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Sunday, March 11, 2012

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News

Scientists discover effects of PD-1 blockade on ART therapy in SIV-infected monkeys

Posted: 08 Mar 2012 02:49 PM PST

Scientists have discovered that blocking PD-1, an immune molecule that inhibits the immune response to viral infections, can have a significant effect on HIV-like illness in non-human primates.

Ancient fossil remains reveal Velociraptor's last meal

Posted: 06 Mar 2012 10:13 AM PST

Scientists have discovered a bone from a Pterosaur in the guts of the skeletal remains of a Velociraptor that lived in the Gobi Desert about 75 million years ago. The findings support the idea that Velociraptor, a carnivore with a specialized sickle-shaped slashing talon on the second toe of each foot and large grasping hands, would also scavenge on any available carcasses.

Circadian nitrogen balance impacts survival, susceptibility to diseases

Posted: 06 Mar 2012 10:08 AM PST

Researchers have demonstrated that nitrogen balance, the process of utilizing amino acids and disposing of their toxic byproducts, occurs with a precise 24-hour rhythm – also known as circadian rhythm – in mammals.

New report questions hard-edged 'living shorelines' in estuaries

Posted: 05 Mar 2012 10:24 AM PST

The increasing use of large breakwaters and other hard structures to reduce erosion in "living shorelines" along coastal estuaries may be no better for the environment than the ecologically harmful bulkheads they were designed to replace, according to a new report.
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