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A kinetic investigation of the lanthanide DOTA chelates. Stability and rates of formation and of dissociation of a macrocyclic gadolinium(III) polyaza polycarboxylic MRI contrast agent

Xiangyun Wang、Tianzhu Jin、Vinciane Comblin 等 6 位作者1992-03-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA kinetic investigation of the lanthanide DOTA chelates. Stability and rates of formation and of dissociation of a macrocyclic gadolinium(III) polyaza polycarboxylic MRI contrast agentXiangyun Wang, Tianzhu Jin, Vinciane Comblin, Antonio Lopez-Mut, Emile Merciny, and Jean F.…

Radioactive element chemistry and processingLanthanide and Transition Metal ComplexesMagnetism in coordination complexes

Ca2+ binding and conformational change in two series of point mutations to the individual Ca(2+)-binding sites of calmodulin.

John F. Maune、Claude B. Klee、Kathleen Beckingham1992-03-01Journal of Biological Chemistry

Two series of site-directed mutations to the individual Ca(2+)-binding sites of Drosophila melanogaster calmodulin have been generated and studied. In each mutant, a conserved glutamic acid residue at position 12 in all of the Ca(2+)-binding loops has been mutated in one site. In one series the residue is changed to g…

Protein Structure and DynamicsEnzyme Structure and FunctionDNA and Nucleic Acid Chemistry

Arginine residues as stabilizing elements in proteins

Nadir T. Mrabet、Annemie Van den Broeck、Ilse Van den Brande 等 9 位作者1992-03-01Biochemistry

Site-specific substitutions of arginine for lysine in the thermostable D-xylose isomerase (XI) from Actinoplanes missouriensis are shown to impart significant heat stability enhancement in the presence of sugar substrates most probably by interfering with nonenzymatic glycation. The same substitutions are also found t…

Biochemical and Molecular ResearchMicrobial metabolism and enzyme functionEnzyme Structure and Function

Oligothiophene cation radical dimers. An alternative to bipolarons in oxidized polythiophene

Michael G. Hill、Kent R. Mann、Larry L. Miller 等 4 位作者1992-03-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOligothiophene cation radical dimers. An alternative to bipolarons in oxidized polythiopheneMichael G. Hill, Kent R. Mann, Larry L. Miller, and Jean Francois PenneauCite this: J. Am. Chem. Soc. 1992, 114, 7, 2728–2730Publication Date (Print):March 1, 1992Publication History…

Conducting polymers and applicationsOrganic Electronics and PhotovoltaicsPhotochemistry and Electron Transfer Studies

Testing mode-coupling predictions for α and β relaxation inCa0.4K0.6(NO3)1.4near the liquid-glass transition by light scattering

G. Li、Weimin Du、X. K. Chen 等 5 位作者1992-03-01Physical Review A

Light-scattering studies of the liquid-glass transition of ${\mathrm{Ca}}_{0.4}$${\mathrm{K}}_{0.6}$(${\mathrm{NO}}_{3}$${)}_{1.4}$ have been carried out from 305 to 23\ifmmode^\circ\else\textdegree\fi{}C. Composite spectra covering over four decades in frequency were obtained by combining data obtained with a Sanderc…

Glass properties and applicationsPhotochemistry and Electron Transfer StudiesMaterial Dynamics and Properties

The role of analysis in the rate processes

Stuart W. Churchill1992-03-01Industrial & Engineering Chemistry Research

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe role of analysis in the rate processesStuart W. ChurchillCite this: Ind. Eng. Chem. Res. 1992, 31, 3, 643–658Publication Date (Print):March 1, 1992Publication History Published online1 May 2002Published inissue 1 March 1992https://pubs.acs.org/doi/10.1021/ie00003a002http…

Crystallization and Solubility Studies

Dosification of a cement-talc-chamotte refractory mortar subjected to thermal shock

P. Kittl、G. Díaz、H. Alarcón1992-03-01Materiales de Construccion

A cement-talc-chamotte refractory mixture was dosified by subjecting the same to thermal shock. To this end, specimens compacted to 350 Kg/cm2 through compression as well as specimens compacted manually were prepared. All the specimens were submitted to an initial working temperature of 1000ºC and then left to cool do…

Microchemical identification of macael white marble in some spanish monuments

M. A. Bello、L. Martin、A. Martin1992-03-01Materiales de Construccion

The white marble from Macael quarries (Almería, Spain) has been identified in some monuments of the Southern of Spain; the use of other white marble types has also been confirmed. The microchemical identification has been carried out by means a previously described graphical method (Bello and Martín,1991). Fourteen tr…

Titelei

作者信息未提供1992-03-01Applied Rheology

Editorial

Equipo Editorial1992-03-01Materiales de Construccion

Predicting time to failure in bending of wood particleboards under cyclic humidity conditions

J. I. Fernández-Golfín Seco、M. R. Díez Barra1992-03-01Materiales de Construccion

Time to failure tests under constant load (30, 40, 50 and 60 % stress levels) were conducted on four different 19 mm thick particleboards with three layers. Two of them were uncoated (UF and MUF bonded) and the rest were melamine (80 g/m2) and veneer (Mukally) overlaid. Tests were carried out in cyclic humidity condit…