Results 181 to 190 of about 9,630 (218)

The faintest, extremely variable X-ray tidal disruption event from a supermassive black hole binary? [PDF]

Innovation (Camb)
Huang M, Xue Y, Li S, Liu F, Zhu S, Chen JH, Shen RF, Wang Y, Yang Y, Jiang N, Bauer FE, Vignali C, Zou F, Wang J, Filippenko AV, Luo B, Qin C, Quirola-Vásquez J, Wang JX, Fan L, Sun M, Wu Q, Ni Q, Brink TG, Wang T, Zheng W, Shu X, Zheng X, Lin X, Kong X, Wang Y, Luo Y, Lin Z.   +32 more
europepmc   +1 more source

Whole‐Brain Diffusion MRI at 7T With Universal Multiband GRAPE pTx Pulses

Magnetic Resonance in Medicine, EarlyView.
Purpose To improve signal strength and homogeneity of whole‐brain diffusion‐weighted imaging (DWI) at 7T. Methods Universal multiband excitation and refocusing pulses were optimized with the gradient ascent pulse engineering (GRAPE) algorithm across a database of B1+$$ {B}_1^{+} $$ and B0$$ {B}_0 $$ maps obtained from 20 subjects.
Marten Laufenberg, Daniel Löwen, Mónica Ferreira, Nicolas Boulant, Jennifer Faber, Tony Stöcker   +5 more
wiley   +1 more source

Machine learning-enabled membership determination of open cluster AH03_J0748-26.9 using Gaia DR3 astrometry. [PDF]

Sci Rep
Badawy WA, Abdel Rahman HI.
europepmc   +1 more source

Predicting Mesoscopic Larmor Frequency Shifts in Ex Vivo Porcine Optic Nerve

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Larmor frequency shifts in white matter (WM) vary with fiber orientation due to anisotropic microstructure. Since clinical voxels are significantly larger than these microscopic frequency variations, the measured signal represents a bulk average of local shifts.
Anders Dyhr Sandgaard, André Pampel, Roland Müller, Niklas Wallstein, Toralf Mildner, Carsten Jäger, Markus Morawski, Aage Kristian Olsen Alstrup, Harald E. Möller, Sune Nørhøj Jespersen   +9 more
wiley   +1 more source

Theoretical Calculation Study of Nanomaterials. [PDF]

Nanomaterials (Basel)
Duan Y, Halley JW.
europepmc   +1 more source

Dual‐Tuned 31P‐1H Dual‐Row Loop/Dipole 32‐Element Transceiver Array for Human Brain Spectroscopy at 9.4T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The goal of this work is to develop and evaluate a single‐layer tight‐fit 32‐element dual‐tuned (DT) loop/dipole transceiver (TxRx) array for human brain 31P MRS(I) at 9.4T, achieving full‐brain coverage and reasonable transmit and receive performance at both frequencies.
G. A. Solomakha, R. Pohmann, F. Glang, S. Mueller, P. I. Valsala, T. Platt, S. Orzada, M. E. Ladd, A. Korzowski, K. Scheffler, N. I. Avdievich   +10 more
wiley   +1 more source

Isotopic evidence for a cold and distant origin of 3I/ATLAS. [PDF]

Nature
Cordiner M, Roth NX, Micheli M, Villanueva G, Farnocchia D, Charnley S, Biver N, Bockelée-Morvan D, Bodewits D, Chandler CO, Crovisier J, Drozdovskaya MN, Furuya K, Kelley MSP, Milam S, Noonan JW, Opitom C, Schwamb ME, Thomas CA.   +18 more
europepmc   +1 more source

Toward Brain Biosignature at 7 T—Repeatability of a Multiparametric CEST, QSM, QTI, and Sodium Imaging Protocol

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate the repeatability of an extended multiparametric 7 T MRI protocol for voxel‐wise tissue characterization combining morphological, CEST, QSM, QTI, and Sodium contrasts. Methods A repeatability study was performed in 12 volunteers without diagnosed neurological disease on a 7 T MRI system, using a comprehensive acquisition ...
Annika Hofmann, Martin Freudensprung, Lion Mücke, Tobias Wilferth, Zijin Yang, Dominik Perrin, Julius Glaser, Katharina Tkotz, Magda Duarte, Simon Weinmüller, Oliver Chaudry, Annemarie Wirth, Angelika Mennecke, Oliver Gödicke, Patrick Liebig, Lena V. Gast, Philipp Ehses, Clemens Stilianu, Rudolf Stollberger, Jannis Hanspach, Alexander German, Jürgen Winkler, Michael Uder, Arnd Doerfler, Sebastian Bickelhaupt, Andreas Maier, Katharina Breininger, Moritz Zaiss, Armin M. Nagel, Frederik B. Laun, Florian Knoll   +30 more
wiley   +1 more source

Verification of quantum biological predictions for weak magnetic field effects on superoxide in planarians. [PDF]

PNAS Nexus
Rishabh R, Vučković J, Zadeh-Haghighi H, Beane WS, Simon C.   +4 more
europepmc   +1 more source

Frequency-Time Harmonization of Multi-Station Spectrograms for Machine Learning Applications in Solar Radio Burst Analysis. [PDF]

Sensors (Basel)
Hristov V, Popov A, Velchev Y, Petkov PZ, Monstein C.   +4 more
europepmc   +1 more source