An ambulatory infusion pump assembly and housing therefore has a cover and a base providing an enclosed cavity. Such proteins and molecules with increased half-lives have the advantage that smaller amounts and or less frequent dosing is required in the therapeutic, prophylactic or diagnostic use of such molecules. The synchronization information is encoded for an out of band transmission with respect to the broadcast of the audio and video streams. During the disulfide wash, a nucleophilic substitution reaction occurs between the disulfide compound and aryl halides endgroups of the polyarylene sulfide. A memory device, a method for writing data contained in payload data, a data packet, a method of writing data into a non-volatile memory and a memory tag may also be provided. The user utilizes this information to extract the encryption key set from the single key.