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= Rosalind Wulzen = Rosalind Wulzen (b. 1886) was an American physiologist, known for her discovery of the "Wulzen anti-stiffness factor."

Early life
Born in Oakland, California,

Education
Wulzen attended the University of California, Berkeley, graduating with degrees in Physiology and Anatomy (B.S. 1904; M.S. 1910; Ph.D. 1914). Her master's thesis was entitled, "On the mechanism of cytolysis in paramecium," and her doctoral thesis was entitled, "The pituitary gland in its relationship to the early period of growth in birds."

As a student, Wulzen was the Secretary and President of Sigma Xu, as well as the President of Phi Beta Kappa.

Teaching
Between receiving her bachelor's degree and beginning her master's degree, Wulzen was a science teacher at Chino High School in California from 1904-1905 and at Martinez High School in California from 1905-1906. Then, while completing her doctoral degree, Wulzen was an Assistant Professor of Biology at Mills College from 1909-1914, teaching courses on Elementary Biology, Biology Laboratory, Bacteriology, Human Anatomy. Physiology, Physiology Laboratory, Advanced Physiology, and Microscopical Techniques.

Upon graduating with her Ph.D. in 1914, Wulzen became an Instructor in Physiology at the University of California, Berkeley, teaching the courses of Introductory Biology, Experimental Biology, and Physiology. She remained a professor here for fourteen years.

In 1928, Wulzen became an Instructor and Assistant Professor in the Department of Animal Biology at the University of Oregon. Here, she continued her research on the pituitary gland and began studying planarian worms.

Wulzen took a full-time position as a professor at Oregon State University from 1933 to 1954. She took a full year sabbatical in 1941, focusing her time on research, and she eventually became full professor in 1945. Wulzen was an academic advisor to two students within the Departments of Zoology and Chemistry: Mary Lorene Wickert (M.S. 1944) and Virginia Lee Wiemar (M.S. 1947).

Scientific Contributions
Wulzen is most known for her scientific discovery of the "anti-stiffness factor." This is a fat-soluble vitamin which regulates phosphorous metabolism.

Honors
Wulzen received an honorary Doctorate of Science from the University of Oregon in 1943.

Scientific Publications

 * "Nutritional Value for Planarian Worms of Vitamin Depleted Mammalian Tissues," Proceedings of the Society for Experimental Biology and Medicine (January1936)
 * "A Dietary Factor which Imparts to Certain Mammalian Tissues a Quality Necessary for the Correct Nutrition of Planarian Worms," Physiological Zoology (October 1935)
 * "Variations in the Growth-Promoting Power of Kidney for Planarian Worms," Physiological Zoology (April 1932)
 * "Unbalance in Planarian Nutrition," Physiological Zoology (April 1931)
 * "The Growth-Promoting Power of Egg for Planarian Worms," Proceedings of the Society for Experimental Biology and Medicine (December 1929)
 * "The Opposite Effects of Liver and Pancreas Upon the Growth of Planarian Worms," Cancer Research (March 1928)
 * "The Nutrition of Planarian Worms," Science (April 1927)
 * "Some Chemotropic and Feeding Reactions of Planaria Maculata," The Biological Bulletin (1917)
 * "The Pituitary Gland. Its Effect on Growth and Fission of Planarian Worms," Journal of Biological Chemistry (July 1916)
 * "The Morphology and Histology of a Certain Structure Connected with the Pars Intermedia of the Pituitary Body of the Ox," The Anatomical Record (Vol 8, No. 8, August 1914)
 * "The Anterior Lobe of the Pituitary Body in its Relationship to the Early Growth Period of Birds," American Journal of Physiology (May 1914)