The basic partial differential equation PDE models for supply chain networks with re-entrant nodes and their macroscopic are proposed. However, through numerical examples, the basic continuummodels do not performwell for multiple re-entrant systems. Then, a new state equation considering the re-entrant degree of the products is introduced to improve the effectiveness of the basic continuum mode...

Dogs 3-7 days following ligation of the anterior descending coronary artery representing a remarkably stable model for re-entrant ventricular arrhythmias (RVA) and allowed detailed electrophysiologic studies of the re-entrant mechanism. In these dogs, we could regularly illustrate the presence of continuous electrical activity originating from the infarction zone (IZ) and bridging the diastolic...

A re-entrant gas-liquid spinodal was proposed as a possible explanation of the apparent divergence of the compressibility and specific heat off supercooling water. Such a counter-intuitive possibility, e.g., a liquid that becomes unstable to gas-like fluctuations on cooling at positive pressure, has never been observed, neither in real substances nor in off-lattice simulations. More recently, s...

Retrograde atrial preexcitation following premature ventricular beats during reciprocating tachycardia in the Wolff-Parkinson-White syndrome. Eur J Cardiol 3: 283, 1975 28. Rosen KM, Denes P, Wu D, Dhingra RC: Electrophysiological diagnosis and manifestation of dual A-V nodal pathways. In Conduction System of the Heart, edited by Wellens HJJ, Lie H, Janse MJ. The Netherlands, H.E. Stenfert Kroe...

DNA is acquiring a primary role in material development, self-assembling by design into complex supramolecular aggregates, the building block of a new-materials world. Using DNA nanoconstructs to translate sophisticated theoretical intuitions into experimental realizations by closely matching idealized models of colloidal particles is a much less explored avenue. Here we experimentally show tha...

Re-entrant manufacturing systems differ from traditional manufacturing systems in the sense that a job may visit a service station more than once, at various stages of the product development cycle. Several parts at different stages of processing may be in contention for service at the same machine, which gives rise to the need to solve scheduling problems. This document surveys some of the fac...

Re-entrant beats with regular extrasystolic grouping were seen in 44- of dogs 3--7 days following ligation of the anterior descending coronary artery. Utilizing direct recording of the re-entrant pathway (RP) from the epicardial surface of the infarction zone, we found extrasystolic grouping to be based on the infarction tachycardia-dependent conduction disorders in a potentially RP. Trigeminy ...

Programmed electrical stimulation of the heart uncovered unusual findings in four patients suffering from supraventricular tachycardias. They included 1) two supraventricular tachycardias of different location and frequency in the same patient, 2) increase in rate of a re-entrant atrioventricular (A-V) nodal tachycardia followed by the development of 2-to-1 A-V block, 3) a "gap" in A-V conducti...

This paper reviews the anatomical substrates responsible for the induction and maintenance of supraventricular tachycardia and discusses the ECG findings associated with these tachycardias. The normal anatomy of the supraventricular conducting system, particularly within the atria, is complex with conduction proceeding along preferential pathway, which are in turn determined in part by the anis...