Radioactivity's danger overstated?

Medicine & Health / Other

Nov 24, 2007 | 3.5 / 5 (15) | 0

Studies of some of the worst radiation incidents show effects on workers and residents aren't nearly as severe as commonly thought, a German newspaper said.

Rebuilding the evolutionary history of HIV-1 unravels a complex loop

Biology /

Nov 24, 2007 | 4 / 5 (5) | 0

An essential component of the human immunodeficiency virus (HIV-1) molecular machinery responsible for infecting cells consists of functionally-specialized layers, according to a study by investigators at the University of ...