Results for 'measurement'

251 found
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  1. Old and New Problems in Philosophy of Measurement.Eran Tal - 2013 - Philosophy Compass 8 (12):1159-1173.
    The philosophy of measurement studies the conceptual, ontological, epistemic, and technological conditions that make measurement possible and reliable. A new wave of philosophical scholarship has emerged in the last decade that emphasizes the material and historical dimensions of measurement and the relationships between measurement and theoretical modeling. This essay surveys these developments and contrasts them with earlier work on the semantics of quantity terms and the representational character of measurement. The conclusions highlight four characteristics of (...)
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  2.  31
    Robust Biomarkers: Methodologically Tracking Causal Processes in Alzheimer’s Measurement.Vadim Keyser & Louis Sarry - 2020 - In Barbara Osimani & Adam La Caze (eds.), Uncertainty in Pharmacology. pp. 289-318.
    In biomedical measurement, biomarkers are used to achieve reliable prediction of, and useful causal information about patient outcomes while minimizing complexity of measurement, resources, and invasiveness. A biomarker is an assayable metric that discloses the status of a biological process of interest, be it normative, pathophysiological, or in response to intervention. The greatest utility from biomarkers comes from their ability to help clinicians (and researchers) make and evaluate clinical decisions. In this paper we discuss a specific methodological use (...)
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  3. Modeling Measurement: Error and Uncertainty.Alessandro Giordani & Luca Mari - 2014 - In Marcel Boumans, Giora Hon & Arthur Petersen (eds.), Error and Uncertainty in Scientific Practice. Pickering & Chatto. pp. 79-96.
    In the last few decades the role played by models and modeling activities has become a central topic in the scientific enterprise. In particular, it has been highlighted both that the development of models constitutes a crucial step for understanding the world and that the developed models operate as mediators between theories and the world. Such perspective is exploited here to cope with the issue as to whether error-based and uncertainty-based modeling of measurement are incompatible, and thus alternative with (...)
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  4.  39
    Measurement in Biology is Methodized by Theory.Maël Montévil - 2019 - Biology and Philosophy 34 (3):35.
    We characterize access to empirical objects in biology from a theoretical perspective. Unlike objects in current physical theories, biological objects are the result of a history and their variations continue to generate a history. This property is the starting point of our concept of measurement. We argue that biological measurement is relative to a natural history which is shared by the different objects subjected to the measurement and is more or less constrained by biologists. We call symmetrization (...)
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  5. A Conjecture Concerning Determinism, Reduction, and Measurement in Quantum Mechanics.Arthur Jabs - 2016 - Quantum Studies: Mathematics and Foundations 3 (4):279-292.
    Determinism is established in quantum mechanics by tracing the probabilities in the Born rules back to the absolute (overall) phase constants of the wave functions and recognizing these phase constants as pseudorandom numbers. The reduction process (collapse) is independent of measurement. It occurs when two wavepackets overlap in ordinary space and satisfy a certain criterion, which depends on the phase constants of both wavepackets. Reduction means contraction of the wavepackets to the place of overlap. The measurement apparatus fans (...)
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  6. Measurement Scales and Welfarist Social Choice.Michael Morreau & John A. Weymark - 2016 - Journal of Mathematical Psychology 75:127-136.
    The social welfare functional approach to social choice theory fails to distinguish a genuine change in individual well-beings from a merely representational change due to the use of different measurement scales. A generalization of the concept of a social welfare functional is introduced that explicitly takes account of the scales that are used to measure well-beings so as to distinguish between these two kinds of changes. This generalization of the standard theoretical framework results in a more satisfactory formulation of (...)
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  7.  86
    Comparativism and the Measurement of Partial Belief.Edward J. R. Elliott - manuscript
    Comparativism is the view that comparative beliefs (e.g., believing p to be more likely than q) are more fundamental than partial beliefs (e.g., believing p to some degree x), with the latter explicable as theoretical constructs designed to facilitate reasoning about patterns within systems of comparative beliefs that exist under special conditions. In this paper, I fi rst outline several varieties of comparativism, including two `Ramseyan' varieties which generalise the standard `probabilistic' approaches. I then provide a general critique that applies (...)
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  8. Protective Measurement and the Meaning of the Wave Function.Shan Gao - manuscript
    This article analyzes the implications of protective measurement for the meaning of the wave function. According to protective measurement, a charged quantum system has mass and charge density proportional to the modulus square of its wave function. It is shown that the mass and charge density is not real but effective, formed by the ergodic motion of a localized particle with the total mass and charge of the system. Moreover, it is argued that the ergodic motion is not (...)
