News tagged with environmental toxic
Too much of a good thing: Excessive DNA repair can lead to retinal degeneration
Jan 09, 2009 |
3.8 / 5 (6) |
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(PhysOrg.com) -- A naturally occurring DNA repair system that normally protects cells from damage can cause retinal degeneration and blindness when overstimulated, according to a new study by MIT researchers.
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'Safety valve' protects photosynthesis from too much light
Nov 25, 2009 |
4.7 / 5 (3) |
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Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death. Scientists ...
Autism treatment: Risky alternative therapies have little basis in science
Nov 24, 2009 |
3 / 5 (2) |
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James Coman's son has an unusual skill. The 7-year-old, his father says, can swallow six pills at once. Diagnosed with autism as a toddler, the Chicago boy had been placed on an intense regimen of supplements and medications ...
The e-waste dilemma
Nov 24, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Electronic devices could create significant environmental and health problems after they are thrown away. UC Irvine researchers are working with engineers, manufacturers and public health ...
Insect resistance to Bt crops can be predicted, monitored and managed
Nov 23, 2009 |
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Since 1996, crop plants genetically modified to produce bacterial proteins that are toxic to certain insects, yet safe for people, have been planted on more than 200 million hectares worldwide. The popularity of these Bt ...
Dutch researchers make breakthrough in bioethanol production from agricultural waste
Nov 20, 2009 |
3.8 / 5 (4) |
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With the introduction of a single bacterial gene into yeast, researchers from Delft University of Technology in the Netherlands achieved three improvements in bioethanol production from agricultural waste material: 'More ...
Battery Research Aims To Store Renewable Energy
Nov 19, 2009 |
4.1 / 5 (13) |
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The biggest chemical battery in the United States is located near Interstate 90 in the small town of Luverne, Minn. The 80 ton device -- the size of two tractor-trailers stacked on top of each other -- stores ...
Hidden Risks Of Modular Classrooms
Nov 18, 2009 |
5 / 5 (1) |
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Every school day, more than 5 million students in the United States attend lessons held in modular classrooms. With new carpeting and paint, metal roofs and noisy ventilation systems, they can be a health ...
Nanoparticles used in common household items caused genetic damage in mice
Nanotechnology / Bio & Medicine
Nov 16, 2009 |
4.8 / 5 (24) |
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Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...
Electronic Waste Needs to Go Green
Nov 10, 2009 |
3 / 5 (2) |
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(PhysOrg.com) -- Americans love their consumer electronics, but what happens to all the gadgets when their useful life is over? Despite being one of the largest generators of "e-waste" in the world, the U.S. has no federal ...
Additive copper-zinc interaction affects toxic response in soybean
Nov 10, 2009 |
3 / 5 (1) |
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Agricultural soils accumulate trace metals, particularly copper and zinc, as a result of their presence in wastes (sewage biosolids and manures) and fungicides that are applied over long periods of time. Regulations and guidelines ...
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