This invention discloses a rubbery polymer which is comprised of repeat units that are derived from at least one conjugated diolefin monomer, and at least one functionalized monomer having of the structural formula: . Each controller is capable of providing access to storage areas, such as Logical Unit Numbers. The second code, when executed by the second computing device, causes the second computing device to automatically retrieve the second network resource identified by the second universal resource locator, and automatically invoke execution of second content player code that configures the second computing device to present the content information. Pairs of magnets 13 are arranged such that opposite magnetic poles oppose each other across the two rotating plates 7, 8, and a magnetic space is formed between the two magnetic plates 7, 8. Speculatively added keys are searchable in the lookup table for subsequent lookup requests to maintain coherency of the lookup table without creating duplicate key entries, comparing missed keys with each other or stalling the lookup engine to insert missed keys. The device also allows for radiologic imaging and can be quickly undone in an emergency for rapid access.