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  • 1
    Electronic Resource
    Electronic Resource
    The pharmacokinetics of cefixime in the fasted and fed state (1988)
    Springer
    European journal of clinical pharmacology 34 (1988), S. 525-528 
    Details
    ISSN: 1432-1041
    Keywords: cefixime ; oral cephalosporin ; absorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Twenty healthy adult volunteers received single 400 mg oral doses of cefixime in an open, randomized, crossover study, administered twice in the fasted state and twice with a standard breakfast. The study design allowed both an evaluation of a potential food effect and also an analysis of both intrasubject and intersubject variability in the fasted and fed state. There was a small but significantly longer (∼1 h) time to peak concentration when the drug was given with food. Peak serum concentrations, area under the curve, and 24 h urinary recovery values were unchanged in the fed and fasted states. The terminal elimination half-life of the drug given after a meal (3.6 h) was slightly longer than that observed after dosing in the fasting condition (3.5 h). The intrasubject and intersubject variabilities were less than 12% and 33% respectively, for both area under the curve and 24 h urinary recovery, and were virtually the same for the fasted and fed occasions. Therefore, the drug may be administered with or without food.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01046715
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of Alumina Scales Formed During Isothermal and Cyclic Oxidation of Plasma-Sprayed TBC Systems at 1150°C (1999)
    Springer
    Oxidation of metals 52 (1999), S. 31-76 
    Details
    ISSN: 1573-4889
    Keywords: SCALE FRACTURE ; OXIDE SCALES ; ALUMINA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The isothermal- and cyclic-oxidation behavior ofthermal barrier coating (TBC) systems consisting ofvacuum plasma-sprayed (VPS) Ni-22Cr-10Al-1Y (wt.%) bondcoatings and air plasma-sprayed (APS)Y2O3-stabilized ZrO2 (YSZ) top coatings (onsingle-crystal superalloys) was investigated. Themicrostructures, flaw contents, and fracture behavior ofthe Al2O3 scales formed duringoxidation testing at 1150°C were characterized (by analysis of coating andscale fracture surfaces and metallographic crosssections). Significant localized fracture and bucklingof the Al2O3 scales that formedalong the bond-coat-top-coat interfaces were observed after cyclic oxidationof TBCs. However, substantial amounts of localized scaledamage did not induce rapid TBC failure. Decohesion ofthe columnar alumina scales on the rough bond-coat surfaces occurred by both internalAl2O3 fracture (parallel to themetal surface) and oxide-metal delamination. There weremicrostructural indications ofAl2O3 scale crack healing bysintering into planar arrays of voids. Alumina scales that formed onconvex NiCrAlY surfaces (with radii of 50 μm or less)often contained significant amounts of internal voids(along grain boundaries) after cyclic oxidation, whereas scales formed by isothermal oxidationcontained few visible voids. Accelerated void growth inAl2O3 scales on the irregularNiCrAlY surfaces appeared to be creep-related and wasattributed to the synergistic effects of geometric and thermalstresses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018870923397
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    Paper (German National Licenses)
    Fulltext
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