Multichip packages and methods for making same. , and the like for harnessing the human peripheral field motion detection system to detect and analyze features in a digital image, including the interpretation of images such as radiographic images in medical and other fields. The resilient member can be configured and positioned for resiliently and rotatably biasing the user’s foot about the ankle joint. The variation of maximum output power according to the input voltage is prevented by differentiating the turned-off time of the reference voltage for turning off a main switch, such as a switching MOS transistor according to the input voltage. The polymer is formed of a monomeric unit having at least one catechol group that is oxidized to a quinone upon polymerization. The vacuum exhaust system comprises a first pumping section and a second pumping section disposed downstream of and in series with the first pumping section.