Nanofabrication of normally-off GaN vertical nanowire MESFETs.

Gallium nitride (GaN) all-around (wrap) gate vertical nanowire (V-NW) field-effect transistors (FETs) are favorable for enhanced electrostatic control of the gate and selectivity for normally on/off operation. In this work, GaN V-NW FETs with a Schottky barrier gate (V-NW MESFETs), were fabricated for the first time. A nanofabrication process with comprehensive description of all processing steps is reported.

Ossifying fibroma of the temporal bone.

A rare case of ossifying fibroma of the temporal bone is presented. Fibro-osseous lesions are benign neoplasms but may show an aggressive behaviour when invading important anatomical structures. The lack of experience in the treatment of those tumours is reflected in the small relative literature.

Pharyngocutaneous fistula after total laryngectomy: incidence, cause, and treatment.

Postoperative pharyngocutaneous fistula is a major complication of total laryngectomy that prolongs the short hospitalization of 2 to 3 weeks to many weeks or even months. It is a common complication that increases the morbidity and mortality of the procedure. In the Department of Otolaryngology of the Red Cross Hospital of Athens, 310 patients underwent total laryngectomy from January 1980 through December 1989.