Results 51 to 60 of about 5,651,932 (190)
Studies in Ethnicity and Nationalism, EarlyView.ABSTRACT ‘What we teach is true to us’, one social studies teacher reflected when describing the curricular standards guiding his Dubai classroom. But who, in Dubai's multinational classrooms, gets to be part of that ‘us’? Private secondary schools in Dubai have become productive sites for state‐led civic nationalist projects. The United Arab Emirates'
Christian Bevilacqua
wiley +1 more source
Dan Hammett: ceramics (4) [PDF]
, 1982 "The Olympia Award" was a limited edition of a 523 B.C. Greek Replica Amphora that was awarded to the 1982 USA Summer Olympic Gold Medalist.
Hammett, Dan
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ChemPhotoChem, Volume 10, Issue 11, November 2026.A photophysical study involving 36 carbazole derivatives combines steady‐state/time‐resolved spectroscopy, temperature‐dependent emission, and singlet dioxygen sensitization metrics with conceptual density functional theory calculations. This comprehensive study establishes robust structure–property relationships to guide the rational design of new ...
Franco M. Cabrerizo +8 more
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Anion‐Bridged Dual Hydrogen Bond Enabled Concerted Addition of Phenol to Glycal
Advanced ScienceA noncovalent organocatalytic concerted addition of phenol to glycal is developed for the stereoselective and regioselective construction of biologically important phenolic 2‐deoxyglycosides, featuring wide substrate tolerance.
Qinbo Jiao +7 more
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Nippon kagaku zassi, 1963 19種のNl-アリールスルファニルアミドのアミノ基の解離定数(KNH3+;ArNHSO2C6H4NH3++H20 ArNHSO2C6H4.NH2+H30+)を27°±1°C,イオン強度0.2で吸収スペクトル法を用いて正確に測定し,Hammett則との関係を検討した。その結果,この解離には通常のHammett則は適用されないで,次式に示すような補正則が適用されることが見いだされた。10gKNH3+=0.212(σ+0.48ΔσR-)-1.8154ΔσR=-σ'-σ正常なHammett則が適用されないで,この補正則が適用されるということは,アリール基のρ位の電子吸引基の付加的共鳴寄与が-NHSO2-を経てアミノ基に伝わることを示している。一方吸収スペクトルとρ値の検討から-NHSO2-は-C=C ...
Mitsuru YOSHIOKA +2 more
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ChemPhotoChem, Volume 10, Issue 11, November 2026.Brightly emissive N,O‐chelated benzimidazole‐based boron complexes exhibit high photoluminescence efficiency and characteristic excited‐state dynamics. Steady‐state and time‐resolved spectroscopic studies, supported by theoretical calculations, provide insight into their efficient fluorescence.
Sota Abe +10 more
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Stereochemical Control in the Matteson Reaction
Chemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.The Matteson homologation is a highly versatile method for the stereoselective insertion of carbenoids into boronic esters. Through iterative application of the process, complex chiral molecules can be synthesized. The stereoselectivity of the reaction is determined by a chiral diol incorporated in the boronic ester.
Hae Mo Lee, Christoph Hirschhäuser
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Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.A library of 21 tetrakis(phenothiazinyl)‐substituted silanes with broadly variable substituent decoration, which are fully reversible multistage redox systems with intense tunable emission from deep blue to yellow–green (441–533 nm), was rapidly synthesized by bromine–lithium exchange/borylation–Suzuki coupling of tetrakis(4‐bromophenyl)silane or by ...
Thomas P. M. Merke +4 more
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, 1977 Dr. Michael E. Hammett, class of 1959, and Furman professor of Mathematics, at the chalkboard in his classroom. Dr.
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ChemPhotoChem, Volume 10, Issue 10, October 2026.Once regarded as highly reactive and difficult‐to‐control intermediates, monosaccharide‐derived radicals have emerged as powerful tools for selective synthesis. This review highlights how modern photocatalytic strategies enable the controlled generation of these radicals and their highly regio‐ and stereoselective transformation into structurally ...
Corentin Lefebvre, Norbert Hoffmann
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