Results for 'CHSH inequalities'

978 found
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  1. CHSH Inequality: Quantum Probabilities as Classical Conditional Probabilities.Andrei Khrennikov - 2015 - Foundations of Physics 45 (7):711-725.
    In this note we demonstrate that the results of observations in the EPR–Bohm–Bell experiment can be described within the classical probabilistic framework. However, the “quantum probabilities” have to be interpreted as conditional probabilities, where conditioning is with respect to fixed experimental settings. Our approach is based on the complete account of randomness involved in the experiment. The crucial point is that randomness of selections of experimental settings has to be taken into account within one consistent framework covering all events related (...)
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  2.  68
    On Selective Influences, Marginal Selectivity, and Bell/CHSH Inequalities.Ehtibar N. Dzhafarov & Janne V. Kujala - 2014 - Topics in Cognitive Science 6 (1):121-128.
    The Bell/CHSH inequalities of quantum physics are identical with the inequalities derived in mathematical psychology for the problem of selective influences in cases involving two binary experimental factors and two binary random variables recorded in response to them. The following points are made regarding cognitive science applications: (1) compliance of data with these inequalities is informative only if the data satisfy the requirement known as marginal selectivity; (2) both violations of marginal selectivity and violations of the (...)
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  3.  28
    On the CHSH Form of Bell’s Inequalities.Justo Pastor Lambare - 2017 - Foundations of Physics 47 (3):321-326.
    A common mistake present in the derivation of the usually known as the CHSH form of Bell’s inequalities is pointed out. References and comments to the correct approach are given. This error does not alter the final result and only affects the logical consistency of the derivation, but since it seems to be a widespread misconception regarding the roll and interpretation of the of use of hidden variables in Bell’s theorem it is considered to be of general interest.
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  4.  21
    The CHSH Bell Inequality: A Critical Look at Its Mathematics and Some Consequences for Physical Chemistry.Han Geurdes - 2021 - Russian Journal of Physical Chemistry B 15:S68-S80.
    In the paper it is demonstrated that Bell’s theorem is an unprovable theorem. The unprovable characteristic has, on the chemical side, repercussions for e.g. spin chemistry and the related magneto-reception studies. We claim that the unprovability of this basic mathematics cannot be ignored by the physics and chemical research community. The demonstrated mathematical multivaluedness could be an overlooked aspect of nature.
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  5. CHSH and local causlaity.Han Geurdes - 2010 - Adv Studies Theoretical Physics 4 (20):945.
    Mathematics equivalent to Bell's derivation of the inequalities, also allows a local hidden variables explanation for the correlation between distant measurements.
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  6.  94
    The bell inequalities.Peter Rastall - 1983 - Foundations of Physics 13 (6):555-570.
    It is shown that the Bell inequalities are conditions that must be satisfied by the probability functions of certain three-variable systems if they are to be expressible in terms of a single, nonnegative function. The generalized Bell inequalities, or CHSH inequalities, play a similar role for four-variable systems. The physical significance of the results is discussed.
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  7. New bell inequalities for the singlet state: Going beyond the grothendieck bound.Itamar Pitowsky - unknown
    Contemporary versions of Bell’s argument against local hidden variable (LHV) theories are based on the Clauser Horne Shimony and Holt (CHSH) inequality, and various attempts to generalize it. The amount of violation of these inequalities cannot exceed the bound set by the Grothendieck constants. However, if we go back to the original derivation by Bell, and use the perfect anticorrelation embodied in the singlet spin state, we can go beyond these bounds. In this paper we derive two-particle Bell (...)
     
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  8.  87
    Bell Inequalities, Experimental Protocols and Contextuality.Marian Kupczynski - 2015 - Foundations of Physics 45 (7):735-753.
    In this paper we give additional arguments in favor of the point of view that the violation of Bell, CHSH and CH inequalities is not due to a mysterious non locality of nature. We concentrate on an intimate relation between a protocol of a random experiment and a probabilistic model which is used to describe it. We discuss in a simple way differences between attributive joint probability distributions and generalized joint probability distributions of outcomes from distant experiments which (...)
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  9. A Rigorous Analysis of the Clauser–Horne–Shimony–Holt Inequality Experiment When Trials Need Not be Independent.Peter Bierhorst - 2014 - Foundations of Physics 44 (7):736-761.
