Bibliographies thématiques / Physics of disorder

Littérature scientifique sur le sujet « Physics of disorder »

Auteur : Grafiati
Publié le 10 mars 2023

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Articles de revues sur le sujet "Physics of disorder"

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Sadatian, Seyed Davood. « Orderly Disorder in Modern Physics ». International Letters of Chemistry, Physics and Astronomy 48 (mars 2015) : 163–72. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.48.163.

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Fractal structures in various subjects are taken into consideration. In this article, we study fractal structures in physics which could be found or might be existent. Basically, fractals are important because they CHANGE the most basic ways we analyze and understand physics and experimental data.
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Sadatian, Seyed Davood. « Orderly Disorder in Modern Physics ». International Letters of Chemistry, Physics and Astronomy 48 (25 mars 2015) : 163–72. http://dx.doi.org/10.56431/p-43z834.

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Fractal structures in various subjects are taken into consideration. In this article, we study fractal structures in physics which could be found or might be existent. Basically, fractals are important because they CHANGE the most basic ways we analyze and understand physics and experimental data.
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Voss, D. « APPLIED PHYSICS : Light amid Disorder ». Science 319, no 5864 (8 février 2008) : 699c. http://dx.doi.org/10.1126/science.319.5864.699c.

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Cho, A. « STATISTICAL PHYSICS : A Fresh Take on Disorder, Or Disorderly Science ? » Science 297, no 5585 (23 août 2002) : 1268–69. http://dx.doi.org/10.1126/science.297.5585.1268.

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Beavers, Christine M., et Theocharis Stamatatos. « Disorder ! Disorder ! Disorder ! » Acta Crystallographica Section A Foundations and Advances 73, a1 (26 mai 2017) : a301. http://dx.doi.org/10.1107/s0108767317097057.

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Yu, Sunkyu, Xianji Piao, Jiho Hong et Namkyoo Park. « Metadisorder for designer light in random systems ». Science Advances 2, no 10 (octobre 2016) : e1501851. http://dx.doi.org/10.1126/sciadv.1501851.

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Disorder plays a critical role in signal transport by controlling the correlation of a system, as demonstrated in various complex networks. In wave physics, disordered potentials suppress wave transport, because of their localized eigenstates, from the interference between multiple scattering paths. Although the variation of localization with tunable disorder has been intensively studied as a bridge between ordered and disordered media, the general trend of disorder-enhanced localization has remained unchanged, and the existence of complete delocalization in highly disordered potentials has not been explored. We propose the concept of “metadisorder”: randomly coupled optical systems in which eigenstates can be engineered to achieve unusual localization. We demonstrate that one of the eigenstates in a randomly coupled system can always be arbitrarily molded, regardless of the degree of disorder, by adjusting the self-energy of each element. Ordered waves with the desired form are then achieved in randomly coupled systems, including plane waves and globally collective resonances. We also devise counterintuitive functionalities in disordered systems, such as “small-world–like” transport from non–Anderson-type localization, phase-conserving disorder, and phase-controlled beam steering.
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Ziegler, K. « Disorder physics in mixtures of fermionic atoms ». Laser Physics 16, no 4 (avril 2006) : 699–706. http://dx.doi.org/10.1134/s1054660x06040268.

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Gaskell, P. H. « Solid state physics : Unravelling disorder in glass ». Nature 317, no 6035 (septembre 1985) : 285–86. http://dx.doi.org/10.1038/317285a0.

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Tyutyunnik, Vyacheslav M. « Disorder and fluctuations in complex physical systems : Nobel Prize winner in physics 2021 Giorgio Parisi ». Image Journal of Advanced Materials and Technologies 6, no 4 (2021) : 243–46. http://dx.doi.org/10.17277/jamt.2021.04.pp.243-246.

