An incentive system that gave bonuses to teachers upfront, with the threat of having to give the money back if student performance didn't improve, proved effective in one study.
Watson, now 84, says sequencing helped explain his past sensitivity to certain drugs. But he didn't want to know everything his sequenced genome revealed about his health future.
Courtesy of Cold Spring Harbor Laboratory
A U.S. Predator drone flies through the night sky over Kandahar Air Field in Afghanistan. Drone strikes ordered by the Obama administration have killed more than a dozen al-Qaida leaders around the world.
A medical worker from the U.S. Centers for Disease Control and Prevention works at the laboratory where Ebola specimens from the Congo were tested at the start of the latest outbreak.
Big East commissioner Mike Aresco answers questions from the media before an NCAA college football game. Aresco says there are no plans for the conference to change its name.