'Nano-needle' operates on cell. Scientists have performed a delicate surgical operation on a single living cell, using a needle that is just a few billionths of a metre wide. [BBC News | Technology | UK Edition]000000comment []


Evidence for Genetic Link to Alcoholism. A genetic difference at the opiate receptor gene affects a person's response to alcohol Previous research has implicated the brain's opioid system in the development of ... [World of Psychology]000000comment []