A pontoon boat is provided with a jet drive propulsion system in which an impeller is driven by an engine. The LCD system includes a light source and a self-contained display unit including at least a LCD panel and a light guide plate coupled together, wherein the light guide plate is configured to guide light from the light source to the LCD panel as backlight and to structurally support the LCD panel. The controller can perform the shifting process while allowing sufficient margin for division multiplexing and minimal dispersion. The unique identification code may be a UMID or the like. Said protein, which is obtained from the Pilocarpus Heterophyllus plant, can be used to prepare medicaments intended to antagonise the effects of GHRH and to treat proliferative diseases, acromegaly or diabetic nephropathies and retinopathies. The motor is supported within the housing.