Results 41 to 50 of about 395,400 (125)
Frontiers in Neurology, 2021 Background: Atherosclerotic disease of the internal carotid artery (ICA) is a common reason for ischemic stroke. Computed tomography angiography (CTA) is a common tool for evaluation of internal carotid artery (ICA) stenosis.
Hongying Qu +12 more
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Enhancing Electron-Nuclear Resonances by Dynamical Control Switching [PDF]
arXiv, 2023 We present a general method to realize resonant coupling between spins even though their energies are of different scales. Applying the method to the electron and nuclear spin systems such as a nitrogen-vacancy (NV) center with its nearby nuclei, we show that a specific dynamical switching of the electron spin Rabi frequency achieves efficient electron-
arxiv
Frontiers in Neurology, 2022 ObjectivePrevious studies have reliably identified iron deposition in the motor cortex as potential pathogenesis of amyotrophic lateral sclerosis (ALS).
Qianwen Li +8 more
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Generating Synthetic Radiological Images with PySynthMRI: An Open-Source Cross-Platform Tool
Tomography, 2023 Synthetic MR Imaging allows for the reconstruction of different image contrasts from a single acquisition, reducing scan times. Commercial products that implement synthetic MRI are used in research.
Luca Peretti +7 more
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Redox Biology, 2021 In this paper, we describe an assay to analyze simultaneously the oxygen consumption rate (OCR) and superoxide production in a biological system.
Donatienne d’Hose +5 more
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Dynamic nuclear polarization in a magnetic resonance force microscope experiment [PDF]
, 2016 We report achieving enhanced nuclear magnetization in a magnetic resonance force microscope experiment at 0.6 tesla and 4.2 kelvin using the dynamic nuclear polarization (DNP) effect. In our experiments a microwire coplanar waveguide delivered radiowaves to excite nuclear spins and microwaves to excite electron spins in a 250 nm thick nitroxide-doped ...
arxiv +1 more source
Development for Hardware for Programming of Spatial Magnetic Field Distributions in Nuclear Magnetic Resonance and Magnetic Resonance Imaging [PDF]
arXiv, 2012 The proposal of a project aimed on a design of hardware for programming 3D Magnetic Field shapes over sample volume in NMR and MRI is described.
arxiv
Optically Detected Magnetic Resonances of Nitrogen-Vacancy Ensembles in 13C Enriched Diamond [PDF]
, 2016 We present an experimental and theoretical study of the optically detected magnetic resonance signals for ensembles of negatively charged nitrogen-vacancy (NV) centers in 13C isotopically enriched single-crystal diamond. We observe four broad transition peaks with superimposed sharp features at zero magnetic field and study their dependence on applied ...
arxiv +1 more source
Single Spin Magnetic Resonance [PDF]
, 2016 Different approaches have improved the sensitivity of either electron or nuclear magnetic resonance to the single spin level. For optical detection it has essentially become routine to observe a single electron spin or nuclear spin. Typically, the systems in use are carefully designed to allow for single spin detection and manipulation, and of those ...
arxiv +1 more source
Structural basis for the regulation of plant transcription factor WRKY33 by the VQ protein SIB1
Communications BiologyThe WRKY transcription factors play essential roles in a variety of plant signaling pathways associated with biotic and abiotic stress response. The transcriptional activity of many WRKY members are regulated by a class of intrinsically disordered VQ ...
Xu Dong +10 more
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