Tunneling time probed by quantum shot noise.

In typical metallic tunnel junctions, the tunneling events occur on a femtosecond timescale. An estimation of this time requires current measurements at optical frequencies and remains challenging. However, it has been known for more than 40 years that as soon as the bias voltage exceeds one volt, the junction emits infrared radiation as an electrically driven optical antenna.

[Efficacy and tolerance of Algosteril (calcium alginate) versus Jelonet (paraffin gauze) in the treatment of scalp graft donor sites in children. Results of a randomized study].

Split skin graft is frequently needed in the treatment of burned patients. Scalp is often free of burns. Due to its good skin quality and important surface, scalp is a very interesting skin donor site, specially in case of children.

[Evaluation of the treatment of cystic lymphangioma by percutaneous injection of Ethibloc in 20 patients].

Background: Surgical treatment of cystic lymphangioma (CL) is so often followed by local and general complications that non invasive treatment must be considered.

Population And Methods: Between 1987 and 1993, 20 patients with a superficial macrocystic lymphangioma were treated by percutaneous injection of Ethibloc in order to reduce the volume of the CL, with a minimum follow-up of 1 year. Fourteen CL were cervico-facial and six were located in the upper half of the body.

[Surgical cover of dorsolumbar radionecrosis. Apropos of 6 cases].

Thoracolumbar radionecrosis may be difficult to cover. We often use muscular or myocutaneus flaps available in this location, mainly the latissimus dorsi flap. It can be used as a pedicle, free, or especially a "reversed" flap with lumbar pedicles.

[Obstruction: a rare complication of congenital giant blue nevus].

Background: The blue nevus is an acquired or congenital dermal melanosis, usually small in size. It is sometimes giant and responsible for complications.

Case Report: A newborn had a large infiltrated blue news located on buttocks, lombosacral and perianal areas.