Browsing by Author "Brown, Douglas"
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- ItemOpen AccessA Genealogy of Pro-Status Quo Voluntarism: From the Victorian Volunteer Movement to Fundraising Distance Runs for Healthcare(2013-09-13) Francis, Cheryl; Brown, DouglasThe current phenomenon of running long distances to raise money and awareness for healthcare-oriented charities has roots in Victorian-era Britain. Combining the pro-status quo nineteenth-century Volunteer movement with forced prison treadwheel labour specific to the same era yields a precursor of less-similar form than the current spectacle but with an exceedingly similar function. The Volunteer movement was little more than rational recreation under the guise of preparing for a war that never came, while prison officials of the era commodified treadwheel labour as a way to make inmates pay for their own institutional expenses. Thorstein Veblen’s concept of conspicuous consumption of leisure time defines both the 19th-century Volunteer movement and its current counterpart, which also exhibits characteristics of rational recreation. Both the Volunteer movement and today’s charity running events were and are developed and employed in countries where the governments of the day took (and take) a ‘live and let live’ approach to service provision. Nancy Scheper-Hughes and Margaret Lock’s publication “The Mindful Body: A Prolegomenon to Future Work in Medical Anthropology,” provides a useful analytical tool with which to compare and contrast the individual, social and political aspects of the Volunteer movement, prison treadwheel labour and fundraising distance running.
- ItemOpen AccessRuthenium Mesoionic Carbene Complexes and their Applications in Energy Generation and Storage(2017) Brown, Douglas; Sutherland, Todd; Berlinguette, Curtis Paul; Baumgartner, Thomas; Ling, Chang-Chun; Rivrad, Eric; Trudel, Simon; Heyne, BelindaA series of bis(tridentate) ruthenium complexes bearing 2',6'-bis(1-(2,6-dimethyl-4-bromophenyl)-3-methyl-1,2,3-triazol-4-yl-5-idene)pyridine (C^N^C) have been synthesized and characterized. The complexes of the type [Ru(terpy)(C^N^C)]2+ and derivatives herein, exhibit longer excited state lifetimes (τ) than the archetypical [Ru(terpy)2]2+ (terpy = 2,2':6,2''-terpyridine; τ = 0.25 ns) by several orders of magnitude (τ ~ 8 μs). Their unique ligand geometry and robust sensitization of TiO2 offer insightful design considerations in both dye-sensitized solar cell (DSSC) and water oxidation. In Chapter 2, a series of ruthenium complexes were investigated for their emission properties, which exhibited some of the longest room temperature excited state lifetimes ever reported. Modifications of both ligand fragments were conducted with electron-donating groups and electron-withdrawing groups, which enabled fine-tuning of the triplet metal-to-ligand charge transfer (3MLCT) state. This was a result of destabilizing the normally thermally accessible deactivating triplet metal centered (3MC) state. The location of the lowest-unoccupied molecular orbital (LUMO) could be tuned to reside on either the terpy or C^N^C fragment through chemical modification. Chapter 3 provides details on the sensitization of TiO2 through the cooperative anchoring of phosphonate (-PO3H2) and carboxylate (-CO2H) groups and their performance in the DSSC. Using a combination of anchoring groups provided an opportunity to address the instability due to hydrolysis with the -PO3H2 group, while maintaining electronic communication through the preferred -CO2H. The geometry of the two tridentate ligands within the complexes permitted them to be bind through both ligands to the TiO2 surface. Temporal stability studies identified the cooperative binding approach successfully increased hydrolysis resistance and that the –CO2H moiety on the terpy ligand was critical for higher power conversion efficiencies (PCE ~ 0.2%). The absorption spectrum showed modest absorptions over the visible spectrum 400 to 650 nm (λmax ~ 470 nm ; ε up to 1.0 × 104 M-1cm-1), which limited the maximum PCE ~ 2% based on the solar spectrum. In Chapter 4, the cooperative anchoring strategy was exploited in the heterogenization of a molecular water oxidation catalyst. The title complex ([Ru(bpy-CO2H)(C^N^C-PO3H2)Cl]2+) investigated was anchored to TiO2 and the catalytic oxidation of water (~4.0 μA/cm2; TOF 0.0004s-1) was demonstrated.
- ItemOpen AccessSport and politics during the cold war: reflections on agency and identity by Canadian olympians, 1970s to 1980s(2007) Koch, Jordan R.; Brown, Douglas