Observing Local Realism Violations with a Combination of Sensitive and Insensitive Detectors

International Nuclear Information System (INIS)

Yurke, B.; Stoler, D.

1997-01-01

Several systems are exhibited in which the establishment of local realism violation is achieved even when some of the detectors employed are insensitive. The insensitive detectors are homodyne detectors whose task is to determine if the amplitude of a coherent state is α or -α . This determination can be achieved with low quantum efficiency detectors when |α| is large. The other detectors employed determine whether there is an even number or an odd number of photons in a state. These detectors are sensitive since they are required to resolve the difference of one photon. For the examples given, the local realism violation is not diminished as |α| is increased. copyright 1997 The American Physical Society

Energy-time entanglement, elements of reality, and local realism

Science.gov (United States)

Jogenfors, Jonathan; Larsson, Jan-Åke

2014-10-01

The Franson interferometer, proposed in 1989 (Franson 1989 Phys. Rev. Lett. 62 2205-08), beautifully shows the counter-intuitive nature of light. The quantum description predicts sinusoidal interference for specific outcomes of the experiment, and these predictions can be verified in experiment. In the spirit of Einstein, Podolsky, and Rosen it is possible to ask if the quantum-mechanical description (of this setup) can be considered complete. This question will be answered in detail in this paper, by delineating the quite complicated relation between energy-time entanglement experiments and Einstein-Podolsky-Rosen (EPR) elements of reality. The mentioned sinusoidal interference pattern is the same as that giving a violation in the usual Bell experiment. Even so, depending on the precise requirements made on the local realist model, this can imply (a) no violation, (b) smaller violation than usual, or (c) full violation of the appropriate statistical bound. Alternatives include (a) using only the measurement outcomes as EPR elements of reality, (b) using the emission time as EPR element of reality, (c) using path realism, or (d) using a modified setup. This paper discusses the nature of these alternatives and how to choose between them. The subtleties of this discussion needs to be taken into account when designing and setting up experiments intended to test local realism. Furthermore, these considerations are also important for quantum communication, for example in Bell-inequality-based quantum cryptography, especially when aiming for device independence. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘50 years of Bell’s theorem’.

Energy-time entanglement, elements of reality, and local realism

International Nuclear Information System (INIS)

Jogenfors, Jonathan; Larsson, Jan-Åke

2014-01-01

The Franson interferometer, proposed in 1989 (Franson 1989 Phys. Rev. Lett. 62 2205–08), beautifully shows the counter-intuitive nature of light. The quantum description predicts sinusoidal interference for specific outcomes of the experiment, and these predictions can be verified in experiment. In the spirit of Einstein, Podolsky, and Rosen it is possible to ask if the quantum-mechanical description (of this setup) can be considered complete. This question will be answered in detail in this paper, by delineating the quite complicated relation between energy-time entanglement experiments and Einstein–Podolsky–Rosen (EPR) elements of reality. The mentioned sinusoidal interference pattern is the same as that giving a violation in the usual Bell experiment. Even so, depending on the precise requirements made on the local realist model, this can imply (a) no violation, (b) smaller violation than usual, or (c) full violation of the appropriate statistical bound. Alternatives include (a) using only the measurement outcomes as EPR elements of reality, (b) using the emission time as EPR element of reality, (c) using path realism, or (d) using a modified setup. This paper discusses the nature of these alternatives and how to choose between them. The subtleties of this discussion needs to be taken into account when designing and setting up experiments intended to test local realism. Furthermore, these considerations are also important for quantum communication, for example in Bell-inequality-based quantum cryptography, especially when aiming for device independence. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘50 years of Bell’s theorem’. (paper)

Loopholes in Bell inequality tests of local realism

International Nuclear Information System (INIS)

Larsson, Jan-Åke

2014-01-01

Bell inequalities are intended to show that local realist theories cannot describe the world. A local realist theory is one where physical properties are defined prior to and independent of measurement, and no physical influence can propagate faster than the speed of light. Quantum-mechanical predictions for certain experiments violate the Bell inequality while a local realist theory cannot, and this shows that a local realist theory cannot give those quantum-mechanical predictions. However, because of unexpected circumstances or ‘loopholes’ in available experiment tests, local realist theories can reproduce the data from these experiments. This paper reviews such loopholes, what effect they have on Bell inequality tests, and how to avoid them in experiment. Avoiding all these simultaneously in one experiment, usually called a ‘loophole-free’ or ‘definitive’ Bell test, remains an open task, but is very important for technological tasks such as device-independent security of quantum cryptography, and ultimately for our understanding of the world. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to ‘50 years of Bell’s theorem’. (review article)

Reconciling local realism and quantum physics: a critique to Bell

International Nuclear Information System (INIS)

Claudio Garola.

1994-01-01

A Metatheoretical Generalized Principle (MGP) is stated that formalizes an operational non-standard way of looking at the laws of physics. In Quantum Physics MGP leads to the invalidation of Bell's Inequality without renouncing to a minimal form of realism or to locality. Therefore the violation of Bell's Inequality predicted by Quantum Physics does not appear paradoxial if MGP is accepted

Three-qutrit correlations violate local realism more strongly than those of three qubits

International Nuclear Information System (INIS)

Kaszlikowski, Dagomir; Gosal, Darwin; Ling, E.J.; Oh, C.H.; Kwek, L.C.; Zukowski, Marek

2002-01-01

We present numerical data showing that three-qutrit correlations for a pure state, which is not maximally entangled, violate local realism more strongly than three-qubit correlations. The strength of violation is measured by the minimal amount of noise that must be admixed to the system so that the noisy correlations have a local and realistic model

Practical Realism: Against Standard Scientific Realism and Anti-Realism

Directory of Open Access Journals (Sweden)

Rein Vihalemm

2012-12-01

Full Text Available In this paper, the elaboration of the concept of practical realist philosophy of science which began in the author's previous papers is continued. It is argued that practical realism is opposed to standard scientific realism, on the one hand, and antirealism, on the other. Standard scientific realism is challengeable due to its abstract character, as being isolated from practice. It is based on a metaphysical-ontological presupposition which raises the problem of the God's Eye point of view (as it was called by Hilary Putnam. Joseph Rouse's conception of science as practice, Sami Pihlström's pragmatic realism, and even Ilkka Niiniluoto's critical scientific realism are interpreted as practical realist conceptions. Pihlström suggests that the contemporary scientific realist should be prepared to accept the pragmatically naturalized Kantian transcendental perspective on realism. It is argued, however, that this realistically naturalized Kantianism can be nothing more than practical realism, as originated by Karl Marx.

Experimental violation of the local realism for four-qubit Dicke state.

Science.gov (United States)

Zhao, Yuan-Yuan; Wu, Yu-Chun; Xiang, Guo-Yong; Li, Chuan-Feng; Guo, Guang-Can

2015-11-16

Dicke state is an widely used type of multi-particle entangled state in quantum information. However, very few works have been done on its nonlocality. Here we prepare a four-photon symmetric Dicke state, whose fidelity is as high as 0.904 ± 0.004, and devise a simple Bell-type inequality to demonstrate that it violates the local realism with 12 standard deviation.

Structural realism beyond physics.

Science.gov (United States)

Tulodziecki, Dana

2016-10-01

The main purpose of this paper is to test structural realism against (one example from) the historical record. I begin by laying out an existing challenge to structural realism - that of providing an example of a theory exhibiting successful structures that were abandoned - and show that this challenge can be met by the miasma theory of disease. However, rather than concluding that this is an outright counterexample to structural realism, I use this case to show why it is that structural realism, in its current form, has trouble dealing with theories outside physics. I end by making some concrete suggestions for structural realists to pursue if, indeed, they are serious about extending structural realism to other domains. Copyright © 2016 Elsevier Ltd. All rights reserved.

Extensional scientific realism vs. intensional scientific realism.

Science.gov (United States)

Park, Seungbae

2016-10-01

Extensional scientific realism is the view that each believable scientific theory is supported by the unique first-order evidence for it and that if we want to believe that it is true, we should rely on its unique first-order evidence. In contrast, intensional scientific realism is the view that all believable scientific theories have a common feature and that we should rely on it to determine whether a theory is believable or not. Fitzpatrick argues that extensional realism is immune, while intensional realism is not, to the pessimistic induction. I reply that if extensional realism overcomes the pessimistic induction at all, that is because it implicitly relies on the theoretical resource of intensional realism. I also argue that extensional realism, by nature, cannot embed a criterion for distinguishing between believable and unbelievable theories. Copyright © 2016 Elsevier Ltd. All rights reserved.

Extreme Violation of Local Realism in Quantum Hypergraph States.

Science.gov (United States)

Gachechiladze, Mariami; Budroni, Costantino; Gühne, Otfried

2016-02-19

Hypergraph states form a family of multiparticle quantum states that generalizes the well-known concept of Greenberger-Horne-Zeilinger states, cluster states, and more broadly graph states. We study the nonlocal properties of quantum hypergraph states. We demonstrate that the correlations in hypergraph states can be used to derive various types of nonlocality proofs, including Hardy-type arguments and Bell inequalities for genuine multiparticle nonlocality. Moreover, we show that hypergraph states allow for an exponentially increasing violation of local realism which is robust against loss of particles. Our results suggest that certain classes of hypergraph states are novel resources for quantum metrology and measurement-based quantum computation.

Internal Realism: Putnam's Alternative to Metaphysical Realism

Directory of Open Access Journals (Sweden)

J Akbari Takhtameshlou

2014-02-01

Full Text Available Hilary Putnam, who was once one of the representatives and proponents of scientific and metaphysical realism, became an unrelenting opponent of metaphysical realism during the mid-70s. Having argued against alethic and ontological dimensions of metaphysical realism, he proposed “internal realism” as an alternative to it. Putnam's major objection to the alethic dimension of metaphysical realism was that this philosophy brings about an unbridgeable gap between the truth of a proposition and our epistemic justifications for it. As to the ontological dimension of metaphysical realism, he proposed the criticism to the effect that according to this philosophical position the world consists of “ready-made” objects. Putnam poses these criticisms because, as he argues, firstly, truth cannot be considered anything but the ideal justification and secondly, the world is not made of ready-made objects, but rather it is we that cut up the world into different objects when we take a conceptual scheme. Indeed, according to Putnam assuming any "external perspective", whether about truth or about ontology, is meaningless. Having introduced and reviewed Putnam's arguments in rejecting metaphysical realism, this article explains and examines the basic elements of internal realism. The results of this article show that Putnam's objections against metaphysical realism lack the necessary credibility and strength and at the same time his proposed alternative (internal realism has serious problems that made to be addressed. By his chosen conception of truth, internal realism, cannot touch its stated purpose i.e. the removal of a huge gap between the truth of a statement and our knowledge of it. The ontological claims of internal realism are not, indeed, the reliable and true consequences of the thesis of conceptual relativity, which is considered as Putnam’s main base in this regard, but rather it is more a consequence of mistaking the

Repositioning realism

CSIR Research Space (South Africa)

Ruttkamp-Bloem, E

2015-03-01

Full Text Available "Naturalised realism" is presented as a version of realism which is more compatible with the history of science than convergent or explanationist forms of realism. The account is unpacked according to four theses : 1) Whether realism is warranted...

Beyond Gisin's Theorem and its Applications: Violation of Local Realism by Two-Party Einstein-Podolsky-Rosen Steering.

Science.gov (United States)

Chen, Jing-Ling; Su, Hong-Yi; Xu, Zhen-Peng; Wu, Yu-Chun; Wu, Chunfeng; Ye, Xiang-Jun; Żukowski, Marek; Kwek, L C

2015-06-25

We demonstrate here that for a given mixed multi-qubit state if there are at least two observers for whom mutual Einstein-Podolsky-Rosen steering is possible, i.e. each observer is able to steer the other qubits into two different pure states by spontaneous collapses due to von Neumann type measurements on his/her qubit, then nonexistence of local realistic models is fully equivalent to quantum entanglement (this is not so without this condition). This result leads to an enhanced version of Gisin's theorem (originally: all pure entangled states violate local realism). Local realism is violated by all mixed states with the above steering property. The new class of states allows one e.g. to perform three party secret sharing with just pairs of entangled qubits, instead of three qubit entanglements (which are currently available with low fidelity). This significantly increases the feasibility of having high performance versions of such protocols. Finally, we discuss some possible applications.

Earth Observing System Covariance Realism

Science.gov (United States)

Zaidi, Waqar H.; Hejduk, Matthew D.

2016-01-01

The purpose of covariance realism is to properly size a primary object's covariance in order to add validity to the calculation of the probability of collision. The covariance realism technique in this paper consists of three parts: collection/calculation of definitive state estimates through orbit determination, calculation of covariance realism test statistics at each covariance propagation point, and proper assessment of those test statistics. An empirical cumulative distribution function (ECDF) Goodness-of-Fit (GOF) method is employed to determine if a covariance is properly sized by comparing the empirical distribution of Mahalanobis distance calculations to the hypothesized parent 3-DoF chi-squared distribution. To realistically size a covariance for collision probability calculations, this study uses a state noise compensation algorithm that adds process noise to the definitive epoch covariance to account for uncertainty in the force model. Process noise is added until the GOF tests pass a group significance level threshold. The results of this study indicate that when outliers attributed to persistently high or extreme levels of solar activity are removed, the aforementioned covariance realism compensation method produces a tuned covariance with up to 80 to 90% of the covariance propagation timespan passing (against a 60% minimum passing threshold) the GOF tests-a quite satisfactory and useful result.

Realism and Peaceful Change

DEFF Research Database (Denmark)

Wivel, Anders

2018-01-01

This chapter discusses how to understand peaceful change from the perspective of classical realism, structural realism and neoclassical realism.......This chapter discusses how to understand peaceful change from the perspective of classical realism, structural realism and neoclassical realism....

Beyond Gisin’s Theorem and its Applications: Violation of Local Realism by Two-Party Einstein-Podolsky-Rosen Steering

Science.gov (United States)

Chen, Jing-Ling; Su, Hong-Yi; Xu, Zhen-Peng; Wu, Yu-Chun; Wu, Chunfeng; Ye, Xiang-Jun; Żukowski, Marek; Kwek, L. C.

2015-01-01

We demonstrate here that for a given mixed multi-qubit state if there are at least two observers for whom mutual Einstein-Podolsky-Rosen steering is possible, i.e. each observer is able to steer the other qubits into two different pure states by spontaneous collapses due to von Neumann type measurements on his/her qubit, then nonexistence of local realistic models is fully equivalent to quantum entanglement (this is not so without this condition). This result leads to an enhanced version of Gisin’s theorem (originally: all pure entangled states violate local realism). Local realism is violated by all mixed states with the above steering property. The new class of states allows one e.g. to perform three party secret sharing with just pairs of entangled qubits, instead of three qubit entanglements (which are currently available with low fidelity). This significantly increases the feasibility of having high performance versions of such protocols. Finally, we discuss some possible applications. PMID:26108704

Towards a test of non-locality without 'supplementary assumptions'

International Nuclear Information System (INIS)

Barbieri, M.; De Martini, F.; Di Nepi, G.; Mataloni, P.

2005-01-01

We have experimentally tested the non-local properties of the two-photon states generated by a high brilliance source of entanglement which virtually allows the direct measurement of the full set of photon pairs created by the basic QED process implied by the parametric quantum scattering. Standard Bell measurements and Bell's inequality violation test have been realized over the entire cone of emission of the degenerate pairs. By the same source we have verified Hardy's ladder theory up to the 20th step and the contradiction between the standard quantum theory and the local realism has been tested for 41% of entangled pairs

Moral Realism and Anti-Realism in Later Wittgenstein

Directory of Open Access Journals (Sweden)

A Sabramiz

2011-09-01

Full Text Available By emphasis on cognitive aspect of moral realism, this article surveys various divisions in moral realism and anti-realism and, regarding later Wittgenstein's courses, it explores his views about this matter. Thus, after a short description of Wittgenstein’s courses in Philosophical Investigations which are related to this topic, ideas of his commentators in this area are studied. Since moral realism has a firm relation with cognitive and non-cognitive discussion in meta-moral, thus later Wittgenstein’s view about this topic is also investigated. At the end, it is shown that calling Wittgenstein a realist or anti-realist is due to the wrong usage of reality grammar and he cannot be categorized as such.

Structural realism versus deployment realism: A comparative evaluation.

Science.gov (United States)

Lyons, Timothy D

2016-10-01

In this paper I challenge and adjudicate between the two positions that have come to prominence in the scientific realism debate: deployment realism and structural realism. I discuss a set of cases from the history of celestial mechanics, including some of the most important successes in the history of science. To the surprise of the deployment realist, these are novel predictive successes toward which theoretical constituents that are now seen to be patently false were genuinely deployed. Exploring the implications for structural realism, I show that the need to accommodate these cases forces our notion of "structure" toward a dramatic depletion of logical content, threatening to render it explanatorily vacuous: the better structuralism fares against these historical examples, in terms of retention, the worse it fares in content and explanatory strength. I conclude by considering recent restrictions that serve to make "structure" more specific. I show however that these refinements will not suffice: the better structuralism fares in specificity and explanatory strength, the worse it fares against history. In light of these case studies, both deployment realism and structural realism are significantly threatened by the very historical challenge they were introduced to answer. Copyright © 2016 Elsevier Ltd. All rights reserved.

Depressive realism: Wiser or quieter?

OpenAIRE

Blanco, Fernando; Matute, Helena; Vadillo, Miguel A.

2009-01-01

Depressive realism consists of the lower personal control over uncontrollable events perceived by depressed as compared to nondepressed individuals. In this article, we propose that the realism of depressed individuals is caused not by an increased accuracy in perception, but by their more comprehensive exposure to the actual environmental contingencies, which in turn is due to their more passive pattern of responding. To test this hypothesis, dysphoric and nondysphoric participants were e...

Testing nonlocal realism with entangled coherent states

International Nuclear Information System (INIS)

Paternostro, Mauro; Jeong, Hyunseok

2010-01-01

We investigate the violation of nonlocal realism using entangled coherent states (ECSs) under nonlinear operations and homodyne measurements. We address recently proposed Leggett-type inequalities, including a class of optimized incompatibility inequalities proposed by Branciard et al. [Nature Phys. 4, 681 (2008)], and thoroughly assess the effects of detection inefficiency.

Earth Observation System Flight Dynamics System Covariance Realism

Science.gov (United States)

Zaidi, Waqar H.; Tracewell, David

2016-01-01

This presentation applies a covariance realism technique to the National Aeronautics and Space Administration (NASA) Earth Observation System (EOS) Aqua and Aura spacecraft based on inferential statistics. The technique consists of three parts: collection calculation of definitive state estimates through orbit determination, calculation of covariance realism test statistics at each covariance propagation point, and proper assessment of those test statistics.

Realism and the physical world

International Nuclear Information System (INIS)

Leggett, A J

2008-01-01

I consider the extent to which the applicability of the concept of classical realism is constrained, irrespective of the validity or not of the quantum formalism, by existing experiments both in the EPR-Bell setup, including recent experiments testing 'nonlocal realistic' theories, and in the area of 'macroscopic quantum coherence'. Unless we are willing to sacrifice one or more other intuitively plausible notions such as that of the conventional 'arrow of time', it appears impossible, in either context, to maintain the classical notion of realism

Realism Assessment of Sonic Boom Simulators

Science.gov (United States)

Sullivan, Brenda M.; Davies, Patrica; Hodgdon, Kthleen K.; Salamone, Joseph A., III; Pilon, Anthony

2008-01-01

Developments in small supersonic aircraft design are predicted to result in low-intensity sonic booms. Booms generated by current aircraft are similar to those that led to the ban on commercial supersonic fli ght over the US, so are unsuitable for parametric studies of psychoac oustic response to low-intensity booms. Therefore, simulators have be en used to study the impact of predicted low-intensity sonic booms. H owever, simulators have been criticized because, when simulating conv entional-level booms, the sounds were observed to be unrealistic by p eople experienced in listening to sonic booms. Thus, two studies were conducted to measure the perceived realism of three sonic boom simul ators. Experienced listeners rated the realism of conventional sonic boom signatures when played in these simulators. The effects on percei ved realism of factors such as duration of post-boom noise, exclusion of very low frequency components, inclusion of ground reflections, a nd type of simulator were examined. Duration of post-boom noise was f ound to have a strong effect on perceived realism, while type of simu lator had a weak effect. It was determined that post-boom noise had t o be at least 1.5 seconds long for the sound to be rated very realist ic. Loudness level did not affect realism for the range of sounds pla yed in the tests (80-93 dB ASEL).

Local realism versus quantum theory: Violation of the generalized spin-s Bell inequalities for a set of three distinct axes

International Nuclear Information System (INIS)

Ardehali, M.

1990-01-01

Some simple inequalities which demonstrate the incompatibility of local realism with quantum theory are derived. They establish, for the first time, necessary conditions for violation of the generalized spin-s Bell inequalities for a set of three distinct noncoplanar axes. For s=1/2, however, these inequalities are equivalent to Wigner's results, thus giving necessary and sufficient conditions

Replacing Recipe Realism

OpenAIRE

Saatsi, J

2017-01-01

Many realist writings exemplify the spirit of ‘recipe realism’. Here I characterise recipe realism, challenge it, and propose replacing it with ‘exemplar realism’. This alternative understanding of realism is more piecemeal, robust, and better in tune with scientists’ own attitude towards their best theories, and thus to be preferred.

The Relevance of Evidence from the History of Science in the Contemporary Realism/Anti-realism Debate

DEFF Research Database (Denmark)

Wray, K. Brad

2018-01-01

I aim to clarify the relevance of evidence from the history of science to the contemporary realism/anti-realism debate as the need for evidence from the history of science is often misunderstood or misrepresented.......I aim to clarify the relevance of evidence from the history of science to the contemporary realism/anti-realism debate as the need for evidence from the history of science is often misunderstood or misrepresented....

Revisiting Folk Moral Realism.

Science.gov (United States)

Pölzler, Thomas

2017-01-01

Moral realists believe that there are objective moral truths. According to one of the most prominent arguments in favour of this view, ordinary people experience morality as realist-seeming, and we have therefore prima facie reason to believe that realism is true. Some proponents of this argument have claimed that the hypothesis that ordinary people experience morality as realist-seeming is supported by psychological research on folk metaethics. While most recent research has been thought to contradict this claim, four prominent earlier studies (by Goodwin and Darley, Wainryb et al., Nichols, and Nichols and Folds-Bennett) indeed seem to suggest a tendency towards realism. My aim in this paper is to provide a detailed internal critique of these four studies. I argue that, once interpreted properly, all of them turn out in line with recent research. They suggest that most ordinary people experience morality as "pluralist-" rather than realist-seeming, i.e., that ordinary people have the intuition that realism is true with regard to some moral issues, but variants of anti-realism are true with regard to others. This result means that moral realism may be less well justified than commonly assumed.

Reflections on realism in the nuclear age

International Nuclear Information System (INIS)

Cohen, A.

1987-01-01

It is against the realism of living with nuclear weapons that the author addresses. Indeed, realism as a theory of international relations has been under attack on normative-philosophical grounds in recent years by a number of political theorists. The reasons for my criticism of nuclear realism, however, are quite different and separate from the general moral case against realism put forward by these theorists. The arguments developed in this paper are derived directly from the emergent features of the nuclear predicament itself, the ways in which the rise of nuclear weapons has turned out to negate the fundamental logic of realism. The nuclear predicament brings realism to a reductio ad absurdum and negates the very political framework that is supposed to justify it

Corak Realisme Sosialis dalam Hikayat Kadiroen Karya Semaoen

Directory of Open Access Journals (Sweden)

Suyono Suyatno

2016-06-01

Full Text Available Selama ini ada anggapan bahwa dalam sejarah sastra Indonesia corak realisme sosialis hanya ada dalam masa Lekra (1950-1965, padahal novel Hikayat Kadiroen karya Semaoen yang terbit sebelumnya (1920 telah menunjukkan corak realisme sosialis. Oleh karena itu, masalah yang diangkat dalam penelitian ini adalah bagaimanakah corak realisme sosialis dalam novel Hikayat Kadiroen karya Semaoen. Tujuan penelitian ini adalah mengungkap corak realisme sosialis dalam novel Hikayat Kadiroen karya Semaoen. Dengan menggunakan metode deskripsi analitis dan teori sastra Marxis penelitian ini menemukan bahwa novel Hikayat Kadiroen sarat dengan propaganda ideologi Marxis dan propaganda ideologi Marxis dalam karya sastra adalah ciri yang melekat pada karya sastra yang bercorak realisme sosialis. Dengan demikian, dapat disimpulkan bahwa tahun 1920 adalah awal munculnya realisme sosialis dalam sejarah sastra Indonesia. Kata-Kata Kunci: Hikayat Kadiroen, propaganda Marxis, realisme sosialis Abstract: All this time, there is a presumption that in the history of Indonesian literature, the socialist-realism pattern only existed in Lekra period (1950-1965, whereas Hikayat Kadiroen writ-ten by Semaoen published before (1920 had showed shades of socialist realism. Therefore, the issue that will be raised in this study is how the socialist realism pattern was described in Semaoen’s Hikayat Kadiroen? The aim of this study is to prove the shades of socialist realism in Hikayat Kadiroen. Using the analytical description method and Marxist literary theory, the study found out that Hikayat Kadiroen was full of Marxist ideology propaganda, and this Marxist ideology propaganda is the characteristic of literature with socialist realism shades. Thus, it can be concluded that 1920 was the beginning of the rise of socialist realism in the history of Indonesian literature. Key Words: Hikayat Kadiroen, Marxist propaganda, socialist realism

Mario Bunge's Scientific Realism

Science.gov (United States)

Cordero, Alberto

2012-01-01

This paper presents and comments on Mario Bunge's scientific realism. After a brief introduction in Sects. 1 and 2 outlines Bunge's conception of realism. Focusing on the case of quantum mechanics, Sect. 3 explores how his approach plays out for problematic theories. Section 4 comments on Bunge's project against the background of the current…

Realism in Foreign Policy Analysis

DEFF Research Database (Denmark)

Wivel, Anders

2017-01-01

'Realism in Foreign Policy Analysis' traces how realist thinking on foreign policy has developed over the years and discusses the challenges and opportunities faced by various strands of realism when applied to foreign policy analysis....

Critical realism in nursing: an emerging approach.

Science.gov (United States)

Schiller, Catharine J

2016-04-01

Critical realism, a philosophical framework originally developed by Roy Bhaskar in the 1970s, represents a relatively new approach to research generally and to nursing research in particular. This article explores the ontological and epistemological tenets of critical realism and examines the application of critical realist principles to nursing research and practice through a review of the literature. It is evident that few published nursing research studies have, as of yet, utilized critical realism as their paradigm of choice. Both the strengths and limitations of the presentation and use of critical realism in these studies are discussed in this article. Given the varying degrees of success of the authors in explicating critical realism as a philosophical framework, the value of critical realism to the research study, and the ways in which usage of the critical realist framework influenced development of the study and interpretation of findings, it is evident that the quality of future publications espousing the use of critical realism must continue to be strengthened significantly. © 2015 John Wiley & Sons Ltd.

International Relations Research Methodology: Realism

Directory of Open Access Journals (Sweden)

Andrey Vladimirovich Shabaga

2015-12-01

Full Text Available The article examines the origins and conceptual analysis capabilities of international relations in the framework of a realistic paradigm. We research political conditions and preconditions of the creation of realism’s theory and axiological features of realism’s practice in international relations. We also analyze the basic concepts and schools of realism: Realpolitik, political realism, neorealism, neoclassical realism. It is shown that based on the balance of power in the Realpolitik Prussian and Austrian cases, this understanding of politics within the systematics of the XIX century; the adaptation of the bourgeois liberal and national ideas to the foreign-policy specifics Germany middle of the XIX century. It is shown that political realism is targeting an international actor on the desire to subjugate the greatest possible political space. In the case of political weakness (absolute or relative political realism indicates a way of adapting to circumstances in order to achieve the most desirable of the possible. The article discusses the concept A. Rochau, H. Morgenthau, H. Kissinger, K. Waltz, showing differences and instrumentality realistic theories and concludes that the main provisions of the concept as a whole.

Magical Realism and its European Essence

Directory of Open Access Journals (Sweden)

Maryam Ebadi Asayesh

2017-04-01

Full Text Available Magical realism is known with its oxymoronic characteristic, magic plus realism. It became known with the boom of the magical realist novel in the 1960s in Latin America and became globally recognized from 1980 onwards. However, it is mostly forgotten that it had started its journey from Europe. The term “magic realism” first appeared in German philosophy in 1798 in Novalis’ notebook. Then, it entered art criticism in 1925 through Roh’s essay and developed in Italy through by Bontempelli. Later, after transformation and formation, magical realism appeared in the novels as a popular mode first in Latin America and then worldwide. The present study charts the path and discusses the development of magical realism from its commencement in Europe. In addition to presenting the views of Novalis, Roh and Bontempelli on initiating the term, it compares their views to show what characteristic in their views inspires today’s magic realism.

48 CFR 1515.404-475 - Cost realism.

Science.gov (United States)

2010-10-01

... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Cost realism. 1515.404-475... METHODS AND CONTRACT TYPES CONTRACTING BY NEGOTIATION Contract Pricing 1515.404-475 Cost realism. The EPA structured approach is not required when the contracting officer is evaluating cost realism in a competitive...

Evaluating the Effect of Display Realism on Natural Resource Decision Making

Science.gov (United States)

Chong, Steven S.

2018-05-01

Geographic information systems (GIS) facilitate location-based decision making. Despite the improved availability of GIS software to non-professionals, training in cartographic design has not followed suit. Prior research indicates that when presented with map choices, users are influenced by naïve realism, a preference for realistic displays cotaining irrelevant, extraneous details, leading to decreased task efficiency. This study investigated the role of naïve realism in decision making for natural resource management, a field that often employs geospatial tools. Data was collected through a GIS user ability test, a questionnaire and direct observation. Forty volunteer expert and non-expert resource managers evaluated the suitability of different sites for a land management scenario. Each participant was tested on two map display treatments containing different levels of realism - a simpler 2D display and a more complex 3D display - to compare task performance. Performance was measured by task accuracy and task completion time. User perceptions and preferences about the displays were also recorded. Display realism had an impact on performance and there were indications naïve realism was present. Users completed tasks significantly faster on the 2D display and many individuals misjudged which display they were most accurate or fastest with. The results are informative for designing information systems containing interactive maps, particularly for resource management applications. The results also suggest that the order displays were presented had a significant effect and may have implications for teaching users map-based tasks.

Depressive Realism: Wiser or Quieter?

Science.gov (United States)

Blanco, Fernando; Matute, Helena; Vadillo, Miguel A.

2009-01-01

Depressive realism consists of the lower personal control over uncontrollable events perceived by depressed as compared to nondepressed individuals. In this article, we propose that the realism of depressed individuals is caused not by an increased accuracy in perception, but by their more comprehensive exposure to the actual environmental…

Entanglement properties of kaons and tests of hidden-variable models

International Nuclear Information System (INIS)

Genovese, M.

2004-01-01

In this paper we discuss entanglement properties of neutral kaons systems and their use for testing local realism. In particular, we analyze a Hardy-type scheme [A. Bramon and G. Garbarino, Phys. Rev. Lett. 89, 160401 (2002)] recently suggested for performing a test of hidden-variable theories against standard quantum mechanics. Our result is that this scheme could, in principle, lead to a conclusive test of local realism, but only if higher identification efficiencies than in today's experiments will be reached

Quantum mechanics versus local realism and a recent EPR experiment on K/sup 0/K/sup 0/ pairs

CERN Document Server

Foadi, R

1999-01-01

The interest of the Orsay Einstein-Podolsky-Rosen experiments of the eighties was limited by a loophole due to the photomultipliers' low detection efficiency. This limitation can be overcome in the case of neutral kaon pairs for which the detection efficiency is high. We show that for such pairs produced in the state J/sup PC/=1/sup --/ the prediction of local realism differ from those of standard quantum theory by 30561400r more. A natural extension of a recent experiment on antiproton annihilations at rest into kaon pairs (CPLEAR collaboration, A. Apostolakis et al., 1998) could lead to a decisive step forward in this matter. (19 refs).

Local realistic theories and quantum mechanics for the two-neutral-kaon system

International Nuclear Information System (INIS)

Dalitz, R.H.; Garbarino, G.

