Results 31 to 40 of about 388,039 (180)

Insights Into the Known 13C Depletion of Methane—Contribution of the Kinetic Isotope Effects on the Serine Hydroxymethyltransferase Reaction

open access: yesFrontiers in Chemistry, 2022
We determined the kinetic isotope effect on the serine hydroxymethyltransferase reaction (SHMT), which provides important C1 metabolites that are essential for the biosynthesis of DNA bases, O-methyl groups of lignin and methane. An isotope effect on the
Gerd Gleixner
doaj   +1 more source

Critical temperature and giant isotope effect in presence of paramagnons [PDF]

open access: yes, 2005
We reconsider the long-standing problem of the effect of spin fluctuations on the critical temperature and isotope effect in a phonon-mediated superconductor.
A. A. Golubov   +10 more
core   +7 more sources

Dynamical Mean-Field Theory of Electron-Phonon Interactions in Correlated Systems: Application to Isotope Effects on Electronic Properties

open access: yes, 2002
We use a recently developed formalism (combining an adiabatic expansion and dynamical mean-field theory) to obtain expressions for isotope effects on electronic properties in correlated systems.
A. Deppeler   +31 more
core   +1 more source

Isotope effects and possible pairing mechanism in optimally doped cuprate superconductors

open access: yes, 2002
We have studied the oxygen-isotope effects on T_{c} and in-plane penetration depth \lambda_{ab}(0) in an optimally doped 3-layer cuprate Bi_{1.6}Pb_{0.4}Sr_{2}Ca_{2}Cu_{3}O_{10+y} (T_{c} \sim 107 K).
A. Bill   +27 more
core   +1 more source

The oxygen isotope effect on critical temperature in superconducting copper oxides [PDF]

open access: yes, 2004
The isotope effect provided a crucial key to the development of the BCS (Bardeen-Cooper-Schrieffer) microscopic theory of superconductivity for conventional superconductors.
A Mourachkine   +8 more
core   +1 more source

A summary of the 10th Asia-Pacific Transport Working Group (APTWG) meeting

open access: yesNuclear Fusion
This conference report summarizes contributed papers and discussions presented at the 10th Asia-Pacific Transport Working Group (APTWG) held at Hanyang University, Seoul, South Korea from 13 to 16 June 2023.
W. Lee   +6 more
doaj   +1 more source

Development of the Direct Deuteration Method for Amino Acids and Characterization of Deuterated Tryptophan

open access: yesBioengineering
Proteins and peptides are vital biomolecules, and deuterated amino acids are increasingly applied in areas such as drug discovery, metabolic tracing, and neutron scattering studies.
Chie Shibazaki   +6 more
doaj   +1 more source

Magnetic isotope effect [PDF]

open access: yesNature, 1990
The electron spin selectivity of radical reactions is accompanied by nuclear spin selectivity, i.e., sorting of the isotopic nuclei relative to their magnetic moment. This property of spin-selective reactions produces separation of magnetic and nonmagnetic isotopes known as the magnetic isotope effect.
EUGENII N. STEP   +2 more
openaire   +1 more source

Isotope-Selective Hydrogen-Bond Network Modulations at Plasmonic Gold Nanoparticle Interfaces Probed by Near-Infrared Spectroscopy

open access: yesElectrochemistry
Localized surface plasmon resonance (LSPR) in metal nanostructures generates intense, spatially confined electric fields. At the present stage, direct experimental evidence for LSPR-induced perturbations at solid–liquid interfaces remains limited.
Hiro MINAMIMOTO   +3 more
doaj   +1 more source

The Isotope Effect in Superconductors

open access: yes, 1998
We review some aspects of the isotope effect (IE) in superconductors. Our focus is on the influence of factors not related to the pairing mechanism. After summarizing the main results obtained for conventional superconductors, we review the effect of ...
Abrikosov   +32 more
core   +2 more sources

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