Results 11 to 20 of about 61,022 (308)
Electrical Pacing of Cardiac Tissue Including Potassium Inward Rectification. [PDF]
PLoS ONE, 2015 In this study cardiac tissue is stimulated electrically through a small unipolar electrode. Numerical simulations predict that around an electrode are adjacent regions of depolarization and hyperpolarization.
Suran Galappaththige, Bradley J Roth
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Non-Invasive Analysis of Human Liver Metabolism by Magnetic Resonance Spectroscopy
Metabolites, 2021 The liver is a key node of whole-body nutrient and fuel metabolism and is also the principal site for detoxification of xenobiotic compounds. As such, hepatic metabolite concentrations and/or turnover rates inform on the status of both hepatic and ...
John G. Jones
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Metabolites, 2022 The liver plays an important role in whole-body glucose homeostasis by taking up glucose from and releasing glucose into the blood circulation. In the postprandial state, excess glucose in the blood circulation is stored in hepatocytes as glycogen.
Ayhan Gursan, Jeanine J. Prompers
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RNA interference reveals the escape response mechanism of Paramecium to mechanical stimulation
Biophysics and Physicobiology, 2023 In Paramecium, a mechanical stimulus applied to the posterior portion of the cell causes a transient increase in membrane permeability to potassium ions, transiently rendering the membrane in a hyperpolarized state.
Manabu Hori +3 more
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Molecules, 2022 Majority of dynamic nuclear polarization (DNP) experiments have been requiring helium cryogenics and strong magnetic fields for a high degree of nuclear polarization. In this work, we instead demonstrate an optical hyperpolarization of naturally abundant
Vladimir V. Kavtanyuk +4 more
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Molecules, 2022 We present a pilot quality assurance (QA) study of a clinical-scale, automated, third-generation (GEN-3) 129Xe hyperpolarizer employing batch-mode spin-exchange optical pumping (SEOP) with high-Xe densities (50% natural abundance Xe and 50% N2 in ~2.6 ...
Jonathan R. Birchall +7 more
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Signaling Roleplay between Ion Channels during Mammalian Sperm Capacitation
Biomedicines, 2023 In order to accomplish their primary goal, mammalian spermatozoa must undergo a series of physiological, biochemical, and functional changes crucial for the acquisition of fertilization ability.
Filip Benko +3 more
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Spin Hyperpolarization in Modern Magnetic Resonance
, 2022 Magnetic resonance techniques are successfully utilized in a broad range of scientific disciplines and in a number of practical applications, with medical MRI being the most widely-known example. Currently, both fundamental and applied magnetic resonance
Jeffrey A., Reimer +12 more
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Micro-Slab Coil Design for Hyperpolarized Metabolic Flux Analysis in Multiple Samples
Bioengineering, 2022 Abnormal metabolism is a hallmark of cancer cells. Accumulating evidence suggests that metabolic changes are likely to occur before other cellular responses in cancer cells upon drug treatment.
Geonhui Lee +7 more
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Hyperpolarized para-Ethanol [PDF]
The Journal of Physical Chemistry B, 2015 We show that an imbalance between the populations of singlet (S) and triplet (T) states in pairs of magnetically equivalent spins can be generated by dissolution dynamic nudear polarization: In partly deuterated ethanol ((CD3CH2OD)-C-13), this T/S imbalance can be transferred by cross-relaxation to observable, enhanced signals of protons and coupled C ...
Mammoli, Daniele +6 more
openaire +4 more sources