An adapter may be for a multi-contact connector including at least one insert including at least two cavities. When the piston in the actuator is moved in the second opposite direction under the external load and the rate of flow of fluid out of the actuator through the flow compensated valve exceeds a selected rate, an orifice is introduced in the flow path to restrict flow from the actuator. Moreover, the present invention describes a method and computer program for controlling reflectivity of a flat display panel in a portable electronic device. Methods for treatment, prevention, or amelioration of one or more symptoms of bronchoconstrictive disorders using the compositions provided herein are also provided.