The present invention relates to pharmaceutical preparations and methods for treating individuals infected with the human immunodeficiency virus. An actuator is fixedly coupled to the seat cushion and operatively coupled to the output shaft for rotatably driving the output shaft. As documents having user access rights are located, session state information corresponding to the number of located documents having user access rights and to the number of analyzed documents required to locate the number of documents having user access rights is maintained. According to the present invention, a charging capacity is correctly corrected.