Abstract: Previous research has sought to identify factors and moderators that influence students’ perceived social presence of their instructors in face-to-face, remote, synchronous, and asynchronous ...

Abstract: Asynchronous opening in a double-break DC vacuum circuit breaker leads to a gap difference between the two interruption gaps, which in turn results in nonuniform arc energy distribution and ...

Cardiac arrest is common and deadly, affecting up to 700 000 people in the United States annually. Advanced cardiac life support measures are commonly employed to improve outcomes. This 2025 guideline ...