Now showing items 21-30 of 426
Flow equations for graphite
(Elsevier, 1976)
In analyzing erosion of graphite at high strain rate (~107 sec-1) and temperature (~4000[deg]C), it is necessary to have some approximation for the constitutive equation. Data for graphite from static and low strain rate ...
Synthesis of [4.2]cyclophanes
(Elsevier, 1978)
Vinyl -xylylene cross-dimerizes with other xylylene-type intermediates to yield cycloadducts of the [8+6] and [6+6] type. This reaction provides a simple entry to the [4.2]paracyclophane system as well as the analogous ...
Heat capacity of Th(NO3)4[middle dot]5H2O from 5 to 350 K
(Elsevier, 1976-01)
The heat capacity of crystalline Th(NO3)4[middle dot]5H2O has been determined by adiabatic calorimetry primarily to enable evaluation of the standard partial molar entropy and heat capacity of aqueous thorium(IV) ion. No ...
Optically detected zero field magnetic resonance of phosphorous activated alkali halide crystals
(Elsevier, 1977-10-15)
Optically detected zero field magnetic resonance (ODMR) has been utilized to obtain the fine structure parameters |D| and |E| of the phosphorescent color center in phosphorous activated potassium chloride and bromide single ...
Extraction, separation and labeling with 14 C-glucose of hela cell polyglucose, RNA and DNA and comparison of the molecular weights and buoyant densities of polyglucose from poliovirus-infected and noninfected cultures
(Wiley Subscription Services, Inc., A Wiley Company, 1970-01)
The aqueous phase of phenol extracts of HeLa cells contains polyglucose (CHO) n , RNA, and DNA. These macromolecules were precipitated together and removed from 50% (v/v) ethanol solutions with a stirring rod. The viscous ...
Stimulated phosphorylation of non-histone phosphoproteins in SV-40 transformed WI-38 human diploid fibroblasts
(Elsevier, 1975-08-06)
Because the phosphorylation of non-histone proteins has been suggested to play a role in the regulation of eukaryotic gene transcription, we have compared the phosphorylation of these proteins in normal and SV-40 transformed ...
The inhibition of the fatty acid oxygenase of sheep vesicular gland by antioxidants
(Elsevier, 1973-02-14)
Antioxidants inhibit the fatty acid oxygenase of sheep vesicular gland and soybean lipoxygenase in an instantaneous, reversible manner. Their inhibitory effectiveness was not related to their traditional antioxidant potencies ...
Structural studies of capsular polysaccharide of type XII diplococcus pneumoniae
(Elsevier, 1974-10)
The capsular polysaccharide of Diplococcus pneumoniae Type XII contains residues of -glucose and -galactose in a molar ratio of 2:1. The methylated polysaccharide yielded upon hydrolysis 2,3,4,6-tetra- and 3,4,6-tri-O-me ...
The correspondence between the molecular orbital and differential ionization energies methods
(Springer-Verlag, 1970-01)
The correspondence between Self-Consistent Hückel MO methods and Differential Ionization Energies methods is discussed in terms of the approximations used for the diagonal matrix elements. The two methods are shown to be ...
Electron paramagnetic resonance studies on nitrogenase. III. Function of magnesium adenosine 5'-triphosphate and adenosine 5'-diphosphate in catalysis by nitrogenase
(Elsevier, 1973-02-22)
The electron paramagnetic resonance spectra of azoferredoxin and molybdoferredoxin, components of the nitrogenase of Clostridium pasteurianum, disappear when the proteins are oxidized by certain dyes. When molybdoferredoxin ...