“…A summary of the high precision experimental data on the ratio of polarized, helicity, g 1 (x, Q 2 ), to unpolarized, F 1 (x, Q 2 ), proton structure function is shown in Fig. 23, the important point is that the effects of unnatural parity exchange vanish at small x, for pQCD arguments in favor of that see [273][274][275]. [272] are compared to the expectations from Eq.…”