A lifecycle analyzer includes a temperature control element for controlling the temperature of a plurality of magnetoresistive elements, which may be, e. The structure defines a boss that projects along an axis. A plurality of cross members are arranged in pairs extending between the legs, and at least one latch mechanism is operable in a latched condition to maintain a predetermined gap along a leg between one of the slider joints and one of the pivot joints to prevent movement of the playard toward the folded arrangement. The lenticular knit structures have portions formed with different yarns. The pair of piezoelectric elements are placed on the suspension board with circuit such that a first imaginary line extending along an expandingcontracting direction of one of the piezoelectric elements crosses a second imaginary line extending along an expandingcontracting direction of the other piezoelectric element.