    The Clauser–Horne–Shimony–Holt (CHSH) inequality is a constraint that local hidden variable theories must obey. Quantum Mechanics predicts a violation of this inequality in certain experimental settings. Treatments of this subject frequently make simplifying assumptions about the probability spaces available to a local hidden variable theory, such as assuming the state of the system is a discrete or absolutely continuous random variable, or assuming that repeated experimental trials are independent and identically distributed. In this paper, we do two things: first, (...)
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  10. No-Forcing and No-Matching Theorems for Classical Probability Applied to Quantum Mechanics.Ehtibar N. Dzhafarov & Janne V. Kujala - 2014 - Foundations of Physics 44 (3):248-265.
    Correlations of spins in a system of entangled particles are inconsistent with Kolmogorov’s probability theory (KPT), provided the system is assumed to be non-contextual. In the Alice–Bob EPR paradigm, non-contextuality means that the identity of Alice’s spin (i.e., the probability space on which it is defined as a random variable) is determined only by the axis $\alpha _{i}$ chosen by Alice, irrespective of Bob’s axis $\beta _{j}$ (and vice versa). Here, we study contextual KPT models, with two properties: (1) Alice’s (...)
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  11.  38
    Contextuality in Three Types of Quantum-Mechanical Systems.Ehtibar N. Dzhafarov, Janne V. Kujala & Jan-Åke Larsson - 2015 - Foundations of Physics 45 (7):762-782.
    We present a formal theory of contextuality for a set of random variables grouped into different subsets corresponding to different, mutually incompatible conditions. Within each context the random variables are jointly distributed, but across different contexts they are stochastically unrelated. The theory of contextuality is based on the analysis of the extent to which some of these random variables can be viewed as preserving their identity across different contexts when one considers all possible joint distributions imposed on the entire set (...)
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  12.  32
    Proof of a Conjecture on Contextuality in Cyclic Systems with Binary Variables.Janne V. Kujala & Ehtibar N. Dzhafarov - 2016 - Foundations of Physics 46 (3):282-299.
    We present a proof for a conjecture previously formulated by Dzhafarov et al.. The conjecture specifies a measure for the degree of contextuality and a criterion for contextuality in a broad class of quantum systems. This class includes Leggett–Garg, EPR/Bell, and Klyachko–Can–Binicioglu–Shumovsky type systems as special cases. In a system of this class certain physical properties \ are measured in pairs \ \); every property enters in precisely two such pairs; and each measurement outcome is a binary random variable. Denoting (...)
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  13. Reconsidering No-Go Theorems from a Practical Perspective.Michael E. Cuffaro - 2018 - British Journal for the Philosophy of Science 69 (3):633-655.
    I argue that our judgements regarding the locally causal models that are compatible with a given constraint implicitly depend, in part, on the context of inquiry. It follows from this that certain quantum no-go theorems, which are particularly striking in the traditional foundational context, have no force when the context switches to a discussion of the physical systems we are capable of building with the aim of classically reproducing quantum statistics. I close with a general discussion of the possible implications (...)
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  14. Bell's Theorem Begs the Question.Joy Christian - manuscript
    I demonstrate that Bell's theorem is based on circular reasoning and thus a fundamentally flawed argument. It unjustifiably assumes the additivity of expectation values for dispersion-free states of contextual hidden variable theories for non-commuting observables involved in Bell-test experiments, which is tautologous to assuming the bounds of ±2 on the Bell-CHSH sum of expectation values. Its premises thus assume in a different guise the bounds of ±2 it sets out to prove. Once this oversight is ameliorated from Bell's argument (...)
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  15.  49
    Quantum Entanglement in Corpuses of Documents.Lester Beltran & Suzette Geriente - 2019 - Foundations of Science 24 (2):227-246.
    We show that data collected from corpuses of documents violate the Clauser-Horne-Shimony-Holt version of Bell’s inequality and therefore indicate the presence of quantum entanglement in their structure. We obtain this result by considering two concepts and their combination and coincidence operations consisting of searches of co-occurrences of exemplars of these concepts in specific corpuses of documents. Measuring the frequencies of these co-occurrences and calculating the relative frequencies as approximate probabilities entering in the CHSH inequality, we obtain manifest violations of (...)
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  16.  97
    Spin and Wind Directions II: A Bell State Quantum Model.Diederik Aerts, Jonito Aerts Arguëlles, Lester Beltran, Suzette Geriente, Massimiliano Sassoli de Bianchi, Sandro Sozzo & Tomas Veloz - 2018 - Foundations of Science 23 (2):337-365.
