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Detection of respiratory frequency rhythm in human alpha phase shifts: topographic distributions in wake and drowsy states.
Front Physiol
January 2025
Laboratory for Radiation Chemistry and Physics-030, Institute for Nuclear Sciences Vinča-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia.
Introduction: The relationship between brain activity and respiration is recently attracting increasing attention, despite being studied for a long time. Respiratory modulation was evidenced in both single-cell activity and field potentials. Among EEG and intracranial measurements, the effect of respiration was prevailingly studied on amplitude/power in all frequency bands.
View Article and Find Full Text PDFParallelized Field-Programmable Gate Array Data Processing for High-Throughput Pulsed-Radar Systems.
Sensors (Basel)
January 2025
Computer-Aided Design and Test (CADT) Research Group, McMaster University, Hamilton, ON L8S 4L8, Canada.
A parallelized field-programmable gate array (FPGA) architecture is proposed to realize an ultra-fast, compact, and low-cost dual-channel ultra-wideband (UWB) pulsed-radar system. This approach resolves the main shortcoming of current FPGA-based radars, namely their low processing throughput, which leads to a significant loss of data provided by the radar receiver. The architecture is integrated with an in-house UWB pulsed radar operating at a sampling rate of 20 gigasamples per second (GSa/s).
View Article and Find Full Text PDFA fast parameter estimation method for high-frequency oscillation based on empirical wavelet transform and moving least square.
Sci Rep
January 2025
School of Electrical Engineering, Southeast University, Nanjing, 210096, China.
In renewable power systems, the interaction between generators, power electronic devices, and the grid has led to frequent high-frequency oscillation (HFO) events. These events can result in significant generation losses and pose serious threats to system stability. Therefore, the rapid and accurate HFO parameter estimation is crucial for early warning and effective mitigation of HFO.
View Article and Find Full Text PDFExploring the Effects of Tomatidine ((3β, 5α, 22β, and 25β)-Spirosolan-3-ol) on Voltage-gated Na+ currents: Insights Into Its Ionic Mechanisms of Action on Current Magnitude, Gating, and Frequency Dependence.
J Physiol Investig
November 2024
Department of Physiology, National Cheng Kung University Medical College, Tainan, Taiwan.
Tomatidine, a major tomato glycoalkaloid, is effective for the prevention of skeletal muscle wasting and enhancing mitophagy. However, its effects on transmembrane ionic currents are not well explored. In this study, we explored the interactions between tomatidine and Na+ current.
View Article and Find Full Text PDFSpatiotemporal dynamics of abstract concept processing: An MEG study.
Brain Lang
January 2025
Department of Psychology, University of Jyväskylä, Jyväskylä 40014, Finland; Centre for Interdisciplinary Brain Research, University of Jyväskylä, Jyväskylä 40014, Finland. Electronic address:
Our current understanding of how linguistic concepts are represented and retrieved in the brain is largely based on studies using concrete language, and only few studies have focused on the neural correlates of abstract concepts. The role of the motor system, besides the classical language network, has been intensively discussed in action-related concrete concepts. To advance our understanding of spatiotemporal dynamics underlying abstract concept processing, our study investigated to what extent language and motor regions are engaged in the processing of abstract concepts vs.
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