Now showing items 21-30 of 46
Prediction and measurement of initial flocculation rates in quiescent media
(Elsevier, 1985-12)
Initial flocculation rate experiments were carried out with a dilute suspension of bidisperse polystyrene spheres (0.166 and 0.255 [mu]m in radius) under normal gravity conditions and, using a centrifuge, under conditions ...
Fischer-tropsch synthesis on charcoal-supported molybdenum: The effect of preparation conditions and potassium promotion on activity and selectivity
(Elsevier, 1985)
High dispersion and high activity charcoal-supported molybdenum catalysts were prepared using incipient wetness and equilibrium adsorption methods. Activities and selectivities of these catalysts were tested after reducing ...
Comparison of the 5' regions of human and mouse carbonic anhydrase II genes and identification of possible regulatory elements
(Elsevier, 1985-12-18)
The nucleotide sequence of the 5' region of the human carbonic anhydrase II gene has been determined. This sequence begins 643 base pairs upstream from the ATG start site and continues through exon 1, intron 1, exon 2 and ...
Effect of dietary cholesterol on erythrocyte peroxidant stress in vitro and in vivo
(Elsevier, 1985-07-31)
The effect of dietary variation of plasma cholesterol concentrations on the susceptibility of erythrocytes to in vitro and in vivo peroxidant stress was studied in rats. Malonyldialdehyde, produced in vivo (endogenous ...
Optical probe study of a nonentangling macromolecule solution--bovine serum albumin: Water
(Elsevier, 1985-06)
The diffusion coefficient D of polystyrene latex spheres in bovine serum albumin:water was studied as a function of protein concentration c for 0 c D fails by as much as 25 to 50%, D being larger than predicted from the ...
Quarter field resonance and integer-spin/half-spin interaction in the EPR of Thermus thermophilus ferrodoxin. Possible new fingerprints for three iron clusters
(Elsevier, 1985-04-29)
We describe two new characteristics of the EPR of the seven-iron containing ferrodoxin from Thermus thermophilus. First, the reduced state of the 3Fe center, which has traditionally been considered to be EPR-silent, has ...
Stereospecific synthesis of [gamma]-butyrolactones from acyclic vinyl sulfoxides: an asymmetric synthesis of optically pure oak lactones
(Elsevier, 1985)
The sulfoxide-directed lactonization of several trisubstituted vinyl sulfoxides with dichloroketene proceeds in a completely stereospecific manner. The lactonization of (E) -3 (R) --tolylsulfinyloctene occurs with complete ...
Function of ribosomes and glutamyl-tRNA isoacceptors in protein synthesis in regenerating skeletal muscle
(Elsevier, 1985-04-19)
Ribosomes from 8-day-regenerating rat skeletal muscle have been shown to be more active in poly(U)-directed polyphenylalanine synthesis than ribosomes from control muscle. This difference persists after salt washing of the ...
Fischer-Tropsch synthesis on bimetallic ruthenium-gold catalysts
(Elsevier, 1985-06)
The effect of Au in the behavior of Ru as a Fischer-Tropsch catalyst was studied. Two series of catalysts were investigated, one supported on SiO2 and the other on MgO. Au did not seem to alter the product distribution on ...
Protein synthesis by hepatic mitochondria isolated from carbon tetrachloride-exposed rats
(Elsevier, 1985-03-20)
Hepatic mitochondria isolated from rats 40 h after dosage with 1.1 ml/kg CCl4 are uncoupled and display structural damage. Mitochondrial function returns during hepatic recovery. Because the products of mitochondrial protein ...