Internal clock, external light regulate plant growth
Biology /
Jul 09, 2007 |
3 / 5 (2) |
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Most plants and animals show changes in activity over a 24-hour cycle. Now, for the first time, researchers have shown how a plant combines signals from its internal clock with those from the environment to show a daily rhythm ...
Study evaluates brain lesions of older patients
Jul 09, 2007 |
5 / 5 (1) |
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Lesions commonly seen on MRI in the brains of older patients may be a sign of potentially more extensive injury to the brain tissue, according to a recent study conducted by researchers at the Duke University Medical Center, ...
'Virtual' mouse brains now available online
Biology /
Jul 09, 2007 |
5 / 5 (1) |
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A multi-institutional consortium including Duke University has created startlingly crisp 3-D microscopic views of tiny mouse brains -- unveiled layer by layer -- by extending the capabilities of conventional magnetic resonance ...
Scientists identify 2 distinct Parkinson's networks
Jul 09, 2007 |
4 / 5 (1) |
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The disease that causes tremors, rigidity and slowed movements in a million Americans also targets another brain network that regulates cognitive thought and the ability to carry out everyday tasks.
Climate change reduces Queensland's bat numbers
Biology /
Jul 09, 2007 |
2 / 5 (1) |
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A central eastern Queensland mine has turned up bat fossils which show climate change has had a negative impact on the state’s bat population.
Size and positioning of floral anthers facilitates
Biology /
Jul 09, 2007 |
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Unlike moths and butterflies that are often brilliantly colored to warn potential predators that they carry toxins, flowers and the fruits they produce have brilliant colors and unusual shapes because they want to attract ...
Endeavour is readied for launch pad move
Space & Earth / Space Exploration
Jul 09, 2007 |
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NASA technicians worked Monday to ready space shuttle Endeavour for its move to Launch Pad 39A at the Kennedy Space Center in Florida.
