Complex sentence: Clifford A. Pickover is an American author, editor, and columnist in the fields of science, mathematics, and science fiction, and Research Staff Member at the IBM T. J. Watson Research Center.
Split into simpler sentences: Clifford A. Pickover is an author, editor, and columnist in the fields of science, mathematics, and science fiction. He is currently a Research Staff Member at the IBM T. J. Watson Research Center.