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 .
AncestryDNA is an autosomal DNA test that examines your unique genetic code for clues about your family history. Then we use genetic science to determine family relationships within our database of AncestryDNA members and your ethnicity origins.AncestryDNA extracts your DNA from a small saliva sample.ncestryDNA is an autosomal DNA test that examines your unique genetic code for clues about your family history. Then we use genetic science to determine family relationships within our database of AncestryDNA members and your ethnicity origins.AncestryDNA extracts your DNA from a small saliva sample.