A system for sorting search results according to a buyer profile during the matching phase of an electronic commerce transaction includes a database containing a buyer profile associated with a buyer, the buyer profile comprising a record of the number of times each of multiple sort criteria has appeared in at least some previous events involving the buyer. The use of an ink composition comprising a colorant, water, a water-soluble organic solvent, and a fine particle of a polymer, the polymer constituting the fine particle having a film-forming property and, at the same time, an ultraviolet absorbing capacity andor a light stabilizing capability, can realize a lightfast printed image. , displaying the time can incorporate an accelerometer to provide various features and enhancements. Alternatively, a phase modulator may be disposed between each source of modulated optical signals and the multiplexer so as to separately modulate the phase of all the optical signals that are subsequently transmitted through the long fiber waveguide. The temperature of the heated object is selected to be above the softening temperature of the thermoplastic foam, but below the melting temperature of the foam. Additionally, the monochrome and color images may be produced simultaneously and \u2018fused\u2019 algorithmically, yielding an improvement in sensitivity and color resolution compared with a conventional color camera.