  Three different effects observed in experiments with rotating
nuclei--backbending, noncollective quadrupole transitions between different
levels of the same band, and transitions that occur, in rapidly rotating
nuclei, from large-$K$ isomeric states immediately to the levels of a
rotational band despite their strong forbiddenness in $K$--are explained in
terms of nonconservation of the quantum number $K$ in such nuclei.
