Now showing items 11-20 of 3243
THE LUNAR EXOSPHERE
The structure and sequence of the single calmodulin gene of Drosophila melanogaster
The work described involves the isolation and characterization of the gene encoding the calmodulin protein in the dipteran species, Drosophila melanogaster. The two major protein coding exons, designated 2 and 3, had been ...
Geophysical study of deep-crustal structure: Mid-Atlantic passive continental margin
Migration results of two multi-channel vertical incidence reflection seismic dataset offshore Virginia are presented. A new velocity model derived from multi-channel and wide-angle reflection/refraction data is developed ...
Energy levels in light nuclei
The recent application of the shell model theory to the energy level structure of light nuclei has made apparent a lack of experimental data concerning these nuclei. The impossibility of accurately criticizing the theory ...
A theoretical study of cyanide on alkali-halide and alkali-metal surfaces using density functional theory
Many interesting physical phenomena have been observed in electron-stimulated desorption studies of the cyanide molecule on alkali halide and alkali metal surfaces. We have performed a theoretical investigation of the ...
A theoretical study of the effects of an external electric field on adsorbate-surface systems
We have used the density functional ab initio method to conduct investigations on the effects of an applied electric field on the chemisorption bonds of adsorbate-surface systems, and on the reactivity of a gas phase ...
Structure and stratigraphy of lower Paleozoic rocks, Doonerak Window, central Brooks Range, Alaska
Deep structural levels of the Brooks Range thrust belt, and a unique sequence of lower Paleozoic rocks (informally named the Apoon assemblage) are exposed in a structural high near Mount Doonerak. Previous workers interpreted ...
Estimating subsurface structure through gravity and gravity gradiometry inversion
We use gravity to estimate rifted margin deep structure with an inversion method that links parameters in the shallow parts of the model to those in the deep parts through an isostatic, uniform extension model. The method ...
Additional insights into the structure and function of adenosine deaminase
Adenosine deaminase is a key enzyme in purine catabolism. The elucidation of the crystal structure and recent analysis of site-directed mutants have provided details on the structure and function of the enzyme. The studies ...
A survey of stars and compact sources in the Orion Nebula
Four monochromatic (H$\alpha$, (N II), (O III) and 5500 A continuum) mosaics of the inner region of the Orion Nebula have been made by using data obtained with the Wide Field Planetary Camera 2 of the Hubble Space Telescope. ...