Volume 283, Issue 4
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Features
The Third-Generation Gap
Operating on a Beating Heart
Coronary bypass surgery can be a lifesaving operation. Two new surgical techniques should make the procedure safer and less expensive
The Power of Memes
Behaviors and ideas copied from person to person by imitation--memes--may have forced human genes to make us what we are today
NABADA: The Buried City
Excavations in northern Syria reveal the metropolis of Nabada, founded 4,500 years ago. Its elaborate administration and culture rivaled those of the fabled cities of southern Mesopotamia
Better Decisions through Science
Math-based aids for making decisions in medicine and industry could improve many diagnoses—often saving lives in the process