Takeshi Yamao

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BACKGROUND The triple technique (lymphoscintigraphy, patent-blue staining, and a gamma probe) constitutes a reliable method for the sentinel lymph node (SLN) biopsy. However, in head and neck melanomas, a shine-through phenomenon, which occurs because these SLNs are close to the primary focus, is irreversibly problematic. To get around the shine-through(More)
Autologous bone grafts remain the gold standard for the treatment of congenital craniofacial disorders; however, there are potential problems including donor site morbidity and limitations to the amount of bone that can be harvested. Recent studies suggest that granulocyte colony-stimulating factor (G-CSF) promotes fracture healing or osteogenesis. The(More)
Extremely high current densities are realized in single-crystal ambipolar light-emitting transistors using an electron-injection buffer layer and a current-confinement structure via laser etching. Moreover, a linear increase in the luminance was observed at current densities of up to 1 kA cm(-2) , which is an efficiency-preservation improvement of three(More)
IO N The ambipolar light-emitting transistor (LET) is a new type of electroluminescent device with the structure of an organic fi eldeffect transistor (OFET) with both hole and electron are transported. [ 1 ] Unlike the conventional organic light-emitting diodes (OLEDs), ambipolar LETs can move the emitting zone far away from the metal electrodes, which are(More)
Organic light-emitting transistors (OLETs) are of great research interest because they combine the advantage of the active channel of a transistor that can control the luminescence of an in-situ light-emitting diode in the same device. Here we report a novel single-crystal OLET (SCLET) that is coupled with single crystal optical feedback resonators. The(More)
A new organic light-emitting field-effect transistor characterized by a metal oxide layer inserted between the organic layer and the gate insulator is proposed. The metal oxide is indirectly connected with source and drain electrodes through the organic layer. Upon increasing the potential difference between the source and drain electrodes, the emission(More)
PURPOSE The incidence of postoperative wound dehiscence following inguinal lymph node dissection (ILND) is higher than that in other anatomic regions. To prevent wound dehiscence, intraoperative interventions, such as trimming off the ischemic part of the flap before wound closure based on indocyanine-green (ICG) fluorescence angiography, have been(More)
Surgical correction of an anophthalmic enophthalmos secondary to inappropriate repair of the eye socket involves several difficult aesthetic issues associated with long-term use of a poorly fitting prosthetic eye. In this paper, we present two cases of anophthalmic enophthalmos. During the treatment of the first patient, unsatisfactory cosmetic problems(More)