7866 and 0.8661 for the training set, click here respectively. The reliability of the proposed models was validated through the test set. The descriptors involved in the models are related to the molecular conformational changes and some functional groups. As these descriptors are directly calculated from the molecular structure, the proposed models can be employed to estimate the chain-transfer constants for styrene. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 356-364, 2012″
“The temperature dependences of the polarization switching

properties of Bi3.15Nd0.85Ti3O12 (BNT) ferroelectric thin film in the range from 25 to 150 degrees C have been investigated. With increasing temperature, the switchable polarization and switching time decrease. Meanwhile, the depolarization field due to the interfacial layer between the electrode and the BNT film increases with increasing temperature, which induces more domain back-switching. In addition, the local selleckchem switching properties of BNT film have been studied using piezoresponse force microscopy, and it is found that the prepared

BNT film has good local switching behaviors. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3600237]“
“Chronic hepatitis C virus (HCV) viremia has been known to provoke a plethora of autoimmune syndromes referred to as extrahepatic manifestations of chronic HCV infection. Aim of the current study was to assess the prevalence of rheumatologic manifestations among Egyptians with hepatitis C infection and its’ association with cryoglobulin profile. The current research represents a cross-sectional study where

patients with chronic HCV infection attending selleck screening library the outpatient clinic of the National Hepatology and Tropical Medicine Research Institute over a period of 1 year were interviewed. Patients with decompensated liver disease, on interferon therapy, having end-stage renal disease or coexisting viral infection like hepatitis B surface antibody positive patients were all excluded from the research. Laboratory investigations as well as serological assay including cryoglobulin profile, rheumatoid factor, antinuclear antibody, HCV-PCR were performed. Three hundred and six patients having chronic HCV infection were interviewed in this research. The overall estimated prevalence of rheumatologic manifestations in the current research was 16.39%, chronic fatigue syndrome 9.5%, sicca symptoms 8.8%, arthralgia 6.5%, fibromyalgia 1.9%, myalgia 1.3%, arthritis 0.7%, cryoglobulinemic vasculitis 0.7%, autoimmune hemolytic anemia 0.7%, thrombocytopenia 0.7%. Xerophthalmia was significantly present in male population (p=0.04), whereas fibromyalgia, cryoglobulinemic vasculitis, arthritis, and autoimmune hemolytic anemia were significantly present in female population under study (p<0.05). In chronic HCV genotype 4 infection, the prevalence of rheumatologic manifestations was 16.