We present, a systematic theoretical study of the adsorption of Ga, In and N over GaAs (110) surfaces based on parameter-free, self-consistent total energy and force calculations using the density functional theory. We analyzed the changes in the bond-lengths and in the bond-angles before and after deposition, as well as the total energy behaviour with the adsorbate chemical potential variation...

Germination energy of cottonwood seed decreased gradually as moisture stress increased from 0.0 to 10.0 atm; 15.0 atm inhibited germination except at 32 and 38 C. Temperature extremes of 15 and 38 C drastically reduced germination energy, and the reductive effect of 38 C was particularly marked after storage. Only 15-atm moisture stress or 15 C greatly reduced total germination. Germination und...

Preliminary phases were determined by the application of the isomorphous replacement method at low and intermediate resolution for structure factor amplitudes collected from crystals of large and small ribosomal subunits from halophilic and thermophilic bacteria. Derivatization was performed with dense heavy atom clusters, either by soaking or by specific covalent binding prior to the crystalli...