Abstract: A method includes performing, by a processor of a database server: intercepting an operating system supervisor call involving a request for information associated with an information Management System (IMS) database from a secondary storage device, the IMS database being embodied in the secondary storage device; determining whether the information that was requested is stored in a cache memory embodied in a primary storage device; retrieving the information that was requested responsive to determining that the information that was requested is stored in the cache memory; executing the operating system supervisor call to perform a read of the secondary storage device to obtain the information that was requested responsive to determining that the information that was requested is not stored in the cache memory; and storing the information that was requested in the cache memory responsive to executing the operating system supervisor call to obtain the information that was requested.

Abstract: A method includes performing, by a processor of a database server: intercepting an operating system supervisor call involving a request for information associated with an information Management System (IMS) database from a secondary storage device, the IMS database being embodied in the secondary storage device; determining whether the information that was requested is stored in a cache memory embodied in a primary storage device; retrieving the information that was requested responsive to determining that the information that was requested is stored in the cache memory; executing the operating system supervisor call to perform a read of the secondary storage device to obtain the information that was requested responsive to determining that the information that was requested is not stored in the cache memory; and storing the information that was requested in the cache memory responsive to executing the operating system supervisor call to obtain the information that was requested.

Abstract: An inflatable device to be used in treatment of stenotic lesions includes external optical fibers with a segment capable of emitting substantially uniform radial energy. The design of the optical fibers ensures a high optical coupling factor and a high efficiency in delivering light-energy to the adjacent tissue volume. A light source is connected to the optical fibers during the inflation of the device. The parameters of the light source: wavelength, waveform and intensity and the design of the optical fibers ensure that the light-tissue interaction depth is within a thin layer of stenotic lesion without inducing irreversible damage to the vessel wall. During the inflation of the device, the external optical fibers pressure the same tissue volume that interacted with the radial emitted light-energy. The confined radial light energy and the mechanical effects induced by the optical fibers create an opto-mechanical effect that facilitates the dilatation of stenotic lesions and reduces the risk of restenosis.