When an optical waveguide is formed by focused femtosecond laser pulses in a pure silica glass to induce a refractive index increase region, a pulse width of femtosecond laser pulses are changed, a peak power of femtosecond laser pulses at the focal point is changed, or both the pulse width and the peak power are changed simultaneously. In one embodiment, the coin receiving mechanism comprises a faceplate having at least one coin slot formed therein, a coin wheel, and a backplate dimensioned to cover at least a portion of the coin wheel and the faceplate. The display instruction data acquisition unit acquires display instruction data. One such preferred alkylphosphocholine is perifosine. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims. The carrier body includes a rib slidably received in a channel of a vehicle hitch bracket.