Results 71 to 80 of about 197,943 (293)

Neutron spin echo spectroscopy with a moving sample

Scientific Reports, 2023
Neutron spin echo spectroscopy is a high resolution inelastic neutron scattering method probing nanosecond dynamics. It is well suited to study the atomistic motion in polymer systems and contributes to our understanding of viscoelasticity.
Manuchar Gvaramia, Philipp Gutfreund, Peter Falus, Antonio Faraone, Michihiro Nagao, Max Wolff   +5 more
doaj   +1 more source

Spin Dynamics near the Superconductor-to-Insulator Transition in Impurity-Doped YBa2Cu4O8

, 2001
We studied low-frequency spin dynamics near the impurity-induced superconductor-to-insulator transition for underdoped high-Tc superconductor YBa2(Cu1-xMx)4O8 (M=Ni, Zn) using the Cu nuclear quadrupole resonance (NQR) spin-echo technique.
Bobroff J., Carretta P., Fisher M. P. A., Fukuzumi Y., Fuller S. E., Itoh Y., Julien J.-H., Kakurai K., Mahajan A. V., Mahajan A. V., McHenry M. R., Miyatake T., Thayamballi P., Uchinokura K., Walstedt R. E., Watanabe N., Williams G. V. M., Williams G. V. M., Williams G. V. M., Zheng G.-q.   +19 more
core   +1 more source

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz, Carl D. Langefeld, Mary E. Comeau, Miranda C. Marion, Tyler P. Behymer, Lee A. Gilkerson, Padmini Sekar, Weihong Yuan, Vivek Khandwala, Brady J. Williamson, Thomas Maloney, Achala Vagal, Pierce Boyne, Kari Dunning, Matthew L. Flaherty, Steven J. Kittner, Prachi Mehndiratta, Gunjan Y. Parikh, Michael L. James, David Roh, Fernando D. Testai, Farhaan S. Vahidy, James Thornton, Ranjit Bagga, Daniel Woo, Stacie L. Demel   +25 more
wiley   +1 more source

Revealing of Li-Ion Transportation in Crystal Lattices by 7Li SAE in Solid-State NMR

Chinese Journal of Magnetic Resonance, 2020
Spin alignment echo (SAE) is employed here to study the α-LiAsF6/PEO6 system with low poly(ethylene oxide) (PEO) molecular weight. We show that the correlation rate kSAE from SAE experiments, but not the spin-lattice relaxation time and the linewidth, is
ZHANG Wei, LIU Qing-hua, WANG Jian-yin, CHEN Qun, HU Bing-wen   +4 more
doaj   +1 more source

Resting state BOLD functional connectivity at 3T: spin echo versus gradient echo EPI. [PDF]

PLoS ONE, 2015
Previous evidence showed that, due to refocusing of static dephasing effects around large vessels, spin-echo (SE) BOLD signals offer an increased linearity and promptness with respect to gradient-echo (GE) acquisition, even at low field.
Piero Chiacchiaretta, Antonio Ferretti
doaj   +1 more source

Demonstration of atomic frequency comb memory for light with spin-wave storage

, 2010
We present a light-storage experiment in a praseodymium-doped crystal where the light is mapped onto an inhomogeneously broadened optical transition shaped into an atomic frequency comb.
Afzelius, Mikael, Amari, Atia,, de Riedmatten, Hugues, Gisin, Nicolas, Kröll, Stefan,, Lauritzen, Bjoern, Lund University., Lund University., Minar, Jiri, Sangouard, Nicolas, Simon, Christoph, Usmani, Imam, Walther, Andreas,   +12 more
core   +2 more sources

Glymphatic Dysfunction Reflects Post‐Concussion Symptoms: Changes Within 1 Month and After 3 Months

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mild traumatic brain injury (mTBI) may alter glymphatic function; however, its progression and variability remain obscure. This study examined glymphatic function following mTBI within 1 month and after 3 months post‐injury to determine whether variations in glymphatic function are associated with post‐traumatic symptom severity ...
Eunkyung Kim, Han Gil Seo, Roh‐Eul Yoo, Byung‐Mo Oh   +3 more
wiley   +1 more source

Photon Echo from Lensing of Fractional Excitations in Tomonaga-Luttinger Spin Liquid

Physical Review X, 2021
We study theoretically the nonlinear optical response of Tomonaga-Luttinger spin liquid in the context of terahertz (THz) two-dimensional coherent spectroscopy (2DCS).
Zi-Long Li, Masaki Oshikawa, Yuan Wan
doaj   +1 more source

Hahn echo and criticality in spin-chain systems

, 2006
We establish a relation between Hahn spin-echo of a spin-$\frac 1 2 $ particle and quantum phase transition in a spin-chain, which couples to the particle. The Hahn echo is calculated and discussed at zero as well as at finite temperatures.
Barouch, Carollo, Chen, effects, Gu, H. Wang, Hahn, Kopp, Osterloh, Ou, Quan, Rossini, Vidal, W. Wang, Witzel, Wu, X. X. Yi, Zanardi, Zhu   +18 more
core   +1 more source

Characterization of Clinical Phenotype to Glial Fibrillary Acidic Protein Concentrations in Alexander Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the concentration of glial fibrillary acidic protein (GFAP) in cerebrospinal fluid (CSF) and plasma in Alexander disease (AxD) and whether GFAP levels are predictive of disease phenotypes. Methods CSF and plasma were collected (longitudinally when available) from AxD participants and non‐AxD controls.
Amy T. Waldman, Asako Takanohashi, Joshua Y. Joung, Geraldine W. Liu, Kaley Arnold, Amy Pizzino, Walter Faig, Sarah Woidill, Sona Narula, Adeline L. Vanderver   +9 more
wiley   +1 more source