Results 91 to 100 of about 1,117,391 (197)
Selective extraction of cesium using crown ethers [PDF]
, 1995 The fission product cesium-137, represents an environmental concern to U. S. Department of Energy and nuclear industry. Cesium- 137 though present in trace concentrations in various tanks, waste streams, soil and sediments, accounts for a major fraction ...
Batra, Anil Kumar
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Gender &History, EarlyView.ABSTRACT The British army in India took great care to provide European troops with facilities for sexual relations while anxiously managing venereal disease. Examining archival evidence, political debates and medical discourse from the nineteenth century, this article examines the colonial military enterprise of regulated prostitution in colonial ...
Sameera Chauhan
wiley +1 more source
Journal of the Brazilian Chemical Society, 2001 Metal-chiral crown ether complexes have been developed as efficient chiral Lewis acid catalysts for asymmetric aldol reactions of silyl enol ethers with aldehydes in aqueous media.
Shu Kobayashi +3 more
doaj
Interações entre calixarenos e aminas [PDF]
, 1997 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.A interação de aminas com calixarenos em acetonitrila foi estudada através de titulações condutivimétricas e espectrofotométricas e espectroscopia de ...
Nachtigall, Francine Furtado
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History, EarlyView.Abstract Participants in Russia's 1825 Decembrist uprising against the Tsarist regime were, quite literally, a case study in French cultural influence upon Russia. This is particularly true as it relates to Russia's emotional cultures. Although this has not, traditionally, been the primary focus of historical analysis of this event (in Soviet or ...
ADAM COKER
wiley +1 more source
Synthesis of cationic lanthanoid tetraphenylborate crown ether complexes
Journal of Organometallic ChemistryThe efficacy of Me3NHBPh4 as a protolytic agent in the generation of reactive lanthanoid cations has been further explored. Reaction of [Nd(BH4)3(thf)4] with Me3NHBPh4 in a 1:3 mole ratio, and dibenzo-18-crown-6 (DB18C6) in thf did not yield [Nd(thf)n][BPh4]3, but [Nd(BH4)2(DB18C6)][BPh4]⋅2THF (1), a complex primed for further functionalisation, was ...
David J. Evans +3 more
openaire +2 more sources
International Journal of Urban and Regional Research, EarlyView.Abstract This article investigates the symbolic politics of state‐led gentrification and heritagization, focusing on how these processes serve to ‘glorify’ state power. Drawing on Agamben's political theology, Bourdieu's notion of symbolic power and space, and political heritage studies, we argue that the symbolic politics of state glorification can ...
Wouter van Gent +2 more
wiley +1 more source
Record Low Ionization Potentials of Alkali Metal Complexes with Crown Ethers and Cryptands
, 2019 Electronic properties of series of alkali metals complexes with crown ethers and cryptands were studied via DFT hybrid functionals. For [M([2.2.2]crypt)] (M=Li, Na, K) extremely low (1.70–1.52 eV) adiabatic ionization potentials were found.
Nikolay V. Tkachenko +5 more
core +1 more source
Carney's Davos Address and the (Contested) Re‐Imagining of Middle Powers
Global Policy, EarlyView.ABSTRACT By privileging the intervention of Canada's prime minister, Mark Carney, in his January 2026 Davos address, the work aims to re‐engage with the debate around middle powers extending from academic scrutiny to instrumental practice. On core themes, Carney's address provides exceptional focal points pertaining to the role of this category of ...
Andrew F. Cooper
wiley +1 more source
The Intriguing History of Gloves and Their Application to Surgery
ANZ Journal of Surgery, EarlyView.Gloves were first worn to protect against cold and injury. In surgery, their purpose now is to reduce surgical site infection and blood‐borne transmission of disease. Surprisingly, their adoption in surgery as a routine has been remarkably recent and had a bizarre origin.
Spencer W. Beasley
wiley +1 more source