The present invention relates to a novel class of compounds which are IMPDH inhibitors. A foamed glass article is provided, which can come into contact with a viscous fluid, such as, for example oil or another petroleum based viscous product. In one embodiment, the mobile communication network is used in conjunction with orthogonal frequency division multiple access techniques. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X13D102 through backcross conversion andor transformation, and to the maize seed, plant and plant part produced thereby. The ratio between the length of the plurality of permanent magnets and the length of the plurality of pole pieces is tailored to achieve a constant force versus stroke characteristic, when sinusoidal commutation is used.