A method and apparatus is disclosed for making predictions about entities represented in documents and for information analysis of text documents or the like, from a large number of such documents. The electronic control system controls a gain of the amplifier in such a manner that a gain for a detection signal of an acoustic wave generated at a first location in the test object becomes larger as compared with a gain for a detection signal of an acoustic wave generated at a second location which exists nearer to the light irradiation region than the first location does. The neural network then be utilized to directly map measured changes in skull distance over time to changes in intracranial pressure over a volume change, the inverse of compliance. The fuser belts comprise a heat resistant resin substrate carrying thereon a plurality of layers coating the outer surface of said belt, wherein at least one of said layers does not contain electrically conductive materials and wherein the belt exhibits electrical breakdown at about 250 volts or less. The bearing assembly is adapted to permit angular adjustment of the cylinder relative to the longitudinal axis of the support shaft.