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  • 11
    facet.materialart.
    Unknown
    Paris : Periodicals Archive Online (PAO)
    Revue de littérature comparée. 39:4 (1965:oct./déc.) 642 
    ISSN: 0035-1466
    Topics: Linguistics and Literary Studies
    Notes: Comptes rendus critiques
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  • 12
    facet.materialart.
    Unknown
    Paris : Periodicals Archive Online (PAO)
    Revue de littérature comparée. 40:1 (1966:janv./mars) 141 
    ISSN: 0035-1466
    Topics: Linguistics and Literary Studies
    Notes: Comptes rendus critiques
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  • 13
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 30 Patienten mit Antibiotika-assoziierter Colitis (PMC) wurde der Stuhl aufClostridium difficile und sein Cytotoxin untersucht. Bei drei Patienten waren Coloskopie oder Bariumeinlauf zur Absicherung der Diagnose einer PMC erforderlich, da der Befund der Sigmoidoskopie diagnostisch nicht weiterführte. Bei 27 der 30 Patienten waren Erreger und Cytotoxin nachweisbar; bei zwei der restlichen Patienten wurdeStaphylococcus aureus als Ursache für die PMC ausgeschlossen. 19 Patienten mitC. difficile-induzierter PMC wurden oral mit Vancomycin behandelt, 18 davon sprachen auf die Therapie an; doch trat nach Absetzen von Vancomycin bei sieben Patienten ein Colitis-Rezidiv auf. Diese Rezidive sprachen im allgemeinen auf eine nochmalige Vancomycinbehandlung an. Der Nachweis von Schleimhautplaques oder einer Pseudomembran ist der beste Nachweis für eine Beteiligung vonC. difficile. Der kulturelle Nachweis vonC. difficile in den Faeces und der Cytotoxin-Test sind wegen des Vorkommens von asymptomatischen Trägern in ihrem diagnostischen Wert eingeschränkt.
    Notes: Summary Thirty patients with antimicrobial agent-associated pseudomembranous colitis (PMC) were studied for the presence ofClostridium difficile and its cytotoxin in feces. Either colonoscopy or barium enema radiography was required in three patients for the diagnosis of PMC because of nondiagnostic findings at sigmoidoscopy. Both the organism and cytotoxin were detected in 27 of the 30 patients;Staphylococcus aureus was excluded as the cause of PMC in two of the remaining patients. Eighteen of 19 patients withC. difficile-induced PMC who were treated with oral vancomycin had a salutary response; seven patients, however, had a relapse of colitis following the discontinuation of vancomycin. In general, relapses of colitis responded to retreatment with vancomycin. The implication ofC. difficile as a cause of diarrhea is best achieved by the demonstration of colonic mucosal plaques or of a pseudomembrane. The value of fecal culture forC. difficile and cytotoxin assay is limited by the existence of asymptomatic carriers.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 3 (1968), S. 657-660 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 230 (1983), S. 197-203 
    ISSN: 1432-0878
    Keywords: Odontoblasts ; Denervation ; Glycoproteins ; Predentin ; 3H-Fucose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The present study was designed to determine the effects of denervation on glycoprotein synthesis in the predentinal matrix of the mouse incisor. The inferior alveolar nerve (IAN), superior cervical ganglion (SCG) or both (IAN+SCG) were unilaterally resected in adult mice with the contralateral side remaining intact as a control. Fourteen days after surgery and 4 h prior to killing, 0.2 mCi of 3H-fucose was injected intravenously and mandibles were processed for standard histological and autoradiographic techniques. Silver halide grains were counted over the predentin matrix for 2000 μm per tooth. The results showed that the IAN and SCG resection affected 3H-fucose incorporation into the predentinal matrix; however, the highest absolute mean grain counts occurred after IAN+SCG resection. SCG resection increased the amount of 3H-fucose incorporated into the predentinal matrix by 48%, that of IAN by 24% and that of IAN+SCG by 14% as compared to contralateral controls. These data indicate a regulatory role for the nervous system and a possible interaction of neural components in the control of glycoprotein synthesis by odontoblasts in the mouse incisor.