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In 2021, the Nobel Prize in Physics was awarded “for innovative contributions to our understanding of complex systems,” with half awarded jointly to Shukuro Manabe and Klaus Hasselmann “for the physical modelling of Earth’s climate, quantifying variability and reliably predicting global warming”, and the other half to Giorgio Parisi “for the discovery of the interplay of disorder and fluctuations in physical systems from atomic to planetary scales”. Parisi discovered hidden patterns in disordered, complex materials. His discoveries are one of the most important contributions to the theory of complex systems. He proved that equilibrium is never achieved in spin glasses, because frustrations do not allow all limitations to be satisfied. In reality, there are an infinite number of practically equilibrium states in which frustrations tend to a minimum. Parisi’s research interests cover 14 different directions.
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Ray, Purusattam. « Statistical physics perspective of fracture in brittle and quasi-brittle materials ». Philosophical Transactions of the Royal Society A : Mathematical, Physical and Engineering Sciences 377, no 2136 (26 novembre 2018) : 20170396. http://dx.doi.org/10.1098/rsta.2017.0396.

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We discuss the physics of fracture in terms of the statistical physics associated with the failure of elastic media under applied stresses in presence of quenched disorder. We show that the development and the propagation of fracture are largely determined by the strength of the disorder and the stress field around them. Disorder acts as nucleation centres for fracture. We discuss Griffith's law for a single crack-like defect as a source for fracture nucleation and subsequently consider two situations: (i) low disorder concentration of the defects, where the failure is determined by the extreme value statistics of the most vulnerable defect (nucleation regime) and (ii) high disorder concentration of the defects, where the scaling theory near percolation transition is applicable. In this regime, the development of fracture takes place through avalanches of a large number of tiny microfractures with universal statistical features. We discuss the transition from brittle to quasi-brittle behaviour of fracture with the strength of disorder in the mean-field fibre bundle model. We also discuss how the nucleation or percolation mode of growth of fracture depends on the stress distribution range around a defect. We discuss the corresponding numerical simulation results on random resistor and spring networks. This article is part of the theme issue ‘Statistical physics of fracture and earthquakes’.
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Thèses sur le sujet "Physics of disorder"

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Lee, Soon-Gul. « Experimental study of the effects of disorder in weakly disordered superconducting aluminum films / ». The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487588939089315.

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Rodriguez-Vega, Martin Alexander. « Disorder Effects in Dirac Heterostructures ». W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1477068246.

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In this dissertation, we study theoretically heterostructures based on Dirac mate- rials, i.e. materials, such as graphene in which the electrons behave as massless Dirac fermions at low energies. We first examine how the presence of long-range disorder affects the electronic ground state of a double layer graphene heterostruc- ture formed by two graphene layers separated by a thin dielectric film. We then identify the necessary conditions for the formation of an interlayer exciton conden- sate in such a system. We also comment on the effect of long-range disorder on the broken symmetry ground state induced by electron-electron interactions in bilayer graphene. Then, we study the transport properties of heterostructures obtained by stacking a graphene layer on the surface of a strong three-dimensional topological insulator (TI). In particular, we determine the non-equilibrium current-induced spin density accumulation for these systems using linear response theory and taking into account the effects of long- and short-range disorder both in the limit of strong and weak tunneling between the graphene layer and the TI. Finally, using some of the theoretical approaches developed to characterize the effect of long-range disorder in Dirac materials, we study the effect of long-range inhomogeneities in first-order phase transitions. In particular, we present a theoretical model to describe the ef- fect of inhomogeneities on the relaxation dynamics of vanadium dioxide films after a photo-induced metal-insulator transition.
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Klales, Anna. « A Classical Perspective on Non-Diffractive Disorder ». Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:26718765.

