Results for 'Metastability'

86 found
Order:
  1.  27
    Topodynamics of Metastable Brains.Arturo Tozzi, James F. Peters, Andrew A. Fingelkurts, Alexander A. Fingelkurts & Pedro C. Marijuán - 2017 - Physics of Life Reviews 21:1-20.
    The brain displays both the anatomical features of a vast amount of interconnected topological mappings as well as the functional features of a nonlinear, metastable system at the edge of chaos, equipped with a phase space where mental random walks tend towards lower energetic basins. Nevertheless, with the exception of some advanced neuro-anatomic descriptions and present-day connectomic research, very few studies have been addressing the topological path of a brain embedded or embodied in its external and internal environment. Herein, by (...)
    Direct download  
     
    Export citation  
     
    Bookmark   5 citations  
  2.  6
    A Metastable Icosahedral Quasicrystal in the Zn–Mg–Yb Alloy System.T. Mitani & T. Ishimasa - 2006 - Philosophical Magazine 86 (3-5):361-366.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  3.  4
    Metastability in the Furstenberg-Zimmer Tower.Jeremy Avigad & Henry Towsner - unknown
    According to the Furstenberg-Zimmer structure theorem, every measure-preserving system has a maximal distal factor, and is weak mixing relative to that factor. Furstenberg and Katznelson used this structural analysis of measure-preserving systems to provide a perspicuous proof of Szemer\'edi's theorem. Beleznay and Foreman showed that, in general, the transfinite construction of the maximal distal factor of a separable measure-preserving system can extend arbitrarily far into the countable ordinals. Here we show that the Furstenberg-Katznelson proof does not require the full strength (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  4.  18
    The Structure of the Metastable Precipitates Formed During Ageing of an Al-Mg-Si Alloy.M. H. Jacobs - 1972 - Philosophical Magazine 26 (1):1-13.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  5.  41
    The Affective Core of Emotion: Linking Pleasure, Subjective Well-Being, and Optimal Metastability in the Brain.Morten L. Kringelbach & Kent C. Berridge - 2017 - Emotion Review 9 (3):191-199.
    Arguably, emotion is always valenced—either pleasant or unpleasant—and dependent on the pleasure system. This system serves adaptive evolutionary functions; relying on separable wanting, liking, and learning neural mechanisms mediated by mesocorticolimbic networks driving pleasure cycles with appetitive, consummatory, and satiation phases. Liking is generated in a small set of discrete hedonic hotspots and coldspots, while wanting is linked to dopamine and to larger distributed brain networks. Breakdown of the pleasure system can lead to anhedonia and other features of affective disorders. (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   12 citations  
  6.  20
    Neuroeconomics and the Metastable Brain.O. Oullier & J. Kelso - 2006 - Trends in Cognitive Sciences 10 (8):353-354.
  7.  3
    Ultraproducts and Metastability.Jeremy Avigad & Jose Iovino - unknown
    Given a convergence theorem in analysis, under very general conditions a model-theoretic compactness argument implies that there is a uniform bound on the rate of metastability. We illustrate with three examples from ergodic theory.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  8.  24
    Metastable Superconducting State in Quenched KxFe2−ySe2.Fei Han, Huan Yang, Bing Shen, Zhen-Yu Wang, Chun-Hong Li & Hai-Hu Wen - 2012 - Philosophical Magazine 92 (19-21):2553-2562.
  9.  38
    Information Flow in the Brain: Ordered Sequences of Metastable States.Andrew A. Fingelkurts & Alexander A. Fingelkurts - 2017 - Information 8 (1):22.
    In this brief overview paper, we analyse information flow in the brain. Although Shannon’s information concept, in its pure algebraic form, has made a number of valuable contributions to neuroscience, information dynamics within the brain is not fully captured by its classical description. These additional dynamics consist of self-organisation, interplay of stability/instability, timing of sequential processing, coordination of multiple sequential streams, circular causality between bottom-up and top-down operations, and information creation. Importantly, all of these processes are dynamic, hierarchically nested and (...)
    Direct download  
     
