A product management display system for merchandising product on a shelf includes using a trackless pusher mechanism that travels along a surface on which product is placed and one or more dividers for separating product into rows. In one exemplary embodiment the device comprises a frame with a grip portion, and a waste receptacle with an open end for receiving a waste material deposit. The determination unit determines whether or not operator’s operations at the plurality of operation members corresponds to an improper state deviating from a properly operated state in which at least two predetermined operation members have been operated within a predetermined period of time which is set to measure simultaneity for operations. The preferred catalysts are selected from the group consisting of zeolites from the families MFI, MEL, MTW, TON, MTT, FER, MFS, and the zeolites ZSM-21, ZSM-38 and ZSM-48. Harmonics of the fundamental frequency can then be identified, and conjugates of the harmonics generated. This invention also provides the polypeptides encoded by these nucleic acids and methods to produce the polypeptides.