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).
The SGOT (serum glutamic-oxaloacetic transminase) test, also known as an AST test, measures the amount of a protein enzyme called glutamic-oxaloacetic transaminase occurring in your blood. This enzyme is normally found in the liver, heart muscles, muscles and red blood cells.