    Export citation  
     
    Bookmark   5 citations  
  10.  4
    A Metastable Dominated Convergence Theorem.Jeremy Avigad, Edward T. Dean & Jason Rute - unknown
    The dominated convergence theorem implies that if is a sequence of functions on a probability space taking values in the interval [0, 1], and converges pointwise a.e., then converges to the integral of the pointwise limit. Tao [26] has proved a quantitative version of this theorem: given a uniform bound on the rates of metastable convergence in the hypothesis, there is a bound on the rate of metastable convergence in the conclusion that is independent of the sequence and the underlying (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  11.  8
    The Metastability of Primitive Artefacts.Tsili Doleve-Gandelman & Claude Gandelman - 1989 - Semiotica 75 (3-4):191-214.
    Direct download  
     
    Export citation  
     
    Bookmark  
  12.  66
    Making Complexity Simpler: Multivariability and Metastability in the Brain.Andrew And Alexander Fingelkurts - 2004 - International Journal of Neuroscience 114 (7):843 - 862.
    This article provides a retrospective, current and prospective overview on developments in brain research and neuroscience. Both theoretical and empirical studies are considered, with emphasis in the concept of multivariability and metastability in the brain. In this new view on the human brain, the potential multivariability of the neuronal networks appears to be far from continuous in time, but confined by the dynamics of short-term local and global metastable brain states. The article closes by suggesting some of the implications (...)
    Direct download  
    Translate
     
     
    Export citation  
     
    Bookmark   15 citations  
  13.  7
    Spontaneous Transformation of Metastable Β-Brass in Thin Foils.D. Hull - 1962 - Philosophical Magazine 7 (76):537-550.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  14.  11
    Rhythms of the Collective Brain: Metastable Synchronization and Cross-Scale Interactions in Connected Multitudes.Miguel Aguilera - 2018 - Complexity 2018:1-9.
    Crowd behaviour challenges our fundamental understanding of social phenomena. Involving complex interactions between multiple temporal and spatial scales of activity, its governing mechanisms defy conventional analysis. Using 1.5 million Twitter messages from the 15M movement in Spain as an example of multitudinous self-organization, we describe the coordination dynamics of the system measuring phase-locking statistics at different frequencies using wavelet transforms, identifying 8 frequency bands of entrained oscillations between 15 geographical nodes. Then we apply maximum entropy inference methods to describe Ising (...)
    No categories
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  15.  5
    Metastability in Senescence.Shruti Naik, Arpan Banerjee, Raju S. Bapi, Gustavo Deco & Dipanjan Roy - 2017 - Trends in Cognitive Sciences 21 (7):509-521.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  16. Phenomenological Architecture of a Mind and Operational Architectonics of the Brain: The Unified Metastable Continuum.Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves - 2009 - In Robert Kozma & John Caulfield (eds.), Journal of New Mathematics and Natural Computing. Special Issue on Neurodynamic Correlates of Higher Cognition and Consciousness: Theoretical and Experimental Approaches - in Honor of Walter J Freeman's 80th Birthday. World Scientific. pp. 221-244.
    In our contribution we will observe phenomenal architecture of a mind and operational architectonics of the brain and will show their intimate connectedness within a single integrated metastable continuum. The notion of operation of different complexity is the fundamental and central one in bridging the gap between brain and mind: it is precisely by means of this notion that it is possible to identify what at the same time belongs to the phenomenal conscious level and to the neurophysiological level of (...)
    Direct download  
     
    Export citation  
     
    Bookmark   14 citations  
  17.  8
    The Pervasiveness of 1/F Scaling in Speech Reflects the Metastable Basis of Cognition.Christopher T. Kello, Gregory G. Anderson, John G. Holden & Guy C. Van Orden - 2008 - Cognitive Science 32 (7):1217-1231.
  18.  79
    The Metastable Genome: A Lamarckian Organ in a Darwinian World?Ehud Lamm - 2011 - In Eva Jablonka & Snait Gissis (eds.), Transformations of Lamarckism: from subtle fluids to molecular biology. MIT Press.
    This article is arranged around two general claims and a thought experiment. I begin by suggesting that the genome should be studied as a developmental system, and that genes supervene on genomes (rather than the other way around). I move on to present a thought experiment that illustrates the implications a dynamic view of the genome has for central concepts in biology, in particular the information content of the genome, and the notion of responses to stress.
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  19.  14
    Metastable Structures and Size Effects in Small Group Dynamics.Rosapia Lauro Grotto, Andrea Guazzini & Franco Bagnoli - 2014 - Frontiers in Psychology 5.
    Direct download (7 more)  
     
