Now showing items 11-20 of 67
Comparison of the phospholipid requirements and molecular form of CTP: Phosphocholine cytidylyltransferase from rat lung, kidney, brain and liver
(Elsevier, 1980-12-05)
The Cytidylyltransferase activity in fresh cytosol from different tissues of the rat was measured in the absence and presence of phosphatidylglycerol. In all cases addition of this lipid produced large increases in enzyme ...
NMR relaxivity changes in chloroplast suspensions. Effects of NH2OH and of treatments altering the redox state of the photosynthetic electron transport chain
(Elsevier, 1980-12-03)
Treatments (illumination, chemical oxidation or reduction) which are potentially capable of producing paramagnetic centers in chloroplast thylakoid membranes do not produce enhancements of the proton magnetic relaxivities ...
Rapid purification of yeast mitochondrial DNA in high yield
(Elsevier, 1980-12-11)
A procedure is presented for the rapid isolation of mitochondrial DNA (mtDNA) in high yield from Saccharomyces cerevisiae. Yeast cells, which may be grown to late stationary phase, are broken by a combination of enzymatic ...
Spectrophotometric determination of chromium as the chromium-peroxo-4-(2-pyridylazo)resorcinol complex
(Springer-Verlag, 1980-01)
Der ternäre Chrom-Peroxo-PAR-Komplex weist einen scheinbaren molaren Extinktionskoeffizienten von 6280 l · mol −1 · cm −1 auf, wenn er aus 0,1 M schwefelsaurer Lösung mit Ethylacetat extrahiert wird. Das Beersche Gesetz ...
Aromatic antimony compounds. Transition metal complexes of 2,5-dimethylstibacyclopentadienyl
(Elsevier, 1980-12-23)
Hydrostannation of 2,4-hexadiyne with dibutyltin dihydride gave 1,1-dibutyl-2,5-dimethylstannole, which was converted to 2,5-dimethylstibacymantrene and to bis(2,5-dimethylstibacyclopentadienyl)iron.
Reduced lateral mobility of a fluorescent lipid probe in cholesterol-depleted erythrocyte membrane
(Elsevier, 1980-03-27)
The effect of cholesterol depletion of the human erythrocyte membrane on the lateral diffusion rate of a fluorescent lipid probe is reported. At low temperatures (-5 to 5[deg]C), the diffusion of the probe is 50% slower ...
Identification and characterization of the adenosine 3',5'-cyclic monophosphate binding proteins appearing during the development of Dictyostelium discoideum
(Elsevier, 1980-05-07)
A photosensitive, radioactive analogue of cyclic adenosine monophosphate, 8-azido-adenosine 3',5'-[32P]monophosphate (8-N3-cyclic AMP), was used to label the cyclic AMP binding proteins of Dictyostelium discoideum. During ...
Measurement of single chain neutron scattering in concentrated polymer solutions Work supported in part by the National Science Foundation Grants Nos. DMR-76-80152 and DMR 76-23697.
(John Wiley & Sons, Inc., 1980-04)
For some time there have been measurements of single-chain form factors for small-angle neutron scattering (SANS) in bulk polymers and in concentrated solutions. These were done by mixing a fraction of completely deuterated ...
Direct determination of selected metals in refractory powder micro samples with exploding thin film excitation
(Elsevier, 1980)
The direct determination of metallic elements in powder micro samples is explored. Emphasis is placed on refractory materials prepared as alcoholic suspensions of their powders. Silver thin films are vacuum deposited on ...
Percolation analog for a two-component liquid-vapor system
(Elsevier, 1980-10-15)
Generalized site-bond percolation theory is utilized to provide an analog for a two-component liquid-vapor system in the phase transition region. The percolation model exhibits a behaviour typical of a non-ideal real ...