Abstract: Surface imaging apparatuses, surface analysis apparatuses, methods based on detection of secondary electrons or secondary ions that include a spatially scanned and DC or pulsed primary excitation source resulting in secondary electrons or secondary ions which are detected and provide the modulated signal for imaging of the sample; and dual polarity flood beams to effect neutralization of surface charge and surface potential variation.

Abstract: Dental prosthesis support apparatus includes a plurality of dental implants having self-tapping threads on a lower portion thereof for seating in a jawbone and an upper portion for enabling engagement therewith. An armature is provided having sufficient flexibility to be aligned with the jawbone and engaged along the upper portions of each of the plurality of dental implants seated in the jawbone. The armature is formed from a material enabling subsequent rigidization. The method includes installing a plurality of dental implants into a jawbone in a spaced apart relationship and thereafter removably disposing an armature onto each of the plurality of dental implants and aligning the armature with the jawbone. The armature is removed and rigidized to the jawbone alignment and thereafter affixed onto each of the implants.

Abstract: A cursor control accessory is shown as an integral base overlying an array of keys including independently movable cursor control keys. It is provided with a protruding handle for use as a joystick. Outwardly protruding walls are adapted to be freely located between keys in the array and engage the upper surface of the keyboard housing. Recessed key engaging surfaces are provided above each cursor control key and are adapted to depress the selected cursor control key or keys in response to rocking movement of the base relative to the keyboarding housing. Base areas located above non-functional keys are recessed inwardly or relieved to prevent key operation during cursor usage.