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Fast EEG/MEG BEM-Based Forward Problem Solution for High-Resolution Head Models.
Neuroimage
January 2025
Dept. of Electrical and Computer Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
A fast BEM (boundary element method) based approach is developed to solve an EEG/MEG forward problem for a modern high-resolution head model. The method utilizes a charge-based BEM accelerated by the fast multipole method (BEM-FMM) with an adaptive mesh pre-refinement method (called b-refinement) close to the singular dipole source(s). No costly matrix-filling or direct solution steps typical for the standard BEM are required; the method generates on-skin voltages as well as MEG magnetic fields for high-resolution head models within 90 seconds after initial model assembly using a regular workstation.
View Article and Find Full Text PDFIConDiffNet: an unsupervised inverse-consistent diffeomorphic network for medical image registration.
Phys Med Biol
January 2025
Washington University in Saint Louis, 1 Brooking Dr., Saint Louis, Missouri, 63130, UNITED STATES.
This paper introduces a novel unsupervised inverse-consistent diffeomorphic registration network termed IConDiffNet, which incorporates an energy constraint that minimizes the total energy expended during the deformation process. The IConDiffNet architecture consists of two symmetric paths, each employing multiple recursive cascaded updating blocks (neural networks) to handle different virtual time steps parameterizing the path from the initial undeformed image to the final deformation. These blocks estimate velocities corresponding to specific time steps, generating a series of smooth time-dependent velocity vector fields.
View Article and Find Full Text PDFSelenium-assisted copper-catalyzed synthesis of phosphoramide from secondary phosphine oxide involving the construction of N-P bonds.
Org Biomol Chem
January 2025
College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
In this study, phosphoramide compounds were successfully synthesized a series of reaction transformations from P(O)H compounds. The process began with the formation of P-Se-Ar bonds, facilitated by the synergistic effect of phenylboronic acid, selenium, and appropriate ligands in the presence of copper. Following this, nucleophilic substitution reactions with amine compounds were conducted to create P-N bonds.
View Article and Find Full Text PDFAssessing ambulance staff attitudes toward mental health conditions: translation and psychometric evaluation of the medical condition regard scale among ambulance staff.
BMC Psychol
December 2024
Faculty of Health Sciences, Department of Nursing and Health Promotion, Oslo Metropolitan University, Oslo, Norway.
Introduction: Ambulance staff play a crucial role in responding to mental health crises. However, negative regard toward patients with mental health conditions can hinder care. The Medical Condition Regard Scale (MCRS) assesses regards or attitudes but has not previously been validated for educated ambulance staff and has never been translated into Norwegian.
View Article and Find Full Text PDFBreast Ironing from the Perspective of Transcultural Nursing by Madeleine Leininger: A Narrative Review.
Nurs Rep
November 2024
Department of Nursing, Faculty of Nursing, University of Valladolid, Av. Ramón y Cajal, 7, 47005 Valladolid, Spain.
(1) Background: This article addresses the harmful traditional practice of breast ironing, which primarily affects girls and adolescents in several countries, particularly in Cameroon. The practice involves applying heat and pressure to developing breasts to delay their growth, with the goal of protecting girls from sexual abuse, early pregnancy, and forced marriages. While culturally accepted, breast ironing has severe physical, psychological, and social consequences, including damage to mammary glands, pain, infections, and potential long-term health complications.
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