Proper temperature was required to catch the tough-brittle transition induced by phase separation. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 445-453, 2011″
“Objective. The aim of the present study was to evaluate the feasibility of clinically applying facial-submental artery island flaps on primary reconstruction of oral floor defects following cancer ablation.

Study design. Facial-submental artery island flaps were used to repair defects in the floor of the mouth after cancer ablation in 7 patients (5 men and 2 women; age range, 43-64 years; average age, 51.2 years). Two patients were classified as T1NoMo, and 5 were classified as T2NoMo.

The skin paddles ranged in size from 4.0 x 10.0 cm SC75741 in vivo selleck chemicals llc to 5.0 x 11.0 cm.

Results. Six flaps survived completely, and the success rate was therefore 86% (6 of 7). The remaining flap showed minimal partial necrosis. All of the patients were followed for 6 to 25 months. The speech and swallowing functions following surgery were well recovered, and the patients were satisfied with their facial appearance.

Conclusion. Facial-submental artery island myocutaneous flaps are suitable for repairing small and medium-sized defects of the oral floor. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod

2010; 109: e12-e16)”
“Lasers are widely used to modify the internal structure of semitransparent materials for a wide variety of applications, including waveguide fabrication and laser glass damage healing. The gray diffusion approximation used in past models to describe radiation cooling is not adequate for these materials,

particularly near the heated surface layer. In this paper we describe a computational model based upon solving the radiation transport equation in 1D by the P(n) method with similar to 500 photon energy bands, and by multi-group radiation diffusion in 2D with fourteen photon energy bands. The model accounts for the temperature-dependent absorption of infrared laser light and subsequent redistribution of the deposited heat by both radiation and conductive transport. We present representative results for fused Linsitinib silica irradiated with 2-12 W of 4.6 or 10.6 mm laser light for 5-10 s pulse durations in a 1 mm spot, which is small compared to the diameter and thickness of the silica slab. We show that, unlike the case for bulk heating, in localized infrared laser heating radiation transport plays only a very small role in the thermal response of silica. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549829]“
“In this article, we present a facile method for the synthesis of an azo-group-bound silica (SiO(2)-azo) initiator. The azo groups were introduced onto the surface of silica (SiO(2)) nanoparticles via facile condensation between 4,4`-azobis-4-cyanopentanoic acid and the alkyl-hydroxyl groups – immobilized on the SiO(2) nanoparticle surface under ambient conditions.