Abstract: The most and least frequently accessed data records are contiguously stored on static media. Additionally, a buffer in random access memory holds copies of the most recently accessed records. Updated records are copied from the buffer, and contiguously stored in a separate file on static media. Non-accessed records are contiguously consolidated.

Abstract: The invention provides a method and system for treatment of body strictures to restore luminal diameter to within a normal diameter range, in which the stricture is dilated to stretch its lumen to a desired diameter, collagen is exuded near to existing tissue of the stricture so as to be absorbed by that tissue or adhere to that tissue, making a collagen-enhanced tissue structure, and energy is emitted to affect the collagen-enhanced tissue, such as by ablation or by hardening. Ablation and hardening may be repeated so as to create a set of layers of hardened collagen in the form of a supporting frame, preferably having a hollow cylindrical shape. Dilation of the stricture is achieved by expanding one or more balloons, or by the pressure of exuded collagen, until the stricture is larger than a normal diameter range. When energy is emitted into the collagen, the stricture contracts back to the normal diameter range, either by ablation of excess tissue or by plating of the stricture wall.

Abstract: A graphical user interface provides a scalable information structure. Interactive categories are displayed as expansive locations on a display as part of a desktop. In a first preferred embodiment of the invention, each category in a tier of an information structure occupies a dedicated expansive location in a list displayed within a defined region on the display. A location occupied by a selected category is expanded or compressed to display the next tier in the information hierarchy as a list, or as a cluster. Remaining locations are resized to accommodate newly-displayed contents within the defined region. The list is directly scrolled by selecting and moving locations with a pointing device. In a second, equally preferred embodiment of the invention, expansive locations are displayed as a cluster arrangement. A selected cluster is highlighted and expanded to display the next tier in the information hierarchy as a list, or as a cluster. Any previously-selected cluster is deselected and contracted.