The present invention relates generally to statistics and calibration of instruments. The process and the cell line use a first transcription unit containing a gene for a transactivator protein to control the transactivation of a second transcription unit such that the amount of the desired protein expression can be increased without adversely affecting the cell growth. Instructions may be transmitted to at least one vehicle camera to capture one or more images of objects or events outside of the vehicle in response to receiving the at least one broadcasted message. The set of components includes solely a plurality of storage components selected from the group consisting of a CD-ROM and a hard drive. The shingle ridge cover provides upwardly disposed stripes of adhesive material providing for interbonding of successive ridge covers on a roof, and a rearwardly disposed strip of non-adherence material providing for the ridge covers to be stacked and shipped to a job site substantially without the stacked ridge covers adhering to one another.