2001-01-01

The predictions of local realistic theories for the observables concerning the evolution of a K 0 K-bar 0 quantum entangled pair (created in the decay of the phi-meson) are discussed. It is shown, in agreement with Bell's theorem, that the most general local hidden-variable model fails in reproducing the whole set of quantum-mechanical joint probabilities. We achieve these conclusion by employing two different approaches. In the first approach, the local realistic observables are deduced from the most general premises concerning locality and realism, and Bell-like inequalities are not employed. The other approach makes use of Bell's inequalities. In the first approach, under particular conditions for the detection times, the discrepancy between quantum mechanics and local realism for the time-dependent asymmetry turns out to be not less than 20%. A similar incompatibility can be made evident by means of a Bell-type test by employing both Wigner's and (once properly normalized probabilities are used) Clauser-Horne-Shimony-Holt's inequalities. Because of its relatively low experimental accuracy, the data obtained by the CPLEAR collaboration for the asymmetry parameter do not yet allow a decisive test of local realism. Such a test, both with and without the use of Bell's inequalities, should be feasible in the future at the Frascati PHI-factory

Predicting the ungauged basin: Model validation and realism assessment

Directory of Open Access Journals (Sweden)

Tim evan Emmerik

2015-10-01

Full Text Available The hydrological decade on Predictions in Ungauged Basins (PUB led to many new insights in model development, calibration strategies, data acquisition and uncertainty analysis. Due to a limited amount of published studies on genuinely ungauged basins, model validation and realism assessment of model outcome has not been discussed to a great extent. With this paper we aim to contribute to the discussion on how one can determine the value and validity of a hydrological model developed for an ungauged basin. As in many cases no local, or even regional, data are available, alternative methods should be applied. Using a PUB case study in a genuinely ungauged basin in southern Cambodia, we give several examples of how one can use different types of soft data to improve model design, calibrate and validate the model, and assess the realism of the model output. A rainfall-runoff model was coupled to an irrigation reservoir, allowing the use of additional and unconventional data. The model was mainly forced with remote sensing data, and local knowledge was used to constrain the parameters. Model realism assessment was done using data from surveys. This resulted in a successful reconstruction of the reservoir dynamics, and revealed the different hydrological characteristics of the two topographical classes. This paper does not present a generic approach that can be transferred to other ungauged catchments, but it aims to show how clever model design and alternative data acquisition can result in a valuable hydrological model for an ungauged catchment.

Moral realism in nursing.

Science.gov (United States)

Edwards, Steven D

2014-04-01

For more than 15 years Professor Per Nortvedt has been arguing the case for moral realism in nursing and the health-care context more generally. His arguments focus on the clinical contexts of nursing and medicine and are supplemented by a series of persuasive examples. Following a description of moral realism, and the kinds of considerations that support it, criticisms of it are developed that seem persuasive. It is argued that our moral responses are explained by our beliefs as opposed to moral realities. In particular, two key arguments presented by Nortvedt are challenged: the so-called argument from convergence and the argument from clinical sensitivity. Both of these key planks in the case for moral realism are rejected, and an alternative 'social conditioning' account briefly sketched, which, it is claimed, has the same explanatory power as Nortvedt's thesis but does not rest on an appeal to independently existing moral properties. © 2014 John Wiley & Sons Ltd.

Image Visual Realism: From Human Perception to Machine Computation.

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Fan, Shaojing; Ng, Tian-Tsong; Koenig, Bryan L; Herberg, Jonathan S; Jiang, Ming; Shen, Zhiqi; Zhao, Qi

2017-08-30

Visual realism is defined as the extent to which an image appears to people as a photo rather than computer generated. Assessing visual realism is important in applications like computer graphics rendering and photo retouching. However, current realism evaluation approaches use either labor-intensive human judgments or automated algorithms largely dependent on comparing renderings to reference images. We develop a reference-free computational framework for visual realism prediction to overcome these constraints. First, we construct a benchmark dataset of 2520 images with comprehensive human annotated attributes. From statistical modeling on this data, we identify image attributes most relevant for visual realism. We propose both empirically-based (guided by our statistical modeling of human data) and CNN-learned features to predict visual realism of images. Our framework has the following advantages: (1) it creates an interpretable and concise empirical model that characterizes human perception of visual realism; (2) it links computational features to latent factors of human image perception.

[Depressive realism: happiness or objectivity].

Science.gov (United States)

Birinci, Fatih; Dirik, Gülay

2010-01-01

Realism is described as objective evaluations and judgments about the world; however, some research indicates that judgments made by "normal" people include a self-favored, positive bias in the perception of reality. Additionally, some studies report that compared to normal people, such cognitive distortions are less likely among depressive people. These findings gave rise to the depressive realism hypothesis. While results of several studies verify the notion that depressive people evaluate reality more objectively, other studies fail to support this hypothesis. Several causes for these inconsistent findings have been proposed, which can be characterized under 3 headings. One proposed explanation suggests that what is accepted as "realistic" in these studies is not quite objective and is in fact ambiguous. According to another perspective, the term "depressive" used in these studies is inconsistent with the criteria of scientific diagnostic methods. Another suggests that the research results can only be obtained under the specific experimental conditions. General negativity and limited processing are popular approaches used for explaining the depressive realism hypothesis. Nowadays, the debate over this hypothesis continues. The present review focuses on frequently cited research related to depressive realism and discusses the findings.

Interface Realisms

DEFF Research Database (Denmark)

Pold, Søren

2005-01-01

This article argues for seeing the interface as an important representational and aesthetic form with implications for postmodern culture and digital aesthetics. The interface emphasizes realism due in part to the desire for transparency in Human-Computer Interaction (HCI) and partly...

Interactive Realism | Ruttkamp | South African Journal of Philosophy

African Journals Online (AJOL)

I investigate a new understanding of realism in science, referred to as 'interactive realism', and I suggest the 'evolutionary progressiveness' of a theory as novel criterion for this kind of realism. My basic claim is that we cannot be realists about anything except the progress affected by myriad science-reality interactions that ...

Putnam's Internal Realism : A Radical Restatement

NARCIS (Netherlands)

Decock, Lieven; Douven, Igor

Putnam's internal realism is aimed at reconciling realist and antirealist intuitions about truth and the nature of reality. A common complaint about internal realism is that it has never been stated with due precision. This paper attempts to render the position precise by drawing on the literature

The accuracy of meta-metacognitive judgments: regulating the realism of confidence.

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Buratti, Sandra; Allwood, Carl Martin

2012-08-01

Can people improve the realism of their confidence judgments about the correctness of their episodic memory reports by deselecting the least realistic judgments? An assumption of Koriat and Goldsmith's (Psychol Rev 103:490-517, 1996) model is that confidence judgments regulate the reporting of memory reports. We tested whether this assumption generalizes to the regulation of the realism (accuracy) of confidence judgments. In two experiments, 270 adults in separate conditions answered 50 recognition and recall questions about the contents of a just-seen video. After each answer, they made confidence judgments about the answer's correctness. In Experiment 1, the participants in the recognition conditions significantly increased their absolute bias when they excluded 15 questions. In Experiment 2, the participants in the recall condition significantly improved their calibration. The results indicate that recall, more than recognition, offers valid cues for participants to increase the realism of their report. However, the effects were small with only weak support for the conclusion that people have some ability to regulate the realism in their confidence judgments.

Depressive realism: a meta-analytic review.

Science.gov (United States)

Moore, Michael T; Fresco, David M

2012-08-01

The current investigation represents the first meta-analysis of the depressive realism literature. A search of this literature revealed 75 relevant studies representing 7305 participants from across the US and Canada, as well as from England, Spain, and Israel. Results generally indicated a small overall depressive realism effect (Cohen's d=-.07). Overall, however, both dysphoric/depressed individuals (d=.14) and nondysphoric/nondepressed individuals evidenced a substantial positive bias (d=.29), with this bias being larger in nondysphoric/nondepressed individuals. Examination of potential moderator variables indicated that studies lacking an objective standard of reality (d=-.15 versus -.03, for studies possessing such a standard) and that utilize self-report measures to measure symptoms of depression (d=.16 versus -.04, for studies which utilize structured interviews) were more likely to find depressive realism effects. Methodological paradigm was also found to influence whether results consistent with depressive realism were found (d's ranged from -.09 to .14). Copyright © 2012 Elsevier Ltd. All rights reserved.

The methodological defense of realism scrutinized.

Science.gov (United States)

Wray, K Brad

2015-12-01

I revisit an older defense of scientific realism, the methodological defense, a defense developed by both Popper and Feyerabend. The methodological defense of realism concerns the attitude of scientists, not philosophers of science. The methodological defense is as follows: a commitment to realism leads scientists to pursue the truth, which in turn is apt to put them in a better position to get at the truth. In contrast, anti-realists lack the tenacity required to develop a theory to its fullest. As a consequence, they are less likely to get at the truth. My aim is to show that the methodological defense is flawed. I argue that a commitment to realism does not always benefit science, and that there is reason to believe that a research community with both realists and anti-realists in it may be better suited to advancing science. A case study of the Copernican Revolution in astronomy supports this claim. Copyright © 2015 Elsevier Ltd. All rights reserved.

Familiar faces rendered strange: Why inconsistent realism drives characters into the uncanny valley.

Science.gov (United States)

Chattopadhyay, Debaleena; MacDorman, Karl F

2016-09-01

Computer-modeled characters resembling real people sometimes elicit cold, eerie feelings. This effect, called the uncanny valley, has been attributed to uncertainty about whether the character is human or living or real. Uncertainty, however, neither explains why anthropomorphic characters lie in the uncanny valley nor their characteristic eeriness. We propose that realism inconsistency causes anthropomorphic characters to appear unfamiliar, despite their physical similarity to real people, owing to perceptual narrowing. We further propose that their unfamiliar, fake appearance elicits cold, eerie feelings, motivating threat avoidance. In our experiment, 365 participants categorized and rated objects, animals, and humans whose realism was manipulated along consistency-reduced and control transitions. These data were used to quantify a Bayesian model of categorical perception. In hypothesis testing, we found reducing realism consistency did not make objects appear less familiar, but only animals and humans, thereby eliciting cold, eerie feelings. Next, structural equation models elucidated the relation among realism inconsistency (measured objectively in a two-dimensional Morlet wavelet domain inspired by the primary visual cortex), realism, familiarity, eeriness, and warmth. The fact that reducing realism consistency only elicited cold, eerie feelings toward anthropomorphic characters, and only when it lessened familiarity, indicates the role of perceptual narrowing in the uncanny valley.

Metacognition and depressive realism: evidence for the level-of-depression account.

Science.gov (United States)

Soderstrom, Nicholas C; Davalos, Deana B; Vázquez, Susana M

2011-09-01

Introduction. The present study examined the relationship between metacognition (i.e., "thinking about thinking") and depression. More specifically, the depressive realism hypothesis (Alloy & Abramson, 1979), which posits that depressed people have a more accurate view of reality than nondepressed people, was tested. Methods. Nondepressed, mildly depressed, and moderately depressed individuals predicted their memory performance by making judgements of learning after each studied item. These predictions were then compared with actual performance on a free recall task to assess calibration, an index of metacognitive accuracy. Results and conclusions. Consistent with the depressive realism hypothesis, mild depression was associated with better calibration than nondepression. However, this "sadder but wiser" phenomenon appears to only exist to point, as moderate depression and nondepression showed no calibration differences. Thus, the level-of-depression account of depressive realism is supported.

Social acceptance of comparative optimism and realism.

Science.gov (United States)

Milhabet, I; Verlhiac, J F

2011-10-01

Studies of optimism and realism (the accuracy of people's outlook on the future) seek to understand the respective effects of these elements on social approbation. Two experiments examined how comparative optimism (vs. pessimism) and realism (vs. unrealism) interacted to influence the targets' social acceptance based on their perceptions about the future. The results showed that realism, or accuracy of prediction, increased the positive social effects of a comparatively optimistic outlook on the future. In contrast, targets who exhibited comparative pessimism were more socially acceptable when their predictions were unrealistic rather than realistic. This phenomenon was examined by also considering the polarity of the events about which judgments were expressed. These results contribute to the body of research about the relationship between optimism and pessimism and the relationship between optimism and realism.

Child witnesses' metamemory realism.

Science.gov (United States)

Allwood, Carl Martin; Granhag, Pär Anders; Jonsson, Anna-Carin

2006-12-01

This study investigated the degree of realism in the confidence judgments of 11 to 12-year-olds (41 girls and 40 boys) of their answers to questions relating to a short film clip showing a kidnapping event. Four different confidence scales were used: a numeric scale, a picture scale, a line scale and a written scale. The results demonstrated that the children showed a high level of overconfidence in their memories. However, no significant differences between the four confidence scales were found. Weak gender differences were found in that the girls were slightly, but significantly, better calibrated than the boys. In addition, although both boys and girls overestimated the total number of memory questions they had answered correctly, the boys gave higher estimates compared with the girls. In brief, the results indicate that, at least in the context investigated, 11-12 year-old children's confidence in and estimations of their own event memory show poor realism (overconfidence and overestimation). A comparison with previous research on adults indicates that 11 to 12-year-old children show noticeably poorer realism.

Ethical Realism: A Guide to Action?

Science.gov (United States)

Matkin, Gary

2008-01-01

This article presents the author's response to Gary Miller's essay entitled "Ethical Realism and Continuing Education." In his essay, Dr. Miller has provided a valuable opportunity to reflect on the practice of continuing education (CE) leadership. Dr. Miller reviews six principles that are encapsulated in the concept of ethical realism, but are…

Can Realism Be Naturalized?

Directory of Open Access Journals (Sweden)

Christopher Norris

2000-06-01

Full Text Available Hilary Putnam has famously undergone some radical changes of mind with regard to the issue of scientific realism and its wider epistemological bearings. In this paper I defend the arguments put forward by early Putnam in his essays on the causal theory of reference as applied to natural-kind terms, despite his own later view that those arguments amounted to a form of 'metaphysical' realism which could not be sustained against various lines of sceptical attack. I discuss some of the reasons for Putnam's retreat, first to the theory of 'internal (or framework-relative realism proposed in his middle-period writings, and then to a commonsense pragmatist stance which claims to resituate this whole discussion on ground that has not been trodden into ruts by the contending philosophical schools. In particular I examine his protracted engagement with various forms of anti-realist doctrine (Michael Dummet’s most prominent among them, with Wittgenstein's thinking about language-games or meaning-as-use, and with a range of skeptical - relativist positions adopted in the wake of Quine’s influential attack on the two last 'dogmas' of logical empiricism. My paper seeks to show that Putnam has been over-impressed by some of the arguments — from these and other sources — which he takes to constitute a knock-down case against the kind of externalist and causal-realist approach developed in his early essays. It concludes by re-stating that position in summary form and relating it to other, more recent defences of causal realism in epistemology and philosophy of science.

Quantum mechanics is compatible with realism

International Nuclear Information System (INIS)

Burgos, M.E.

1987-01-01

A new paradox of quantum mechanics has recently been proposed by an author claiming that any attempt to inject realism in physical theory is bound to lead to inconsistencies. In this paper the author shows that the mentioned paradox is not such a one and that at present there are no reasons to reject realism

Realism and Anti-Realism about Mental Illness | Wrigley ...

African Journals Online (AJOL)

I pay particular attention to characterising Szasz's account of mental illness as that of an anti-realist error-theory and present ways in which a realist may counter such a position. Ultimately I argue that in order to hold a realist position on mental illness one would have to adopt some form of realism towards values, such as ...

Perspectives on depressive realism: implications for cognitive theory of depression.

Science.gov (United States)

Haaga, D A; Beck, A T

1995-01-01

Beck's cognitive theory of depression has provided a successful description of depressive thinking, with one major exception. The hypothesis that depressed people show biased negative thinking seems contradicted by research indicating that Ss scoring 9 or above on the Beck Depression Inventory were more accurate than their nondepressed counterparts in judging contingencies between their responses and outcomes, seemingly showing "depressive realism". Depressive realism research has attracted attention in numerous areas of psychology, along with critical commentary focused on such issues as whether realism is limited to mild depressive states, whether laboratory tasks are sufficient to document realism, and whether realism is a general characteristic of either depressed or nondepressed people. We analyze the main critiques and show how debates about depressive realism can be heuristic for refinement of cognitive theory of depression.

Depressive cognition: a test of depressive realism versus negativity using general knowledge questions.

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Stone, E R; Dodrill, C L; Johnson, N

2001-11-01

This research is an examination of whether cognition in depressed individuals incorporates a realistic view of the world or a general tendency toward negativity. Participants provided two types of probability judgments of the likelihood that they correctly answered general knowledge questions: the probability that they correctly answered each of the individual questions and an aggregate judgment, after completing the questionnaire, of the percentage of all the questions they thought they had correctly answered. These tasks generally elicit overconfidence and accuracy in nondepressives. In accord with theories of both depressive realism and general negativity, in their item-by-item assessments of their answers to the individual questions, depressed participants demonstrated less overconfidence than nondepressed participants. In accord with the theory of general negativity but not with the theory of depressive realism, however, depressed participants demonstrated underconfidence in their aggregate judgments. The implications of these findings on theories of depressive cognition are discussed.

Critical Realism and Statistical Methods--A Response to Nash

Science.gov (United States)

Scott, David

2007-01-01

This article offers a defence of critical realism in the face of objections Nash (2005) makes to it in a recent edition of this journal. It is argued that critical and scientific realisms are closely related and that both are opposed to statistical positivism. However, the suggestion is made that scientific realism retains (from statistical…

The Universities and the Challenge of Realism

Science.gov (United States)

Evans, Mary

2010-01-01

Universities are often enjoined to "get" with the "real world". In this article, Mary Evans gives an account of interpretations of literary realism in order to consider the "coercive realism" of the contemporary university. The prevailing assumptions that universities must contribute to the "real" world are…

Appropriating Realism: the Transformation of Popular Visual ...

African Journals Online (AJOL)

This paper examines a particular period in the art history of colonial Bengal where the transformations in the visual culture of Bengal stemmed primarily from the free percolation and circulation of the stylistic category of academic realism. It focuses on the dissemination of academic realism through the formal levels of ...

Contextualism adds realism: nursing students' perceptions of and performance in numeracy skills tests.

Science.gov (United States)

Ramjan, Lucie M

2011-11-01

This project investigated nursing students' perceptions of and performance in a de-contextualised diagnostic maths paper (i.e. questions only) and a contextualised diagnostic maths paper (i.e. visual pictures along with questions). Sampling was purposive, the criteria being that participants would be from the population of student nurses (n=700) in their second year, of a three-year Bachelor of Nursing course, undertaking a Unit 'Medical-Surgical Nursing 1' (MSN1) at one of four campuses across the University of Western Sydney (UWS), NSW, Australia. The numerical test scores for both papers were analysed with the assistance of SPSS software and a Professional Development Officer. The survey data were analysed manually and thematically by the researcher. There was a substantive improvement in scores from Test 1 (de-contextualised) to Test 2 (contextualised). It is uncertain whether the change occurred because Test 2 is a genuinely better presentation than Test 1 or just a practice effect. Nevertheless, the contextualised paper was preferred by the majority of students (80%). Students preferred the visual images and revealed that it led to a "deeper learning" of numeracy skills, reduced stress and anxiety levels and simulated 'the real life' clinical setting, thus adding "an element of realism" to the situation. Copyright © 2010 Elsevier Ltd. All rights reserved.

Sex differences in visual realism in drawings of animate and inanimate objects.

Science.gov (United States)

Lange-Küttner, Chris

2011-10-01

Sex differences in a visually realistic drawing style were examined using the model of a curvy cup as an inanimate object, and the Draw-A-Person test (DAP) as a task involving animate objects, with 7- to 12-year-old children (N = 60; 30 boys). Accurately drawing the internal detail of the cup--indicating interest in a depth feature--was not dependent on age in boys, but only in girls, as 7-year-old boys were already engaging with this cup feature. However, the age effect of the correct omission of an occluded handle--indicating a transition from realism in terms of function (intellectual realism) to one of appearance (visual realism)--was the same for both sexes. The correct omission of the occluded handle was correlated with bilingualism and drawing the internal cup detail in girls, but with drawing the silhouette contour of the cup in boys. Because a figure's silhouette enables object identification from a distance, while perception of detail and language occurs in nearer space, it was concluded that boys and girls may differ in the way they conceptualize depth in pictorial space, rather than in visual realism as such.

Did Ptolemy make novel predictions? Launching Ptolemaic astronomy into the scientific realism debate.

Science.gov (United States)

Carman, Christián; Díez, José

2015-08-01

The goal of this paper, both historical and philosophical, is to launch a new case into the scientific realism debate: geocentric astronomy. Scientific realism about unobservables claims that the non-observational content of our successful/justified empirical theories is true, or approximately true. The argument that is currently considered the best in favor of scientific realism is the No Miracles Argument: the predictive success of a theory that makes (novel) observational predictions while making use of non-observational content would be inexplicable unless such non-observational content approximately corresponds to the world "out there". Laudan's pessimistic meta-induction challenged this argument, and realists reacted by moving to a "selective" version of realism: the approximately true part of the theory is not its full non-observational content but only the part of it that is responsible for the novel, successful observational predictions. Selective scientific realism has been tested against some of the theories in Laudan's list, but the first member of this list, geocentric astronomy, has been traditionally ignored. Our goal here is to defend that Ptolemy's Geocentrism deserves attention and poses a prima facie strong case against selective realism, since it made several successful, novel predictions based on theoretical hypotheses that do not seem to be retained, not even approximately, by posterior theories. Here, though, we confine our work just to the detailed reconstruction of what we take to be the main novel, successful Ptolemaic predictions, leaving the full analysis and assessment of their significance for the realist thesis to future works. Copyright © 2015. Published by Elsevier Ltd.

Critical realism and the dialectic.

Science.gov (United States)

Roberts, J M

2001-12-01

A prominent strand within both sociological and social theory has been concerned to develop a 'systems approach' with which to explore social life. One of the most original contributions to a systems approach has arisen within critical realism. In particular critical realism demonstrates that it is possible to abstract the causal powers of different objects of analysis to examine their interaction within concrete and contingent 'open systems'. The recent dialectical turn of critical realism develops this systems approach in a much more rigorous manner. However, in this paper I argue that the (dialectical) critical realist mode of abstraction ultimately fails to embed concepts and categories internally within the specific ideological and historical forms of social relations. Or rather, critical realists do not seek to develop concepts that reflect the self-movement of a historical and contradictory essence. This self-movement is what I prefer to call a 'system'. Consequently critical realists are led to separate method from system in theory construction and such a separation leads to a problematic dualist mode of theorizing. I make these observations from a Hegelian-Marxist position.

A strict experimental test of macroscopic realism in a superconducting flux qubit.

Science.gov (United States)

Knee, George C; Kakuyanagi, Kosuke; Yeh, Mao-Chuang; Matsuzaki, Yuichiro; Toida, Hiraku; Yamaguchi, Hiroshi; Saito, Shiro; Leggett, Anthony J; Munro, William J

2016-11-04

Macroscopic realism is the name for a class of modifications to quantum theory that allow macroscopic objects to be described in a measurement-independent manner, while largely preserving a fully quantum mechanical description of the microscopic world. Objective collapse theories are examples which aim to solve the quantum measurement problem through modified dynamical laws. Whether such theories describe nature, however, is not known. Here we describe and implement an experimental protocol capable of constraining theories of this class, that is more noise tolerant and conceptually transparent than the original Leggett-Garg test. We implement the protocol in a superconducting flux qubit, and rule out (by ∼84 s.d.) those theories which would deny coherent superpositions of 170 nA currents over a ∼10 ns timescale. Further, we address the 'clumsiness loophole' by determining classical disturbance with control experiments. Our results constitute strong evidence for the superposition of states of nontrivial macroscopic distinctness.

The Logic of Truth in Paraconsistent Internal Realism

Directory of Open Access Journals (Sweden)

Manuel Bremer

2008-08-01

Full Text Available The paper discusses which modal principles should hold for a truth operator answering to the truth theory of internal realism. It turns out that the logic of truth in internal realism is isomorphic to the modal system S4.

Formation of Critical Realism Principles in Kazakh Prose

Directory of Open Access Journals (Sweden)

Zhansaya Zharylgapov

2012-12-01

Full Text Available The article is focused on aesthetic principles of the critical realism of the early XX century, which found their expression in the manner of leading artistic method in Kazakh poetry and in political-social lyric poetry. Kazakh prose, which was formed in the critical form during the new type of the realism developed as a definite ideological-artistic method. Due to this fact, the authors conclude that the origin of the realism in Kazakh literature originate from the novels by S. Kubeev "Kalym", M. Kashimov "Bednaya Mariyam", S. Toraygyrov "Krasavitsa Kamar", "Kto vinovat?" and "Neshchastnaya Zhamal" by M. Dulatov.

Confidence judgment in depression and dysphoria: the depressive realism vs. negativity hypotheses.

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Szu-Ting Fu, Tiffany; Koutstaal, Wilma; Poon, Lucia; Cleare, Anthony J

2012-06-01

According to the negativity hypothesis, depressed individuals are over-pessimistic due to negative self-concepts. In contrast, depressive realism suggests that depressed persons are realistic compared to their nondepressed controls. However, evidence supporting depressive realism predominantly comes from judgment comparisons between controls and nonclinical dysphoric samples when the controls showed overconfident bias. This study aimed to test the validity of the two accounts in clinical depression and dysphoria. Sixty-eight participants, including healthy controls (n = 32), patients with DSM-IV major depression (n = 20), and dysphoric participants with CDC-defined chronic fatigue syndrome (n = 16) performed an adjective recognition task and reported their item-by-item confidence judgments and post-test performance estimate (PTPE). Compared to realistic PTPE made by the controls, patients with major depression showed significant underconfidence. The PTPE of the dysphoric participants was relatively accurate. Both the depressed and dysphoric participants displayed less item-by-item overconfidence as opposed to significant item-by-item overconfidence shown by the controls. The judgment-accuracy patterns of the three groups need to be replicated with larger samples using non-memory task domains. The present study confirms depressive realism in dysphoric individuals. However, toward a more severe depressive emotional state, the findings did not support depressive realism but are in line with the prediction of the negativity hypothesis. It is not possible to determine the validity of the two hypotheses when the controls are overconfident. Dissociation between item-by-item and retrospective confidence judgments is discussed. Copyright © 2011 Elsevier Ltd. All rights reserved.

Test of a hypothesis of realism in quantum theory using a Bayesian approach

Science.gov (United States)

Nikitin, N.; Toms, K.

2017-05-01

In this paper we propose a time-independent equality and time-dependent inequality, suitable for an experimental test of the hypothesis of realism. The derivation of these relations is based on the concept of conditional probability and on Bayes' theorem in the framework of Kolmogorov's axiomatics of probability theory. The equality obtained is intrinsically different from the well-known Greenberger-Horne-Zeilinger (GHZ) equality and its variants, because violation of the proposed equality might be tested in experiments with only two microsystems in a maximally entangled Bell state |Ψ-> , while a test of the GHZ equality requires at least three quantum systems in a special state |ΨGHZ> . The obtained inequality differs from Bell's, Wigner's, and Leggett-Garg inequalities, because it deals with spin s =1 /2 projections onto only two nonparallel directions at two different moments of time, while a test of the Bell and Wigner inequalities requires at least three nonparallel directions, and a test of the Leggett-Garg inequalities requires at least three distinct moments of time. Hence, the proposed inequality seems to open an additional experimental possibility to avoid the "contextuality loophole." Violation of the proposed equality and inequality is illustrated with the behavior of a pair of anticorrelated spins in an external magnetic field and also with the oscillations of flavor-entangled pairs of neutral pseudoscalar mesons.

The evolution of offensive realism.

Science.gov (United States)

Johnson, Dominic D P; Phil, D; Thayer, Bradley A

Offensive realism, a theory of international relations, holds that states are disposed to competition and conflict because they are self-interested, power maximizing, and fearful of other states. Moreover, it argues that states are obliged to behave this way because doing so favors survival in the international system. Debate continues as to whether modern states actually do, or should, behave in this way, but we are struck by a different question. In this article, we ask whether the three core assumptions about behavior in offensive realism-self-help, power maximization, and outgroup fear-have any basis in scientific knowledge about human behavioral evolution. We find that these precise traits are not only evolutionarily adaptive but also empirically common across the animal kingdom, especially in primate and human societies. Based on these findings, we hypothesize that states behave as offensive realists predict not just because of anarchy in the modern international system but also because of the legacy of our evolution. In short, offensive realism may really be describing the nature of the human species more than the nature of the international system. If our hypothesis is correct, then evolutionary theory offers the following: (1) a novel ultimate cause of offensive realist behavior; (2) an extension of offensive realism to any domain in which humans compete for power; and (3) an explanation for why individual leaders themselves, and not just states, seek power. However, a key insight from evolution is that the primacy of self-help, power maximization, and outgroup fear does not necessarily condemn individuals or groups to competition and conflict; rather, these traits can in themselves give rise to cooperation and alliances.

The sad truth about depressive realism.

Science.gov (United States)

Allan, Lorraine G; Siegel, Shepard; Hannah, Samuel

2007-03-01

In one form of a contingency judgement task individuals must judge the relationship between an action and an outcome. There are reports that depressed individuals are more accurate than are non-depressed individuals in this task. In particular, nondepressed individuals are influenced by manipulations that affect the salience of the outcome, especially outcome probability. They overestimate a contingency if the probability of an outcome is high--the "outcome-density effect". In contrast, depressed individuals display little or no outcome-density effect. This apparent knack for depressives not to be misled by outcome density in their contingency judgements has been termed "depressive realism", and the absence of an outcome-density effect has led to the characterization of depressives as "sadder but wiser". We present a critical summary of the depressive realism literature and provide a novel interpretation of the phenomenon. We suggest that depressive realism may be understood from a psychophysical analysis of contingency judgements.

Response: Critical Realism--Response to Longhofer and Floersch

Science.gov (United States)

Briar-Lawson, Katharine

2012-01-01

This article addresses key challenges posed by critical realism, proposed by Longhofer and Floersch, as a philosophical underpinning for a science of social work. As a response to Longhofer and Floersch, it is argued that critical realism may be instructive in debates about structural conditions that dictate more inclusive interventions and…

Phenomenological realism, superconductivity and quantum mechanics

International Nuclear Information System (INIS)

Shomar, T.L.E.

1998-01-01

The central aim of this thesis is to present a new kind of realism that is driven not from the traditional realism/anti-realism debate but from the practice of physicists. The usual debate focuses on discussions about the truth of theories and their fit with nature, while the real practices of the scientists are forgotten. The position I shall defend is called 'phenomenological realism': theories are merely tools to construct other theories and models, including phenomenological models; phenomenological models are the vehicles of representation. The realist doctrine was recently undermined by the argument from the pessimistic meta-induction, also known as the argument from scientific revolutions. I argue that phenomenological realism is a new kind of scientific realism which can overcome the problem generated by the argument from scientific revolutions, and which depend on the scientific practice. The realist tried to overcome this problem by suggesting various types of theory dichotomy. I claim that different types of dichotomy presented by realists did not overcome the problem, these dichotomies cut through theory vertically. I argue for a different kind of dichotomy between high level theoretical abstractions and low-level theoretical representations. I claim that theoretical work in physics have two distinct types depending on the way they are built these are: theoretical models which built depending on a top-down approach and phenomenological models which are built depending on a bottom-up approach, this dichotomy cuts the division along a horizontal line between low and high level theory. I present two case studies. One from superconductivity where I contrast the BCS theory of superconductivity with the phenomenological model of Landau and Ginzburg. I show how in that field of physics the historical developments favoured phenomenological models over high-level theoretical abstraction. I show how the BCS theory of superconductivity was constructed, and why it

Cosmology and the Demise of Color Realism

Science.gov (United States)

Hockey, Thomas

2011-04-01

Scientific realism is a bulwark of modern metaphysics, especially entity realism. Scientists expect there to be real objects in nature that may be enumerated and measured using objective properties. (Rest mass is an example.) Is color one of these properties? The question, "What is the color of the Universe?" unexpectedly leads to the conclusion that it is not. Astronomers use the concept of color at their ontological peril.

