الأحد، 11 مارس 2012

ScienceDaily: Top News

ScienceDaily: Top News

Thermonuclear behavior of unique neutron star captured

Posted: 10 Mar 2012 12:00 PM PST

A neutron star is the closest thing to a black hole that astronomers can observe directly, crushing half a million times more mass than Earth into a sphere no larger than a city. In October 2010, a neutron star near the center of our galaxy erupted with hundreds of X-ray bursts that were powered by a barrage of thermonuclear explosions on the star's surface. NASA captured the month-long fusillade in extreme detail.

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.
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