NanoSIMS Analysis of Rare Earth Elements in Silicate Glass and Zircon: Implications for Partition Coefficients.

We have developed a method to analyze all rare earth elements in silicate glasses and zircon minerals using a high lateral resolution secondary ion mass spectrometer (NanoSIMS). A 2nA O primary beam was used to sputter a 7-8-μm diameter crater on the sample surface, and secondary positive ions were extracted for mass analysis using an accelerating voltage of 8 kV. A high mass resolving power of 9,400 at 10% peak height was attained to separate heavy REE from oxide of light REE.

One-year results of anti-vascular endothelial growth factor therapy combined with triamcinolone acetonide for macular edema associated with branch retinal vein occlusion.

Purpose: To compare anti-vascular endothelial growth factor (anti-VEGF) monotherapy with anti-VEGF therapy combined with sub-Tenon's capsule injections of triamcinolone acetonide (STTA) in patients with macular edema (ME) associated with branch retinal vein occlusion (BRVO).

Study Design: Retrospective observational study METHODS: This study included 186 eyes: 138 eyes received intravitreal injection of ranibizumab (IVR), and the remaining 48 eyes received IVR combined with STTA therapy. If additional IVR were necessary, STTA were performed simultaneously.