Critical Realism and Abay’s Aesthetic World

Directory of Open Access Journals (Sweden)

Zhandos Smagulov

2013-01-01

Full Text Available The article is concerned with the oeuvre of the founder of the Kazakh realistic poetry Abay Kunanbayev and his critic and aesthetic views of the method of critical realism in the Kazakh literature, analyses the method of critical realism on the example of the Russian literature, examines aesthetic views of democrat poets and writers of realistic works of the early XX century, represented by Abay Kunanbayev

Naturalizing Alf Ross’s Legal Realism

DEFF Research Database (Denmark)

Holtermann, Jakob v. H.

2014-01-01

In this article I address a pertinent challenge to Scandinavian realism which follows from the widespread perception that the fundamental philosophical premises on which the movement relies, are no longer tenable. Focusing on Alf Ross’s version of Scandinavian realism which has often been...... at the centre of critical attention I argue that his theory can survive the fall of logical positivism through an exercise of philosophical reconstruction. More specifically I argue that it is possible to dismount Ross’s realist legal theory almost intact from its commitments to logical positivism and embed...

Queer Genes: Realism, Sexuality and Science.

Science.gov (United States)

Griffiths, David Andrew

2016-10-19

What are 'gay genes' and are they real? This article looks at key research into these hypothesized gay genes, made possible, in part, by the Human Genome Project. I argue that the complexity of both genetics and human sexuality demands a truly critical approach: one that takes into account feminist epistemologies of science and queer approaches to the body, while putting into conversation resources from agential realism and critical realism. This approach is able to maintain the agential complexity of genetic materiality, while also critically challenging the seemingly stable relationships between sex, gender and sexuality.

Prospects of studying magical realism in Nigerian literature ...

African Journals Online (AJOL)

This paper exposes some of the reasons why magical realism is an interesting topic in literary studies today. It is a brief review of some notable magic realist writers and their popular works. It draws attention to the possibility of studying magical realism in Nigerian literature using the novels of some Nigerian authors who ...

Realism and Pragmatism in a mixed methods study.

Science.gov (United States)

Allmark, Peter; Machaczek, Katarzyna

2018-06-01

A discussion of how adopting a Realist rather than Pragmatist methodology affects the conduct of mixed methods research. Mixed methods approaches are now extensively employed in nursing and other healthcare research. At the same time, realist methodology is increasingly used as philosophical underpinning of research in these areas. However, the standard philosophical underpinning of mixed methods research is Pragmatism, which is generally considered incompatible or at least at odds with Realism. This paper argues that Realism can be used as the basis of mixed methods research and that doing so carries advantages over using Pragmatism. A mixed method study into patient handover reports is used to illustrate how Realism affected its design and how it would have differed had a Pragmatist approach been taken. Discussion Paper. Philosophers Index; Google Scholar. Those undertaking mixed methods research should consider the use of Realist methodology with the addition of some insights from Pragmatism to do with the start and end points of enquiry. Realism is a plausible alternative methodology for those undertaking mixed methods studies. © 2018 John Wiley & Sons Ltd.

Magical Realism in Neil Gaiman’s Coraline

Directory of Open Access Journals (Sweden)

Hosseinpour Saeede

2016-07-01

Full Text Available Magical realism, as a narrative mode or genre in adults’ literature, has been in vogue since its revivifying with the publication of Gabriel Garcia Marquez’s One Hundred Years of Solitude (1967. However, the depiction of the genre in children’s and juvenile literature is a new trend; the presence of its elements have been traced and proved feasibly applicable in the interpretation of recent children’s fiction such as David Almond’s Skelling (1998. In this regard, the main concern of the present article is to sift the characteristic features of magical realism within Neil Gaiman’s Coraline (2002 through the application of Wendy B. Faris’s theoretical framework of the genre therewith Tzvetan Todorov’s definition of the fantastic in order to introduce the novel as an exemplar of magical realism in the domain of children’s literature.

Testing quantum mechanics against macroscopic realism using the output of χ(2) nonlinearity

International Nuclear Information System (INIS)

Podoshvedov, Sergey A.; Kim, Jaewan

2006-01-01

We suggest an all-optical scheme to generate entangled superposition of a single photon with macroscopic entangled states for testing macroscopic realism. The scheme consists of source of single photons, a Mach-Zehnder interferometer in routes of which a system of coupled-down converters with type-I phase matching is inserted, and a beam splitter for the other auxiliary modes of the scheme. We use quantization of the pumping modes, depletion of the coherent states passing through the system, and interference effect in the pumping modes in the process of erasing which-path information of the single-photon on exit from the Mach-Zehnder interferometer. We show the macroscopic fields of the output superposition are distinguishable states. This scheme generates macroscopic entangled state that violates Bell's inequality. Moreover, the detailed analysis concerning change of amplitudes of entangled superposition by means of repeating this process many times is accomplished. We show our scheme works without photon number resolving detection and it is robust to detector inefficiency

Asymmetric BMP4 signalling improves the realism of kidney organoids.

Science.gov (United States)

Mills, Christopher G; Lawrence, Melanie L; Munro, David A D; Elhendawi, Mona; Mullins, John J; Davies, Jamie A

2017-11-01

We present a strategy for increasing the anatomical realism of organoids by applying asymmetric cues to mimic spatial information that is present in natural embryonic development, and demonstrate it using mouse kidney organoids. Existing methods for making kidney organoids in mice yield developing nephrons arranged around a symmetrical collecting duct tree that has no ureter. We use transplant experiments to demonstrate plasticity in the fate choice between collecting duct and ureter, and show that an environment rich in BMP4 promotes differentiation of early collecting ducts into uroplakin-positive, unbranched, ureter-like epithelial tubules. Further, we show that application of BMP4-releasing beads in one place in an organoid can break the symmetry of the system, causing a nearby collecting duct to develop into a uroplakin-positive, broad, unbranched, ureter-like 'trunk' from one end of which true collecting duct branches radiate and induce nephron development in an arrangement similar to natural kidneys. The idea of using local symmetry-breaking cues to improve the realism of organoids may have applications to organoid systems other than the kidney.

Depressive realism and the effect of intertrial interval on judgements of zero, positive, and negative contingencies.

Science.gov (United States)

Msetfi, Rachel M; Murphy, Robin A; Simpson, Jane

2007-03-01

In three experiments we tested how the spacing of trials during acquisition of zero, positive, and negative response-outcome contingencies differentially affected depressed and nondepressed students' judgements. Experiment 1 found that nondepressed participants' judgements of zero contingencies increased with longer intertrial intervals (ITIs) but not simply longer procedure durations. Depressed groups' judgements were not sensitive to either manipulation, producing an effect known as depressive realism only with long ITIs. Experiments 2 and 3 tested predictions of Cheng's (1997) Power PC theory and the Rescorla-Wagner (1972) model, that the increase in context exposure experienced during the ITI might influence judgements most with negative contingencies and least with positive contingencies. Results suggested that depressed people were less sensitive to differences in contingency and contextual exposure. We propose that a context-processing difference between depressed and nondepressed people removes any objective notion of "realism" that was originally employed to explain the depressive realism effect (Alloy & Abramson, 1979).

Critical realism: an important theoretical perspective for midwifery research.

Science.gov (United States)

Walsh, Denis; Evans, Kerry

2014-01-01

there is a dearth of papers in midwifery journals exploring the philosophical underpinnings of various research methods. However, explaining and justifying particular ontological and epistemological positions gives coherence and credibility to chosen research methods. to explore and explain the philosophical underpinning of critical realism and argue for it to be more widely adopted by midwifery researchers, using the exemplar of dystocia research. critical realism as originally espoused by Bhaskar sees reality as layered (realist ontology) and seeks to explore causative mechanisms for what is experienced and observed. In this way it illuminates the complexity of health care, though recognising that knowledge of this complexity is filtered through an interpretive lens (constructionist epistemology). Critical realism encourages a holistic exploration of phenomena, premised on multiple research questions that utilise multiple research methods. critical realism as a philosophical underpinning is therefore particularly apposite for researching midwifery issues and concerns. © 2013 Elsevier Ltd. All rights reserved.

Self-Predictions and Depressive Realism in Future Life Events.

Science.gov (United States)

Walter, Todd J.; And Others

Research has demonstrated that depressed people lack the optimistic bias evidenced by nondepressed persons and that the former may be more realistic in predicting the outcome of future events (depressive realism hypothesis). This study assesses the depressive realism hypothesis by comparing the accuracy of depressed and nondepressed people's…

The end of what? Phenomenology vs. speculative realism

DEFF Research Database (Denmark)

Zahavi, Dan

2016-01-01

Phenomenology has recently come under attack from proponents of speculative realism. In this paper, I present and assess the criticism, and argue that it is either superficial and simplistic or lacks novelty.......Phenomenology has recently come under attack from proponents of speculative realism. In this paper, I present and assess the criticism, and argue that it is either superficial and simplistic or lacks novelty....

Proposed optical test of Bell's inequalities not resting upon the fair sampling assumption

International Nuclear Information System (INIS)

Santos, Emilio

2004-01-01

Arguments are given against the fair sampling assumption, used to claim an empirical disproof of local realism. New tests are proposed, able to discriminate between quantum mechanics and a restricted, but appealing, family of local hidden-variables models. Such tests require detectors with efficiencies just above 20%

A new paradigm for nursing: the potential of realism.

Science.gov (United States)

Wainwright, S P

1997-12-01

Realism has been the dominant approach in the philosophy of science for the last 20 years. Realist philosophy has also been widely employed across a range of social sciences. Unfortunately, these powerful intellectual currents have not reached the shores of nursing which appears trapped in a time-warped debate about 'qualitative' (constructivist) and 'quantitative' (positivist) approaches. This paper argues that both positivism and constructionism are seriously flawed as philosophies of social and natural science. This is in marked contrast with realism which is a philosophy of both the natural and social sciences. I therefore propose that realism should be adopted as a radically different new paradigm for a unified biopsychosocial nursing.

Depressive realism: evidence from false interpersonal perception.

Science.gov (United States)

Yeh, Zai-Ting; Liu, Shen-Ing

2007-04-01

The present study examined the depressive realism hypothesis, which posits that depressed people are often more accurate in their perceptions and judgments than non-depressed people are. Each subject initially generated descriptions of others important to them, both positive and negative important others, in the pretest section, and 3 or 4 weeks later, some subjects were invited into the formal experiment to measure the accuracy of their perceptions in a pseudo-social interaction situation. A total of 52 patients diagnosed with clinical depression and 62 normal matched subjects participated in the experimental procedure. The results indicate that clinically depressed patients provided more accurate, less distorted descriptions of their positive important others than did those in the normal group. However, when information involved the negative important others, the results exhibited a trend, but these results did not provide significant support for the depressive realism hypothesis. The results support the depressive realism hypothesis when tasks involve subjects' own positive important others.

Must Metaethical Realism Make a Semantic Claim?

Science.gov (United States)

Kahane, Guy

2013-02-01

Mackie drew attention to the distinct semantic and metaphysical claims made by meta ethical realists, arguing that although our evaluative discourse is cognitive and objective, there are no objective evaluative facts. This distinction, however, also opens up a reverse possibility: that our evaluative discourse is antirealist, yet objective values do exist. I suggest that this seemingly far-fetched possibility merits serious attention; realism seems com mitted to its intelligibility, and, despite appearances, it isn't incoherent, ineffable, inherently implausible or impossible to defend. I argue that reflection on this possibility should lead us to revise our understanding of the debate between realists and antirealists. It is not only that the realist's semantic claim is insufficient for realism to be true, as Mackie argued; it's not even necessary. Robust metaethical realism is best understood as making a purely metaphysical claim. It is thus not enough for antirealists to show that our discourse is antirealist. They must directly attack the realist's metaphysical claim.

Interferometer tests for quantum non-locality using Bose-Einstein condensates

Energy Technology Data Exchange (ETDEWEB)

Mullin, W J [Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003 (United States); Laloe, F [Laboratoire Kastler Brossel, ENS, UPMC, CNRS, 24 rue Lhomond, 75005 Paris (France)], E-mail: mullin@physics.umass.edu, E-mail: laloe@lkb.ens.fr

2009-02-01

In conventional Einstein-Rosen-Podolsky (EPR) experiments that violate local realism, particles are placed in very particular entangled states. We propose here to use two or three spinless Fock-state Bose-Einstein condensates as independent sources in interferometery experiments. While these states do not seem to be entangled, nevertheless we show that interferometers can be constructed that demonstrate a large variety of different violations local reality. We find violations of Bell inequalities, new Greenberger-Horne-Zeilinger (GHZ) contradictions, and Hardy impossibilities. These violations continue to arbitrarily large particle numbers. A necessary condition to observe the quantum effects is that all particles should be observed; if some are missed, the quantum effects disappear.

Realism ja reaalsuse representatsioonid / Virve Sarapik

Index Scriptorium Estoniae

Sarapik, Virve, 1961-

2003-01-01

Terminitest realism, kujutav kunst, pildiline representatsioon, konventsionalism jt. 1855. a. realismi manifestist, Gustave Courbet' seisukohtadest. Ameerika filosoofi Nelson Goodmani (1906-1998) osutusteooriast

The Interaction of Color Realism and Pictorial Recall Memory.

Science.gov (United States)

Berry, Louis H.

This study investigated the interaction of variations in color realism on pictorial recall memory in order to better understand the effects of variations in color realism, and to draw comparisons between visual recall memory and visual recognition memory in terms of color information processing. Stimulus materials used were three sets of slides,…

Nietzsche's Influence on Bakhtin's Aesthetics of Grotesque Realism

OpenAIRE

Mazour-Matusevich, Yelena

2009-01-01

In her article "Nietzsche's Influence on Bakhtin's Aesthetics of Grotesque Realism" Yelena Mazour-Matusevich discusses Bakhtin's concept of grotesque realism in the light of Nietzsche's influence, particularly his notion of chaos and its expression of the Dionysian blended with and perceived through Russian religious thought and mythological consciousness. Mazour-Matusevich postulates that Nietzsche's influence on Bakhtin is most obvious in the latter's seminal work, Rabelais and His World. I...

The German VR Simulation Realism Scale--psychometric construction for virtual reality applications with virtual humans.

Science.gov (United States)

Poeschl, Sandra; Doering, Nicola

2013-01-01

Virtual training applications with high levels of immersion or fidelity (for example for social phobia treatment) produce high levels of presence and therefore belong to the most successful Virtual Reality developments. Whereas display and interaction fidelity (as sub-dimensions of immersion) and their influence on presence are well researched, realism of the displayed simulation depends on the specific application and is therefore difficult to measure. We propose to measure simulation realism by using a self-report questionnaire. The German VR Simulation Realism Scale for VR training applications was developed based on a translation of scene realism items from the Witmer-Singer-Presence Questionnaire. Items for realism of virtual humans (for example for social phobia training applications) were supplemented. A sample of N = 151 students rated simulation realism of a Fear of Public Speaking application. Four factors were derived by item- and principle component analysis (Varimax rotation), representing Scene Realism, Audience Behavior, Audience Appearance and Sound Realism. The scale developed can be used as a starting point for future research and measurement of simulation realism for applications including virtual humans.

Reality check: the role of realism in stress reduction using media technology.

Science.gov (United States)

de Kort, Y A W; Ijsselsteijn, W A

2006-04-01

There is a growing interest in the use of virtual and other mediated environments for therapeutic purposes. However, in the domain of restorative environments, virtual reality (VR) technology has hardly been used. Here the tendency has been to use mediated real environments, striving for maximum visual realism. This use of photographic material is mainly based on research in aesthetics judgments that has demonstrated the validity of this type of simulations as representations of real environments. Thus, restoration therapy is developing under the untested assumption that photorealistic images have the optimal level of realism, while in therapeutic applications 'experiential realism' seems to be the key rather than visual realism. The present paper discusses this contrast and briefly describes data of three studies aimed at exploring the importance and meaning of realism in the context of restorative environments.

Local realism and the Bell inequality

International Nuclear Information System (INIS)

Brody, T.A.

1989-01-01

The Bell inequality has generally been interpreted to involve two requirements for its validity: a locality condition and the existence of hidden variables. The Bell inequality could only be satisfied within the framework of a non-local theory. The Pauli exclusion principle bears an evident non-local character, the origins and implications of which cannot be said to be fully understood; nevertheless, it has not given rise to the conceptual confusions that followed in the wake of the Bell inequality. (Author)

Comparison of Linear Microinstability Calculations of Varying Input Realism

International Nuclear Information System (INIS)

Rewoldt, G.

2003-01-01

The effect of varying ''input realism'' or varying completeness of the input data for linear microinstability calculations, in particular on the critical value of the ion temperature gradient for the ion temperature gradient mode, is investigated using gyrokinetic and gyrofluid approaches. The calculations show that varying input realism can have a substantial quantitative effect on the results

Comparison of linear microinstability calculations of varying input realism

International Nuclear Information System (INIS)

Rewoldt, G.; Kinsey, J.E.

2004-01-01

The effect of varying 'input realism' or varying completeness of the input data for linear microinstability calculations, in particular on the critical value of the ion temperature gradient for the ion temperature gradient mode, is investigated using gyrokinetic and gyrofluid approaches. The calculations show that varying input realism can have a substantial quantitative effect on the results

Dark pedagogy – Speculative Realism and Environmental and sustainability education

DEFF Research Database (Denmark)

Lysgaard, Jonas Andreasen; Bengtssen, Stefan; Laugesen, Martin

2018-01-01

such as correlationism, hyperobjects, object oriented ontology, undermining, overmining and duomining in order to develop a dark pedagogy that could draw on insights from speculative realism and develop the key concepts and discussions within ESE. Based on inspiration from speculative realism a dark pedagogy could...

Exorcising the Racism Phantasm: Racial Realism in Educational Research

Science.gov (United States)

Blaisdell, Benjamin

2016-01-01

Based on a 3-year ethnographic project at a public elementary school in North Carolina, this article discusses how the concept of racial realism can be useful to researchers trying to live up to the goals of critical race studies in school-based research. Racial realism maintains that racism is a permanent aspect of U.S. society and schools. A…

Common-Sense Realism and the Unimaginable Otherness of Science

Directory of Open Access Journals (Sweden)

Bradley Monton

2007-12-01

Full Text Available Bas van Fraassen endorses both common-sense realism — the view, roughly, that the ordinary macroscopic objects that we take to exist actually do exist — and constructive empiricism — the view, roughly, that the aim of science is truth about the observable world. But what happens if common-sense realism and science come into conflict? I argue that it is reasonable to think that they could come into conflict, by giving some motivation for a mental monist solution to the measurement problem of quantum mechanics. I then consider whether, in a situation where science favors the mental monist interpretation, van Fraassen would want to give up common-sense realism or would want to give up science.

Emergent Paradigm: Critical Realism and Transformative Research in Educational Administration

Science.gov (United States)

Egbo, Benedicta

2005-01-01

This paper explores the prospects of using critical realism as a guiding philosophy for critical inquiry in the field of educational administration. A relatively recent philosophy in the social sciences, critical realism offers an alternative framework for researchers engaged in empirical work that is aimed at transforming undesirable social…

Idealism and realism in International Relations: an ontological debate

Directory of Open Access Journals (Sweden)

Vitor Ramon Fernandes

2016-11-01

Full Text Available The debate between realism and idealism continues to mark the discipline of International Relations. On the one hand, realism argues that international politics is a struggle for power and a quest for survival, which results in a condition of permanent conflict between States without any possibility of evolution or progress. On the other hand, idealism considers it possible to build a world of peaceful coexistence, prosperity and well-being, achieved through cooperation and based on values and aspirations shared by humans. The object of this article is to analyse the debate between idealism and realism, considering it as an ontological debate and taking into account the controversy it has generated. The argument presented here is that both realism and idealism are two responses to the creation and maintenance of international order, that is, how States relate in international society; however these responses are not mutually exclusive and can coexist in constant tension with one another. An analysis of internationalist thought of two authors, Hans Morgenthau and Raymond Aron, is also presented, which relates to how they are positioned in this debate as well as International Relations as a whole.

Aram Khachaturian and socialist realism: A reconsideration

Directory of Open Access Journals (Sweden)

Schultz Joseph

2016-01-01

Full Text Available Aram Khachaturian remains a neglected figure in scholarship on Soviet music, his work often held as exemplifying Socialist Realism at its most conformist. In this article I suggest that folk music strongly influenced his style well before the imposition of Socialist Realism, and that his musical language and aesthetics have much more in common with those of contemporary composers in the West than has previously been assumed. A central focus of the paper will be to examine the role played by Soviet musicologists in placing questionable critical constructs on Khachaturian’s career and creative achievement.

American Legal Realism: Research Programme and Policy Impact

Directory of Open Access Journals (Sweden)

Frans L. Leeuw

2017-12-01

Full Text Available The article addresses two questions:1. Can Legal Realism be seen as a scientific research programme enabling growth of knowledge? To answer that question, the author uses Lakatos’s  work on the methodology of scientific research programmes as a frame of reference.2. What has been the role of American Legal Realism during the first part of the 20th century in helping to develop and implement the New Deal policy vis-à-vis its scientific work?After outlining some characteristics of American Legal Realism and Lakatos’s concept, the author studies LR from this perspective and concludes that LR can at the maximum be seen as a research programme of a very rudimentary nature with largely only a focus on procedures/methods. Despite this conclusion, LR has been important in stimulating questions in which social science research and law came together. Next, the professor-realist-relationship that helped President Roosevelt to have his New Deal developed and implemented is also discussed. A downside of this ‘professor-realist-advisor-partnership’ may have been that a LR scientific research programme has not been developed. Given the increased visibility of New Legal Realism, the paper finally stresses the relevance of working with scientific research programmes and the importance of being on the alert when linking research to (legal policies.

Earth Observing System Covariance Realism Updates

Science.gov (United States)

Ojeda Romero, Juan A.; Miguel, Fred

2017-01-01

This presentation will be given at the International Earth Science Constellation Mission Operations Working Group meetings June 13-15, 2017 to discuss the Earth Observing System Covariance Realism updates.

Interoperability Testing Using the Hardware-in-the-Loop Test Tool

National Research Council Canada - National Science Library

Buxton, Bradley

1999-01-01

In the past, missile defense testing was limited to models and simulations, which provided maximum flexibility but often lacked realism, or to live fire testing, which provided realism but proved very expensive...

Realism, Relativism, and Evolutionary Psychology

NARCIS (Netherlands)

Derksen, M.

Against recent attempts to forge a reconciliation between constructionism and realism, I contend that, in psychology at least, stirring up conflict is a more fruitful strategy. To illustrate this thesis, I confront a school of psychology with strong realist leanings, evolutionary psychology, with

The realism problem of quantum mechanics in view of the decoherence interpretation

International Nuclear Information System (INIS)

Messer, Joachim August

2007-01-01

Quantum mechanics in the conception, as it is today present, contains - what concerns its conceivable understanding and its interpretation - numerous paradoxa. The best known Copenhagen interpretation is critized and other interpretations, as the many-world interpretation and the modern, today mostly attended decoherence interpretation are put to this describingly on side. Axiomatic explanation attempts, like those from Mackey, Jauch, and Piron are analyzed and the measurement problem discussed from three ways of view: the introduction of a cut by Georg Suessmann, the scaling formalism from Klaus Hepp, and the philosophy from Bernulf Kanitschneider. Especially the critique given by Albert Einstein on the Bohr-Heisenberg Copenhagen interpretation and the completeness of a realistic quantum theory by the EPR thought experiment (called from Einstein, Podolsky, and Rosen) is more detailedly studied and extended to a holomorphic realism, in which the measurement quantities become visible as boundary values of a holomorphic function. This analytic continuation throws a new light on the body-soul parallelism, which exceeds the positions of Platon and Feigl. Beside the decoherence also the superselection rules, which are extensively discussed, are an example for a realistic state reduction - however the nonlocality of realistic quantum mechanics forces to a dualism of Higgs' symmetry breaking with local decoherence in the terrestrial laboratory. The position of a holomorphic barycentric realism is worked out by regress to the quantum field theory of Lehmann, Symanzik, and Zimmermann (LSZ) with its reduction formula. Quantum-cosmological implications, non-commutative geometry, K theory, and background field are also discussed. The newly designed knowledge theory of the holomorphic, barycentric realism - which in the classical limit goes over in a critical realism - forms also a bridge to a deepened humanism, which cannot be constructed from purely classical physics. As

Bringing critical realism to nursing practice: Roy Bhaskar's contribution.

Science.gov (United States)

Williams, Lynne; Rycroft-Malone, Jo; Burton, Christopher R

2017-04-01

In the context of modern nursing practice that is embedded within complex social situations, critical discussions about the contribution of major philosophers are relevant and important. Whilst nurse theorists have advanced and shaped nursing as a discipline, other major philosophers can offer much to advance nursing enquiry. In this paper, we focus on philosopher Roy Bhaskar who, amongst others, developed critical realism, a philosophy for social science which connects with how many of us think about the world. Bhaskar's work focuses our attention on the interplay between structure and agency and on the search for the causative or generative mechanisms that explain the social world. Bhaskar was interested in human emancipation, and we suggest his work is of great importance to advance understanding of complex social situations. Critical realism has already been endorsed by a range of disciplines, especially in research which focuses on real problems and acknowledges the complexities of the social world. In recent evidence from healthcare literature, there has been a surge in research using realist methodology (realist evaluation and realist synthesis), which is underpinned by the philosophy of critical realism and which offers a different perspective to understanding nursing and healthcare problems through the realist lens. However, we suggest that sufficient attention is not always paid to the philosophical roots of this methodology. In this paper, we provide insight into Bhaskar's work and demonstrate how research positioned within critical realism and realist methodology can advance nursing and healthcare-related knowledge. Through shining a light on Bhaskar, we illustrate how critical realism philosophy is a natural fit with human and health science enquiry, including nursing. © 2016 John Wiley & Sons Ltd.

Minimum detection efficiencies for a loophole-free observable-asymmetric Bell-type test

International Nuclear Information System (INIS)

Garbarino, G.

2010-01-01

We discuss the problem of finding the most favorable conditions for closing the detection loophole in a test of local realism with a Bell inequality. For a generic nonmaximally entangled two-qubit state and two incompatible bases to be adopted for alternative measurements of two observables a and b on each party, we apply Hardy's proof of nonlocality without inequality and derive an Eberhard-like inequality. For an infinity of nonmaximally entangled states we find that it is possible to refute local realism by requiring perfect detection efficiency for only one of the two observables, say b, to be measured on each party: The test is free from the detection loophole for any value of the detection efficiency corresponding to the other observable a. The maximum tolerable noise in such a loophole-free observable-asymmetric test is also evaluated.

Using critical realism as a framework in pharmacy education and social pharmacy research.

Science.gov (United States)

Oltmann, Carmen; Boughey, Chrissie

2012-01-01

This article challenges the idea that positivism is capable of representing the complexity of social pharmacy and pharmacy education. It is argued that critical realism provides a framework that allows researchers to look at the nature of reality and at mechanisms that produce, or have the tendency to produce, events and experiences of those events. Critical realism is a framework, not a method. It allows researchers to make observations about phenomena and explain the relationships and connections involved. The researcher has to look for mechanisms and structures that could explain why the phenomena, the connections, and the relationships exist (or do not) and then try to show that these mechanisms do exist. This article first contextualizes critical realism, then briefly describes it, and lastly exemplifies the use of critical realism in a discussion of a research project conducted in pharmacy education. Critical realism may be particularly useful in interdisciplinary research, for example, where practitioners and researchers are working together in a social pharmacy or pharmacy education setting. Critical realism requires the practitioners and the researchers to question and make known their assumptions about their own realities and to think of a complex problem or phenomenon in terms of a stratified reality, generative mechanisms, and tendencies. Critical realism may make research more rigorous and also allow researchers to conceive of a greater breadth of research designs for their work. Copyright © 2012 Elsevier Inc. All rights reserved.

Self-censorship in Massimo Bontempelli’s Magical Realism

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Wissia Fiorucci

2015-05-01

Full Text Available This article aims to investigate the interplay between censorship, self-censorship and the narrative strategies of magical realism in Il figlio di due madri by Italian author Massimo Bontempelli (1878–1960. Having been head of the National Fascist Writers Union from the mid- to late-1920s, critics have noted that Bontempelli’s detachment from the Fascist credo emerges in his work from the mid- to late-1930s. I intend to problematise this perspective, by recognising the significance of Il figlio di due madri (1929 in the development of Bontempelli’s anti-Fascist sentiment. This work preceded (by several years Bontempelli’s official break with Fascism in 1936, when he published an article against the political control of the arts and caesarianism in La gazzetta del popolo. An anti-Fascist sentiment had, however, in my view already been expressed in Bontempelli’s works of magical realism Il figlio di due madri (1929 and Vita e morte di Adria e dei suoi figli (1930. These two novels deal with controversial topics that, I would claim, refute some of Fascism’s foremost principles, an appraisal that was disguised through deliberate acts of self-censorship. More precisely, it is through his deconstruction of mimetic writing that Bontempelli’s critique of the regime comes into existence, as the narrative strategies I deem instrumental to his self-censorship (e.g. authorial reticence, metaphor, mythopoiesis reflect the poetics of magical realism in «its inherent transgressive and subversive qualities» (Bowers 2004: 63. By conveying a rejection of the systematised understanding of literature that Bontempelli associates with literary realisms, at the same time he conveys his ideological refusal of dogmatic views of reality. Thus, in his mystifying realism, magic acts as both a tool for concealing his ideology—a tool for self-censorship, that is—and as the very means by which this ideology can be generated.

Impact of Dysphoria and Self-Consciousness on Perceptions of Social Competence: Test of the Depressive Realism Hypothesis

Science.gov (United States)

Chau, Phuong M.; Milling, Leonard S.

2006-01-01

Depressive realism refers to a cognitive style wherein depressed people sometimes have more accurate perceptions of reality than nondepressed people. The notion of depressives being "sadder yet wiser" was controversial when first presented, and continues to be heavily debated. Self-perception studies provide maximum external validity,…

Immersive Learning: Realism, Authenticity & Audience

OpenAIRE

Livingstone, Daniel

2016-01-01

For almost 20 years the Digital Design Studio has been exploring and applying virtual reality for a wide range of industrial, commercial and educational applications. Drawing from a range of recent projects, we explore the complex relationships between realism, authenticity and audience for effective engagement and education in immersive learning.

Political realism as ideology critique

NARCIS (Netherlands)

Prinz, J.; Rossi, E.

2017-01-01

This paper outlines an account of political realism as a form of ideology critique. We defend the normative edge of this critical-theoretic project against the common charge that there is a problematic trade-off between a theory’s groundedness in facts about the political status quo and its ability

Quantum mechanics versus macroscopic realism: Is the flux there when nobody looks

International Nuclear Information System (INIS)

Leggett, A.J.; Garg, A.

1985-01-01

It is shown that, in the contect of an idealized ''macroscopic quantum coherence'' experiment, the prediction of quantum mechanics are incompattible with the conjunction of two general assimptions which are designated ''macroscopic realism'' and ''noninvasive measurability at the macroscopiclevel.'' The conditions under which quantum mechanics can be tested against these assumptions in a realistic experiment are discussed

Realism of procedural task trainers in a pediatric emergency medicine procedures course.

Science.gov (United States)

Shefrin, Allan; Khazei, Afshin; Cheng, Adam

2015-01-01

Pediatric emergency medicine (PEM) physicians have minimal experience in life saving procedures and have turned to task trainers to learn these skills. Realism of these models is an important consideration that has received little study. PEM physicians and trainees participated in a day long procedural training course that utilized commercially available and homemade task trainers to teach pericardiocentesis, chest tube insertion, cricothyroidotomy and central line insertion. Participants rated the realism of the task trainers as part of a post-course survey. The homemade task trainers received variable realism ratings, with 91% of participants rating the pork rib chest tube model as realistic, 82% rating the gelatin pericardiocentesis mold as realistic and 36% rating the ventilator tubing cricothyroidotomy model as realistic. Commercial trainers also received variable ratings, with 45% rating the chest drain and pericardiocentesis simulator as realistic, 74% rating the crichotracheotomy trainer as realistic and 80% rating the central line insertion trainer as realistic. Task training models utilized in our course received variable realism ratings. When deciding what type of task trainer to use future courses should carefully consider the desired aspect of realism, and how it aligns with the procedural skill, balanced with cost considerations.

