The present invention relates to a case having a shock absorbing structure for an electronic device which includes a protective shell, a side enclosure frame, and a shock absorbing block. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. A polysilicon layer and a nitride layer are deposited. Electroactive polymer transducers offer customizable shapes and deflections. Methods of inhibiting phosphatidylinositol 3-kinase delta isoform activity, and methods of treating diseases, such as disorders of immunity and inflammation in which P13K\u03b4 plays a role in leukocyte function, using the compounds also are disclosed. At least one central control unit is provided.