A system comprises a respiratory delivery arrangement adapted to cover at least one respiratory orifice of a patient. A network delay aware Virtual Machine may be configured to adapt a Virtual Machine Monitor to delay switching back to the network delay aware VM by a delay amount determined using a measured network delay. The regulatory information may be formatted as a P2P action frame and may include regulatory domain information andor supported channel information such as operating class and channel number. Within a chamber, the first substrate surface is exposed to a PF3 comprising atmosphere under conditions effective to form a second substrate surface comprising at least one of Pt, Pd, Co and Au in at least one of elemental and alloy forms which has a second degree of roughness which is greater than the first degree of roughness. The housing includes means for connecting to the bG meter only when the means for storing data is retained by the housing.