Bell’s Palsy—Nerve Conduction and Recovery Time

Comparative study of sinoatrial conduction time and sinus node recovery time.

Atrial stimulation were performed in 5 normal patients (group A) and 4 patients with electrocardiographic evidence of sinoatrial disease (group B). The technique of premature atrial stimulation was used to calculate sinoatrial conduction time. Rapid atrial pacing was applied to measure maximum sinus node recovery time. In 4 cases both stimulation methods were repeated after intravenous administ...

Bells, Motels and Permutation Groups

This article is about the mathematics of ringing the changes. We describe the mathematics which arises from a real-world activity, that of ringing the changes on bells. We present Rankin’s solution of one of the famous old problems in the subject.

Groups and Bells

We describe the mathematics which arises from a real-world activity, that of ringing the changes on bells. We present Rankin's solution of one of the famous old problems in the subject, and some open questions.

Regional effects of verapamil on recovery of excitability and conduction time in experimental ischemia.

This study was designed to test the hypothesis that verapamil has an effect on ischemia-initiated arrhythmias related to its regional influences on recovery of excitability and conduction time. Using a coronary perfused preparation of cat left ventricle that allows simultaneous electrophysiologic monitoring of both endocardium and epicardium, we studied the effect of verapamil on ischemia-induc...

Foot and mouth alarm bells