Robert D. Klassen

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T view that adopting an environmental perspective on operations can lead to improved operations is in itself not novel; phrases such as “lean is green” are increasingly commonplace. The implication is that any operational system that has minimized inefficiencies is also more environmentally sustainable. However, in this paper we argue that the underlying(More)
Organizations are faced with increasing pressure to engage in sustainable development and to integrate environmental and social dimensions into their traditional performance metrics. Prior research suggests that lean management and supply management are potentially important determinants of environmental performance and can be seen as capabilities that ease(More)
Five surveys, using a previously developed high-performance liquid chromatography procedure to measure caffeine concentrations, indicated great variations in the concentrations of caffeine in tea and coffee. In the study of beverages prepared at home, data on caffeine concentrations in 58 samples of tea and coffee, volumes of cups, and numbers of cups(More)
A new method, developed specifically for the extraction of heterocyclic aromatic amine (HAA) type mutagens from different food matrices, was applied to various forms of commercially available bouillons. This procedure is based on liquid-liquid extraction of the sample at different pH values. Recovery and reproducibility of the procedure was determined by(More)
The bullwhip effect has long been recognized as a critical factor that amplifies demand variability as customer orders pass upstream through successive tiers of a supply chain. Like customer demand, environmental requirements also change significantly at times, and are passed along the supply chain to varying degrees, suggestive of what we term, the “green(More)
Eight samples of 'processed food flavours' (PFFs), chosen from five different categories, were analysed for their mutagenic activity using the Ames Salmonella assay, and also for the presence of eight heterocyclic aromatic amines (HAAs), namely 2-amino-3-(trideuteromethyl)imidazo[4,5-f]quinoline (IQ), 2-amino-3,8-dimethyl-imidazo[4,5-f]quinoline (MeIQ),(More)
Characterization of alterations in caffeine elimination during pregnancy is essential in assessing the potential exposure of the fetus to caffeine and its metabolites. Female monkeys (Macaca fascicularis) were exposed to caffeine in their drinking water 7 days/week before, during and after pregnancy. The low exposure (0.15 mg/ml) corresponded to a level(More)
Organizations are faced with increasing pressure to engage in sustainable development and to integrate environmental and social dimensions into their traditional performance metrics. Prior research suggests that lean management and supply management are potentially important determinants of environmental performance and can be seen as capabilities that ease(More)