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Showing 1-20 of 10,000 results
  1. Effects of free trade on export efficiency of COMESA member-states

    Regional integration in Africa is deepening, and the existing regional grou**s are making frantic efforts to remove barriers to trade. One way in...

    Stein Masunda, Gabriel Mhonyera in Journal of Ship** and Trade
    Article Open access 23 February 2024
  2. High-energy photoemission final states beyond the free-electron approximation

    Three-dimensional (3D) electronic band structure is fundamental for understanding a vast diversity of physical phenomena in solid-state systems,...

    V. N. Strocov, L. L. Lev, ... J. Minár in Nature Communications
    Article Open access 10 August 2023
  3. Squeezed coherent states for a free particle with time-varying mass

    We obtain the squeezed coherent states (SCS) for a free particle with exponentially time-varying mass. We write these states in terms of the squeeze...

    A. S. Pereira, A. S. Lemos, F. A. Brito in The European Physical Journal Plus
    Article 28 April 2023
  4. Spatially reconfigurable antiferromagnetic states in topologically rich free-standing nanomembranes

    Antiferromagnets hosting real-space topological textures are promising platforms to model fundamental ultrafast phenomena and explore spintronics....

    Hariom Jani, Jack Harrison, ... Paolo G. Radaelli in Nature Materials
    Article Open access 19 February 2024
  5. Foldy–Wouthuysen Transformation and Structured States of a Graphene Electron in External Fields and Free (2 + 1)-Space

    Abstract

    The relativistic Foldy–Wouthuysen transformation is used for an advanced description of a free and interacting planar graphene electron. The...

    Article 06 October 2023
  6. Transmission of SARS-CoV-2 in free-ranging white-tailed deer in the United States

    SARS-CoV-2 is a zoonotic virus with documented bi-directional transmission between people and animals. Transmission of SARS-CoV-2 from humans to...

    Ai**g Feng, Sarah Bevins, ... **u-Feng Wan in Nature Communications
    Article Open access 10 July 2023
  7. Non-fluorescent transient states of tyrosine as a basis for label-free protein conformation and interaction studies

    The amino acids tryptophan, tyrosine, and phenylalanine have been extensively used for different label-free protein studies, based on the intensity,...

    Niusha Bagheri, Hongjian Chen, ... Jerker Widengren in Scientific Reports
    Article Open access 18 March 2024
  8. Scale-free dynamics in the core-periphery topography and task alignment decline from conscious to unconscious states

    Scale-free physiological processes are ubiquitous in the human organism. Resting-state functional MRI studies observed the loss of scale-free...

    Philipp Klar, Yasir Çatal, ... Georg Northoff in Communications Biology
    Article Open access 09 May 2023
  9. Dimension-Free Entanglement Detection in Multipartite Werner States

    Werner states are multipartite quantum states that are invariant under the diagonal conjugate action of the unitary group. This paper gives a...

    Felix Huber, Igor Klep, ... Jurij Volčič in Communications in Mathematical Physics
    Article 27 August 2022
  10. Resolving Fock states near the Kerr-free point of a superconducting resonator

    We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting Nonlinear Asymmetric Inductive eLement). Such a device...

    Yong Lu, Marina Kudra, ... Per Delsing in npj Quantum Information
    Article Open access 10 November 2023
  11. Law, human capital, and the emergence of free city-states in medieval Italy

    This paper considers how the foundation of the first universities in Italy affected the emergence of free city-states (the communes) in the period...

    Marianna Belloc, Francesco Drago, Roberto Galbiati in European Journal of Law and Economics
    Article Open access 06 August 2023
  12. Symmetry resolved entanglement of excited states in quantum field theory. Part I. Free theories, twist fields and qubits

    The excess entanglement resulting from exciting a finite number of quasiparticles above the ground state of a free integrable quantum field theory...

    Luca Capizzi, Olalla A. Castro-Alvaredo, ... Lucía Santamaría-Sanz in Journal of High Energy Physics
    Article Open access 21 December 2022
  13. Passive bias-free non-reciprocal metasurfaces based on thermally nonlinear quasi-bound states in the continuum

    Non-reciprocal devices—in which light is transmitted with different efficiencies along opposite directions—are key technologies for modern photonic...

    Michele Cotrufo, Andrea Cordaro, ... Andrea Alù in Nature Photonics
    Article 30 November 2023
  14. From Neoliberal Punitive States to Care States

    As has already been made clear in Chaps. 1 to 3 , under the...
    Koen Byttebier in Ethics of Socioeconomics
    Chapter Open access 2024
  15. A Label-Free Measurement Method for Plane Stress States in Optical Isotropic Films with Spectroscopic Ellipsometry

    Background

    Stress measurement for thin films is crucial in a variety of fields such as in semiconductor manufacturing, the optoelectronics industry,...

    X. Sun, S. Wang, ... Z. Wang in Experimental Mechanics
    Article 24 January 2024
  16. A labeled dataset for building HVAC systems operating in faulted and fault-free states

    Open data is fueling innovation across many fields. In the domain of building science, datasets that can be used to inform the development of...

    Jessica Granderson, Guan**g Lin, ... Jiazhen Ling in Scientific Data
    Article Open access 01 June 2023
  17. Squeezed and Correlated States of Parametric Oscillator and Free Particle in the Probability Representation of Quantum Mechanics

    The states of quantum oscillator with time-dependent frequency are described by the tomographic probability distributions. The integrals of motion,...

    Vladimir N. Chernega, Olga V. Man’ko in Journal of Russian Laser Research
    Article 01 May 2022
  18. Center-of-Mass Tomography of Coherent States of Two Free Particles

    We study tomographic probability distributions of quantum states of two free particles. We construct the conditional tomographic probability...

    Vladimir N. Chernega in Journal of Russian Laser Research
    Article 25 November 2021
  19. Trajectory-free dynamic locomotion using key trend states for biped robots with point feet

    This study proposed a human-inspired-based KTS design method and control framework for UBRs. A trajectory-free motion planning method was directly...

    Lianqiang Han, Xuechao Chen, ... Qiang Huang in Science China Information Sciences
    Article 07 December 2022
  20. Free Will

    The question of free will is closely linked to the discussion about determinism and randomness and remains controversial and complex in philosophy...
    Chapter 2024
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