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  1. Can Magnetic Forces Do Work?Jacob Barandes - manuscript
    Standard lore holds that magnetic forces are incapable of doing mechanical work. More precisely, the claim is that whenever it appears that a magnetic force is doing work, the work is actually being done by another force, with the magnetic force serving only as an indirect mediator. However, the most familiar instances of magnetic forces acting in everyday life, such as when bar magnets lift other bar magnets, appear to present manifest evidence of magnetic forces doing work. These sorts of (...)
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  2. The construction of Electromagnetism.Mario Natiello & H. G. Solari - manuscript
    Abstract We examine the construction of electromagnetism in its current form, and in an alternative form, from a point of view that combines a minimal realism with strict rational demands. We begin by discussing the requests of reason when constructing a theory and next, we follow the historical development as presented in the record of original publications, the underlying epistemology (often explained by the authors) and the mathematical constructions. The historical construction develops along socio-political disputes (mainly, the reunification of Germany (...)
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  3. Classical Electrodynamics in agreement with Newton’s third law of motion.Koenraad Johan van Vlaenderen - manuscript
    The force law of Maxwell’s classical electrodynamics does not agree with Newton’s third law of motion (N3LM), in case of open circuit magnetostatics. Initially, a generalized magnetostatics theory is presented that includes two additional physical fields B_Φ and B_l, defined by scalar functions. The scalar magnetic field B_l mediates a longitudinal Ampère force that balances the transverse Ampère force (aka the magnetic field force), such that the sum of the two forces agrees with N3LM for all stationary current distributions. Secondary (...)
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  4. Is the world made of loops?Alexander Afriat - 2013
    In discussions of the Aharonov-Bohm effect, Healey and Lyre have attributed reality to loops $\sigma_0$ (or hoops $[\sigma_0]$), since the electromagnetic potential $A$ is currently unmeasurable and can therefore be transformed. I argue that $[A]=[A+d\lambda]_{\lambda}$ and the hoop $[\sigma_0]$ are related by a meaningful duality, so that however one feels about $[A]$ (or any potential $A\in[A]$), it is no worse than $[\sigma_0]$ (or any loop $\sigma_0\in[\sigma_0]$): no ontological firmness is gained by retreating to the loops, which are just as flimsy (...)
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  5. Generalizing "charge without charge" to obtain classical analogs of short-range interactions.Mark Sharlow - 2007
    Several decades ago, Wheeler and Misner presented a model of electric charge based on the topological trapping of electric field lines in wormholes. In this paper, which does not argue for or against the "charge without charge" concept, I describe some generalizations of this model which might serve as topological analogs of color charges and electroweak charges.
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  6. A decision procedure for linear “big o” equations.Jeremy Avigad - manuscript
    Let F be the set of functions from an infinite set, S, to an ordered ring, R.
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  7. Cosmic mass and the electromagnetic & strong interactions.S. Lakshminarayana - unknown - Ratio 2 (1039).
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  8. The spin structure of the nucleon: status and plans for JLab at 11 GeV.Oscar A. Rondon - unknown - Hermes 16 (7):9-7.
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  9. Modeling the Real Structure of an Electron.David L. Bergman - forthcoming - Foundations of Science.
  10. Electron in the Ground Energy State—Part.David L. Bergman & Dennis P. Allen Jr - forthcoming - Foundations of Science.
  11. The Case Against Accelerated Depreciation.Harold M. Edelstein & Peter L. Bernstein - forthcoming - Social Research: An International Quarterly.
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  12. Complexity of local solution of multivariate integral equations. to appear in J.K. Frank - forthcoming - Complexity.
  13. How to Choose a Gauge? The Case of Hamiltonian Electromagnetism.Henrique Gomes & Jeremy Butterfield - forthcoming - Erkenntnis:1-35.
    We develop some ideas about gauge symmetry in the context of Maxwell’s theory of electromagnetism in the Hamiltonian formalism. One great benefit of this formalism is that it pairs momentum and configurational degrees of freedom, so that a decomposition of one side into subsets can be translated into a decomposition of the other. In the case of electromagnetism, this enables us to pair degrees of freedom of the electric field with degrees of freedom of the vector potential. Another benefit is (...)
