Now showing items 31-37 of 37
Simplified method of making alginate-polylysine microcapsules for hybridoma cell culture using RPMI 1640 medium
(Kluwer Academic Publishers; Science & Technology Letters ; Springer Science+Business Media, 1990-09)
The method of making alginate-poly-L-lysine microcapsules for hybridoma cell culture can be simplified by cultivating the cells in RPMI 1640 medium. Phosphate concentration in RPMI 1640 medium is sufficiently high to ...
Charge-density domains in photoexcited quantum-well structures
(Elsevier, 1990-04-01)
We present theoretical and experimental results on the dielectric response of an electron-hole plasma confined to a quantum-well. Hartree calculations reveal large nonlinearities in the screening properties which, when ...
A new and novel approach towards the synthesis of 3'-deoxy-3'-hydroxymethyl ribofuosides
(Elsevier, 1990)
The synthesis of 1,2,5 tri--benzoyl-3-deoxy-3-[(benzyloxy)methyl]-[alpha],gb-D-ribofuranose () from 1,2 --isopropylidene-[alpha]-D-xylofuranose () has been achieved in an overall yield of 37%. Compound is a properly ...
1,2-Addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones and regiospecific generation of cyclic silyl enol ethers through brook rearrangement of the 1,2-addition products
(Elsevier, 1990)
A highly convenient two-step sequence for the regiospecific synthesis of cyclic silyl enol ethers has been developed involving the 1,2-addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones ...
Heat capacity and thermodynamic properties of deuterated ammonium hexafluorophosphate ND4PF6 from 5.8 K to 347 K
(Elsevier, 1990-10)
The heat capacity of deuterated ammonium hexafluorophosphate ND4PF6 was measured from 5.8 K to 347 K by adiabatic calorimetry. Two [lambda]-shaped anomalies were found in the curve for heat capacity against temperature. ...
Thermodynamics of copper sulfides IV. Heat capacity and thermodynamic properties of Cu1.90S from 5 K to 750 K, Cu1.95S from 5 K to 1000 K, Cu1.98S from 300 K to 1000 K, and Cu1.995S from 300 K to 750 K
(Elsevier, 1990-11)
The heat capacities of Cu1.90S, Cu1.95S, Cu1.98S, and Cu1.995S have been measured by adiabatic-shield calorimetry. All samples have been characterized by powder X-ray diffraction in the temperature interval studied. A ...
Thermodynamic properties of ammonium halogen stannates I. Heat capacity and thermodynamic functions of deuterated ammonium hexachlorostannate (ND4)2SnCl6 from 5.9 to 347 K
(Elsevier, 1990-02)
The heat capacity of deuterated ammonium hexachlorostannate (ND4)2SnCl6 was measured from 5.9 to 347 K by adiabatic calorimetry. The heat capacity is characterized by a [lambda]-shaped anomaly that reaches its maximum Cp,m ...