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  • 1
    Electronic Resource
    Electronic Resource
    On the welfare effects of anti-discrimination regulations in the EC car market
    Amsterdam : Elsevier
    International Journal of Industrial Organization 7 (1989), S. 205-230 
    Details
    ISSN: 0167-7187
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-7187(89)90019-2
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation of actinomyces israelii in a case of gallbladder infection and comparison of identification methods (1981)
    Springer
    Infection 9 (1981), S. 47-49 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei der bakteriologischen Abklärung einer Gallenblaseninfektion wurdeActinomyces israelii entdeckt, der sich in diesem Organ nur ausnahmsweise nachweisen läßt. Immunfluoreszenzmethoden bieten an sich die schnellsten und raschesten Kriterien für die Identifizierung, doch waren die Antiseren zum Untersuchungszeitpunkt noch nicht verfügbar. Zur vorläufigen Identifizierung der isolierten Kolonien des Stammes wurde der Nachweis der Glykosidasen in Verbindung mit der Katalaseaktivität herangezogen. Dieses Vorgehen ist nicht ausreichend, daA. israelii undA. naeslundii dieselben Enzymprofile haben, jedoch können andere Species und am meisten verwandte Genera immerhin mit dieser Methode ausgeschlossen werden. Ein diagnostischer Beitrag ist von Gasflüssigkeitschromatographie zu erwarten, die durchaus brauchbar, wenn auch erheblich langwieriger ist. Allerdings eignet sie sich nicht zur Species-Differenzierung. Eine exakte Differenzierung wurde mit Hilfe klassischer Methoden erzielt. Dies ist jedoch mit erheblichem Aufwand verbunden, und eine Differenzierung zwischenA. israelii undA. naeslundii zehn Tage nach Erregerisolierung kann nur begrenzt praktisches Interesse besitzen.
    Notes: Summary In a case of gallbladder infection, bacteriological studies revealed the presence ofActinomyces israelii, an organism rarely encountered in this site. While direct or indirect immunofluorescence techniques would undoubtedly provide the best identification criteria in the shortest time, the antisera were not available when the study was conducted. The most rapid technique for a tentative identification of isolated colonies of the strain was based upon detection of glycosidases together with catalase activity. Although not sufficient sinceA. israelii andA. naeslundii present the same enzymatic profiles, the other species and the most closely related genera can nevertheless be excluded by this method. Gas liquid chromatography — indeed useful yet much slower — contributes to identification but is not suitable for differentiation at the species level. Accurate identification was obtained by classical, time-consuming techniques. DistinguishingA. israelii fromA. naeslundii ten days following pathogen isolation can only be of limited practical interest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01640809
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of clindamycin gel insert in periodontal pockets, as observed on smears and cultures (1993)
    Springer
    Infection 21 (1993), S. 245-247 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Ein Gel mit 1% Clindamycin Hydrochlorid wurde in Zahntaschen von mehr als 5 mm Tiefe eingebracht. Der Effekt auf die mikrobielle Flora wurde bei 20 Patienten mit Taschenbildung in der prämolaren Region geprüft. In den ersten zwei Wochen dieser Studie wurden wirk-stoffhaltiges und Placebo-Gel jeweils einmal appliziert. 1, 2, 4 und 12 Wochen nach Beginn des Versuches wurden Proben für die mikrobiologische Untersuchung entnommen. Die Proben wurden mikroskopisch und kulturell untersucht. Die Befunde bei Behandlung mit subgingivalem Debridement und Clindamycin und Debridement und Placebo-Gel wurden verglichen. Besondere Beachtung wurde schwarz pigmentierten Anaerobiern und der motilen gramnegativen Flora geschenkt. Die Unterschiede zwischen den beiden Behandlungsgruppen waren ausgeprägt. Nach 3 Monaten waren allerdings die Patienten der Verumgruppe meist wieder mit denselben Spezies kolonisiert wie vor der Behandlung. Man kann daraus folgern, daß eine Einlage mit Clindamycin Hydrochlorid-Gel einmal wöchentlich für zwei Wochen eine effektive Zusatztherapie zum subgingivalen Debridement in der Therapie der Periodontitis beim Erwachsenen durch Förderung der Elimination der mikrobiellen Besiedelung der Zahntaschen ist.
