Archive: 08/24/2006

Researchers provide first evidence for learning mechanism

Finally confirming a fact that remained unproven for more than 30 years, researchers at MIT's Picower Institute for Learning and Memory report in the Aug. 25 issue of Science that certain key connections among neurons get st ...

Aug 24, 2006
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Brain enzyme treatment relieves memory lapse in Alzheimer's mice

An enzyme that helps neurons rid themselves of excess or aberrant proteins is required for normal brain function, according to a new report in the August 25, 2006 issue of the journal Cell. What's more, by increasing brain ...

Aug 24, 2006
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Unusual rods get thicker when stretched

Day-to-day experience teaches us that stretching an object makes it thinner; pushing it together makes it thicker. However, there are also materials that behave contrary to our expectations: they get thicker when stretched ...

Aug 24, 2006
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Adult stem cells are touchy-feely, need environmental clues

A certain type of adult stem cell can turn into bone, muscle, neurons or other types of tissue depending on the "feel" of its physical environment, according to researchers at the University of Pennsylvania.

Aug 24, 2006
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Study: unprotected sex common among teens

A study by Brown University in Providence, R.I., has suggested that U.S. teenagers use condoms more often with casual partners than with a main partner.

Aug 24, 2006
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Tea seen as healthier than water

British researchers say consuming tea is healthier than drinking water not only for hydration but for other benefits.

Aug 24, 2006
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FDA OKs morning-after pill retail sale

Over-the-counter sale of Plan B, or the morning-after contraceptive pill was approved by the U.S. Food and Drug Administration Thursday.

Aug 24, 2006
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Viruses Can Jump Between Primates and Humans

Viruses that jump the species barrier between monkeys and humans can harm both people and animals, and we should take steps to reduce the risk of virus transmission. That's the message running through the September issue ...

Aug 24, 2006
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New Definition of 'Species' Could Aid Species Identification

Scientists at Texas Tech University argue that defining mammalian species based on genetics will result in the recognition of many more species than previously thought present. This has profound implications for our knowledge ...

Aug 24, 2006
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