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- THE WEEK, Page 22HEALTH & SCIENCECan Chaos Save Lives?
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- An abstract theory could have some very practical consequences
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- According to the emerging science of chaos theory, many
- natural systems that appear utterly random -- tumbling
- waterfalls, roiling weather patterns, clusters of earthquakes --
- are really governed by underlying mathematical patterns. Now an
- experiment reported in Science has shown that understanding chaos
- could one day save lives.
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- The problem in question is cardiac arrhythmia, an
- irregular beating of the heart that can be deadly. Some cardiac
- arrhythmias bear the telltale signs of chaos. By delivering a
- series of precisely timed electrical pulses, four scientists at
- UCLA, the College of Wooster in Ohio and the Naval Surface
- Warfare Center in Maryland theorized that they might be able to
- tame unruly hearts.
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- It works in the test tube. The four got a piece of
- rabbit-heart tissue to beat chaotically and monitored the chaos
- with a computer. The computer, programmed with an understanding
- of chaotic math, then delivered anti-chaotic pulses. And the
- heart tissue's beats became nearly regular. Whether the drug
- would work the same way in living humans is another question,
- but the researchers predict that "smart pacemakers" might one
- day correct cardiac problems that are now largely intractable.
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