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The unifying themes connecting the chapters in this dissertation are the profound and often surprising effects of disorder in classical and quantum systems and the tremendous insight gained from a classical perspective, even in quantum systems. In particular, we investigate disorder in the form of weak, spatially correlated random potentials, i.e. far from the Anderson Localization regime. We present a new scar-like phenomenon in quantum wells. With the introduction of local impurities to the oscillator, the eigenstates localize onto classical periodic orbits of the unperturbed system. Compared to traditional scars in chaotic billiards, these scars are both more common and stronger. Though the unperturbed system has circular symmetry, the random perturbation selects a small number of orientations which are shared by many scarred states -- dozens or even hundreds -- over a range of energies. We show, via degenerate perturbation theory, that the cause of the new scars is the combination of an underlying classical resonance of the unperturbed system and a perturbation induced coupling that is strongly local in action space. Next we examine the same type of local perturbation applied to an open system: branched flow. Caustics in the manifold of trajectories have been implicated in the formation of strong branches. We show that caustic formation is intimately tied to compression of manifolds of trajectories in phase space, which has important implications for the position space density. We introduce the "Kick and Drift" model, a generalization of the standard map. The model is a good approximation to the full two dimensional dynamics of a wave propagating over a weak random potential, but it provides a simpler framework for studying branched flow. Next we develop a classical model for electrons executing cyclotron motion in a graphene flake and implement it numerically. We derive classical equations of motion for electrons moving through the graphene flake with a position dependent effective mass due to fluctuations in the background carrier density. I apply these methods to an experiment performed by the Westervelt group. They imaged the flow of electrons in a graphene flake by measuring the transresistance as they rastered a charged scanning probe microscope tip over the surface. My simulations show that the regions with the greatest change in transresistance do always coincide with the regions with the highest current density. Furthermore I show that the experimental results can qualitatively reproduced by treating the system classically. Finally, we extend Heller's thawed Gaussian approximation from second order in the classical action to third order, in order to capture curvature in phase space. Such phase space dynamics are ubiquitous in systems with weak random potentials, such as those discussed above. We derive a closed form solution, but find that more work needs to be done to make it numerically tractable and competitive with other methods. A semiclassical method capturing phase space curvature could provide insight into the behavior of scars away from the hbar goes to zero limit.
Physics
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Pyun, Deuk Soo. « Experimental study of the disorder effect in strongly disordered superconducting amorphous composite indium/indium oxide films / ». The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487681148544033.

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Brinckerhoff, William B. « Dimensionality and disorder in molecule-based magnets ». The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343143081.

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Jones, Maximilian. « Disorder in multi-channel Luttinger liquids ». Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8147/.

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This thesis examines the effects of disorder upon a bundle of coupled one dimensional (ID) systems. Each 1D system is described as a Luttinger liquid, and the coupling between channels is weak enough such that this description remains valid. The coupling can be of either a density-density or current-current type. We consider continuous disorder in each channel, and derive renormalisation group (RG) equations governing the strength of the disorder. We analyse the effects of disorder in two specific examples: a lattice of identical channels, and two distinct channels. In both cases, close to the simultaneous metal-insulator transition, we arrive at coupled Berezinskii-Kosterlitz-Thouless (BKT) equations. Away from the simultaneous transition we analyse the RG equations numerically. Inter-channel interactions are found to shift the metal-insulator boundary, and destroy the mixed insulator-conductor phase close to the simultaneous transition.
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Willans, Adam J. « Disorder in an exactly solvable quantum spin liquid ». Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:8ea5b2cc-4843-44ef-aa0a-8535f00c6dc8.

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We investigate the properties of the Kitaev honeycomb model with both site dilution and exchange randomness. Embarking on this work, we review disorder in some strongly correlated electron systems, including spin-½ and spin-1 Heisenberg antiferromagnetic chains, two dimensional Heisenberg antiferromagnets, the cuprates and graphene. We outline some aspects of resonating valence bond phases, valence bond solids, spin liquids and quantum computation that are pertinent to an understanding of the Kitaev model. The properties of the Kitaev model without disorder are discussed and it is found to be a critical spin liquid, with algebraic correlations in two spin operators sigma^{alpha}_{i}sigma^{alpha}_{j}, where i and j,/em> are either end of a link of type alpha = x, y or z on the honeycomb lattice. The Kitaev model is exactly solvable and we show that this remains so in the presence of site dilution and exchange randomness. We find that vacancies bind a flux. In the gapped phase, a vacancy forms an effective paramagnetic moment. With two or more vacancies we describe the interaction of their effective moments and show that a finite density of vacancies leads to a divergent macroscopic susceptibility at small fields. In the gapless phase the effective moment has a susceptibility that is, to leading order at small fields, chi(h)~log(1/h). Interaction between the moments from two vacancies on opposite sublattices cuts off this divergence in susceptibility at a large but finite constant. Two vacancies on the same sublattice behave quite differently and we find the combined susceptibility is parametrically larger than that of an isolated vacancy, chi(h)sim [h(log(1/h))^{3/2}]^{-1}. We also investigate the effects of slowly varying, quenched disorder in exchange coupling. We demonstrate that this does not qualitatively affect the susceptibility but show that the heat capacity C ~ T^{2/z}, where z is a measure of the disorder and increases from one with increasing disorder strength.
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Vestergren, Anders. « From Order to Disorder in High Temperature Superconductors ». Doctoral thesis, KTH, Physics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3833.

