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Near-Field Clutter Mitigation in Speckle Tracking Echocardiography.
Ultrasound Med Biol
January 2025
Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong; Biomedical Engineering Programme, The University of Hong Kong, Hong Kong. Electronic address:
Objective: Near-field (NF) clutter filters are critical for unveiling true myocardial structure and dynamics. Randomized singular value decomposition (rSVD) stands out for its proven computational efficiency and robustness. This study investigates the effect of rSVD-based NF clutter filtering on myocardial motion estimation.
View Article and Find Full Text PDFA low-cost PPG sensor-based empirical study on healthy aging based on changes in PPG morphology.
Physiol Meas
December 2024
University of Glasgow James Watt School of Engineering, James Watt School of Engineering, Glasgow, Glasgow, G12 8QQ, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
Objective: We study the changes in morphology of the photoplethysmography (PPG) signals-acquired from a select group of South Asian origin-through a low-cost PPG sensor, and correlate it with healthy aging which allows us to reliably estimate the vascular age and chronological age of a healthy person as well as the age group he/she belongs to.
Methods: Raw infrared PPG data is collected from the finger-tip of 173 appar- ently healthy subjects, aged 3-61 years, via a non-invasive low- cost MAX30102 PPG sensor. In addition, the following metadata is recorded for each subject: age, gender, height, weight, family history of cardiac disease, smoking history, vitals (heart rate and SpO2).
Placental and immune cell DNA methylation reference panel for bulk tissue cell composition estimation in epidemiological studies.
Epigenetics
December 2024
Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA.
To distinguish DNA methylation (DNAm) from cell proportion changes in whole placental villous tissue research, we developed a robust cell type-specific DNAm reference to estimate cell composition. We collated new and existing cell type DNAm profiles quantified via Illumina EPIC or 450k microarrays. To estimate cell composition, we deconvoluted whole placental samples ( = 36) with robust partial correlation based on the top 30 hyper- and hypomethylated sites identified per cell type.
View Article and Find Full Text PDFEstimating global phase synchronization by quantifying multivariate mutual information and detecting network structure.
Neural Netw
March 2025
Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. Electronic address:
In neuroscience, phase synchronization (PS) is a crucial mechanism that facilitates information processing and transmission between different brain regions. Specifically, global phase synchronization (GPS) characterizes the degree of PS among multivariate neural signals. In recent years, several GPS methods have been proposed.
View Article and Find Full Text PDFMaximizing similarity: Using correlation coefficients to calibrate kinetic parameters in population balance models.
Heliyon
November 2024
Department of Chemical and Environmental Process Engineering, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary.
Crystallization plays a crucial role as a separation and purification technique, particularly in the chemical and pharmaceutical industries. By adjusting process parameters, the productivity, product quality, and efficiency of downstream processes can be improved. In complex processes, model-based design becomes invaluable.
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