An epidermal positioning mechanism for use with an application to a predetermined epidermal surface. According to embodiments of the disclosed technique, an RCU callback is enqueued so that it can be processed by the kernel module’s callback processing code following completion of a grace period in which each of the one or more processors has passed through a quiescent state. The liquid phenothiazine discharged through the boreholes enters a cooling medium having a temperature of between \u2212196 and +120\xb0 C. The decoding algorithms of receiver unit can be updated to be compatible with transmitted signals in several different embodiments.