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Phase transitions in a number of models related to hightemperature superconductors are investigated, using scalingmethods and Monte Carlo simulations. This thesis considers twomain topics.

The first topic is phase transitions, phase diagrams, andvortex motion in high temperature superconductors at finitetemperature, subject to magnetic fields and disorder. We studya vortex glass model at finite temperature, with stronguncorrelated vortex pinning and a magnetic field. We find thatthe vortex glass exists at finite temperature and calculate thecritical exponents of the transition. We also investigate hightemperature superconductors with columnar disorder in zero andapplied magnetic fields. Some of these studies are alsorelevant for the superfluid to Mott insulator transition ofbosons in two dimensions. We find that the unscreened Boseglass transition belongs to a new universality class. Wecalculate the critical exponents of the superconductingtransition with columnar defects in zero applied magneticfield. The transverse Meissner transition is studied, and wefind an exotic universality class with a correlation volumethat is infinitely anisotropic in all directions.

The second topic is confinement-deconfinement transitions incompact Abelian Higgs models. We develop a new order parameter,related to a large Wilson loop for fractionalized charges, anduse it to study the concept of topological order. Thesetransitions may be relevant for strongly correlated electronsin two dimensions.

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Ward, S. N. E. « Spin ladder physics and the effect of random bond disorder ». Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1462036/.

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This PhD thesis concerns the physics of low-dimensional quantum systems and especially quantum spin ladders. Novel metal-organic compounds (C5H12N)2CuBr4 and (C5H12N)2CuCl4 are investigated as model materials for low-dimensional quantum behavior by neutron scattering experiments and by measurements of magnetic and thermodynamic properties. The experimental results are compared quantitatively to calculations using a variety of theoretical and numerical methods (DMRG, ED) of the ground state and excitations of such systems. Key results are the determination of the Hamiltonian and its exchange parameters of (C5H12N)2CuCl4 studied here for the first time from quantitative modelling of magnetic susceptibility and neutron spectroscopy data. When a magnetic field is applied two quantum critical points occur at which fractionalization of the elementary quasi-particle excitations is ob- served. The characteristic excitation continua are explained by effective spin-chain and t-J models and are observed systematically as a function of magnetic field and temperature. Coherent and incoherent spin Luttinger-liquid physics is observed and for the first time modelled fully quantitatively. The chemical flexibility of the these metal-organic compounds allows continuous solid-state mixtures of Br and Cl resulting in systems with quenched disorder. The rung and leg exchange parameters assume discrete values given by the specific chemical composition of the exchange pathways. The influence of such quenched disorder on the excitations of quantum spin ladders has been studied experimentally. The observed spectra with damped excitations of the unperturbed ladder and more localized modes provide detailed insights into the physics that may be observed in such systems if a magnetic field is applied and so called Bose glass phases are induced.
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Cunha, Frederico. « A surface charge induced order-disorder phase transition in organic monolayers ». FIU Digital Commons, 1995. http://digitalcommons.fiu.edu/etd/2690.

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Adenine and 2-2' bipyridine monolayer films adsorbed on Au (111) have been studied by Scanning Tunneling Microscopy (STM) in solution as a function of surface charge and bulk concentration. Both molecules form polymer chains. The length of the polymer chains increases as the concentration increases. At low charges they are randomly oriented, but they begin to align in parallel as the charge density reaches a critical value. The transition, which resembles the isotropic-nematic phase transition encountered in liquid-crystals, is fully reversible by lowering the charge below the critical value.
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Livres sur le sujet "Physics of disorder"

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Catlow, C. R. A. Defects and Disorder in Crystalline and Amorphous Solids. Dordrecht : Springer Netherlands, 1994.

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Efros, A. L. Physics and geometry of disorder : Percolation theory. Moscowa : Mir Publishers, 1986.

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Ėfros, A. L. Physics and geometry of disorder : Percolation theory. Moskva : Mir Publishers, 1986.

