Dan (rank) highest level that might be attained, with instructor certification and judge/judgment authorization being understood as higher-level or more sophisticated. Many arts use between one and ten dan ranks: In some martial arts, black belts are worn for all "dan" grades. In others, the highest grade (10th "dan") wears a red colored belt. In Jūdo and Shotokan 6th to 8th "dan" may wear a red and white-patterned belt and 9th to 10th "dan" may wear a solid red belt. There is some variation even within styles. Generally, belts do not have markings that indicate the actual "dan" grade. Okinawan styles used
Judo in Canada at the University of Ottawa, "Influences on the development of beliefs of Canadian expert judo coaches and their impact on action" (1998), describes the beliefs of Canadian Judo coaches and how these beliefs were represented in their actions during training. And finally, Michelle Rogers' MA thesis in Anthropology at the University of Victoria, "Twentieth Century Travels: Tales of a Canadian Judoka" (2005), examines the life of her father, Olympian Doug Rogers, and uses his story as a case study of how large-scale global processes can influence the life of an individual. Judo has not received widespread attention in Canadian television