Division of Cardiovascular and Thoracic Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Cardiothoracic and Vascular Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA Correspondence to: Harold M. Burkhart, MD. Professor and Chief, Division of Cardiovascular and Thoracic Surgery, University of Oklahoma Health Sciences Center, P.O. Box 26901, WP...

Cross-impact analysis is only one of the interesting paths being pursued in the exploration of the frontiers of Delphi. In this chapter we consider other significant prospects uncovered in recent research. The problem of "reduction" occurs again and again in Delphi as well as other analysis efforts. How similar are the goals, programs, and objectives? Do these items overlap? Dalkey in his artic...

This valediction to the late Sir Harold Ridley commemorates the 50th year of his first publication in the St Thomas’s Hospital Report, describing his pioneer undertaking to research, design, and implant an intraocular lens to correct aphakia. Dissatisfied with the poor acuity and loss of binocular single vision following unilateral cataract extraction and the poor outcome, particularly in child...