Results 71 to 80 of about 4,174,780 (335)

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Role of interfacial energy anisotropy in dendrite orientation in Al-Zn alloys: A phase field study

Materials & Design, 2022
The influence of interfacial energy anisotropy on dendrite morphology is still not well understood. We investigated the dendrite morphology and solute segregation in Al-Zn alloys using the phase-field method.
Yuhong Zhao, Kexin Liu, Hua Hou, Long-Qing Chen   +3 more
doaj   +1 more source

Measuring the Alfvenic Nature of the Interstellar Medium: Velocity Anisotropy Revisited

, 2014
The dynamics of the interstellar medium (ISM) are strongly affected by turbulence, which shows increased anisotropy in the presence of a magnetic field. We expand upon the Esquivel & Lazarian method to estimate the Alfven Mach number using the structure ...
Burkhart, Blakesley, de Medeiros, J. R., Esquivel, A., Lazarian, A., Leao, I. C.   +4 more
core   +1 more source

Amplitudes of thermal and kinetic Sunyaev-Zel'dovich signals from small-scale CMB anisotropies [PDF]

, 2012
While the arcminute-scale Cosmic Microwave Background (CMB) anisotropies are due to secondary effects, point sources dominate the total anisotropy power spectrum.
Alessandro Melchiorri, Alexandre Amblard, Asantha Cooray, Francesco De Bernardis, Luca Pagano, M. Tegmark, Maria Archidiacono, Paolo Serra, R. A. Sunyaev   +8 more
core   +2 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Rock Magnetic Signature of Heterogeneities Across an Intraplate Basal Contact: An Example From the Northern Apennines

Geochemistry, Geophysics, Geosystems, 2021
Heterogeneities in the magnetic signature along intraplate shear zones complicate their correlation with the physical processes that are involved in the geodynamic evolution of megathrusts.
Claudio Robustelli Test, Elena Zanella
doaj   +1 more source

Magnetothermal instabilities in magnetized anisotropic plasmas

, 2011
Using the transport equations for an ideal anisotropic collisionless plasma derived from the Vlasov equation by the 16-moment method, we analyse the influence of pressure anisotropy exhibited by collisionless magnetized plasmas on the magnetothermal (MTI)
Balbus S A, Balbus S A, Barakat A R, Bogdanović T, Braginskii S I, Gantmacher F R, J Peralta-Ramos, M S Nakwacki, Oraevskii V, Parrish I J, Quataert E, Ruszkowski M   +11 more
core   +1 more source

A Search for Cosmic Microwave Background Anisotropies on Arcminute Scales with Bolocam [PDF]

, 2008
We have surveyed two science fields totaling one square degree with Bolocam at 2.1 mm to search for secondary CMB anisotropies caused by the Sunyaev- Zel'dovich effect (SZE). The fields are in the Lynx and Subaru/XMM SDS1 fields.
Ade, P. A. R., Aguirre, J. E., Bock, J. J., Edgington, S. F., Glenn, J., Goldin, A., Golwala, S. R., Haig, D., Lange, A. E., Laurent, G. T., Mauskopf, P. D., Nguyen, H. T., Rossinot, P., Sayers, J.   +13 more
core   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source