The Disappearing Male - Doc Zone | CBC-TV
Dec. 21st, 2008 05:09 pmThe Disappearing Male - Doc Zone | CBC-TV
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Neutrons not so neutral after all, study says - Among atomic particles, the neutron seems the most aptly named: Unlike the positively charged proton or the negatively charged electron, neutrons have a charge of zero. But new experiments conducted in three particle accelerators suggest the neutron is more like an onion when it comes to electromagnetism: with a negatively charged exterior and interior and a positively charged middle sandwiched between them. |
Physics Org |
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Printing with enzymes instead of ink - Scientists in North Carolina are reporting development and testing of a method for printing finely-detailed microscopic images with an enzyme, rather than ink. The new technology, termed biocatalytic microcontact printing, involves coating a nano-“stamp” with an enzyme — a protein that speeds up chemical reactions. The enzyme then digests away a layer on the surface, leaving behind an imprint almost like an old-fashioned rubber stamp. Because no diffusion of ink is involved in the process, the resolution of microcontact printed images is about one hundredfold greater than possible with conventional technology. |
Researchers say lack of sleep doubles risk of death... but so can too much sleep - Researchers from the University of Warwick, and University College London, have found that lack of sleep can more than double the risk of death from cardiovascular disease. However they have also found that point comes when too much sleep can also more than double the risk of death. |
ABC News: Technology & Science |
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National Geographic News |
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Science Blog |
If you want more babies, find a man with a deep voice - Men who have lower-pitched voices have more children than do men with high-pitched voices, researchers have found. And their study suggests that for reproductive-minded women, mate selection favours men with low-pitched voices. |
Slashdot |
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Source: New Scientist Small interfering RNA (siRNA) have been suggested as a way to combat HIV, if only they could get the molecules into the HIV cells. Stanford researchers have demonstrated that siRNA molecules can be embedded in carbon nanotubes which are able to enter the HIV cells and, hopefully, deposit the molecule. Early results are good, pointing the way to a potential future treatment method. |