Archive: 02/14/2007

Mummy's amazing American maize

The far-reaching influence of Spanish and Portuguese colonisers appears not to have extended to South American agriculture, scientists studying a 1,400-year-old Andean mummy have found.

Feb 14, 2007
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Studies identify DNA regions linked to nicotine dependence

Americans are bombarded with antismoking messages, yet at least 65 million of us continue to light up. Genetic factors play an important role in this continuing addiction to cigarettes, suggest scientists at Washington University ...

Feb 14, 2007
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'Gateway' gene discovered for brain cancer

Researchers have discovered that the same genetic regulator that triggers growth of stem cells during brain development also plays a central role in the development of the lethal brain cancer malignant glioma. In experiments ...

Feb 14, 2007
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New Organic Gold-Nanoparticle Memory Device

Researchers have developed a new memory device that uses gold nanoparticles and the organic semiconducting compound pentacene. This novel pairing is a key step forward in the drive to develop organic "plastic" ...

Feb 14, 2007 feature
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