    Export citation  
     
    Bookmark  
  20.  6
    The Metastability of Signs/Metastability as a Sign.Claude Gandelman - 1979 - Semiotica 28 (1-2).
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  21.  3
    The Existence of a Metastable Phase Isomorphous with the Stable Phase of a Pure Metal.J. H. O. Varley - 1957 - Philosophical Magazine 2 (15):384-388.
  22.  6
    Discontinuous Precipitation with Metastableζphase in a Cu–8.6% Sn Alloy.Zeng-Jie Wang & Toyohiko J. Konno - 2013 - Philosophical Magazine 93 (8):949-974.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  23.  15
    Light and Thermally Induced Metastabilities in Electrochemically Etched Nanocrystalline Porous Silicon.N. P. Mandal, M. Awasthi, A. Konar, A. Kumar & D. N. Patel - 2009 - Philosophical Magazine 89 (4):311-321.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  24. On the Theory of Metastable States.A. I. Kirillov - 1997 - Foundations of Physics 27 (12):1701-1708.
    It is shown that the stationary states of stochastic systems are stable. Therefore one cannot use the stationary probability distributions for describing the stochastic systems in metastable states. It is shown that the nonstationary stochastic processes can have sample paths with stationary parts. It is proposed to consider these stationary parts as the metastable states.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  25.  20
    Fluctuations, Effective Learnability and Metastability in Analysis.Ulrich Kohlenbach & Pavol Safarik - 2014 - Annals of Pure and Applied Logic 165 (1):266-304.
    This paper discusses what kind of quantitative information one can extract under which circumstances from proofs of convergence statements in analysis. We show that from proofs using only a limited amount of the law-of-excluded-middle, one can extract functionals , where L is a learning procedure for a rate of convergence which succeeds after at most B-many mind changes. This -learnability provides quantitative information strictly in between a full rate of convergence and a rate of metastability in the sense of (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark  
  26.  12
    Ageing Characteristics of the Metastable Gamma Phase in U–9 Wt.% Mo Alloy: Experimental Observations and Thermodynamic Validation.S. Neogy, M. T. Saify, S. K. Jha, D. Srivastava & G. K. Dey - 2015 - Philosophical Magazine 95 (26):2866-2884.
  27.  11
    Transmission Electron Microscopy Investigation of an Ordered Metastable Phase in Zr-N Alloys.S. Sharma, K. Moore & J. Howe - 2003 - Philosophical Magazine 83 (1):31-51.
    Supersaturated hcp f -Zr alloys containing 22-28 at.% N were prepared by nitriding sheets of Zr in an atmosphere of high-purity N 2 , followed by homogenization under high-purity Ar gas. Quenching and isothermal ageing of the alloys for various times between 500 and 650°C resulted in precipitation of a metastable phase, rather than the equilibrium phase ZrN. This investigation focused on determining the structure, orientation relationship, habit plane, morphology, growth kinetics and atomic growth mechanism of this non-equilibrium precipitate using (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  28.  7
    Elasticity and Metastability Limit in Supercooled Liquids: A Lattice Model.A. Attanasi, A. Cavagna & J. Lorenzana - 2007 - Philosophical Magazine 87 (3-5):441-448.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  29.  18
    Identity and Singularity: Metastability and Morphogenesis in Light of Deleuze.Marcello Barison - 2015 - Filozofija I Društvo 26 (2):334-350.
    The question of life is inextricably connected with the problem of identification and with the fact that each identification process includes the acquisition of a form. Nevertheless, it appears that at the biological level, that is, for what concerns a morphogenetic description of the status of the living being, the term singularity comes into play right there where you would expect to get into the notion of identity. According to Christian De Duve, the organic form has no identity, but it (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  30.  14
    Light-Induced Metastability in Thin Nanocrystalline Silicon Films.M. Bauza, N. P. Mandal, A. Ahnood, A. Sazonov & A. Nathan - 2009 - Philosophical Magazine 89 (28-30):2531-2539.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  31.  9
    Microstructural Evolution and Metastable Phase Formation in Laser Ablation-Deposited Films of Fe-Rich Fe–Ge Intermetallic Compounds.K. Biswas, P. Kumar Das & K. Chattopadhyay - 2007 - Philosophical Magazine 87 (2):307-323.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  32.  7
    Planar Defects in Metastably Retained Hexagonal BaTiO3ceramics: Α-Type Extended Stacking Faults.Yu-Chuan Wu & Hong-Yang Lu † - 2004 - Philosophical Magazine 84 (32):3467-3481.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  33.  29
    A New Metastable Precipitate Phase in Mg–Gd–Y–Zr Alloy.H. Zhou, W. Z. Xu, W. W. Jian, G. M. Cheng, X. L. Ma, W. Guo, S. N. Mathaudhu, Q. D. Wang & Y. T. Zhu - 2014 - Philosophical Magazine 94 (21):2403-2409.
  34.  7
    Decomposition of the Metastable Phase in the Silver-Germanium System.H. O. K. Kirchner, P. Ramachandrarao & G. A. Chadwick - 1972 - Philosophical Magazine 25 (5):1151-1160.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  35. Virtual Reality and Metastable Interactivity.Nebojsa Kujundzic - 2001 - Ends and Means 5 (1):25.
     