    In the first half of this two-part article, we analyzed a cognitive psychology experiment where participants were asked to select pairs of directions that they considered to be the best example of Two Different Wind Directions, and showed that the data violate the CHSH version of Bell’s inequality, with same magnitude as in typical Bell-test experiments in physics. In this second part, we complete our analysis by presenting a symmetrized version of the experiment, still violating the CHSH inequality (...)
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  17.  23
    Quantum Arrangements.Gregg Jaeger & Anton Zeilinger - 2021 - Cham, Switzerland: Springer Nature.
    This book presents a collection of novel contributions and reviews by renowned researchers in the foundations of quantum physics, quantum optics, and neutron physics. It is published in honor of Michael Horne, whose exceptionally clear and groundbreaking work in the foundations of quantum mechanics and interferometry, both of photons and of neutrons, has provided penetrating insight into the implications of modern physics for our understanding of the physical world. He is perhaps best known for the Clauser-Horne-Shimony-Holt (CHSH) inequality. This (...)
  18.  30
    The Bell Experiment and the Limitations of Actors.Inge S. Helland - 2022 - Foundations of Physics 52 (3):1-22.
    The well known Bell experiment with two actors Alice and Bob is considered. First the simple deduction leading to the CHSH inequality under local realism is reviewed, and some arguments from the literature are recapitulated. Then I take up certain background themes before I enter a discussion of Alice’s analysis of the situation. An important point is that her mind is limited by the fact that her Hilbert space in this context is two-dimensional. General statements about a mind’s limitation (...)
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  19. (1 other version)Temporal Nonlocality from Indefinite Causal Orders.Laurie Letertre - forthcoming - The British Journal for the Philosophy of Science.
    A temporal counterpart to Bell nonlocality would intuitively refer to the presence of non-classical correlations between timelike-separated events. The hypothesis of temporal nonlocality has received recent support in the literature, and its existence would likely influence the future development of physical theories. This paper shows how Adlam's principle of temporal locality can be violated within a protocol involving indefinite causal orders. While the derivations of Leggett-Garg inequalities or the temporal CHSH inequality are said to involve problematic assumptions preventing (...)
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  20. On a Surprising Oversight by John S. Bell in the Proof of his Famous Theorem.Joy Christian - unknown
    Bell inequalities are usually derived by assuming locality and realism, and therefore violations of the Bell-CHSH inequality are usually taken to imply violations of either locality or realism, or both. But, after reviewing an oversight by Bell, in the Corollary below we derive the Bell-CHSH inequality by assuming only that Bob can measure along vectors b and b' simultaneously while Alice measures along either a or a', and likewise Alice can measure along vectors a and a' simultaneously (...)
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  21. Bell's Theorem And The Counterfactual Definition Of Locality.Osvaldo Pessoa Jr - 2010 - Manuscrito 33 (1):351-363.
    This paper proposes a solution to the problem of non-locality associated with Bell’s theorem, within the counterfactual approach to the problem. Our proposal is that a counterfactual definition of locality can be maintained, if a subsidiary hypothesis be rejected, “locality involving two counterfactuals”. This amounts to the acceptance of locality in the actual world, and a denial that locality is always valid in counterfactual worlds. This also introduces a metaphysical asymmetry between the factual and counterfactual worlds. This distinction is analogous (...)
     
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  22. Quantum nonlocality as an axiom.Sandu Popescu & Daniel Rohrlich - 1994 - Foundations of Physics 24 (3):379-385.
    In the conventional approach to quantum mechanics, indeterminism is an axiom and nonlocality is a theorem. We consider inverting the logical order, making nonlocality an axiom and indeterminism a theorem. Nonlocal “superquantum” correlations, preserving relativistic causality, can violate the CHSH inequality more strongly than any quantum correlations.
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  23.  15
    On the Representations of Bell’s Operators in Quantum Mechanics.S. P. Sorella - 2023 - Foundations of Physics 53 (3):1-12.
    We point out that, when the dimension of the Hilbert space is greater than two, Bell’s operators entering the Bell-CHSH inequality do exhibit inequivalent unitary matrix representations. Although the Bell-CHSH inequality turns out to be violated, the size of the violation is different for different representations, the maximum violation being given by Tsirelson’s bound. The feature relies on a pairing mechanism between the modes of the Hilbert space of the system.
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  24.  47
    Restoring Local Causality and Objective Reality to the Entangled Photons.Joy Christian - unknown
    Unlike our basic theories of space and time, quantum mechanics is not a locally causal theory. This well known fact was brought forth by Einstein, Podolsky, and Rosen in 1935. Today it is widely believed that any hopes of restoring local causality within a realistic theory have been undermined by Bell's theorem and its supporting experiments. By contrast, we provide a strictly local, deterministic, and realistic explanation for the correlations observed in two such supporting experiments performed at Orsay and Innsbruck. (...)