Perceptual Evaluation of Photo-Realism in Real-Time 3D Augmented Reality

DEFF Research Database (Denmark)

Borg, Mathias; Paprocki, Martin Marko; Madsen, Claus B.

2014-01-01

We present a framework for creating photo-realism of three-dimensional augmented objects, as well as a perceptual evaluating of the scenes. A setup utilizing different lighting conditions is created. Different parameters affecting the realism are evaluated. These are camera artefacts, shadows, nu...

Realism of procedural task trainers in a pediatric emergency medicine procedures course

Directory of Open Access Journals (Sweden)

Allan Shefrin

2015-04-01

Conclusions: Task training models utilized in our course received variable realism ratings. When deciding what type of task trainer to use future courses should carefully consider the desired aspect of realism, and how it aligns with the procedural skill, balanced with cost considerations.

Depressive realism and clinical depression.

Science.gov (United States)

Carson, Richard C; Hollon, Steven D; Shelton, Richard C

2010-04-01

Depressive realism suggests that depressed individuals make more accurate judgments of control than their nondepressed counterparts. However, most studies demonstrating this phenomenon were conducted in nonclinical samples. In this study, psychiatric patients who met criteria for major depressive disorder underestimated control in a contingent situation and were consistently more negative in their judgments than were nondepressed controls. Depressed patients were less likely than their nondepressed counterparts to overestimate control in a noncontingent situation, but largely because they perceived receiving less reinforcement. Depressed patients were no more likely to use the appropriate logical heuristic to generate their judgments of control than their nondepressed counterparts and each appeared to rely on different primitive heuristics. Depressed patients were consistently more negative than their nondepressed counterparts and when they did appear to be more "accurate" in their judgments of control (as in the noncontingent situation) it was largely because they applied the wrong heuristic to less accurate information. These findings do not support the notion of depressive realism and suggest that depressed patients distort their judgments in a characteristically negative fashion. 2009 Elsevier Ltd. All rights reserved.

Ways of knowing: realism, non-realism, nominalism and a typology revisited with a counter perspective for nursing science.

Science.gov (United States)

Garrett, Bernard M; Cutting, Roger L

2015-06-01

In this paper, we reconsider the context of Barbara Carper's alternative ways of knowing, a prominent discourse in modern nursing theory in North America. We explore this relative to the concepts of realism, non-realism and nominalism, and investigate the philosophical divisions behind the original typology, particularly in relationship to modern scientific enquiry. We examine forms of knowledge relative to realist and nominalist positions and make an argument ad absurdum against relativistic interpretations of knowledge using the example of Borge's Chinese Emporium of Benevolent Knowledge. We propose a contentious postpositivist practical classification for nursing knowledge that demonstrates and supports the idea that knowledge has both individual and subjective components. This classification supports the practical application of nursing knowledge within the paradigm of realist postpositivist science. © 2014 John Wiley & Sons Ltd.

Significant-Loophole-Free Test of Bell's Theorem with Entangled Photons.

Science.gov (United States)

Giustina, Marissa; Versteegh, Marijn A M; Wengerowsky, Sören; Handsteiner, Johannes; Hochrainer, Armin; Phelan, Kevin; Steinlechner, Fabian; Kofler, Johannes; Larsson, Jan-Åke; Abellán, Carlos; Amaya, Waldimar; Pruneri, Valerio; Mitchell, Morgan W; Beyer, Jörn; Gerrits, Thomas; Lita, Adriana E; Shalm, Lynden K; Nam, Sae Woo; Scheidl, Thomas; Ursin, Rupert; Wittmann, Bernhard; Zeilinger, Anton

2015-12-18

Local realism is the worldview in which physical properties of objects exist independently of measurement and where physical influences cannot travel faster than the speed of light. Bell's theorem states that this worldview is incompatible with the predictions of quantum mechanics, as is expressed in Bell's inequalities. Previous experiments convincingly supported the quantum predictions. Yet, every experiment requires assumptions that provide loopholes for a local realist explanation. Here, we report a Bell test that closes the most significant of these loopholes simultaneously. Using a well-optimized source of entangled photons, rapid setting generation, and highly efficient superconducting detectors, we observe a violation of a Bell inequality with high statistical significance. The purely statistical probability of our results to occur under local realism does not exceed 3.74×10^{-31}, corresponding to an 11.5 standard deviation effect.

Naïve realism: folk fallacies in the design and use of visual displays.

Science.gov (United States)

Smallman, Harvey S; Cook, Maia B

2011-07-01

Often implicit in visual display design and development is a gold standard of photorealism. By approximating direct perception, photorealism appeals to users and designers by being both attractive and apparently effortless. The vexing result from numerous performance evaluations, though, is that increasing realism often impairs performance. Smallman and St. John (2005) labeled misplaced faith in realistic information display Naïve Realism and theorized it resulted from a triplet of folk fallacies about perception. Here, we illustrate issues associated with the wider trend towards realism by focusing on a specific current trend for high-fidelity perspective view (3D) geospatial displays. In two experiments, we validated Naïve Realism for different terrain understanding tasks, explored whether certain individuals are particularly prone to Naïve Realism, and determined the ability of task feedback to mitigate Naïve Realism. Performance was measured for laying and judging a concealed route across realistic terrain shown in different display formats. Task feedback was either implicit, in Experiment 1, or explicit in Experiment 2. Prospective and retrospective intuitions about the best display formats for the tasks were recorded and then related to task performance and participant spatial ability. Participants generally intuited they would perform tasks better with more realism than they actually required. For example, counter to intuitions, lowering fidelity of the terrain display revealed the gross scene layout needed to lay a well-concealed route. Individuals of high spatial ability calibrated their intuitions with only implicit task feedback, whereas those of low spatial ability required salient, explicit feedback to calibrate their intuitions about display realism. Results are discussed in the wider context of applying perceptual science to display design, and combating folk fallacies. Copyright © 2010 Cognitive Science Society, Inc.

Increasing the realism of a laparoscopic box trainer: a simple, inexpensive method.

Science.gov (United States)

Hull, Louise; Kassab, Eva; Arora, Sonal; Kneebone, Roger

2010-01-01

Simulation-based training in medical education is increasing. Realism is an integral element of creating an engaging, effective training environment. Although physical trainers offer a low-cost alternative to expensive virtual reality (VR) simulators, many lack in realism. The aim of this research was to enhance the realism of a laparoscopic box trainer by using a simple, inexpensive method. Digital images of the abdominal cavity were captured from a VR simulator. The images were printed onto a laminated card that lined the bottom and sides of the box-trainer cavity. The standard black neoprene material that encloses the abdominal cavity was replaced with a skin-colored silicon model. The realism of the modified box trainer was assessed by surgeons, using quantitative and qualitative methodologies. Results suggest that the modified box trainer was more realistic than a standard box trainer alone. Incorporating this technique in the training of laparoscopic skills is an inexpensive means of emulating surgical reality that may enhance the engagement of the learner in simulation.

Lighting up: magical realism and resistance to dictatorships in Latin America

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Gretha Leite Maia

2017-01-01

Full Text Available This is a study that articulates the literary genre magical realism and the movement of resistance to military dictatorships in Latin America during the twentieth century. For that, the definition of the fantastic literary genre from T. Todorov is examined. The reasons for using fantastic fiction after the development of a realistic literature are investigated below. Finally, two works representative of Latin American fantastic realism are analyzed: Incident in Antares, by the Brazilian writer Erico Verissimo, and The House of the Spirits, by the Chilean writer Isabel Allende. This path allowed us to conclude that magical realism collaborated with the resistance to the military dictatorships in Latin America and fulfills the function of constructing and preserving the collective memory of this historical period.

The Effects of Talking-Head with Various Realism Levels on Students' Emotions in Learning

Science.gov (United States)

Mohamad Ali, Ahmad Zamzuri; Hamdan, Mohd Najib

2017-01-01

The aim of this study was to evaluate the effects of various realistic levels of talking-head on students' emotions in pronunciation learning. Four talking-head characters with varying levels of realism were developed and tested: a nonrealistic three-dimensional character, a realistic three-dimensional character, a two-dimensional character, and…

Perang Enam Hari Arab Israel 1967 Menerusi Perspektif Teori Realisme

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MOHD IRWAN SYAZLI SAIDIN

2016-06-01

Full Text Available Realism approach has dominated the studies of world politics and international relations since the last of the World War II and until the start of the Cold War era. The focus of this study is to look into the factors that ignited the war other than identifying the policies or actions taken by the countries involved in the war. The question that arises lies in the extent to which the approach is able to explain the factors and actions taken by the leaders, to the point that it led to the 1967 war, and how this war can serve as guidance for our understanding of the Realism Theory. The objective of this study is to unravel the chains of events that had become the background of the 1967 Arab-Israeli War by concentrating on the root causes of the war and the policies of the countries involved, other than offering justification for the Realism Theory by looking closely into the characteristics, assumptions, and concepts under this approach. The methodology of this work employs document analysis and historical studies to obtain complete data. The analysis was carried out by applying the Arab-Israeli war events to the Realism Theory to prove that there is an association between the causes of the war and the theory through the analysis unit, key assumptions and substantial concepts contained in the Realism approach. The unit of analysis, which places the countries as the main actor in the international system, can be seen through the main role of Egypt, Jordan, Syria and Israel throughout the period of war. Concepts such as power, power balance, national interests, national sovereignty and self-help are also associated with the causes behind this war through a series of facts that have manifested themselves in the event

Conceptual Relativity Meets Realism in Metaphysics

Czech Academy of Sciences Publication Activity Database

Marvan, Tomáš

2016-01-01

Roč. 12, č. 2 (2016), s. 23-37 E-ISSN 1849-0514 Institutional support: RVO:67985955 Keywords : Hilary Putnam * conceptual relativity * realism * optional languages Subject RIV: AA - Philosophy ; Religion OBOR OECD: Philosophy, History and Philosophy of science and technology https://www.ffri.hr/phil/casopis/content.html

Realism and Impartiality: Making Sustainability Effective in Decision-Making.

Science.gov (United States)

Bastons, Miquel; Armengou, Jaume

2017-08-01

There is both individual and collective widespread concern in society about the impact of human activity and the effects of our decisions on the physical and social environment. This concern is included within the idea of sustainability. The meaning of the concept is still ambiguous and its practical effectiveness disputed. Like many other authors, this article uses as a starting point the definition proposed by the World Commission on Environment and Development (Our common future, Oxford University Press, Oxford, 1987), considering it to be a proposal for changing the assessment of the effects of decisions, from at least two perspectives: (1) what effects we should consider and (2) how we should assess them. Based on this double perspective, sustainability is explored as a method for decision-making which both expands the assessment of the consequences, and also provides an objective criterion for such assessment. It will be argued that the idea of sustainability, seen from this perspective, brings to decision-making two qualities which had been partially lost: realism and impartiality. In turn, the criteria for realism and impartiality in decision-making can be used to identify the limitations of some partial approaches to sustainability, which suffer from insufficient realism (emotional altruism), insufficient impartiality (tactical altruism) or both phenomena at once (egoism). The article concludes by demonstrating how realism and impartiality provide the basis for a new form of sustainable decision-making (ethical sustainability), which is dependent on the development of two moral virtues, prudence and benevolence, and which brings practical effectiveness and ethical sense to the concept of sustainability.

Normativity, moral realism, and unmasking explanations

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Josep CORBÍ

2010-01-01

Full Text Available In this paper, I argue that moral projectivism cannot be coherently fix the content of our moral responses. To this purpose, I develop a number of arguments against moral dispositionalism and, in this context, I challenge both David Lewis' dispositionalist account of colour and Chistine Korsgaard's procedural realism.

On Realism of Architectural Procedural Models

Czech Academy of Sciences Publication Activity Database

Beneš, J.; Kelly, T.; Děchtěrenko, Filip; Křivánek, J.; Müller, P.

2017-01-01

Roč. 36, č. 2 (2017), s. 225-234 ISSN 0167-7055 Grant - others:AV ČR(CZ) StrategieAV21/14 Program:StrategieAV Institutional support: RVO:68081740 Keywords : realism * procedural modeling * architecture Subject RIV: IN - Informatics, Computer Science OBOR OECD: Cognitive sciences Impact factor: 1.611, year: 2016

Are Naturalism and Moral Realism Compatible?

NARCIS (Netherlands)

Peels, H.D.

2014-01-01

In a recent paper, Alvin Plantinga has argued that there is good reason to think that naturalism and moral realism are incompatible. He has done so by arguing that the most important argument for the compatibility of these two theses, which has been provided by Frank Jackson, fails and that any

Magnitude, precision, and realism of depth perception in stereoscopic vision.

Science.gov (United States)

Hibbard, Paul B; Haines, Alice E; Hornsey, Rebecca L

2017-01-01

Our perception of depth is substantially enhanced by the fact that we have binocular vision. This provides us with more precise and accurate estimates of depth and an improved qualitative appreciation of the three-dimensional (3D) shapes and positions of objects. We assessed the link between these quantitative and qualitative aspects of 3D vision. Specifically, we wished to determine whether the realism of apparent depth from binocular cues is associated with the magnitude or precision of perceived depth and the degree of binocular fusion. We presented participants with stereograms containing randomly positioned circles and measured how the magnitude, realism, and precision of depth perception varied with the size of the disparities presented. We found that as the size of the disparity increased, the magnitude of perceived depth increased, while the precision with which observers could make depth discrimination judgments decreased. Beyond an initial increase, depth realism decreased with increasing disparity magnitude. This decrease occurred well below the disparity limit required to ensure comfortable viewing.

Denting the Hub, or Strengthening the Spokes? A Neoclassical Realism Analysis of New Security Trends in the Pacific

Science.gov (United States)

2009-06-01

Existing models of Neoclassical Realism, however, leave analysts to choose intervening traits in an ad hoc manner. This limits the theorys usefulness... Neoclassical Realism and the generalized intervening variable model developed in this thesis show usefulness beyond existing single- or multi-level theories ...weaknesses. Then, it proposes Neoclassical Realism, a modification of Realism, as an international relations theory that provides a useful model for foreign

Japanese maintenance centres strive for greater realism

International Nuclear Information System (INIS)

Nedderman, J.

1987-01-01

Japanese utilities have devoted considerable efforts to ensuring that realistic plant conditions are simulated at their maintenance centres. In some centres, eg that of Kansai Electric Power Co, realism extends to difficult access, limited lighting and restricted ventilation. (author)

Revised James M. Njihia Critical Realism & African development ...

African Journals Online (AJOL)

James M. Njihia

Critical realism, economic development, development policy, social science ... Positivism conceives of reality as knowable through objective methods of ..... use of statistical finance and mathematical (positive) economics that have been ...

European New Legal Realism and International Law:

DEFF Research Database (Denmark)

Holtermann, Jakob v. H.; Madsen, Mikael Rask

2015-01-01

complex analysis which takes legal validity seriously but as a genuinely empirical object of study. This article constructs this position by identifying a distinctively European realist path which takes as its primary inspirations Weberian sociology of law and Alf Ross’ Scandinavian Legal Realism...

Negentiende-eeuse Realisme: Hildebrand, Conscience, Cachet

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D. H. Steenberg

1990-05-01

Full Text Available To date literary historians have not reported extensively on the connection between Dutch and early Afrikaans prose texts of the nineteenth century. This paper endeavours to verify definite intertextual links between an Afrikaans prose text, “Die geldduiwel” (1882-1889 by Jan Lion Cachet and two comparable Flemish and Dutch texts, namely De geldduivel (1856 by Hendrik Conscience, and “De familie Kegge” (1839 by Hildebrand. The most important characteristics of nineteenth century Realism serve as basis for comparison. The resemblances extend far beyond the common themes exhibited by these texts and also include the tendency of artistic texts to approximate reality by representing a total and objective view of particular the bourgeois-centered orientation of the prose in general and the representation of a specific society in particular. The paper opens up a perspective on the mode of representation in prose during the period dominated by Realism, and also illustrates and defines the close relationship that existed between nineteenth century Dutch, Flemish and Afrikaans prose art.

Radical constructivism: Between realism and solipsism

Science.gov (United States)

Martínez-Delgado, Alberto

2002-11-01

This paper criticizes radical constructivism of the Glasersfeld type, pointing out some contradictions between the declared radical principles and their theoretical and practical development. These contradictions manifest themselves in a frequent oscillation between solipsism and realism, despite constructivist claims to be an anti-realist theory. The paper also points out the contradiction between the relativism of the radical constructivist principles and the constructivist exclusion of other epistemological or educational paradigms. It also disputes the originality and importance of the radical constructivist paradigm, suggesting the idea of an isomorphism between radical constructivist theory and contemplative realism. In addition, some pedagogical and scientific methodological aspects of the radical constructivist model are examined. Although radical constructivism claims to be a rational theory and advocates deductive thinking, it is argued that there is no logical deductive connection between the radical principles of constructivism and the radical constructivist ideas about scientific research and learning. The paper suggests the possibility of an ideological substratum in the construction and hegemonic success of subjective constructivism and, finally, briefly advances an alternative realist model to epistemological and educational radical constructivism.

Searle on External Realism and "Privileged Conceptual Scheme"

Czech Academy of Sciences Publication Activity Database

Marvan, Tomáš

2012-01-01

Roč. 19, Supp.2 (2012), s. 31-39 ISSN 1335-0668 Institutional support: RVO:67985955 Keywords : John Searle * external realism * constructivism * conceptual relativity * Privilege Conceptual Scheme Subject RIV: AA - Philosophy ; Religion

Labs and slabs: television crime drama and the quest for forensic realism.

Science.gov (United States)

Jermyn, Deborah

2013-03-01

This essay examines how crime dramas produced during, and since, the 1990s became marked by the quest for 'forensic realism'. In particular, the essay traces a landmark shift in the development of forensic realism in the form of the ground-breaking British police drama Prime Suspect in 1991. It is argued that this television series not only represents a turning point in television history, but that it also constitutes a key text in the broader cultural turn towards forensic fascination. Prime Suspect vividly revealed and displayed corpses, crime scenes and post-mortem photos in an unprecedented fashion for television. This essay shows how in the process it established new standards and expectations regarding the aesthetics and thematic content of the perceived 'realism' of the crime genre. Through an analysis of the reception and impact of Prime Suspect the essay also demonstrates how crime drama's increasing fascination with forensic realism has driven debate over just what kinds of stories and images constitute acceptable or appropriate subject matter for popular entertainment, and for the medium of television itself. Copyright © 2012. Published by Elsevier Ltd.

Realism and constructivism in social perception.

Science.gov (United States)

Kihlstrom, John F

2017-01-01

Jussim's critique of social psychology's embrace of error and bias is needed and often persuasive. In opting for perceptual realism over social constructivism, however, he seems to ignore a third choice - a cognitive constructivism which has a long and distinguished history in the study of nonsocial perception, and which enables us to understand both accuracy and error.

The Paradigm of Critical Realism: Approach to an Interdisciplinary Methodology

Directory of Open Access Journals (Sweden)

M. A. Tavana

2015-02-01

Full Text Available The debate of method of recognition in humanities, social and nature science is one of the apprehensions of Scientists in Wisdom Domain –especially in the modern world. This apprehension, before all things was of appearing in the paradigm of methodoligical between the advocates of the paradigms of positivism with having a share of the natural science. They used to values of naturalism in social and human studies. Additionally, testing and observation and repetition are present as the main terms of recognition. In front, the difference between human studies and natural science is important for the advocates of hermeneutic paradigm. Also, they speak about the methodology of interpretation (understanding of human and social phenomenon. But, in the second half of 20th century another paradigms was established as the Critical realism. This paradigm is tried to parther from the methodoloigcal binary and has a share from the recognition of ontological positivism and epistemological hermeneutics attain to a procedure of interdisciplinary about recognition. So, on the basis of this subject, this article mentioned this question that: would the critical realism receive as the methodology in interdisciplinary? Method of the Article is postulate. This article reasoned that multilayer ontology and epistemology redounded to multilayer methodology that could build up the knowledge of interdisciplinary.

Adding computationally efficient realism to Monte Carlo turbulence simulation

Science.gov (United States)

Campbell, C. W.

1985-01-01

Frequently in aerospace vehicle flight simulation, random turbulence is generated using the assumption that the craft is small compared to the length scales of turbulence. The turbulence is presumed to vary only along the flight path of the vehicle but not across the vehicle span. The addition of the realism of three-dimensionality is a worthy goal, but any such attempt will not gain acceptance in the simulator community unless it is computationally efficient. A concept for adding three-dimensional realism with a minimum of computational complexity is presented. The concept involves the use of close rational approximations to irrational spectra and cross-spectra so that systems of stable, explicit difference equations can be used to generate the turbulence.

Assessing the realism of colonoscopy simulation: the development of an instrument and systematic comparison of 4 simulators.

Science.gov (United States)

Hill, Andrew; Horswill, Mark S; Plooy, Annaliese M; Watson, Marcus O; Karamatic, Rozemary; Basit, Tabinda A; Wallis, Guy M; Riek, Stephan; Burgess-Limerick, Robin; Hewett, David G

2012-03-01

No useful comparative data exist on the relative realism of commercially available devices for simulating colonoscopy. To develop an instrument for quantifying realism and provide the first wide-ranging empiric comparison. Repeated measures, observational study. Nineteen experienced colonoscopists completed cases on 4 colonoscopy simulators (AccuTouch, GI Mentor II, Koken, and Kyoto Kagaku) and evaluated each device. A medical simulation center in a large tertiary hospital. For each device, colonoscopists completed the newly developed Colonoscopy Simulator Realism Questionnaire (CSRQ), which contains 58 items grouped into 10 subscales measuring the realism of different aspects of the simulation. Subscale scores are weighted and combined into an aggregated score, and there is also a single overall realism item. Overall, current colonoscopy simulators were rated as only moderately realistic compared with real human colonoscopy (mean aggregated score, 56.28/100; range, 48.39-60.45, where 0 = "extremely unrealistic" and 100 = "extremely realistic"). On both overall realism measures, the GI Mentor II was rated significantly less realistic than the AccuTouch, Kyoto Kagaku, and Koken (P realism. There is no clear "first choice" simulator among those assessed. Each has unique strengths and weaknesses, reflected in the differing results observed across 9 subscales. These findings may facilitate the targeted selection of simulators for various aspects of colonoscopy training. Copyright © 2012 American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc. All rights reserved.

Systems thinking, critical realism and philosophy a confluence of ideas

CERN Document Server

Mingers, John

2014-01-01

Systems Thinking, Critical Realism and Philosophy: A Confluence of Ideas seeks to re-address the whole question of philosophy and systems thinking for the twenty first century and provide a new work that would be of value to both systems and philosophy. This is a highly opportune time when different fields - critical realism, philosophy of science and systems thinking - are all developing around the same set of concepts and yet not realizing it. This book will be of interest to the academic systems community worldwide and due to it's interdisciplinary coverage, it will also

A non-local hidden-variable model that violates Leggett-type inequalities

Energy Technology Data Exchange (ETDEWEB)

Zela, F de [Departamento de Ciencias, Seccion Fisica, Pontificia Universidad Catolica del Peru, Apartado 1761, Lima (Peru)

2008-12-19

Recent experiments of Groeblacher et al proved the violation of a Leggett-type inequality that was claimed to be valid for a broad class of non-local hidden-variable theories. The impossibility of constructing a non-local and realistic theory, unless it entails highly counterintuitive features, seems thus to have been experimentally proved. This would bring us close to a definite refutation of realism. Indeed, realism was proved to be also incompatible with locality, according to a series of experiments testing Bell inequalities. The present paper addresses the said experiments of Groeblacher et al and presents an explicit, contextual and realistic, model that reproduces the predictions of quantum mechanics. It thus violates the Leggett-type inequality that was established with the aim of ruling out a supposedly broad class of non-local models. We can thus conclude that plausible contextual, realistic, models are still tenable. This restates the possibility of a future completion of quantum mechanics by a realistic and contextual theory which is not in a class containing only highly counterintuitive models. The class that was ruled out by the experiments of Groeblacher et al is thus proved to be a limited one, arbitrarily separating models that physically belong in the same class.

A non-local hidden-variable model that violates Leggett-type inequalities

International Nuclear Information System (INIS)

Zela, F de

2008-01-01

Recent experiments of Groeblacher et al proved the violation of a Leggett-type inequality that was claimed to be valid for a broad class of non-local hidden-variable theories. The impossibility of constructing a non-local and realistic theory, unless it entails highly counterintuitive features, seems thus to have been experimentally proved. This would bring us close to a definite refutation of realism. Indeed, realism was proved to be also incompatible with locality, according to a series of experiments testing Bell inequalities. The present paper addresses the said experiments of Groeblacher et al and presents an explicit, contextual and realistic, model that reproduces the predictions of quantum mechanics. It thus violates the Leggett-type inequality that was established with the aim of ruling out a supposedly broad class of non-local models. We can thus conclude that plausible contextual, realistic, models are still tenable. This restates the possibility of a future completion of quantum mechanics by a realistic and contextual theory which is not in a class containing only highly counterintuitive models. The class that was ruled out by the experiments of Groeblacher et al is thus proved to be a limited one, arbitrarily separating models that physically belong in the same class

Beyond the realism debate: The metaphysics of 'racial' distinctions.

Science.gov (United States)

Lemeire, Olivier

2016-10-01

The current metaphysical race debate is very much focused on the realism question whether races exist. In this paper I argue against the importance of this question. Philosophers, biologists and anthropologists expect that answering this question will tell them something substantive about the metaphysics of racial classifications, and will help them to decide whether it is justified to use racial categories in scientific research and public policy. I argue that there are two reasons why these expectations are not fulfilled. First of all, the realism question about race leads to a very broad philosophical debate about the semantics of general terms and the criteria for real kinds, rather than to a debate about the metaphysics of racial categories specifically. Secondly, there is a type of race realism that is so toothless that it is almost completely uninformative about the metaphysics of race. In response to these worries, I argue that the metaphysical race debate should rather be focused on the question in what way and to what extent 'racial' distinctions can ground the epistemic practices of various scientific disciplines. I spell out what I mean by this, and go on to demonstrate that trying to answer this question leads to a more fruitful metaphysical debate. Copyright © 2016 Elsevier Ltd. All rights reserved.

Idealism, Realism or ...? How We Dealt with China?

National Research Council Canada - National Science Library

Burkhard, Alfred

1998-01-01

... "Realism"? Either approach is possible - but at a cost that is difficult to predict. Perhaps our foreign policy approach to China, one that may be described as "Pragmatism" can serve as an example for future international affairs...

Subjective impression of differences in realism, source width, and orientation between auralizations created from multi-channel anechoic recordings

DEFF Research Database (Denmark)

Vigeant, Michelle C.; Wang, Lily M.; Rindel, Jens Holger

2005-01-01

in realism and source width. Auralizations were made using three different types of musical instruments: woodwinds (flute), brass (trombone) and strings (violin). Subjects were asked to rate each musical track on a seven-point scale for the degree of realism and source width. An analysis of variance (ANOVA......) was carried out to determine the differences between the number of channels and the effect of instrument. A second test was conducted to assess the degree of difficulty in detecting source orientation (facing the audience or facing the stage wall) depending on the number of channels (one, four or thirteen......) and the amount of absorption in the room. [Work supported by the National Science Foundation.]...

Critical Realism and Empirical Bioethics: A Methodological Exposition.

Science.gov (United States)

McKeown, Alex

2017-09-01

This paper shows how critical realism can be used to integrate empirical data and philosophical analysis within 'empirical bioethics'. The term empirical bioethics, whilst appearing oxymoronic, simply refers to an interdisciplinary approach to the resolution of practical ethical issues within the biological and life sciences, integrating social scientific, empirical data with philosophical analysis. It seeks to achieve a balanced form of ethical deliberation that is both logically rigorous and sensitive to context, to generate normative conclusions that are practically applicable to the problem, challenge, or dilemma. Since it incorporates both philosophical and social scientific components, empirical bioethics is a field that is consistent with the use of critical realism as a research methodology. The integration of philosophical and social scientific approaches to ethics has been beset with difficulties, not least because of the irreducibly normative, rather than descriptive, nature of ethical analysis and the contested relation between fact and value. However, given that facts about states of affairs inform potential courses of action and their consequences, there is a need to overcome these difficulties and successfully integrate data with theory. Previous approaches have been formulated to overcome obstacles in combining philosophical and social scientific perspectives in bioethical analysis; however each has shortcomings. As a mature interdisciplinary approach critical realism is well suited to empirical bioethics, although it has hitherto not been widely used. Here I show how it can be applied to this kind of research and explain how it represents an improvement on previous approaches.

Idealism, Realism or ...? How We Dealt with China?

National Research Council Canada - National Science Library

Burkhard, Alfred

1998-01-01

The demise of the bi-polar world left the United States with a dilemma. Should we proceed as the world's only super power and craft foreign policy based on the theory of "Liberal Internationalism" or that of "Realism...

Experimental control versus realism: methodological solutions for simulator studies in complex operating environments

Energy Technology Data Exchange (ETDEWEB)

Skraaning, Gyrd Jr.

2004-03-15

This report is a reprint of a dr.philos. thesis written by Gyrd Skraaning Jr. The text was submitted and accepted by the Norwegian University of Science and Technology in 2003 (ISBN 82-471-5237-1). The thesis suggests a nonlinear model of the theoretical relationship between experimental control and realism, claiming that high degrees of realism and experimental control can be obtained simultaneously if the experimental methods are utilized strategically and developed further. This is in opposition to the conventional opinion that realism and experimental control are mutually excluding objectives. The thesis debates the impact of the operating task on human performance during simulator studies in HAMMLAB, and suggests how task variation can be experimentally controlled. In a within subject design, every subject is tested under all experimental conditions, and the presentation order of the conditions is counterbalanced to compensate for order effects. In realistic settings, it is essential that the experimental design imposes few artificial constrains on the research environment. At the same time, the design should be able to uncover experimental effects in situations where the number of participants is low. Within-subject design represents a reasonable compromise between these aspirations. In this respect, an alternative counterbalancing method is proposed (dis-ORDER). A theoretical analysis of the human performance concept and a discussion about performance measurement in complex operating environments, are followed by a debate on the shortcomings of traditional performance indicators. Two specialized operator performance assessment techniques are then presented and evaluated (OPAS and ORT). (Author)

Experimental control versus realism: methodological solutions for simulator studies in complex operating environments

International Nuclear Information System (INIS)

Skraaning, Gyrd Jr.

2004-03-01

This report is a reprint of a dr.philos. thesis written by Gyrd Skraaning Jr. The text was submitted and accepted by the Norwegian University of Science and Technology in 2003 (ISBN 82-471-5237-1). The thesis suggests a nonlinear model of the theoretical relationship between experimental control and realism, claiming that high degrees of realism and experimental control can be obtained simultaneously if the experimental methods are utilized strategically and developed further. This is in opposition to the conventional opinion that realism and experimental control are mutually excluding objectives. The thesis debates the impact of the operating task on human performance during simulator studies in HAMMLAB, and suggests how task variation can be experimentally controlled. In a within subject design, every subject is tested under all experimental conditions, and the presentation order of the conditions is counterbalanced to compensate for order effects. In realistic settings, it is essential that the experimental design imposes few artificial constrains on the research environment. At the same time, the design should be able to uncover experimental effects in situations where the number of participants is low. Within-subject design represents a reasonable compromise between these aspirations. In this respect, an alternative counterbalancing method is proposed (dis-ORDER). A theoretical analysis of the human performance concept and a discussion about performance measurement in complex operating environments, are followed by a debate on the shortcomings of traditional performance indicators. Two specialized operator performance assessment techniques are then presented and evaluated (OPAS and ORT). (Author)

Realisme, teatralitet, ritual

DEFF Research Database (Denmark)

Petersen, Anne Ring

2008-01-01

, and that they are characterised by a heightened awareness as to the physical, subjective and temporal aspects of the viewer's experience.  Moreover, it argues that the elements mentioned in the title "Realism, theatricality, ritual" are key characteristics of this genre. It demonstrates this by using a range of different works......The ambition of this article is to define what characterises installation art in general: It proposes that basically installations organise the work of art as a space and activate this space, that they extend the work temporally so that it acquires a situational aspect...... by Mike Kelley, Guillaume Bijl, Anette Messager, Carsten Höller and other artists as examples. The book is published in two editions, one in Danish and one in English....

