A FET incorporating a Schottky diode has a structure allowing the ratio of an area in which the Schottky diode is formed and an area in which the FET is formed to be freely adjusted. An elastic piece of the contact pin is extended along substantially horizontal direction. The sectionalizer and the recloser are adapted to communicate via a data network and the recloser is responsive to control inputs sent to the recloser from the sectionalizer over the data network. This language-based approach preserves the standard syntax of the first programming language, allowing a program written with semantic extensions to be compiled and run according to the standard on any standards-compliant system. The isolated Lin\u2212 HSCs also can be transfected with therapeutically useful genes.