The present invention relates to methods for treating protozoan infections comprising administering to a subject suffering from protozoan infection. An introducing passage is formed within the main frame for capturing an incoming wind. A dither-signal generator for generation of a periodic signal is used to provide a varying dither signal to a servo of the actuator. The interpolation frame generation module discards the target frame if the target frame is a redundant frame, and generates an interpolation frame between the target frame and the preceding frame by motion compensation using the motion vectors corresponding to the target frame and outputs the interpolation frame and the target frame, if the target frame is a non-redundant frame. The first engagement section is pressed against the pressure receiving member to swing the operating lever and the second engagement section moves the valve element to open the sealing valve when the pressure receiving member is moved inwardly with respect to the negative pressure chamber against a force applied by the pressure device. Next, the selected stock solutions and additives are dispensed into specially designed containers that are capable of being used directly in a standard ink-jet printing system.