Complex sentence: Norair Martirosovich Sisakian (Sissakian) (1907-1966) was a Soviet Armenian biochemist, academic, one of the founders of space biology, an outstanding organizer of science, a member of the Pugwash movement of scientists for peace.
Split into simpler sentences: Norair Martirosovich Sisakian (Sissakian) (1907-1966) was a Soviet Armenian biochemist, academic, one of the founders of space biology, an outstanding organizer of science. He was a member of the Pugwash movement of scientists for peace.