Light weight fiber-reinforced polymeric structural building panels and panel assemblies, sized and configured for construction of non-portable wall structures permanently fixed to the ground, optionally tying overlying structure to an underlying footer through such panels and panel assemblies. For example, one embodiment includes a display comprising a plurality of the display elements each comprising a movable reflector, a first partial reflector, and a second partial reflector. 1 to 10 mm, and is wetted more readily by the hydrophobic substance immobilized in the pores than by the aqueous solution to be treated, and regenerating the product of step a), essentially without the granular or powdery material being freed from the hydrophobic substance, by removal of the hydrophobic constituents. The RTP data can include information necessary for the RTP audio processor to establish an audio stream with the one of the two endpoints that did not convey the RTP data to the RTP audio processor. In the above general formula, X and Y can be each independently C, N, S or O.