Results 21 to 30 of about 740,087 (250)

Integrated Positron Emission Tomography/Magnetic Resonance Imaging for Resting-State Functional and Metabolic Imaging in Human Brain: What Is Correlated and What Is Impacted

Frontiers in Neuroscience, 2022
Integrated positron emission tomography (PET)/magnetic resonance imaging (MRI) could simultaneously obtain both functional MRI (fMRI) and 18F-fluorodeoxyglucose (FDG) PET and thus provide multiparametric information for the analysis of brain metabolism ...
Yi Shan, Yi Shan, Zhe Wang, Shuangshuang Song, Shuangshuang Song, Qiaoyi Xue, Qi Ge, Hongwei Yang, Hongwei Yang, Bixiao Cui, Bixiao Cui, Miao Zhang, Miao Zhang, Yun Zhou, Jie Lu, Jie Lu   +15 more
doaj   +1 more source

Nuclear magnetic resonance cryoporometry [PDF]

, 2008
Nuclear Magnetic Resonance (NMR) cryoporometry is a technique for non-destructively determining pore size distributions in porous media through the observation of the depressed melting point of a confined liquid.
Mitchell, J., Strange, John H., Webber, J. Beau W.   +2 more
core   +1 more source

Nuclear magnetic resonance gyroscopes [PDF]

2010 IEEE Sensors, 2010
Nuclear magnetic resonance gyroscopes (NMRGs) detect rotation as a shift in the Larmor precession frequency of nuclear spins. A review of the open literature on NMRGs is presented, which includes an introduction to the spectroscopic techniques that enable NMRGs and a discussion of the design details for several specific NMRGs that have been built.
E. A. Donley, J. Kitching
openaire   +3 more sources

Assessing Lumbar Plexus and Sciatic Nerve Damage in Relapsing-Remitting Multiple Sclerosis Using Magnetisation Transfer Ratio

Frontiers in Neurology, 2021
Background: Multiple sclerosis (MS) has traditionally been regarded as a disease confined to the central nervous system (CNS). However, neuropathological, electrophysiological, and imaging studies have demonstrated that the peripheral nervous system (PNS)
Ratthaporn Boonsuth, Rebecca S. Samson, Carmen Tur, Carmen Tur, Marco Battiston, Francesco Grussu, Francesco Grussu, Francesco Grussu, Torben Schneider, Masami Yoneyama, Ferran Prados, Ferran Prados, Ferran Prados, Antrea Ttofalla, Sara Collorone, Rosa Cortese, Olga Ciccarelli, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott, Marios C. Yiannakas   +20 more
doaj   +1 more source

Reliability and Validity of Power Spectrum Slope (PSS): A Metric for Measuring Resting-State Functional Magnetic Resonance Imaging Activity of Single Voxels

Frontiers in Neuroscience, 2022
Methods that capture the features of single voxels of resting-state fMRI (RS-fMRI) could precisely localize the abnormal spontaneous activity and hence guide precise brain stimulation.
Zhenxiang Zang, Zhenxiang Zang, Yang Qiao, Shaozhen Yan, Shaozhen Yan, Jie Lu, Jie Lu   +6 more
doaj   +1 more source

First and second trimester urinary metabolic profiles and fetal growth restriction: an exploratory nested case-control study within the infant development and environment study

BMC Pregnancy and Childbirth, 2018
Background Routine prenatal care fails to identify a large proportion of women at risk of fetal growth restriction (FGR). Metabolomics, the comprehensive analysis of low molecular weight molecules (metabolites) in biological samples, can provide new and ...
Gauri Luthra, Ivan Vuckovic, A. Bangdiwala, H. Gray, J. B. Redmon, E. S. Barrett, S. Sathyanarayana, R. H. N. Nguyen, S. H. Swan, S. Zhang, P. Dzeja, S. I. Macura, K. S. Nair   +12 more
doaj   +1 more source

DNA binding mechanism of WhiB4 from Mycobacterium tuberculosis

Magnetic Resonance Letters, 2022
Mycobacterium tuberculosis (Mtb), the pathogen of tuberculosis, has latently infected about one-third of the world's population and may lead to severe clinical symptoms and death.
Qiran Zhai, Bo Duan, Chen Lin, Jun Liu, Lu Zhang, Bin Xia   +5 more
doaj   +1 more source

Fast Room-Temperature Phase Gate on a Single Nuclear Spin in Diamond

, 2014
Nuclear spins support long lived quantum coherence due to weak coupling to the environment, but are difficult to rapidly control using nuclear magnetic resonance (NMR) as a result of the small nuclear magnetic moment.
Brundage, T. O., Petta, J. R., Sangtawesin, S.   +2 more
core   +1 more source

Spin polarization contrast observed in GaAs by force-detected nuclear magnetic resonance

, 2002
We applied the recently developed technique of force-detected nuclear magnetic resonance (NMR) to observe 71Ga, 69Ga, and 75As in GaAs. The nuclear spin-lattice relaxation time is 21$\pm$5 min for 69Ga at $\sim 5$ K and 4.6 Tesla.
Fainchtein, Raul, Harrell, Lee E., Smith, Doran D., Thurber, Kent R.   +3 more
core   +1 more source

A Spectral-Scanning Nuclear Magnetic Resonance Imaging (MRI) Transceiver [PDF]

, 2009
An integrated spectral-scanning nuclear magnetic resonance imaging (MRI) transceiver is implemented in a 0.12 mum SiGe BiCMOS process. The MRI transmitter and receiver circuitry is designed specifically for small-scale surface MRI diagnostics ...
Babakhani, Aydin, Hajimiri, Ali, Hassibi, Arjang   +2 more
core   +1 more source