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We present a case study of validating an astrophysical simulation code. Our study focuses on validating FLASH, a parallel, adaptive-mesh hydrodynamics code for studying the compressible, reactive flows found in many astrophysical environments. We describe the astrophysics problems of interest and the challenges associated with simulating these problems. We(More)
BACKGROUND The purpose of this study was to evaluate retrospectively the value of leukocyte-labeled scintigraphy, ultrasonography, and contrast radiography compared with endoscopy in children suspected of having inflammatory bowel disease (IBD). METHODS Twenty-eight children (17 boys; mean age, 10.2 years) with IBD based on standard colonoscopic,(More)
The intent of the recent H.264/AVC standard is to provide high quality video at low bit-rates and work effectively on a wide variety of networks and systems. A promising application is video broadcasting on mobile terminals butin practice, increased processing power and power management are required for embedded systems. In this paper, we consider an(More)
A novel scheme for deep trench isolation is presented, which uses an airgap as insulator. When incorporated in our 0.13mum SiGe:C BiCMOS technology, the peripheral substrate parasitics decrease with an order of magnitude to a record value of 0.02fF/mum, which significantly improves the device RF performance
The development of potent and selective adenosine receptor ligands as potential drugs is an active area of research. Xanthines are one of the most important classes of adenosine receptor antagonists and have been widely developed in terms of affinity and selectivity for adenosine receptors. We recently developed new original pathways for the synthesis of(More)
Opiates such as morphine have a direct spinal effect, acting at special receptor sites in the dorsal horn. When morphine is administered epidurally, it diffuses to the cord substance, producing analgesia of improved quality after a dose of 2 to 4 mg. A protracted analgesia is produced, compared with parenteral narcotics, with a median duration of effect of(More)
The electrophysiological properties of bepridil suggest a possible ventricular antiarrhythmic effect. This prospective multicentre trial was undertaken to study the antiarrhythmic efficacy of oral bepridil on ventricular arrhythmias in patients with stable coronary insufficiency and more than 1 000 ventricular extrasystoles per 24 hours or ventricular(More)
Para-sternal echocardiography proved impossible in a case of a large pneumopericardium caused by an oesophageo-pericardial fistula. However, M mode and sector scanning showed separation of the pericardium, giving non-homogeneous echoes, and shaded echographic areas caused by the interference of air which masked all recognisable structures. This occurred in(More)