According to one aspect of this disclosure, a communication terminal is provided comprising a subscriber identity module, wherein the subscriber identity module includes a plurality of subscriber identities assigned to identify the subscriber identity module. A control file is maintained with control structures that indicate available and allocated portions of usable space in the data file, along with quantities of available space in portions of the data file. The time stamps are generated using a system clock of the monitor node to reduce any discrepancies in timing. An image processing method is selected method based upon the determined visual impact characteristic and at least one of the digital images is automatically processed in accordance with the selected image processing method. Each bearing seat contains an internal thread and the bearing cup which fits into the seat has an external thread that engages the internal thread. By introducing these genes into cells and transgenic animals, new cell lines and animal varieties with novel and useful properties can be prepared more efficiently than by relying on the natural rate of mutation.