The shake-up of education currently proposed includes a 50-day period where schools are encouraged to draw up plans and contingencies in order to provide sufficient educational and academical development.
He came in during a shake-up and purge of the police in order to prepare the civic government forces for a showdown with the local communist movemement.
Therefore, there is a certain probability that, after the ionization of the first electron, a second electron is excited to states with higher energy (shake-up) or even ionized (shake-off).