A photosensitive polymer of a resist composition includes a copolymer of alkyl vinyl ether containing silicon and maleic anhydride, represented by the following formula: . Depending on the type of application, when a transmission protocol is used, different values are used for a comparison variable, which determines a waiting time, in which the system waits for data packets that should arrive at a gateway according to a predetermined sequence. The subject compounds are useful in treatments, including treatments to reduce neuronal activity or to bring about muscular relaxation. As the fluid approaches the outlet, its velocity increases and is drawn away from the nozzle through a connecting channel. The database may comprise, for example, building information model information. For cooling the thus brewed beverage, preferably a heat exchanger is used through which fresh, not yet heated brewing water flows to thereby cool it.