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  9. Rescuing the Assertability of Measurement Reports.Michael Shaffer - 2019 - Acta Analytica 34 (1):39-51.
    It is wholly uncontroversial that measurements-or, more properly, propositions that are measurement reports-are often paradigmatically good cases of propositions that serve the function of evidence. In normal cases it is also obvious that stating such a report is an utterly pedestrian case of successful assertion. So, for example, there is nothing controversial about the following claims: (1) that a proposition to the effect that a particular thermometer reads 104C when properly used to determine the temperature of a particular patient (...)
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  10. A New Look at the Quantum Mechanical Problem of Measurement.Nicholas Maxwell - 1972 - American Journal of Physics 40:1431-5..
    According to orthodox quantum mechanics, state vectors change in two incompatible ways: "deterministically" in accordance with Schroedinger's time-dependent equation, and probabilistically if and only if a measurement is made. It is argued here that the problem of measurement arises because the precise mutually exclusive conditions for these two types of transitions to occur are not specified within orthodox quantum mechanics. Fundamentally, this is due to an inevitable ambiguity in the notion of "meawurement" itself. Hence, if the problem of (...)
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  11. Measurement Accuracy Realism.Paul Teller - manuscript
    This paper challenges “traditional measurement-accuracy realism”, according to which there are in nature quantities of which concrete systems have definite values. An accurate measurement outcome is one that is close to the value for the quantity measured. For a measurement of the temperature of some water to be accurate in this sense requires that there be this temperature. But there isn’t. Not because there are no quantities “out there in nature” but because the term ‘the temperature of (...)
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  12. Quantum Theory Without Measurement or State Reduction Problems.Alan Macdonald - manuscript
    There is a consistent and simple interpretation of the quantum theory of isolated systems. The interpretation suffers no measurement problem and provides a quantum explanation of state reduction, which is usually postulated. Quantum entanglement plays an essential role in the construction of the interpretation.
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  13. The Problem of Measurement - Real or Imaginary?Nicholas Maxwell - 1973 - American Journal of Physics 41:1022-5.
    It is argued that criticisms of Willian Band and James Park concerning the quantum mechanics measurement problem do not succeed.
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  14. Meinong on Magnitudes and Measurement.Ghislain Guigon - 2005 - Meinong Studies 1:255-296.
    This paper introduces the reader to Meinong's work on the metaphysics of magnitudes and measurement in his Über die Bedeutung des Weber'schen Gesetzes. According to Russell himself, who wrote a review of Meinong's work on Weber's law for Mind, Meinong's theory of magnitudes deeply influenced Russell's theory of quantities in the Principles of Mathematics. The first and longest part of the paper discusses Meinong's analysis of magnitudes. According to Meinong, we must distinguish between divisible and indivisible magnitudes. He argues (...)
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  15.  14
    A Model for the Solution of the Quantum Measurement Problem.Biswaranjan Dikshit - 2019 - Science and Philosophy 7 (2):59-70.
    The basic idea of quantum mechanics is that the property of any system can be in a state of superposition of various possibilities. This state of superposition is also known as wave function and it evolves linearly with time in a deterministic way in accordance with the Schrodinger equation. However, when a measurement is carried out on the system to determine the value of that property, the system instantaneously transforms to one of the eigen states and thus we get (...)
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  16. Measurement Independence, Parameter Independence and Non-Locality.Iñaki San Pedro - 2014 - European Journal for Philosophy of Science 4 (3):369-374.
    In a recent paper in this Journal San Pedro I formulated a conjecture relating Measurement Independence and Parameter Independence, in the context of common cause explanations of EPR correlations. My conjecture suggested that a violation of Measurement Independence would entail a violation of Parameter Independence as well. Leszek Wroński has shown that conjecture to be false. In this note, I review Wroński’s arguments and agree with him on the fate of the conjecture. I argue that what is interesting (...)
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  17. Entanglement, Joint Measurement, and State Reduction.Alan Macdonald - 2003 - International Journal of Theoretical Physics 42:943-953.
    Entanglement has been called the most important new feature of the quantum world. It is expressed in the quantum formalism by the joint measurement formula. We prove the formula for projection valued observables from a plausible assumption, which for spacelike separated measurements is an expression of relativistic causality. The state reduction formula is simply a way to express the joint measurement formula after one measurement has been made, and its result known.
