To cite: Parida JR, Misra DP, Agarwal V. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015212443 DESCRIPTION A 14-year-old girl was referred for skin tightening in the fingers. She did not have Raynaud’s phenomenon, gastroesophageal reflux disease or other systemic symptoms. She had had a hoarse voice since birth and was developmentally normal. She was born of ...

The structural and optical characterization of bulk GeO2-PbO glasses was the goal of this study. In this regard, six different (100-x)GeO2‌-xPbO (15<x<45) glasses were prepared by conventional melt quenching technique between two steel sheets. The produced samples were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and UV-Vis s...

Thin films of binary Bi 0 -TeO and Bi 0 -V 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. The optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a PERKIN-ELMER uv/Vis spectrophotometer. It is found that the value of n=3/2 in the Davis-Mott equation is best fitted for the fundamental absorption edge f...

Optical spectroscopy techniques, including visible and near infrared (IR) Raman and synchrotron IR methods have been applied to study solid nitrogen at megabar pressures. We find that nitrogen becomes totally opaque above 150 GPa, accompanied by the disappearance of Raman and IR vibrational excitations, while new broad IR and Raman bands become visible. Optical absorption measurements reveal th...

This work proposes a region-based shape signature that uses a combination of three different types of pattern spectra. The proposed method is inspired by the connected shape filter proposed by Urbach et al. We extract pattern spectra from the red, green and blue color bands of an image then incorporate machine learning techniques for application in photographic image retrieval. Our experiments ...

The influence of change in deposition conditions of silane concentration and substrate temperature on optical properties of hydrogenated microcrystalline silicon thin film samples prepared by Plasma Enhanced Chemical Vapor Deposition (PECVD) technique, are investigated. The crystalline volume fraction for the samples determined from Raman spectra are correlated with the silane concentration, su...

SIEBENMANN (1908) described lipidproteinosis, and the condition was subsequently reported as a clinical entity by Urbach and Wiethe (1929). During infancy and early childhood a structureless eosinophilic substance develops under the epithelium of the skin and upper respiratory tract. Hoarseness is followed by a skin eruption giving a pale, yellow-brown, pock-marked appearance, especially on the...