Corporate Governance in the Context of Crises: Towards a Stakeholder Theory of Crisis Management

In this paper, we take a step towards developing a stakeholder theory of crisis management. We argue that, in the context of crises, adopting the principles of a stakeholder model of corporate governance will lead companies to engage more frequently in proactive and/or accommodating crisis management behaviour even if these crisis management behaviours are not perceived to maximize shareholder value. We also propose a mechanism that may explain why the stakeholder model may be associated with more successful crisis management outcomes. We conclude by challenging the efficacy of the shareholder view in crisis and crisis‐like situations, and call for further theoretical and empirical research.     

Estimating future prices for stationary fuel cells with empirically derived experience curves

Fuel cells presently require an order of magnitude cost reduction to become a commercial success in domestic energy markets. Previous analyses using learning curves have shown that competitive costs are feasible, but these have been unanimously based on theoretical estimates.     

Jungian family sandplay with bereaved children: Implications for play therapists.

Jungian family sandplay (JFS) with bereaved clients, especially young children, may assist family members in communicating their intrapersonal world of grief through symbolic methods. Specifically, play therapists using JFS provide the opportunity for children to share feelings with caretakers that may be developmentally difficult to verbalize. With JFS, children use nonthreatening images to portray feelings and struggles associated with the death of a loved one. The focus of this article is the importance of including caretakers and family members in bereaved children’s sandplay. In addition, we include a clinical vignette to illuminate the potential benefits of incorporating JFS with bereaved children. We conclude with implications for play therapists. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

In situ crosslinked hydrogels formed using Cu(I)‐free Huisgen cycloaddition reaction

BACKGROUND: ‘Click’ chemistry, or the 1,3‐dipolar cycloaddition of organic azides with alkynes, has been evaluated for many biomedical purposes; however, its utility in crosslinking hydrogels in situ is limited by the toxicity of the requisite copper(I) catalyst. We report the first use of catalyst‐free Huisgen cycloaddition to generate crosslinked hydrogels under physiological conditions using multivalent azide‐functionalized polymers and an electron‐deficient dialkyne crosslinker. RESULTS: Water‐soluble azide‐functionalized polymers were crosslinked with an electron‐deficient dialkyne crosslinker to form hydrogels at physiological temperature without the addition of copper(I) catalyst. Crosslinking was confirmed using scanning electron microscopy, Fourier transform infrared and ¹H NMR analyses. Flow by vial inversion and dynamic rheological methodologies were implemented to evaluate gelation kinetics at 37 °C of variable polymer compositions, concentrations and stoichiometric ratios. Kinetic studies revealed gelation in as little as 12 h at 37 °C, although strong gels that withstand inversion were observed by 1–8 days. CONCLUSION: The ability to form hydrogel networks under mild conditions demonstrates the potential viability of the catalyst‐free ‘click’ crosslinking chemistry for in situ gelling and other biological applications. Further chemical modifications in the crosslinking moieties, as well as polymer and crosslinker conformations, are expected to enhance gelation kinetics to a more biomedically practical rate. Copyright © 2009 Society of Chemical Industry     

碱性锌锰电池封口新结构

本文作者研制了一种碱性锌锰电池的封口结构。经过电池的生产和长时间的贮存试验证实此种封口结构可以有效地防止电池泄漏。     

Isotopic identification of the sources of lead contamination for white storks (Ciconia ciconia) in a marshland ecosystem (Doñana,S.W. Spain)

White storks (Ciconia ciconia) fed in contaminated waters resulting from the Aznacollar acid mining-sludge spillage into the R. Guadiamar, which feeds the eastern flank of the Guadalquivir marshes (Do?ana), S.W. Spain. The sludge was rich in a range of toxic elements, and in organic pollutants such as the aromatic amines. Storks did not exhibit elevated metals in their blood immediately following the accident, but chick blood collected the year following the accident showed genotoxic damage compared to the controls. In this study lead isotope analysis was used to assess if the storks had ingested sludge-derived contaminants. The sludge lead isotope ratio was distinct from that of the Do?ana sediments. The stork blood lead isotope ratios exactly matched that of the sludge. It was concluded that the storks had ingested sludge-derived contaminants. A detailed study of the lead contamination along the R. Guadiamar and the R. Guadalquivir (of which the Guadiamar is a tributary) was also conducted to place the white stork colony lead exposure in the context of the spatial contamination of the storks' habitat.