Now showing items 31-40 of 89
Purification of RNA polymerase from actinomycin producing and nonproducing cells of Streptomyces antibioticus
(Elsevier, 1979-11)
DNA-dependent RNA polymerase has been purified approximately 700-fold from 12-h-old cells of Streptomyces antibioticus and 400-fold from 48-h cells. Both enzymes appear nearly homogeneous as judged by sodium dodecyl ...
Toward adaptive (computer-based) hospital care systems that can grow and improve as a function of user participation
(Elsevier, 1979-05)
This paper describes a computer-based system that would allow doctors, patients, nurses, researchers and experts to participate in medical care in ways that will enhance the usefulness of the system, and will allow the ...
Age-dependent changes in the specificity of tRNA methyltransferases in the cerebellum of the icteric and nonicteric Gunn rat
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1979-10)
The activity of tRNA methyltransferases present in the cerebellum of 6- and 21-day-old nonicteric and icteric Gunn rats was compared using purified E. coli tRNAs as substrates. At 6 days the tRNA methyltransferases of the ...
Examination of the itch response from the raphides of the fishtail palm Caryota mitis
(Elsevier, 1979-04)
The raphides in the mature fruit of the fishtail palm Caryota mitis Lour. were isolated by mechanical separation. These were shown by X-ray crystal analysis to be calcium oxalate monohydrate (Whewellite). The application ...
Explant culture of adult goldfish retina: A model for the study of CNS regeneration
(Elsevier, 1979-01-26)
Conditions are described for culture of retinal explants of adult goldfish which favour outgrowth of neuritic processes onto a substratum. A growth index to quantitate the outgrowth was developed. If the optic nerve is ...
H-2 and Background influences on tissue grafts across the H-Y barrier
(Springer-Verlag; Springer-Verlag New York Inc., 1979-12)
Male liver was grafted to kidney beds in syngeneic female mice. Relative influences of H-2 haplotype, genetic background or interaction of H-2 haplotype with genetic background on anti-H-Y response were evaluated using 27 ...
Immobilized glucose oxidase and -amino acid oxidase: A convenient method for the purification of flavin adenine dinucleotide and its analogs
(Elsevier, 1979-05)
The preparation of flavin adenine dinucleotide-affinity columns employing glucose oxidase and -amino acid oxidase covalently linked to Sepharose-4B is described. Both immobilized enzymes have very good long-term stabilities, ...
Stress induced Straub tail elevation further behavioral evidence in rats for the involvement of endorphins in stress
(Elsevier, 1979-08)
Adult male Sprague-Dawley rats briefly immersed in cold water and forced to swim showed Straub tail elevation, a typical sign of opiate stimulation, upon removal. The presence of Straub tail was a function of degree of ...
Ultra high-speed transaxial image reconstruction of the heart, lungs, and circulation via numerical approximation methods and optimized processor architecture
(Elsevier, 1979-02)
A high temporal resolution scanning multiaxial tomography unit, the Dynamic Spatial Reconstructor (DSR), presently under development will be capable of recording multiangular X-ray projection data of sufficient axial range ...