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Science News Archive May 1996


Drug Treatment Programs Don't Work

Research by Oregon State University's John Gillis suggests that drug treatment programs don't work, and instead, motivation for getting clean must come from within. The professor notes that relapses are inevitable unless underlying causes of addiction are addressed in the long term.

DNA Imaging to Design Better Drugs

Researchers at Georgia Institute of Technology have developed a new method to examine and quickly map how nucleic acid ligands bind to and alter DNA at the molecular level. This allows for direct visualization of individual DNA molecules, providing crucial information on drug binding and mode of action.

Penn State Students Send Experiments Aboard Shuttle

The Penn State students will test off-the-shelf semiconductor chips to learn the effect of high energy particle radiation on standard semi-conductors. They will also measure how much micro debris hits the shuttle using a piezoelectric device, and map the Earth's magnetic field as it flies through it.

Rosemary May Have Anti-Cancer Properties

A study published in the Journal of Nutrition found that rosemary significantly inhibited the binding of a known cancer-causing agent to DNA in mammary cells, reducing tumor formation by 76 percent in rats fed a diet supplemented with 1 percent rosemary.

Dating A Caveman

Geochronologist Richard Ku's analysis of Peking Man fossils reveals they date back to at least 400,000 years ago, significantly older than previous estimates. This finding sheds new light on human evolution and challenges current understanding of the species' origins.

Looking At The Sun Through New Eyes

The SOHO mission has provided stunning images of the Sun's south polar region, revealing that even in quiet areas, there is tremendous activity. The observations suggest that solar plumes are associated with small regions of high magnetic activity and are more dynamic than previously thought.