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Morán-López, J. L. Oxygen Disorder Effects in High-Tc Superconductors. Boston, MA : Springer US, 1990.

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Parisi, Giorgio. Field theory, disorder and simulations. Singapore : World Scientific, 1992.

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1935-1987, Adler David, Fritzsche Hellmut, Ovshinsky Stanford R et Mott, N. F. Sir, 1905-, dir. Physics of disordered materials. New York : Plenum Press, 1985.

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Yurij, Holovatch, et Franko Ivan, dir. Order, disorder and criticality : Advanced problems of phase transition theory. Singapore : World Scientific, 2003.

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Kh, Abdullaev F., Bang Ole et Sørensen Mads Peter, dir. Nonlinearity and disorder : Theory and applications. Dordrecht : Kluwer Academic Publishers, 2001.

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D, Lavrentovich Oleg, dir. Soft matter physics : An introduction. New York : Springer, 2003.

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Cusack, N. The physics of structurally disordered matter : An introduction. Bristol : A. Hilger in association with the University of Sussex Press, 1987.

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Chapitres de livres sur le sujet "Physics of disorder"

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Arcangelis, Lucilla. « Fractals and Multifractals in Physics ». Dans Disorder and Mixing, 31–42. Dordrecht : Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2825-1_3.

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Krumhansl, J. A. « Disorder and Nonlinearity ». Dans Springer Proceedings in Physics, 142. Berlin, Heidelberg : Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74893-6_16.

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Würger, Alois. « Average over disorder ». Dans Springer Tracts in Modern Physics, 193–98. Berlin, Heidelberg : Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0109205.

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Kalt, Heinz, et Claus F. Klingshirn. « Electronic Defects and Disorder ». Dans Graduate Texts in Physics, 273–95. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24152-0_18.

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Rössler, Ulrich. « Defects, Disorder, and Localization ». Dans Advanced Texts in Physics, 255–79. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09940-7_9.

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Auerbach, Assa. « Disorder in Low Dimensions ». Dans Graduate Texts in Contemporary Physics, 61–68. New York, NY : Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-0869-3_6.

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Prost, J., et C. E. Williams. « Liquid Crystals : Between Order and Disorder ». Dans Soft Matter Physics, 289–315. Berlin, Heidelberg : Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-662-03845-1_9.

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Giovannella, C. « Disorder, Frustration and Critical Exponents ». Dans Springer Proceedings in Physics, 93–99. Berlin, Heidelberg : Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-51005-2_17.

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Martínez, J. R., G. Muñiz et J. Urias. « Structural Disorder at Low Densities ». Dans Springer Proceedings in Physics, 230–37. Berlin, Heidelberg : Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75553-8_26.

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Wehr, Jan. « Rounding Effects in Systems with Static Disorder ». Dans Mathematical Physics X, 355–58. Berlin, Heidelberg : Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-77303-7_35.

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Actes de conférences sur le sujet "Physics of disorder"

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Kuhl, U. « Microwave experiments on correlated disorder ». Dans Mesoscopic Physics in Complex Media. Les Ulis, France : EDP Sciences, 2010. http://dx.doi.org/10.1051/iesc/2010mpcm01017.

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Izrailev, F. M. « Anderson localization and correlated disorder ». Dans Mesoscopic Physics in Complex Media. Les Ulis, France : EDP Sciences, 2010. http://dx.doi.org/10.1051/iesc/2010mpcm01006.

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Shindou, Ryuichi, Ken-Ichiro Imura et Masao Ogata. « Disorder Operator In 2D Insulating States ». Dans LOW TEMPERATURE PHYSICS : 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2354842.

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Felici, M., R. Trotta, F. Masia, A. Polimeni, A. Miriametro, M. Capizzi, P. J. Klar et W. Stolz. « Investigation of Compositional Disorder in GaAsN:H ». Dans PHYSICS OF SEMICONDUCTORS : 28th International Conference on the Physics of Semiconductors - ICPS 2006. AIP, 2007. http://dx.doi.org/10.1063/1.2729893.

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Kustanovich, Tamar, et Zeev Olami. « Structural and elastic disorder in Lennard Jones glass ». Dans PHYSICS OF GLASSES. ASCE, 1999. http://dx.doi.org/10.1063/1.1301467.

