Learn More
The innate difficulty of constructing multi-agent systems has motivated agent developers to move away from developing point solutions to point problems in favour of developing methodolo-gies and toolkits for building distributed multi-agent systems. This philosophy led to the development of the ZEUS Agent Building Toolkit, which facilitates the rapid(More)
The multi-agent systems approach of knowledge level cooperation between autonomous agents promises significant benefits to distributed systems engineering, such as enhanced interoperability, scalability and re-configurability. However, thus far, because of the innate difficulty of constructing multi-agent systems, this promise has been largely unrealised.(More)
as well as other sources of funds and support. The authors wish to thank several individuals who were involved in the development of this manuscript. Mr. Richard Novitzki took part in all of the field trips and many of the discussions. His expertise in hydrology of wetlands, experience with EMAP-wetland projects, and clarity of thinking were important to(More)
The clinical and echocardiographic variables related to left atrial spontaneous echo contrast were prospectively evaluated in a consecutive series of 400 patients undergoing transesophageal echocardiography with a 5-MHz single plane transducer. Left atrial spontaneous echo contrast was found in 75 patients (19%) and was significantly associated with atrial(More)
OBJECTIVES To evaluate the applicability of changes in spectra of systemic arterial pressure and heart rate signals in the prediction of patient outcome in an adult intensive care unit (ICU). To compare the prognostic predictability of this method with the Acute Physiology and Chronic Health Evaluation II (APACHE II) scoring system. DESIGN Prospective(More)
There is an emerging consensus on the need to develop methodologies and tool-kits for building distributed multi-agent systems. This paper presents ZEUS, an advanced development tool-kit for constructing collaborative agent applications. ZEUS is a culmination of a careful synthesis of established agent technologies with the addition of some new ones, to(More)
This study prospectively evaluated the role of transesophageal echocardiography (TEE) in screening for atrial thrombi before electrical cardioversion in 40 nonanticoagulated patients with nonvalvular atrial fibrillation (n = 33) or atrial flutter (n = 7). Transthoracic echocardiography did not detect atrial thrombus in any patient. TEE detected left atrial(More)
OBJECTIVES This study examined the relation between left atrial spontaneous echo contrast, hematologic variables and thrombo-embolism in patients with nonvalvular atrial fibrillation. BACKGROUND Left atrial spontaneous echo contrast is associated with left atrial stasis and thromboembolism in patients with nonvalvular atrial fibrillation. However, its(More)
Visualising the behaviour of systems with distributed data, control and process is a notoriously difficult task. Each component in the distributed system has only a local view of the whole setup , and the onus is on the user to integrate, into a coherent whole, the large amounts of limited information they provide. In this paper, we describe an architecture(More)
We compared the cardiovascular autonomic regulatory mechanisms between patients with brain death or under a persistent vegetative state and healthy volunteers, based on auto- and cross-spectral analysis of systolic blood pressure (SBP) and interpulse interval (PPI) signals. Brain-dead patients exhibited a significant reduction in the absolute and relative(More)