A decoding circuit is adapted for decoding an input signal. These dispersion tuning holes can be used in a holey or conventional fibre geometry to tune the fibre dispersion independently from the other modal properties, such as the mode shape, to generate birefringence and for other dispersion tuning applications. The boiler region follows the transition piece in the direction of flow of the exhaust gas and has, arranged in it, at least one heating surface for the generation of steam. The head engages with a tight interference or frictional fit within the channel formation of the first frame member and the body engages with a tight interference or frictional fit within the channel of the second frame member, such that the frame members are located and held in their particular predetermined position. Methods of using the devices are disclosed for preventing distal embolization during extracranial or intracranial carotid artery, vertebral artery, or coronary artery procedures, or procedures involving any vessel having collateral flow by reversing flow in the diseased vessel. Also provided is a method of forming a dielectric filled, shallow trench isolation region for a MOSFET device where the shallow trench is filled with an an aluminosilicate, an aluminum silicon oxynitride or silicon oxynitride dielectric alloys.