Bodies not in contact in a vacuum have only the radiation mechanism for heat energy transfer. An obvious example is the Earth in space, receiving heat radiation from the Sun which is partly absorbed and partly reflected, and emitting heat radiation to space.
Aspartate Aminotransferase (AST). Guide. An aspartate aminotransferase (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells, liver, heart, muscle tissue, pancreas, and kidneys. AST formerly was called serum glutamic oxaloacetic transaminase (SGOT).
AST (aspartate aminotransferase), or SGOT (serum glutamic-oxaloacetic transaminase) as it is also referred to, is one of the many enzymes (proteins) that reside in the cells of your body and assist in the chemical reactions taking place in your body.