39 research outputs found

    In vitro susceptibility of gram-positive cocci to paldimycin

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    Paldimycin (U-70138F) is a new antimicrobial agent with activity against gram-positive cocci. Clinical isolates of staphylococci and streptococci were tested. MICs were higher in Mueller-Hinton broth than in nutrient broth. Change in pH had minimal effect on the MICs in either broth. When inoculum size was varied, an inoculum effect was observed. The gram-positive cocci tested were generally more susceptible to paldimycin than to vancomycin.</jats:p

    Comparison of enzyme-multiplied immunoassay technique with fluorescence polarization immunoassay for determination of gentamicin and tobramycin levels in serum

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    We assayed serum gentamicin and tobramycin specimens by the enzyme multiplied immunoassay technique (Syva EMIT) and the fluorescence polarization immunoassay (Abbott TDx). When interassay and intraassay control samples were evaluated, both methods gave an overall coefficient of variation of less than +/- 10%. Using patient serum samples, we obtained excellent correlation with both methods in the assay of gentamicin (correlation coefficient, 0.985) and tobramycin (correlation coefficient, 0.982).</jats:p

    Water-table elevations on the Hanford Site, 1990

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    The Pacific Northwest Laboratory prepared water-table maps of the US Department of Energy&#x27;s Hanford Site for June 1990 from water-level elevations measured in 224 wells across the Hanford Site. The greatest changes in the elevation of the water table at Hanford occurred beneath the decommissioned U Pond, 200-East Area, the 100-N Area, the 1100 and 3000 Areas, and near the Columbia River. The elevation of the ground-water mound beneath the decommissioned U Pond continued to decline, decreasing as much as 0.8 m (2.6 ft) between December 1989 and December 1990. This decline has been observed in wells in much of the adjacent 200-West Area and is primarily the result of continued dissipation of the ground-water mound beneath U Pond since it was deactivated in 1984. 21 refs., 12 figs

    Comparison of fluorescence polarization immunoassay and bioassay of vancomycin

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    Human serum samples were analyzed for vancomycin concentrations by two different methods: the fluorescence polarization immunoassay and the disk plate bioassay. Each assay method offered acceptable precision. The correlation between both assay methods was excellent (correlation coefficient = 0.985). Excluding technical time, the bioassay was the least expensive method to perform but was more labor intensive than the fluorescence polarization immunoassay.</jats:p
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