  Based on recent works [1,2], we present the results of calculations for
several physical quantities (meson masses, the S parameter, etc.) in a
vectorial gauge theory, as a function of the number of fermions, N_f. Solutions
of the Schwinger-Dyson and the Bethe-Salpeter equations with the improved
ladder approximation are used for the calculations. We focus on how the values
of physical quantities change as one moves from the QCD-like (non-walking) to
walking regimes.
