A medical device includes an elongated member and a reinforced retention structure. The advertiser’s cost is proportional to the number of advertiser-selected geographic limitations available to a user making search query of a class correlated with the advertiser participating in at least one of the alternate pages of the search engine. Analyte molecules are added to a solution of such objects, and the result is introduced into the flow imaging system which collects full SPR spectral data from individual objects. Other on-state resistance characteristics of the memory device, different from the first on-state resistance characteristic, may be provided by application of other voltages, different from the first voltage, to the gate of the transistor. These treatment strategies thereby improve the therapeutic efficacy of stimulation or and decrease risk of interference with normal brain, sensory, motor, and cognitive processes. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade.