According to the present invention, a buyer may submit a listing containing a description of an item desired to be purchased, such as an airline ticket, to an operator of an automated selling system. In another embodiment of the present invention, a nutraceutical formula comprising a combination of two or more substances from the group: berry extract, chromium, zinc, fr-\u03b1\u03c0s-resveratrol, l-arginine, chlorophyll, vitamin C and aloe vera combined synergistically to enhance wound healing in mammals suffering from diabetes. The rake circuit performs rake combining of the signals despread by despreading circuits. The positioning step includes positioning a path of the continuous loop device so that a tight side of the device is located in the harvesting direction from both the first axis and the second axis. Therefore, light output per unit area of the light emitting device is enhanced as compared with a conventional light emitting device, and thus, a chip area of the light emitting device needed to obtain the same light output as the conventional light emitting device can be reduced.