F. Graham Sommer, MD

Gerald Sommer

In memoriam: Stephen F. Lowry, MD, MBA.

In vitro activation of mouse eggs By C . F . GRAHAM

Unfertilized mouse eggs were activated in vitro with hyaluronidase. Subsequently they were exposed to culture medium at different osmolarities. In full strength White's culture medium they tended to form one pronucleus and a second polar body. The majority of these eggs were haploid. In 4/5 and 3/5 dilutions of this medium, the second polar body formation was suppressed and eggs tended to form ...

Sommer-edition 2004

NON-ARISTOTELIAN LOGICS One of the deep-seated cravings of the human mind seems to be a desire for something permanent, for something eternally the same, changeless and absolute. Of such an object of reverence it can then be exclaimed, "Oh Thou Who Changest Not !" This worship of the changeless is by no means confined to religion, for, in the field of philosophy, as is known, no less a person t...

Donald F. Steiner MD, 1930-2014: discoverer of proinsulin.

Donald F. Steiner, the A. N. Pritzker Distinguished Service Professor Emeritus in the Departments of Medicine and Biochemistry and Molecular Biology at the University of Chicago, died at his home on Tuesday, November 11, 2014. He was 84 years old and had been a member of the faculty since 1960. Don was elected to the National Academy of Sciences in 1973. He revolutionized our understanding of t...