Search results for 'Uncertainty principle' (try it on Scholar)

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  1. Jean E. Burns (2012). The Action of Consciousness and the Uncertainty Principle. Journal of Nonlocality 1 (1).
    The term action of consciousness is used to refer to an influence, such as psychokinesis or free will, that produces an effect on matter that is correlated to mental intention, but not completely determined by physical conditions. Such an action could not conserve energy. But in that case, one wonders why, when highly accurate measurements are done, occasions of non-conserved energy (generated perhaps by unconscious PK) are not detected. A possible explanation is that actions of consciousness take place within the (...)
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  2. Maurice A. De Gosson (2009). The Symplectic Camel and the Uncertainty Principle: The Tip of an Iceberg? [REVIEW] Foundations of Physics 39 (2):194-214.
    We show that the strong form of Heisenberg’s inequalities due to Robertson and Schrödinger can be formally derived using only classical considerations. This is achieved using a statistical tool known as the “minimum volume ellipsoid” together with the notion of symplectic capacity, which we view as a topological measure of uncertainty invariant under Hamiltonian dynamics. This invariant provides a right measurement tool to define what “quantum scale” is. We take the opportunity to discuss the principle of the symplectic (...)
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  3.  56
    John Lemons, Kristin Shrader-Frechette & Carl Cranor (1997). The Precautionary Principle: Scientific Uncertainty and Type I and Type II Errors. [REVIEW] Foundations of Science 2 (2):207-236.
    We provide examples of the extent and nature of environmental and human health problems and show why in the United States prevailing scientific and legal burden of proof requirements usually cannot be met because of the pervasiveness of scientific uncertainty. We also provide examples of how may assumptions, judgments, evaluations, and inferences in scientific methods are value-laden and that when this is not recognized results of studies will appear to be more factual and value-neutral than warranted. Further, we show (...)
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  4.  34
    Anne Ingeborg Myhr & Terje Traavik (2002). The Precautionary Principle: Scientific Uncertainty and Omitted Research in the Context of GMO Use and Release. [REVIEW] Journal of Agricultural and Environmental Ethics 15 (1):73-86.
    Commercialization of genetically modified organisms (GMOs) have sparked profound controversies concerning adequate approaches to risk regulation. Scientific uncertainty and ambiguity, omitted research areas, and lack of basic knowledge crucial to risk assessmentshave become apparent. The objective of this article is to discuss the policy and practical implementation of the Precautionary Principle. A major conclusion is that the void in scientific understanding concerning risks posed by secondary effects and the complexity ofcause-effect relations warrant further research. Initiatives to approach the (...)
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  5. Glenn Statile (2004). The Uncertainty Principle and the Problem of God. Proceedings of the American Catholic Philosophical Association 78:107-117.
    This paper considers the relationship between quantum uncertainty and the problem of God. Among the issues considered are the existence and essence ofGod, divine action, human freedom, and personal identity. In recent discussions concerning the relative merits of science and religion, thinkers like Ian Barbourand John Haught have suggested several such credible, albeit tentative, connections between the two on the basis of the epistemological limit imposed upon human knowledge by the Heisenberg Uncertainty Principle.
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  6. Paul Busch, Teiko Heinonen & Pekka Lahti, Heisenberg's Uncertainty Principle.
    Heisenberg's uncertainty principle is usually taken to express a limitation of operational possibilities imposed by quantum mechanics. Here we demonstrate that the full content of this principle also includes its positive role as a condition ensuring that mutually exclusive experimental options can be reconciled if an appropriate trade-off is accepted. The uncertainty principle is shown to appear in three manifestations, in the form of uncertainty relations: for the widths of the position and momentum distributions (...)
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  7.  2
    V. M. Tkachuk (forthcoming). Galilean and Lorentz Transformations in a Space with Generalized Uncertainty Principle. Foundations of Physics:1-14.
    We consider a space with Generalized Uncertainty Principle which can be obtained in the frame of the deformed commutation relations. In the space with GUP we have found transformations relating coordinates and times of moving and rest frames of reference in the first order over the parameter of deformation. In the non-relativistic case we find the deformed Galilean transformation which is rotation in Euclidian space–time. This transformation is similar to the Lorentz one but written for Euclidean space–time where (...)
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  8.  25
    J. B. M. Uffink & Jan Hilgevoord (1985). Uncertainty Principle and Uncertainty Relations. Foundations of Physics 15 (9):925-944.
