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 .
Confidence thresholds in Ancestry Composition. For each section of your DNA, Ancestry Composition assigns a probability to each reference population for a given segment of DNA. We assign populations at five different confidence levels ranging from conservative to speculative. You can select the confidence at which these populations are assigned within the Scientific Details section of Ancestry Composition. The default Speculative Estimate corresponds to 50% confidence. You have the option to make the estimate more strict, meaning that the interpretation shown is more likely to be accurate.