Like a coin machine sorting change according to size, a new lab-on-a-chip can sift cells according to their weight and other properties. Doctors could use it to tease out biological matter from the bloodstream and detect cancer or potentially other ailments.
As any soldier will tell you, consistent and realistic drill forms the foundation of any successful military action. But whereas an infantryman can hone his aim at a firing range, America's Internet warriors don't have a similar venue for developing their skills at cyberwar. But DARPA hopes a $51 million network simulation, complete with computer programs that behave like human targets and adversaries, will provide the perfect arena for developing the next generation of cyberwar weapons and tactics.
A pair of twins is born, and both infants begin to develop normally. By their first birthday, however, the male sibling has begun to diverge from his sister, showing less eye contact and affection. He often wears a spaced-out expression and fixates on certain puzzles and patterns. By age three, his mounting symptoms lead to a diagnosis that has become disturbingly routine in recent years: autism.
What causes the disease, which now strikes 1 in every 166 children, and why does it affect four times as many boys as girls?
The Issue: Just in time for Valentineâ€™s Day, the news hit that
a breakup or a surprise party could kill us. Well, not quite
By Rebecca SklootPosted 05.24.2005 at 11:00 am 0 Comments
When mosquitoes brought West Nile virus to New York, all the papers said it was going to be the next big deadly epidemic (which, of course, it wasn’t). The day the news came out, I was in my garden in Pittsburgh, and a mosquito landed on my arm. I smacked it, then immediately thought, “Oh my god! West Nile virus!” So I ran inside and did something I hadn’t done since grade-school summer camp: I doused myself with insect repellant. Then I got a whiff of the fumes and remembered I just read an article saying insecticides cause Parkinson’s disease!
In our March feature story, Sally Has 2 Mommies + 1 Daddy, life sciences associate editor Rebecca Skloot noted that each year, thousands of women expose themselves and their future children to fertility treatments . Yet most of these treatments have not been tested for safety, and are not subject to regulation. These technologies—like in vitro fertilization (IVF) and the method used for injecting sperm into eggs—have now been connected to a risk of serious birth defects.