The invention relates to a method of producing soluble polymer granules which are suitable for use in washing andor cleaning surfactants. In certain aspects, a drug delivery device includes a pump extending from a surface of the drug delivery device and a door that includes a spring-loaded member exposed along its inner surface. The water swellable yarn is selected according to the following equation:VwVTF=kVt+Rin which Vw is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant\u2267180; R is a constant\u22671. Further, the gaming apparatus monitors a plurality of sets of monitored actions by a player, and determine a plurality of potential game parameters, each game parameter based on one of the plurality of sets of monitored actions, where the controller operates the gaming apparatus and displays images on the display apparatus responsive to the determined plurality of potential game parameters. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed. In some embodiments, the at least one rare earth oxide comprises at least one of La2O3, Y2O3, Sc2O3, and Nd2O3.