Methods are disclosed for calibrating a force constant of a movable stage. The spacer may be formed from any suitable material, including a liquid-degradable or heat-degradable composition. A first distillation liquid stream from the absorbing means is fed to a mass transfer means. The magnetic circuit unit includes a yoke. The handle also is inserted through a portion of the lid. The invention also relates to methods of treating IL-12 overproduction-related disorders, methods of treating or preventing disorders related with excessive bone loss, methods for inhibiting osteoclast formation, and methods for treating or preventing a disorder associated with excessive bone resorption.