Since recording potentials directly from the sinoatrial node (SAN) is not yet possible, the electrophysiologic evaluation of this structure in intact human subjects must be accomplished with indirect technics. Two technics have been used to study SAN function in man: premature atrial stimulation (PAS) and rapid atrial pacing. Recent discussions of data using these technics have emphasized their...

Cryptology includes cryptography and cryptanalysis technics. Cryptography is managed by Kerckhoffs principles, so any information related to a cryptosystem can be public except the keys. The cryptanalysis is the sum of a lot of very advanced technics in order to find these keys. The controversy about the Data Encryption Standard security has highly contributed to the development of new cryptana...

Dirty data is a serious problem for businesses, leading to incorrect decision making, inefficient daily operations, and ultimately wasting both time and money. A variety of integrity constraints like Conditional Functional Dependencies (CFD) have been studied for data cleaning. Data repairing methods based on these constraints are strong to detect inconsistencies but are limited on how to corre...

Abstract This article brings together two apparently unnatural bedfellows: Gilbert Simondon, France’s major (re)thinker of technology and ontology, André Breton. The thinkers have never been brought together, yet in his ‘Note complémentaire sur les conséquences de la notion d’individuation’ — a coda to doctoral thesis ‘L’Individuation à lumière des notions forme et d’information’ (1958) Simondo...

T HE accumulation of accurate iniformiation as regards operative mortality and results of surgery is basic to the advancement of the surgical management of any disease. It has been amply demonstrated by Lewis and Tauflc,1 Swan,2 Gross and associates,3 Bailey and associates,4 Bj6rk and Crafoord,5 Gibbon,6 Shumacker7 and ourselves8 that a number of technics of closure of atrial septal defects can...

LYMPHATIC DRAINAGE of the heart has received little attention in the past but its potential importance has been recognized recently by several investigators.1-5 Review of studies of cardiac lymphatics4' 6 shows that many details of the anatomy of the system are still unknown, largely because of limitations of the technics of investigation. The small size and delicate structure of peripheral lym...

This paper presents the axiomatization | without the rule of irreeex-ivity | of the modal logic of inequality as well as a method for proving its completeness. This method uses the technics of the frame of subordi-nation.