    Notes: Summary This study is aimed at the evaluation of a 1% clindamycin hydrochloride containing gel on the microbial flora of periodontal pockets deeper than 5 mm. In order to achieve that purpose, 20 patients with pocketing in the premolar-molar regions were selected. Active and placebo gel were inserted once during the first 2 weeks of this experimental study. Microbial samplings were performed 1, 2, 4 and 12 weeks after the experiment started. The samples were submitted to microscopic examination and also to culture. Changes in the microbial content of the periodontal pockets treated by subgingival scaling and clindamycin 1% gel were significant, compared with those obtained with subgingival scaling and placebo gel, particularly with respect to anaerobic black-pigmented bacteria and the motile gram-negative flora. However, after 3 months, most of the treated cases were recolonized by the same initial species, though never at pre-clindamycin levels. In the light of this study, it will be concluded that the use of a small amount of clindamycin hydrochloride inserted into a periodontal pocket, once a week for 2 weeks as a complement to periodontal subgingival scaling, is beneficial in the treatment of adult periodontitis, by eliminating more effectively the microbial pocket colonization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01728900
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  • 4
    Electronic Resource
    Electronic Resource
    Simple disk technique for carbohydrate fermentation and esculin hydrolysis testing of anaerobic gram-negative bacilli (1980)
    Springer
    Infection 8 (1980), S. S161 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Kohlenhydratfermentierung durch anaerobe gramnegative Bazillen war durch Verwendung von Taxoplättchen auf supplementiertem Columbia Agar leicht nachweisbar. Nach Inkubation wurden zwei Tropfen einer 0,2%igen Lösung von Bromthymolblau auf jedes Plättchen gebracht: Eine gelbe Färbung zeigte die positive Reaktion an. Zur Bestimmung der Aesculinhydrolyse wurden Papierplättchen, die mit 2 mg Aesculin (Merck) imprägniert waren und auf dasselbe Medium aufgebracht wurden, benutzt: Die Ergebnisse wurden nach Zugabe von zwei Tropfen einer 10%igen Ferrichloridlösung abgelesen. Bei der Untersuchung von langsam wachsenden und/oder serophilen anaeroben gramnegativen Bakterien, wieBacteroides melaninogenicus oderBacteroides oralis, wurde der supplementierte Columbia Agar mit 10%igem sterilem Pferdeserum angereichert. Unterschiede zwischen den Ergebnissen mit der konventionellen Röhrchentechnik und der Plättchen-Methode wurden nur gelegentlich mit Salicin beobachtet.
