News
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PaleontologyWas it sudden death for the Permian period?
The massive extinctions that came at the end of the Permian period could have occurred within a mere 8,000 years, which suggests a catastrophic cause for the die-offs.
By Sid Perkins -
Possible Alzheimer’s vaccine seems safe
A vaccine intended to slow or prevent the devastation of Alzheimer's disease appears promising, according to preliminary tests in people.
By John Travis -
TechTechnique boosts data rate in light pipes
Turning a liability into an asset, a new technique for passing information through optical fibers increases the data flow by exploiting the very trait that has long held that flow back.
By Peter Weiss -
Mental ills attract alternative therapies
A substantial minority of people suffering from mental ailments seek out alternative treatments, such as herbal medicines and nutritional regimens, usually without telling their physicians.