The present invention relates to the novel protein Insulin-Responsive DNA Binding Protein-1 and nucleotide sequences that encode it. The image data of the first 2D x-ray image are calculated from a 3D volume dataset of the body region. The high frequency power amplifier circuit is so constituted that the bias voltage for the amplifier transistor in a high frequency power amplifier circuit is supplied from a bias transistor connected with the amplifier transistor in current mirror configuration. A call manager server provides overall system control relative to the gateway unit, the virtual phone server and the telephones. A laminar air flow generated in the fan body strikes the refill to favour diffusion of the volatile substances. It likewise discloses an apparatus for carrying out the inventive method.