abstract:A keepalive (KA) is a message sent by one device to another to check that the link between the two is operating, or to prevent this link from being broken.
Some Mexican firms are hoping to join the booming life-sciences industry in the U.S. Medical device maker Innovamedica has a product in development called a ventricular assistive device--used to keep patients alive during heart surgery--that is undergoing animal trials at the Texas Heart Institute.
These are the cells which carry oxygen around the body to keep tissues alive - a child with severe thalassaemia will become anaemic, fail to thrive, and, if left without treatment, can die in childhood.