Results for 'Karim PY Thebault'

204 found
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  1. The Role of Time in Relational Quantum Theories.Sean Gryb & Karim Thébault - 2012 - Foundations of Physics 42 (9):1210-1238.
    We propose a solution to the problem of time for systems with a single global Hamiltonian constraint. Our solution stems from the observation that, for these theories, conventional gauge theory methods fail to capture the full classical dynamics of the system and must therefore be deemed inappropriate. We propose a new strategy for consistently quantizing systems with a relational notion of time that does capture the full classical dynamics of the system and allows for evolution parametrized by an equitable internal (...)
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  2.  4
    Schrodinger Evolution for the Universe: Reparametrization.Karim P. Y. Thebault & Sean Gryb - unknown
    Starting from a generalized Hamilton-Jacobi formalism, we develop a new framework for constructing observables and their evolution in theories invariant under global time reparametrizations. Our proposal relaxes the usual Dirac prescription for the observables of a totally constrained system and allows one to recover the influential partial and complete observables approach in a particular limit. Difficulties such as the non-unitary evolution of the complete observables in terms of certain partial observables are explained as a breakdown of this limit. Identification of (...)
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  3.  21
    Three Denials of Time in the Interpretation of Canonical Gravity.Karim P. Y. Thébault - 2012 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 43 (4):277-294.
    The analysis of the temporal structure of canonical general relativity and the connected interpretational questions with regard to the role of time within the theory both rest upon the need to respect the fundamentally dual role of the Hamiltonian constraints found within the formalism. Any consistent philosophical approach towards the theory must pay dues to the role of these constraints in both generating dynamics, in the context of phase space, and generating unphysical symmetry transformations, in the context of a hypersurface (...)
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  4. Dispositions and the Principle of Least Action Revisited.Benjamin T. H. Smart & Karim P. Y. Thébault - 2015 - Analysis 75 (3):386-395.
    Some time ago, Joel Katzav and Brian Ellis debated the compatibility of dispositional essentialism with the principle of least action. Surprisingly, very little has been said on the matter since, even by the most naturalistically inclined metaphysicians. Here, we revisit the Katzav–Ellis arguments of 2004–05. We outline the two problems for the dispositionalist identified Katzav in his 2004 , and claim they are not as problematic for the dispositional essentialist at it first seems – but not for the reasons espoused (...)
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  5.  23
    Against the Empirical Viability of the Deutsch–Wallace–Everett Approach to Quantum Mechanics.Richard Dawid & Karim P. Y. Thébault - 2014 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 47:55-61.
    The subjective Everettian approach to quantum mechanics presented by Deutsch and Wallace fails to constitute an empirically viable theory of quantum phenomena. The decision theoretic implementation of the Born rule realized in this approach provides no basis for rejecting Everettian quantum mechanics in the face of empirical data that contradicts the Born rule. The approach of Greaves and Myrvold, which provides a subjective implementation of the Born rule as well but derives it from empirical data rather than decision theoretic arguments, (...)
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  6.  36
    Confirmation Via Analogue Simulation: A Bayesian Analysis.Radin Dardashti, Stephan Hartmann, Karim P. Y. Thebault & Eric Winsberg - unknown
    Analogue simulation is a novel mode of scientific inference found increasingly within modern physics, and yet all but neglected in the philosophical literature. Experiments conducted upon a table-top ‘source system’ are taken to provide insight into features of an inaccessible ‘target system’, based upon a syntactic isomorphism between the relevant modelling frameworks. An important example is the use of acoustic ‘dumb hole’ systems to simulate gravitational black holes. In a recent paper it was argued that there exists circumstances in which (...)
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  7.  22
    Unsharp Humean Chances in Statistical Physics: A Reply to Beisbart.Luke Glynn, Radin Dardashti, Karim P. Y. Thébault & Mathias Frisch - 2014 - In M. C. Galavotti (ed.), New Directions in the Philosophy of Science. Springer. pp. 531-542.
    In an illuminating article, Claus Beisbart argues that the recently-popular thesis that the probabilities of statistical mechanics (SM) are Best System chances runs into a serious obstacle: there is no one axiomatization of SM that is robustly best, as judged by the theoretical virtues of simplicity, strength, and fit. Beisbart takes this 'no clear winner' result to imply that the probabilities yielded by the competing axiomatizations simply fail to count as Best System chances. In this reply, we express sympathy for (...)
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  8.  36
    Regarding the `Hole Argument' and the `Problem of Time'.Karim P. Y. Thebault & Sean Gryb - unknown
    The canonical formalism of general relativity affords a particularly interesting characterisation of the infamous hole argument. It also provides a natural formalism in which to relate the hole argument to the problem of time in classical and quantum gravity. In this paper we examine the connection between these two much discussed problems in the foundations of spacetime theory along two interrelated lines. First, from a formal perspective, we consider the extent to which the two problems can and cannot be precisely (...)