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  14. Comparativist Theories or Conspiracy Theories: the No Miracles Argument Against Comparativism.Caspar Jacobs - forthcoming - Journal of Philosophy.
    Although physical theories routinely posit absolute quantities, such as absolute position or intrinsic mass, it seems that only comparative quantities such as distance and mass ratio are observable. But even if there are in fact only distances and mass ratios, the success of absolutist theories means that the world looks just as if there are absolute positions and intrinsic masses. If comparativism is nevertheless true, there is a sense in which it is a cosmic conspiracy that the world looks just (...)
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  15. Unruh Effect in a Uniformly Accelerated Charge: From quantum fluctuations to classical radiation.Philip R. Johnson & B. L. Hu - forthcoming - Foundations of Physics.
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  16. The Endogenous Electromagnetic Oscillations in the Consciousness Field Pattern Formation.G. Lednyiczky & O. Zhalko-Tytarenko - forthcoming - World Futures.
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  17. Progress in Estimation of Solar Radiation: Correlation between Solar Radiation and Temperature.Kenichi Matsui - forthcoming - Critical Review: A Journal of Politics and Society.
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  18. Abandoning Galileo's Ship: The quest for non-relational empirical significance.Sebastián Murgueitio Ramírez & Nicholas Teh - forthcoming - British Journal for the Philosophy of Science.
    The recent debate about whether gauge symmetries can be empirically significant has focused on the possibility of 'Galileo's ship' types of scenarios, where the symmetries effect relational differences between a subsystem and the environment. However, it has gone largely unremarked that apart from such Galileo's ship scenarios, Greaves and Wallace (2014) proposed that gauge transformations can also be empirically significant in a 'non-relational' manner that is analogous to a Faraday-cage scenario, where the subsystem symmetry is related to a change in (...)
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  19. Orientation of the electric field gradient and ellipticity of the magnetic cycloid in multiferroic BiFeO3.A. Pierzga, A. Błachowski, K. Komędera, K. Ruebenbauer, A. Kalvane & R. Bujakiewicz-Korońska - forthcoming - Philosophical Magazine:1-7.
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  20. On the existance of undistorted progressive waves of arbitrary speeds 0≤ v<∞ in Nature, RP 12/96 (March), IME-UNICAMP (Campinas, Brazil). [REVIEW]W. Rodrigues & Y. Lu - forthcoming - Foundations of Physics.
  21. Science, dualities and the phenomenological map.H. G. Solari & Mario Natiello - forthcoming - Foundations of Science:1-28.
    We present an epistemological schema of natural sciences inspired by Peirce's pragmaticist view, stressing the role of the \emph{phenomenological map}, that connects reality and our ideas about it. The schema has a recognisable mathematical/logical structure which allows to explore some of its consequences. We show that seemingly independent principles as the requirement of reproducibility of experiments and the Principle of Sufficient Reason are both implied by the schema, as well as Popper's concept of falsifiability. We show that the schema has (...)
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  22. Infrared Systems of" Looking.V. V. Tarasov & J. G. Jakvshenko - forthcoming - Logos. Anales Del Seminario de Metafísica [Universidad Complutense de Madrid, España].
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  23. Sur la resolution algébrique Des équations.H. Tome - forthcoming - Eleutheria.
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  24. The Magnetic and Velocity Fields of Solar Active Regions eds.S. Tsuneta - forthcoming - Zirin, H., Ai, G., and Wang H., Astronomical Society of the Pacific, San Francisco, P239.
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  25. Electron–phonon interaction and superconductivity in the.H. M. Tütüncü, Karaca Ertuǧrul & G. P. Srivastava - forthcoming - Philosophical Magazine:1-16.
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  26. Magnetic fields.Meredith Wadman - forthcoming - Mind.
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  27. JUSTIFICACIÓN ASTROFÍSICA DE LOS SÍMBOLOS ASTROLÓGICOS.David E. Bustamante Segovia - 2024 - Dissertation,
    ● Este ensayo corre el velo de una estrecha relación entre los símbolos astrológicos y el mundo fenoménico y explica cómo dicotomías características de los siglos XVIII y XX han dificultado esta y otras comprensiones de nuestra realidad. ● Las observaciones se apoyan en los hallazgos producidos durante los últimos cuarenta años con relación a los planetas, sus características astronómicas y propiedades astrofísicas, hallazgos que corroboran casi integralmente los esbozos que sobre los planetas hiciera, entre otros autores, VETIO VALENTE (s. (...)
