Complex sentence: R. Stephen Berry is, as of 2004, the James Franck Distinguished Service Professor Emeritus at The University of Chicago and Special Advisor to the Director for National Security, at Argonne National Laboratory.
Split into simpler sentences: R. Stephen Berry is now the James Franck Distinguished Service Professor Emeritus at The University of Chicago. He is now Special Advisor to the Director for National Security, at Argonne National Laboratory.