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  9.  26
    Modelling Inequality.Karim P. Y. Thebault, Seamus Bradley & Alexander Reutlinger - forthcoming - British Journal for the Philosophy of Science.
    Econophysics is a new and exciting cross-disciplinary research field that applies models and modelling techniques from statistical physics to economic systems. It is not, however, without its critics: prominent figures in more mainstream economic theory have criticised some elements of the methodology of econophysics. One of the main lines of criticism concerns the nature of the modelling assumptions and idealisations involved, and a particular target are `kinetic exchange' approaches used to model the emergence of inequality within the distribution of individual (...)
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  10.  56
    Many Worlds: Decoherent or Incoherent?Karim Thébault & Richard Dawid - 2015 - Synthese 192 (5):1559-1580.
    We claim that, as it stands, the Deutsch–Wallace–Everett approach to quantum theory is conceptually incoherent. This charge is based upon the approach’s reliance upon decoherence arguments that conflict with its own fundamental precepts regarding probabilistic reasoning in two respects. This conceptual conflict obtains even if the decoherence arguments deployed are aimed merely towards the establishment of certain ‘emergent’ or ‘robust’ structures within the wave function: To be relevant to physical science notions such as robustness must be empirically grounded, and, on (...)
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  11.  19
    The Disunity of Philosophy of Science as a Worrying Hypothesis.Karim P. Y. Thebault - unknown
    Review of ‘Physical Theory: Method and Interpretation’ edited by Lawrence Sklar.
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  12.  5
    Quantisation, Representation and Reduction; How Should We Interpret the Quantum Hamiltonian Constraints of Canonical Gravity?Karim P. Y. Thébault - unknown
    Hamiltonian constraints feature in the canonical formulation of general relativity. Unlike typical constraints they cannot be associated with a reduction procedure leading to a non-trivial reduced phase space and this means the physical interpretation of their quantum analogues is ambiguous. In particular, can we assume that “quantisation commutes with reduction” and treat the promotion of these constraints to operators annihilating the wave function, according to a Dirac type procedure, as leading to a Hilbert space equivalent to that reached by quantisation (...)
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  13.  1
    Ψ-Epistemic Quantum Cosmology?Peter W. Evans, Sean Gryb & Karim P. Y. Thébault - forthcoming - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics.
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  14.  12
    Gordon Belot , Geometric Possibility . Reviewed By.Karim Thébault - 2012 - Philosophy in Review 32 (2):79-81.
  15.  4
    Symmetry, Ontology and the Problem of Time On the Interpretation and Quantisation of Canonical Gravity.Karim P. Y. Thébault - unknown
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  16. Against the Empirical Viability of the Deutsch–Wallace–Everett Approach to Quantum Mechanics.Richard Dawid & Karim Thébault - 2014 - Studies in History and Philosophy of Science Part B 47:55-61.
    The subjective Everettian approach to quantum mechanics presented by Deutsch and Wallace fails to constitute an empirically viable theory of quantum phenomena. The decision theoretic implementation of the Born rule realized in this approach provides no basis for rejecting Everettian quantum mechanics in the face of empirical data that contradicts the Born rule. The approach of Greaves and Myrvold, which provides a subjective implementation of the Born rule as well but derives it from empirical data rather than decision theoretic arguments, (...)
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  17. Physical Theory: Method and Interpretation.Karim Thébault - 2015 - International Studies in the Philosophy of Science 29 (4):438-441.
  18. Three Denials of Time in the Interpretation of Canonical Gravity.Karim Thébault - 2012 - Studies in History and Philosophy of Science Part B 43 (4):277-294.
    The analysis of the temporal structure of canonical general relativity and the connected interpretational questions with regard to the role of time within the theory both rest upon the need to respect the fundamentally dual role of the Hamiltonian constraints found within the formalism. Any consistent philosophical approach towards the theory must pay dues to the role of these constraints in both generating dynamics, in the context of phase space, and generating unphysical symmetry transformations, in the context of a hypersurface (...)
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  19. Symplectic Reduction and the Problem of Time in Nonrelativistic Mechanics.K. P. Y. Thebault - 2012 - British Journal for the Philosophy of Science 63 (4):789-824.
    Symplectic reduction is a formal process through which degeneracy within the mathematical representations of physical systems displaying gauge symmetry can be controlled via the construction of a reduced phase space. Typically such reduced spaces provide us with a formalism for representing both instantaneous states and evolution uniquely and for this reason can be justifiably afforded the status of fun- damental dynamical arena - the otiose structure having been eliminated from the original phase space. Essential to the application of symplectic reduction (...)
