Cardiac action potential. The cardiac action potential is a brief change in voltage (membrane potential) across the cell membrane of heart cells. This is caused by the movement of charged atoms (called ions) between the inside and outside of the cell, through proteins called ion channels.
Rob and Natalie Buckel are owners of the Smokeâs Poutinerie Pawn Plaza location and are longtime locals. Rob is a military veteran and a cancer survivor, and Natalie grew up a few blocks from the Strip. They are one of the first three tenants of the new Pawn Plaza. Ryan Smolkin started his Smokeâs Poutinerie restaurant empire about five years ago and already has 100 locations across Canada, with plans to open 35 more by September.
In an attempt to quit the tobacco habit as many as one-fifth of smokers have tried e-cigarettes [source: Ross]. E-cigarettes were first developed in China and were introduced to the U.S. market in 2007. Many are similar enough in appearance to be mistaken for regular tobacco cigarettes. But one look inside and you'll see the main difference: This is a tobacco-free product. E-cigs are actually vaporizers; instead of burning tobacco, the mechanism heats up a liquid. The liquid turns into vapor, which is then inhaled, or vaped.. While some argue that vapor offers health advantages over traditional cigarette smoke, regulatory agencies and some health experts aren't so sure that's true. Before you consider taking up the e-cigarette habit, read on to get the facts.