A pump assembly includes a cylinder, a piston, a rod, upper and lower end caps, all sharing a common central axis. The valve assembly may include a solenoid having a solenoid coil and an armature movable under influence of the solenoid coil. The IM FM is further configured to identify a computer that hosts the IM client as a source of malware based on messages sent by the IM client to at least one of the fictitious buddies and to determine that the host computer of the IM client is a source of malware if a content of the messages sent to the at least one of the fictitious buddies contains malware. In the merge transform process, first and second transform halves are merged using combinational processing into a merged transformed data whole in the transform domain. Alternatively, a functional thin-film element comprise: a substrate ; an anode or cathode formed on the substrate ; a luminescent layer formed on the anode or cathode ; a cathode or anode formed on the luminescent layer ; and a doped layer formed by doping anions into between the luminescent layer and anode.