This paper investigates the stability of dilution series of pin and nip microcrystalline silicon solar cells under low-energy proton irradiation (E = 405 keV). Variation of electrical parameters, defect-related absorption and Urbach parameter are investigated as a function of irradiation and annealing steps. Highly microcrystalline cells show a relative efficiency loss of up to 80 % after proto...

Thin films of GeTe2 were deposited on glass substrates using radio-frequency magnetron sputtering with various hydrogen flow rates in the growth chamber. Transmission data of deposited films were taken and used to determine optical constants refractive index n , extinction coefficient , and absorption coefficient and the energies corresponding to absorption coefficients of 104 and 103 cm−1 E04,...

In a recent article the principles of and the recommended practices for rescaling scalp-recorded electrophysiological data were submitted to a comprehensive review [Urbach, T.P., Kutas, M., 2002. The intractability of scaling scalp distributions to infer neuroelectric sources. Psychophysiology 39, 791-808]. The authors argued, on both conceptual and pragmatic grounds, that the practice of resca...

Extracellular matrix protein 1 (ECM1) is a secreted glycoprotein that plays a pivotal role in the structural and homeostatic biology of the skin, particularly in angiogenesis, reconstitution of basement membrane, proliferation and differentiation of epidermal keratinocytes and dermal fibroblasts, and malignant transformation. This rationale is substantiated by loss-of-function mutations in the ...

Abstract We propose new optical dispersion models to describe the imaginary part of electrical permittivity dielectric and semiconductor materials in fundamental absorption region. work out our procedure based on well-known structure semi-empirical Tauc–Lorentz model band-fluctuations approach derive a five-parameter formula that describes Urbach, Tauc high-absorption regions direct indirect se...

Lipoid proteinosis is a rare autosomal recessive disease characterized by the deposition of hyaline material in the skin and internal organs. The main clinical features are hoarseness and typical skin lesions. In this report we describe the endoscopic and radiologic findings in a Brazilian female patient presenting extensive gastrointestinal involvement and the evolution of the detected lesions...

detail_view&confID=40&abstractID=34492; cited May 8, 2008] 25. Hodgson D, Urbach D, Przybysz R, Gong Y, Sullivan T, Rabeneck L. Cancer surgery. Chapter 2. In: Tu JV, Pinfold SP, McColgan P, Laupacis A, eds. Access to Health Services in Ontario. Toronto: Institute for Clinical Evaluative Sciences; April 2005: 10. [Available online at: www.ices.on.ca/WebBuild/ site/ices-internet-upload/file_colle...