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Klotsa, Daphne K. « Electronic Transport in DNA — the Disorder Perspective ». Dans PHYSICS OF SEMICONDUCTORS : 27th International Conference on the Physics of Semiconductors - ICPS-27. AIP, 2005. http://dx.doi.org/10.1063/1.1994493.

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Canright, G. S. « Two definitions of fractional statistics in condensed matter physics ». Dans Ordering disorder : Prospect and retrospect in condensed matter physics. AIP, 1992. http://dx.doi.org/10.1063/1.44740.

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Behera, S. N. « ELECTRONIC CORRELATION and DISORDER EFFECTS in METALS ». Dans Winter Workshop on Condensed Matter Physics. WORLD SCIENTIFIC, 1991. http://dx.doi.org/10.1142/9789814541329.

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Ghorbani, S. R., M. Andersson et Ö Rapp. « Disorder Driven Localization in Charge Neutrally Doped 123 Superconductors ». Dans LOW TEMPERATURE PHYSICS : 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2354774.

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Fisher, L. M., A. V. Kalinov, I. F. Voloshin, N. A. Babushkina, D. I. Khomskii et T. T. M. Palstra. « Quenched-Disorder-Induced Magnetization Jumps in (Sm,Sr)MnO3 ». Dans LOW TEMPERATURE PHYSICS : 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2355130.

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Rapports d'organisations sur le sujet "Physics of disorder"

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Reichhardt, Cynthia Jane. The Physics of Disorder. Office of Scientific and Technical Information (OSTI), octobre 2018. http://dx.doi.org/10.2172/1479894.

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Zilberman, Mark. Good and Evil from the Point of View of Physics. Intellectual Archive, décembre 2022. http://dx.doi.org/10.32370/iaj.2763.

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The article analyzes the concepts of "good" and "evil" from the point of view of physics. Although the physical concept of “entropy” as a measure of disorder was the first candidate who could serve as the physical basis of these ethical concepts, in fact it is not suitable for this purpose. However, the “entropic potential of the event” Z (T, A) that describes the impact of the event A that occurred in the moment T0 in the system R to the entropy of this system at the future moment T (T > T0) is well suited for our analysis. The article describes methods for calculating the “entropic potential of the event” for certain real-life events and discuss several other related ideas, such as “time factor”, “averaging” and “universality”.
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Meng, Shu-Qiao, Ai-Guo Chen, Wen-Xia Tong, Shi-Meng Wang et Zhi-Yuan Sun. The Effect of Physical Activity on Motor Skills Disorder of Children with Autism Spectrum Disorder : A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, février 2023. http://dx.doi.org/10.37766/inplasy2023.2.0068.

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Review question / Objective: Meta-analysis was used to systematically investigate the improvement effect of physical activity on motor skills disorder in children with autism spectrum disorder (ASD), and to summarize the best exercise program. To obtain high-quality study results, the PICOS principles are usually relied upon to help complete the study design during the construction of the scientific question. That is, the target population (P) for evidence application is children with ASD; the intervention (I) is motor training such as aerobic, resistance exercise or combined exercise; the comparative measure (C) is other non-motor interventions; the outcome indicators (O) are improvements in gross motor ability, fine motor ability, and balance and coordination; and the type of evidence is a randomized controlled trial. Eligibility criteria: Subjects included in the paper were required to be children with ASD diagnosed by an authoritative institution, with consistent pre-experimental characteristics; with a complete intervention program and accurate post-test results, and the type of study in the literature was a randomized controlled trial.
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Zhang, Meiqi, et Jingxin Liu. Health related physical fitness in children with developmental coordination disorder. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, avril 2022. http://dx.doi.org/10.37766/inplasy2022.4.0168.

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Michael Sachs, Michael Sachs. Increasing Regular Physical Activity Participation in Adults with Autism Spectrum Disorder. Experiment, juin 2017. http://dx.doi.org/10.18258/9575.

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MOSKALENKO, OLGA, et ROMAN YASKEVICH. ANXIETY-DEPRESSIVE DISORDERS IN PATIENTS WITH ARTERIAL HYPERTENSION. Science and Innovation Center Publishing House, mars 2021. http://dx.doi.org/10.12731/2658-4034-2021-12-1-2-185-190.