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  25.  63
    On the nonlocality of the quantum Channel in the standard teleportation protocol.Rob Clifton & Damian Pope - unknown
    By exhibiting a violation of a novel form of the Bell-CHSH inequality, \.{Z}ukowski has recently established that the quantum correlations exploited in the standard perfect teleportation protocol cannot be recovered by any local hidden variables model. Allowing the quantum channel state in the protocol to be given by any density operator of two spin-1/2 particles, we show that a violation of a generalized form of \.{Z}ukowski's teleportation inequality can only occur if the channel state, considered by itself, violates a (...)
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  26.  44
    Whither All the Scope and Generality of Bell's Theorem?Joy Christian - unknown
    In a recent preprint James Owen Weatherall has attempted a simple local-deterministic model for the EPR-Bohm correlation and speculated about why his model fails when my counterexample to Bell's theorem succeeds. Here I bring out the physical, mathematical, and conceptual reasons why his model fails. In particular, I demonstrate why no model based on a tensor representation of the rotation group SU can reproduce the EPR-Bohm correlation. I demonstrate this by calculating the correlation explicitly between measurement results A = +1 (...)
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  27. Three-Slit Experiments and Quantum Nonlocality.Gerd Niestegge - 2013 - Foundations of Physics 43 (6):805-812.
    An interesting link between two very different physical aspects of quantum mechanics is revealed; these are the absence of third-order interference and Tsirelson’s bound for the nonlocal correlations. Considering multiple-slit experiments—not only the traditional configuration with two slits, but also configurations with three and more slits—Sorkin detected that third-order (and higher-order) interference is not possible in quantum mechanics. The EPR experiments show that quantum mechanics involves nonlocal correlations which are demonstrated in a violation of the Bell or CHSH inequality, (...)
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  28.  21
    Bell’s Theorem and Einstein’s Worry about Quantum Mechanics.Han Geurdes - 2023 - Journal of Quantum Information Science 13:131-137.
    With the use of a local dependency on instrument setting parameters of the probability density of local hidden variables, it is demonstrated that a Kolmogorov formulation reproduces the quantum correlation. This is the novelty of the work. In a Bell experiment, one cannot distinguish between Bell’s formula and the here presented local Kolmogorov formula. With the presented formula, no CHSH can be obtained. Therefore, the famous CHSH inequality has no excluding power concerning local extra Einstein parameter models. This (...)
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  29.  42
    My Discussions of Quantum Foundations with John Stewart Bell.Marian Kupczynski - forthcoming - Foundations of Science:1-20.
    In 1976, I met John Bell several times in CERN and we talked about a possible violation of optical theorem, purity tests, EPR paradox, Bell’s inequalities and their violation. In this review, I resume our discussions, and explain how they were related to my earlier research. I also reproduce handwritten notes, which I gave to Bell during our first meeting and a handwritten letter he sent to me in 1982. We have never met again, but I have continued to (...)
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  30.  87
    A Toy Model for Quantum Mechanics.S. J. van Enk - 2007 - Foundations of Physics 37 (10):1447-1460.
    The toy model used by Spekkens (Phys. Rev. A 75, 032110, 2007) to argue in favor of an epistemic view of quantum mechanics is extended by generalizing his definition of pure states (i.e. states of maximal knowledge) and by associating measurements with all pure states. The new toy model does not allow signaling but, in contrast to the Spekkens model, does violate Bell-CHSH inequalities. Negative probabilities are found to arise naturally within the model, and can be used to (...)
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  31. On Leggett Theories: A Reply.Federico Laudisa - 2014 - Foundations of Physics 44 (3):296-304.
    In his 2013 Foundations of Physics paper Mathias Egg claims to show that my critical arguments toward the foundational significance of Leggett’s non-local theories are misguided. The main motivation is that my argument would connect too strongly the Leggett original motivation for introducing this new class of theories with the foundational significance of these theories per se. Egg basically aims to show that, although it can be conceded that the Leggett original motivation relies on a mistaken view of the original (...)
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  32. What’s Wrong with this Criticism.N. David Mermin - 2005 - Foundations of Physics 35 (12):2073-2077.