    Type of Medium: Electronic Resource
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  • 16
    ISSN: 1432-0878
    Keywords: Autoradiography ; 3H-proline ; Osteoblasts ; Sympathectomy ; Guanethidine-sulfate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Sympathectomy was carried out in rats by injections of guanethidine-sulfate from birth to 14 days of age. At 45 days of age, the activity of osteoblastic cells was monitored by 3H-proline autoradiography. Effectiveness of sympathectomy was verified by light-microscopic examination of superior cervical and celiac ganglia. Grain counts over periosteal osteoblasts of the femoral diaphysis and osteoblasts mesial to the first molar in the mandible demonstrated a significantly reduced uptake of 3H-proline in the sympathectomized rats. The data provide direct evidence of sympathetic influence on osteoblastic activity and suggest that sympathectomy may result in the loss of a trophic influence which is important in the regulation of osteogenesis.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 23 (1968), S. 313-325 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The experimental conditions suitable forS→L mutation rate determination in ECHO virus 19 were investigated. Selection curves ofL mutants during multicycle growth andS→L mutation rate determinations in single cycle growth of clonalS virus populations were performed on monkey kidney cultures with and without human embryo extract and, respectively, calf serum added as well as on human embryo cultures. The mutation rate values obtained varied for the sameS clone with the selective effect of the host cell-medium system used even in single cycle growth experiments. On human embryo cultures (selectively favouringL particles) mutation-rate values were the highest, while on monkey kidney cells in the presence of human embryo extracts (with stabilizing effect onS virus) these values were lowest. Finally on unsupplemented monkey kidney cultures intermediate mutation rate values were recorded. It thus seems impossible to establish the exact role of mutation and that of favouring or limiting effects of selection in theS→L shift of ECHO virus 19 populations during in vitro passages. These findings also suggest that actualS→L mutation rate values could be obtained only on host cell systems selectively “neutral” for parentalS and mutantL particles. The impossibility to resolve this vicious cycle —i.e. necessity to know the rate of a mutational event prior to its determination — imposes specification of the host cell medium system in studies in which mutation rate determinations are performed.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 25 (1968), S. 241-246 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Mutation rates toward the L plaque character in three S clonal populations obtained from a single ECHO virus 19 strain were investigated. Determinations were performed on monkey kidney (MK) and human embryo (HE) cells respectively in single growth cycle experiment in order to reduce selection favouring the L virus progeny. Mutation rate figures obtained differed 7.5 fold on MK and 19.4 fold on HE for two S clonal populations exhibiting a number of identical genetic characters. The fact that mutation rate differences recorded in genetically similar S populations were greater on higher selective host cell system suggests that the apparent variation in mutability consists in dissimilarity concerning growth requirements of the resulted L mutants.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 77 (1983), S. 231-238 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary After unilateral footpad inoculation with herpes simplex virus (HSV) the infection spreads initially to the ipsilateral and afterwards to the contralateral spinal ganglia. In about 25 percent of the mice the virus also reaches the trigeminal ganglia. Furthermore, we have shown that only a complete severance of the nervous connections can prevent the colonization of ganglia with HSV after footpad inoculation. Results of previous experiments in which only the sectioning of the sciatic nerve was able to prevent the invasion of ganglia, are difficult to explain. It appears also that HSV travels in the nerve toward the ganglia in a non-infectious form, and that the infectious virus detectable in nerves originates not from the peripheral inoculation site, but from the infectious virus pool which accumulates in spinal ganglia. A limited role of the circulatory system in the colonization of sensory ganglia by HSV cannot be excluded, since in a few cases virus was detected in ganglia after sectioning of both the sciatic and the femoral nerve.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 18 (1966), S. 231-243 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Following mixed infection of monkey kidney cells with a guanidine-sensitive clonal derivative of the attenuated LSc2ab type 1 poliovirus strain and with a guanidine-resistant clonal derivative of the MEF1 type 2 strain, the frequency of guanidine-resistant type 1 particles was found to be increased in the progeny. The frequency of these particles was almost 4 times higher than that of spontaneous mutants in the progeny of the self cross. This difference being statistically significant it is considered to be an argument in favour to the occurrence of recombination between the two serologically unrelated poliovirus strains. Investigation of a group of unselected genetic markers in the type 1 guanidine-resistant clonal strains derived from the progeny of mixed infection showed that transfer of guanidine resistance from the type 2 parental strain was not associated with the transfer of any other character of this strain.
    Type of Medium: Electronic Resource
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