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).
Quick Answer. The AST blood test is a test used to measure the amount of the enzyme aspartate aminotransferase, or AST in the blood. This enzyme was formerly referred to as serum glutamic oxaloacetic transaminase, or SGOT, as stated by WebMD. The test is usually carried out to determine if there is a problem with the liver.