A novel arylpiperazine-containing imidazole 4-carboxamide derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same as an active ingredient for preventing or treating a depressive disorder are provided. The compositions comprises a C8-C20 fatty acid, one or more parabens or a combination of these. A decision whether to make a handover to the second network can then be made by comparing the updated operational parameters for the first network with the operational parameters for the second network. The apparatus moves the reference carrier from the reference carrier region to the carrier receiving region for processing by the apparatus.