April 23, 2003 Fifty years ago this week, a paper in the British science journal Nature described the structure of DNA. This discovery kicked off a revolution in biology that brought with it fear as well as excitement. The ability to tinker with genes raised the specter of monster organisms that might threaten the world. As NPR's Joe Palca reports, back then it was scientists who took the lead in resolving such issues, but today it may not be researchers who get to choose how controversial science progresses.
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April 22, 2003 NPR's Joe Palca has the first in a series of stories marking the 50th anniversary of the discovery of the double helix, the three-dimensional chemical structure of DNA. A half-century ago this week, the British science journal, Nature, published a one-page report by James Watson and Francis Crick, which immediately explained how genetic instructions are passed from one generation to the next.
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April 10, 2003 Two new scientific papers are at odds over the question of whether it's currently possible to clone humans. One study suggests it's impossible with current methods. But earlier this week, a fertility doctor in Kentucky reported that he had successfully created a very early human embryo clone. NPR's Joe Palca reports.
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March 29, 2003 Doctors at the Centers for Disease Control and Prevention say there are now more than 60 suspected cases of Sudden Acute Respiratory Syndrome (SARS) in the United States. The disease, which is believed to have originated in China, has no specific treatment, but there should soon be a blood test to help confirm suspected cases of the disease. Hear NPR's Joe Palca.
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March 28, 2003 China pledges to work more openly with international health officials investigating Severe Acute Respiratory Syndrome, or SARS. Health experts have criticized China for being too slow to reveal information on the flu-like disease's spread. SARS has taken its highest toll in China, with 806 cases and 34 deaths. NPR's Rob Gifford and NPR's Joe Palca report.
March 28, 2003 NPR's Joe Palca reports on measures being taken at hospitals to prevent the spread of Severe Acute Respiratory Syndrome, or SARS. The syndrome produces pneumonia, so it's hard to distinguish SARS from everyday cases of pneumonia. Hospital officials say standard infection control measures can prevent the spread of the disease.
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March 25, 2003 U.S. Special Operations forces conduct some of the most dangerous missions in a war. Yale researchers say these elite troops have brain chemicals that respond differently to high-stress situations, setting them apart from others in the military. NPR's Joe Palca reports.
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March 24, 2003 NPR's Joe Palca recaps the latest news about the war in Iraq.
March 23, 2003 NPR's Joe Palca has the latest developments on the war in Iraq.
March 23, 2003 A new aerial assault on Baghdad begins without the now familiar warning from air-raid sirens. U.S. officials cite progress in the war in Iraq, but U.S. troops also meet some of the stiffest resistance of the conflict so far, taking losses in Najaf and Nasiriyah. A 27-year-old Army sergeant is detained in a grenade attack on tents at the U.S. 101st Airborne Command center in Kuwait. And U.S. officials condemn the broadcast of images of U.S. soldiers held by Iraqi captors. NPR's Joe Palca reports.
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