Results 221 to 230 of about 2,005,952 (304)

Refined chronologies of magnetochron M0r reveal asynchronous terrestrial and marine carbon isotope responses to Oceanic Anoxic Event 1a. [PDF]

Sci Adv
Lu GM, Shen ZS, Deng CL, Ogg JG, Sun MD, Li MS, Qin HF, Zhu RX, Zhou ZH, Xu YG.   +9 more
europepmc   +1 more source

EM Simulation Model of a Clinically‐Used RF Head Coil at 7 T

Magnetic Resonance in Medicine, EarlyView.
This article has been temporarily removed pending the resolution of a potential legal issue.
Dora Ozkara, Iris Yazici, Elnaz Mahmoudi Mahmoudalilou, Sascha Brunheim, Lance DelaBarre, Tony Stöcker, Yigitcan Eryaman, Ergin Atalar   +7 more
wiley   +1 more source

Hydrogen-carbon doubly superionic conduits of carbonic acids in planetary ices. [PDF]

Sci Adv
Deng J, Gou H, Hu Q.
europepmc   +1 more source

Human In Vivo Validation of Frequency‐Dependent QTI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The aim of this work is to investigate if q‐space trajectory imaging (QTI) waveforms can be designed to probe QTI metrics at a single centroid frequency under realistic experimental conditions for in vivo human brain imaging. Methods Realistic diffusion encoding waveforms based on double‐rotation gradient waveform and magic‐angle ...
Svenja Niesen, Marten Veldmann, Ali Ajouz, Tony Stöcker   +3 more
wiley   +1 more source

Chemistry in Extreme Environments: The Mystery of Molecular Complexity in Space. [PDF]

ACS Cent Sci
Puzzarini C, Alessandrini S.
europepmc   +1 more source

Deep Learning Improves Robustness of Voxelwise Kinetic Modeling for Hyperpolarized Carbon‐13 MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate whether deep learning improves the robustness of voxelwise kinetic parameter estimation from hyperpolarized (HP) 13C MRI compared with nonlinear least‐squares (NLLS) fitting. Methods A hybrid neural network (NN) was trained on synthetic pyruvate/lactate time courses generated from an open‐system two‐compartment HP 13C ...
Kofi Deh, Yeona Kang, Tsang‐Wei Tu, Rania Jones, Curtiland Deville, Rao Khan   +5 more
wiley   +1 more source

Computational perspective on structure, energetics, and bonding of FeC₂O isomers with astrochemical significance. [PDF]

Front Chem
R J A, Rajasabai SP.
europepmc   +1 more source

Free‐Breathing Hepatic Oxygen Extraction Fraction (OEF) Mapping Using Radial GESSE

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Noninvasive assessment of hepatic oxygenation is relevant for evaluating liver both in acute and long‐term liver pathologies. However, existing methods are limited to single‐slice acquisitions and require breath‐holding. This study aims to develop and evaluate a motion‐robust technique for whole‐liver oxygen extraction fraction (OEF ...
Ke Zhang, Simon M. F. Triphan, Felix T. Kurz, Congcong Fu, Na Zhang, Christian H. Ziener, Mark E. Ladd, Heinz‐Peter Schlemmer, Hans‐Ulrich Kauczor, Oliver Sedlaczek   +9 more
wiley   +1 more source

Precession-induced millennial climate cycles in greenhouse Cretaceous. [PDF]

Nat Commun
Zhang Z, Huang Y, Wang T, Yin Q, Da Silva AC, Lee EY, Yang H, Ma C, Cheng H, Berger A, Wang C.   +10 more
europepmc   +1 more source

Evaluation of 7 Tesla pTx Body Coils Regarding Transmit and Receive Performance

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Most sites develop and use custom coils for 7 T body MRI since no standard pTx body coil exists, leading to diverse coil designs differing in transmit element type, layout, and number of receive channels. This study investigates and compares eight existing coils, including one remote body coil array and seven local arrays, regarding ...
Johannes A. Grimm, Oliver Kraff, Markus W. May, Max Lutz, Stephan Orzada, Thomas M. Fiedler, Steen Moeller, Simon Schmidt, Harald H. Quick, Armin M. Nagel, Mark E. Ladd, Sebastian Schmitter   +11 more
wiley   +1 more source