DNA is generally considered to be chemically rather inert, but self-cleaving DNA molecules have recently been isolated from in vitro selection experiments; their properties advance the idea that, like RNA, DNA can serve as both a catalyst and an information storage medium.

GRAY, WILLIAM D. (The Ohio State University, Columbus), PATRICK V. C. PINTO, AND S. G. PATHAK. Growth of fungi in sea water medium. Appl. MNicrobiol. 11:501-505. 1963.-The effect of sea water on protein synthesis and growth of some species of Fungi Imperfecti was investigated. The dry weight of mycelia was greater from sea water medium than from distilled water medium in most instances; however...

To resolve the problems that the local motions reduce the global motion estimation accuracy and traditional Gary Projection Algorithm could not deal with rotation motion, a real-time electronic image stabilization motion estimation method based on Fast Sub-block Gray Projection Algorithm is proposed. In the method, each image is divided into a number of sub-blocks, and sub-blocks are sifted acc...

In this study, the vertical, transverse and oblique diameters of the spinal cord segments (C1, C6, C12, C18, T1, T4, L1, L4, L6 and L8) and the ratio of gray matter to white matter in chick (l month) and adult (18 months) male ostriches, each group consisted of 3 animals, were measured with standard micrometric method using 6 μm thick sections by light microscope. With advancement of age, the r...

We study the effect of homogenization on flame propagation in periodic excitable media, when the width of the flame is much smaller than the characteristic size of the heterogeneities.

In a previous paper the relative rates of absorption of acetic acid and propionic acid through the rumen wall were discussed (Gray, 1947a). While the manuscript was being prepared, Danielli, Hitchcock, Marshall & Phillipson (1945) described a series of experiments from which it was evident that the lower homologues of the fatty acids are absorbed through the rumen wall at different rates when t...

We construct two classes of Gray maps, called type-I Gray map and type-II Gray map, for a finite p-group G. Type-I Gray maps are constructed based on the existence of a Gray map for a maximal subgroup H of G. When G is a semidirect product of two finite p-groups H and K, both H and K admit Gray maps and the corresponding homomorphism ψ : H −→ Aut(K) is compatible with the Gray map of K in a sen...

We propose a triode structure for achieving submillisecond grayto-gray response time in a double fringing-field-switching (DFFS) cell. The bright and dark states are obtained by applying a fringing field and a vertical field, respectively. The simulated averaged grayscale rise time is 793 μs and decay time is 478 μs. This triode DFFS mode enables conventional nematic LCDs for color sequential d...