5,161 research outputs found
Review about "Signature, nullity and determinant of checkerboard colorable virtual links" by Im Y.H. - Lee K. - Lee S.
No full textThe paper under review presents a generalization to checkerboard colorable virtual links of the
definition of (modified) Goeritz matrix for a classical link in S3
Determination of Thermal Response on Mold Surface and Recommendation of Feasible Heating Time and Gas Flow Rate for a Circular Cavity by Gas Preheating
No full textCharacterization of a pyridine-degrading branched Gram-positive bacterium isolated from the anoxic zone of an oil shape column
No full textFrom the anoxic zone of an oil shale leachate column three pyridine-degrading bacterial strains were isolated. Two strains were Gram-negative facultative anaerobic rods and one strain was a branched Gram-positive bacterium. The branched Gram-positive strain had the best pyridine-degrading ability. This organism was aerobic, non-motile, catalase positive, oxidase negative, and had no flagellum. The G+C content of the DNA was 66.5 mol%. The major menaquinone was MK-8(H2). The main cellular fatty acids were saturated and monounsaturated straight chains. This organism contained mycolic acid, meso-diaminopimelic acid, arabinogalactan and glycolyl residues in the cell wall. Due to morphological, physiological and chemotaxonomic characteristics this strain was placed in the genus Rhodococcus. The optimum culture conditions were as follows: temperature 32°C, pH 8.0 and 0.1% v/v of pyridine as sole carbon, energy and nitrogen source. Utilization of pyridine by a batch fermentor culture of Rhodococcus sp. was characterized by a specific growth rate of 0.13 h, growth yield of 0.61 mg cell·mg pyridine and a doubling time of 5.3 h
Frequency-shaped Optimal Control of Unbalance Response in Active Magnetic Bearing System
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Application of multiplex PCR using species specific primers within the 16S rRNA gene for rapid identification of Nocardioides strains
No full textFor the rapid identification of Nocardioides strains, multiplex PCR, using 16S rDNA as target gene, was used and its value was evaluated. Forward primers specific for Nocardioides albus, Nocardioides jensenii, Nocardioides plantarum and Nocardioides simplex, among the five validly described Nocardioides species, were designed from the alignment of 16S rDNA sequences. Nocardioides luteus has been shown to be a member of the same species as N. albus by recent molecular systematic studies and preliminary DNA-DNA relatedness tests, Therefore, Ri. albus and N. luteus were considered as members of the same species in this study. Each primer was found to be species-specific by specificity testing. N. albus NSP01(T), Ri. jensenii NSP19(T), Ri. plantarum NSP21(T) and Ri. simplex NSP22(T) could be clearly differentiated by PCR products characteristic for each species in the multiplex PCR assay. N. luteus gave an identical result to Ri. albus NSP01(T). The additional 17 strains of Ri. albus and the additional four strains of RI. simplex gave PCR products identical to those of N. albus NSP01(T) and N. simplex NSP22(T), respectively. Multiplex PCR was found to be rapid, species-specific and reproducible. The technique evaluated in this study proved to be effective for rapidly identifying Nocardioides strains to species level
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