Mechanistic understanding of N activation: a comparison of unsupported and supported Ru catalysts.

N dissociative adsorption is commonly the rate-determining step in thermal ammonia synthesis. Herein, we performed density functional theory (DFT) calculations to understand the N dissociation mechanism on models of unsupported Ru(0001) terraces, Ru B5 sites, and polar MgO(111)-supported Ru cluster mimicking a B5 site geometry, denoted (Ru(B5-like)/MgO(111)). The activation energy of N dissociative adsorption on the Ru(B5-like)/MgO(111) model ( = 0.

Mini-LEDs with Diffuse Reflection Cavity Arrays and Quantum Dot Film for Thin, Large-Area, High-Luminance Flat Light Source.

Mini-light-emitting diodes (mini-LEDs) were combined with multiple three-dimensional (3D) diffuse reflection cavity arrays (DRCAs) to produce thin, large-area, high-brightness, flat light source modules. The curvature of the 3D free-form DRCA was optimized to control its light path; this increased the distance between light sources and reduced the number of light sources used. Experiments with a 12.

From mono-PEGylation towards anti-nonspecific protein interaction: comparison of dihydrolipoic acid versus glutathione-capped fluorescent gold nanoclusters using gel electrophoresis.

Ultrafine fluorescent gold nanoclusters (AuNCs) have emerged as biocompatible nanoprobes for biomedical imaging in vivo, and the precision surface chemistry of AuNCs is the key for attaining their clinical application. Comparison of two promising candidates for future nanomedicine, i.e.

Ulcerative keratitis caused by Haemophilus influenzae.

Purpose: To report the clinical course, treatments, antibiotic sensitivities, and visual outcomes for eyes with ulcerative keratitis caused by Haemophlilus influenzae.

Methods: The medical records of 10 patients with culture-proven H. influenzae-associated corneal ulcer in a tertiary referral center in a 5-year period (1998-2003) were retrospectively reviewed.

Mycobacterium keratitis after laser in situ keratomileusis.

Purpose: We present a case of Mycobacterium keratitis after laser in situ keratomileusis (LASIK).

Method: A retrospective case report.

Results: A 40-year-old woman developed Mycobacterium chelonae keratitis in the right eye 2 weeks after bilateral LASIK.

Idiopathic subconjunctival abscess.

Subconjunctival abscess is a relatively rare cause of ocular infection. It is usually associated with predisposing factors such as previous trauma or surgery. We report a case of subconjunctival abscess in a 61-year-old woman with no known risk factors.