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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 18 (1985), S. 983-986 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 71 (1997), S. 1798-1800 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Temperature fields in microdevices made from silicon-on-insulator (SOI) wafers are strongly influenced by the lateral thermal conductivity of the silicon overlayer, which is diminished by phonon scattering on the layer boundaries. This study measures the thermal conductivity of single-crystal silicon layers in SOI substrates at temperatures between 20 and 320 K using Joule heating and electrical-resistance thermometry in microfabricated structures. Data for layers of thickness between 0.4 and 1.6 μm demonstrate the large reduction resulting from phonon-boundary scattering, particularly at low temperatures, and are consistent with predictions based on the phonon Boltzmann transport equation. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1076
    Keywords: Electron microscopy ; Liver ; MCAD deficiency ; Reye syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Inborn errors involving the oxidative metabolism of fatty acids may present clinically with a Reye syndrome-like picture. This case report of a patient with medium-chain acyl CoA dehydrogenase (MCAD) deficiency illustrates that electron microscopy may help to differentiate this disorder from Reye syndrome even if a liver biopsy is performed in a patient who recovered from an acute metabolic decompensation. Together with this case, a review of the few reports in the literature of pathological findings in MCAD deficiency is given. Changes uncharacteristic for Reye syndrome are a largedroplet steatosis and the presence of distinctive mitochondrial abnormalities on electron microscopy. The detection of an electron dense mitochondrial matrix and a widened space of inner mitochondrial membranes rules out Reye syndrome and is suggestive of a disorder of mitochondrial fatty acid oxidation.
    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: Zusammenfassung DieIn vitro-Aktivität von Ofloxacin und Ciprofloxacin wurde an fünf ausgewählten Gruppen von Bakterien aus klinischen Isolaten geprüft. Beide Antibiotika waren wirksam gegen 1.Staphylococcus aureus undStaphylococcus epidermidis, unabhängig von ihrer Resistenz gegen Methicillin und Gentamicin. 2. GegenHaemophilus influenzae undNeisseria gonorrhoeae, unabhängig von β-Laktamase-Produktion; 3. gegen Stämme der Familie Enterobacteriaceae, die gegen die meisten oralen β-Laktame resistent waren, und 4. gegen die meisten Darmpathogene, einschließlich Campylobacter, Vibrio, Salmonella, Shigella und Yersinia. 5. Gegenüber Pseudomonas-Stämmen war Ciprofloxacin wirksamer als Ofloxacin; die meisten Stämme vonPseudomonas aeruginosa undPseudomonas fluorescens waren empfindlich, die Stämme vonPseudomonas cepacia hingegen resistent.
    Notes: Summary Thein vitro activities of ofloxacin and ciprofloxacin were tested against five selected groups of clinical bacterial isolates. Both were active against 1)Staphylococcus aureus andStaphylococcus epidermidis, irrespective of their resistance to methicillin or gentamicin, 2)Haemophilus influenzae andNeisseria gonorrhoeae, irrespective of their β-lactamase production, 3) members of the Enterobacteriaceae family which were resistant to most oral β-lactams, and 4) most intestinal bacterial pathogens including Campylobacter, Vibrio, Salmonella, Shigella and Yersinia. 5) Ciprofloxacin was found more active than ofloxacin against Pseudomonas with most isolates ofPseudomonas aeruginosa andPseudomonas fluorescens susceptible, while those ofPseudomonas cepacia were resistant.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In einer noch nicht abgeschlossenen Placebo-kontrollierten Doppelblindstudie zum Vergleich von Ofloxacin und Amoxicillin wurden 32 erwachsene stationäre Patienten mit einem infektiösen Schub bei Bronchiektasie behandelt. Zufallsgemäß erhielten sie zehn Tage lang entweder 200 mg Ofloxacin oder 1 g Amoxicillin dreimal täglich oral verabreicht. In der Ofloxacingruppe (15 Patienten) wurde in 11 Fällen ein hervorragendes Therapieergebnis (klinische Heilung), bei drei Patienten ein befriedigendes Therapieergebnis (klinische Besserung oder frühe Reinfektion) und in einem Fall Therapieversagen beobachtet. In der Amoxicillingruppe (17 Patienten) sprachen sechs Patienten ausgezeichnet auf die Therapie an, bei fünf war das Ergebnis befriedigend und bei sechs Patienten schlecht (Therapieversagen). 2 h nach Applikation von Ofloxacin wurden am fünften Therapietag Ofloxacinserumspiegel von 2,3 bis 8,2 mg/l (im Mittel 3,9 mg/l) und Sputumspiegel von 1,3 bis 15 mg/l (im Mittel 4,5 mg/l) gemessen. Der Quotient von Sputum- und Serumkonzentration betrug 1,2:1. Die Amoxicillinserumspiegel 2 h nach Applikation betrugen 10 bis 40 mg/l (im Mittel 19,9 mg/l) und die Sputumkonzentrationen 0 bis 1,5 mg/l (im Mittel 0,3 mg/l). Bei zehn der 17 Patienten war Amoxicillin im Sputum nicht nachzuweisen. Der Quotient von Sputum- und Serumkonzentration betrug 0,02:1. Bei einem Patienten der Ofloxacin-Gruppe trat Übelkeit auf. In der Amoxicillin-Gruppe klagten vier Patienten über Übelkeit und Magenschmerzen, einer über Schwindel, und ein Patient hatte eine vorübergehende Blut-Eosinophilie. Ofloxacin erreichte im Sputum in der Behandlung infektiöser Episoden bei Bronchiektasie höhere Konzentrationen und schien wirksamer und besser verträglich zu sein als Amoxicillin.
    Notes: Summary 32 hospitalized adult patients with infective episodes of bronchiectasis were enrolled in an ongoing double-blind, placebo-controlled study comparing ofloxacin with amoxicillin. They were randomized to receive either 200 mg ofloxacin or 1 g amoxicillin, both t.i.d.orally for ten days. In the ofloxacin group (15 patients), clinical response was excellent (clinical cure) in 11 and fair (clinical improvement or early reinfection) in three patients with one failure. In the amoxicillin group (17 patients), clinical response was excellent in six, fair in five, and poor (treatment failure) in six patients. Ofloxacin levels at 2 h (day 5) were 2.3 to 8.2 mg/l (mean 3.9 mg/l) for serum and 1.3 to 15 mg/l (mean 4.5 mg/l) for sputum. Sputum: serum ratio was 1.2:1. Amoxicillin levels at 2 h were 10 to 40 mg/l (mean 19.9 mg/l) for serum and 0 to 1.5 mg/l (mean 0.3 mg/l) for sputum, with no amoxicillin detected in sputum in 10 of 17 patients. Sputum: serum ratio was 0.02:1. One patient in the ofloxacin group had nausea. In the amoxicillin group, four patients had nausea and stomach pain, one had vertigo and one had transient peripheral eosinophilia. Ofloxacin thus yielded higher sputum concentration and appeared to be more effective and better tolerated than amoxicillin in infective episodes of bronchiectasis.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 180 (1979), S. 2765-2767 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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