The present invention relates to use of inhibitors of Notch signalling pathway selected from the group consisting of 6-Pyridin-3-Amine, its derivatives, in treating andor preventing cancers. Sources multicast certain \u2018preview multicast streams\u2019 to multiple subscribers. The computer system then causes printing of a form by printing of the coded data and the information, using the layout. The pipe portion of the first part is introducible in the porthole and the pipe portion of the second part is introducible in the porthole into the pipe portion of the first part in such a way that an area is formed where the pipe portions overlap each other. A relatively long code can also be communicated between enhanced GPS receivers, thereby permitting the same WB signal to be used to determine range between the enhanced GPS receivers. Thus, an execution cycle time of the PI control is set to be longer than that of the motor drive control.