    One of the endearing traits of Asher Peres is that when somebody publishes something he knows to be wrong, he does not bother to refute it, even if the paper criticizes his own work. Life is too brief for such frivolity. As a small 70th birthday present I would like to answer one such recent attack. It’s not much of a present, since Asher will not read my paper. Why should he? He already knows this criticism is nonsense. But somebody (...)
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  33.  32
    On the Spin Projection Operator and the Probabilistic Meaning of the Bipartite Correlation Function.Ana María Cetto, Andrea Valdés-Hernández & Luis de la Peña - 2020 - Foundations of Physics 50 (1):27-39.
    Spin is a fundamental and distinctive property of the electron, having far-reaching implications. Yet its purely formal treatment often blurs the physical content and meaning of the spin operator and associated observables. In this work we propose to advance in disclosing the meaning behind the formalism, by first recalling some basic facts about the one-particle spin operator. Consistently informed by and in line with the quantum formalism, we then proceed to analyse in detail the spin projection operator correlation function \=\left\langle (...)
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  34.  33
    Spin and Wind Directions I: Identifying Entanglement in Nature and Cognition.Robrecht Vanderbeeken & Frederik Le Roy - 2018 - Foundations of Science 23 (2):323-335.
    We present a cognitive psychology experiment where participants were asked to select pairs of spatial directions that they considered to be the best example of Two different wind directions. Data are shown to violate the CHSH version of Bell’s inequality with the same magnitude as in typical Bell-test experiments with entangled spins. Wind directions thus appear to be conceptual entities connected through meaning, in human cognition, in a similar way as spins appear to be entangled in experiments conducted in (...)
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  35.  74
    Spin and Wind Directions I: Identifying Entanglement in Nature and Cognition.Diederik Aerts, Jonito Aerts Arguëlles, Lester Beltran, Suzette Geriente, Massimiliano Sassoli de Bianchi, Sandro Sozzo & Tomas Veloz - 2018 - Foundations of Science 23 (2):323-335.
    We present a cognitive psychology experiment where participants were asked to select pairs of spatial directions that they considered to be the best example of Two different wind directions. Data are shown to violate the CHSH version of Bell’s inequality with the same magnitude as in typical Bell-test experiments with entangled spins. Wind directions thus appear to be conceptual entities connected through meaning, in human cognition, in a similar way as spins appear to be entangled in experiments conducted in (...)
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  36. A probabilistic framework for analysing the compositionality of conceptual combinations.Peter Bruza, Kirsty Kitto, Brentyn Ramm & Laurianne Sitbon - 2015 - Journal of Mathematical Psychology 67:26-38.
    Conceptual combination performs a fundamental role in creating the broad range of compound phrases utilised in everyday language. This article provides a novel probabilistic framework for assessing whether the semantics of conceptual combinations are compositional, and so can be considered as a function of the semantics of the constituent concepts, or not. While the systematicity and productivity of language provide a strong argument in favor of assuming compositionality, this very assumption is still regularly questioned in both cognitive science and philosophy. (...)
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  37. Quantum Analogues of Hardy’s Nonlocality Paradox.Tobias Fritz - 2011 - Foundations of Physics 41 (9):1493-1501.
    Hardy’s nonlocality is a “nonlocality proof without inequalities”: it exemplifies that quantum correlations can be qualitatively stronger than classical correlations. This paper introduces variants of Hardy’s nonlocality in the CHSH scenario which are realized by the PR-box, but not by quantum correlations. Hence this new kind of Hardy-type nonlocality is a proof without inequalities showing that superquantum correlations can be qualitatively stronger than quantum correlations.
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  38. Sarah marchand and Daniel Wikler.Health Inequalities and - 2002 - In Julia Lai Po-Wah Tao, Cross-cultural perspectives on the (im) possibility of global bioethics. Boston: Kluwer Academic.
     
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  39. On this page.Regional Earnings Inequality in Great Britain - 2006 - Emergence: Complexity and Organization 46 (5).
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  40.  42
    A sociotechnical perspective for the future of AI: narratives, inequalities, and human control.Andreas Theodorou & Laura Sartori - 2022 - Ethics and Information Technology 24 (1):1-11.
    Different people have different perceptions about artificial intelligence (AI). It is extremely important to bring together all the alternative frames of thinking—from the various communities of developers, researchers, business leaders, policymakers, and citizens—to properly start acknowledging AI. This article highlights the ‘fruitful collaboration’ that sociology and AI could develop in both social and technical terms. We discuss how biases and unfairness are among the major challenges to be addressed in such a sociotechnical perspective. First, as intelligent machines reveal their nature (...)
