A serialparallel data conversion apparatus and a method thereof are used to convert serial data into parallel data by a delay pulse and three stage registers, wherein the device includes a first data register, a second data register, a third data register, a frequency divider and a delay controller. The curable compositions prepared therewith are used to prepare coated substrates, and to produce conformally sealed printed wiring boards and flexible circuits. The injection guide is transformable from a pre-injection configuration for placement in the bladder to an injection configuration for injection of a pharmaceutical such as botulinum toxin into the bladder tissue. Such a composition shows a good antistatic behavior without compromising optical properties. A cascode-chopping transistor operating both as a cascode transistor and a chopping transistor couples the node and an amplifier output in response to a bias voltage chopped by the chopping signal.