    Export citation  
     
    Bookmark  
  36.  7
    James Franck, the Ionization Potential of Helium, and the Experimental Discovery of Metastable States.Clayton A. Gearhart - 2017 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 60:95-109.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  37.  13
    Investigation on Bainite Transformation and Metastable Omega/Orthorhombic Martensite Phases in as-Quenched Cu-Bearing Ferrite Steel.Ranran Ge, Hui Xie, Wei Wang, Shijuan Zhu, Ziying Zhang, Bo Wang & Bangxin Zhou - forthcoming - Philosophical Magazine:1-11.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  38.  7
    Time-Resolved Dielectric Investigation of Relaxation Kinetics in Metastable Caffeine.A. A. Decroix, L. Carpentier & M. Descamps - 2008 - Philosophical Magazine 88 (33-35):3925-3930.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  39.  17
    Towards a Rigorous Molecular Theory of Metastability.O. Penrose & Joel L. Lebowitz - 1987 - In E. W. Montroll & Joel Louis Lebowitz (eds.), Fluctuation Phenomena. Elsevier. pp. 7--293.
    No categories
    Direct download  
     
    Export citation  
     
    Bookmark  
  40.  7
    Solutions of the Fokker-Planck Equation Describing the Metastability of Surface Nanostructure Arrays.D. E. Jesson - 2003 - Transactions of the Royal Society of South Africa 58 (2):141-144.
  41.  10
    State of Two-Dimensional Long-Period Superstructure in the Metastable Fe-Nd-B Phase.Toyohiko J. Konno, Minoru Uehara & Satoshi Hirosawa - 2006 - Philosophical Magazine 86 (10):1427-1441.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  42.  5
    Ferroelectric Solid Solutions with Morphotropic Boundary: Rotational Instability of Polarization, Metastable Coexistence of Phases and Nanodomain Adaptive States.A. G. Khachaturyan - 2010 - Philosophical Magazine 90 (1-4):37-60.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  43.  8
    A Nuclear Magnetic Resonance Study of the Precipitation Sequence of Metastable Phases in an Al-4 Wt.% Cu Alloy.F. Nakamura, N. Matsumoto, K. Furukawa & J. Takamura - 1977 - Philosophical Magazine 36 (6):1355-1365.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  44.  15
    On the Isothermal Kinetics Analysis of Transformations in Metastable Systems: Combined Use of Isothermal and Non-Isothermal Calorimetry.J. S. Blázquez, M. Millán, C. F. Conde & A. Conde - 2007 - Philosophical Magazine 87 (27):4151-4167.
    No categories
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  45.  3
    Philosophy as a Sign-Producing Activity: The Metastable Gestalt of Intentionality.Claude Gandelman - 1982 - Semiotica 39 (1-2):287.
    Direct download  
     
