Localized necrosis of the bone, cartilage, and soft tissue of the external auditory canal is an uncommon side effect of radiotherapy to the parotid region. Five patients developed late onset skin necrosis of a quadrant of the ear canal secondary to an underlying osteoradionecrosis of the tympanic ring. We report a one-stage procedure to excise the necrotic tissue and replace it with a local rot...

The paper defines the field of special optical fibers. Classification of tailored optical fibers was introduced. The characteristics of main families of such fibers were presented. There were discussed the following fibers: isotropic made of soft glass, of complex refraction – including ring-index, polarization maintaining and polarizing, elliptical, holey with macro holes and porous, nonlinear...

Presented is a precise measurement of the B̄ → D`ν̄` branching fraction using 81.47fb of data collected with the BABAR detector at the PEP-II ee storage ring at the Stanford Linear Accelerator Center. The measurement was performed by partially reconstructing the D meson from B̄ → D`ν̄` decays using only the soft pion of the D → Dπ decay to reconstruct its four vector. The branching fraction was mea...

The soft-X ray range, between 1-10 nm wavelength, is highly interesting for X-ray microscopy. Taking advantage of it requires, however, to operate a high resolution instrument at a variable wavelength. We describe here an image converter X-ray microscope which is based on secondary pharoemission. This instrument is now developped at the Institut dlOptique (Orsay); it will be installed near ACO ...

Non-Hodgkin lymphoma (NHL) represents the third most common group of malignant lesions of the oral cavity, following squamous cell carcinomas and salivary gland neoplasms. It accounts for 3-5% of all malignant lesions of the oral cavity [1]. Further, only 1% of all lymphomas are primary oral cavity lymphoma. Non-Hodgkin’s lymphoma of the tongue is extremely rare. It can arise from Waldeyer’s ri...

Two novel diterpenoids, cespitulones A (1) and B (2), were isolated from extracts of the soft coral Cespitularia taeniata. Both compounds possess an unprecedented bicyclo [10.3.1] ring system with C-C bond connections between C-10 and C-20, and between C-20 and C-11. Their structures were elucidated on the basis of extensive spectroscopic analyses. Compound 1 exhibited significant cytotoxicity ...

In the title complex, [AuCl(C24H20NOP)], the ligand has N, P and O electron-donating atoms but the Au(I) atom is coordinated only by the 'soft' P atom and an additional Cl atom in an almost linear fashion. Important geometrical parameters include Au-P = 2.2321 (13) Å, Au-Cl = 2.2820 (13) Å and P-Au-Cl = 176.49 (5)°. The furan ring is disordered over two positions in a 0.51 (2):0.49 (2) ratio.

We describe a 55-year-old man who presented with a stroke resulting from active infective endocarditis (IE) involving a heavily calcified bicuspid aortic valve. The case highlights the infrequency of IE involving a heavily calcified valve, the inability of the infection to penetrate the calcific deposits, and the ability of the infection to spread to the adjacent soft tissues, leading to ring a...

A 32-year-old woman underwent microsurgical resection of a neural fibrolipoma of the digital nerve of the ring finger. At the 6-month follow-up, the patient had good recovery, no recurrence, and preservation of neural function. Caution should be exercised while planning microsurgical dissection on soft-tissue masses of fingers and hands. Total resection of the lesion and nerve grafting should b...

An investigation of how electron/photon beam exposures affect the intercalation rate of Na deposited on graphene prepared on Si-face SiC is presented. Focused radiation from a storage ring is used for soft X-ray exposures while the electron beam in a low energy electron microscope is utilized for electron exposures. The microscopy and core level spectroscopy data presented clearly show that the...