Methyl-B 12 is absorbed by an intestinal mechanism using intrinsic factor and by a diffusion process in which approximately 1% of the oral dose is absorbed. The human physiology of vitamin B 12 is complex, and therefore is prone to mishaps leading to vitamin B12 deficiency.ecause intrinsic factor is crucial for the normal absorption of B 12, its lack in pernicious anemia causes a vitamin B12 deficiency. Many other subtler kinds of vitamin B 12 deficiency and their biochemical effects have since been elucidated.
Gail Levin, âEdward Hopperâs Nighthawks, Surrealism, and the War,â Art Institute of Chicago Museum Studies 22, 2 (1996), pp. 180-95, fig. 1. The Art Institute of Chicago: Twentieth-Century Painting and Sculpture, selected by James N. Wood and Teri J. Edelstein (Art Institute of Chicago, 1996), p. 85, ill.
Van Gogh made more than 800 paintings using oil paints. Starry Night is an example of an oil painting van Gogh made on a canvas. Van Gogh also painted with watercolors. One of his earliest watercolor pieces was Coalmine in the Borinage, painted in 1879.an Gogh's early paintings, such as The Potato Eaters, were very dark and serious. When he moved to Paris in 1886, he was influenced by the art of Impressionists and Neo-Impressionists who were exhibiting there, as well as by Japanese prints.