Historical Review The use of isotopes in clinical cardiology was introduced by Blumgart, Yens, and Weiss, who used radium C and a cloud chamber to estimate the linear velocity of blood flow in an extensive series of studies starting in 1927.1, 2 Undoubtedly the major stimulus to the adoption of tracer technics came from the introduction of man-made radioisotopes after World War II. During the i...

‘]TI-IE USE of the Natelsoit microgasometer (1-3), has now become firmly established in many routine clinical laboratories. As with most clinical technics, it is amenable to modification resulting in greater simplification, ease of operation, and facility of analysis. It must be stated parenthetically, however, that this does not diminish the accuracy of the original method (1). This paper desc...

ABIOUS TECHNICS HAVE BEEN EMPLOYED in observing the end points in performing prothrombin determinations. Some of these entail the use of wire loops (1), direct visual observation of the clot (2), and use of densitometers (3). In our laboratories we have adopted the method of Quick (2). We have found that with the aid of an improvised viewer, observations of any physical clot can be studied and ...

This article describes a visualization tool that helps application developers in understanding/debugging the execution of event-based applications. Vizar allows applications to record and then replay executions of event-based systems. It is a general purpose visualization service. It is not intended or linked in any way to any speciic system { eventhough it was rst targeted for active databases...

A total of 150 children from two pediatric practices with clinical and bacteriologic evidence of acute group A beta-hemolytic streptococcal (GABHS) pharyngitis randomly received cefadroxil monohydrate (75 children) or phenoxymethyl penicillin (75 children). Cefadroxil was given once daily, while penicillin was given three times daily. The treatment groups were similar in age, sex, race, illness...

Depletion of the periciliary liquid in "Cystic Fibrosis" airway disease results in reduced mucociliary transport, persistent mucus hypersecretion and consequently increased height of the luminal mucus layer, so hypoxic gradients in the mucus plugs are developed. Because of anaerobic lung zones, it is highly probable that anaerobic bacteria not detected by routine bacteriologic culture methods a...

We propose a visualization tool to help application developers in understand-ing/debugging the execution of event-based applications. Vizar allows applications to record and then replay executions of event-based systems. It is a general purpose visualization service. It is not intended or linked in any way to any speciic system { eventhough it was rst targeted for active databases. Also we inve...