Δευτέρα 26 Μαρτίου 2012

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Extreme weather of last decade part of larger pattern linked to global warming

Posted: 25 Mar 2012 02:32 PM PDT

The past decade has been one of unprecedented weather extremes. Scientists now argue that the high incidence of extremes is not merely accidental. From the many single events a pattern emerges. At least for extreme rainfall and heat waves the link with human-caused global warming is clear, the scientists show in a new analysis of scientific evidence.

A double ring ceremony prepares telomerase RNA to wed its protein partner

Posted: 25 Mar 2012 02:30 PM PDT

Few molecules are more interesting than DNA—except of course RNA. After two decades of research, that "other macromolecule" is no longer considered a mere messenger between glamorous DNA and protein-synthesizing machines. We now know that RNA has been leading a secret life, regulating gene expression and partnering with proteins to form catalytic ribonucleoprotein (RNP) complexes.

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