Results 71 to 80 of about 20,087 (300)

Imidazopurinones are markers of physiological genomic damage linked to DNA instability and glyoxalase 1-associated tumour multidrug resistance [PDF]

open access: yes, 2010
Glyoxal and methylglyoxal are reactive dicarbonyl metabolites formed and metabolized in physiological systems. Increased exposure to these dicarbonyls is linked to mutagenesis and cytotoxicity and enhanced dicarbonyl metabolism by overexpression of ...
Baynes   +48 more
core   +2 more sources

THE STEREOCHEMISTRY AND CONFORMATION OF LIGNIN AS JUDGED BY X-RAY CRYSTALLOGRAPHIC INVESTIGATIONS OF LIGNIN MODEL COMPOUNDS: ARYLGLYCEROL BETA-GUAIACYL ETHERS

open access: yesBioResources, 2007
The conformations of a variety of crystalline lignin models representing different diastereomeric forms of structural elements in lignin of the arylglycerol -guaiacyl ether type have been studied using X-ray crystallography.
Jim Parkås   +2 more
doaj  

Visible thermochromism in vanadium pentoxide coatings [PDF]

open access: yes, 2017
Although di-vanadium pentoxide (V2O5) has been a candidate of extensive research for over half a century, its intrinsic thermochromism has not been reported so far.
Bahlawane, Naoufal   +3 more
core   +1 more source

Stereochemical Dissection of the Strobilurin PKS Reveals the Complex Biosynthetic Logic of Iterative EZE Triene Construction

open access: yesAngewandte Chemie International Edition, EarlyView.
The strobilurin iterative PKS assembles a remarkable EZE triene by varying its stereoselectivity during synthesis. Stereoselective 2R‐methylation of the triketide intermediate by the C‐terminal C‐methyltransferase domain induces the KR and DH domains to invert their native stereoselectivities and produce a Z‐configured intermediate.
Maurice Hauser   +5 more
wiley   +1 more source

Stereoisomeric engineering mediated zinc metal electrodeposition: Critical balance of solvation and adsorption capability

open access: yesAdvanced Powder Materials
The exceptional electrochemical performance of zinc anodes is frequently impeded by inadequate deposition kinetics and interfacial chemistry. Herein, we introduce the stereoisomerism to inform the balanced selection of electrolyte additives, taking into ...
Wen Liu   +9 more
doaj   +1 more source

As nove premissas anestesiológicas da Bíblia Las nueve premisas anestesiológicas de la Biblia Nine Biblical anesthetic premises

open access: yesRevista Brasileira de Anestesiologia, 2003
JUSTIFICATIVA E OBJETIVOS: Os autores fazem uma análise histórica de nove premissas inerentes à prática anestésica que já estão referenciadas na Bíblia há mais de 3.000 anos (Velho Testamento).
Nilton Bezerra do Vale, José Delfino
doaj   +1 more source

planar stereoisomerism

open access: yes, 2019
Citation: 'planar stereoisomerism' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04684 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Alkali cation-π interactions in aqueous systems, modulating supramolecular stereoisomerism of nanoscopic metal-organic capsules

open access: yesNature Communications
Contrary to common chemical intuition, cation-π interactions can persist in polar, aqueous reaction solutions, rather than in dry non-coordinative solvent systems.
Paul Wix   +8 more
doaj   +1 more source

Warum sind Enzyme Makromoleküle?

open access: yesCHIMIA, 1983
The paper is devoted to the question wheter the macromolecular structure is really essential for the chemical and biological qualities of enzymes. Recognizing that high molecular weight compounds are relevant both in nature and in modern technology, the
P.L. Luisi
doaj   +1 more source

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