Methods of controlling the operation of a device traveling in a body tube tree, including determining a time based on a signal from a timing device and performing an action based on the determined time, implemented with a control system located partially or fully on the lumen traveling device. Thin semiconducting films prepared according to the present invention generally exhibit improved conductivity, film morphology andor carrier mobility relative to an otherwise identical structure made by an identical process, but without the washing step. The registration structure is raised or raisable above the back sheet to allow an object for labeling to be positioned against the registration structure for proper alignment with a first portion of the label. 15 gcc and a basis weight between about 20 to 75 gsm.