News tagged with physical harm
Squeezing polymers produces chemical energy but raises doubts about implant safety
A polymer is a mesh of chains, which slowly break over time due to the pressure from ordinary wear and tear. When a polymer is squeezed, the pressure breaks chemical bonds and produces free radicals: ions with unpaired electrons, ...
Mar 02, 2012 |
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High school put-downs make it hard for students to learn, study says
High-school put-downs are such a staple of teen culture that many educators don't take them seriously. However, a University of Illinois study suggests that classroom disruptions and psychologically hostile school environments ...
Other Sciences / Social Sciences
Sep 01, 2009 |
3 / 5 (2) |
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Psychologists' study finds TV ratings for kids' shows don't reflect aggressive content
(PhysOrg.com) -- A new study by psychologists from Iowa State University and Linfield College has found that TV ratings don't accurately reflect the aggressive content found in shows popular among children ...
Medicine & Health / Psychology & Psychiatry
Feb 25, 2009 |
1 / 5 (1) |
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Search results for physical harm
Rapid coral death by a deadly chain reaction
(Phys.org) -- Most people are fascinated by the colorful and exotic coral reefs, which form habitats with probably the largest biodiversity. But human civilisation is the top danger to these fragile ecosystems ...
May 24, 2012 |
4.2 / 5 (5) |
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Food, water safety provide new challenges for today's sensors
Sensors that work flawlessly in laboratory settings may stumble when it comes to performing in real-world conditions, according to researchers at the Department of Energy's Oak Ridge National Laboratory.
May 24, 2012 |
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Nanosheet catalyst discovered to sustainably split hydrogen from water
(Phys.org) -- Hydrogen gas offers one of the most promising sustainable energy alternatives to limited fossil fuels. But traditional methods of producing pure hydrogen face significant challenges in unlocking ...
May 10, 2012 |
5 / 5 (15) |
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NTU scientists invent superbug killers
The superbugs have met their match. Conceived at Nanyang Technological University (NTU), it comes in the form of a coating which has a magnetic-like feature that attracts bacteria and kills them without the need for antibiotics.
May 10, 2012 |
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US science group says it's time to start burying plutonium
(Phys.org) -- As researchers the world over continue to try to find a way to meet the energy needs of an over populated planet, negative consequences for choices already made continue to pile up. Global warming ...
Technology / Energy & Green Tech
May 10, 2012 |
3 / 5 (10) |
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Graphene-based terahertz devices: The wave of the future
People use electromagnetic energy every day … watching television, listening to the radio, popping corn with a microwave, taking an X-ray or using a cellphone. This energy travels in the form of waves, ...
Nanotechnology / Nanomaterials
May 02, 2012 |
4.7 / 5 (13) |
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Polluting China for the sake of economic growth
China's economic growth will continue to be energy-intensive and highly polluting for the foreseeable future with emissions and efficiency far below capital growth on the agenda, according to a study published in the International Jo ...
Other Sciences / Economics & Business
Apr 27, 2012 |
4.5 / 5 (2) |
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'Warming hole' delayed climate change over eastern United States: study
Climate scientists at the Harvard School of Engineering and Applied Sciences (SEAS) have discovered that particulate pollution in the late 20th century created a "warming hole" over the eastern United States—that ...
Space & Earth / Earth Sciences
Apr 26, 2012 |
4.1 / 5 (24) |
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Researchers find mechanism that gives plants 'balance'
When a plant goes into defense mode in order to protect itself against harsh weather or disease, that's good for the plant, but bad for the farmer growing the plant. Bad because when a plant acts to defend ...
Apr 23, 2012 |
5 / 5 (2) |
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Official: Dolphin deaths in Peru still a mystery
(AP) -- Peruvian authorities are still trying to unravel the mystery of why hundreds of dolphins ended up dead on beaches in the country over the past 2 1/2 months.
Apr 21, 2012 |
5 / 5 (1) |
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List of search results for physical harm
