Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A, Fv recorded from a monolayer paced at 1 Hz. B, Fv recorded from a monolayer paced at 0.25 Hz. The two traces correspond to traces obtained from two locations within 1 mm in the optical field.