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  18. Protective Measurement and the de Broglie-Bohm Theory.Shan Gao - manuscript
    We investigate the implications of protective measurement for de Broglie-Bohm theory, mainly focusing on the interpretation of the wave function. It has been argued that the de Broglie-Bohm theory gives the same predictions as quantum mechanics by means of quantum equilibrium hypothesis. However, this equivalence is based on the premise that the wave function, regarded as a Ψ-field, has no mass and charge density distributions. But this premise turns out to be wrong according to protective measurement; a charged (...)
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  19. The Analytic Versus Representational Theory of Measurement: A Philosophy of Science Perspective.Zoltan Domotor & Vadim Batitsky - 2008 - Measurement Science Review 8 (6):129-146.
    In this paper we motivate and develop the analytic theory of measurement, in which autonomously specified algebras of quantities (together with the resources of mathematical analysis) are used as a unified mathematical framework for modeling (a) the time-dependent behavior of natural systems, (b) interactions between natural systems and measuring instruments, (c) error and uncertainty in measurement, and (d) the formal propositional language for describing and reasoning about measurement results. We also discuss how a celebrated theorem in analysis, (...)
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  20. Quantum Measurement, Complexity and Discrete Physics.Martin Leckey - 2003 - arXiv.
    This paper presents a new modified quantum mechanics, Critical Complexity Quantum Mechanics, which includes a new account of wavefunction collapse. This modified quantum mechanics is shown to arise naturally from a fully discrete physics, where all physical quantities are discrete rather than continuous. I compare this theory with the spontaneous collapse theories of Ghirardi, Rimini, Weber and Pearle and discuss some implications of these theories and CCQM for a realist view of the quantum realm.
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  21.  24
    Interdisciplinary Perspectives on Poverty Measurement, Epistemic Injustices and Social Activism.Valentin Beck, Henning Hahn & Robert Lepenies - 2020 - In Dimensions of Poverty: Measurement, Epistemic Injustices, Activism. pp. 1-20.
    As we enter the 2020s, global poverty is still a grave and persistent problem. Alleviating and eradicating poverty within and across the world’s societies requires a thorough understanding of its nature and extent. Although economists still standardly measure absolute and relative poverty in monetary terms, a consensus is emerging that poverty is a socially relational problem involving deprivations in multiple dimensions, including health, standard of living, education and political participation. The anthology Dimensions of Poverty advances the interdisciplinary debate on multidimensional (...)
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  22.  49
    The Quantum Measurement Problem - Collapse of the Wave Function Explained.Rochelle Marianne Forrester - manuscript
    Quantum physicists have made many attempts to solve the quantum measurement problem, but no solution seems to have received widespread acceptance. The time has come for a new approach. In Sense Perception and Reality: A Theory of Perceptual Relativity, Quantum Mechanics and the Observer Dependent Universe I suggest the quantum measurement problem is caused by a failure to understand that each species has its own sensory world and that when we say the wave function collapses and brings a (...)
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  23.  38
    Methodological Issues Related to Radio Measurement and Ratings in Romania: Solutions and Perspectives.Rareș Obadă - 2018 - Argumentum. Journal of the Seminar of Discursive Logic, Argumentation Theory and Rhetoric 1 (16):94-119.
    The aim of this article is to address the issue of measuring radio audience from a methodological perspective. Although our approach is contextualized, the case study of radio audience measurement in Romania is relevant to a large number of EU countries, in which scholars and practitioners use Day-After-Recall technique. Considering the size of the radio advertising market, as well as the number of radio listeners (about 90% in EU), it is crucial for both radio broadcasters and advertisers to measure (...)
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  24. The Dynamics of Stock Exchange Based on the Formalism of Weak Continuous Quantum Measurement.S. I. Melnyk & I. G. Tuluzov - 2010 - Journal of Physics 238 (012035):1-9.
    The problem of measurement in economic models and the possibility of their quantum-mechanical description are considered. It is revealed that the apparent paradox of such a description is associated with a priori requirement of conformity of the model to all the alternatives of free choice of the observer. The measurement of the state of a trader on a stock exchange is formally defined as his responses to the proposals of sale at a fixed price. It is shown that (...)
