Allen M. Sumner, M.D.

Frederick M. Allen, 1916

In Memoriam: M. Colin Jordan, MD

M. Colin Jordan, former Infectious Diseases Division Director and Professor of Medicine at both the University of Minnesota and the Oregon Health and Science University (OHSU), died April 8, 2015. Colin lived an exceptional life, touching patients and colleagues with his excellence and high expectations as a physician and scientist and his rare combination of warmth and nurturing with cutting, ...

Remembering Steven M. Podos, MD, 1937-2009.

During an ARVO meeting in the late 1960s, I attended a party in David Maurice’s room at the Sheraton Sandcastle. Other than David talking with his characteristic dry humor, I don’t remember who else was in the room, except this younglooking, smiling fellow dressed in a completely white suit and bow tie; even his shoes were white. Being invited to David’s private party was a big deal at that tim...

Eugene M. Farber, MD(1917-2000).

E ugene M. Farber, MD, for 36 years professor and chairman of the Department of Dermatology, Stanford University School of Medicine, Stanford, Calif, and president of the Psoriasis Research Institute of Palo Alto, Calif, died November 10, 2000, after a brief illness. Farber was 83 years old. He was a native of Buffalo, NY, receiving his bachelor of arts degree from Oberlin College, Oberlin, Ohi...

Extending the Gyárfás-Sumner conjecture

Say a set H of graphs is heroic if there exists k such that every graph containing no member of H as an induced subgraph has cochromatic number at most k. (The cochromatic number of G is the minimum number of stable sets and cliques with union V (G).) Assuming an old conjecture of Gyárfás and Sumner, we give a complete characterization of the finite heroic sets. This is a consequence of the fol...