Delta Psi Sig Les Coles, MD, Ph.D.,’62, has been selected as Significant Sig. Dr. Coles, who goes by L. Stephen Coles in his post RPI professional life, is a Faculty member of the Molecular Biology Institute at the UCLA Department of Chemistry and Biochemistry. Brother Coles is also the co-founder and the Executive Director of the Gerontology Research Group and is a spokesperson on aging and on superentenarians. Dr. Coles is also a Visiting Scholar in the computer science department at the University of California, Los Angeles, United States, and an Assistant Researcher in the Department of Surgery, at the UCLA David Geffen School of Medicine. Brother Les was recently featured in Wired Magazine, November 2012, “Long Life, Dissected” a feature on his dedicated decade of performing autopsies on people aged 110 or older to determine why they live so long.