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  28. Radiation reaction on an accelerating point charge.Jerrold Franklin - 2023 - International Journal of Modern Physics A 38 (01):2350005, 6 pages.
    A point charge accelerating under the influence of an external force emits electromagnetic radiation that reduces the increase in its mechanical energy. This causes a reduction in the particle's acceleration. We derive the decrease in acceleration due to radiation reaction for a particle accelerating parallel to its velocity, and show that it has a negligible effect.
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  29. Absorbing the Arrow of Electromagnetic Radiation.Mario Hubert & Charles T. Sebens - 2023 - Studies in History and Philosophy of Science Part A 99 (C):10-27.
    We argue that the asymmetry between diverging and converging electromagnetic waves is just one of many asymmetries in observed phenomena that can be explained by a past hypothesis and statistical postulate (together assigning probabilities to different states of matter and field in the early universe). The arrow of electromagnetic radiation is thus absorbed into a broader account of temporal asymmetries in nature. We give an accessible introduction to the problem of explaining the arrow of radiation and compare our preferred strategy (...)
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  30. The metaphysics of fibre bundles.Caspar Jacobs - 2023 - Studies in History and Philosophy of Science Part A 97 (C):34-43.
    Recently, Dewar (2019) has suggested that one can apply the strategy of 'sophistication' - as exemplified by sophisticated substantivalism as a response to the diffeomorphism invariance of General Relativity - to gauge theories such as electrodynamics. This requires a shift to the formalism of fibre bundles. In this paper, I develop and defend this suggestion. Where my approach differs from previous discussions is that I focus on the metaphysical picture underlying the fibre bundle formalism. In particular, I aim to affirm (...)
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  31. What If Light Doesn't Exist?Mario Hubert - 2022 - The British Journal for the Philosophy of Science.
    This is the BJPS Short Read version of the article When Fields Are Not Degrees of Freedom. In our article, Vera Hartenstein and I show that the world of classical electromagnetism might differ radically from the one we see in physics textbooks and experience day-to-day. First, light may not exist; second, the laws of electromagnetism are either incomplete or completely different; and, third, the mathematics needed to make exact calculations with these novel laws is in early development and not part (...)
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  32. On Magnetic Forces and Work.Jacob A. Barandes - 2021 - Foundations of Physics 51 (4):1-17.
    We address a long-standing debate over whether classical magnetic forces can do work, ultimately answering the question in the affirmative. In detail, we couple a classical particle with intrinsic spin and elementary dipole moments to the electromagnetic field, derive the appropriate generalization of the Lorentz force law, show that the particle's dipole moments must be collinear with its spin axis, and argue that the magnetic field does mechanical work on the particle's elementary magnetic dipole moment. As consistency checks, we calculate (...)
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  33. An Algebraic Approach to Physical Fields.Lu Chen & Tobias Fritz - 2021 - Studies in History and Philosophy of Science Part A 89 (C):188-201.
    According to the algebraic approach to spacetime, a thoroughgoing dynamicism, physical fields exist without an underlying manifold. This view is usually implemented by postulating an algebraic structure (e.g., commutative ring) of scalar-valued functions, which can be interpreted as representing a scalar field, and deriving other structures from it. In this work, we point out that this leads to the unjustified primacy of an undetermined scalar field. Instead, we propose to consider algebraic structures in which all (and only) physical fields are (...)
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  34. When Fields Are Not Degrees of Freedom.Vera Hartenstein & Mario Hubert - 2021 - British Journal for the Philosophy of Science 72 (1):245-275.
    We show that in the Maxwell–Lorentz theory of classical electrodynamics most initial values for fields and particles lead to an ill-defined dynamics, as they exhibit singularities or discontinuities along light-cones. This phenomenon suggests that the Maxwell equations and the Lorentz force law ought rather to be read as a system of delay differential equations, that is, differential equations that relate a function and its derivatives at different times. This mathematical reformulation, however, leads to physical and philosophical consequences for the ontological (...)
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  35. Building Blocks for the Development of a Self-Consistent Electromagnetic Field Theory of Consciousness.Joachim Keppler - 2021 - Frontiers in Human Neuroscience 15:723415.
