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A model of anisotropic plasma fluids is developed to examine the origin of the spectra of random, electron-density variations inferred by Armstrong, Cordes, and Rickett from measurements of pulsar radio signals. These electron variations are interpreted as density components of an anisotropic stationary mode of nonlinear magnetogasdynamics-tangetial pressure balances. It is demonstrated that turbulent flows, generated by the disruption of H I clouds in O star H II regions, reproduce well the mean electron spectrum inferred by Armstrong et al., if the relative rms density variation, >(n-n0)2<1/2/n0 is 0.125, where n0 is the mean density.
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J. C. Higdon (1986) studied this question.
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