sentences:  Maiani also took an interest in the direction of particle physics research start on CERN's Scientific Policy Committee from 1984 to 1991.Then, in 1993, he became president of Italy's Istituto Nazionale di Fisica Nucleare (INFN).From 1993 to 1996 Maiani served as a scientific delegate in CERN council and then as that council's president in 1997.