SCIENCE IN THE NEWS WEEKLY
Panel Advises Dropping PSA Test
A government task force made the controversial recommendation last week that the PSA test should be abandoned as a prostate cancer screening tool. The panel came to that conclusion after determining that the side effects from needless biopsies and treatments hurt many more men than are potentially helped by early detection of cancers.
In other biomedical news, a new study suggests that long-acting birth control devices are nearly 22 times as reliable as contraceptive pills or other short-acting approaches that need close monitoring.
Nearly one in four American adolescents may be on the verge of developing Type 2 diabetes or could already be diabetic, representing a sharp increase in the disease's prevalence among children ages 12 to 19 since a decade ago.
And, finally, the government proposed that all baby boomers get tested for hepatitis C. Anyone born from 1945 to 1965 should get a one-time blood test to see if they have the liver-destroying virus, the Centers for Disease Control and Prevention said in draft recommendations issued last week.
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PODCASTS: Expanding With the Cosmos
Using the Atacama Cosmology Telescope (ATC), a 6.5-meter microwave collector in Chile, cosmologists are piecing together the early history of the known universe. In an exclusive American Scientist interview, Arthur Kosowsky—a member of the ATC team and a professor in the Department of Physics and Astronomy at the University of Pittsburgh—discusses how he is using ATC to reach back in time billions of years to search for gravitational waves that could verify inflation and reveal unprecedented details about how the cosmos was born.
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