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  • 1
    Electronic Resource
    Electronic Resource
    Inspiratory muscle activity during induced hyperinflation
    Amsterdam : Elsevier
    Respiration Physiology 39 (1980), S. 303-313 
    Details
    ISSN: 0034-5687
    Keywords: Diaphragm ; Inspiratory muscles ; Intercostal muscles ; Mechanics of breathing ; Pleural pressure ; Work of breathing
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0034-5687(80)90062-6
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A linear algorithm to decompose inheritance graphs into modules (1995)
    Springer
    Algorithmica 13 (1995), S. 573-591 
    Details
    ISSN: 1432-0541
    Keywords: Inheritance graphs ; Linear-time complexity ; Modules ; Dominators ; Decomposition ; Substitution ; 2-Connectivity ; Linear extension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract Inheritance graphs of object-oriented languages can be decomposed into independent subgraphs, or modules, which are inheritance graphs themselves. This paper is devoted to the study of efficient algorithms of decomposition into modules similar to substitution decomposition algorithms. For 2-connected inheritance graphs we search for maximal modules (under inclusion), whereas we show that the significant modules of non-2-connected graphs are the biconnected components. For the 2-connected case, a method based upon a property of greedy linear extensions is proposed. However, in both cases a linear-time complexity algorithm is provided to decompose into modules. Furthermore, the algorithm can be inserted into the inheritance mechanism (such as in CLOS [14]).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01189070
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Characterisation of a partially purified uracil phosphoribosyltransferase from the opportunistic pathogenCandida albicans (1994)
    Springer
    Mycopathologia 125 (1994), S. 129-141 
    Details
    ISSN: 1573-0832
    Keywords: Candida albicans ; Opportunistic pathogen ; Pyrimidine salvage pathway ; Uracil phosphoribosyltransferase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This paper describes for the first time the partial purification and properties of uracil phosphoribosyltransferase (UPRTase) from the yeastCandida albicans. UPRTase was purified 38 fold by acid precipitation, DEAE-Sephacel chromatography and ultrafiltration. Further purification of UPRTase was unsuccessful due to the labile nature of the enzyme and the failure in obtaining satisfactory stabilizing conditions. SDS-PAGE suggested that the enzyme exists as a dimer of two dissimilar subunits with molecular masses of 47 and 38 kDa. The pH optimum for phosphoribosylation was about 7.5 and the optimal Mg++ concentration was 2 mM. The kinetics of the enzymes for its substrates, uracil and 5-phosphoribosyl-1-pyrophosphate (PRPP) were determined by measuring initial enzyme velocities over a wide range of concentrations of either substrate at different fixed concentrations of the second substrate. Graphic analysis of the data by Hanes-Woolf plots indicated that the reaction is indistinguishable from a double displacement reaction. ‘Ping pong’ mechanism has been previously reported for other phosphoribosyltransferases. The enzyme has a low affinity for its substrates (K m=70.5 and 186 µM for uracil and PRPP, respectively) as compared with those ofE. coli and baker's yeast. Inhibition studies indicate that 5-fluorouracil acts as an alternative substrate for UPRTase with 1.6 times higher specific activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01146517
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    Paper (German National Licenses)
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