Systems, apparatuses, and methods for providing a consumer with an alert or other information regarding a payment transaction. The openings can vary in response to the heat of the medium passing through the openings. The taper angle of the tapered shape is such an angle that decrease electric field concentration around a junction portion between the source and drain regions and the amorphous semiconductor layer. An organic light-emitting device incorporates such a composite article to provide an extended life thereto. If a state of the model contains both controlled and observable invocations, a timeout transition is added to the FSM to give an implementation time to come up with an observed method invocation before continuing to controlled invocations. Importantly, the head suspension maintains the slider at a negative pitch static attitude.