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  20.  65
    Quantization as a Guide to Ontic Structure.K. P. Y. Thebault - 2016 - British Journal for the Philosophy of Science 67 (1):axu023.
    The ontic structural realist stance is motivated by a desire to do philosophical justice to the success of science, whilst withstanding the metaphysical undermining generated by the various species of ontological underdetermination. We are, however, as yet in want of general principles to provide a scaffold for the explicit construction of structural ontologies. Here we will attempt to bridge this gap by utilizing the formal procedure of quantization as a guide to ontic structure of modern physical theory. The example of (...)
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  21.  23
    Inclusion of Adolescent Women in Microbicide Trials: A Public Health Imperative!S. Pomfret, Q. A. Karim & S. R. Benatar - 2009 - Public Health Ethics 3 (1):39-50.
    Conventional and well-established guidelines for the ethical conduct of clinical research are necessary but not sufficient for addressing research dilemmas related to public health research. There is a particular need for a public health ethics framework when, in the face of an epidemic, research is urgently needed to promote the common good. While there is limited experience in the use of a public health ethics framework, the value and potential of such an approach is increasingly being appreciated. Here we use (...)
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  22.  84
    Book Review: Visual Faith: Art, Theology, and Worship in Dialogue. [REVIEW]Ana Karim - forthcoming - Interpretation 56 (4):450-450.
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  23.  35
    $Lambdamu$-Calculus and Bohm's Theorem.Rene David & Walter Py - 2001 - Journal of Symbolic Logic 66 (1):407-413.
    The $\lambda\mu$-calculus is an extension of the $\lambda$-calculus that has been introduced by M Parigot to give an algorithmic content to classical proofs. We show that Bohm's theorem fails in this calculus.
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  24.  14
    Confirmation Via Analogue Simulation: What Dumb Holes Could Tell Us About Gravity.R. Dardashti, K. P. Y. Thebault & E. Winsberg - 2015 - British Journal for the Philosophy of Science:axv010.
    In this article we argue for the existence of ‘analogue simulation’ as a novel form of scientific inference with the potential to be confirmatory. This notion is distinct from the modes of analogical reasoning detailed in the literature, and draws inspiration from fluid dynamical ‘dumb hole’ analogues to gravitational black holes. For that case, which is considered in detail, we defend the claim that the phenomena of gravitational Hawking radiation could be confirmed in the case that its counterpart is detected (...)
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  25.  14
    -Calculus and Böhm's Theorem.René David & Walter Py - 2001 - Journal of Symbolic Logic 66 (1):407-413.
    The λμ-calculus is an extension of the λ-calculus that has been introduced by M Parigot to give an algorithmic content to classical proofs. We show that Bohm's theorem fails in this calculus.
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  26.  6
    Nutritional Status and Age at Secondary Sterility in Rural Bangladesh.Abdul Karim, Akma Chowdhury & M. Kabir - 1985 - Journal of Biosocial Science 17 (4):497-502.
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  27.  6
    South Asian Regional Integration – Challenges and Prospects.Mohd Aminul Karim - 2014 - Japanese Journal of Political Science 15 (2):299-316.
    South Asian regional integration is seemingly confronting many challenges. The aim of this paper is to identify those challenges and also look for prospects. Although regional integration in South Asia has adopted a kind of institutionalization, it is yet to deliver any concrete outcomes. High-politics and the not-so-conducive regional economic structures hinder any effectual culmination. However, constructivism, as a theory, is given due credence in this paper when looking for future prospects. The paper highlights the issues, and attempts to offer (...)
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  28.  12
    Les Unités de Soins Intensifs Psychiatriques (USIP) : Expériences Françaises Et Internationales☆.Patrick le Bihan, David Esfandi, Claude Pagès, Sylvie Thébault & Jean-Benoît Naudet - 2009 - Médecine Et Droit 2009 (98-99):138-145.
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  29.  4
    Malnutrition and Child Mortality: Are Socioeconomic Factors Important?Abbas Bhuiya, Bogdan Wojtyniak & Rezaul Karim - 1989 - Journal of Biosocial Science 21 (3):357-364.
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  30.  5
    Cultural and Ethical Issues in the Treatment of Eating Disorders in Singapore.Jacinta Oa Tan, Syahirah A. Karim, Huei Yen Lee, Yen Li Goh & Ee Lian Lee - 2013 - Asian Bioethics Review 5 (1):40-55.
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  31.  3
    Notes Rapides Sur le Réel : La Parole Et les Silences d'Un Ami.Éric Thébault - 2002 - Multitudes 9 (2):230.
