Disclosed herein are methods of treating a patient, comprising providing a compressible attenuation device that is moveable from a first, introduction configuration to a second, implanted configuration. Specifically, the present invention relates to a rubber composition comprises a rubber component containing diene rubber and fluorinated graphite and a pneumatic tire using the rubber composition. The cap further includes inner and outer surface which include one or more electrical ports disposed thereon. The cam surface is cold worked in a manner that locally increases the density at the surface to develop a highly densified layer of essentially fully densified material and with a final surface finish that, after heat treatment, is ready to use in a one-way clutch application without further working. In some embodiments, the thermoelectric material comprises a topological thermoelectric material.