Results 51 to 60 of about 129,353 (325)

Hyperpolarized Laplace NMR [PDF]

open access: yesMagnetic Resonance in Chemistry, 2018
Laplace nuclear magnetic resonance (NMR), dealing with NMR relaxation and diffusion experiments, reveals details of molecular motion and provides chemical resolution complementary to NMR spectra. Laplace NMR has witnessed a great progress in past decades due to the development of methodology and signal processing, and it has lots of extremely ...
openaire   +4 more sources

Hyperfine structure and nuclear hyperpolarization observed in the bound exciton luminescence of Bi donors in natural Si [PDF]

open access: yes, 2010
As the deepest group V donor in Si, Bi has by far the largest hyperfine interaction, and also a large I=9/2 nuclear spin. At zero field this splits the donor ground state into states having total spin 5 and 4, which are fully resolved in the ...
Abrosimov, N. V.   +6 more
core   +1 more source

Hyperpolarizing DNA Nucleobases via NMR Signal Amplification by Reversible Exchange

open access: yesMolecules, 2023
The present work investigates the potential for enhancing the NMR signals of DNA nucleobases by parahydrogen-based hyperpolarization. Signal amplification by reversible exchange (SABRE) and SABRE in Shield Enables Alignment Transfer to Heteronuclei ...
Bryce E. Kidd   +10 more
doaj   +1 more source

Cromakalim (BRL 34915) restores in vitro the membrane potential of depolarized human skeletal muscle fibres [PDF]

open access: yes, 1989
The purpose of the present study was to analyze the effects of cromakalim (BRL 34915), a potent drug from a new class of drugs characterized as K+ channel openers, on the electrical activity of human skeletal muscle.
Grafe, Peter   +2 more
core   +1 more source

Hyperpolarized fumarate via parahydrogen [PDF]

open access: yesChemical Communications, 2018
We produce hyperpolarized [1-13C]fumarate in the proton nuclear spin singlet state by pairwise trans-addition of parahydrogen to a molecular precursor using a ruthenium-based catalyst in water.
Barbara Ripka   +5 more
openaire   +6 more sources

Helix breaking transition in the S4 of HCN channel is critical for hyperpolarization-dependent gating

open access: yeseLife, 2019
In contrast to most voltage-gated ion channels, hyperpolarization- and cAMP gated (HCN) ion channels open on hyperpolarization. Structure-function studies show that the voltage-sensor of HCN channels are unique but the mechanisms that determine gating ...
M. Kasimova   +6 more
semanticscholar   +1 more source

A Weighted Balance Model of Opinion Hyperpolarization

open access: yesJournal of Artificial Societies and Social Simulation, 2019
Polarization is threatening the stability of democratic societies. Until now, polarization research has mainly focused on opinion extremeness, disregarding the correlation between different policy issues.
Simon Schweighofer   +2 more
semanticscholar   +1 more source

A low-voltage activated, transient calcium current is responsible for the time-dependent depolarizing inward rectification of rat neocortical neurons in vitro [PDF]

open access: yes, 1987
Intracellular recordings were obtained from rat neocortical neurons in vitro. The current-voltage-relationship of the neuronal membrane was investigated using current- and single-electrode-voltage-clamp techniques.
A Constanti   +37 more
core   +1 more source

Developing hyperpolarized metabolic contrast agents at high field dDNP for large animal research

open access: yesJournal of Magnetic Resonance Open
Dissolution Dynamic Nuclear Polarization (dDNP) polarizers have achieved high field strengths and large sample volumes. These advancements necessitate new formulations of hyperpolarized metabolic contrast agents (HMCAs) to enable large animal studies ...
Ditte B. Christensen   +4 more
doaj   +1 more source

From Free Radicals and Spin-Chemistry Over Spin-Dynamics and Hyperpolarization to Biology and Materials Science [PDF]

open access: yes, 2017
This special issue of ZPC is dedicated to the 80th anniversary of Kev Salikhov, a prominent scientist who has made seminal contributions to spin chemistry, chemical kinetics, spin hyperpolarization and magnetic resonance.
Buntkowsky, Gerd   +2 more
core   +1 more source

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