A color cathode ray tube includes in combination an in-line type electron gun assembly and a dot type phosphor screen, wherein an outer panel surface is made substantially flat, an inner surface is curved and a shadow mask has round apertures or holes while having a curved shape with a convex form as projected toward the panel. The hierarchical data structure is able to provide the user preference for providing information desired by the user is provided depending on the environment, based on which various information can be provided. The output terminal of the buffer circuit is connected to the endpoint recording device for outputting a second signal representative of the first signal in response to the first signal. The signal amplifier includes a signal clipper or a function for clipping the output signal of the signal amplifier andor for clipping the input signal amplifier. Thus erasure of the identification mark is practically impossible, because the location of the erasing spot of a recorder cannot be controlled precisely in radial direction in the identification mark area. These compounds are used in the treatment of various disorders, including obesity, anxiety, depression, non-alcoholic fatty liver disease, and psychiatric disorders.