    Notes: Summary Carbohydrate fermentation by anaerobic gram-negative bacilli was easily detected using Taxo-Disks placed on supplemented Columbia Agar. After incubation, two drops of a 0.2% solution of bromothymol blue were added to each disk: yellow coloring was indicative of a positive reaction. In the esculin hydrolysis test paper disks impregnated with 2 mg of esculin were placed on the same medium. The results were read after addition of two drops of a 10% solution of ferric chloride. When testing slow-growing and/or serophilic anaerobic gram-negative bacilli, such asBacteroides melaninogenicus orBacteroides oralis, the supplemented Columbia Agar was enriched with 10% sterile horse serum. Discrepancies between results with the conventional tube technique and the disk method were occasionally observed with salicin only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01639883
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  • 5
    Electronic Resource
    Electronic Resource
    Susceptibility of clinical isolates of campylobacter pylori to 24 antimicrobial and anti-ulcer agents (1988)
    Springer
    European journal of epidemiology 4 (1988), S. 154-157 
    Details
    ISSN: 1573-7284
    Keywords: Campylobacter pylori ; In-vitro susceptibility ; Antibiotics ; Antiulcer drugs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Forty-nine isolates of Campylobacter pylori were tested for their susceptibility to twenty antibiotics and four anti-ulcer agents by an agar dilution technique. Penicillin and amoxycillin were the most active drugs (MIC90, 0.06 μ/ml); erythromycin, cefazolin, minocycline, ciprofloxacin, ofloxacin and gentamicin were sligthtly less active (MIC90, ≤ 1 μg/ml). Moderate activity was found for doxycyclin, rifampin, nitrofurantoin, norfloxacin, pefloxacin, enoxacin, paromomycin, metronidazole and tinidazole. All strains were resistant to trimethoprim (MIC 〉 512 μg/ml). Nalidixic acid (MIC90, 〉 256 μg/ml) and colistin (MIC90, 〉 64 μgg/m1) had little to no activity. Of four anti-ulcer drugs, only bismuth subcitrate showed activity (MIC90, 64 μg./ml). Strains resistant to all 4-quinolones were found in patients who had previously received ofloxacin as part of a clinical trial aimed at eradication of C. pylori. These isolates remained susceptible to amoxycillin, tetracyclines and to other classes of antibiotics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00144743
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  • 6
    Electronic Resource
    Electronic Resource
    How bad can a voting location be (1986)
    Springer
    Social choice and welfare 3 (1986), S. 125-145 
    Details
    ISSN: 1432-217X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology , Economics
    Notes: Abstract Two questions concerning the location of a single facility by a voting process are investigated for transportation networks: - What is the maximum number of customers located on the network preferring some rival point over a voting solution? - How does the average distance of the customers to the facility increase when a voting location instead of a Weber location is chosen for the facility? Complete answers are given for general networks and for certain planar networks, viz., the so-called generalized cacti.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00435663
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  • 7
    Electronic Resource
    Electronic Resource
    Cross-reactivity of environmental bacteria with fluorescent-antibody conjugates forLegionella pneumophila (1984)
    Springer
    European journal of clinical microbiology & infectious diseases 3 (1984), S. 215-215 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02014884
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  • 8
    Electronic Resource
    Electronic Resource
    Isolation ofMobiluncus in four cases of extragenital infections in adult women (1984)
    Springer
    European journal of clinical microbiology & infectious diseases 3 (1984), S. 433-435 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In four adult women with various clinical conditions, curved anaerobic bacilli, similar to organisms recently assigned to the new genusMobiluncus, were isolated from extragenital sources. None of the patients presented symptoms or clinical abnormalities related to the genital tract. The clinical data of these cases are reported and the microbiological findings are briefly described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02017365
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  • 9
    Electronic Resource
    Electronic Resource
    Fatty acid composition ofStreptococcus milleri (1985)
    Springer
    European journal of clinical microbiology & infectious diseases 4 (1985), S. 391-393 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The cellular fatty acids of 31 strains belonging to theStreptococcus milleri group were analysed by capillary gas-liquid chromatography. Results were compared with findings from biochemical differentiation of the strains intoStreptococcus constellatus (two strains),Streptococcus anginosus (16 strains) andStreptococcus intermedius (13 strains). Eight strains of various other streptococci were included as internal references, including three strains ofStreptococcus morbillorum, three strains ofβ-hemolytic streptococci, and two strains of enterococci. TheStreptococcus milleri strains formed a very homogeneous group according to fatty acid composition and were easily differentiated from other groups. However, within the group, it was not possible to differentiateStreptococcus constellatus, Streptococcus anginosus andStreptococcus intermedius by fatty acid composition alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02148689
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  • 10
    Electronic Resource
    Electronic Resource
    In vitro activity of teicoplanin and vancomycin against anaerobes (1984)
    Springer
    European journal of clinical microbiology & infectious diseases 3 (1984), S. 50-51 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02032822
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