2,506 research outputs found

    Conceptualising the adoption of sustainable procurement: An institutional theory perspective

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    Sustainable procurement and supply chain management studies are growing; however several scholars have criticised the lack of theoretical development accompanying this literature. Sustainable procurement and supply chain management activities form part of an organisation's path to adopt sustainability. Some scholars have suggested examining the application of management theories to describe the introduction of corporate sustainability to address this gap. Institutional theory is frequently used to describe how new practices are adopted in organisations and has also been applied to several corporate social responsibility studies. This conceptual paper examines the applicability of institutional theory to describe the adoption of sustainable procurement and concludes by presenting three theoretical propositions to explain sustainable procurement adoption. © 2014 Environment Institute of Australia and New Zealand Inc

    Sustainable Supply Chain Relationships

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    Dynamic plate osteosynthesis for fracture stabilization: how to do it

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    Plate osteosynthesis is one treatment option for the stabilization of long bones. It is widely accepted to achieve bone healing with a dynamic and biological fixation where the perfusion of the bone is left intact and micromotion at the fracture gap is allowed. The indications for a dynamic plate osteosynthesis include distal tibial and femoral fractures, some midshaft fractures, and adolescent tibial and femoral fractures with not fully closed growth plates. Although many lower limb shaft fractures are managed successfully with intramedullary nails, there are some important advantages of open-reduction-and-plate fixation: the risk of malalignment, anterior knee pain, or nonunion seems to be lower. The surgeon performing a plate osteosynthesis has the possibility to influence fixation strength and micromotion at the fracture gap. Long plates and oblique screws at the plate ends increase fixation strength. However, the number of screws does influence stiffness and stability. Lag screws and screws close to the fracture site reduce micromotion dramatically

    Roughness and multiscaling of planar crack fronts

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    We consider numerically the roughness of a planar crack front within the long-range elastic string model, with a tunable disorder correlation length ξ\xi. The problem is shown to have two important length scales, ξ\xi and the Larkin length LcL_c. Multiscaling of the crack front is observed for scales below ξ\xi, provided that the disorder is strong enough. The asymptotic scaling with a roughness exponent ζ≈0.39\zeta \approx 0.39 is recovered for scales larger than both ξ\xi and LcL_c. If Lc>ξL_c > \xi, these regimes are separated by a third regime characterized by the Larkin exponent ζL≈0.5\zeta_L \approx 0.5. We discuss the experimental implications of our results.Comment: 8 pages, two figure
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