Robert Leitch

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Software developers and project managers often have to assess the quality of software design. A commonly adopted hypothesis is that a good design should cost less to maintain than a poor design. In this paper, we propose a model for quantifying the quality of a design from a maintainability perspective. Based on this model, we propose a novel strategy for(More)
The aqueous-phase lipopolysaccharide isolated from Pasteurella haemolytica serotype T10 cells by the phenol-water extraction method was found to be S-type lipopolysaccharide which possessed O-antigenic polysaccharide chains composed only of D-galactose residues. Structural analysis of the O-polysaccharide, using a combination of 1D and 2D 1H- and 13C-n.m.r.(More)
Lipopolysaccharides (LPSs) from 16 serotypes of Pasteurella haemolytica were subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis and examined by silver staining and immunoblotting. Silver staining of proteinase K-digested cell lysates revealed two rough LPS serotypes (serotypes 2 and 8), which lacked demonstrable O-polysaccharide, while(More)
Software maintenance teams are often faced with the challenge of adapting a system's architecture in response to problem reports as well as new functional requirements. More often than not, these maintenance objectives can be accomplished either through the addition of alternative, " patching " components, or by re-factoring the original architecture. The(More)
The need to remain competitive is driving firms to increasingly seek competitive advantages by collaborating more intensely with their partner firms. One aspect of collaboration between firms is interorganizational cost management, where the focus is on specifically managing costs from both a focal firm and a partner firm perspective. This study integrates(More)
Competition is forcing organizations to collaborate more with their business partners. Interorganizational cost management (IOCM) has been used by organizations to achieve the collaborative management of costs throughout the value chain. Effective management of costs that cross organizational boundaries has the potential to improve the overall performance(More)
A fluorescent antibody reagent (termed anti-LPS conjugate) was prepared from sera obtained from hens immunized with gonococcal R-type lipopolysaccharide. The reagent was absorbed with Formalin-treated cells of Neisseria meningitidis. The anti-LPS conjugate gave uniform brilliant staining of Neisseria gonorrhoeae with little background fluorescence, thus(More)
The specific capsular polysaccharide produced by Rhodococcus equi serotype 1 was found to be a high molecular weight acidic polymer composed of D-glucose, D-mannose, and D-glucuronic acid. Structural analysis of the polysaccharide employed a combination of chemical and nuclear magnetic resonance techniques, from which it was determined that the(More)