An aircraft type rating is a certification allowing pilots or flight engineers to operate a specific model of aircraft, typically those weighing over 12,500 MGTOW or featuring turbojet engines.

An updated emergency visit classification tool enables managers to make valid inferences about levels of appropriateness of emergency department utilization and healthcare needs within a population.

Classification of neurons into types enables their reproducible identification across times, laboratories and conditions. Classification also facilitates genetic access for functional studies, as well ...