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...there are more questions than answers. Most important among them: Exactly what is going on in Mexico, where epidemiologists are still working to understand the swine flu outbreak? Uncertainty, however, is unavoidable when it comes to influenza - a shifty, erratic virus that is harder to get a handle on than, well, a greased pig. "There is no standard picture for how this will develop," said Fukuda. "We don't know...
Muniz, her ex and her children are among the 2,025 families who volunteered to be genetically tested for a vast registry called the Autism Genetic Resource Exchange (AGRE), assembled to help researchers untangle the complex genetics of autism. Now that effort is beginning to pay off. The largest genetic study of autism ever attempted - involving more than 3,000 participants from AGRE, 1,453 cases from other sources and over 7,000 additional control subjects - identified genetic variations in a region of chromosome 5 that appears to play a pivotal role in about 15% of cases of autism. What...
...Nature, published by the same team at CHOP along with scientists at numerous other institutions, looked at a specific kind of genetic change: deletions and duplications of genes. While there are many such changes associated with autism, most are very rare. This paper, however, found an intriguing pattern among two genes already linked to autism and nine newly identified targets. Most play a role in two key systems in the brain. One is the same brain-wiring system - neural cell adhesion - implicated in the first paper. The second is a set of housekeeping proteins - the ubiquitin system - that whisk away...
...Malan says that his motivation to broaden CS50’s appeal stems from his own experience with the class when he was an undergraduate at Harvard. Originally a government concentrator, he didn’t take CS50 until his sophomore year. “It was reputed even among the geeky circles I was already running with that it was a scary course, that it was supposed to have a lot of work,” says Malan. Since he began teaching the course two years ago, Malan has sought to dispel this stigma. He’s brought...
...Interestingly, among respondents with kids, women reported spending more time (31.6 hours) caring for their children than did men (17.4), but that didn't make those women rise slower than their childless peers - just the opposite. Married moms moved up in 8.2 years, compared to 9.4 for married women without kids. "Women become highly focused when they have so many different things to do," says Woodward. "When I was an associate professor and had just had a baby, I knew when I had four hours to work on a project, I was really going to work on that project." (This...