Abstract We apply a new tool that is the Maxwell-Fredholm equations, to study collision of an electromagnetic pulse with flat surface separation between two parts torus-shaped artefact highly anisotropic refractive index forces it move over its surface. find possible establish relationship different angles involved depending on parameters toroidal coordinates, which we call particularization Sn...

The hdc genes encoding the inducible pyridoxal-P-dependent histidine decarboxylase (HisDCase) of Klebsiella planticola and Enterobacter aerogenes were isolated, sequenced, and expressed in Escherichia coli under control of the lac promoter, and the overproduced enzymes were purified to homogeneity from the recombinant host. Formation of inclusion bodies during synthesis of the E. aerogenes enzy...

14A sample of thymidine was kindly furnished by Dr. E. E. Snell. 16 Stokstad, E. L. R., J. Biol. Chem., 139, 475 (1941). 16 Stokes, J. L., J. Bact., 48, 201 (1944). 17 Snell, E. E., and Mitchell, H. K., PROC. NATL. ACAD. ScI., 27, 1 (1941). 18 Barnes, F. W., and Schoenheimer, R., J. Biol. Chem., 151, 123 (1943). 19 Sonne, J. C., Buchanan, J. M., and Deluva, A. M., Ibid., 173, 69 (1948). 2 Bucha...

Studies of the mTOR pathway have prompted speculation that diminished mTOR complex-1 (mTORC1) function may be involved in controlling the aging process. Our previous studies have shown diminished mTORC1 activity in tissues of three long-lived mutant mice: Snell dwarf mice, growth hormone receptor gene disrupted mice (GHRKO), and in this article, mice deficient in the pregnancy-associated protei...

Williams and Fieger (1946) found that Lactobacillus casei could be grown continuously in a medium containing only traces of biotin if oleic acid was present at a suitable concentration. Trager (1947) observed a similar effect with a neutral oil (designated FSF) obtained from hydrolyzed horse plasma. This material, which had some biotin activity for chickens as well as for bacteria, permitted fu...