Nuclear receptors are multifunctional proteins that transduce signals of their cognate ligands. Libido is the etymologically closer cognate known in English. Cognate forms are found throughout the Semitic languages. Each transducer is specific for its cognate receptor. Strabo describes the Getae and Dacians as distinct but cognate tribes. It is a Slavic cognate of the name Paul (derived from the Greek Pavlos). "Rike" is also a now-archaic English word cognate with "reich". Like IHF, Fis induces DNA bending at cognate sites. The assumption is then validated by examining cognate placenames. The Old Norse is cognate to Old English '. The origin of the word is uncertain, perhaps from a Scandinavian word cognate with "clumsy". It is the direct cognate of English "ghost", from a West Germanic "gaistaz". There are several instances in Chinese vocabulary where pleonasms and cognate objects are present. The Roman equivalent of Eos is Aurora, also a cognate showing the characteristic Latin rhotacism. Other scholars have suggested that Hermes may be a cognate of the Vedic Sarama.