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  25.  58
    On the Measurement of Need-Based Justice.Stefan Traub, Alexander Max Bauer, Mark Siebel, Nils Springhorn & Arne Robert Weiß - manuscript
    Need considerations play an important role in empirically informed theories of distributive justice. We propose a concept of need-based justice that is related to social participation and provide an ethical measurement of need-based justice. The β-ε-index satisfies the need-principle, monotonicity, sensitivity, transfer and several »technical« axioms. A numerical example is given.
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  26. Extension and Measurement: A Constructivist Program From Leibniz to Grassmann.Erik C. Banks - 2013 - Studies in History and Philosophy of Science Part A 44 (1):20-31.
    Extension is probably the most general natural property. Is it a fundamental property? Leibniz claimed the answer was no, and that the structureless intuition of extension concealed more fundamental properties and relations. This paper follows Leibniz's program through Herbart and Riemann to Grassmann and uses Grassmann's algebra of points to build up levels of extensions algebraically. Finally, the connection between extension and measurement is considered.
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  27. Compressed Sensing - A New Mode of Measurement.Thomas Vogt - 2017 - In Nicola Mößner & Alfred Nordmann (eds.), Reasoning in Measurement: History and Philosophy of Technoscience Volume 9. New York, USA: Routledge.
    After introducing the concept of compressed sensing as a complementary measurement mode to the classical Shannon-Nyquist approach, I discuss some of the drivers, potential challenges and obstacles to its implementation. I end with a speculative attempt to embed compressed sensing as an enabling methodology within the emergence of data-driven discovery. As a consequence I predict the growth of non-nomological sciences where heuristic correlations will find applications but often bypass conventional pure basic and use-inspired basic research stages due to the (...)
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  28. Quantum-Mechanical Self-Measurement.Bradley Monton - 1998 - In D. Dieks & P. Vermaas (eds.), The Modal Interpretations of Quantum Mechanics. Kluwer Academic Publishers. pp. 307-318.
    The idea of self-measurement by a quantum-mechanical automaton is presented, and the conclusions that are typically reached about what we can come to know from doing self-measurements are shown to be mistaken. Specifically, it is shown that, while we are capable of _predicting_ and _measuring_ the values of two incompatible observables, we are incapable of _knowing_ both these values simultaneously. This is an example of the interesting limitations quantum mechanics places on knowledge.
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  29.  33
    From Eye to Machine: Shifting Authority in Color Measurement.Sean F. Johnston - 2002 - In B. Saunders & J. Van Brakel (eds.), Theories, Technologies, Instrumentalities of Color: Anthropological and Historiographic Perspectives. Lanham, MD 20706, USA: University Press of America. pp. 289-306.
    Given a subject so imbued with contention and conflicting theoretical stances, it is remarkable that automated instruments ever came to replace the human eye as sensitive arbiters of color specification. Yet, dramatic shifts in assumptions and practice did occur in the first half of the twentieth century. How and why was confidence transferred from careful observers to mechanized devices when the property being measured – color – had become so closely identified with human physiology and psychology? A fertile perspective on (...)
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  30.  34
    Measurement Issues of the Social Class in Social Psychology of Education: Is It a Category Mistake?Chetan Sinha - 2017 - Polish Psychological Bulletin 48 (4):481-488.
    The present article discusses the measurement of social class in the social psychology of education research. It was evident that social class experiences are conflated with the socioeconomic status indicators and the subjective measure of the class context was underrepresented. However, this was discussed in Rubin et al about the intersectional nature of social class taking into account both objective and subjective indicators. The derivation of the social class experience from the objective and subjective measures were critically discussed. An (...)
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  31.  77
    Van Fraassen and Ruetsche on Preparation and Measurement.Bradley Monton - 1999 - Philosophy of Science 66 (3):91.
    Ruetsche (1996) has argued that van Fraassen's (1991) Copenhagen Variant of the Modal Interpretation (CVMI) gives unsatisfactory accounts of measurement and of state preparation. I defend the CVMI against Ruetsche's first argument by using decoherence to show that the CVMI does not need to account for the measurement scenario which Ruetsche poses. I then show, however, that there is a problem concerning preparation, and the problem is more serious than the one Ruetsche focuses on. The CVMI makes no (...)
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  32. Imprecise Probability and the Measurement of Keynes's "Weight of Arguments".William Peden - 2018 - IfCoLog Journal of Logics and Their Applications 5 (4):677-708.
    Many philosophers argue that Keynes’s concept of the “weight of arguments” is an important aspect of argument appraisal. The weight of an argument is the quantity of relevant evidence cited in the premises. However, this dimension of argumentation does not have a received method for formalisation. Kyburg has suggested a measure of weight that uses the degree of imprecision in his system of “Evidential Probability” to quantify weight. I develop and defend this approach to measuring weight. I illustrate the usefulness (...)
