A communications network is described having a class-based queuing architecture. An example method includes determining results of a computer based search in response to a resource request; displaying the results via one or more cards, wherein each of the one or more cards includes information pertaining to a particular search result; and illustrating, in a card, at least a portion of the information via one or more graphics. The ultraviolet light has a wavelength within the range of about 295 nanometers to about 320 nanometers. In one diopter correction structure, a left objective lens is adjusted with respect to a right objective lens to correct a diopter difference between the two telescope optical systems on a manufacture process. At the same time, the gap between the other fixed contact pad and the other switching contact is increased, causing conducting liquid droplets to separate and break an electrical circuit. During in-situ vitrification, the electrode assembly may also be operated in the non-transferred mode, while being withdrawn from holes in the earth, to produce vitrified columns of soil.