  Available data on the polarization of the secondary proton (as a function of
its momentum $K$) in the inelastic ({\it p, p$'$}) reactions with the $^{9}$Be,
$^{12}$C, and $^{40}$Ca nuclei and differential cross section data (the
momentum distributions) for the reactions at the initial proton energy 1 GeV
and scattering angles $\Theta$=21$^\circ$ and $\Theta$=24.5$^\circ$ were
analysed in a range of the high momenta $K$ close to the momentum corresponding
to the proton elastic scattering off the investigated nucleus. A structure in
the polarization and momentum distribution data at the high momenum $K$,
related probably to quasi-elastic scattering off a $^{8}$Be-like nucleon
cluster inside the nuclei, was observed.
