Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...

Few polymers used in healthcare have stoked as much controversy as polyvinyl chloride (PVC). For many years, this plastic and its additives have been scrutinized by authorities, criticized by NGOs, ...

Polyvinyl chloride, better known as PVC, is a versatile material that’s used in a wide variety of piping applications. It can be as thin and flexible as a wall covering or as rigid as an industrial ...

Plastic is one of the world’s most ubiquitous materials, essential to daily life as we know it. Production is growing at a rate of 3.4 percent—three times faster than our global population growth.