating in a long-term computerized tomography (CT) lung-cancer screening program to pick up their cigarettes again, researchers wrote in a study published in ...
Professor foresees rising Antarctic snowmelt
Space & Earth / Earth Sciences
Dec 03, 2009 |
2 / 5 (1) |
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The 30-year record low in Antarctic snowmelt that occurred during the 2008-09 austral summer was likely due to concurrent strong positive phases for two main climate drivers, ENSO (El Niño - Southern Oscillation) and SAM ...
Major impacts of climate change expected on mental health
Medicine & Health / Psychology & Psychiatry
Dec 03, 2009 |
3.4 / 5 (5) |
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Leading mental health researchers are warning that some of the most important health consequences of climate change will be on mental health, yet this issue is unlikely to be given much attention at the UN climate change ...
Parents gone wild? Study suggests link between working memory and reactive parenting
Medicine & Health / Psychology & Psychiatry
Dec 03, 2009 |
4 / 5 (2) |
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We've all been in situations before where we get so frustrated or angry about something, we will lash out at someone without thinking. This lashing out — reactive negativity — happens when we can't control our emotions. Luckily, ...
New guidelines for treating complicated skin and soft tissue infections
Dec 02, 2009 |
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New evidence-based recommendations developed by the Surgical Infection Society to guide physicians in the diagnosis and management of complicated skin and soft tissue infections have been published in Surgical Infections.
STPSat-1 successfully completes extended mission
Space & Earth / Space Exploration
Dec 02, 2009 |
5 / 5 (1) |
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The STPSat-1, built for the Department of Defense (DoD) Space Test Program (STP) and operated by the DoD STP for the first year then transitioned to NRL for the last 16 months, was decommissioned on October ...
Obesity will snuff out health benefits gained by smoking declines
Dec 02, 2009 |
5 / 5 (1) |
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If obesity trends continue, the negative effect on the health of the U.S. population will overtake the benefits gained from declining smoking rates, according to a study by U-M and Harvard researchers published today in the ...
Ecstasy may be linked to sleep apnea
Medicine & Health / Neuroscience
Dec 02, 2009 |
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1
New research shows that recreational users of the drug known as ecstasy may be at a higher risk for sleep apnea. The study is published in the December 2, 2009, online issue of Neurology.
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