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  33.  44
    Brazil-Portugal Transcultural Adaptation of the UWES-9: Internal Consistency, Dimensionality, and Measurement Invariance.Jorge Sinval, Sonia Pasian, Cristina Queirós & João Marôco - 2018 - Frontiers in Psychology 9.
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  34. Scientific Measurement as a Dynamic and Cognitive Integration.Godfrey Guillaumin - forthcoming - Signos Filosóficos.
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  35. Addressing the Conflict Between Relativity and Quantum Theory: Models, Measurement and the Markov Property.Gareth Ernest Boardman - 2013 - Cosmos and History 9 (2):86-115.
    Twenty-first century science faces a dilemma. Two of its well-verified foundation stones - relativity and quantum theory - have proven inconsistent. Resolution of the conflict has resisted improvements in experimental precision leaving some to believe that some fundamental understanding in our world-view may need modification or even radical reform. Employment of the wave-front model of electrodynamics, as a propagation process with a Markov property, may offer just such a clarification.
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  36.  14
    Models, Mathematics, and Measurement: A Review of Reconstructing Reality by Margaret MorrisonMargaret Morrison, Reconstructing Reality: Models, Mathematics, and Simulations. Oxford: Oxford University Press , Viii+334 Pp., $65.00. [REVIEW]Paul Humphreys - 2016 - Philosophy of Science 83 (4):627-633.
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  37. Violations of Procedure Invariance in Preference Measurement: Cognitive Explanations.Marcus Selart, Henry Montgomery, Joakim Romanus & Tommy Gärling - 1994 - European Journal of Cognitive Psychology 6:417-435.
    A violation of procedure invariance in preference measurement is that the predominant or prominent attribute looms larger in choice than in a matching task. In Experiment 1, this so-called prominence effect was demonstrated for choices between pairs of options, choices to accept single options, and preference ratings of single options. That is, in all these response modes the prominent attribute loomed larger than in matching. The results were replicated in Experiment 2, in which subjects chose between or rated their (...)
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  38. Quantum Analog of the Black- Scholes Formula(Market of Financial Derivatives as a Continuous Weak Measurement).S. I. Melnyk & I. G. Tuluzov - 2008 - Electronic Journal of Theoretical Physics (EJTP) 5 (18):95–104.
    We analyze the properties of optimum portfolios, the price of which is considered a new quantum variable and derive a quantum analog of the Black-Scholes formula for the price of financial variables in assumption that the market dynamics can by considered as its continuous weak measurement at no-arbitrage condition.
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  39. Folk Moral Objectivism and its Measurement.Lieuwe Zijlstra - 2019 - Journal of Experimental Social Psychology 84.
    Experimental philosophers and psychologists investigate whether people perceive moral judgments to be objectively true or false. Existing research focuses on a single dimension of ‘perceived objectivity’. The present research examines whether multiple dimensions of folk moral objectivity underlie moral judgments. It also examines whether such dimensions relate to perceived objectivity, tolerance, and people’s behavioral intentions to punish norm-violators. Exploratory factor analysis on twenty ethical items revealed three different ways of perceiving moral truth (Independent Truth, Universal Truth, Divine Truth), which each (...)
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  40.  50
    Schrödinger’s Cat Paradox Resolution Using GRW Collapse Model: Von Neumann Measurement Postulate Revisited.Jaykov Foukzon - 2017 - Journal of Applied Mathematics and Physics 5 (2):494-521.
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  41. A Reformulation of von Neumann's Postulates on Quantum Measurement by Using.Elio Conte - forthcoming - Submitted Physical Review A.
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  42. AN EMPIRICAL STUDY ON MEASUREMENT OF EMPLOYEE's SATISFACTION WITH SPECIAL REFERENCE TO AREVA, ALLAHABAD.Indal Kumar - 2014 - SOCRATES 2 (1):222-233.
    This study has been done to measure the satisfaction level of employees with special reference to AREVA, Allahabad. Nowadays scenario has been changed to sustain in such a competitive market. It is very important to retain good employees that contribute towards the achievement of organizational goal and employee’s satisfaction as well. The research papers highlight some of these problems and present a picture of level of job satisfaction among employees of AREVA Companies. It also identifies unique issues of job satisfaction (...)
