The present invention relates to compounds according to formula as disclosed herein as well as pharmaceutical compositions which include those compounds. Signal data is received for a plurality of cycles of an amplification experiment performed on the target and a standard nucleic acid. The system further comprises a controller for controlling a refrigeration unit supplying cold refrigerant to the evaporator block in response to the operating conditions of the logic module and the temperature of the evaporator block. When the depressing portion is depressed with the user’s finger, the key inputs, to the information processing apparatus, information indicating that its contacts are in an on-state. The reduced communication rate may be achieved by reducing the symbol rate provided by the multi-rate PHY layer operations.