The news of his shooting — captured on video in grisly detail — sent shockwaves through classrooms everywhere.

They cost the same at a hefty $249, but Apple's third-generation noise-canceling earbuds have improved in all the key areas, including fit, noise cancellation, sound quality and battery life.

Objective The purpose of this article is to share insights from the National Institute for Health and Care Research Clinical Research Network (NIHR CRN) in delivering research for Multiple Long Term ...