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A Magnetoelectric Distance Estimation System for Relative Human Motion Tracking.
Sensors (Basel)
January 2025
Department of Electrical and Information Engineering, Kiel University, 24143 Kiel, Germany.
Clinical motion analysis plays an important role in the diagnosis and treatment of mobility-limiting diseases. Within this assessment, relative (point-to-point) tracking of extremities could benefit from increased accuracy. Given the limitations of current wearable sensor technology, supplementary spatial data such as distance estimates could provide added value.
View Article and Find Full Text PDFQuantum Monte Carlo Calculations of Magnetic Form Factors in Light Nuclei.
Phys Rev Lett
November 2024
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
We present quantum Monte Carlo calculations of magnetic form factors in A=6-10 nuclei, based on Norfolk two- and three-nucleon interactions, and associated one- and two-body electromagnetic currents. Agreement with the available experimental data for ^{6}Li, ^{7}Li, ^{9}Be, and ^{10}B up to values of momentum transfer q∼3 fm^{-1} is achieved when two-nucleon currents are accounted for. We present a set of predictions for the magnetic form factors of ^{7}Be, ^{8}Li, ^{9}Li, and ^{9}C.
View Article and Find Full Text PDFOral Health and "Modern" Digestive Diseases: Pathophysiologic and Etiologic Factors.
Biomedicines
August 2024
Department of Gastroenterology, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Universitatii Street No. 16, 700115 Iasi, Romania.
Article Synopsis
- The article explores the complex interactions between the human body's systems, focusing on factors like chronic inflammation, microbial imbalance, and metabolic disorders that affect health.
- It emphasizes the need for interdisciplinary collaboration among healthcare professionals, particularly gastroenterologists and dentists, to improve patient outcomes through comprehensive care plans.
- The research highlights the significant connections between oral health and digestive diseases, calling for increased awareness of how disorders in one area can impact the other for better diagnosis and treatment.
Effect of Spectral Filtering and Segmental X-ray Tube Current Switch-Off on Interventionalist's Scatter Exposure during CT Fluoroscopy.
Bioengineering (Basel)
August 2024
Department of Radiology and Nuclear Medicine, University Hospital Magdeburg and Medical Faculty of Otto-von-Guericke University, 39120 Magdeburg, Germany.
Dose optimization in computed tomography (CT) is crucial, especially in CT fluoroscopy (fluoro-CT) used for real-time navigation, affecting both patient and operator safety. This study evaluated the impact of spectral X-ray filtering using a tin filter (Sn filter), and a method called partial-angle computed tomography (PACT), which involves segmentally switching off the X-ray tube current at the ambient dose rate H˙*(10) at the interventional radiologist's (IR) position. Measurements were taken at two body regions (upper body: head/neck; lower body: lower legs/feet) using a 120 kV X-ray tube voltage, 3 × 5.
View Article and Find Full Text PDFViscous Current-Induced Forces.
Phys Rev Lett
July 2024
Fritz Haber Research Center of Molecular Dynamics, The Hebrew University of Jerusalem, Institute of Chemistry, Israel.
We study the motion (translational, vibrational, and rotational) of a diatomic impurity immersed in an electron liquid and exposed to electronic current. An approach based on the linear response time-dependent density functional theory combined with the Ehrenfest dynamics leads to a system of linear algebraic equations, which account for the competing and counteracting effects of the current-induced force (electron wind) and the electronic friction. We find and emphasize the coupling between the center of mass motion and that of the nuclei relative to each other, the feature due to the mediation of the two-body interaction by the environment.
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