Abstract: Chimeric H3 receptor polypeptides are provided, as are polynucleotides encoding such polypeptides, and vectors and cells for recombinant expression of such polypeptides. Chimeric H3 receptor polynucleotides and polypeptides may be used, for example, to identify agents that specifically interact with H3 receptor. Such agents find use within therapies for humans and animals afflicted with conditions responsive to histamine H3 receptor modulation.

Abstract: A system for firing a spark plug is disclosed. The system includes a timing controller configured to send a first timing signal and a second timing signal. The system also includes an ignition transformer having a primary winding and a secondary winding and a spark-plug that is operably associated with the secondary winding. A first switching element is disposed between the timing controller and the primary winding of the ignition transformer. The first switching element controls a supply of power to the primary winding based on the first timing signal. Also, a second switching element is disposed between the timing controller and the primary winding of the ignition transformer. The second switching element controls the supply of power to the primary winding based on the second timing signal. A method for firing a spark plug is also disclosed.