Assessment of colon polyp morphology: Is education effective?

Aim: To determine the inter-observer variability for colon polyp morphology and to identify whether education can improve agreement among observers.

Methods: For purposes of the tests, we recorded colonoscopy video clips that included scenes visualizing the polyps. A total of 15 endoscopists and 15 nurses participated in the study.

Plasmon Enhanced Direct Bandgap Emissions in Cu S @Au S@Au Nanorings.

Nanostructured copper sulfides, promising earth-abundant p-type semiconductors, have found applications in a wide range of fields due to their versatility, tunable low bandgap, and environmental sustainability. The synthesis of hexagonal Cu S @Au S@Au nanorings exhibiting plasmon enhanced emissions at the direct bandgap is reported. The synthesized Cu S @Au S@Au nanorings show greatly enhanced absorption and emission by local plasmons compared to pure copper sulfide nanoparticles.