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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 40 (1892), S. 89-98 
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 42 (1893), S. 257-272 
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 33 (1889), S. 493-510 
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Annalen 55 (1902), S. 594-596 
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary For successful prophylaxis of postoperative infections in colorectal surgery the administered antibiotic must reach sufficiently high concentrations in plasma and gut wall. Therefore, in ten patients receiving 400 mg enoxacin orally about 2 h prior to operation (in addition to their routine perioperative intravenous prophylaxis with amoxicillin and clavulanic acid) concentrations of enoxacin were determined by HPLC in plasma (samples were taken at the beginning of operation, time of tissue sampling and each hour during the operation) and in gut wall. We found the following plasma concentrations (mean ± S.D.): beginning of operation 2.53 (±1.07) mg/l, 1 h later 2.08 (±0.82) mg/l, 2 h later 1.60 (±0.65) mg/l. At the time of tissue sampling (on an average 185 min after the enoxacin dose) the plasma concentration was 2.27 (±1.02) mg/l, the gut wall concentration was 3.74 (±1.58) mg/kg, the ratio between the two concentrations was 1.70 (±0.27). It seems warranted to study orally administered enoxacin (in combination with an antibiotic against anaerobes) in prophylaxis of infections after colorectal surgery.
    Notes: Zusammenfassung Ein zur Infektionsprophylaxe in der Dickdarmchirurgie verwendetes Antibiotikum muß während der Operation ausreichend hohe Konzentrationen im Plasma und in der Darmwand erreichen. Wir bestimmten daher bei zehn Patienten, die zusätzlich zur routinemäßigen perioperativen intravenösen Prophylaxe mit Amoxicillin und Clavulansäure ca. 2 Stunden vor Operationsbeginn 400 mg Enoxacin oral erhalten hatten, mittels HPLC Enoxacin-Konzentrationen im Plasma (zu Operationsbeginn, zum Zeitpunkt der Entnahme der Dickdarmprobe sowie jede Stunde bis zum Operationsende) und in der Dickdarmwand. Im Plasma fanden sich folgende Konzentrationen (Mittelwert ± Standardabweichung): zu Operationsbeginn 2,53 (±1,07) mg/l, eine Stunde nach Operationsbeginn 2,08 (±0,82) mg/l, 2 Stunden nach Operationsbeginn 1,60 (±0,65) mg/l. Zum Zeitpunkt der Präparatentnahme (durchschnittlich 185 Minuten nach Enoxacin-Gabe) betrug die Plasmakonzentration 2,27 (±1,02) mg/l, die Konzentration in der Darmwand 3,74 (±1,58) mg/kg, das Verhältnis der beiden Konzentrationen 1,70 (±0,27). Nach diesen Ergebnissen erscheint es berechtigt, Untersuchungen zur oralen Anwendung von Enoxacin in Kombination mit einem Antibiotikum mit antianaerober Wirkung bei der Infektionsprophylaxe in der Dickdarmchirurgie durchzuführen.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Multimedia tools and applications 11 (2000), S. 9-33 
    ISSN: 1573-7721
    Keywords: multimedia server ; disk scheduling ; incremental scheduling ; SCAN algorithm ; mixed workload ; mixed traffic ; performance evaluation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In contrast to pure video servers, advanced multimedia applications such as digital libraries or teleteaching exhibit a mixed workload with massive access to conventional, “discrete” data such as text documents, images and indexes as well as requests for “continuous data”, like video and audio data. In addition to the service quality guarantees for continuous data requests, quality-conscious applications require that the response time of the discrete data requests stay below some user-tolerance threshold. In this paper, we study the impact of different disk scheduling policies on the service quality for both continuous and discrete data. We provide a framework for describing various policies in terms of few parameters, and we develop a novel policy that is experimentally shown to outperform all other policies.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 44 (1957), S. 630-631 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 330 (1988), S. 432-433 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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