    It is generally believed that the uncertainty relation Δq Δp≥1/2ħ, where Δq and Δp are standard deviations, is the precise mathematical expression of the uncertainty principle for position and momentum in quantum mechanics. We show that actually it is not possible to derive from this relation two central claims of the uncertainty principle, namely, the impossibility of an arbitrarily sharp specification of both position and momentum (as in the single-slit diffraction experiment), and the impossibility of (...)
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  9.  38
    Michael B. Mensky (1992). Continuous Quantum Measurements and the Action Uncertainty Principle. Foundations of Physics 22 (9):1173-1193.
    The path-integral approach to quantum theory of continuous measurements has been developed in preceding works of the author. According to this approach the measurement amplitude determining probabilities of different outputs of the measurement can be evaluated in the form of a restricted path integral (a path integral “in finite limits”). With the help of the measurement amplitude, maximum deviation of measurement outputs from the classical one can be easily determined. The aim of the present paper is to express this variance (...)
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  10.  26
    Yoon-Ho Kim & Yanhua Shih (1999). Experimental Realization of Popper's Experiment: Violation of the Uncertainty Principle? [REVIEW] Foundations of Physics 29 (12):1849-1861.
    An entangled pair of photons (1 and 2) are emitted in opposite directions. A narrow slit is placed in the path of photon 1 to provide the precise knowledge of its position on the y-axis and this also determines the precise y-position of its twin, photon 2, due to quantum entanglement. Is photon 2 going to experience a greater uncertainty in momentum, that is, a greater Δpy because of the precise knowledge of its position y? The experimental data show (...)
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  11.  54
    Peter Gibbins (1981). A Note on Quantum Logic and the Uncertainty Principle. Philosophy of Science 48 (1):122-126.
    It is shown that the uncertainty principle has nothing directly to do with the non-localisability of position and momentum for an individual system on the quantum logical view. The product Δ x· Δ p for localisation of the ranges of position and momentum of an individual system→ ∞ , while the quantities Δ X and Δ P in the uncertainty principle $\Delta X\cdot \Delta P\geq \hslash /2$ , must be given a statistical interpretation on the quantum (...)
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  12.  17
    E. E. Fitchard (1979). Proposed Experimental Test of Wave Packet Reduction and the Uncertainty Principle. Foundations of Physics 9 (7-8):525-535.
    A practical experiment using coincidence techniques is suggested to test the validity of the following concepts:(1) wave packet reduction and(2) the measurement-uncertainty principle for position and momentum. The suggested experiment uses the time-of-flight method to determine an electron's momentum and a coincident photon, emitted from a system excited by the electron, to determine its initial position. It is shown that this method does constitute a simultaneous measurement of position and momentum for a single system. Also, it is pointed (...)
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  13. Lyn Frazier (1995). The Uncertainty Principle: A Reply to Kempen. Cognition 55 (2):223-226.
    Responds to comments by G. Kempen (see record 1996-00289-001) regarding L. Frazier's (see record 1995-31821-001) comments regarding G. Kempen's (see record 1995-31826-001) comments on Frazier et al's (see record 1994-32229-001) article on processing discontinuous words. There are serious problems with Kempen's account of the data of Frazier et al. These problems involve the principle of uncertainty invoked by Kempen. It is unclear that all control items in the original Frazier et al study were open to a complex verb (...)
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  14.  35
    George Soros (2013). Fallibility, Reflexivity and the Human Uncertainty Principle. Journal of Economic Methodology 20 (4):309-329.
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  15.  31
    Carl F. Cranor (2001). Learning From the Law to Address Uncertainty in the Precautionary Principle. Science and Engineering Ethics 7 (3):313-326.
    Environmentalists have advocated the Precautionary Principle (PP) to help guide public and private decisions about the environment. By contrast, industry and its spokesmen have opposed this. There is not one principle, but many that have been recommended for this purpose. Despite the attractiveness of a core idea in all versions of the principle—that decision-makers should take some precautionary steps to ensure that threats of serious and irreversible damage to the environment and public health do not materialize into (...)
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  16.  33
    Wayne E. Tefft (1973). The Relevance of Time-Delayed Coincidence Mössbauer Experiments for the Interpretation of the Uncertainty Principle. Foundations of Physics 3 (2):255-263.
