This article delineates an agent system whose structure and control are based on spatial principles. The agent system is used to adapt a retrieved case to a problem domain. This work is part of the FABEL i project which aims to integrate model-based and case-based approaches. An interactive human-agent problem solving scenario is assumed where the human observer activates various agent systems,...

1 Mr. Augustine, members of the Committee, I would like to thank you for inviting me to testify here today on the future of the U.S. human spaceflight program. Since many of you may be unfamiliar with me, I hope you will forgive me if I take a few seconds to establish my credentials. I am an engineer with a masters degree in aeronautics and astronautics, a doctorate in nuclear engineering, and ...

The energetics and dynamics of electromigration of the oxygen vacancy is investigated with first-principles calculations and kinetic Monte Carlo methods. To simulate the charged oxygen vacancy under external fields within the first-principles approach, we introduce a slab model with electron-accepting dopants in the surface. The analysis of the density of states confirms that the oxygen vacanci...

Physiological principles that directly apply to physical diagnosis provide opportune occasions to bring basic science to the bedside. In this article, we describe the effect of cardiac maneuvers on systolic murmurs and how physiological principles apply to the explanation of the changes noted at the bedside. We discuss the effect of Valsalva, squatting, and hand grip maneuvers on different phys...