Trichology Course aimed at practitioners who desire more knowledge about hair but do not want to become fully qualified trichologists. This is offered by home-study but also taught in America and Singapore. A Chinese version of this course is available. Registered members of the IAT can use the letters "IAT" after their name. Members are controlled by a code of ethics. Trichology Trichology is the branch of dermatology that deals with the scientific study of the health of hair and scalp. Trichologists are hair and scalp specialists (one type of skin specialist) who diagnose the causes of hair fall, hair breakage,
What Is History? art. Though Carr conceded that historians cannot predict exact events in the future, he argued that historical generalizations can supply information useful to understanding both the present and the future. Carr argued that since scientists are not purely neutral observers, but have a reciprocal relationship with the objects under their study just like historians, that this supported identifying history with the sciences rather than the arts. Likewise, Carr contended that history like science has no moral judgements, which in his opinion supports the identification of history as a science. Carr was well known for his assertions in "What Is History?"