A method and system in accordance with the present invention provides for invoking actions when changes are made in one information source on behlaf of dependent information sources or systems. A battery comprising the same casing is also disclosed. This enables a user to readily find her keys when they are within a cluttered purse. Highly localized halo implant regions are formed by a tilt pre-amorphization implant and a laser thermal anneal of the halo implant region. This serves to dampen the power-distribution LC ringing.