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  • 1
    ISSN: 0378-1119
    Keywords: Colletotrichum gloeosporioides ; PCR ; cDNA cloning ; fungi ; introns ; trans-eliminase ; yeast expression
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Queueing systems 8 (1991), S. 323-356 
    ISSN: 1572-9443
    Keywords: Infinite server ; batch arrival ; Markov renewal input ; customer dependence ; analytical result
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract An important property of most infinite server systems is that customers are independent of each other once they enter the system. Though this non-interacting property (NIP) has been instrumental in facilitating excellent results for infinite server systems in the past, the utility of this property has not been fully exploited or even fully recognized. This paper exploits theNIP by investigating a general infinite server system with batch arrivals following a Markov renewal input process. The batch sizes and service times depend on the customer types which are regulated by the Markov renewal process. By conditional approaches, analytical results are obtained for the generating functions and binomial moments of both the continuous time system size and pre-arrival system size. These results extend the previous results on infinite server queues significantly.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Queueing systems 22 (1996), S. 129-144 
    ISSN: 1572-9443
    Keywords: Infinite server ; batch arrival ; batch service ; analytical results
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Service systems with queueing often have both batch arrivals and batch services. This paper focuses on the number of busy servers and waiting customers in theGI X/MR/∞ system. For the number of busy servers, we obtain a recursive relation for the partial binomial moments in terms of matrices and explicit expressions for the marginal binomial moments. Special cases are also discussed to provide a more heuristic understanding of the model.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Queueing systems 2 (1987), S. 363-372 
    ISSN: 1572-9443
    Keywords: Infinite server ; impatient customers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract An infinite server queue is considered where customers have a choice of individual service or batch service. Transient results have been obtained for the first two moments of the system size distribution. Waiting time distribution is important in system evaluation and steady state results are obtained.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0170-2041
    Keywords: Gloeosporone ; Colletotrichum gloeosporioides ; 4-Pentynoic acid ; Oxidation, alkyne → 1,2-diketone ; 23Na NMR ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Gloeosporon - Ein Pilzkeimungs-Selbsthemmer mit Macrolidstruktur. - Totalsynthese und AktivitätAusgehend von (S)- oder (R)-4-Brom-1,2-epoxybutan [kommerziell erhältlich oder leicht und in hoher Ausbeute aus (S)- bzw. (R)- Apfelsäure zugänglich] wurden die beiden Enantiomeren des Keimungs-Selbstinhibitors Gloeosporon hergestellt. Die absolute Konfiguration des Naturstoffes wurde damit als 4S,7R,13R bewiesen. Mikrobiologische Tests zeigen, daß beide Enantiomere von Gloeosporon die Keimungshemmung der Sporen von Colletotrichum gloeosporioides bewirken, und daß (-)-Gloeosporon gegenüber einer Reihe von anderen Pilzen aktiv ist. Zur Aufklärung des Wirkungsmechanismus wurden 23Na-NMR- sowie Ionenselektivitätsmessungen durchgeführt; es konnten keine Gloeosporon-Metallion-Wechselwirkungen nachgewiesen werden.
    Notes: Starting with (S)- or (R)-4-Bromo-1,2-epoxybutane [commercially available or readily made from (S)- or (R)-malic acid], both enantiomers of the germination self-inhibitor gloeosporone were synthesized. The absolute configuration of the natural product was thus proven to be 4S,7R,13R. Microbiological studies showed that both enantiomers of the compound cause inhibition of germination in spores of Colletotrichum gloeosporioides, and that (-)-gloeosporone is also active against a variety of other fungi. In order to gain some insight into the mode of action, 23Na NMR measurements and ion-selectivity studies were undertaken; none of these experiments provided evidence for a gloeosporone-metal ion interaction.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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