Parity nonconservation in /sup 18/F, /sup 19/F, and /sup 21/Ne

Parity nonconservation has been studied in /sup 18/F, /sup 19/F, and /sup 21/Ne for the Weinberg-Salam model. After careful treatment of nuclear structure aspects, values are predicted for the ..gamma..-ray asymmetry and circular polarizations in good agreement with experiment provided one employs meson-nucleon doupling constants somewhat weaker than the ''best values'' recently suggested by Desplanques, Donoghue, and Holstein.