### Allyn Jackson

The Notices talks to the distinguished Japanese mathematician about his life and work.

(pp. 1010)

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### Mason A. Porter and Predrag Cvitanovic

The motion of bodies in space--such as comets, asteroids, and spacecraft--follow chaotic trajectories, as do excited electrons. The authors discuss how the mathematical connections between these different scale, but otherwise related, nonlinear dynamical systems are helping astrophysics and chemistry.

(pp. 1020)

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