A biodegradable and biocompatible nontoxic polymeric composition is provided which includes a base material such as a crystallizable polymer, copolymer, or terpolymer, and a copolymer or terpolymer additive. A breath actuated triggering mechanism includes a mouthpiece and a diaphragm. The set of user-selectable options includes dismissal of the graphical user interface, assistance in ordering consumables or services identified by the graphical user interface, deferment of action with respect to the consumables or services identified by the graphical user interface for a user-selectable interval and inhibiting further displaying of the graphical user interface. Potting compound is used to protect components of electrical circuits from vibration, moisture and static discharges. The cab support structures and frame attachment structures are angled so that the axes of the vibration-isolation members intersect at a vertical and center position within the cab. The system packages a canonicalized format of each identified date to support various types of queries such as, for example, specific date querying, hierarchical date querying, range date querying, proximity queries comprising a date and any keywords, and any combination of types of queries.