A method for providing location dependent information to a user for selective colleague assistance. In one embodiment, a standard conductive material such as carbon or titanium nitride is used to form the contact. The terminal also includes an electronic payment mechanism for creating an electronic financial instrument for paying for an item purchased via the network. Other embodiments are also described. Encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination is included. The method includes co- or separate administration of a source of nutrients, especially carbohydrates, and insulinotropic peptides and derivatives, analogs, fragments and the like.