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Recent simulations of anti-hydrogen production rely on the rate that anti-protons are slowed in positron plasmas. These plasmas are typically cold and in strong magnetic fields. This paper describes Classical Trajectory Monte Carlo calculations of the momentum transfer cross sections for positron collisions with anti-protons. We also give results for electron collisions with anti-protons. For the typical temperatures and magnetic fields in the anti-hydrogen experiments, the dominant slowing mechanism is the close, non-perturbative collisions; all previous calculations of the slowing rate are for situations where the perturbative collisions dominate. These cross sections are converted into a slowing rate as a function of magnetic field and temperature. For the parameter range of current interest, we find this to be an extraordinarily simple function.

The current research examines the judgment processes of third‐party evaluators of sexual harassment situations. Four situational variables were hypothesized to influence ratings of situation appropriateness and judgments of sexual harassment. The evaluator's gender and personality also were hypothesized to influence both ratings. Participants were 73 male and 51 female undergraduate students. Results indicated that behavior severity and victim response significantly influenced ratings. The frequency of the behavior influenced appropriateness ratings, but interacted with behavior severity for harassment judgments. The effects of the gender of the evaluator were mediated by the evaluator's level of tolerance for harassment. The effects of the power relationship and rater personality were not significant.

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