Silver-containing dressings are considered fundamental to the management of infected acute and chronic wounds, specifically burns. The aim of this study was to determine both the spectrum of activity and efficacy of an Alginate/CMC Silver Dressing (ACSP) on planktonic microorganisms by conducting a 21-day repeat-challenge log reduction study. ACSP was found to have a microbiocidal effect, for up to 21 days, on all bacteria and yeast challenged. The results demonstrated an antimicrobial efficacy similar to Hydrofiber Silver Dressing's (HSD) up to day 14 for each microorganism tested. However, following a second reinoculation of microorganisms at day 14, ACSP showed antimicrobial efficacy superior to HSD's against a number of opportunistic pathogens, which included Pseudomonas aeruginosa and Candida albicans. The ACSD maintained its antimicrobial action against all microorganisms over the 21-day study period.
This paper presents the emergence of G20 summits from their roots in the G8 summit and G20 ministerial forum, along with the sequence of G20 summits through the Cannes Summit of November 2011. It explores the trajectory of these three key global forums, and the dynamics carrying forward the G20 summit as a major new mechanism of global governance. This history is in a continuing process of evolution, and is itself defining the issues and challenges facing the global economy and political leaders of G20 countries.Author Notes: The authors are grateful to the Centre for International Governance Innovation (CIGI) in Waterloo, Ontario, Canada, for financial support for the Brookings-CIGI Seminar Series on international and global governance reforms, an annual series under their direction since 2006. Colin Bradford wants to express his gratitude to CIGI for direct financial support for his work and involvement in G20 issues over these years.
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