    The goal of this work is to compile the basic components for the construction of an electromagnetic field theory of consciousness that meets the standards of a fundamental theory. An essential cornerstone of the conceptual framework is the vacuum state of quantum electrodynamics which, contrary to the classical notion of the vacuum, can be viewed as a vibrant ocean of energy, termed zero-point field (ZPF). Being the fundamental substrate mediating the electromagnetic force, the ubiquitous ZPF constitutes the ultimate bedrock of (...)
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  36. Gauge-Underdetermination and Shades of Locality in the Aharonov–Bohm Effect.Ruward A. Mulder - 2021 - Foundations of Physics 51 (2):1-26.
    I address the view that the classical electromagnetic potentials are shown by the Aharonov–Bohm effect to be physically real. I give a historico-philosophical presentation of this view and assess its prospects, more precisely than has so far been done in the literature. Taking the potential as physically real runs prima facie into ‘gauge-underdetermination’: different gauge choices represent different physical states of affairs and hence different theories. This fact is usually not acknowledged in the literature, neither by proponents nor by opponents (...)
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  37. The Double Nature of Maxwell's Physical Analogies.Francesco Nappo - 2021 - Studies in History and Philosophy of Science Part A 89 (C):212-225.
    Building upon work by Mary Hesse (1974), this paper aims to show that a single method of investigation lies behind Maxwell’s use of physical analogies in his major scientific works before the Treatise on Electricity and Magnetism. Key to understanding the operation of this method is to recognize that Maxwell’s physical analogies are intended to possess an ‘inductive’ function in addition to an ‘illustrative’ one. That is to say, they not only serve to clarify the equations proposed for an unfamiliar (...)
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  38. Materialism and Dialectics in a Post-Classical World: Impact of Electromagnetism.Anil Rajimwale - 2021 - Delhi: Routledge.
    In the present book the author shows how electromagnetism connects classical with post-classical thought, creating new structures, and impacting materialism and dialectics. Please note: T&F does not sell or distribute the Hardback in South Asia.
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  39. How to make reflectance a surface property.Nicholas Danne - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 70:19-27.
    Reflectance physicalists define reflectance as the intrinsic disposition of a surface to reflect finite-duration light pulses at a given efficiency per wavelength. I criticize the received view of dispositional reflectance (David R. Hilbert’s) for failing to account for what I call “harmonic dispersion,” the inverse relationship of a light pulse's duration to its bandwidth. I argue that harmonic dispersion renders reflectance defined in terms of light pulses an extrinsic disposition. Reflectance defined as the per-wavelength efficiency to reflect the superimposed, infinite-duration, (...)
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  40. The non-ideal theory of the Aharonov–Bohm effect.John Dougherty - 2020 - Synthese (12):12195-12221.
    Elay Shech and John Earman have recently argued that the common topological interpretation of the Aharonov–Bohm (AB) effect is unsatisfactory because it fails to justify idealizations that it presupposes. In particular, they argue that an adequate account of the AB effect must address the role of boundary conditions in certain ideal cases of the effect. In this paper I defend the topological interpretation against their criticisms. I consider three types of idealization that might arise in treatments of the effect. First, (...)
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  41. The philosophical underpinning of the absorber theory of radiation.Marco Forgione - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 72:91-106.
    The paper considers the absorber theory of radiation by (Wheeler and Feynman 1945) and (Wheeler and Feynman 1949) and advances the idea that the theory is grounded on the philosophical intuition of overall processes. Such intuition consists of having to consider advanced and retarded radiation as well as the interaction between absorbers and emitter. I discuss the discrepancy between microdynamic time-symmetry and the asymmetry of the experimental evidences. In doing so, I consider (Price, 1991)'s reformulation of the theory and argue (...)
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  42. Reflections on the Practice of Physics: James Clerk Maxwell’s Methodological Odyssey in Electromagnetism.Giora Hon & Bernard R. Goldstein - 2020 - Routledge.
    This monograph examines James Clerk Maxwell's contributions to electromagnetism to gain insight into the practice of science by focusing on scientific methodology as applied by scientists. First and foremost, this study is concerned with practices that are reflected in scientific texts and the ways scientists frame their research. The book is therefore about means and not ends.
