The collapse pressure of PMMA monolayers decreases as the temperature is elevated. It was shown the area relaxation process of PMMA could be described by a model considering the nucleation and growth mechanisms. The simulation parameters of area relaxation of PMMA with different molecular weights at 8 mN/m are very similar, indicating similar mechanisms. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 2615-2620, 2011″
“Hypothalamic hamartomas (HHs) are typically associated with pharmacologically intractable gelastic LY411575 order seizures, which often develop into complex partial
and/or generalized tonic-clonic seizures. The transcallosal, anterior interforniceal (TAIF) approach to HH resection has been shown to be safe and to result in good seizure frequency reduction. We documented postsurgical cognitive functioning and examined whether using the TAIF approach with older adolescents and adults affected long-term cognitive outcome. Six older adolescents and adults, who had undergone MK-2206 resection of an HH using the TAIF approach, underwent comprehensive neuropsychological assessment at least 2 years postoperatively.
Four of these individuals also had neuropsychological evaluation preoperatively. All participants who were assessed pre- and postoperatively demonstrated long-term improvement in perceptual/visuospatial function after surgery. Three of the four participants also demonstrated lasting reduction in memory function postoperatively. The TAIF approach to HH resection is associated with a high risk of long-term memory impairment in older adolescents and adults. (C) 2010 Elsevier Inc. All rights reserved.”
“We design a high-efficiency two-dimensional photonic crystal (PhC) Y-branch waveguide formed as a heterostructure with two different triangular PhCs composed of air holes. At photonic-band frequency regions corresponding Screening Library to circular equifrequency surfaces, the two PhCs could be taken as effective homogeneous media with effective refractive indices. A triangular coupler composed of the PhC is designed at the input port in
order to divide the incident beam into two parts. The two parts finally propagate into different channels. A case demonstrated here shows that the total transmission of light passing through the Y-branch waveguide is about 91.2%. The propagation phenomena can be explained by the mechanism of total internal reflection very well. (C) 2011 American Institute of Physics. [doi:10.1063/1.3532048]“
“It is of practical importance to develop the tetra-needle-shaped ZnO whisker (T-ZnOw)-reinforced polymer composites that have isotropic properties. To give a guidance of material design and manufacture, it is necessary to have a theoretical analysis of the fracture mechanisms of this peculiar structure fiber in polymer composites.