A method for managing commerce contexts, between a direct commerce context and a temporary commerce context in a client session. The method includes forming an electron injection layer by vacuum co-depositing an organic semiconductor material having an electron mobility of about 1\xd710\u22126 cm2V\xb7s or more in an electric field of about 1\xd7106 Vm and a metal azide. The arm of the lens holder is configured to enter and retreat from the notch of the drive ring. The payment system acquires the transaction information of the transaction, reduces the transaction value from a first value included in the user account of the second party and adds the transaction value to a second value included in the user account of the first party. Each independent memory unit ably performs atomic read-alter-writes to enable software mutual exclusion operations. During the recoil event, the user may apply negative resistance to the translating firing unit which may be varied by the user on-the-fly to proportionally change the firing tempo.