    Time-delayed coincidence Mössbauer experiments, in which the spread in energy may be either greater or less than the natural linewidth, are discussed. This discussion leads to the conclusion that in the uncertainty relation ΔE Δt ≥ $\begin{array}{*{20}c} / \\ h \\ \end{array} /2$ , Δt should be interpreted as the duration time of the measurement and not as the lifetime of the state. Further analysis shows that confinement of photons to the region of space between emitter and absorber should (...)
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  17.  6
    John S. Stamm (1985). The Uncertainty Principle in Psychology. Behavioral and Brain Sciences 8 (4):553.
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  18. Jan Hilgevoord & Jos Uffink, The Uncertainty Principle.
    Quantum mechanics is generally regarded as the physical theory that is our best candidate for a fundamental and universal description of the physical world. The conceptual framework employed by this theory differs drastically from that of classical physics. Indeed, the transition from classical to quantum physics marks a genuine revolution in our understanding of the physical world.
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  19. P. T. Landsberg (1947). The Uncertainty Principle as a Problem in Philosophy. Mind 56 (223):250-256.
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  20.  25
    Charles Weijer, Stanley H. Shapiro & Kathleen Cranley Glass, Clinical Equipoise and Not the Uncertainty Principle Is the Moral Underpinning of the Randomised Controlled Trial.
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  21.  15
    Melinda Bonnie Fagan (2013). The Stem Cell Uncertainty Principle. Philosophy of Science 80 (5):945-957.
    Stem cells are defined as having capacities for both self-renewal and differentiation. Many different entities satisfy this working definition. I show that this general stem cell concept is relative to a cell lineage, temporal duration, and characters of interest. Experiments specify values for these variables. So claims about stem cells must be understood in terms of experimental methods used to identify them. Furthermore, the stem cell concept imposes evidential constraints on interpretation of experimental results. From these constraints, it follows that (...)
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  22.  47
    Rafael Sorkin (1979). On the Failure of the Time-Energy Uncertainty Principle. Foundations of Physics 9 (1-2):123-128.
    We establish, for the quantum system made up of a single free particle, the formula ΔE Δt≳(v/c) ħ, where ΔE is the precision to whichE can be ascertained in time Δt. The measurement can be carried out with zero disturbance inE itself.
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  23.  77
    P. T. Landsberg (1947). Discussion: The Uncertainty Principle as a Problem in Philosophy. Mind 56 (223):250-256.
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  24.  47
    H. Margenau (1931). The Uncertainty Principle and Free Will. Science.
  25.  6
    Jean Baudrillard (1982). Fatality or Reversible Imminence: Beyond the Uncertainty Principle. Social Research 49.
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  26.  41
    J. H. Van Vleck (1941). Note on Liouville's Theorem and the Heisenberg Uncertainty Principle. Philosophy of Science 8 (2):275-279.
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  27.  25
    Antonio Moreno (1976). The Heisenberg Uncertainty Principle and Free Will. Proceedings of the American Catholic Philosophical Association 50:14-23.
  28.  11
    Michael Jerome Carella (1972). Classical Dualism and the Uncertainty Principle. Modern Schoolman 49 (2):125-134.
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  29.  7
    Domingo Castelo Joaquin (1987). The Fundamental Uncertainty Principle and the Principle of Non-Additive Emotional States. Theory and Decision 22 (1):49-69.
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  30.  9
    P. Marquardt & G. Galeczki (1994). The Uncertainty Principle Revisited. Apeiron 20:17.
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  31.  29
    Christopher F. Mooney (1993). Theology and the Heisenberg Uncertainty Principle: I. Heythrop Journal 34 (3):247–273.
  32.  25
    Max Jammer (1982). A Note on Peter Gibbins' "a Note on Quantum Logic and the Uncertainty Principle". Philosophy of Science 49 (3):478-479.
  33.  6
    J. J. Halliwell (1995). Quantum-Mechanical Histories and the Uncertainty Principle. In M. Ferrero & A. van der Merwe (eds.), Fundamental Problems in Quantum Physics. 73--113.
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  34.  18
    Christopher F. Mooney (1993). Theology and the Heisenberg Uncertainty Principle: II. Heythrop Journal 34 (4):373–386.
  35.  8
    William Demopoulos (1979). Book Review:The Uncertainty Principle and Foundations of Quantum Mechanics: A Fifty Years' Survey W. Price, S. Chissick. [REVIEW] Philosophy of Science 46 (2):336-.
