How to reset your modern devices to form a separate S2 "household" while keeping older gear on the S1 "household".
When the S1–S2 interval is very short (approaching the effective refractory period of the AV node), instead of using a single S2, the electrophysiologist delivers (S2 and S3) with a fixed, very short interstimulus interval (e.g., S2–S3 = 10–20 ms). The S1–S2 interval is kept constant, and the S2–S3 interval is varied. splitting s1
Describe the S protein and its two main domains: S1 (binding) and S2 (fusion). How to reset your modern devices to form