An absorbent structure can include a matrix of fibers, wherein the matrix is reinforced with a reinforcing member, such as scrim. The armature ring is rotated with the second actuator to thereby axially shift the thrust body by the rotation of the armature ring. The enclosure case cover, the enclosure case body, the heat-dissipating plate, and the support members are constituted of aluminum or an aluminum alloy and are disposed in contact with the inner hard-disk-drive case in such a way as to dissipate heat. Information is ciphered and the transmitter signature tag is appended to the ciphered information. Certain implementations may include a relatively large number of such communication devices, and appropriate coordination and scheduling of such communications tofrom them is made using one or more variations of TDMA signaling, communication medium access operational modes, adaptation thereof, etc. This highly novel discovery is the basis of significant herbicide tolerant crop trait and selectable marker opportunities.