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  36.  8
    J. H. Van Vleck (1941). Note on Liouville's Theorem and the Heisenberg Uncertainty Principle. Philosophy of Science 8 (2):275 - 279.
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  37.  6
    J. H. Vlecvank (1941). Note on Liouville's Theorem and the Heisenberg Uncertainty Principle. Philosophy of Science 8 (2):275-.
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  38. Linda Wessels (1978). The Uncertainty Principle and Foundations of Quantum Mechanics. A Fifty Years' Survey by William C. Price; Seymour S. Chissick. [REVIEW] Isis: A Journal of the History of Science 69:316-317.
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  39. Linda Wessels (1978). The Uncertainty Principle and Foundations of Quantum Mechanics. A Fifty Years' SurveyWilliam C. Price Seymour S. Chissick. [REVIEW] Isis 69 (2):316-317.
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  40.  28
    Carlos Castro (2000). The String Uncertainty Relations Follow From the New Relativity Principle. Foundations of Physics 30 (8):1301-1316.
    Stringy corrections to the ordinary Heisenberg uncertainty relations have been known for some time. However, a proper understanding of the underlying new physical principle modifying the ordinary Heisenberg uncertainty relations has not yet emerged. The author has recently proposed a new scale relativity theory as a physical foundation of string and M theories. In this work the stringy uncertainty relations, and corrections thereof, are rigorously derived from this new relativity principle without any ad-hoc assumptions. The (...)
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  41.  22
    Daniel Steel (2011). Extrapolation, Uncertainty Factors, and the Precautionary Principle. Studies in History and Philosophy of Science Part C 42 (3):356-364.
    This essay examines the relationship between the precautionary principle and uncertainty factors used by toxicologists to estimate acceptable exposure levels for toxic chemicals from animal experiments. It shows that the adoption of uncertainty factors in the United States in the 1950s can be understood by reference to the precautionary principle, but not by cost-benefit analysis because of a lack of relevant quantitative data at that time. In addition, it argues that uncertainty factors continue to be (...)
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  42. Andrew Sepielli (2013). Moral Uncertainty and the Principle of Equity Among Moral Theories1. Philosophy and Phenomenological Research 86 (3):580-589.
  43.  36
    Masaki Ichinose (2012). Uncertainty and the Precautionary Principle Concerning Problems About Radiation Exposure. In Hitoshi Ieda Naesun Park (ed.), Vulnerability and Toughness in Urban Systems. 167.
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  44. Binod Kumar Agarwala (1986). In Defence of the Use of Maximin Principle of Choice Under Uncertainty in Rawls' Original Position. Indian Philosophical Quarterly 8 (2):157-176.
     
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  45.  1
    Matthias Kaiser (2004). Uncertainty and Precaution 2: The Precautionary Principle and its Relevance to Science. Global Bioethics 17 (1):81-92.
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  46.  5
    D. Brown (1933). The Principle of Uncertainty. Australasian Journal of Philosophy 11 (2):134 – 136.
  47. D. Brown (1933). The Principle of Uncertainty. Australasian Journal of Psychology and Philosophy 11 (2):134-136.
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  48. Daniel Steel (2011). Extrapolation, Uncertainty Factors, and the Precautionary Principle. Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 42 (3):356-364.
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  49. Claudia Som, Lorenz M. Hilty & Andreas R. Köhler (2009). The Precautionary Principle as a Framework for a Sustainable Information Society. Journal of Business Ethics 85 (3):493 - 505.
    The precautionary principle (PP) aims to anticipate and minimize potentially serious or irreversible risks under conditions of scientific uncertainty. Thus it preserves the potential for future developments. It has been incorporated into many international treaties and pieces of national legislation for environmental protection and sustainable development. In this article, we outline an interpretation of the PP as a framework of orientation for a sustainable information society. Since the risks induced by future information and communication technologies (ICT) are social (...)
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  50.  3
    Karim Bschir (forthcoming). Risk, Uncertainty and Precaution in Science: The Threshold of the Toxicological Concern Approach in Food Toxicology. Science and Engineering Ethics:1-20.
    Environmental risk assessment is often affected by severe uncertainty. The frequently invoked precautionary principle helps to guide risk assessment and decision-making in the face of scientific uncertainty. In many contexts, however, uncertainties play a role not only in the application of scientific models but also in their development. Building on recent literature in the philosophy of science, this paper argues that precaution should be exercised at the stage when tools for risk assessment are developed as well as (...)
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