A method for mapping, in three dimensions, the contents of a plume within an area is described. Either polymer can be employed as the inner layer or the outer layer component of the multilayer structure. The camming surface is engagable by a portion of a lead article on the wire to cam the anti-sweep apparatus between an enabling orientation and a blocking orientation. In one embodiment, the method may include displaying a video on demand program or a personal video recorder program in the gap between the displayed recommended programs. A center of gravity of the one part of heaters and a center of gravity of the other part of heaters are aligned with each other in a plane of the element substrate, and surfaces of the heaters are protected by an anti-cavitation film comprising metal. Embodiments include, detecting by an accelerated processing device a memory exception, and preempting a process from running on the accelerated processing device based upon the detected exception.