SIGNATURE EFFECTS IN SOME N=90 ODD-Z RARE-EARTH NUCLEI

Using axially symmetric deformed configuration mixing and angular mome ntum projection techniques, we have studied the signature effects in t he pih11/2 bands of 147La, 149Pr, and Pm-151 nuclei. Effects of rotati on alignment on the signature splitting in energy and signature invers ion in the B(E2,I-->I - 1) values are discussed. We find that transiti on from a strongly rotation-aligned limit to a weakly rotation-aligned (or more regular rotational behavior) regime or vice versa leads to s ignature inversion of the B (E2) values.