A method of arranging containers, such as bottles or cans, for forming groups of containers to be packaged as a group in a container filling plant, and apparatus therefor. The thermoelectric conversion material includes an oxide represented by formula : M1Oy, where M1 is at least one selected from the group consisting of V, Nb and Ta, and 1. Also included are methods of treating a mammal which include the administration of said compounds. The built-in antenna configuration can indeed make an electronic communication product reach the requirement of a miniature, meet the appeals of easily stowing and conveniently carrying, reduce the manufacturing cost thereof and thus promote the product competition and the added value thereof. A spring urges the closure such that the shaft may selectively extend out of the opening. Also integrated in the window frame are light emitting diodes that are activated during absence of daylight and powered from the solar electricity stored in the batteries.