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  41.  32
    Partial indeterminism is enough: A branching analysis of Bell-type inequalities.Tomasz Placek - 2002 - In Tomasz Placek & Jeremy Butterfield, Non-locality and Modality. Dordrecht and Boston: Kluwer Academic Publishers. pp. 317--342.
  42.  17
    (1 other version)Bell's Theorem without Inequalities.Daniel M. Greenberger, Michael A. Horne, Abner Shimony & Anton Zeilenger - 1990 - American Journal of Physics 58 (12):1131--1143.
  43. Separate- versus common-common-cause-type derivations of the Bell inequalities.Gábor Hofer-Szabó - 2008 - Synthese 163 (2):199-215.
    Standard derivations of the Bell inequalities assume a common-commoncause-system that is a common screener-off for all correlations and some additional assumptions concerning locality and no-conspiracy. In a recent paper Graßhoff et al., "The British Journal for the Philosophy of Science", 56, 663–680 ) Bell inequalities have been derived via separate common causes assuming perfect correlations between the events. In the paper it will be shown that the assumptions of this separate-common-cause-type derivation of the Bell inequalities in the (...)
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  44. Relational Egalitarianism and Emergent Social Inequalities.Dan Threet - 2021 - Res Publica 28 (1):49-67.
    This paper identifies a challenge for liberal relational egalitarians—namely, how to respond to the prospect of emergent inequalities of power, status, and influence arising unintentionally through the free exercise of fundamental individual liberties over time. I argue that these emergent social inequalities can be produced through patterns of nonmalicious choices, that they can in fact impede the full realization of relational equality, and that it is possible they cannot be eliminated entirely without abandoning fundamental liberal commitments to leave (...)
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  45.  83
    Critical Realism, Sociology and Health Inequalities: Social Class as a Generative Mechanism and its Media of Enactment.Graham Scambler - 2001 - Alethia 4 (1):35-42.
    (2001). Critical Realism, Sociology and Health Inequalities: Social Class as a Generative Mechanism and its Media of Enactment. Alethia: Vol. 4, No. 1, pp. 35-42.
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  46.  34
    A General Proof of Nonlocality without Inequalities for Bipartite States.GianCarlo Ghirardi & Luca Marinatto - 2009 - In Wayne C. Myrvold & Joy Christian, Quantum Reality, Relativistic Causality, and Closing the Epistemic Circle. Springer. pp. 95--104.
  47.  19
    Health Agency and Perfectionism: The Case of Perinatal Health Inequalities.Hafez Ismaili M’Hamdi & Inez de Beaufort - 2021 - Public Health Ethics 14 (2):168-179.
    Poor pregnancy outcomes and inequalities in these outcomes remain a major challenge, even in prosperous societies that have high-quality health care and public health policy in place. In this article, we propose that justice demands the improvement of what we call the ‘health agency’ of parents-to-be as part of a response to these poor outcomes. We take health agency to have three aspects: the capacity to form health-goals one has reason to value, the control one perceives to have over (...)
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  48.  18
    The subtle inequalities of copyright: Power without responsibility.Philip G. Altbach - 1992 - Logos 3 (3):144-148.
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  49.  35
    Evaluation Model and Approximate Solution to Inconsistent Max-Min Fuzzy Relation Inequalities in P2P File Sharing System.Xiao-Peng Yang - 2019 - Complexity 2019:1-11.
    In a supply chain system, the prices with which the suppliers supply its local commodity to the retailers should satisfy the requirements of the retailers and the consumers. The supply and demand scheme satisfying these requirements is reduced into fuzzy relation inequalities with min-product composition. Due to the difference between the min-product composition and the classical max-t-norm one, we first study the resolution of such min-product FRI system. For optimization management in the supply chain system, we further investigate a (...)
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  50.  33
    Boundary-work that Does Not Work: Social Inequalities and the Non-performativity of Scientific Boundary-work.Maria do Mar Pereira - 2019 - Science, Technology, and Human Values 44 (2):338-365.
    Although the STS literature on boundary-work recognizes that such work unfolds within a “terrain of uneven advantage” vis-à-vis gender, race, and other inequalities, reflection about that uneven advantage has been strikingly underdeveloped. This article calls for a retheorizing of boundary-work that engages more actively with feminist, critical race, and postcolonial scholarship and examines more systematically the relation between scientific boundary-work, broader structures of sociopolitical inequality, and boundary-workers’ positionality. To demonstrate the need for this retheorization, I analyze ethnographic and interview (...)
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