EDITORIAL: OLD OR NEW?

Celebrating the new and old: editorial.

New editor-in-chief P. Scott Carney makes some opening remarks and comments on special OSA Centennial activities this year at JOSA A.

I-23: Freezing Oocytes: New or Old Ethical Issues?

Background: This paper considers whether the development of oocyte freezing raises any new or distinctive ethical issues. It will examine the ethical issues raised by this technique: the ’social’ use of egg freezing and how that might be defined; the use of egg freezing for cancer patients; and limitations and benefits of the technique. Materials and Methods: A consideration of the literature a...

Editorial: Going beyond "Same Old, Same Old"

Old dogs: new tricks, old tricks, or no tricks.

tively referred to as “old dogs.” In some instances, the designation may be a term of endearment: in others, a term of derision. Virtually every chairperson must face the dilemma of dealing with these senior staff members. His or her decision will be based primarily on how productive the senior radiologist is. I have had the unique opportunity to practice radiology over the past 27 years in bot...

Theoretical Omniscience: Old Evidence or New Theory

I will show that, in the Problem of Old Evidence, unless a rational agent has a property I will call theoretical omniscience (a stronger version of logical omniscience), a problem with non-commutativity of the learning theories follows. Therefore, scientists, when trying to behave as close to rationality as possible, should behave in a way close to the counterfactual strategy. The concept of th...