sentences:  When Jara did not return his affections, Tuvok's jealousy caused him to be expelled from school and resulted in his parents sending him to the Vulcan master (Joseph Ruskin) to learn emotional control.Tuvok attended Starfleet Academy in San Francisco.Upon graduation, he was commissioned an ensign at age 29, serving as a junior science officer on the USS Excelsior, under Captain Hikaru Sulu (seen in the episode "").