A method for measuring overlay in semiconductor wafers includes a calibration phase in which a series of calibration samples are analyzed. The chip provides for both bone conduction sensing and air conduction sensing. The hood protector region is constructed for extending across at least a portion of a vehicle hood for protecting the vehicle hood. Then, in order to condition the psychological state, physiological state, or behavior of the subject, a second set of images, based on the personalized image response profile is displayed. The end caps are also positioned in spaced relation to the body portion of the enclosed operating system. An indirectly addressed store then performs the \u201cscatter\u201d operation to store the results.