Realism, theatricality, ritual

DEFF Research Database (Denmark)

Petersen, Anne Ring

2008-01-01

, and that they are characterised by a heightened awareness as to the physical, subjective and temporal aspects of the viewer's experience.  Moreover, it argues that the elements mentioned in the title "Realism, theatricality, ritual" are key characteristics of this genre. It demonstrates this by using a range of different works......The ambition of this article is to define what characterises installation art in general: It proposes that basically installations organise the work of art as a space and activate this space, that they extend the work temporally so that it acquires a situational aspect...... by Mike Kelley, Guillaume Bijl, Anette Messager, Carsten Höller and other artists as examples. The book is published in two editions, one in English and one in Danish....

Searching for realism, structure and agency in Actor Network Theory.

Science.gov (United States)

Elder-Vass, Dave

2008-09-01

Superficially, Actor Network Theory (ANT) and critical realism (CR) are radically opposed research traditions. Written from a realist perspective, this paper asks whether there might be a basis for finding common ground between these two traditions. It looks in turn at the questions of realism, structure, and agency, analysing the differences between the two perspectives and seeking to identify what each might learn from the other. Overall, the paper argues that there is a great deal that realists can learn from actor network theory; yet ANT remains stunted by its lack of a depth ontology. It fails to recognize the significance of mechanisms, and of their dependence on emergence, and thus lacks both dimensions of the depth that is characteristic of critical realism's ontology. This prevents ANT from recognizing the role and powers of social structure; but on the other hand, realists would do well to heed ANT's call for us to trace the connections through which structures are constantly made and remade. A lack of ontological depth also underpins ANT's practice of treating human and non-human actors symmetrically, yet this remains a valuable provocation to sociologists who neglect non-human entities entirely.

The normativity of clinical health care: perspectives on moral realism.

Science.gov (United States)

Nortvedt, Per

2012-06-01

The paper argues that a particular version of moral realism constitutes an important basis for ethics in medicine and health care. Moral realism is the position that moral value is a part of the fabric of relational and interpersonal reality. But even though moral values are subject to human interpretations, they are not themselves the sole product of these interpretations. Moral values are not invented but discovered by the subject. Moral realism argues that values are open to perception and experience and that moral subjectivity must be portrayed in how moral values are discovered and perceived by the human subject. Moral values may exist independent of the particular subject's interpretative evaluations as a part of reality. This epistemological point about normativity is particularly significant in medical care and in health care. The clinician perceives moral value in the clinical encounter in a way that is important for competent clinical understanding. Clinical understanding in medical care and health care bears on the encounter with moral values in the direct and embodied relations to patients, with their experiences of illness and their vulnerabilities. Good clinical care is then partly conditioned upon adequate understanding of such moral realities.

Piloting Augmented Reality Technology to Enhance Realism in Clinical Simulation.

Science.gov (United States)

Vaughn, Jacqueline; Lister, Michael; Shaw, Ryan J

2016-09-01

We describe a pilot study that incorporated an innovative hybrid simulation designed to increase the perception of realism in a high-fidelity simulation. Prelicensure students (N = 12) cared for a manikin in a simulation lab scenario wearing Google Glass, a wearable head device that projected video into the students' field of vision. Students reported that the simulation gave them confidence that they were developing skills and knowledge to perform necessary tasks in a clinical setting and that they met the learning objectives of the simulation. The video combined visual images and cues seen in a real patient and created a sense of realism the manikin alone could not provide.

Improving the physiological realism of experimental models.

Science.gov (United States)

Vinnakota, Kalyan C; Cha, Chae Y; Rorsman, Patrik; Balaban, Robert S; La Gerche, Andre; Wade-Martins, Richard; Beard, Daniel A; Jeneson, Jeroen A L

2016-04-06

The Virtual Physiological Human (VPH) project aims to develop integrative, explanatory and predictive computational models (C-Models) as numerical investigational tools to study disease, identify and design effective therapies and provide an in silico platform for drug screening. Ultimately, these models rely on the analysis and integration of experimental data. As such, the success of VPH depends on the availability of physiologically realistic experimental models (E-Models) of human organ function that can be parametrized to test the numerical models. Here, the current state of suitable E-models, ranging from in vitro non-human cell organelles to in vivo human organ systems, is discussed. Specifically, challenges and recent progress in improving the physiological realism of E-models that may benefit the VPH project are highlighted and discussed using examples from the field of research on cardiovascular disease, musculoskeletal disorders, diabetes and Parkinson's disease.

MMORPG escapism predicts decreased well-being: examination of gaming time, game realism beliefs, and online social support for offline problems.

Science.gov (United States)

Kaczmarek, Lukasz D; Drążkowski, Dariusz

2014-05-01

Massively multiplayer online role-playing game (MMORPG) escapists are individuals who indulge in the MMORPG environment to avoid real world problems. Though a relationship between escapism and deteriorated well-being has been established, little is known about particular pathways that mediate this relationship. In the current study, we examined this topic by testing an integrative model of MMORPG escapism, which includes game realism beliefs, gaming time, offline social support, and online social support for offline problems. MMORPG players (N=1,056) completed measures of escapist motivation, game realism beliefs, social support, well-being, and reported gaming time. The tested structural equation model had a good fit to the data. We found that individuals with escapist motivation endorsed stronger game realism beliefs and spent more time playing MMORPGs, which, in turn, increased online support but decreased offline social support. Well-being was favorably affected by both online and offline social support, although offline social support had a stronger effect. The higher availability of online social support for offline problems did not compensate for the lower availability of offline support among MMORPG escapists. Understanding the psychological factors related to depletion of social resources in MMORPG players can help optimize MMORPGs as leisure activities.

Realism and Romance: The Study of Media Effects.

Science.gov (United States)

Tuchman, Gaye

1993-01-01

Compares and contrasts two studies representing diametrical approaches (Romanticism versus Realism) toward the issue of agency and media effects: P. Willis's "Common Culture" and W. A. Gamson's "Talking Politics." Argues that both studies find that people make their own uses of media. (SR)

Depressive Realism and Outcome Density Bias in Contingency Judgments: The Effect of the Context and Intertrial Interval

Science.gov (United States)

Msetfi, Rachel M.; Murphy, Robin A.; Simpson, Jane; Kornbrot, Diana E.

2005-01-01

The perception of the effectiveness of instrumental actions is influenced by depressed mood. Depressive realism (DR) is the claim that depressed people are particularly accurate in evaluating instrumentality. In two experiments, the authors tested the DR hypothesis using an action-outcome contingency judgment task. DR effects were a function of…

Reducing consistency in human realism increases the uncanny valley effect; increasing category uncertainty does not.

Science.gov (United States)

MacDorman, Karl F; Chattopadhyay, Debaleena

2016-01-01

Human replicas may elicit unintended cold, eerie feelings in viewers, an effect known as the uncanny valley. Masahiro Mori, who proposed the effect in 1970, attributed it to inconsistencies in the replica's realism with some of its features perceived as human and others as nonhuman. This study aims to determine whether reducing realism consistency in visual features increases the uncanny valley effect. In three rounds of experiments, 548 participants categorized and rated humans, animals, and objects that varied from computer animated to real. Two sets of features were manipulated to reduce realism consistency. (For humans, the sets were eyes-eyelashes-mouth and skin-nose-eyebrows.) Reducing realism consistency caused humans and animals, but not objects, to appear eerier and colder. However, the predictions of a competing theory, proposed by Ernst Jentsch in 1906, were not supported: The most ambiguous representations-those eliciting the greatest category uncertainty-were neither the eeriest nor the coldest. Copyright © 2015 The Authors. Published by Elsevier B.V. All rights reserved.

Children's Perceived Realism of Family Television Series.

Science.gov (United States)

Rabin, Beth E.; And Others

This study examined the influence of grade level, program content, and ethnic match between viewer and television characters on children's perceptions of the realism of families portrayed in television series. In the 1986-87 school year, a sample of 1,692 children in 2nd, 5th, and 10th grades completed a 13-item questionnaire measuring their…

Realism and Relativism in the Development of Nursing as a Discipline.

Science.gov (United States)

Hirani, Shela Akbar Ali; Richter, Solina; Salami, Bukola Oladunni

In today's era of nursing, the role of a unique disciplinary knowledge that is grounded in philosophy is essential to inform nursing practice, fill knowledge gaps, improve the quality of nursing education, and guide the theoretical development of nursing. Realism and relativism have contributed to the development of the nursing discipline by providing the basis of evidence-based nursing practice, nursing research, nursing education, and theoretical construction. This article explores the role of realism and relativism in the development of the discipline of nursing and presents their contributions to the work of nurse clinicians, nurse researchers, nurse educators, and nurse theorists.

Realism on the rocks: Novel success and James Hutton's theory of the earth.

Science.gov (United States)

Rossetter, Thomas

2018-02-01

In this paper, I introduce a new historical case study into the scientific realism debate. During the late-eighteenth century, the Scottish natural philosopher James Hutton made two important successful novel predictions. The first concerned granitic veins intruding from granite masses into strata. The second concerned what geologists now term "angular unconformities": older sections of strata overlain by younger sections, the two resting at different angles, the former typically more inclined than the latter. These predictions, I argue, are potentially problematic for selective scientific realism in that constituents of Hutton's theory that would not be considered even approximately true today played various roles in generating them. The aim here is not to provide a full philosophical analysis but to introduce the case into the debate by detailing the history and showing why, at least prima facie, it presents a problem for selective realism. First, I explicate Hutton's theory. I then give an account of Hutton's predictions and their confirmations. Next, I explain why these predictions are relevant to the realism debate. Finally, I consider which constituents of Hutton's theory are, according to current beliefs, true (or approximately true), which are not (even approximately) true, and which were responsible for these successes. Copyright © 2017 The Author. Published by Elsevier Ltd.. All rights reserved.

Perceived learning outcome: the relationship between experience, realism and situation awareness during simulator training.

Science.gov (United States)

Saus, Evelyn-Rose; Johnsen, Bjørn Helge; Eid, Jarle

2010-01-01

Navigation errors are a frequent cause of serious accidents and work-related injuries among seafarers. The present study investigated the effects of experience, perceived realism, and situation awareness (SA) on the perceived learning outcome of simulator-based navigation training. Thirty-two Norwegian Navy officer cadets were assigned to a low and a high mental workload conditions based on previous educational and navigational experience. In the low mental workload condition, experience (negatively associated), perceived realism, and subjective SA explained almost half of the total variance in perceived learning outcome. A hierarchical regression analysis showed that only subjective SA made a unique contribution to the learning outcome. In the high mental workload condition, perceived realism and subjective SA together explained almost half of the variance in perceived learning outcome. Furthermore, both perceived realism and subjective SA were shown to make an independent contribution to perceived learning outcomes. The results of this study show that in order to enhance the learning outcomes from simulator training it is necessary to design training procedures and scenarios that enable students to achieve functional fidelity and to generate and maintain SA during training. This can further improve safety and reduce the risk of maritime disasters.

Get real: how current behavior influences perceptions of realism and behavioral intent for public service announcements.

Science.gov (United States)

Nelson, Michelle R; Zhu, Xuan; Li, Yingying; Fiese, Barbara; Koester, Brenda

2015-01-01

This research examined how realism and current behavior influence message reception and processing for public service announcements (PSAs) designed to help parents with meal planning. Findings from 19 in-depth interviews revealed that the perceived realism of the message, the similarity, and the wishful identification with informants' lives influenced message acceptance, in line with the Message Interpretation Process (MIP) model. Results of an online survey with mothers show that realism matters more for those individuals who already engage in the featured behavior. In line with theory, "experts" (meal planners) show increased behavioral intent of the featured behaviors when viewing the more realistic PSA.

Three Forms of Neuro-Realism: Explaining the Persistence of the "Uncritically Real" in Popular Neuroscience News

Science.gov (United States)

Gruber, David R.

2017-01-01

Neuro-realism is a widely cited concept describing a textual phenomenon in popular science news wherein brain research uncritically validates or invalidates the "realness" of particular beliefs or practices. Currently, no research on neuro-realism examines the variable rhetorical roles of such statements, that is, how they support…

Predicting the ungauged basin : Model validation and realism assessment

NARCIS (Netherlands)

Van Emmerik, T.H.M.; Mulder, G.; Eilander, D.; Piet, M.; Savenije, H.H.G.

2015-01-01

The hydrological decade on Predictions in Ungauged Basins (PUB) led to many new insights in model development, calibration strategies, data acquisition and uncertainty analysis. Due to a limited amount of published studies on genuinely ungauged basins, model validation and realism assessment of

Predicting the ungauged basin: model validation and realism assessment

NARCIS (Netherlands)

van Emmerik, Tim; Mulder, Gert; Eilander, Dirk; Piet, Marijn; Savenije, Hubert

2015-01-01

The hydrological decade on Predictions in Ungauged Basins (PUB) led to many new insights in model development, calibration strategies, data acquisition and uncertainty analysis. Due to a limited amount of published studies on genuinely ungauged basins, model validation and realism assessment of

Magic Realism, Neurodiversity, and Carnivalesque in James McBride’s Song Yet Sung

Directory of Open Access Journals (Sweden)

Yuan-Chin Chang

2016-04-01

Full Text Available This paper considers James McBride’s novel Song Yet Sung through multiple lenses – Bakhtin’s Carnivalesque, magic realism and performativity as it relates to race and gender identities. It is considered how the character of the “Dreamer” can be read clinically as suffering the sequelae of a traumatic brain injury. Her symptoms, which include future hallucinations or prophecies, can be read as neurological symptoms of her multiple head injuries documented in the novel. Connected to this reading, the influence of magic realism is considered, particularly as it relates to the natural imagery and symbolism in the novel. The importance of birds, in particular, is considered. Carnivalesque as conceptualized by Bakhtin is also considered in the context of “magical” thinking and reading, and its connections to social subversion; this is considered in relation to the era of slavery, its legacy, and associated issues of gender and race. Keywords: Carnivalesque, Magic Realism, Prophecy, Gender Performance, Racial Performativity, Identity Performance

Geophysics, realism, and industry how commercial interests shaped geophysical conceptions, 1900–1960

CERN Document Server

Anduaga, Aitor

2016-01-01

Have industry and commerce affected the concepts, values, and epistemic foundations of different sciences? If so, how and to what extent? This book suggests that the most significant influence of industry on science, in the two case studies treated here, had to do with the issue of realism. These two cases deal with the elucidation of the layers of the upper atmosphere and the Earth’s crust. Using wave propagation as the common thread, this book simultaneously analyses the emergence of realist attitudes towards the entities of the ionosphere and the Earth’s crust. However, what was it that led physicists and engineers to adopt realist attitudes? This book suggests that a new kind of realism—one with social and cultural origins—is the answer: a preliminary, entity realism responding to specific commercial and engineering interests; i.e. a realism that was neither strictly instrumental nor exclusively operational. The book has two parts: while Part I focuses on the study of the ionosphere and how the Br...

Nosology, ontology and promiscuous realism.

Science.gov (United States)

Binney, Nicholas

2015-06-01

Medics may consider worrying about their metaphysics and ontology to be a waste of time. I will argue here that this is not the case. Promiscuous realism is a metaphysical position which holds that multiple, equally valid, classification schemes should be applied to objects (such as patients) to capture different aspects of their complex and heterogeneous nature. As medics at the bedside may need to capture different aspects of their patients' problems, they may need to use multiple classification schemes (multiple nosologies), and thus consider adopting a different metaphysics to the one commonly in use. © 2014 John Wiley & Sons, Ltd.

Reparation, slavery and political realism: The challenge of ...

African Journals Online (AJOL)

In agreeing with the moral validity of the claims, the paper probes further in a realistic manner and argue that African states in their present situation cannot make a serious case for reparation. The paper argues further that for African states to position themselves for genuine reparation struggles in this age of political realism, ...

"Depressive Realism" assessed via Confidence in Decision-making.

Science.gov (United States)

Hancock, J A

1996-08-01

There are two currently influential views regarding the link between cognitive distortions and depression. The first states that depressed individuals perceive the world and themselves with a strong negative bias or distortion, and that mentally healthy individuals perceive the word with relative accuracy. The second ''depressive realism'' camp argues that healthy individuals are positively biased and the depressed are relatively unbiased and hence, more realistic. In the present investigation, subjects suffering from major depression, subjects recovered from major depression, and a group of healthy controls were examined with regard to their confidence in answering each of 99 general knowledge questions. Confidence ratings were analysed separately according to correct or incorrect responses. There were no significant differences in performance (i.e. accuracy of answer between the three groups). When answering correctly, depressed subjects were significantly less confident than healthy control subjects. On answering incorrectly, none of the three groups were significantly different in their confidence ratings. These findings support the cognitive distortion view of depression and provide no evidence of ''depressive realism''.

Realism under Hegemony: Theorizing the Rise of Brazil

Directory of Open Access Journals (Sweden)

Kurt Weyland

2016-01-01

Full Text Available What light can international relations theory shed on how developing countries such as Brazil have achieved regional leadership and international influence? This comprehensive examination of Brazilian foreign policy over the last few decades argues that Realism provides a better account of Brazil’s strategy than Liberalism and Constructivism. Despite changes of government and regime, Brasília has persistently pursued relative political gain, especially international influence. However, because this rising country has faced an established hegemon in the form of the United States, it has not been able to employ conventionally Realist instruments and tactics. Its subordinate position in the current power constellation has forced Brazil to forego political or military confrontation and instead use economic cooperation, both with the hegemon and its weaker neighbors. Through this collaboration, Brazil hopes to derive disproportionate benefits that will enhance its relative power. By elucidating these complex calculations, the present essay explains the Realist strategy that ambitious nations such as Brazil have pursued and helps design a version of Realism that captures recent power dynamics in the international system.

Can virtual reality increase the realism of role plays used to teach college women sexual coercion and rape-resistance skills?

Science.gov (United States)

Jouriles, Ernest N; McDonald, Renee; Kullowatz, Antje; Rosenfield, David; Gomez, Gabriella S; Cuevas, Anthony

2009-12-01

The present study evaluated whether virtual reality (VR) can enhance the realism of role plays designed to help college women resist sexual attacks. Sixty-two female undergraduate students were randomly assigned to either the Role Play (RP) or Virtual Role Play (VRP) conditions, which were differentiated only by the use of VR technology in the VRP condition. A multimethod assessment strategy was used to evaluate the effects of VR on the experienced realism of sexually threatening role plays. Realism was assessed by participant self-reports of negative affect and perceptions of realism, direct observation of participants' verbal displays of negative affect during the role plays, and measurements of participant heart rate during the role plays. Results indicated that VR can indeed heighten the realism of sexually threatening role plays. Discussion focuses on issues regarding the use of VR-enhanced role plays for helping college women resist sexual attacks.

Costs and benefits of realism and optimism

OpenAIRE

Bortolotti, Lisa; Antrobus, Magdalena

2015-01-01

Purpose of review What is the relationship between rationality and mental health? By considering the psychological literature on depressive realism and unrealistic optimism, it was hypothesized that, in the context of judgments about the self, accurate cognitions are psychologically maladaptive and inaccurate cognitions are psychologically adaptive. Recent studies recommend being cautious in drawing any general conclusion about the style of thinking and mental health. Recent findings Recent i...

An Exploration of Adolescents' Perceptions of Videogame Realism

Science.gov (United States)

Malliet, Steven

2006-01-01

An attempt is made to translate the concept of perceived realism from the domain of general media studies to the domain of videogame studies. In order to make such a translation, a thorough knowledge and integration is required of the simulation aspects that distinguish videogames from older media such as film or television. The different meanings…

Visual Realism and Presence in a Virtual Reality Game

DEFF Research Database (Denmark)

Hvass, Jonatan Salling; Larsen, Oliver Stevns; Vendelbo, Kasper Bøgelund

2017-01-01

Virtual Reality (VR) has finally entered the homes of consumers, and a large number of the available applications are games. This paper presents a between-subjects study (n=50) exploring if vi-sual realism (polygon count and texture resolution) affects pres-ence during a scenario involving gameplay...

Appreciation of Igbo Folktales and Songs Versus Realism | Ogbalu ...

African Journals Online (AJOL)

Igbo folktales are fiction. Folktales are regarded as fictitious, senseless and totally devoid of truth and reality and totally removed from real life situation and events. Nevertheless in their functionality, one discovers that folktales exhibit some elements of truth that somehow translate them into realism and true life situation.

Huntington Revisited: Is Conservative Realism Still Essential for the Military Ethic

National Research Council Canada - National Science Library

Mahoney-Norris, Kathleen A

2001-01-01

...). Furthermore, Huntington has developed what appears to be a powerful argument as to why conservative realism should be considered a fundamental component of the professional ethic of the military officer...

Pragmatic critical realism: could this methodological approach expand our understanding of employment relations?

Science.gov (United States)

Mearns, Susan Lesley

2011-01-01

This paper seeks to highlight the need for employment relations academics and researchers to expand their use of research methodologies in order for them to enable the advancement of theoretical debate within their discipline. It focuses on the contribution that pragmatical critical realism has made to the field of perception and argues that it would add value to the subject of employment relations. It is a theoretically centred review of pragmatical critical realism and the possible contribution this methodology would make to the field of employment relations. The paper concludes that the employment relationship does not take place in a vacuum rather it is focussed on the interaction between imperfect individuals. Therefore, their interactions are moulded by emotions which can not be explored thoroughly or even acknowledged through a positivists' rigorous but limited acknowledgment of what constitutes 'knowledge' and development of theory. While not rejecting the contribution that quantitative data or positivism have made to the field, the study concludes that pragmatic critical realism has a lot to offer the development of the area and its theoretical foundations.

Perception of realism during mock resuscitations by pediatric housestaff: the impact of simulated physical features.

Science.gov (United States)

Donoghue, Aaron J; Durbin, Dennis R; Nadel, Frances M; Stryjewski, Glenn R; Kost, Suzanne I; Nadkarni, Vinay M

2010-02-01

Physical signs that can be seen, heard, and felt are one of the cardinal features that convey realism in patient simulations. In critically ill children, physical signs are relied on for clinical management despite their subjective nature. Current technology is limited in its ability to effectively simulate some of these subjective signs; at the same time, data supporting the educational benefit of simulated physical features as a distinct entity are lacking. We surveyed pediatric housestaff as to the realism of scenarios with and without simulated physical signs. Residents at three children's hospitals underwent a before-and-after assessment of performance in mock resuscitations requiring Pediatric Advanced Life Support (PALS), with a didactic review of PALS as the intervention between the assessments. Each subject was randomized to a simulator with physical features either activated (simulator group) or deactivated (mannequin group). Subjects were surveyed as to the realism of the scenarios. Univariate analysis of responses was done between groups. Subjects in the high-fidelity group were surveyed as to the relative importance of specific physical features in enhancing realism. Fifty-one subjects completed all surveys. Subjects in the high-fidelity group rated all scenarios more highly than low-fidelity subjects; the difference achieved statistical significance in scenarios featuring a patient in asystole or pulseless ventricular tachycardia (P realism. PALS scenarios were rated as highly realistic by pediatric residents. Slight differences existed between subjects exposed to simulated physical features and those not exposed to them; these differences were most pronounced in scenarios involving pulselessness. Specific physical features were rated as more important than others by subjects. Data from these surveys may be informative in designing future simulation technology.

Realism and Antirealism in Informational Foundations of Quantum Theory

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Tina Bilban

2014-08-01

Full Text Available Zeilinger-Brukner's informational foundations of quantum theory, a theory based on Zeilinger's foundational principle for quantum mechanics that an elementary system carried one bit of information, explains seemingly unintuitive quantum behavior with simple theoretical framework. It is based on the notion that distinction between reality and information cannot be made, therefore they are the same. As the critics of informational foundations of quantum theory show, this antirealistic move captures the theory in tautology, where information only refers to itself, while the relationships outside the information with the help of which the nature of information would be defined are lost and the questions "Whose information? Information about what?" cannot be answered. The critic's solution is a return to realism, where the observer's effects on the information are neglected. We show that radical antirealism of informational foundations of quantum theory is not necessary and that the return to realism is not the only way forward. A comprehensive approach that exceeds mere realism and antirealism is also possible: we can consider both sources of the constraints on the information, those coming from the observer and those coming from the observed system/nature/reality. The information is always the observer's information about the observed. Such a comprehensive philosophical approach can still support the theoretical framework of informational foundations of quantum theory: If we take that one bit is the smallest amount of information in the form of which the observed reality can be grasped by the observer, we can say that an elementary system (grasped and defined as such by the observer correlates to one bit of information. Our approach thus explains all the features of the quantum behavior explained by informational foundations of quantum theory: the wave function and its collapse, entanglement, complementarity and quantum randomness. However, it does

Realism, Absence and the Man Booker Shortlist: Damon Galgut's ...

African Journals Online (AJOL)

The Good Doctor by Damon Galgut was widely received as a text typifying the South African tradition of politically engaged realism, and its favourable reception was based to some degree on this perception. However, the novel projects apartheid-era literary tropes into a representation of a post-apartheid society; ...

The effect of an olfactory and visual cue on realism and engagement in a health care simulation experience.

Science.gov (United States)

Nanji, Karen C; Baca, Kirsten; Raemer, Daniel B

2013-06-01

Fidelity has been identified as an important element in a subject's perception of realism and engagement in learning during a simulation experience. The purpose of this study was to determine whether an isolated visual and olfactory sensory change to the simulation environment affects the subjects' perceptions of realism during simulation cases. Using an electrosurgical unit applied to bovine muscle tissue, we created a model to simulate the characteristic operating room smoke and burning odor that occur during many procedures. Anesthesiologist subjects were randomly assigned to an intervention group that participated in a simulation involving the characteristic smoke and odor or a control group whose simulation involved no smoke or odor. Subjects completed a 7-question survey on the fidelity of the simulation, their perception of realism, and their learning engagement. We enrolled 103 subjects over 22 simulation courses in our study (intervention, n = 52; control, n = 51). The subjects' reactions to the physical (P = 0.73), conceptual (P = 0.34), and emotional (P = 0.12) fidelity and their perception of realism (P = 0.71) did not differ between the intervention and control groups. In a high-fidelity simulation environment, a visual and olfactory increment to physical fidelity did not affect subjects' overall ratings of fidelity, perceptions of realism, and engagement in the learning experience.

Shifting to structures in physics and biology: a prophylactic for promiscuous realism.

Science.gov (United States)

French, Steven

2011-06-01

Within the philosophy of science, the realism debate has been revitalised by the development of forms of structural realism. These urge a shift in focus from the object oriented ontologies that come and go through the history of science to the structures that remain through theory change. Such views have typically been elaborated in the context of theories of physics and are motivated by, first of all, the presence within such theories of mathematical equations that allow straightforward representation of the relevant structures; and secondly, the implications of such theories for the individuality and identity of putative objects. My aim in this paper is to explore the possibility of extending such views to biological theories. An obvious concern is that within the context of the latter it is typically insisted that we cannot find the kinds of highly mathematised structures that structural realism can point to in physics. I shall indicate how the model-theoretic approach to theories might help allay such concerns. Furthermore, issues of identity and individuality also arise within biology. Thus Dupré has recently noted that there exists a 'General Problem of Biological Individuality' which relates to the issue of how one divides 'massively integrated and interconnected' systems into discrete components. In response Dupré advocates a form of 'Promiscuous Realism' that holds, for example, that there is no unique way of dividing the phylogenetic tree into kinds. Instead I shall urge serious consideration of those aspects of the work of Dupré and others that lean towards a structuralist interpretation. By doing so I hope to suggest possible ways in which a structuralist stance might be extended to biology. Copyright © 2010 Elsevier Ltd. All rights reserved.

Improving the visual realism of virtual surgery.

Science.gov (United States)

Jin, Wei; Lim, Yi-Je; Xu, Xie George; Singh, Tejinder P; De, Suvranu

2005-01-01

In this work we focus our attention on improving the visual realism of virtual surgery. A synthetic solution by innovative use of various image-based rendering methods is presented for realistic rendering of virtual surgery scenes. We have, for the first time, developed a methodology for generating virtual surgery scenes with realistic glistening effects by a combination of various image-based rendering techniques, including image mosaicing and view-dependent texture mapping. Realistic examples are presented to showcase the results.

Scientific realism in particle physics a causal approach

CERN Document Server

Egg, Matthias

2014-01-01

Does particle physics really describe the basic constituents of the material world or is it just a useful tool for deriving empirical predictions? This book proposes a novel answer to that question, emphasizing the importance of causal reasoning for the justification of scientific claims. It thereby responds to general worries about scientific realism as well as to more specific challenges stemming from the interpretation of quantum physics.

Teori Imperialisme Baru dan Debat Marxisme-Realisme dalam Ilmu Hubungan Internasional

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Rizky Alif Alvian

2016-05-01

Full Text Available This paper aims to discuss the contribution of new imperialism theory for International Relations. This contribution will be analyzed by positing new imperialism theory in the light of Marxism-Realism debate. This debate is centered on the question on how the relation between state and mode of production should be formulated. While Realism tends to underestimate the role of mode of production in international relations, Marxism tends to underestimate the role of state. This paper argues that new imperialism theory could be understood as an experiment to resolve this issue. By separating “economy”/”the logic of capitalism” from “politic”/”the logic of territorial”, new imperialism theory attempts to reconcile the role of state and mode of production in the analysis of international relations.

Depressive realism and outcome density bias in contingency judgments: the effect of the context and intertrial interval

OpenAIRE

Msetfi, Rachel M.; Murphy, Robin, A.; Simpson, Jane; Kornbrot, Diana E.

2005-01-01

peer-reviewed The perception of the effectiveness of instrumental actions is influenced by depressed mood. Depressive realism (DR) is the claim that depressed people are particularly accurate in evaluating instrumentality. In two experiments, the authors tested the DR hypothesis using an action–outcome contingency judgment task. DR effects were a function of intertrial interval length and outcome density, suggesting that depressed mood is accompanied by reduced contextual processing rather...

Realisme en representasie in wetenskap en literatuur

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M. E. Botha

1990-05-01

Full Text Available Although there are important areas of overlap, the problem of realism differs in the contexts of philosophy, science and literature. What is common to all three realms is the fact that the empiricist notion of objectivity is not tenable any more. The recognition of the theory ladenness of scientific observation and the commentary ladenness of interpretation in literature is in fundamental contrast with the older views of objectivity which have dominated the scene for such a long time. The notion of realism inherent in this older view of objectivity in which science, philosophy or literature somehow “mirrors” the world, has fundamentally been affected by the overthrow of the objectivist tradition through developments in philosophy of science and developments in metaphor theory in which the emphasis on “literal” descriptions of reality have made way for the recognition of the relative distinction between the literal and the metaphorical. Both science and literature have acknowledged the possibility of a potential plurality of possible interpretations of “reality”. This means that as many “realities” exist as interpretations of reality and of texts are possible. This has confronted both science and literature with the need for a fundamentally revised notion of “realism” and of truth and has posed the very real problem of the (im-possibility of convergence toward truth, reality or the one and only “correct” interpretation.

Measurement contextuality is implied by macroscopic realism

International Nuclear Information System (INIS)

Chen Zeqian; Montina, A.

2011-01-01

Ontological theories of quantum mechanics provide a realistic description of single systems by means of well-defined quantities conditioning the measurement outcomes. In order to be complete, they should also fulfill the minimal condition of macroscopic realism. Under the assumption of outcome determinism and for Hilbert space dimension greater than 2, they were all proved to be contextual for projective measurements. In recent years a generalized concept of noncontextuality was introduced that applies also to the case of outcome indeterminism and unsharp measurements. It was pointed out that the Beltrametti-Bugajski model is an example of measurement noncontextual indeterminist theory. Here we provide a simple proof that this model is the only one with such a feature for projective measurements and Hilbert space dimension greater than 2. In other words, there is no extension of quantum theory providing more accurate predictions of outcomes and simultaneously preserving the minimal labeling of events through projective operators. As a corollary, noncontextuality for projective measurements implies noncontextuality for unsharp measurements. By noting that the condition of macroscopic realism requires an extension of quantum theory, unless a breaking of unitarity is invoked, we arrive at the conclusion that the only way to solve the measurement problem in the framework of an ontological theory is by relaxing the hypothesis of measurement noncontextuality in its generalized sense.

