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A novel method for measuring the output impedance of current sources in an EIT system is implemented and tested. The paper shows that the proposed method can be used at the time of operation while the load is attached to the EIT system. the results also show that performance of the system improves when the shunt impedance values from the proposed technique are used to set the adaptive sources as opposed to the shunt impedance values acquired through open circuit measurements.
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http://dx.doi.org/10.1109/EMBC46164.2021.9629839 | DOI Listing |
NPJ Aging
August 2025
Department of Agricultural, Forest and Food Sciences, University of Torino, Torino, Italy.
Lifespan extension has not prevented age-related decline. We propose that diet acts as a molecular modulator of aging, influencing inflammation, the microbiome, and systemic resilience. Biological age markers and AI-powered multi-omics reveal actionable dietary targets, including food-derived signals and Nutrition Dark Matter.
View Article and Find Full Text PDFIEEE Trans Biomed Eng
August 2025
Monitoring and evaluating tumor ablation is a critical step in the treatment process. However, the traditional medical imaging methods used in surgeries often have some drawbacks, such as poor real-time performance (CT/MRI), low imaging accuracy (ultrasound), and the presence of radiation risks (X-ray imaging). This paper proposes a Central Drive Frequency Difference Electrical Impedance Tomography (CD-FDEIT) approach.
View Article and Find Full Text PDFHigh-sensitivity measurements of the microwave electric field are important in applications of communication and metrology. The sensitivity of traditional Rydberg superheterodyne receivers in free space is effectively determined by the signal-to-noise ratio (SNR), which is often considered equivalent to sensitivity in practical sensing applications. In this work, we demonstrate a cavity-enhanced receiver, where an optical cavity significantly amplifies the interaction between the probe light and cesium atoms, which substantially improves the signal-to-noise ratio via enhancing the expansion coefficient .
View Article and Find Full Text PDFSci Rep
August 2025
Ksilink, Strasbourg, France.
Parkinson's disease (PD) involves multiple pathological processes in midbrain dopaminergic (mDA) neurons, including protein degradation defects, vesicular trafficking disruption, endolysosomal dysfunction, mitochondrial issues, and oxidative stress. Current PD models often lack complexity and focus on single phenotypes. We used patient-derived SNCA triplication (SNCA-4x) and isogenic control (SNCA-corr) mDA neurons, applying high-content imaging-based morphological profiling to identify and rescue multiple phenotypes.
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August 2025
Department of Mathematics, Colorado State University, Fort Collins, 80523, CO, USA.
Electrical impedance tomography (EIT) is a bedside imaging technique in which voltage data arising from current applied on electrodes is used to compute images of admittivity in real time. Due to the severe ill-posedness of the inverse problem, good spatial resolution poses a challenge in EIT. Conversely, the temporal resolution is high, facilitating dynamic bedside imaging.
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