News tagged with potentially toxic
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Older dental fillings contain form of mercury unlikely to be toxic
Dec 09, 2009 |
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A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal ...
'Safety valve' protects photosynthesis from too much light
Nov 25, 2009 |
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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 ...
WHO: Treat HIV patients sooner
Medicine & Health / HIV & AIDS
Nov 30, 2009 |
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(AP) -- People infected with the virus that causes AIDS should start treatment earlier than currently recommended, the World Health Organization said Monday.
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