Magical Realism in Ahmad Sa'dawiy's Frankenstein fi Bagdad

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Mahmudah Mahmudah

2016-11-01

Full Text Available This article discusses the use of magic realism as a literary device in the Iraqi novel Frankenstein fī Bagdād written by Aḥmad Sa‘dāwiy. The novel is set in the period of inter-ethnic conflict which arose after the American invasion of 2003. Hādī, the main character of the novel, ‘creates a monster’ namely Syismah from the corpses of the many bomb victims in Baghdad. The writer combines setting of the novel with belief of the Iraq people, horoscope practice, and magic, in mystical and illogical atmosphere. Given its magic realist qualities, the analysis draws on the approach of Wendy B. Faris. The article identifies five key elements from magic realism present in the novel, and discusses the relationship between these elements in order to better understand the social, ideological, and political context of the novel. The analysis shows that there are relationships between two worlds: death and life, human and ghost, physical and metaphysical, natural and supernatural.

The ontology of quantum field theory: Structural realism vindicated?

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Glick, David

2016-10-01

In this paper I elicit a prediction from structural realism and compare it, not to a historical case, but to a contemporary scientific theory. If structural realism is correct, then we should expect physics to develop theories that fail to provide an ontology of the sort sought by traditional realists. If structure alone is responsible for instrumental success, we should expect surplus ontology to be eliminated. Quantum field theory (QFT) provides the framework for some of the best confirmed theories in science, but debates over its ontology are vexed. Rather than taking a stand on these matters, the structural realist can embrace QFT as an example of just the kind of theory SR should lead us to expect. Yet, it is not clear that QFT meets the structuralist's positive expectation by providing a structure for the world. In particular, the problem of unitarily inequivalent representations threatens to undermine the possibility of QFT providing a unique structure for the world. In response to this problem, I suggest that the structuralist should endorse pluralism about structure. Copyright © 2016 Elsevier Ltd. All rights reserved.

Trauma and Memory in Magical Realism: Eden Robinson’s Monkey Beach as Trauma Narrative

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Anja Mrak

2013-06-01

Full Text Available The fundamental characteristic of magical realism is its duality, which enables alternative representations of society and history. Its specific narrative devices make magical realism a viable form for rendering traumatic experience and memories. Monkey Beach (2000 by Eden Robinson, a member of the Haisla and Heiltsuk First Nations in Canada, is a repository of memories, triggered and fuelled by trauma. Fragmented temporality, mixing of discourses, shifts in focalization, wordplays, repetition, and the magical are some of the devices the novel uses to address the complex landscape of trauma and memory. By unveiling personal memories, Monkey Beach gives way to the unconscious to enter the narrative structure, gradually revealing a much larger issue of the mistreatment of the Haisla people in Canada—and the resulting collective trauma. As trauma cannot be integrated into the narrative, it can only be uncovered indirectly and through a double distancing: firstly through the techniques of magical realism, and secondly, through the seemingly detached point of view of the narrator, who ultimately realises that her life is also encumbered with the dark stain of colonialism.

"How much realism is needed?" - the wrong question in silico imagers have been asking.

Science.gov (United States)

Badano, Aldo

2017-05-01

To discuss the use of realism as a first approximation for assessing computational imaging methods. Although in silico methods are increasingly becoming promising surrogates to physical experimentation for various stages of device development, their acceptance remains challenging. Realism is often considered as a first approximation for assessing computational imaging methods. However, realism is subjective and does not always ensure that key features of the methodologies reflect relevant aspects of devices of interest to imaging scientists, regulators, and medical practitioners. Moreover, in some cases (e.g., in computerized image analysis applications where human interpretation is not needed) how realistic in silico images are is irrelevant and perhaps misleading. I emphasize a divergence from this methodology by providing a rationale for evaluating in silico imaging methods and tools in an objective and measurable manner. Improved approaches for in silico imaging will lead to the rapid advancement and acceptance of computational techniques in medical imaging primarily but not limited to the regulatory evaluation of new imaging products. Published 2017. This article is a U.S. Government work and is in the public domain in the USA.

Exploring the relationship between object realism and object-based attention effects.

Science.gov (United States)

Roque, Nelson; Boot, Walter R

2015-09-01

Visual attention prioritizes processing of locations in space, and evidence also suggests that the benefits of attention can be shaped by the presence of objects (object-based attention). However, the prevalence of object-based attention effects has been called into question recently by evidence from a large-sampled study employing classic attention paradigms (Pilz et al., 2012). We conducted two experiments to explore factors that might determine when and if object-based attention effects are observed, focusing on the degree to which the concreteness and realism of objects might contribute to these effects. We adapted the classic attention paradigm first reported by Egly, Driver, and Rafal (1994) by replacing abstract bar stimuli in some conditions with objects that were more concrete and familiar to participants: items of silverware. Furthermore, we varied the realism of these items of silverware, presenting either cartoon versions or photo-realistic versions. Contrary to predictions, increased realism did not increase the size of object-based effects. In fact, no clear object-based effects were observed in either experiment, consistent with previous failures to replicate these effects in similar paradigms. While object-based attention may exist, and may have important influences on how we parse the visual world, these and other findings suggest that the two-object paradigm typically relied upon to study object-based effects may not be the best paradigm to investigate these issues. Copyright © 2015 Elsevier B.V. All rights reserved.

’n Ondersoek na die kunstenaarskap in Die swye van Mario Salviati binne die konteks van die magiese realisme

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N. Botes

2006-07-01

Full Text Available An investigation into the nature of the artist in The long silence of Mario Salviati within the context of magic realism This article investigates the nature of the artist in “The long silence of Mario Salviati” (2000 within the context of magic realism. This novel by Etienne van Heerden is particularly interesting as the theme of art is directly intertwined with magic realism. The specific relationship between artistry and magic realism in “The long silence of Mario Salviati” has not been the focus of any particular study yet. Several artists in the novel will be analysed within the context of magic realism and according to magic realist characteristics to give an integrated perspective on style and theme. This investigation largely conjoins with the viewpoints of Faris (1995, although perspectives from other theorists are also taken as a point of departure. Some important characteristics of magic realist texts which are discussed within the context of artistry in “The long silence of Mario Salviati” are inter alia the co-existence of two worlds, doubts from the reader concerning the interpretation of events as realist or magical, the questioning of conventional ideas about time, space and identity, the anti-bureaucratic viewpoint and the focus on collective rather than individual memory.

ADDING ECOLOGICAL REALISM TO PLANT TESTING

Science.gov (United States)

Current test protocols for the protection of nontarget plants used when registering pesticides in the United States and many other countries depend on two tests using greenhouse grown, agricultural seedling plants. The seedling emergence and vegetative vigor tests are used to as...

Role of locality in Einstein-Podolsky-Rosen correlations and teleportation

International Nuclear Information System (INIS)

Treacy, P.B.

2003-01-01

Two-body systems with pure entangled wave functions are known not to satisfy local realism; that is, they display nonlocality. However, it is noted that the well-known conclusion of the EPR paradox that quantum mechanics is an incomplete theory is inconclusive, and that local quantum-mechanical calculations are sufficient to explain two-body correlations. Such correlations are commonly attributed to an instant nonlocal interaction, but that is neither required nor observable in a two-body system. However, nonlocal transmission could be directly detected in sequential three-body processes, and a test for this is proposed by the direct timing of the teleportation of a wave function. The result of this would help towards establishing a dynamical theory of teleportation

Beyond divine command theory: Moral realism in the Hebrew bible ...

African Journals Online (AJOL)

In this paper the author challenges the popular consensus with several arguments demonstrating the presence of moral realism in the text. It is furthermore suggested that the popular consensus came about as a result of prima facie assessments informed by anachronistic metatheistic assumptions about what the Hebrew ...

Post-indiginist realism in modern African drama | Ilo | UJAH: Unizik ...

African Journals Online (AJOL)

This paper highlights a literary style in which African dramatists compose in current diction and express themselves in a contemporary mode. The approach, identified in this essay as Post-indiginist Realism or Aesthetics, represents a departure from a celebrated method in which African dramatists privileged their culture or ...

'Montage, my fine care': realism, surrealism and postmodernism after Bazin

OpenAIRE

Fotiade, Ramona

2016-01-01

A re-appraisal of André Bazin's theory of cinematic realism, and of his contribution to postmodern conceptions of the image (Gilles Deleuze), in light of his relationship to Surrealism (Luis Bunuel), and of his influence on the New Wave ideology and practice (with particular reference to Jean-Luc Godard).

An Essay for Educators: Epistemological Realism Really is Common Sense

Science.gov (United States)

Cobern, William W.; Loving, Cathleen C.

2008-01-01

"What is truth?" Pontius Pilot asked Jesus of Nazareth. For many educators today this question seems quaintly passe. Rejection of "truth" goes hand-in-hand with the rejection of epistemological realism. Educational thought over the last decade has instead been dominated by empiricist, anti-realist, instrumentalist epistemologies of two types:…

Designing robot embodiments for social interaction: Affordances topple realism and aesthetics

NARCIS (Netherlands)

Paauwe, R.A.; Hoorn, J.F.; Konijn, E.A.; Keyson, D.V.

2015-01-01

In the near future, human-like social robots will become indispensable for providing support in various social tasks, in particular for healthcare (e.g., assistance, coaching). The perception of realism, in particular human-like features, can help facilitate mediated social interaction. The current

Designing Robot Embodiments for Social Interaction : Affordances Topple Realism and Aesthetics

NARCIS (Netherlands)

Paauwe, R.A.; Hoorn, J.F.; Konijn, E.A.; Keyson, D.V.

2015-01-01

In the near future, human-like social robots will become indispensable for providing support in various social tasks, in particular for healthcare (e.g., assistance, coaching). The perception of realism, in particular human-like features, can help facilitate mediated social interaction. The current

THE INTERSECTION OF INDEPENDENT LIES: INCREASING REALISM IN ECOLOGICAL RISK ASSESSMENT

Science.gov (United States)

In 1966, Levins presented a philosophical discussion on making inference about populations using clusters of models. In this article we provide an overview of model inference in ecological risk assessment, discuss the benefits and trade-offs of increasing model realism, show the...

Time perception and depressive realism: judgment type, psychophysical functions and bias.

Science.gov (United States)

Kornbrot, Diana E; Msetfi, Rachel M; Grimwood, Melvyn J

2013-01-01

The effect of mild depression on time estimation and production was investigated. Participants made both magnitude estimation and magnitude production judgments for five time intervals (specified in seconds) from 3 sec to 65 sec. The parameters of the best fitting psychophysical function (power law exponent, intercept, and threshold) were determined individually for each participant in every condition. There were no significant effects of mood (high BDI, low BDI) or judgment (estimation, production) on the mean exponent, n = .98, 95% confidence interval (.96-1.04) or on the threshold. However, the intercept showed a 'depressive realism' effect, where high BDI participants had a smaller deviation from accuracy and a smaller difference between estimation and judgment than low BDI participants. Accuracy bias was assessed using three measures of accuracy: difference, defined as psychological time minus physical time, ratio, defined as psychological time divided by physical time, and a new logarithmic accuracy measure defined as ln (ratio). The ln (ratio) measure was shown to have approximately normal residuals when subjected to a mixed ANOVA with mood as a between groups explanatory factor and judgment and time category as repeated measures explanatory factors. The residuals of the other two accuracy measures flagrantly violated normality. The mixed ANOVAs of accuracy also showed a strong depressive realism effect, just like the intercepts of the psychophysical functions. There was also a strong negative correlation between estimation and production judgments. Taken together these findings support a clock model of time estimation, combined with additional cognitive mechanisms to account for the depressive realism effect. The findings also suggest strong methodological recommendations.

Cinematic realism and digital special effects in Hollywood cinema

OpenAIRE

Güney, Tolga

1996-01-01

Ankara : Department of Graphic Design and Institute of Fine Arts, Bilkent Univ., 1996. Thesis (Master's) -- Bilkent University, 1996. Includes bibliographical refences. This thesis attempts to understand changing conceptions of realism in entertainment cinema by the emergence of digital special effects as an implication of new modes of production in contemporary Hollywood cinema. It focuses on the reflexive, intertextual, and hyperreal characteristics of contemporary Holl...

Realism, instrumentalism, and scientific symbiosis: psychological theory as a search for truth and the discovery of solutions.

Science.gov (United States)

Cacioppo, John T; Semin, Gün R; Berntson, Gary G

2004-01-01

Scientific realism holds that scientific theories are approximations of universal truths about reality, whereas scientific instrumentalism posits that scientific theories are intellectual structures that provide adequate predictions of what is observed and useful frameworks for answering questions and solving problems in a given domain. These philosophical perspectives have different strengths and weaknesses and have been regarded as incommensurate: Scientific realism fosters theoretical rigor, verifiability, parsimony, and debate, whereas scientific instrumentalism fosters theoretical innovation, synthesis, generativeness, and scope. The authors review the evolution of scientific realism and instrumentalism in psychology and propose that the categorical distinction between the 2 is overstated as a prescription for scientific practice. The authors propose that the iterative deployment of these 2 perspectives, just as the iterative application of inductive and deductive reasoning in science, may promote more rigorous, integrative, cumulative, and useful scientific theories.

The Problem of Scientific Realism Vis-a-Vis the Probabilistic ...

African Journals Online (AJOL)

Scientific realism holds that the objects of scientific knowledge exist independently of the minds or activities of scientists and those scientific theories are true of that objective world. This is antithetical to the posits of quantum physics, a body of knowledge taken as the seal of the sciences because of its incredible feat, which ...

Prediction, Regression and Critical Realism

DEFF Research Database (Denmark)

Næss, Petter

2004-01-01

This paper considers the possibility of prediction in land use planning, and the use of statistical research methods in analyses of relationships between urban form and travel behaviour. Influential writers within the tradition of critical realism reject the possibility of predicting social...... phenomena. This position is fundamentally problematic to public planning. Without at least some ability to predict the likely consequences of different proposals, the justification for public sector intervention into market mechanisms will be frail. Statistical methods like regression analyses are commonly...... seen as necessary in order to identify aggregate level effects of policy measures, but are questioned by many advocates of critical realist ontology. Using research into the relationship between urban structure and travel as an example, the paper discusses relevant research methods and the kinds...

On the realism of the re-engineered simple point charge water model

International Nuclear Information System (INIS)

Chialvo, A.A.

1996-01-01

The realism of the recently proposed high-temperature reparameterization of the simple point charge (SPC) water model [C. D. Berweger, W. F. van Gunsteren, and F. Mueller-Plathe, Chem. Phys. Lett. 232, 429 (1995)] is tested by comparing the simulated microstructure and dielectric properties to the available experimental data. The test indicates that the new parameterization fails dramatically to describe the microstructural and dielectric properties of water at high temperature; it predicts rather strong short-range site endash site pair correlations, even stronger than those for water at ambient conditions, and a threefold smaller dielectric constant. Moreover, the resulting microstructure suggests that the high-temperature force-field parameters would predict a twofold higher critical density. The failure of the high-temperature parameterization is analyzed and some suggestions on alternative choices of the target properties for the weak-coupling are discussed. copyright 1996 American Institute of Physics

Realism is not all! User engagement with task-related interface characters

NARCIS (Netherlands)

van Vugt, H.C.; Konijn, E.A.; Hoorn, J.F.; Eliëns, A.P.W.; Keur, I.

2007-01-01

Human-like characters in the interface may evoke social responses in users, and literature suggests that realism is the most important factor herein. However, the effects of interface characters on the user are not well understood. We developed an integrative framework, called I-PEFiC, to explain

Testing quantum behaviour at the macroscopic level

International Nuclear Information System (INIS)

Ghirardi, G.C.

1994-07-01

We reconsider recent proposals to test macro realism versus quantum mechanics in experiments involving noninvasive measurement processes on a Squid. In spite of the fact that we are able to prove that the proposed experiments do not represent a test of macro realism but simply of macroscopic quantum coherence we call attention to their extreme conceptual relevance. We also discuss some recent criticisms which have been raised against the considered proposal and we show that they are not relevant. (author). 12 refs

The material realization of science from Habermas to experimentation and referential realism

CERN Document Server

Radder, Hans

2012-01-01

This book develops a conception of science as a multi-dimensional practice, which includes experimental action and production, conceptual-theoretical interpretation, and formal-mathematical work. On this basis, it addresses the topical issue of scientific realism and expounds a detailed, referentially realist account of the natural sciences. This account is shown to be compatible with the frequent occurrence of conceptual discontinuities in the historical development of the sciences. Referential realism exploits several fruitful ideas of Jürgen Habermas, especially his distinction between objectivity and truth; it builds on a in-depth analysis of scientific experiments, including their material realization; and it is developed through an extensive case study in the history and philosophy of quantum mechanics. The new postscript explains how the book relates to several important issues in recent philosophy of science and science studies.

ATC-lab(Advanced): an air traffic control simulator with realism and control.

Science.gov (United States)

Fothergill, Selina; Loft, Shayne; Neal, Andrew

2009-02-01

ATC-lab(Advanced) is a new, publicly available air traffic control (ATC) simulation package that provides both realism and experimental control. ATC-lab(Advanced) simulations are realistic to the extent that the display features (including aircraft performance) and the manner in which participants interact with the system are similar to those used in an operational environment. Experimental control allows researchers to standardize air traffic scenarios, control levels of realism, and isolate specific ATC tasks. Importantly, ATC-lab(Advanced) also provides the programming control required to cost effectively adapt simulations to serve different research purposes without the need for technical support. In addition, ATC-lab(Advanced) includes a package for training participants and mathematical spreadsheets for designing air traffic events. Preliminary studies have demonstrated that ATC-lab(Advanced) is a flexible tool for applied and basic research.

Time perception and depressive realism: judgment type, psychophysical functions and bias.

Directory of Open Access Journals (Sweden)

Diana E Kornbrot

Full Text Available The effect of mild depression on time estimation and production was investigated. Participants made both magnitude estimation and magnitude production judgments for five time intervals (specified in seconds from 3 sec to 65 sec. The parameters of the best fitting psychophysical function (power law exponent, intercept, and threshold were determined individually for each participant in every condition. There were no significant effects of mood (high BDI, low BDI or judgment (estimation, production on the mean exponent, n = .98, 95% confidence interval (.96-1.04 or on the threshold. However, the intercept showed a 'depressive realism' effect, where high BDI participants had a smaller deviation from accuracy and a smaller difference between estimation and judgment than low BDI participants. Accuracy bias was assessed using three measures of accuracy: difference, defined as psychological time minus physical time, ratio, defined as psychological time divided by physical time, and a new logarithmic accuracy measure defined as ln (ratio. The ln (ratio measure was shown to have approximately normal residuals when subjected to a mixed ANOVA with mood as a between groups explanatory factor and judgment and time category as repeated measures explanatory factors. The residuals of the other two accuracy measures flagrantly violated normality. The mixed ANOVAs of accuracy also showed a strong depressive realism effect, just like the intercepts of the psychophysical functions. There was also a strong negative correlation between estimation and production judgments. Taken together these findings support a clock model of time estimation, combined with additional cognitive mechanisms to account for the depressive realism effect. The findings also suggest strong methodological recommendations.

Testing Local Independence between Two Point Processes

DEFF Research Database (Denmark)

Allard, Denis; Brix, Anders; Chadæuf, Joël

2001-01-01

Independence test, Inhomogeneous point processes, Local test, Monte Carlo, Nonstationary, Rotations, Spatial pattern, Tiger bush......Independence test, Inhomogeneous point processes, Local test, Monte Carlo, Nonstationary, Rotations, Spatial pattern, Tiger bush...

Improved realism of confidence for an episodic memory event

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Sandra Buratti

2012-09-01

Full Text Available We asked whether people can make their confidence judgments more realistic (accurate by adjusting them, with the aim of improving the relationship between the level of confidence and the correctness of the answer. This adjustment can be considered to include a so-called second-order metacognitive judgment. The participants first gave confidence judgments about their answers to questions about a video clip they had just watched. Next, they attempted to increase their accuracy by identifying confidence judgments in need of adjustment and then modifying them. The participants managed to increase their metacognitive realism, thus decreasing their absolute bias and improving their calibration, although the effects were small. We also examined the relationship between confidence judgments that were adjusted and the retrieval fluency and the phenomenological memory quality participants experienced when first answering the questions; this quality was one of either Remember (associated with concrete, vivid details or Know (associated with a feeling of familiarity. Confidence judgments associated with low retrieval fluency and the memory quality of knowing were modified more often. In brief, our results provide evidence that people can improve the realism of their confidence judgments, mainly by decreasing their confidence for incorrect answers. Thus, this study supports the conclusion that people can perform successful second-order metacognitive judgments.

The JPL Cost Risk Analysis Approach that Incorporates Engineering Realism

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Harmon, Corey C.; Warfield, Keith R.; Rosenberg, Leigh S.

2006-01-01

This paper discusses the JPL Cost Engineering Group (CEG) cost risk analysis approach that accounts for all three types of cost risk. It will also describe the evaluation of historical cost data upon which this method is based. This investigation is essential in developing a method that is rooted in engineering realism and produces credible, dependable results to aid decision makers.

The Effect of Geometric Realism on Presence in a Virtual Reality Game

DEFF Research Database (Denmark)

Hvass, Jonatan Salling; Larsen, Oliver Stevns; Vendelbo, Kasper Bøgelund

2017-01-01

Previous research on visual realism and presence has not involved scenarios, graphics, and hardware representative of commercially available VR games. This poster details a between-subjects study (n=50) exploring if polygon count and texture resolution influence presence during exposure to a VR...

Fair-sampling assumption is not necessary for testing local realism

International Nuclear Information System (INIS)

Berry, Dominic W.; Jeong, Hyunseok; Stobinska, Magdalena; Ralph, Timothy C.

2010-01-01

Almost all Bell inequality experiments to date have used postselection and therefore relied on the fair sampling assumption for their interpretation. The standard form of the fair sampling assumption is that the loss is independent of the measurement settings, so the ensemble of detected systems provides a fair statistical sample of the total ensemble. This is often assumed to be needed to interpret Bell inequality experiments as ruling out hidden-variable theories. Here we show that it is not necessary; the loss can depend on measurement settings, provided the detection efficiency factorizes as a function of the measurement settings and any hidden variable. This condition implies that Tsirelson's bound must be satisfied for entangled states. On the other hand, we show that it is possible for Tsirelson's bound to be violated while the Clauser-Horne-Shimony-Holt (CHSH)-Bell inequality still holds for unentangled states, and present an experimentally feasible example.

Étienne Gilson’s Philosophical Realism / Realizm filozoficzny w ujęciu Étienne Gilsona

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Natalia Kunat

2017-09-01

Full Text Available This paper attempts to analyze realist philosophy as the way of knowing reality in the thought of Étienne Gilson. The French Philosopher was a defender of philosophical realism who rationally justified the thesis about knowing things existing in the world independently of the knowing subject. Philosophical inquiry, carried out in a realist way, should start with the being which really exists. The basic philosophical method aims to rationally understand reality as well as explain the multifaceted cognition of reality. Gilson’s contribution to the development of philosophical realism includes the promotion of a realist philosophical awareness and the opposition to idealistic philosophies (Cartesianism, Kantianism.

The Cultural Work of Magical Realism in Three Young Adult Novels

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Latham, Don

2007-01-01

Magical realism as a literary mode is often subversive and transgressive, questioning the values and assumptions of the dominant society that it depicts. Young adult literature, by contrast, is typically thought to serve a socializing function, helping to integrate young readers into adult society. What then is the cultural work of magical realism…

Macroscopic realism and quantum measurement: measurers as a natural kind

International Nuclear Information System (INIS)

Jaeger, Gregg

2014-01-01

The notion of macroscopic realism has been used in attempts to achieve consistency between physics and everyday experience and to locate some boundary between the realms of classical mechanics and quantum meachanics. Its ostensibly underlying conceptual components, realism and macroscopicity, have most often appeared in the foundations of physics in relation to quantum measurement: reality became a prominent topic of discussion in quantum physics after the notion of element of reality was defined and used by Einstein, Podolsky and Rosen in that context, and macroscopicity is often explicitly assumed to be an essential property of any measuring apparatus. However, macroscopicity turns out to be a rather vaguer and less consistently understood notion than typically assumed by physicists who have not explicitly explored the notion themselves. For this reason, it behooves those investigating the foundations of quantum mechanics from a realist perspective to look for alternative notions for grounding quantum measurement. Here, the merits of treating the measuring instrument as a ‘natural kind’ as a means of avoiding anthropocentrism in the foundations of quantum measurement are pointed out as a means of advancing quantum measurement theory. (paper)

Generating realistic environments for cyber operations development, testing, and training

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Berk, Vincent H.; Gregorio-de Souza, Ian; Murphy, John P.

2012-06-01

Training eective cyber operatives requires realistic network environments that incorporate the structural and social complexities representative of the real world. Network trac generators facilitate repeatable experiments for the development, training and testing of cyber operations. However, current network trac generators, ranging from simple load testers to complex frameworks, fail to capture the realism inherent in actual environments. In order to improve the realism of network trac generated by these systems, it is necessary to quantitatively measure the level of realism in generated trac with respect to the environment being mimicked. We categorize realism measures into statistical, content, and behavioral measurements, and propose various metrics that can be applied at each level to indicate how eectively the generated trac mimics the real world.

Happiness, Psychology, and Degrees of Realism.

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Lavazza, Andrea

2016-01-01

The recent emphasis on a realist ontology that cannot be overshadowed by subjectivist or relativist perspectives seems to have a number of consequences for psychology as well. My attempt here is to analyse the relationship between happiness as a state of the individual and the states of the external world and the brain events related to (or, in some hypotheses, causally responsible for) its occurrence. It can be maintained that different degrees of realism are suitable to describe the states of happiness and this fact might have relevant psychological implications, namely for the so-called positive psychology. This is especially true now that there are methods available to induce subjective states of happiness unrelated to the external conditions usually taken to be linked to such states.

Curse Of The Desert? Magic Realism And The Pitfalls Of Setting In Bessie Head’s Maru And Ben Okri’s Starbook

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Wazha Lopang

2014-07-01

Full Text Available This paper argues that magic realism cannot evolve in a setting where there is no bush environment because this is where oral literature flourishes. The oral literature provides the conditions necessary for magic realism to explore the relationship between the surreal and the mundane. If the magic realism is set outside this bush environment then the experience becomes muted. Texts that have a clear dichotomy between the world of human habitation (such as villages, towns and that of the spirits (such as the bush or forest enable magic realism to evolve into a more profound experience, that of the dream setting. My argument is that the dream setting needs this dichotomy for it to exist. In essence, texts that do not use the bush environment as part of their setting fall short in their creative aspect because the space and time within which characters function are constrained. The use of the oral tradition with its interplay of the human, animal and spirit worlds creates a platform for the dream setting, something which cannot happen where the setting limits itself to the world of human habitation. I will compare Bessie Head’s Maru with Ben Okri’s Starbook to show how the oral tradition in the latter text makes it achieve a level of magic realism that cannot be possible in Head’s Maru.

Bell's theorem and quantum realism. Reassessment in light of the Schroedinger paradox

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Shakur, Asif M.; Hemmick, Douglas L.

2012-01-01

Quantum theory presents a strange picture of the world, offering no real account of physical properties apart from observation. Neils Bohr felt that this reflected a core truth of nature: ''There is no quantum world. There is only an abstract mathematical description.'' Among the most significant developments since Bohr's day has been the theorem of John S. Bell. It is important to consider whether Bell's analysis supports such a denial of microrealism. In this book, we evaluate the situation in terms of an early work of Erwin Schroedinger. Doing so, we see how Bell's theorem is conceptually related to the Conway and Kochen Free Will theorem and also to all the major anti-realism efforts. It is easy to show that none of these analyses imply the impossibility of objective realism. We find that Schroedinger's work leads to the derivation of a new series of theoretical proofs and potential experiments, each involving ''entanglement,'' the link between particles in some quantum systems. (orig.)

Trick or treat? Muslim Thangals, psychologisation and pragmatic realism in northern Kerala, India.

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Lang, Claudia

2014-12-01

Thangals are an endogamous community in Kerala, India, of Yemeni heritage who claim direct descent from the Prophet Muhammad's family. Due to their sacrosanct status, many thangals work as religious healers and thus are part of the informal mental health care system in Northern Kerala. Using the case of one thangal healer as an illustration of the many ritual healers in Kerala who engage the modern discourse of psychology in their practices, I argue that the psychologisation of ritual healing is part of a wider trend: the increasing rationalisation and scientification of traditional medical practices, whereby an increasing number of traditional healers negotiate science, modernity and religion and position their practice within these contested fields. Based on the analysis of this thangal's healing practice in the local context of Northern Kerala, I further argue that in order to understand "ritual" healing, scholars should emphasise pragmatic realism more than doctrinal purity. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

Quantum Locality, Rings a Bell?: Bell's Inequality Meets Local Reality and True Determinism

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Sánchez-Kuntz, Natalia; Nahmad-Achar, Eduardo

2018-01-01

By assuming a deterministic evolution of quantum systems and taking realism into account, we carefully build a hidden variable theory for Quantum Mechanics (QM) based on the notion of ontological states proposed by 't Hooft (The cellular automaton interpretation of quantum mechanics, arXiv:1405.1548v3, 2015; Springer Open 185, https://doi.org/10.1007/978-3-319-41285-6, 2016). We view these ontological states as the ones embedded with realism and compare them to the (usual) quantum states that represent superpositions, viewing the latter as mere information of the system they describe. Such a deterministic model puts forward conditions for the applicability of Bell's inequality: the usual inequality cannot be applied to the usual experiments. We build a Bell-like inequality that can be applied to the EPR scenario and show that this inequality is always satisfied by QM. In this way we show that QM can indeed have a local interpretation, and thus meet with the causal structure imposed by the Theory of Special Relativity in a satisfying way.

Understanding health decisions using critical realism: home-dialysis decision-making during chronic kidney disease.

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Harwood, Lori; Clark, Alexander M

2012-03-01

Understanding health decisions using critical realism: home-dialysis decision-making during chronic kidney disease This paper examines home-dialysis decision making in people with Chronic Kidney Disease (CKD) from the perspective of critical realism. CKD programmes focus on patient education for self-management to delay the progression of kidney disease and the preparation and support for renal replacement therapy e.g.) dialysis and transplantation. Home-dialysis has clear health, societal and economic benefits yet service usage is low despite efforts to realign resources and educate individuals. Current research on the determinants of modality selection is superficial and insufficient to capture the complexities embedded in the process of dialysis modality selection. Predictors of home-dialysis selection and the effect of chronic kidney disease educational programmes provide a limited explanation of this experience. A re-conceptualization of the problem is required in order to fully understand this process. The epistemology and ontology of critical realism guides our knowledge and methodology particularly suited for examination of these complexities. This approach examines the deeper mechanisms and wider determinants associated with modality decision making, specifically who chooses home dialysis and under what circumstances. Until more is known regarding dialysis modality decision making service usage of home dialysis will remain low as interventions will be based on inadequate epistemology. © 2011 Blackwell Publishing Ltd.

Depressive Realism and Attributional Style: Implications for Individuals at Risk for Depression

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Moore, Michael T.; Fresco, David M.

2007-01-01

Prior research has found that depressed individuals are more realistic in their interpretations of certain events than nondepressed individuals. However, the implications of this finding for the etiology of depressive disorders have never been clarified. The current investigation sought to remedy this situation by exploring realism in the context…

Non-local setting and outcome information for violation of Bell's inequality

International Nuclear Information System (INIS)

Pawlowski, Marcin; Kofler, Johannes; Paterek, Tomasz; Brukner, Caslav; Seevinck, Michael

2010-01-01

Bell's theorem is a no-go theorem stating that quantum mechanics cannot be reproduced by a physical theory based on realism, freedom to choose experimental settings and two locality conditions: setting (SI) and outcome (OI) independence. We provide a novel analysis of what it takes to violate Bell's inequality within the framework in which both realism and freedom of choice are assumed, by showing that it is impossible to model a violation without having information in one laboratory about both the setting and the outcome at the distant one. While it is possible that outcome information can be revealed from shared hidden variables, the assumed experimenter's freedom to choose the settings ensures that the setting information must be non-locally transferred even when the SI condition is obeyed. The amount of transmitted information about the setting that is sufficient to violate the CHSH inequality up to its quantum mechanical maximum is 0.736 bits.

