Einsteinium is radioactive rare earth metal named after Albert Einstein. It is of no commercial importance and only a few of its compounds are known. Einsteinium: historical information. Einsteinium was discovered by Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA. in 1952 at USA. Origin of name: named after Albert Einstein.
gradÂ·ed exÂ·erÂ·cise test. Multistage exercise testing (usually on treadmill or bicycle ergometer) in which exercise intensity is progressively increased (graded) through levels that bring the test subject to a self-imposed fatigue level. See: stress test, Astrand-Ryhming Cycle Ergometer Test.
Stress testing shows how your heart works during physical stress (exercise) and how healthy your heart is. A standard exercise stress test uses an EKG (electrocardiogram) to monitor changes in your heart's electrical activity.maging stress tests take pictures of blood flow throughout your heart. They also show your heart valves and the movement of your heart muscle. Doctors use both types of stress tests to look for signs that your heart isn't getting enough blood flow during exercise.