“
“From the 1-BuOH-soluble fraction of a MeOH extract of the leaves of Guettarda speciosa L., two new compounds (1, 2) were isolated together with six known compounds. Spectroscopic analysis of 1 and 2 established their structures to be derivatives of a glycerol alpha-glucuronide and a megastigmane glycoside, respectively. HPLC analysis
of the hydrolyzate of 1 confirmed the presence of d-glucuronic acid in the structure, and the modified Mosher’s method established the absolute structure of 2.”
“We report the Ge thermal instability against surface diffusion in extremely narrow channels isolated by SiO(2) and demonstrate the Sotrastaurin mouse selective growth of strain-relaxed Ge epitaxial layers in channels as narrow as 10 nm on patterned Si (001) substrates by a combination of low temperature growth and selective recrystallization using Ge melt and regrowth during a millisecond laser anneal. Filling narrow channels at high growth temperatures is prohibited by Ge outdiffusion due to the high Ge chemical potential in such narrow channels.
The Ge thermal instability depends on the channel width and a critical channel width of 50 nm is extracted from our calculation and experimental results. The Ge surface diffusion rate is dominated BMS-345541 ic97 by the surface diffusion activation energy barrier that is significantly enhanced by the adsorbed surface hydrides. At a low temperature below 450 degrees C, a hydride-terminated surface is maintained which increases the Ge surface diffusion barrier and retards the outdiffusion of the Ge adatoms, providing excellent channel filling. The resulting
low crystalline quality can be restored with a millisecond laser melt and regrowth. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3525982]“
“We YM155 studied an enucleated postmortem eye from an 82-year-old white donor who had been implanted with a Pannu “”universal”" intraocular lens (IOL) in the anterior chamber approximately 20 years earlier. This IOL has design features characteristic of a 1-piece, C-loop posterior chamber IOL. Magnetic resonance imaging showed a relatively well-centered IOL in the anterior chamber with haptics impinging on the iris. Gross and light microscopic analyses of the eye and the IOL showed peripheral anterior synechiae enclaving one haptic, areas of angle widening, significant attenuation of the corneal endothelium, multiple areas of iris trauma secondary to optic and haptic iris abrasion, large areas of pigment dispersion in the angle, diffuse pigment accumulation within the anterior chamber, and attenuation of the ganglion cell layer. The histopathological findings were consistent with glaucoma and chronic inflammation.”
“The CHCl(3) fraction of Cnidium monnieri fruits significantly inhibited the proliferation of hepatic stellate cells in an in-vitro assay system employing HSC-T6 hepatic stellate cell lines. Activity-guided fractionation of the CHCl(3) fraction of C.