A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A new representation of face appearance, named BITF, is employed as the discrimination feature. Additionally, one or more search functions for selecting a parameter from the parameter space to evaluate a desired characteristic of the system are determined. The control unit changes the display object when a case is detected in which the display object is located between the first object and the second object in the three-dimensional space. The dimensions of the sheet material are determined before an image is printed on the front and before an image is printed on the back, and before an image is printed on the back of the sheet material the latter is centered to its position when the image was printed on the front. In certain embodiments, the invention relates to methods and kits to screen for related agents that induce apoptosis.