Now showing items 21-30 of 63
Matrix elements for configuration d4s in a weak octahedral field using Racah methods
(Elsevier, 1969-07)
The general formula for matrix elements of configuration d4s in a weak crystalline field have been derived by means of Racah algebra. These have been explicitly applied to the case of d4s. The tabulated reduced matrix ...
Influence of counterions on the helical conformations of charged polypeptide chains
(Wiley Subscription Services, Inc., A Wiley Company, 1969-11)
No Abstract.
A new, sensitive determination of phosphate
(Elsevier, 1969-07)
A new method for the determination of phosphorus using Triton X-100 instead of reducing agents is more sensitive than procedures described earlier. Organic phosphate esters do not appear to interfere with the determination ...
Electron diffraction study of gaseous tetrahydrofuran
(Elsevier, 1969)
The gas phase molecular structure of tetrahydrofuran has been reinvestigated. Experimental diffraction intensities are well accounted for by a freely pseudo-rotating molecule. The mean value of the pseudo-rotational puckering ...
Metabolism of dehydroepiandrosterone and dehydroepiandrosterone sulfate in tissue extracts of rabbit ovaries
(Elsevier, 1969-02)
The simultaneous incubation of 3H-dehydroepiandrosterone sulfate and 14C-dehydroepiandrosterone by soluble and microsomal extracts of rabbit ovaries was investigated. 3H-dehydroepiandrosterone sulfate was converted to ...
Purification of a phospholipase C froM Bacillus cereus
(Elsevier, 1969-12-17)
Phospholipase C activity present in the growth medium of Bacillus cereus was purified 20-fold by chromatography on polyethyleneimine-cellulose columns, or by treatment with protamine sulfate and subsequent chromatography ...
Low-angle X-ray diffraction patterns from a variety of myelinated nerves
(Elsevier, 1969-04-15)
Low-angle X-ray diffraction patterns from a variety of myelinated nerves are described. Different kinds of patterns are obtained from peripheral nerve and central nervous system myelin. The intensity variation between the ...
Hydrostatic pressure effects on rabbit and echinoderm myosin ATPase
(Elsevier, 1969-06)
When saturated with ATP, sea cucumber myosin hydrolyzes ATP about 15 times more slowly than rabbit myosin, as expected from the slower contraction time of the muscle. The Arrhenius plots coincide at low temperatures, but ...
Heat capacity and vapor pressure of crystalline bis(benzene)chromium. Third-law entropy comparison and thermodynamic evidence concerning the structure of bis(benzene)chromium
(Elsevier, 1969-05)
Heat capacity measurements from 5 to 350[deg] K and vapor pressure measurements on bis(benzene)chromium together with the published frequency assignments permit a correlation between the third-law and spectroscopic entropies. ...
Enzymatic synthesis of carbonic anhydrases by human reticulocytes
(Elsevier, 1969-11-19)
Human reticulocyte-rich blood incubated 4h at 37[deg] in O2-CO2 (95:5, v/v) with 3H- or 14C-tagged amino acids revealed incorporation of the label into carbonic anhydrase I and II, Hb A, and in one patient, into Hb S. No ...