May 15, 2013 |
For the first time, scientists have created human embryos that are genetic copies of living people and used them to make stem cells - a feat that paves the way for treating a range of diseases with personalized body tissues but also ignites fears of human cloning. If replicated in other labs, the methods detailed Wednesday in the journal Cell would allow researchers to fashion human embryonic stem cells that are custom-made for patients with Alzheimer's disease, diabetes and other health problems.
May 11, 2013 |
Bubbles are a serious business. While they're beloved as a childhood pastime and a bathtub luxury, the physics behind the delicate, iridescent clusters remains remarkably complex. Now mathematicians have pinned down the ephemeral physical processes that mark the life, and death, of these suds. Their findings, published this week in the journal Science, could prove useful to chemical engineers seeking to better understand all kinds of foams, from shaving cream to plastic insulation.
CALIFORNIA | LOCAL
May 10, 2013 |
In a major case of academic poaching involving crosstown rivals, USC has lured away two prominent neuroscientists from UCLA with a promise to expand their internationally renowned lab that uses brain imaging techniques to study Alzheimer's disease, schizophrenia, autism and other disorders. Arthur Toga and Paul Thompson will move to the USC Keck School of Medicine campus next fall, along with scores of graduate students, postdoctoral fellows and staffers who now work at UCLA's Laboratory of Neuro Imaging, known as LONI.
May 8, 2013 |
Marine biologist Dan Madigan stood on a dock in San Diego and considered some freshly caught Pacific bluefin tuna. The fish had managed to swim 5,000 miles from their spawning grounds near Japan to California's shores, only to end up the catch of local fishermen. It was August 2011, five months since a magnitude 9 earthquake and tsunami had struck in Japan, crippling the Fukushima Daiichi power plant. Madigan couldn't stop thinking about pictures he'd seen on TV of Japanese emergency crews dumping radioactive water from the failing reactors into the Pacific Ocean.
May 7, 2013 |
WASHINGTON -- An often-heard criticism of American politics is that lawmakers listen only to the views of their wealthy constituents, not to the poor. The recent vote in Congress to exempt the air traffic control system from across-the-board budget cuts -- a move that primarily benefited fliers, who tend to be more affluent than the average American -- provided a case in point. But was that vote typical of the system overall or a special case? New research that directly compares lawmakers' votes with the positions taken by their constituents challenges the view that the voices of the wealthy consistently drown out those of the poor.
CALIFORNIA | LOCAL
May 7, 2013 |
The number of violent crimes involving guns has plummeted in the last two decades, but more than half of Americans think the opposite is true, according to reports released Tuesday. Killings, assaults, robberies and other crimes involving guns have dropped since their peak in the mid-1990s, the federal Bureau of Justice Statistics reported. The rate of killings by gun has been cut nearly in half, according to another analysis of the same data by the Pew Research Center. The rate of other violent gun crimes fell even more sharply, by 75%, paralleling a broader drop in violent crimes committed with or without guns.