In a multimedia information and control system for use in an automobile, at least one interface is employed which enables a user to access information concerning the automobile and control vehicle functions in an efficient manner. The hinge unit is slidable on the main body together with the folder. The apparatus controls the tilt angle according to a radial position of target track and a focus bias on the basis of estimation results at the time of recording and reading data on the optical disk. The invention also provides AMAMBP complexes, particularly AMFH complexes, and antibodies specifically reactive with this complexes. The invention provides for delivery of the toxin by generation within target cells or by administration and delivery to the cells from without. Preferred agent used is pyrethrum based, naturally occurring or synthesized, which possesses an antagonistic effect toward targeted pests but apparatus is designed to be adaptable to a wide range chemicals.