Archive: 07/08/2008

Perseid Meteor Shower To Peak Aug. 12

The annual Perseid meteor shower will be visible in the night sky throughout Colorado and will peak during the early morning hours of Aug. 12, according to an astronomy expert at the University of Colorado at Boulder.

dateAug 07, 2008 in Space Exploration
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Pheromones enhance sex, slow aging -- in worms

(PhysOrg.com) -- People will pay big bucks for pills that promise to enhance sex or slow aging. Now, a Cornell researcher and colleagues have uncovered a class of small molecules in tiny worms that not only attract mates ...

dateAug 07, 2008 in
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A positive-feedback system ensures that cells divide

(PhysOrg.com) -- In the life of every cell, there’s a point of no return. Once it enters the cell cycle and passes a checkpoint known as “Start,” a cell will follow the steps it needs to divide — no matter what changes ...

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Scientists create 20 disease-specific stem cell lines

(PhysOrg.com) -- Harvard Stem Cell Institute researcher George Q. Daley, associate director of the Stem Cell Program at Children's Hospital Boston, has with HSCI colleagues Chad Cowan and Konrad Hochedlinger of Massachusetts ...

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Putting microRNAs on the stem cell map

Embryonic stem cells are always facing a choice—either to self-renew or begin morphing into another type of cell altogether. It's a tricky choice, governed by complex gene regulatory circuitry driven by a handful of key ...

dateAug 07, 2008 in
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