  Our main aim in this work is to study the effects of meson-exchange currents
(MEC) over asymmetries and recoil polarization observables in A(e,e'p)B
reactions. This DWIA+MEC model takes care of relativistic degrees of freedom by
using semi-relativistic operators for the one-body current as well as for the
two-body MEC. These SR currents are obtained by a direct Pauli reduction of the
corresponding relativistic operators by an expansion in terms of missing
momentum over the nucleon mass, while the current dependence on the transferred
energy and momentum is treated exactly. Also some comparisons with experimental
data are made.
