Results 121 to 130 of about 210,013 (270)

Construction of Inorganic Crown Ethers by s-Block-Metal-Templated Si-O Bond Activation. [PDF]

open access: yesAngew Chem Int Ed Engl, 2021
Dankert F   +5 more
europepmc   +1 more source

COSMOLOGICAL MARKINGS AND ERASURES: The Political Theology of State‐Led Gentrification and Heritagization

open access: yesInternational 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

N.M.R. Study of Molecular Interactions between Xenon and Crown Ethers

open access: yes, 1984
129Xe N.M.R. has been used to investigate intermolecular interactions between xenon and different crown ethers. Chemical shifts of this isotope measured in chloroform solutions containing various amounts of glymes and crown ethers show that the behaviour
Claessens, Michel   +7 more
core   +1 more source

Carney's Davos Address and the (Contested) Re‐Imagining of Middle Powers

open access: yesGlobal 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

A theory of political divergence and gradual institutional change

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Why do some societies succeed in breaking away from historical traditions while others remain trapped? This paper proposes a formal theory to investigate the interaction between short‐run and long‐run political dynamics, highlighting a co‐evolution of political institutions and social structures.
Clair Yang
wiley   +1 more source

The Intriguing History of Gloves and Their Application to Surgery

open access: yesANZ 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

Hydroxyl radical, sulfate radical and nitrate radical reactivity towards crown ethers in aqueous solutions

open access: yes, 2012
Reaction rate constants of crown ethers (12-crown-4, 15-crown-5, 18-crown-6) and their analogs 1,4-dioxane (6C2) with some important oxidative radicals, hydroxyl radical ((OH)-O-center dot), sulfate radical (SO4 center dot-) and nitrate radical (NO3 ...
Katsumura, Y.   +5 more
core   +1 more source

Ion Selective Electrodes Based on Aza- Substituted Crown Ethers [PDF]

open access: yes, 1986
A cation-responsive electrode system has been developed which incorporates aza-substituted crown ethers as ligands. In a novel application, uncomplexed crown ethers were used in the pelletized form for ionic transport. Electrodes have been produced which
Wellington, Lisa Ann
core  

Phosphomimetic statherin‐derived peptide protects against intrinsic enamel erosion independently of sodium trimetaphosphate

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This in vitro study evaluated the effect of a phosphomimetic statherin‐derived peptide (DDSt15), alone or combined with sodium trimetaphosphate (TMP), on the protection against initial enamel erosion. A total of 102 bovine enamel samples (4 × 4 mm2) were prepared and randomly allocated into six groups (n = 17): deionized water (negative ...
Carolina Ruis Ferrari   +9 more
wiley   +1 more source

Effects of Surface Abrasion With Airborne‐Particles and Surface Etching With Hydrofluoric Acid on Color Difference and Translucency of Nano‐Hybrid Ceramic

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effects of alumina airborne‐particle abrasion, glass‐bead airborne‐particle abrasion, and hydrofluoric acid etching of intaglio surfaces on the color difference and translucency of a nano‐hybrid ceramic after cementation to resin abutment specimens, and to analyze the relationships between surface roughness and these
Hyuk‐Joon Lee   +3 more
wiley   +1 more source

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