The present invention relates to a dial locking system. One method for enhancing a position estimate of a first node may include performing measurements at the first node using a signal received from a second node, and receiving measurements from the second node. Such a failsafe actuator may be used in a stabilizer bar system of a vehicle to ensure that at least one stabilizer bar is returned to a failsafe or engaged condition should a failure condition occur when the stabilizer bar is disengaged. The one or more commands are operable to cause the computing device to perform the requested function. After a plurality of queries have been received and tracked, the SCP creates a billing record and sends it to a billing center. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates.