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...along the fault causes small cracks within the rock during the final hours before an earthquake, increasing rock density and slowing the transmission signals. "The more cracks you have, the slower the seismic velocity," says study co-author Paul Silver, a geophysicist with the Carnegie Institution of Washington. Still unknown is whether there is any significance to the fact that the magnitude-3 quake had a much longer pre-seismic signal than the lower-magnitude quake, or whether it was simply because its magnitude was larger and its epicenter closer to the sensors...
Until last week, Frank L. was an unknown 41-year old former policeman who worked in geriatric care to supplement his meager welfare stipend, and in his spare time enjoyed an occasional beer at the pub. Last Saturday, though, a moment of vandalism turned Frank L. into something of a national hero, mentioned by some in the same breath as the legendary Claus Schenk Graf von Stauffenberg, who led a failed assassination attempt against Hitler in 1944. Frank L. accomplished his extraordinary rise from obscurity to national celebrity through a simple act of decapitation...
...Hospital Philadelphia. Part of that risk could be a shift toward the quick-fix prescription and away from prevention programs involving diet and exercise to address obesity and surging cholesterol levels. Most pediatricians are wary of moving too quickly to medicate children, especially when the potential side effects are unknown. But it's certainly easier to scribble a prescription than it is to get young patients to eat better and exercise more. And then there's the possible cascade effect. "We can add statins to help overweight children," says Ludwig of Children's Hospital Boston. "But what about the next...
...friends, along with many of the other young people of Changsha, remain in a state of postponed adulthood. Unemployed and disaffected, they have embraced a kind of blissful ambivalence towards life as they float between parties, drugs, and a sexual freedom unknown to their elders. Some run small businesses - DIY music venues, tattoo parlors, head shops. Mao Ce himself occasionally gigs as a DJ, but in a city as localized and provincial as Changsha, he has few prospects for making a career of it. "I have no wishes or dreams", he says. "When I was young I had dreams...
...families affected by fragile X can discuss their genome with startling specificity. Their key concern is a small strip of DNA on the long arm of the X chromosome. Normally, humans have five to 55 repetitions of the nucleotides CGG (cytosine, guanine, guanine) in this region. But for unknown reasons, the number of CGG repeats can expand beyond normal as the DNA is copied from mother to child...