002; synchronous-2: P = .006) and tumor-induced stroma (synchronous-1: P = .011; synchronous-2: P = .001) in synchronous OSCCs than in single primary OSCCs. Depth of invasion was considerably lower in synchronous OSCCs than in single primary OSCCs (synchronous-1: P = .007; synchronous-2: P = .002). Lymph node metastasis (synchronous-1: P = .051; synchronous-2: P = .051) was found to be rare in synchronous OSCCs compared with single primary OSCCs.
Conclusion. Synchronous OSCCs show less aggressive histopathologic PLX4032 cell line features than single primary OSCCs. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 109: 732-738)”
electron transport is crucial for the performances of heterojunction bipolar transistors (HBTs). Among the III-V semiconductors family, GaAsSb exhibits several advantages making it
a serious candidate learn more for the new generation of high speed HBTs. However, this alloy suffers from a lack of experimental studies. Properties such as electronic structure and charge carrier mobilities are of prime importance in theoretical device operation calculations. In this article, we investigate the minority electron mobilities by means of an ensemble Monte Carlo modeling including polar optical phonon-plasmon coupling through a self-consistent dielectric function. Realistic electronic structures are provided by a nonlocal empirical pseudopotential method. It is found that GaAs0.50Sb0.50 does not show a mobility enhancement for very high acceptor doping levels unlike GaAs and Ga0.47In0.53As. (C) 2011 American Institute of Physics. [doi:10.1063/1.3533963]“
“Objectives. It is well established that fibrous dysplasia (FD) is caused by mutations of the Arg(201) codon of the GNAS gene. However, the role of GNAS mutation in the pathogenesis of cement-osseous dysplasias (COD) and cemento-ossifying fibromas (COF) is not JQ1 fully known. In this study, we examined COD and COF for mutations at the Arg(201) codon of the GNAS gene.
Study design. The study sample included formalin-fixed, paraffin-embedded tissue blocks from 8 COF and 24 COD. We used 2 PCR-RFLP methods to detect mutations at the Arg(201)
codon of the GNAS gene.
Results. Mutations at the Arg(201) codon of the GNAS gene were not present in any of the COD and COF examined.
Conclusions. GNAS mutations do not play a role in the pathogenesis of COD and COF. This highlights a clear molecular distinction between FD and other histologically similar fibro-osseous lesions of the jaws. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 109: 739-743)”
“The Brisighella Heart Study (BHS) is a prospective, population-based longitudinal epidemiological investigation, which, at baseline enrolled 2939 randomly selected subjects (1491 men and 1448 women), aged 14-84 years, free of cardiovascular disease at enrollment, resident in the northern Italian rural town of Brisighella.