Crowdsourced Assessment of Surgical Skill Proficiency in Cataract Surgery.

Objective: To test whether crowdsourced lay raters can accurately assess cataract surgical skills.

Design: Two-armed study: independent cross-sectional and longitudinal cohorts.

Setting: Washington University Department of Ophthalmology.

Genomic and Phenotypic Characterization of a Broad Panel of Patient-Derived Xenografts Reflects the Diversity of Glioblastoma.

Purpose: Glioblastoma is the most frequent and lethal primary brain tumor. Development of novel therapies relies on the availability of relevant preclinical models. We have established a panel of 96 glioblastoma patient-derived xenografts (PDX) and undertaken its genomic and phenotypic characterization.

A photoreactive crystalline quasiracemate.

Rationally designed racemic and quasiracemic sulfonamidecinnamic acids assemble to give hydrogen-bonded dimers with coplanar alignment of neighboring olefins. The quasiracemate phase contains near inversion-related motifs with chemically distinct components forming supramolecular heterodimers that undergo asymmetric photodimerization.