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Our article presents a review of the literature and considers the most pressing problem of modern medicine - a combination of anxiety-depressive states in patients with cardiovascular diseases, which are more common in people of working age, having a negative impact on the quality of life of patients, contributing to the deterioration of physical, mental and social adaptation, which further leads to negative socio-economic consequences.
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Sun, Wenxin, Mingxuan Yu et Xing Wang. Effects of Physical Exercise on Attention Deficit Hyperactivity Disorder in Children : A Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, avril 2021. http://dx.doi.org/10.37766/inplasy2021.4.0113.

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Li, Yinhua, Wanting Lan et Xiaohui Hou. The effectiveness of physical activities on children with autism spectrum disorder : A systematic review and network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, avril 2022. http://dx.doi.org/10.37766/inplasy2022.4.0034.

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Review question / Objective: The purpose of this meta-analysis was to evaluate the efficacy of different physical activity interventions and to determine which physical activity interventions are most effective for children with autism spectrum disorder. Condition being studied: Autism is a set of heterogeneous neurodevelopmental conditions, characterized by early-onset difficulties in social communication and unusually restricted, repetitive behavior and interests. Autism affects more male than female individuals, and comorbidity is common (>70% have concurrent conditions). Exercise has increasingly emerged as one of the promising compensation methods that can positively affect autistic symptoms. The positive effects of various physical activity interventions have been reported, but it is unclear which interventions are most effective at improving symptoms of autism.
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Zhenni, Mu, Le Lei, Shen Sinan et Tang Li. Effectiveness of integrated Chinese herbal medicine Shoutai Pill and Western medicine in the treatment of recurrent pregnancy loss : A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, octobre 2021. http://dx.doi.org/10.37766/inplasy2021.10.0062.

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Review question / Objective: We provide a protocol to evaluate the efficacy of integrated Shoutai Pill and Western medicine to update the evaluation for the best available and security treatment for recurrent pregnancy loss(RPL). Condition being studied: Recurrent pregnancy loss (RPL) is a distinct disorder defined by two or more consecutive pregnancy failures before 20 gestational weeks infertile couples. The incidence of this disease accounts for about 1%-5% of women of reproductive age and seriously affects their physical and psychological health. At present, the known etiology of this disease mainly includes abnormal anatomic structures, genetic abnormality, endocrine disorders, prethrombotic status, abnormal immune function, infection, etc. Excluding the above factors, approximately 40-50% of RPL remain unexplained, known as unexplained recurrent pregnancy loss (URPL). At present, the main therapeutic methods of RPL are surgical therapy, preimplantation genetic diagnosis (PGD), hormone therapy, anti-infection therapy, anticoagulation, and immunoregulatory therapy, etc. However, there is no effective treatment has been identified for URPL. Therefore, we still need to investigate effective treatments to reduce pregnancy losses and maintain successful pregnancy preservation in these patients.
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ji, yuqin, hao tian, qiang ye, zhuoyan ye et zeyu zheng. Effectiveness of exercise intervention on improving fundamental motor skills in children with autism spectrum disorder : A systematic review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, décembre 2022. http://dx.doi.org/10.37766/inplasy2022.12.0013.

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Review question / Objective: This systematic review and meta-analysis aimed to synthesize available randomized controlled trial studies concerning the effects of exercise interventions on fundamental motor skills in children with autism spectrum disorder. Condition being studied: Autism Spectrum Disorder (ASD) is a complicated and highly prevalent neuro-developmental disorder characterized by deficits in social communication, restricted interests, and repetitive behaviors. The CDC reported that the prevalence of ASD was estimated to be 1 in 59 in the United States by 2020. Along with typical symptoms, a couple of studies have indicated that individuals with ASD encounter a variety of challenges, including sleep disturbance, obesity, executive function deficits, physical inactivity, and motor dysfunctions. Fundamental motor skills (FMS) are the unnaturally occurring basic motor learning model of the human body, which are the building blocks for advanced specialized motor skills and for children and adolescents to participate in sports, games, or other context-specific physical activity.FMS falls into three different categories: (a) locomotor skills (e.g., running and hopping), (b) object control skills (e.g., catching and throwing), and balance or stability skills (e.g., balancing and twisting).
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