The classical example of thermionic emission is the emission of electrons from a hot cathode into a vacuum (also known as thermal electron emission or the Edison effect) in a vacuum tube. The hot cathode can be a metal filament, a coated metal filament, or a separate structure of metal or carbides or borides of transition metals.
Low confidence regions are areas for which there s a small amount of DNA evidence found in your sample. All ethnicities with predicted percentages of less than 4.5% appear as low confidence regions. Inferior complex is low complex .
Results of these iron studies tests may mean the following: 1  A low serum iron level and low serum ferritin level may be caused by iron deficiency anemia. 2  A high TIBC and low serum iron level may be caused by iron deficiency anemia, pregnancy, and chronic blood loss. A low TIBC and high serum iron may be a sign of sideroblastic anemia (a condition that prevents your red blood cells from using iron). 2  A high serum ferritin level, high serum iron, and low TIBC may be caused by hemochromatosis.