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.
Franz Kline was an American abstract painter and one of the pioneers of Abstract Expressionism. His signature black-and-white abstractions were inspired by Japanese calligraphy, and inspired a later generation of artists who created Minimalism.lmost all the artists who would later become abstract painters in New York in the 1940s and 1950s were stamped by the experience of the Great Depression, and they came to maturity whilst painting in styles influenced by social realism and the Regionalist movement.