A surgical stapling assembly is configured to be used to form a tissue seal having an arcuate portion. The invention includes one or more optical contaminant detectors, capable of detecting chemical and biological agents. The mounting further having means to determine movement of the damping means at each moving component as a measure of intended movement of the mounting, means to determine actual movement of the mounting and means responsive to any difference detected between the intended and actual movements to apply a corrective movement to the optical apparatus. Moreover, the computer-implemented method includes transmitting the information request from the first server to a remote interface. A corresponding method for determining a monetary value of the patent document is also described. In particular, the invention relates to a method and apparatus for enhancing a header field, such as the subject field, of a notification such as an email to provide for animations and the like to placed in the field.