Ontic structural realism and quantum field theory: Are there intrinsic properties at the most fundamental level of reality?

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Berghofer, Philipp

2018-05-01

Ontic structural realism refers to the novel, exciting, and widely discussed basic idea that the structure of physical reality is genuinely relational. In its radical form, the doctrine claims that there are, in fact, no objects but only structure, i.e., relations. More moderate approaches state that objects have only relational but no intrinsic properties. In its most moderate and most tenable form, ontic structural realism assumes that at the most fundamental level of physical reality there are only relational properties. This means that the most fundamental objects only possess relational but no non-reducible intrinsic properties. The present paper will argue that our currently best physics refutes even this most moderate form of ontic structural realism. More precisely, I will claim that 1) according to quantum field theory, the most fundamental objects of matter are quantum fields and not particles, and show that 2) according to the Standard Model, quantum fields have intrinsic non-relational properties.

Back- and fore-grounding ontology: exploring the linkages between critical realism, pragmatism, and methodologies in health & rehabilitation sciences.

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DeForge, Ryan; Shaw, Jay

2012-03-01

Back- and fore-grounding ontology: exploring the linkages between critical realism, pragmatism, and methodologies in health & rehabilitation sciences As two doctoral candidates in a health and rehabilitation sciences program, we describe in this paper our respective paradigmatic locations along a quite nonlinear ontological-epistemological-axiological-methodological chain. In a turn-taking fashion, we unpack the tenets of critical realism and pragmatism, and then trace the linkages from these paradigmatic locations through to the methodological choices that address a community-based research problem. Beyond serving as an answer to calls for academics in training to demonstrate philosophical-theoretical-methodological integrity and coherence in their scholarship, this paper represents critical realism and its fore-grounding of a deeply stratified ontology in reflexive relation to pragmatism and its back-grounding of ontology. We conclude by considering the merits and challenges of conducting research from within singular versus proliferate paradigmatic perspectives. © 2011 Blackwell Publishing Ltd.

Low vs. high fidelity: the importance of 'realism' in the simulation of a stone treatment procedure.

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Sarmah, Piyush; Voss, Jim; Ho, Adrian; Veneziano, Domenico; Somani, Bhaskar

2017-07-01

Simulation training for stone surgery is now increasingly used as part of training curricula worldwide. A combination of low and high fidelity simulators has been used with varying degrees of 'realism' provided by them. In this review, we discuss low and high fidelity simulators used for ureteroscopy (URS) and percutaneous nephrolithotomy (PCNL) stone procedures with their advantages, disadvantages and future direction for endourological simulation surgery. The final goal will be to understand whether or not 'realism' has to be considered as a critical element in simulation for this field. There is a wide range of simulators available for URS and PCNL training ranging from basic bench-type model to advanced virtual reality and cadaveric models, all providing various levels of realism. Although basic models might be more useful to novices, advanced models allow for complex and more realistic simulation training. With a wide variety of simulators now available and given the latest novelties in modular training curriculums, combination of low and high fidelity simulators that provide a realistic and cost-effective option seems to be the way forward. It is unavoidable that simulators will play an increasing role in endourological training.

Positioning positivism, critical realism and social constructionism in the health sciences: a philosophical orientation.

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Cruickshank, Justin

2012-03-01

Positioning positivism, critical realism and social constructionism in the health sciences: a philosophical orientation This article starts by considering the differences within the positivist tradition and then it moves on to compare two of the most prominent schools of postpositivism, namely critical realism and social constructionism. Critical realists hold, with positivism, that knowledge should be positively applied, but reject the positivist method for doing this, arguing that causal explanations have to be based not on empirical regularities but on references to unobservable structures. Social constructionists take a different approach to postpositivism and endorse a relativist rejection of truth and hold that the task of research is to foster a scepticism that undermines any positive truth claim made. It is argued that social constructionism is a contradictory position. © 2011 Blackwell Publishing Ltd.

Emergence of realism: Enhanced visual artistry and high accuracy of visual numerosity representation after left prefrontal damage.

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Takahata, Keisuke; Saito, Fumie; Muramatsu, Taro; Yamada, Makiko; Shirahase, Joichiro; Tabuchi, Hajime; Suhara, Tetsuya; Mimura, Masaru; Kato, Motoichiro

2014-05-01

Over the last two decades, evidence of enhancement of drawing and painting skills due to focal prefrontal damage has accumulated. It is of special interest that most artworks created by such patients were highly realistic ones, but the mechanism underlying this phenomenon remains to be understood. Our hypothesis is that enhanced tendency of realism was associated with accuracy of visual numerosity representation, which has been shown to be mediated predominantly by right parietal functions. Here, we report a case of left prefrontal stroke, where the patient showed enhancement of artistic skills of realistic painting after the onset of brain damage. We investigated cognitive, functional and esthetic characteristics of the patient׳s visual artistry and visual numerosity representation. Neuropsychological tests revealed impaired executive function after the stroke. Despite that, the patient׳s visual artistry related to realism was rather promoted across the onset of brain damage as demonstrated by blind evaluation of the paintings by professional art reviewers. On visual numerical cognition tasks, the patient showed higher performance in comparison with age-matched healthy controls. These results paralleled increased perfusion in the right parietal cortex including the precuneus and intraparietal sulcus. Our data provide new insight into mechanisms underlying change in artistic style due to focal prefrontal lesion. Copyright © 2014 Elsevier Ltd. All rights reserved.

Testing locality at colliders via Bell's inequality?

International Nuclear Information System (INIS)

Abel, S.A.; Dreiner, H.; Dittmar, M.

1992-01-01

We consider a measurement of correlated spins at LEP and show that it does not constitute a general test of local-realistic theories via Bell's inequality. The central point of the argument is that such tests, where the spins of two particles are inferred from a scattering distribution, can be described by a local hidden variable theory. We conclude that with present experimental techniques it is not possible to test locality via Bell's inequality at a collider experiment. Finally we suggest an improved fixed-target experiment as a viable test of Bell's inequality. (orig.)

Realism, functions, and the a priori: Ernst Cassirer's philosophy of science.

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Heis, Jeremy

2014-12-01

This paper presents the main ideas of Cassirer's general philosophy of science, focusing on the two aspects of his thought that--in addition to being the most central ideas in his philosophy of science--have received the most attention from contemporary philosophers of science: his theory of the a priori aspects of physical theory, and his relation to scientific realism.

A plea for a touch of realism: reply to P Whitaker

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Lamb, David

1990-01-01

This reply to P Whitaker's `Resource allocation: a plea for a touch of realism' acknowledges that health-care ethics should be relevant to events in the real world, but questions the extent to which philosophical inquiry should be confined to parameters determined by existing sociopolitical forces. The reading of the daily paper is the morning prayer of the realist. PMID:2231637

Mixed-realism simulation of adverse event disclosure: an educational methodology and assessment instrument.

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Matos, Francisco M; Raemer, Daniel B

2013-04-01

Physicians have an ethical duty to disclose adverse events to patients or families. Various strategies have been reported for teaching disclosure, but no instruments have been shown to be reliable for assessing them.The aims of this study were to report a structured method for teaching adverse event disclosure using mixed-realism simulation, develop and begin to validate an instrument for assessing performance, and describe the disclosure practice of anesthesiology trainees. Forty-two anesthesiology trainees participated in a 2-part exercise with mixed-realism simulation. The first part took place using a mannequin patient in a simulated operating room where trainees became enmeshed in a clinical episode that led to an adverse event and the second part in a simulated postoperative care unit where the learner is asked to disclose to a standardized patient who systematically moves through epochs of grief response. Two raters scored subjects using an assessment instrument we developed that combines a 4-element behaviorally anchored rating scale (BARS) and a 5-stage objective rating scale. The performance scores for elements within the BARS and the 5-stage instrument showed excellent interrater reliability (Cohen's κ = 0.7), appropriate range (mean range for BARS, 4.20-4.47; mean range for 5-stage instrument, 3.73-4.46), and high internal consistency (P realism simulation that engages learners in an adverse event and allows them to practice disclosure to a structured range of patient responses. We have developed a reliable 2-part instrument with strong psychometric properties for assessing disclosure performance.

Documentary Realism, Sampling Theory and Peircean Semiotics: electronic audiovisual signs (analog or digital as indexes of reality

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Hélio Godoy

2007-07-01

Full Text Available This paper addresses Documentary Realism, focusing on thephysical phenomena of transduction that take place in analog and digital audiovisual systems, herein analyzed in the light of the Sampling Theory, within the framework of Shannon and Weaver’s Information Theory. Transduction is a process by which one type of energy is transformed into another, or by which information is transcodified. Within the scope of Documentary Realism, it cannotbe claimed that electronic audiovisual signs, because of their technical digital features lead to a rupture with reality. Rather, the digital documentary, based on electronic digital cinematography, is still an index of reality.

Standpoint Theory, Realism and the Search for Objectivity in the Sociology of Education

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Edwards, Gail

2014-01-01

This paper evaluates the contribution of "social realism" in resolving questions of knowledge and curriculum in the sociology of education. Social realists argue that, in the interests of educational equality, all pupils should have access to "powerful" knowledge produced by specialist intellectual communities. Social realism…

Quantum dynamics and breakdown of classical realism in nonlinear oscillators

International Nuclear Information System (INIS)

Gat, Omri

2007-01-01

The leading nonclassical term in the quantum dynamics of nonlinear oscillators is calculated in the Moyal quasi-trajectory representation. The irreducibility of the quantum dynamics to phase-space trajectories is quantified by the discrepancy of the canonical quasi-flow and the quasi-flow of a general observable. This discrepancy is shown to imply the breakdown of classical realism that can give rise to a dynamical violation of Bell's inequalities. (fast track communication)

Spirituality Phenomenon and the Ideal-Realism Method in Modern Education

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A. P. Vetoshkin

2012-01-01

Full Text Available The paper is devoted to the spiritual revival of modern Russia. In the author’s view, the Russian Idea with its basic principles, moral, spiritual and semantic concepts should provide the guidelines for education, upbringing and the youth policy, guaranteeing the spiritual transformation and mobilization of the moral power for the benefit of the motherland, local society and family, as well as the personal growth. The theoretical and methodological bases for developing and implementing the above idea could be found in Russian national religious and philosophic thinking with its balanced dialectics of spiritual and social aspects. The experience of the ideal-realism, as the leading trend of the national spiritual culture, is being analyzed and summarized. The correlation between the ideal and material in social and individual life is demonstrated along with the dialectics and wholeness of the divine and human, religious and secular, ecclesiastical and civil.The author addresses the philosophic heritage of I. A. Ilyin, V. S. Solovyev, S. N. Trubetskoy, S. N. Bulgakov, N. A. Berdyayev, N. O. Losskiy etc, and regards spirituality as the basic defining, systematic and leading origin of the whole socio-historical process including human being formation and development, education and upbringing. 

Mapping new theoretical and methodological terrain for knowledge translation: contributions from critical realism and the arts

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Kontos, Pia C; Poland, Blake D

2009-01-01

Background Clinical practice guidelines have been a popular tool for the improvement of health care through the implementation of evidence from systematic research. Yet, it is increasingly clear that knowledge alone is insufficient to change practice. The social, cultural, and material contexts within which practice occurs may invite or reject innovation, complement or inhibit the activities required for success, and sustain or alter adherence to entrenched practices. However, knowledge translation (KT) models are limited in providing insight about how and why contextual contingencies interact, the causal mechanisms linking structural aspects of context and individual agency, and how these mechanisms influence KT. Another limitation of KT models is the neglect of methods to engage potential adopters of the innovation in critical reflection about aspects of context that influence practice, the relevance and meaning of innovation in the context of practice, and the identification of strategies for bringing about meaningful change. Discussion This paper presents a KT model, the Critical Realism and the Arts Research Utilization Model (CRARUM), that combines critical realism and arts-based methodologies. Critical realism facilitates understanding of clinical settings by providing insight into the interrelationship between its structures and potentials, and individual action. The arts nurture empathy, and can foster reflection on the ways in which contextual factors influence and shape clinical practice, and how they may facilitate or impede change. The combination of critical realism and the arts within the CRARUM model promotes the successful embedding of interventions, and greater impact and sustainability. Conclusion CRARUM has the potential to strengthen the science of implementation research by addressing the complexities of practice settings, and engaging potential adopters to critically reflect on existing and proposed practices and strategies for sustaining

Cartographic continuum rendering based on color and texture interpolation to enhance photo-realism perception

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Hoarau, Charlotte; Christophe, Sidonie

2017-05-01

Graphic interfaces of geoportals allow visualizing and overlaying various (visually) heterogeneous geographical data, often by image blending: vector data, maps, aerial imagery, Digital Terrain Model, etc. Map design and geo-visualization may benefit from methods and tools to hybrid, i.e. visually integrate, heterogeneous geographical data and cartographic representations. In this paper, we aim at designing continuous hybrid visualizations between ortho-imagery and symbolized vector data, in order to control a particular visual property, i.e. the photo-realism perception. The natural appearance (colors, textures) and various texture effects are used to drive the control the photo-realism level of the visualization: color and texture interpolation blocks have been developed. We present a global design method that allows to manipulate the behavior of those interpolation blocks on each type of geographical layer, in various ways, in order to provide various cartographic continua.

An introduction to a metaphysics of nature: Representation, realism and scientific laws

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Daniel Laskowski Tozzini

2016-12-01

Full Text Available Ghins, Michel. Introdução a uma metafísica da natureza: Representação, realismo e leis científicas (An introduction to a metaphysics of nature: Representation, realism and scientific laws. Transl. Eduardo Barra e Ronei Clécio Mocellin. Editora UFPR, 2013. 96 pp. R$ 35,00 – ISBN- 9788565888356.

Sociological, Postmodern, and New Realism Perspectives in Social Constructionism: Implications for Literacy Research.

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Hruby, George G.

2001-01-01

Offers an historical definition of social constructionism, a review of its conceptual bases, and an exploration of its epistemological implications. Describes a history comprised of three paradigmatically distinct waves: a sociological, a postmodern, and an emerging third wave grounded in new realism or neonaturalism. Suggests potential uses of…

Accuracy, Authenticity, Fidelity: Aesthetic Realism, the "Deficit Model," and the Public Understanding of Science.

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Vidal, Fernando

2018-03-01

Argument "Deficit model" designates an outlook on the public understanding and communication of science that emphasizes scientific illiteracy and the need to educate the public. Though criticized, it is still widespread, especially among scientists. Its persistence is due not only to factors ranging from scientists' training to policy design, but also to the continuance of realism as an aesthetic criterion. This article examines the link between realism and the deficit model through discussions of neurology and psychiatry in fiction film, as well as through debates about historical movies and the cinematic adaptation of literature. It shows that different values and criteria tend to dominate the realist stance in different domains: accuracy for movies concerning neurology and psychiatry, authenticity for the historical film, and fidelity for adaptations of literature. Finally, contrary to the deficit model, it argues that the cinema is better characterized by a surplus of meaning than by informational shortcomings.

The Performative Force of Bodies: Affective Realism in Contemporary Brazilian Cinema

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Alessandra Brandão

2015-10-01

Full Text Available http://dx.doi.org/10.5007/2175-8026.2015v68n3p161 This paper traces the emergence of a younger generation of Brazilian filmmakers whose works bypass traditional themes in Brazilian cinema such as urban violence and historical revisionism to engage in post-identity politics avoiding narratives of nation, class and gender. One of the most prominent features in these recent works is a questioning of the status of the image, which vacillates between fiction and documentary without a point of resolution. This vacillation can be understood in terms of the performative nature of films like The Monsters, The Residents, The Earth Giveth, The Earth Taketh and Avenida Brasilia Formosa. Such films are centered around improvisations that open up the image to the real. Therefore, these films produce a space between fiction and documentary, between reality and artifice that is productive and politically charged. This proposal aims at discussing this “Brand New” Brazilian Cinema (Novísssimo Cinema Brasileiro and the performative force of bodies in its affective realism. No longer a referent for a sociological truth about Brazilian society, realism is taken as something that the image does, i. e., as an affect that challenges the viewer's response-ability.

ESE between discourse and Materiality. New empirical and theoretical perspectives on realisms, materialisms and discourse

DEFF Research Database (Denmark)

Lysgaard, Jonas Greve; Reid, Alan; Fjeldsted, Kristoffer Lolk

This symposium brings together ESE researchers from across the field with a special interest in questions related to different notions of materialism and realism. The purpose of the two linked symposiums is to continue and develop fruitful discussions started in Porto 2014 and develop new......, 2003). While it can be argued that some areas within ESE (e.g. outdoor education) are already inclined to draw on perspectives that does not only focus on language, we would like to learn from new emerging approaches to materiality and realisms in order push the overall field of ESE, and discuss......., Gironi, F., Gokey T., & Jackson, R. (red.) Speculations IV. Brooklyn, NY: Punctum books. Dolphin, R. & Tuin, I. v. d. (2012) New Materialism: Interviews & Cartographies. Open Humanities Press. Meillassoux, Q. (2007) After Finitude, English translation of Aprèés la Finitude (2006). Continuum....

Perceived realism and Twitter use are associated with increased acceptance of cosmetic surgery among those watching reality television cosmetic surgery programs.

Science.gov (United States)

Fogel, Joshua; King, Kahlil

2014-08-01

Reality television programming is a popular type of television programming, and features shows about cosmetic surgery. Social media such as Facebook and Twitter are increasingly popular methods of sharing information. The authors surveyed college students to determine among those watching reality television cosmetic surgery programs whether perceived realism or social media use was associated with attitudes toward cosmetic surgery. Participants (n=126) were surveyed about their reality television cosmetic surgery program viewing habits, their perception of the realism of reality television programming, and social media topics of Twitter and Facebook. Outcome variables were the Acceptance of Cosmetic Surgery Scales of social, intrapersonal, and consider. Perceived realism was significantly associated with increased scores on the Acceptance of Cosmetic Surgery Scale subscales of social (p=0.004), intrapersonal (p=0.03), and consider (p=0.03). Following a character from a reality television program on Twitter was significantly associated with increased social scores (p=0.04). There was no significant association of Facebook behavior with attitudes toward cosmetic surgery. Cosmetic plastic surgeons may benefit by advertising their services on cosmetic surgery reality television programs. These reality television programs portray cosmetic surgery in a positive manner, and viewers with increased perceived realism will be a potential receptive audience toward such advertising. Also, advertising cosmetic surgery services on Twitter feeds that discuss cosmetic surgery reality television programs would be potentially beneficial.

Experimental test of quantum nonlocality in three-photon Greenberger-Horne-Zeilinger entanglement

Science.gov (United States)

Pan; Bouwmeester; Daniell; Weinfurter; Zeilinger

2000-02-03

Bell's theorem states that certain statistical correlations predicted by quantum physics for measurements on two-particle systems cannot be understood within a realistic picture based on local properties of each individual particle-even if the two particles are separated by large distances. Einstein, Podolsky and Rosen first recognized the fundamental significance of these quantum correlations (termed 'entanglement' by Schrodinger) and the two-particle quantum predictions have found ever-increasing experimental support. A more striking conflict between quantum mechanical and local realistic predictions (for perfect correlations) has been discovered; but experimental verification has been difficult, as it requires entanglement between at least three particles. Here we report experimental confirmation of this conflict, using our recently developed method to observe three-photon entanglement, or 'Greenberger-Horne-Zeilinger' (GHZ) states. The results of three specific experiments, involving measurements of polarization correlations between three photons, lead to predictions for a fourth experiment; quantum physical predictions are mutually contradictory with expectations based on local realism. We find the results of the fourth experiment to be in agreement with the quantum prediction and in striking conflict with local realism.

Evolutionary Debunking of Normative Realism. Not a Real Threat for Realists

OpenAIRE

Pellegrino, Gianfranco

2017-01-01

A debunking argument has been recently levelled against normative realism. According to this line of reasoning, most of our normative beliefs have been strongly influenced by evolutionary forces. As evolution is a non-truth-tracking process, this influence may lead our normative beliefs off track. If so, normative realists need to provide an explanation of how it is possible that our normative beliefs track stance-independent truth, or of how their falsity could be spotted, when evolution pow...

Quantum Mechanics and locality in the K0 K-bar0 system experimental verification possibilities

International Nuclear Information System (INIS)

Muller, A.

1994-11-01

It is shown that elementary Quantum Mechanics, applied to the K 0 K-bar 0 system, predicts peculiar long range EPR correlations. Possible experimental verifications are discussed, and a concrete experiment with anti-protons annihilations at rest is proposed. A pedestrian approach to local models shows that K 0 K-bar 0 experimentation could provide arguments to the local realism versus quantum theory controversy. (author). 17 refs., 23 figs

Processing Digital Imagery to Enhance Perceptions of Realism

Science.gov (United States)

Woodell, Glenn A.; Jobson, Daniel J.; Rahman, Zia-ur

2003-01-01

Multi-scale retinex with color restoration (MSRCR) is a method of processing digital image data based on Edwin Land s retinex (retina + cortex) theory of human color vision. An outgrowth of basic scientific research and its application to NASA s remote-sensing mission, MSRCR is embodied in a general-purpose algorithm that greatly improves the perception of visual realism and the quantity and quality of perceived information in a digitized image. In addition, the MSRCR algorithm includes provisions for automatic corrections to accelerate and facilitate what could otherwise be a tedious image-editing process. The MSRCR algorithm has been, and is expected to continue to be, the basis for development of commercial image-enhancement software designed to extend and refine its capabilities for diverse applications.

THE REFLECTION ON THE EFFICIENCY OF REALISM ASSUMPTIONS IN THE CONTEMPORARY WORLD THROUGH THE INVASION OF IRAQ IN 2003

Directory of Open Access Journals (Sweden)

Leonardo Luiz Silveira da Silva

2014-11-01

Full Text Available At the turn of the nineteenth and twentieth centuries, when Rudolph Kjellén created the geopolitics term, political realism was recognized as a dominant explanatory theory for understanding power relations globally. After the two World Wars, the interdependence of nations seemed a final goal, even during the Cold War period, the opposition between ideologies could put political limitations on integration which already was possible due to advances of transport and communication. In the 1970s, Realism has found in academia, within the International Relations, a rival theory that have a great explanatory power for rearrangement of the future order: liberalism, understood as a theory pointing the international institutions and the interdependence of trade as powerful forces to explain the power relations globally. Through the 2003 invasion of Iraq, this work intends point to two different ways to interpret the same event in the light of Realism and Liberalism, aiming at finding their limitations on a world still in transition with regard to consolidation or extinction of its analytical assumptions. To do so, it focuses on the characteristics of the contemporary world coming jeopardizing some realistic assumptions.

The contstructivistic defence of the objectivity of moral standards and natural law that does not require the debate on moral realism

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Šljukić Slavenko

2017-01-01

Full Text Available The main goal of Kenneth R. Westphal’s How Hume and Kant Reconstruct Natural Law: Justifying Strict Objectivity without Debating Moral Realism is to defend the objectivity of moral standards and natural law and thus avoid the discussion about moral realism and its alternatives by interpreting Hume and Kant in a constructivistic sense. The reason behind the author’s disagreement with both: moral realism and non-realism (its alternative is our inability to properly understand and answer one of the two parts in Socrates’ question to Euthyphro: “Is the pious loved by the gods because it is pious, or is it pious because it is loved?“ Moral realists cannot provide an answer to its second part, since it is not possible to prove that moral standards are not artificial; conversely, moral non-realists cannot provide an answer to its first part, since it is not possible to avoid the relatitvity of moral standards. The author tends to solve this problem by avoiding the confrontation between moral realism and non-realism and thus choosing the constuctivistic stance that, as he argues, can be found in both Hume’s and Kant’s theories. The main point of this stance is that moral standards are indeed artificial, yet not arbitrary. He proves this by pointing out that both Hume and Kant treat the moral standards as a social fact (that is, artificial, but also as objective. Westphal points out that Hume explicitly writes about moral standards as a social fact, while showing that, at the same time, his theory of justice, which precedes all of the moral standards, is established independently of his theory of moral sentiments (potentially leading to moral relativism. In this manner, he provides the objectivity of those standards. On the other hand, Kant’s theory is interpreted as advanced, yet similar to Hume’s in its structure. The crucial similarity is that both Hume and Kant interpret the moral standards as a social fact (that is, as an

Correlation between perception of color, shadows, and surface textures and the realism of a scene in virtual reality.

Science.gov (United States)

Pardo, Pedro J; Suero, María Isabel; Pérez, Ángel Luis

2018-04-01

Head-mounted displays allow us to go through immersive experiences in virtual reality and are expected to be present in more and more applications in both recreational and professional fields. In this context, recent years have witnessed significant advances in rendering techniques following physical models of lighting and shading. The aim of this paper is to check the fidelity of the visual appearance of real objects captured through a 3D scanner, rendered in a personal computer and displayed in a virtual reality device. We have compared forward versus deferred rendering in real-time computing using two different illuminations and five artwork replicas. The survey contains seven items for each artwork (color, shading, texture, definition, geometry, chromatic aberration, and pixelation) and an extra item related to the global realism. The results confirm recent advances in virtual reality, showing considerable visual fidelity of generated to real-world images, with a rate close to 4 in a 5-step perceptive scale. They also show a high correlation of the realism sensation with the fidelity of color reproduction, material texture, and definition of the artwork replicas. Moreover, statistically significant differences between two rendering modes are found, with a higher value of realism sensation in the deferred rendering mode.

Bell's Theorem and Quantum Realism Reassessment in Light of the Schrödinger Paradox

CERN Document Server

Hemmick, Douglas L

2012-01-01

Quantum theory presents a strange picture of the world, offering no real account of physical properties apart from observation. Neils Bohr felt that this reflected a core truth of nature: "There is no quantum world. There is only an abstract mathematical description." Among the most significant developments since Bohr’s day has been the theorem of John S. Bell. It is important to consider whether Bell’s analysis supports such a denial of microrealism. In this book, we evaluate the situation in terms of an early work of Erwin Schrödinger. Doing so, we see how Bell’s theorem is conceptually related to the Conway and Kochen Free Will theorem and also to all the major anti-realism efforts. It is easy to show that none of these analyses imply the impossibility of objective realism. We find that Schrödinger’s work leads to the derivation of a new series of theoretical proofs and potential experiments, each involving “entanglement,” the link between particles in some quantum systems. .

Fighting with Reality: Considering Mark Johnson's Pragmatic Realism through Bruce Lee's Jeet Kune Do Method

Science.gov (United States)

Miller, Alexander David

2015-01-01

This dissertation considers the supportive and complementary relation between Mark Johnson's embodied realism and Bruce Lee's Jeet Kune Do as a philosophical practice. In exploring this relationship, the emphasis on one's embodiment condition and its relationship with metaphor and self-expression are the primary focus. First, this work involves…

CG2Real: Improving the Realism of Computer Generated Images Using a Large Collection of Photographs.

Science.gov (United States)

Johnson, Micah K; Dale, Kevin; Avidan, Shai; Pfister, Hanspeter; Freeman, William T; Matusik, Wojciech

2011-09-01

Computer-generated (CG) images have achieved high levels of realism. This realism, however, comes at the cost of long and expensive manual modeling, and often humans can still distinguish between CG and real images. We introduce a new data-driven approach for rendering realistic imagery that uses a large collection of photographs gathered from online repositories. Given a CG image, we retrieve a small number of real images with similar global structure. We identify corresponding regions between the CG and real images using a mean-shift cosegmentation algorithm. The user can then automatically transfer color, tone, and texture from matching regions to the CG image. Our system only uses image processing operations and does not require a 3D model of the scene, making it fast and easy to integrate into digital content creation workflows. Results of a user study show that our hybrid images appear more realistic than the originals.

Realism, Instrumentalism, and Scientific Symbiosis: Psychological Theory as a search for truth and the discovery of solutions

NARCIS (Netherlands)

Cacioppo, J.T.; Semin, G.R.; Berntson, G.G.

2004-01-01

Scientific realism holds that scientific theories are approximations of universal truths about reality, whereas scientific instrumentalism posits that scientific theories are intellectual structures that provide adequate predictions of what is observed and useful frameworks for answering questions

Conflicting Goals of Educational Action: A Study of Teacher Agency from A Transactional Realism Perspective

Science.gov (United States)

Bergh, Andreas; Wahlström, Ninni

2018-01-01

This study focuses on the different ways in which teachers relate their situational agency and professional assignment to the national curriculum content and curriculum dilemmas. It builds theoretically on transactional realism and empirically on analyses of interviews with teachers, exploring the nature of teacher agency during the enactment of a…

On the necessity and sufficiency of local commutativity for causality in quantum mechanics

International Nuclear Information System (INIS)

Muynck, W.M. de.

1984-01-01

This thesis contributes to the resolution of the question whether quantum mechanics admits an objectivistic interpretation if the description is restricted to the phenomenalistic domain of the quantum mechanical observables. Without touching the realism-phenomenalism dichotomy, this thesis investigates the possibility to disregard the influence of the measurement interaction on the qm measuring results. In the first part, the measuring process is studied and its influence on the objectivity of measuring results. The measurement of a local observable is interpreted as a local operation. Its local commutativity is a necessary condition for macrocausality. In the second part the converse question is studied, viz. Whether local commutativity is sufficient for macrocausality. (Auth.)

Emotions Bias Perceptions of Realism in Audiovisual Media: Why We May Take Fiction for Real

Science.gov (United States)

Konijn, Elly A.; Walma van der Molen, Juliette H.; van Nes, Sander

2009-01-01

This study investigated whether emotions induced in TV-viewers (either as an emotional state or co-occurring with emotional involvement) would increase viewers' perception of realism in a fake documentary and affect the information value that viewers would attribute to its content. To that end, two experiments were conducted that manipulated (a)…

Realism, Authenticity, and Learning in Healthcare Simulations: Rules of Relevance and Irrelevance as Interactive Achievements

Science.gov (United States)

Rystedt, Hans; Sjoblom, Bjorn

2012-01-01

Because simulators offer the possibility of functioning as authentic representations of real-world tasks, these tools are regarded as efficient for developing expertise. The users' experience of realism is recognised as crucial, and is often regarded as an effect of the similarity between reality and the simulator itself. In this study, it is…

Costs and benefits of realism and optimism.

Science.gov (United States)

Bortolotti, Lisa; Antrobus, Magdalena

2015-03-01

What is the relationship between rationality and mental health? By considering the psychological literature on depressive realism and unrealistic optimism, it was hypothesized that, in the context of judgments about the self, accurate cognitions are psychologically maladaptive and inaccurate cognitions are psychologically adaptive. Recent studies recommend being cautious in drawing any general conclusion about the style of thinking and mental health. Recent investigations suggest that people with depressive symptoms are more accurate than controls in tasks involving time perception and estimates of personal circumstances, but not in other tasks. Unrealistic optimism remains a robust phenomenon across a variety of tasks and domains, and researchers are starting to explore its neural bases. However, the challenge is to determine to what extent and in what way unrealistic optimism is beneficial. We should revisit the hypothesis that optimistic cognitions are psychologically adaptive, whereas realistic thinking is not. Realistic beliefs and expectations can be conducive to wellbeing and good functioning, and wildly optimistic cognitions have considerable psychological costs.

Processes underlying the effects of adolescents' use of sexually explicit Internet material: the role of perceived realism

NARCIS (Netherlands)

Peter, J.; Valkenburg, P.M.

2010-01-01

Although research has repeatedly demonstrated a link between adolescents’ exposure to sexually explicit Internet material (SEIM) and sexual attitudes, the processes underlying this association are not well understood. More specifically, studies have pointed to a mediating role of perceived realism,

Quantum Mechanics and locality in the K{sup 0} K-bar{sup 0} system experimental verification possibilities

Energy Technology Data Exchange (ETDEWEB)

Muller, A.

1994-11-01

It is shown that elementary Quantum Mechanics, applied to the K{sup 0} K-bar{sup 0} system, predicts peculiar long range EPR correlations. Possible experimental verifications are discussed, and a concrete experiment with anti-protons annihilations at rest is proposed. A pedestrian approach to local models shows that K{sup 0} K-bar{sup 0} experimentation could provide arguments to the local realism versus quantum theory controversy. (author). 17 refs., 23 figs.

