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| http://dx.doi.org/10.12788/jhm.3579 | DOI Listing |
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Spin and valley dependent transport and tunneling magnetoresistance in irradiated ferromagnetic WSedouble barrier junctions.
Sci Rep
January 2025
College of Science, Xuchang University, Xuchang, 461000, China.
Spin and valley polarizations (P and P) and tunneling magnetoresistance (TMR) are demonstrated in the ferromagnetic/barrier/normal/barrier/ferromagnetic WSe junction, with the gate voltage and off-resonant circularly polarized light (CPL) applied to the two barrier regions. The minimum incident energy of non-zero spin- and valley-resolved conductance has been derived, which is consistent with numerical calculations and depends on the electric potential U, CPL intensity ΔΩ, exchange field h, and magnetization configuration: parallel (P) or antiparallel (AP). For the P (AP) configuration, the energy region with P = -1 or P = 1 is wider (narrower) and increases with ΔΩ.
View Article and Find Full Text PDFFeshbach hypothesis of high-Tc superconductivity in cuprates.
Nat Commun
January 2025
Department of Physics and Arnold Sommerfeld Center for Theoretical Physics (ASC), Ludwig-Maximilians-Universität München, München, Germany.
Article Synopsis
- The study explores strong pairing mechanisms in many-body physics, particularly through a Feshbach perspective, focusing on interactions in Fermi-Hubbard models related to doped Mott insulators.
- It theorizes the presence of a low-energy excited state of two holes that facilitates near-resonant interactions, which aligns with observed behaviors in cuprate materials.
- The authors propose experimental methods like cARPES and pair-tunneling measurements to test their theories, suggesting a link between emergent Feshbach resonances and superconductivity in antiferromagnetic Mott insulators.
Mental health and sleep routines: Uttarkashi, India tunnel collapse workers' experience.
Sleep Med
December 2024
Department of Psychiatry & Division of Sleep Medicine, AIIMS Rishikesh, India.
Among the mental health outcomes and disaster types (determined by damage to life, property, long-term consequences, displacement, and unpredictability), floods are associated with anxiety and sleep problems, mudslides with anxiety and mood disturbance, volcanic eruptions with acute stress reactions, and earthquakes with anxiety, depression, and physical complaints. Disasters such as tunnel collapse are unique as it involves the healthy, without loss of personal property or displacement; hence, they can have very different health-related outcomes. In this study, we explore mental health and sleep-related issues in workers rescued from an under-construction collapsed tunnel trapped for 17 days.
View Article and Find Full Text PDFComparing the Pressure on the Carpal Tunnel When Using an Ergonomic Pointer Driver and an Optical Alternative.
J Funct Morphol Kinesiol
December 2024
Centro Universitario de la Ciénega, Universidad de Guadalajara, Avenida Universidad 1115, Ocotlan 47810, Jalisco, Mexico.
: The objective of this paper is to introduce a method to measure the force or pressure over the carpal tunnel indirectly, using a new device to drive the pointer of a computer system. The measurements were compared with those obtained using an ergonomic mouse. Simultaneously, measurements of muscular stress on the digitorum extensor muscle were performed to correlate the applied force against muscle activity.
View Article and Find Full Text PDFEye-Inspired Single-Pixel Imaging with Lateral Inhibition and Variable Resolution for Special Unmanned Vehicle Applications in Tunnel Inspection.
Biomimetics (Basel)
December 2024
School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China.
This study presents a cutting-edge imaging technique for special unmanned vehicles (UAVs) designed to enhance tunnel inspection capabilities. This technique integrates ghost imaging inspired by the human visual system with lateral inhibition and variable resolution to improve environmental perception in challenging conditions, such as poor lighting and dust. By emulating the high-resolution foveal vision of the human eye, this method significantly enhances the efficiency and quality of image reconstruction for fine targets within the region of interest (ROI).
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