Results 71 to 80 of about 795,385 (294)

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji, Jianlong Zhang, Yiming Shi, Shiyu Shan, Yang Du, Guangshuo Li, Ying Jin, Yani Zhang, Chuanying Wang, Yijun Lin, Yuhao Guo, Decai Tian, Xingquan Zhao, Tian Song   +13 more
wiley   +1 more source

Structural and magnetic dimers in the spin-gapped system CuTe2O5

, 2006
We investigated the magnetic properties of the system CuTe2O5 by susceptibility and electron spin resonance measurements. The anisotropy of the effective g-factors and the ESR linewidth indicates that the anticipated structural dimer does not correspond ...
A. Abragam, A. I. Smirnov, A. Loidl, A. Pimenov, G. V. Kozlov, H. Berger, H.-A. Krug von Nidda, J. Deisenhofer, K.-S. Lee, M. Johnsson, M.-H. Whangbo, P. Lemmens, R. Kubo, R. M. Eremina, T. Gavrilova, W. E. Pickett   +15 more
core   +1 more source

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

Influence of Magnetic Repulsion on Vibration Energy Harvesting [PDF]

Port Said Engineering Research Journal, 2018
The progress in electronic devices, including the wireless sensors, leads to the great demand on powering these devices which utilize wireless sensor systems.
Nehal El-Bedwehy, Mogeeb El-Sheikh, Abla El-Megharbel, Mustafa Arafa   +3 more
doaj   +1 more source

Dynamic Exchange Coupling in Magnetic Bilayers [PDF]

Physical Review Letters, 2003
A long-ranged dynamic interaction between ferromagnetic films separated by normal-metal spacers is reported, which is communicated by nonequilibrium spin currents. It is measured by ferromagnetic resonance (FMR) and explained by an adiabatic spin-pump theory. In FMR the spin-pump mechanism of spatially separated magnetic moments leads to an appreciable
Heinrich, B. (author), Tserkovnyak, Y. (author), Woltersdorf, G. (author), Brataas, A. (author), Urban, R. (author), Bauer, G.E.W. (author)   +5 more
openaire   +5 more sources

Magnetic impurities in graphane with dehydrogenated channels

, 2012
We have investigated the electronic and magnetic response of a single Fe atom and a pair of interacting Fe atoms placed in patterned dehydrogenated channels in graphane within the framework of density functional theory.
Haldar, Soumyajyoti, Kanhere, Dilip G., Sanyal, Biplab   +2 more
core   +1 more source

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

Dynamical Magnetoelectric Coupling in Helical Magnets [PDF]

Physical Review Letters, 2007
Collective mode dynamics of the helical magnets coupled to electric polarization via spin-orbit interaction is studied theoretically. The soft modes associated with the ferroelectricity are not the transverse optical phonons, as expected from the Lyddane-Sachs-Teller relation, but are the spin waves hybridized with the electric polarization. This leads
Katsura, Hosho, Balatsky, Alexander V., Nagaosa, Naoto   +2 more
openaire   +3 more sources

Interlayer Exchange Coupling Mediated by Valence Band Electrons

, 2000
The interlayer exchange coupling mediated by valence band electrons in all-semiconductor IV-VI magnetic/nonmagnetic superlattices is studied theoretically.
A. Stachow-Wojcik, D. Chiba, G. Guentherodt, I.N. Goncharenko, J. Blinowski, J. Blinowski, J.A. Borchers, J.J. Rhyne, M. Wilczyński, N. Akiba, P. Bruno, P. Grünberg, P. Kacman, P. Shevchenko, P.J. Lin, S. Holl, S. Mathi Jaya, S.J. Cho, S.S.P. Parkin, Su-Huai Wei, T.M. Giebultowicz, T.M. Rusin, V. Nunez, V.K. Dugaev, W. A. Harrison   +24 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source