Volume 96, Issue 1
13 January 2006
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On the Cover
Reaction-diffusion equations are used to predict twisted spiral waves—the inner and outer parts are wound in opposite directions. The spiral retains its shape as it rotates.
From the article:
Front Reversals, Wave Traps, and Twisted Spirals in Periodically Forced Oscillatory Media
Oliver Rudzick and Alexander S. Mikhailov
Phys. Rev. Lett. 96, 018302 (2006)