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Intrinsic Solution to the Dilemma between High-Efficiency and External-Field-Free Spin-Orbit Torque Switching Based on Biaxial Devices.
Nano Lett
January 2025
School of Microelectronics, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Spin-orbit torque (SOT) is widely considered to be a fast and robust writing scheme for magnetic random-access memories (MRAMs). However, the requirements of field-free switching and high switching efficiency are often incompatible in SOT devices, placing a critical challenge on its improvement. Here we propose that by utilizing biaxial systems the dilemma between high-efficiency and external-field-free SOT switching can be solved intrinsically.
View Article and Find Full Text PDFBlind spots in brain imaging: a pictorial essay.
Quant Imaging Med Surg
January 2025
Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Currently, radiologists must interpret large quantities of images and identify diseases on a daily basis. The minimization of errors is crucial for high-quality diagnostic imaging and optimal patient care. Brain imaging is frequently used in clinical practice; however, radiologists are prone to overlook some regions in brain imaging and make perceptual errors, thus leading to missed diagnoses.
View Article and Find Full Text PDFUsing NMR Spectroscopy to Evaluate Metal-Ligand Bond Covalency for the f Elements.
Acc Chem Res
January 2025
Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States.
ConspectusUnderstanding f element-ligand covalency is at the center of efforts to design new separations schemes for spent nuclear fuel, and is therefore of signficant fundamental and practical importance. Considerable effort has been invested into quantifying covalency in f element-ligand bonding. Over the past decade, numerous studies have employed a variety of techniques to study covalency, including XANES, EPR, and optical spectroscopies, as well as X-ray crystallography.
View Article and Find Full Text PDFAmygdala-centered fusional connections characterized nonmotor symptoms in Parkinson's disease.
Cereb Cortex
January 2025
The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Mathematical Sciences, University of Electronic Science and Technology of China, No. 2006, Xiyuan Ave, West Hi-Tech Zone, Chengdu 611731, P. R. China.
The importance of nonmotor symptoms in understanding the pathogenesis of the heterogeneity of Parkinson's disease has been highlighted. However, the validation of specific brain network biomarkers in nonmotor symptom subtypes is currently lacking. By performing a new approach to compute functional connectivity with structural prior using magnetic resonance imaging, the present study computed both functional connectivity and fusional connectivity features in the nonmotor symptom subtypes of Parkinson's disease, one characterized by cognitive impairment with late onset and the other depression with early onset.
View Article and Find Full Text PDFMesenchymal chondrosarcoma of maxilla misdiagnosed as a benign fibrous lesion: A rare case report from Syria.
Int J Surg Case Rep
January 2025
Faculty of Medicine, University of Damascus, Damascus, Syrian Arab Republic.
Introduction: Mesenchymal chondrosarcoma (MC) is a high-grade variant of chondrosarcoma, essentially composed of poorly differentiated spindle cells interspersed with areas of cartilage or chondroid matrix. MC is extremely rare; it only accounts for 0.1 % of head and neck tumors and for only 1 % of all chondrosarcomas (CSs).
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