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  43. Christoph Sander, 2020. Magnes. Der Magnetstein und der Magnetismus in den Wissenschaften der Frühen Neuzeit, Leiden-Boston, Brill, 1140 pp. [REVIEW]Andrea Strazzoni - 2020 - Physis 55 (1-2):519-522.
  44. On the Persistence of the Electromagnetic Field.Márton Gömöri & László E. Szabó - 2019 - Journal for General Philosophy of Science / Zeitschrift für Allgemeine Wissenschaftstheorie 50 (1):43-61.
    According to the standard realistic interpretation of classical electrodynamics, the electromagnetic field is conceived as a real physical entity existing in space and time. The problem we address in this paper is how to understand this spatiotemporal existence, that is, how to describe the persistence of a field-like physical entity like electromagnetic field. First, we provide a formal description of the notion of persistence: we derive an “equation of persistence” constituting a necessary condition that the spatiotemporal distributions of the fundamental (...)
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  45. Growing Evidence that Perceptual Qualia are Neuroelectrical Not Computational.Mostyn W. Jones - 2019 - Journal of Consciousness Studies 26 (5-6):89-116.
    Computational neuroscience attributes coloured areas and other perceptual qualia to calculations that are realizable in multiple cellular forms. This faces serious issues in explaining how the various qualia arise and how they bind to form overall perceptions. Qualia may instead be neuroelectrical. Growing evidence indicates that perceptions correlate with neuroelectrical activity spotted by locally activated EEGs, the different qualia correlate with the different electrochemistries of unique detector cells, a unified neural-electromagnetic field binds this activity to form overall perceptions, and this (...)
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  46. Is an Electron a Charge Cloud? A Reexamination of Schrödinger’s Charge Density Hypothesis.Shan Gao - 2018 - Foundations of Science 23 (1):145-157.
    This article re-examines Schrödinger’s charge density hypothesis, according to which the charge of an electron is distributed in the whole space, and the charge density in each position is proportional to the modulus squared of the wave function of the electron there. It is shown that the charge distribution of a quantum system can be measured by protective measurements as expectation values of certain observables, and the results as predicted by quantum mechanics confirm Schrödinger’s original hypothesis. Moreover, the physical origin (...)
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  47. Lumina - Optica fenomenologică.Nicolae Sfetcu - 2018 - Drobeta Turnu Severin, Romania: MultiMedia Publishing.
    Previzualizare carte -/- O introducere în fenomenologia opticii geometrice (reflexia, refracția, principiul lui Fermat, oglinzi, miraje, dispersia, lentile), opticii fizice (undele luminoase, principiul Huygens–Fresnel, difracția, interferența, polarizarea, vederea tridimensională, holografia), opticii cuantice (fotoni, efectul fotoelectric, dualitatea undă-particulă, principiul incertitudinii, complementaritatea) și culorilor (transparența, translucența, amestecul culorilor, culori complementare, pigmenți), în conexiune cu teoriile fundamentale ale luminii. Despre proprietățile luminii (unde electromagnetice, spectrul electromagnetic, materiale transparente și opace, umbra, sistemul vizual uman, lumina Soarelui) și emisia luminii (stări excitate, spectrele de emisie (...)
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  48. Electrodynamics and Spacetime Geometry: Foundations.Francisco Cabral & Francisco S. N. Lobo - 2017 - Foundations of Physics 47 (2):208-228.
    We explore the intimate connection between spacetime geometry and electrodynamics. This link is already implicit in the constitutive relations between the field strengths and excitations, which are an essential part of the axiomatic structure of electromagnetism, clearly formulated via integration theory and differential forms. We review the foundations of classical electromagnetism based on charge and magnetic flux conservation, the Lorentz force and the constitutive relations. These relations introduce the conformal part of the metric and allow the study of electrodynamics for (...)
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  49. Mechanism of high velocity electromagnetic deformation of Al–Mg alloy.Q. Chen, X. T. Han, J. W. Wu, Q. L. Cao, L. T. Huang, L. Liu & L. Li - 2017 - Philosophical Magazine 97 (1):69-83.
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  50. Classification of materials with divergent magnetic Grüneisen parameter.P. Gegenwart - 2017 - Philosophical Magazine 97 (36):3415-3427.
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