The application of calcined natural dolomitic rock as a solid base catalyst in triglyceride transesterification for biodiesel synthesis

Natural dolomitic rock has been investigated in the transesterification of C4 and C8 triglycerides and olive oil with a view to determining its viability as a solid base catalyst for use in biodiesel synthesis. XRD reveals that the dolomitic rock comprised 77% dolomite and 23% magnesian calcite. The generation of basic sites requires calcination at 900 ◦C, which increases the surface area and transforms the mineral intoMgO nanocrystallites dispersed over CaO particles. Calcined dolomitic rock exhibits high activity towards the liquid phase transesterification of glyceryl tributyrate and trioctanoate, and even olive oil, with methanol for biodiesel production

Multiple Evidence for Gold(I)center dot center dot center dot Silver(I) Interactions in Solution

[AuAg3(C6F5)(CF3CO 2)3 (CH2PPh3)Jn (2) was prepared by reaction of [Au(C6F5)(CH2PPh3)] (1) and [Ag(CF3CO2)] (1:3). The crystal structures of complexes 1 and 2 were determined by X-ray diffraction, and the latter shows a polymeric 2D arrangement built by Au-Ag, Ag-Ag, and Ag-O contacts. The metallophilic interactions observed in 2 in the solid state seem to be preserved in concentrated THF solutions, as suggested by EXAFS, pulsed-gradient spin-echo NMR, and photophysical studies, which showed that the structural motif [AuAg3(C6F5)(CF3CO2) 3(CH2PPh3)] is maintained under such conditions. Time-dependent DFT calculations agree with the experimental photophysical energies and suggest a metalto-ligand charge-transfer phosphorescence process. Ab initio calculations give an e timated interaction energy of around 60 kJ mol-1 for each Au-Ag interaction. © 2009 Wiley-VCH. Verlag GmbH & Co. KGaA

Discursive opportunities and the transnational diffusion of ideas: ‘brainwashing’ and ‘mind control’ in Japan after the Aum Affair

A case study in the sociology of ideas, this article refines the theory of ‘discursive opportunities’ to examine how intellectual claims cross national and linguistic boundaries to achieve public prominence despite lacking academic credibility. Theories of ‘brainwashing’ and ‘mind control’ originally began in the United States in the 1960s as a response to the growth of new religious movements. Decades later in Japan, claims that so-called ‘cults’ ‘brainwashed’ or ‘mind controlled’ their followers became prominent after March 1995, when new religion Aum Shinrikyō gassed the Tokyo subway using sarin, killing thirteen. Since then, brainwashing/mind control have both remained central in public discourse surrounding the ‘Aum Affair’ despite their disputed status within academic discourse. This article advances two arguments. Firstly, the transnational diffusion of brainwashing/mind control from the US to Japan occurred as a direct result of the 1995 Tokyo sarin attack, which acted as a ‘discursive opportunity’ for activists to successfully disseminate the theories in public debate. Secondly, brainwashing/mind control became successful in Japanese public discourse primarily for their normative content, as the theories identified ‘brainwashing/mind controlling cults’ as evil, violent, and profane threats to civil society.British Academy Postdoctoral Fellowship Cambridge International Trus