An image pick-up apparatus and an image pick-up system constructed to prevent occurrence of random noise in a photographed image due to a random noise component produced in a reference supply circuit. The bracket is mounted to the chassis. Also provided are fragments of the subject nucleic acids and the peptides encoded thereby, as well as antibodies to the subject proteins and transgenic cells and organisms. The first buffer is configured to transition from the first to the second hysteresis state and vice versa in response to the control signal. The heater heats and evaporates the liquid within the wick, thereby accelerating the emission of vapors from the evaporated liquid.