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Degeneracy-breaking and long-lived multimode microwave electromechanical systems enabled by cubic silicon-carbide membrane crystals.
Nat Commun
January 2025
School of Integrated Circuits and Frontier Science Center for Quantum Information, Tsinghua University, Beijing, China.
Cubic silicon-carbide crystals (3C-SiC), known for their high thermal conductivity and in-plane stress, hold significant promise for the development of high-quality (Q) mechanical oscillators. We reveal degeneracy-breaking phenomena in 3C-phase crystalline silicon-carbide membrane and present high-Q mechanical modes in pairs or clusters. The 3C-SiC material demonstrates excellent microwave compatibility with superconducting circuits.
View Article and Find Full Text PDFDouble-blind, randomized, placebo-controlled pilot clinical trial with gamma-band transcranial alternating current stimulation for the treatment of schizophrenia refractory auditory hallucinations.
Transl Psychiatry
January 2025
Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China.
Gamma oscillations are essential for brain communication. The 40 Hz neural oscillation deficits in schizophrenia impair left frontotemporal connectivity and information communication, causing auditory hallucinations. Transcranial alternating current stimulation is thought to enhance connectivity between different brain regions by modulating brain oscillations.
View Article and Find Full Text PDFAlpha and high beta subthalamic intermittent activity correlates with freezing of gait severity in Parkinson's disease.
Clin Neurophysiol
January 2025
Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC (UFABC), São Bernardo do Campo, Brazil; Brazilian Institute of Neuroscience and Neurotechnology, Campinas, São Paulo, Brazil. Electronic address:
Introduction: Freezing of gait (FOG) is a disabling symptom that affects over half of Parkinson's disease patients (PD) and hinders the ability to walk. Subthalamic nucleus (STN) deep brain stimulation (DBS) effectiveness in ameliorating the FOG remains controversial, lacking a reliable electrophysiological biomarker from local field potentials (LFP).
Methods: The LFP-STN rhythms bandpower and dynamics were characterized at rest across groups in a cohort of 23 patients (14 with FOG, and 9 without, n-FOG).
Enhancement of oil dispersion and marine oil snow formation by surface-active biomasses from diatom.
Mar Environ Res
January 2025
College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian 116026, China. Electronic address:
Following the Deepwater Horizon oil spill event, the formation of marine oil snow (MOS) has attracted much attention from marine environmental scientists. This study investigates the crude oil dispersion as well as the MOS formation in the presence of Phaeodactylum tricornutum and Chaetoceros sp. through laboratory experiments.
View Article and Find Full Text PDFPendulum model to compare center of pressure data between different force plates.
Gait Posture
January 2025
Saarland University, Im Stadtwald B8.2, Saarbrücken D-66123, Germany; Texas A&M University, College Station, TX 77845, United States. Electronic address:
Background: Force plates are used to measure postural control. However, force plates differ with regard to the type of sensors and the position of the sensors. The purpose of the study was to introduce a method for testing the comparability of two force plates with different force transducers regarding their center of pressure (CoP) capturing.
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