    Export citation  
     
    Bookmark  
  46. A Neglected Aspect of the Puzzle of Chemical Structure: How History Helps.Joseph E. Earley - 2012 - Foundations of Chemistry 14 (3):235-243.
    Intra-molecular connectivity (that is, chemical structure) does not emerge from computations based on fundamental quantum-mechanical principles. In order to compute molecular electronic energies (of C 3 H 4 hydrocarbons, for instance) quantum chemists must insert intra-molecular connectivity “by hand.” Some take this as an indication that chemistry cannot be reduced to physics: others consider it as evidence that quantum chemistry needs new logical foundations. Such discussions are generally synchronic rather than diachronic —that is, they neglect ‘historical’ aspects. However, systems of (...)
    Direct download (6 more)  
     
    Export citation  
     
    Bookmark   4 citations  
  47. Operational Architectonics of the Human Brain Biopotential Field: Toward Solving the Mind-Brain Problem.Andrew A. Fingelkurts & Alexander A. Fingelkurts - 2001 - Brain and Mind 2 (3):261-296.
    The understanding of the interrelationship between brain and mind remains far from clear. It is well established that the brain's capacity to integrate information from numerous sources forms the basis for cognitive abilities. However, the core unresolved question is how information about the "objective" physical entities of the external world can be integrated, and how unifiedand coherent mental states (or Gestalts) can be established in the internal entities of distributed neuronal systems. The present paper offers a unified methodological and conceptual (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   17 citations  
  48. Consciousness as a Phenomenon in the Operational Architectonics of Brain Organization: Criticality and Self-Organization Considerations.Andrew A. Fingelkurts, Alexander A. Fingelkurts & Carlos F. H. Neves - 2013 - Chaos, Solitons and Fractals 55:13-31.
    In this paper we aim to show that phenomenal consciousness is realized by a particular level of brain operational organization and that understanding human consciousness requires a description of the laws of the immediately underlying neural collective phenomena, the nested hierarchy of electromagnetic fields of brain activity – operational architectonics. We argue that the subjective mental reality and the objective neurobiological reality, although seemingly worlds apart, are intimately connected along a unified metastable continuum and are both guided by the universal (...)
    Direct download  
     
    Export citation  
     
    Bookmark   23 citations  
  49.  41
    Self-Organization, Free Energy Minimization, and Optimal Grip on a Field of Affordances.Jelle Bruineberg & Erik Rietveld - 2014 - Frontiers in Human Neuroscience 8:1-14.
    In this paper, we set out to develop a theoretical and conceptual framework for the new field of Radical Embodied Cognitive Neuroscience. This framework should be able to integrate insights from several relevant disciplines: theory on embodied cognition, ecological psychology, phenomenology, dynamical systems theory, and neurodynamics. We suggest that the main task of Radical Embodied Cognitive Neuroscience is to investigate the phenomenon of skilled intentionality from the perspective of the self-organization of the brain-body-environment system, while doing justice to the phenomenology (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   95 citations  
  50.  50
    The Sense of Agency – a Phenomenological Consequence of Enacting Sensorimotor Schemes.Thomas Buhrmann & Ezequiel Di Paolo - 2017 - Phenomenology and the Cognitive Sciences 16 (2):207-236.
    The sensorimotor approach to perception addresses various aspects of perceptual experience, but not the subjectivity of intentional action. Conversely, the problem that current accounts of the sense of agency deal with is primarily one of subjectivity. But the proposed models, based on internal signal comparisons, arguably fail to make the transition from subpersonal computations to personal experience. In this paper we suggest an alternative direction towards explaining the sense of agency by braiding three theoretical strands: a world-involving, dynamical interpretation of (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   14 citations  
1 — 50 / 86