(C) 2011 American Institute of Physics. [doi:10.1063/1.3563575]“
“We describe a technique to treat flap complications after laser in situ keratomileusis while seated at the slitlamp biomicroscope. After topical anesthesia is applied to the cornea, a blunt corneal spatula is used to reflect the flap only to the extent necessary for epithelial debridement. A corneal rake or spatula is then used to remove retained epithelial cells from the stromal bed and underside of the flap. The epithelium is then debrided 1.0 mm to 2.0 mm outside the flap gutter. The increased depth perception with a slit beam greatly improves visualization and identification

of the presence of residual epithelial cells or leftover debris after scraping. The slit beam also aids in proper repositioning of the flap after the procedure.”
“Pea abscisic acid responsive (ABR17) protein is a member of the pathogenesis-related 10 selleck (PR10) family of proteins and its ribonuclease (RNase) activity has been reported previously. In order to investigate the amino acids important for the demonstrated ribonuclease activity of ABR17. site-directed mutants CA3 ic50 H69L and E148A were generated, expressed

in Escherichia coli and purified to homogeneity. These mutations affected RNase activity differently; the H69L mutant exhibited a decreased RNase activity whereas E148A exhibited an elevated activity. A structural model for pea ABR17 has been generated using the three dimensional structure of Lupinus luteus PR10 protein in order to explain the possible effects of the H69L and the E148A mutations on substrate binding and catalysis. (C) 2011 Elsevier Masson SAS. All rights reserved.”
“In this paper, we investigate the physics of electronic states in cubic InAs quantum dot periodic nanostructures embedded in GaAs. This study aims to provide an understanding of the physics of these systems so that they

may be used in technological applications. We have focused on the effect of dot densities and dot sizes on the material properties, evaluating the miniband structure of electron states coming from the bulk conduction band, and have calculated the intraband photon absorption coefficient for several light polarizations. Strain is Selleck GS-9973 included in this analysis in order to obtain the conduction band offset between the materials by solving the Pikus-Bir 8 x 8 k.p Hamiltonian. We offer a comparison with approaches used by previous authors and clarify their range of validity. Finally, we draw our conclusions and propose future technological applications for these periodic arrangements. (C) 2011 American Institute of Physics. [doi:10.1063/1.3562160]“
“PURPOSE: To identify the most common risk factors associated with toxic anterior segment syndrome (TASS).

SETTING: Ophthalmic surgical centers in the United States, Argentina, Brazil, Italy, Mexico, Spain, and Romania.