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...overflow in degree holders is the result of many weaker students attending colleges when other options may have served them better. "There is tremendous pressure to push kids through," he says, adding that as a result, too many students who aren't skilled become degree holders, promoting a perception among employers that higher education doesn't work. "That piece of paper no longer means very much, and employers know that," says Nemko. "Everybody's got it, so it's watered down...
...fair share of skepticism. In September, a $105 million trial of a novel combination of two older vaccines was the first to show protection against HIV infection. The results of the trial, which involved more than 16,000 volunteers, suggested that the vaccine was 31% effective at preventing infection among those who were inoculated. It was a modest outcome, given that behavior-based prevention methods, like condom use, can be equally if not more effective. The volunteers were also largely heterosexual and monogamous, putting them at low-to-moderate risk for HIV infection - rather than high-risk, like intravenous drug...
...among the thousands of American women who have survived breast cancer, you probably find yourself thinking twice about everything you do - what you eat, how much you exercise - to ensure that you don't increase your risk of developing another tumor. It's a natural response to a difficult diagnosis, but it can be challenging, especially when it comes to diet: most breast tumors are driven by the hormone estrogen, but estrogen is frequently found in many popular foods, from some types of milk and yogurt to breakfast bars to tofu and those addictive edamame beans...
...least once a week increased from 15% in 1997 to 28% in 2003. In the meantime, studies on the effect of soy on breast-cancer recurrence and mortality have been conflicting, with some showing that it can reduce risk, while others show an elevated rate of recurrent disease among frequent consumers of soy. (See breast cancer's fundraising warrior...
...Among the women consuming the most soy, the risk of death from breast cancer four years after diagnosis was 7.4% and the risk of recurrence was 8%. Women in the lower soy-intake group had higher risks: a 10.3% risk of death from breast cancer and an 11.2% risk of recurrence. "I think based on our study, I am quite comfortable saying that soy food, particularly a moderate amount, is safe, and potentially beneficial," says the study's lead author, Dr. Xiao-Ou Shu, an epidemiologist at Vanderbilt...