GALVESTON, Texas – The vast majority of HIV-infected Texas prison inmates who receive antiretroviral therapy while incarcerated experience significant interruptions in HIV treatment after their release into the community. This disturbing finding is the result of a 4-year study of more than 2,000 inmates with HIV infection released from Texas Department of Criminal Justice prisons between January 2004 and December 2007. The study, led by University of Texas Medical Branch at Galveston epidemiologist and associate professor Jacques Baillargeon, will appear in the Feb. 25 issue of the Journal of the American Medical Association.

"Psychedelica" seems the perfect name for a species of fish that is a wild swirl of tan and peach zebra stripes and behaves in ways contrary to its brethren. So says University of Washington's Ted Pietsch, who is the first to describe the new species in the scientific literature and thus the one to select the name.

Scientists from Queen Mary, University of London have discovered that an ancient system of communication found in primitive bacteria, may also explain how plants and algae control the process of photosynthesis.

A team of scientists, led by the University of Exeter, has used game theory to explain the bizarre behaviour of a group of ravens. Juvenile birds from a roost in North Wales have been observed adopting the unusual strategy of foraging for food in 'gangs'. New research, published in the journal PLoS One (on Wednesday 25 February 2009), explains how this curious behaviour can be predicted by adapting models more commonly used by economists to analyse financial trends.

Stem cells scientists at UCLA showed for the first time that human induced pluripotent stem (iPS) cells can be differentiated into electrically active motor neurons, a discovery that may aid in studying and treating neurological disorders.

Scientists have developed a way to manipulate bacteria so they will grow mutant sugar molecules on their cell surfaces that could be used against them as the key component in potent vaccines.