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  32.  2
    Suzette au pays du réel.Éric ThÉbault - 2002 - Multitudes 1 (1):232-238.
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  33.  2
    Lettre à Multitudes à propos du débat sur l'humanitaire.Éric ThÉbault - 2001 - Multitudes 2 (2):248-253.
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  34. A Descriptive Catalogue of Bengali Manuscripts.E. B., Munshi Abdul Karim, Ahmad Sharif & Syed Sajjad Husain - 1961 - Journal of the American Oriental Society 81 (4):461.
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  35. Social History of the Muslims in Bengal.E. B. & Abdul Karim - 1961 - Journal of the American Oriental Society 81 (4):462.
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  36. Murshid Quli Khan and His Times.Edward Churchill & Abdul Karim - 1965 - Journal of the American Oriental Society 85 (2):274.
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  37. L'incapacité Totale de Travail En Matière Pénale : Pour Une Approche Médico-...Légale.F. Doriat, P. Peton, H. Coudane, B. Py & F. Fourment - 2004 - Médecine et Droit 2004 (64):27-30.
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  38. Islam: Philosophy of Life and Economic Principles.Abdul Karim - 2004 - Sharid Printing Service.
     
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  39. Membangun Ilmu Dengan Paradigma Islam.M. Nazir Karim - 2010 - In Azyumardi Azra, Nanat Fatah Natsir & Hendriyanto Attan (eds.), Strategi Pendidikan: Upaya Memahami Wahyu Dan Ilmu. Pustaka Pelajar.
     
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  40. Neuronal Correlates of Voluntary Facial Movements.Martin Krippl, Ahmed A. Karim & André Brechmann - 2015 - Frontiers in Human Neuroscience 9.
  41.  44
    On Violence: A Reader.Bruce B. Lawrence & Aisha Karim (eds.) - 2007 - Duke University Press.
    "This volume provides a long-needed anthology of major writings related to the subject of violence.
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  42. Enjeux Juridique de la date de la mort figurant dans un acte de décès.Bruno Py - 2001 - Médecine et Droit 2001 (46):23-28.
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  43. Expert : Un Métier, Une Fonction, Une Adulation.Bruno Py - 2013 - Médecine et Droit 2013 (120):53-56.
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  44. La Bibliothèque Victor Cousin À la Sorbonne.A. Py - 1991 - Corpus 18:197-198.
     
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  45. L’Expertise de Santé : Mission Médicale, Juridique Ou Prédictive?Bruno Py - 2008 - Philosophia Scientae 12:129-140.
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  46. Quelques Méthodes d'Intelligence Artificielle Pour la Modélisation de L'Élève. STE, Vol 5-2.D. Py - forthcoming - Hermes.
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  47. Responsabilité Pénale de L'Échographe.Bruno Py - 2001 - Médecine et Droit 2001 (51):9-14.
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  48.  98
    Time Remains.Gryb Sean & P. Y. Thébault Karim - 2016 - British Journal for the Philosophy of Science 67 (3):663-705.
    On one popular view, the general covariance of gravity implies that change is relational in a strong sense, such that all it is for a physical degree of freedom to change is for it to vary with regard to a second physical degree of freedom. At a quantum level, this view of change as relative variation leads to a fundamentally timeless formalism for quantum gravity. Here, we will show how one may avoid this acute ‘problem of time’. Under our view, (...)
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  49.  10
    Quantization as a Guide to Ontic Structure.P. Y. Thébault Karim - 2016 - British Journal for the Philosophy of Science 67 (1):89-114.
    The ontic structural realist stance is motivated by a desire to do philosophical justice to the success of science, whilst withstanding the metaphysical undermining generated by the various species of ontological underdetermination. We are, however, as yet in want of general principles to provide a scaffold for the explicit construction of structural ontologies. Here we will attempt to bridge this gap by utilizing the formal procedure of quantization as a guide to ontic structure of modern physical theory. The example of (...)
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  50.  4
    Confirmation Via Analogue Simulation: What Dumb Holes Could Tell Us About Gravity.Radin Dardashti, Karim P. Y. Thébault & Eric Winsberg - 2015 - British Journal for the Philosophy of Science:axv010.
    In this article we argue for the existence of ‘analogue simulation’ as a novel form of scientific inference with the potential to be confirmatory. This notion is distinct from the modes of analogical reasoning detailed in the literature, and draws inspiration from fluid dynamical ‘dumb hole’ analogues to gravitational black holes. For that case, which is considered in detail, we defend the claim that the phenomena of gravitational Hawking radiation could be confirmed in the case that its counterpart is detected (...)
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