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  43. PIV Measurement of Velocity Distribution in the Moderator Circulation Test (MCT).Hyoung Tae Kim - 2014 - Journal of Power and Energy Engineering 2 (9):74-80.
    Korea Atomic Energy Research Institute (KAERI) has been carrying out a scaled-down moderator test program to simulate the CANDU-6 moderator circulation phenomena during steady state operation and accident conditions. The Moderator Circulation Test (MCT) facility was designed and constructed as 1/4 scale of the prototype of CANDU-6 reactor. In the present work spatial distribution of two-dimensional velocity in the MCT facility under isothermal condition was measured using planar Particle Image Velocimetry (PIV) system which consists of double pulsed laser, synchronizer, and (...)
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  44. A Philosophy for the Science of Well-Being.Anna Alexandrova - 2017 - New York: Oxford University Press.
    Do the new sciences of well-being provide knowledge that respects the nature of well-being? This book written from the perspective of philosophy of science articulates how this field can speak to well-being proper and can do so in a way that respects the demands of objectivity and measurement.
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  45. Computer Simulation and the Features of Novel Empirical Data.Greg Lusk - 2016 - Studies in History and Philosophy of Science Part A 56:145-152.
    In an attempt to determine the epistemic status of computer simulation results, philosophers of science have recently explored the similarities and differences between computer simulations and experiments. One question that arises is whether and, if so, when, simulation results constitute novel empirical data. It is often supposed that computer simulation results could never be empirical or novel because simulations never interact with their targets, and cannot go beyond their programming. This paper argues against this position by examining whether, and under (...)
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  46. The Mismeasure of Consciousness: A Problem of Coordination for the Perceptual Awareness Scale.Matthias Michel - 2018 - Philosophy of Science.
    As for most measurement procedures in the course of their development, measures of consciousness face the problem of coordination, i.e., the problem of knowing whether a measurement procedure actually measures what it is intended to measure. I focus on the case of the Perceptual Awareness Scale to illustrate how ignoring this problem leads to ambiguous interpretations of subjective reports in consciousness science. In turn, I show that empirical results based on this measurement procedure might be systematically misinterpreted.
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  47. A Sense So Rare: Measuring Olfactory Experiences and Making a Case for a Process Perspective on Sensory Perception.Ann-Sophie Barwich - 2014 - Biological Theory 9 (3):258-268.
    Philosophical discussion about the reality of sensory perceptions has been hijacked by two tendencies. First, talk about perception has been largely centered on vision. Second, the realism question is traditionally approached by attaching objects or material structures to matching contents of sensory perceptions. These tendencies have resulted in an argumentative impasse between realists and anti-realists, discussing the reliability of means by which the supposed causal information transfer from object to perceiver takes place. Concerning the nature of sensory experiences and their (...)
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  48.  38
    Newton on Active and Passive Quantities of Matter.Adwait A. Parker - forthcoming - Studies in History and Philosophy of Science Part A.
    Newton published his deduction of universal gravity in Principia (first ed., 1687). To establish the universality (the particle-to-particle nature) of gravity, Newton must establish the additivity of mass. I call ‘additivity’ the property a body's quantity of matter has just in case, if gravitational force is proportional to that quantity, the force can be taken to be the sum of forces proportional to each particle's quantity of matter. Newton's argument for additivity is obscure. I analyze and assess manuscript versions of (...)
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  49. Meaning of the Wave Function.Shan Gao - manuscript
    We investigate the meaning of the wave function by analyzing the mass and charge density distributions of a quantum system. According to protective measurement, a charged quantum system has effective mass and charge density distributing in space, proportional to the square of the absolute value of its wave function. In a realistic interpretation, the wave function of a quantum system can be taken as a description of either a physical field or the ergodic motion of a particle. The essential (...)
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  50. The Value of Phylogenetic Diversity.Christopher Lean & James Maclaurin - 2016 - In P. Grandcolas (ed.), Biodiversity Conservation and Phylogenetic Systematics. Springer.
    This chapter explores the idea that phylogenetic diversity plays a unique role in underpinning conservation endeavour. The conservation of biodiversity is suffering from a rapid, unguided proliferation of metrics. Confusion is caused by the wide variety of contexts in which we make use of the idea of biodiversity. Characterisations of biodiversity range from all-variety-at-all-levels down to variety with respect to single variables relevant to very specific conservation contexts. Accepting biodiversity as the sum of a large number of individual measures results (...)
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1 — 50 / 251