Boron, arsenic, and antimony, among other substances, are used as dopants when added to a pure semiconductor material to alter its electrical characteristics.
Artificially produced gemstones[?] (such as Ruby (gemstone)) usually contain a dopant to identify them as such.
... (CFLN or French Committee of National Liberation)
Compagnons de la France[?] (Companions of France) – group of ex-soldiers formed in Vichy France.
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