A mismatch in the human realism of face and voice produces an uncanny valley

Science.gov (United States)

Mitchell, Wade J; Szerszen, Kevin A; Lu, Amy Shirong; Schermerhorn, Paul W; Scheutz, Matthias; MacDorman, Karl F

2011-01-01

The uncanny valley has become synonymous with the uneasy feeling of viewing an animated character or robot that looks imperfectly human. Although previous uncanny valley experiments have focused on relations among a character's visual elements, the current experiment examines whether a mismatch in the human realism of a character's face and voice causes it to be evaluated as eerie. The results support this hypothesis. PMID:23145223

Differential effects of face-realism and emotion on event-related brain potentials and their implications for the uncanny valley theory

Science.gov (United States)

Schindler, Sebastian; Zell, Eduard; Botsch, Mario; Kissler, Johanna

2017-03-01

Cartoon characters are omnipresent in popular media. While few studies have scientifically investigated their processing, in computer graphics, efforts are made to increase realism. Yet, close approximations of reality have been suggested to evoke sometimes a feeling of eeriness, the “uncanny valley” effect. Here, we used high-density electroencephalography to investigate brain responses to professionally stylized happy, angry, and neutral character faces. We employed six face-stylization levels varying from abstract to realistic and investigated the N170, early posterior negativity (EPN), and late positive potential (LPP) event-related components. The face-specific N170 showed a u-shaped modulation, with stronger reactions towards both most abstract and most realistic compared to medium-stylized faces. For abstract faces, N170 was generated more occipitally than for real faces, implying stronger reliance on structural processing. Although emotional faces elicited highest amplitudes on both N170 and EPN, on the N170 realism and expression interacted. Finally, LPP increased linearly with face realism, reflecting activity increase in visual and parietal cortex for more realistic faces. Results reveal differential effects of face stylization on distinct face processing stages and suggest a perceptual basis to the uncanny valley hypothesis. They are discussed in relation to face perception, media design, and computer graphics.

Differential effects of face-realism and emotion on event-related brain potentials and their implications for the uncanny valley theory.

Science.gov (United States)

Schindler, Sebastian; Zell, Eduard; Botsch, Mario; Kissler, Johanna

2017-03-23

Cartoon characters are omnipresent in popular media. While few studies have scientifically investigated their processing, in computer graphics, efforts are made to increase realism. Yet, close approximations of reality have been suggested to evoke sometimes a feeling of eeriness, the "uncanny valley" effect. Here, we used high-density electroencephalography to investigate brain responses to professionally stylized happy, angry, and neutral character faces. We employed six face-stylization levels varying from abstract to realistic and investigated the N170, early posterior negativity (EPN), and late positive potential (LPP) event-related components. The face-specific N170 showed a u-shaped modulation, with stronger reactions towards both most abstract and most realistic compared to medium-stylized faces. For abstract faces, N170 was generated more occipitally than for real faces, implying stronger reliance on structural processing. Although emotional faces elicited highest amplitudes on both N170 and EPN, on the N170 realism and expression interacted. Finally, LPP increased linearly with face realism, reflecting activity increase in visual and parietal cortex for more realistic faces. Results reveal differential effects of face stylization on distinct face processing stages and suggest a perceptual basis to the uncanny valley hypothesis. They are discussed in relation to face perception, media design, and computer graphics.

Empirical Phenomenon, Subjective Construction And Ontological Trught: (An Analysis of Problems of Scientific Explanation and Critical Realism Approach

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Faramarz Taghilou

2014-12-01

Full Text Available Both the positivist and negativist frameworks of explanation are common in this naturalist proposition that unlike the metaphysical philosophy, reality is embedded only in experimental level. Therefore, the scientific explanation of natural and social phenomenon should refer to this experimental level in order to be called meaningful, verifiable and scientific. But, the problem was always that the principle of causality as a necessary condition for every kind of scientific explanation is not logically deductible from induction in experimental level and remains as a metaphysical principle. The principle of experimental objectivity as a condition for the verifiability clause of scientific explanations could not be defended, because the experimentation was always embedded in subjectivity and theory. The Kantian idealists, in contrast, considering the scientific explanation as a mere representation of reality in subjective categories, could not justify the experimental knowledge of reality and the rationality for comparison among theories and paradigms. Critical Realism as an important approach in philosophy of science that relates to the works and thoughts of Roy Bhaskar tries to solve these problems by resorting to its principles of ontological realism, epistemological relativism, and judgmental rationality. Considering and analyzing the scientific explanation’s issues, we have focused here on the answers of the Critical Realism in this case. We will argue that how the Critical Realist interpretation of scientific explanation, the experimental phenomenon, and the subjective construction and ontological reality all reach to a logical coherence with each other.

How to constrain multi-objective calibrations using water balance components for an improved realism of model results

Science.gov (United States)

Accurate discharge simulation is one of the most common objectives of hydrological modeling studies. However, a good simulation of discharge is not necessarily the result of a realistic simulation of hydrological processes within the catchment. To enhance the realism of model results, we propose an ...

The Metaphysics of Morris R. Cohen: From Realism to Objective Relativism.

Science.gov (United States)

Cahoone, Lawrence

2017-01-01

Morris Cohen is mainly remembered as a philosopher of history and law, a friend of jurists (Oliver Wendell Holmes, Felix Frankfurter), and a teacher of more prominent philosophers (e.g., Ernest Nagel, Paul Weiss, Morton White). But his unique position as a student of the work of Russell and Peirce led him to make a distinctive contribution to the debate over realism in in the 1910s. Largely ignored and completely uncited, his early papers formulated what would later be called "objective relativism," influencing the later work of Columbia naturalism, hence American philosophy, from the 1940s to the 1960s.

Realism in nuclear criticality safety

International Nuclear Information System (INIS)

McLaughlin, T. P.

2009-01-01

Commercial nuclear power plant operation and regulation have made remarkable progress since the Three Mile Island Accident. This is attributed largely to a heavy dose of introspection and self-regulation by the industry and to a significant infusion of risk-informed and performance-based regulation by the Nuclear Regulatory Commission. This truly represents reality in action both by the plant operators and the regulators. On the other hand, the implementation of nuclear criticality safety in ex-reactor operations involving significant quantities of fissile material has not progressed, but, tragically, it has regressed. Not only is the practice of the discipline in excess of a factor of ten more expensive than decades ago; the trend continues. This unfortunate reality is attributed to a lack of coordination within the industry (as contrasted to what occurred in the reactor operations sector), and to a lack of implementation of risk-informed and performance-based regulation by the NRC While the criticality safety discipline is orders of magnitude smaller than the reactor safety discipline, both operators and regulators must learn from the progress made in reactor safety and apply it to the former to reduce the waste, inefficiency and potentially increased accident risks associated with current practices. Only when these changes are made will there be progress made toward putting realism back into nuclear criticality safety. (authors)

“They All Lived Happily Ever After. Obviously.”: Realism and Utopia in Game of Thrones-Based Alternate Universe Fairy Tale Fan Fiction

Directory of Open Access Journals (Sweden)

Anne Kustritz

2016-06-01

Full Text Available Fan fiction alternate universe stories (AUs that combine Game of Thrones characters and settings with fairy tale elements construct a dialogue between realism and wonder. Realism performs a number of functions in various genres, but becomes a particularly tricky concept to tie down in fantasy. Deployments of realism in “quality TV” series like Game of Thrones often reinforce social stigmatization of feminine genres like the romance, melodrama, and fairy tale. The happily-ever-after ending receives significant feminist criticism partly because it falls within a larger framework of utopian politics and poetics, which are frequently accused of essentialism and authoritarianism. However, because fan fiction cultures place all stories in dialogue with numerous other equally plausible versions, the fairy tale happy ending can serve unexpected purposes. By examining several case studies in fairy tale AU fan fiction based on Game of Thrones characters, situations, and settings, this paper demonstrates the genre’s ability to construct surprising critiques of real social and historical situations through strategic deployment of impossible wishes made manifest through the magic of fan creativity.

Realism in paediatric emergency simulations: A prospective comparison of in situ, low fidelity and centre-based, high fidelity scenarios.

Science.gov (United States)

O'Leary, Fenton; Pegiazoglou, Ioannis; McGarvey, Kathryn; Novakov, Ruza; Wolfsberger, Ingrid; Peat, Jennifer

2018-02-01

To measure scenario participant and faculty self-reported realism, engagement and learning for the low fidelity, in situ simulations and compare this to high fidelity, centre-based simulations. A prospective survey of scenario participants and faculty completing in situ and centre-based paediatric simulations. There were 382 responses, 276 from scenario participants and 106 from faculty with 241 responses from in situ and 141 from centre-based simulations. Scenario participant responses showed significantly higher ratings for the centre-based simulations for respiratory rate (P = 0.007), pulse (P = 0.036), breath sounds (P = 0.002), heart sounds (P realism for engagement and learning. © 2017 The Authors Emergency Medicine Australasia published by John Wiley & Sons Australia, Ltd on behalf of Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

Yes to Realism! No to Non-naturalism!

Directory of Open Access Journals (Sweden)

Ulysses T. Araña

2009-06-01

Full Text Available According to contemporary moral realism a moral property, like goodness or badness, is either a natural (descriptive property or a non-natural (nondescriptive property of actions or situations. Contemporary moral naturalists like Richard Boyd, Nicholas Sturgeon, and David Brink are a group of philosophers who are often referred to as Cornell realists because of their connection with Cornell University. Frank Jackson is another contemporary moral naturalist who is one of the leaders of The Canberra Planners at the Australian National University with which he is connected. Jackson defends “the most extreme form of naturalism.” Jackson’s view is considered extremeby those who disagree with him because he believes that moral properties are reducible or identical to natural properties. This view of Jackson is opposed by contemporary non-naturalists like Jonathan Dancy, Derek Parfit, and Russ Shafer-Landau for reasons which in my view are not successful. Despite Jackson’s reductionism about the ethical, the Cornell realists, nevertheless, agree with him that moral properties are natural properties.

Costs and benefits of realism and optimism

Science.gov (United States)

Bortolotti, Lisa; Antrobus, Magdalena

2015-01-01

Purpose of review What is the relationship between rationality and mental health? By considering the psychological literature on depressive realism and unrealistic optimism, it was hypothesized that, in the context of judgments about the self, accurate cognitions are psychologically maladaptive and inaccurate cognitions are psychologically adaptive. Recent studies recommend being cautious in drawing any general conclusion about the style of thinking and mental health. Recent findings Recent investigations suggest that people with depressive symptoms are more accurate than controls in tasks involving time perception and estimates of personal circumstances, but not in other tasks. Unrealistic optimism remains a robust phenomenon across a variety of tasks and domains, and researchers are starting to explore its neural bases. However, the challenge is to determine to what extent and in what way unrealistic optimism is beneficial. Summary We should revisit the hypothesis that optimistic cognitions are psychologically adaptive, whereas realistic thinking is not. Realistic beliefs and expectations can be conducive to wellbeing and good functioning, and wildly optimistic cognitions have considerable psychological costs. PMID:25594418

Violation of Bell’s inequality: Must the Einstein locality really be abandoned?

Science.gov (United States)

Jung, Kurt

2017-08-01

Since John Bell has established his famous inequality and several independent experiments have confirmed the distinct polarization correlation of entangled photons predicted by quantum mechanics it is evident that quantum mechanics cannot be explained by local realistic theories. Actually, the observed polarization correlation can be deduced from wave optical considerations. The correlation has its origin in the phase coupling of the two circularly polarized wave packets leaving the photon source simultaneously. The experimental results violate Bell’s inequality although no non-local interactions have to be assumed. In consequence the principle of locality remains valid in the scope of quantum mechanics. However, the principle of realism has to be replaced by the less stringent principle of contextuality.

Constitutionality Degree of Indonesia Local Regulation in Political Law Perspective

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Bambang Sutrisno

2016-06-01

Full Text Available The Politics of Law holds responsibility to give the surety of all regulations, including Local Regulation, for capable of reflecting the collective will of the public as the owner of the highest sovereignty. Politics of law is always working to bring together the ius constituendum and ius constitutum  at the encounter between realism and idealism. Local Regulation as subsystems of national law, is expected to serve as a guiding instrument and guard direction for development and continuous improvement of Local Government. Therefore the existence of local regulations holds a strategic role for legal certainty, which is a necessary to create a conducive business climate and stability of the country. How To Cite: Sutrisno, B. (2016. Constitutionality Degree of Indonesia Local Regulation in Political Law Perspective. Rechtsidee, 3(1, 41-52. doi:http://dx.doi.org/10.21070/jihr.v3i1.131

Into the Rabbit Hole: The Realism of Simulation

Directory of Open Access Journals (Sweden)

Mojca Krevel

2013-05-01

Full Text Available In the first half of the 1980s, at the height of the postmodernist theoretical debate, the actual literary production already showed signs of fatigue from the postmodernist dictum. Especially the works of American authors from the 1980s onwards show an increasing tendency to abandon the dead-end loops of postmodernist autoreferentiality, and to focus on various aspects of tangible reality instead. The paper argues that such practice should not be considered or theorised in terms of falling back on the great tradition of realism but rather as a necessary literary response to the mechanisms governing the changing of the epochs. My intention is to show that the allegedly realistic modes of contemporary American writing correspond to the epochal social, cultural and political changes accompanied by the rise of digital media. As such, these works effectively reflect, comment on and contribute to the contemporary reality that can no longer be adequately described or theorised about in terms of Cartesian metaphysics.

Testing of Local Velocity Transducer Used at Sodium Thermal Hydraulic Test Facilities

International Nuclear Information System (INIS)

Kim, Tae Joon; Eoh, Jae Hyuk; Hwang, In Koo; Jeong, Ji Young; Kim, Jong Man; Lee, Yong Bum; Kim, Yeong Il

2012-01-01

KAERI (Korea Atomic Energy Research Institute) will perform a test for a thermal hydraulic simulation with STELLA-1 for a Component Performance Test Sodium Loop in the year 2012, and subsequently it will construct for STELLA-2 for a Sodium Thermalhydraulic Experimental Facility in the year 2016. The STELLA-2 consists of a scaled reactor vessel with a core of electric heaters, four IHXs, two PHTS pumps, two DHXs, and two AHXs. In STELLA-2, several kinds of flow measurements exists. In this paper, the local velocity transducer as a prototype tested in IPPE (in Russia), was manufactured as a prototype by a shop in KAERI. This local velocity transducer will be used to measure the flow rate in a pool

Critical realism: a practical ontology to explain the complexities of smoking and tobacco control in different resource settings.

Science.gov (United States)

Oladele, Dunsi; Clark, Alexander M; Richter, Solina; Laing, Lory

2013-04-03

This paper presents critical realism (CR) as an innovative system for research in tobacco prevention and control. CR argues that underlying mechanisms are considered and explored to ensure effective implementation of any program/policy or intervention. Any intervention or program/policy that is transposed from one country to another or one setting to another is complex. The research was undertaken and analyzed through a critical ethnography lens using CR as a philosophical underpinning. The study relied upon the following components: original fieldwork in Nigeria including participant observation of smokers, in-depth interviews and focus groups with smokers, and in-depth interviews with health professionals working in the area of tobacco control in Nigeria. Findings from this small ethnographic study in Nigeria, suggest that Critical Realism holds promise for addressing underlying mechanism that links complex influences on smoking. This paper argues that understanding the underlying mechanisms associated with smoking in different societies will enable a platform for effective implementation of tobacco control policies that work in various settings.

The ‘WHAT OF’ and the ‘WHAT IF’ of Agential Realism

DEFF Research Database (Denmark)

Højgaard, Lis; Juelskjær, Malou; Søndergaard, Dorte Marie

2012-01-01

of data stipulates an opening of ‘WHAT OF’ of the activities in a world of computer games: WHAT OF the myriad of real and virtual voices, sentiments and actions and their interconnections and meaning for gendered subjectification? The second piece is guided by ‘WHAT IF’ thinking: WHAT would we be able...... to see IF we brought insights from quantum physics, i.e., spacetimemattering, to the conception of thinking subjects. The examples show that agential realism offers a theoretical framework that allows access to a much wider set of enacting forces to be considered in the analysis. By reading agential...

A Realism-Based View on Counts in OMOP's Common Data Model.

Science.gov (United States)

Ceusters, Werner; Blaisure, Jonathan

2017-01-01

Correctly counting entities is a requirement for analytics tools to function appropriately. The Observational Medical Outcomes Partnership's (OMOP) Common Data Model (CDM) specifications were examined to assess the extent to which counting in OMOP CDM compatible data repositories would work as expected. To that end, constructs (tables, fields and attributes) defined in the OMOP CDM as well as cardinality constraints and other business rules found in its documentation and related literature were compared to the types of entities and axioms proposed in realism-based ontologies. It was found that not only the model itself, but also a proposed standard algorithm for computing condition eras may lead to erroneous counting of several sorts of entities.

Establishing placement test fit and performance: Serving local needs

Directory of Open Access Journals (Sweden)

Gerriet Janssens

2013-07-01

Full Text Available Accountability in language education is often associated with top-down national policies unresponsive—or even hostile to—local needs; however, when accountability is driven by local stakeholders seeking to better understand and enhance their programs, it can foster productive cycles of action research and curriculum development. This paper reports on one such internally-motivated accountability effort, in which program insiders sought to determine the efficacy of a reading test being administered to a new population of students at one Colombian university. Descriptive statistics, reliability estimates, and item facility and discrimination measures were used to determine whether this test was sufficiently reliable and appropriately matched to test takers’ ability in order to warrant its use as part of a high-stakes English-language placement exam. A detailed analysis of this test is used not only to propose specific recommendations for revision but also to illustrate a useful set of statistical tools appropriate for test analysis in other language programs. Moreover, we conclude that the involvement of local instructors as part of an iterative, self-reflective, test development process provides opportunities for professional development and deeper engagement in accountability projects.

Realism versus simplicity in the snow routine of the HBV model

Science.gov (United States)

Girons Lopez, Marc; Vis, Marc; Seibert, Jan

2017-04-01

The HBV model still enjoys great popularity, in part because of its simplicity. Depicting the hydrological processes in a catchment in a simple way reduces data requirements and minimises parameter uncertainty. However, the representation of some processes might benefit from an increased model complexity. This is, for instance, the case of snow routine in the HBV-light version of the HBV model. HBV-light uses a degree-day method with a single threshold parameter to distinguish between rain and snow and simulate snow melt. Recent research has shown that hydrological models with a more realistic representation of snow processes might be more successful in estimating runoff. In this study we explore and test different improvements to the HBV-light snow routine design by considering different threshold temperature values for rain and snow distinction as well as for the beginning of snow melt, and introducing gradual transitions instead of the current sharp threshold. The use of radiation data, which recently became available as gridded data product in Switzerland, is an additional possibility. These modifications would allow for a more realistic depiction of important hydrological processes in alpine and other snow-covered areas while preserving the characteristic simplicity of HBV. Furthermore, in this contribution we evaluate the balance between introducing more realism into the snow routine of the HBV model and keeping the number of parameters as low as possible.

Overcoming the barrier of narrative adherence in conflicts through awareness of the psychological bias of naïve realism.

Science.gov (United States)

Nasie, Meytal; Bar-Tal, Daniel; Pliskin, Ruthie; Nahhas, Eman; Halperin, Eran

2014-11-01

One significant socio-psychological barrier for peaceful resolution of conflicts is each party's adherence to its own collective narrative. We hypothesized that raising awareness to the psychological bias of naïve realism and its identification in oneself would provide a path to overcoming this barrier, thus increasing openness to the adversary's narrative. We conducted three experimental studies in the context of the Israeli-Palestinian conflict. Studies 1 and 2, conducted among Jewish Israelis and Palestinian Israelis, respectively, revealed that participants with hawkish political ideology reported greater openness to the adversary's narrative when they were made aware of naïve realism bias. Study 3 revealed that hawkish participants at the baseline adhered to the ingroup narrative and resisted the adversary's narrative more than dovish participants. They were also more able to identify the bias in themselves upon learning about it. This identification may explain why the manipulation led to bias correction only among hawkish participants. © 2014 by the Society for Personality and Social Psychology, Inc.

Chameleon Effect, the Range of Values Hypothesis and Reproducing the EPR-Bohm Correlations

Science.gov (United States)

Accardi, Luigi; Khrennikov, Andrei

2007-02-01

We present a detailed analysis of assumptions that J. Bell used to show that local realism contradicts QM. We find that Bell's viewpoint on realism is nonphysical, because it implicitly assume that observed physical variables coincides with ontic variables (i.e., these variables before measurement). The real physical process of measurement is a process of dynamical interaction between a system and a measurement device. Therefore one should check the adequacy of QM not to "Bell's realism," but to adaptive realism (chameleon realism). Dropping Bell's assumption we are able to construct a natural representation of the EPR-Bohm correlations in the local (adaptive) realistic approach.

Locality and reality

International Nuclear Information System (INIS)

Stapp, H.P.

1980-01-01

Einstein's principle that no signal travels faster than light suggests that observations in one spacetime region should not depend on whether or not a radioactive decay is detected in a spacelike-separated region. This locality property is incompatible with the predictions of quantum theory, and this incompatibility holds independently of the questions of realism, objective reality, and hidden variables. It holds both in the pragmatic quantum theory of Bohr and in realistic frameworks. It is shown here to hold in a completed realistic quantum theory that reconciles Einstein's demand for a description of reality itself with Bohr's contention that quantum theory is complete. This completed realistic quantum theory has no hidden variables, and no objective reality in which observable attributes can become definite independently of observers. The theory is described in some detail, with particular attention to those aspects related to the question of locality. This completed realistic quantum theory is in principle more comprehensive than Bohn's pragmatic quantum theory because it is not limited in principle by the requirement that the observed system be physically separated from the observing one. Applications are discussed

From modernism to socialist realism in four years: Myaskovsky and Asafyev

Directory of Open Access Journals (Sweden)

Frolova-Walker Marina

2003-01-01

Full Text Available Two outstanding personalities of the Soviet musical life in the 1920's, the composer Nikolay Myaskovsky and the musicologist Boris Asafyev, both exponents of modernism, made volte-faces towards traditionalism at the beginning of the next decade. Myaskovsky's Symphony no. 12 (1931 and Asafyev's ballet The Flames of Paris (1932 became models for Socialist Realism in music. The letters exchanged between the two men testify to the formers uneasiness at the great success of those of his works he considered not valuable enough, whereas the latter was quite satisfied with his new career as composer. The examples of Myaskovsky and Asafyev show that early Soviet modernists made their move away from avant-garde creativity well before they faced any real danger from the bureaucracy.

Depressive realism: effects of depression severity and interpretation time.

Science.gov (United States)

McKendree-Smith, N; Scogin, F

2000-12-01

This study examined the theory of depressive realism, which posits that depressed people often are more accurate in perceptions and judgments than nondepressed people. Two possible qualifications to this theory were examined: (1) severity of depression moderates the effect, and (2) length of processing time will impact the presence of bias in depressed people, that is, negative bias will develop over time. College students were presented with a bogus personality profile that actually consisted of items previously rated as neutral in desirability. Participants rated these profiles for desirability initially and then again three days later. Results indicated a significant effect of depression severity on desirability rating. Nondepressed and mildly depressed students found their profiles to be more positive than the moderately/severely depressed students, with both groups having scores in the positive range. However, those participants who were moderately/severely depressed showed a negative bias in their ratings. No support was found for the effect of different times of interpretation.

A Measure of Psychological Realism on a Visual Simulator

Science.gov (United States)

Palmer, Everett; Petitt, John

1977-01-01

A FUNDAMENTAL question of simulation technology is how to determine if an aircraft simulation is creating the proper psychological space necessary to assess manned-system performance. The standard approach to this problem for visual simulators is to measure how well pilots can make approaches and landings on the simulator. Experiments of this type generally show that simulator performance is worse than actual landing performance and that there is an excessive amount of training required to reach acceptable performance. Unfortunately, in these experiments it is difficult to sort out the inadequacies of the visual subsystem from possible inadequacies in other simulator subsystems, such as the motion subsystem. This synoptic presents the results from one of a series of five experiments which attempted to provide direct measures of the psychological realism on a computer graphics night visual flight attachment. These experiments used experimental procedures and methodologies that psychologists have developed in their attempts to determine how people perceived visual space in the real world.

Depressive realism from the perspective of cognitive-experiential self-theory.

Science.gov (United States)

Pacini, R; Muir, F; Epstein, S

1998-04-01

To explain why the depressive realism effect has been found in trivial, artificial laboratory but not in more realistic or emotionally engaging situations, the authors hypothesized that depressed people overcompensate for a tendency toward maladaptive experiential (intuitive) processing by exercising excessive rational control in trivial situations. In more consequential situations, they are unable to control their maladaptive experiential processing because it is excessive, or their rational control is insufficient, or both. As predicted, a subclinically depressed group (n = 39) made more optimal decisions than a nondepressed control group (n = 36) under trivial conditions, and the groups converged under more consequential conditions, with the depressed group responding less and the control group more optimally. Also, the depressed group reported engaging in less rational processing and in more maladaptive experiential processing in everyday life than did the control group.

Magical Realism in the Holocaust Literature of the Postwar Generations

DEFF Research Database (Denmark)

Ortner, Jessica

2014-01-01

This article investigates the use of magical realism in two Holocaust novels written by the contemporary Austrian writers Doron Rabinovici and Robert Schindel, who both are descendants of Holocaust survivors. I will argue that Rabinovici and Schindel not only use the narrative technique of magic...... Schindel’s novel Born-Where (Gebürtig, 1994) visualize the situation of being torn between two contradictory perceptions of the world: on the one hand, the “normal” perception of the world, based on the present norms of society, and on the other hand, a perception of the traumatic world bestowed by family...... history, which clearly subverts those present norms. Whereas the magical element in The Search for M. is inherent in the contradictions of the story line, it is shown in a bewildering narrative structure in Born-Where (Genette, 1980)....

Optimistic bias and pessimistic realism in judgments of contingency with aversive or rewarding outcomes.

Science.gov (United States)

Sonoda, Akihito

2002-10-01

A depressive personality influences judgments of contingency. This is called "depressive realism." The present experiment examined whether optimistic traits, as measured by various scales, are correlated with judgments of contingency. The valences of the target stimuli were aversive or rewarding (noise avoidance or gaining points). Analysis indicated that the optimistic subjects (as measured by explanatory style for negative events) tend to overestimate noncontingent events; however, optimism measured by other scales did not show such an effect. The findings are discussed in terms of a self-defensive attributional bias.

Benjamin Cohen on global political order: when Keynes meets realism - and beyond

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Stefano Guzzini

2015-12-01

Full Text Available Abstract This article analyses the trajectory of Benjamin J. Cohen's work by focusing on his ongoing concern with the nature and governance of world order. It does so by playing out his debt to realism and to Keynesianism. In a first moment, Cohen criticises the economic determinism of dependency scholarship, while turning to political realism, and then to possible Keynesian co-operation under anarchy: agents have the power to affect positive change. Later, Cohen the disillusioned Keynesian, watching how the possible reform of financial markets is marginalised by politicians and academics alike, shifts his analysis to more structural aspects of governance or rule that affect actors' preferences. I draw two conclusions. First, in this shift towards theorising the global political order away from steering capacity towards impersonal rule and bias, Cohen also questions the very setup of the theories with which we deal with that world - only to see that this very inspiration of original IPE is abandoned in the course of the ongoing 'professionalisation' of IPE as practised in the United States. Second, his analysis seems to incorporate a warning. The underlying grand question is nothing less than the bargain between capitalism and liberal democracy as we know it, since the present system undermines equality before the law - money trumps equal political rights - and undermines democratic accountability. One of the main achievements of the post-war Keynesian turn was the reappropriation of political space from anti-democratic forces. Therefore, the decline of Keynesianism could provoke a Polanyian nightmare in which the 'double movement' by which the laissez-faire is answered by moves to protect society does not strengthen democracies, as in earlier times of 'embedded liberalism', but undermines them instead.

Problem-Solving Test: Submitochondrial Localization of Proteins

Science.gov (United States)

Szeberenyi, Jozsef

2011-01-01

Mitochondria are surrounded by two membranes (outer and inner mitochondrial membrane) that separate two mitochondrial compartments (intermembrane space and matrix). Hundreds of proteins are distributed among these submitochondrial components. A simple biochemical/immunological procedure is described in this test to determine the localization of…

John Anderson's development of (situational) realism and its bearing on psychology today.

Science.gov (United States)

Hibberd, Fiona J

2009-10-01

In 1927, the Scottish philosopher John Anderson arrived in Australia to take up the chair of Philosophy at the University of Sydney. By the late 1930s, the "macrostructure" of his realist system was in place. It includes a theory of process and a substantial metaphysics, one that opposes positivism, linguistic philosophy and all forms of idealism. However, beyond Australia it remains largely unknown, despite its bearing on a number of current issues in psychology and the social sciences generally. This article outlines Anderson's transition from Hegelian idealism to realism, describes aspects of his ontology and epistemology, compares some of Anderson's ideas with Dewey's pragmatism and explains their relevance to present-day psychology.

The EPR paradox, Bell's inequality, and the question of locality

Science.gov (United States)

Blaylock, Guy

2010-01-01

Most physicists agree that the Einstein-Podolsky-Rosen-Bell paradox exemplifies much of the strange behavior of quantum mechanics, but argument persists about what assumptions underlie the paradox. To clarify what the debate is about, we employ a simple and well-known thought experiment involving two correlated photons to help us focus on the logical assumptions needed to construct the EPR and Bell arguments. The view presented in this paper is that the minimal assumptions behind Bell's inequality are locality and counterfactual definiteness but not scientific realism, determinism, or hidden variables as are often suggested. We further examine the resulting constraints on physical theory with an illustration from the many-worlds interpretation of quantum mechanics—an interpretation that we argue is deterministic, local, and realist but that nonetheless violates the Bell inequality.

Falsification of Leggett's model using neutron matter waves

International Nuclear Information System (INIS)

Hasegawa, Yuji; Sponar, Stephan; Durstberger-Rennhofer, Katharina; Badurek, Gerald; Schmitzer, Claus; Bartosik, Hannes; Klepp, Jürgen

2012-01-01

According to Bell's theorem, no theory based on the joint assumption of realism and locality can reproduce certain predictions of quantum mechanics. Another class of realistic models, proposed by Leggett, that demands realism but abandons reliance on locality, is predicted to be in conflict with quantum mechanics. In this paper, we report on an experimental test of a contextual realistic model analogous to the model of Leggett performed with matter waves, more precisely with neutrons. Correlation measurements of the spin-energy entangled single-particle system show violation of a Leggett-type inequality by more than 7.6 standard deviations. Our experimental data falsify the contextual realistic model and are fully in favor of quantum mechanics. (paper)

Comparison of aquifer characteristics derived from local and regional aquifer tests.

Science.gov (United States)

Randolph, R.B.; Krause, R.E.; Maslia, M.L.

1985-01-01

A comparison of the aquifer parameter values obtained through the analysis of a local and a regional aquifer test involving the same area in southeast Georgia is made in order to evaluate the validity of extrapolating local aquifer-test results for use in large-scale flow simulations. Time-drawdown and time-recovery data were analyzed by using both graphical and least-squares fitting of the data to the Theis curve. Additionally, directional transmissivity, transmissivity tensor, and angle of anisotropy were computed for both tests. -from Authors Georgia drawdown transmissivity regional aquifer tests

“They All Lived Happily Ever After. Obviously” : Realism and Utopia in Game of Thrones-Based Alternate Universe Fairy Tale Fan Fiction, Special Issue “Fairy Tale and its Uses in Contemporary New Media and Popular Culture,” Ed Claudia Schwabe

NARCIS (Netherlands)

Kustritz, A.M.

2016-01-01

Fan fiction alternate universe stories (AUs) that combine Game of Thrones characters and settings with fairy tale elements construct a dialogue between realism and wonder. Realism performs a number of functions in various genres, but becomes a particularly tricky concept to tie down in fantasy.

The Interactive Effects of Color Realism, Clustering, and Age on Pictorial Recall Memory among Students in Malaysia

OpenAIRE

Shaari, Ahmad Jelani

1998-01-01

This study investigates the effects of clustering or format of presentation (categorized and uncategorized lists), level of color realism of graphics (color pictures, black and white pictures and line drawings), and age (10 year old, 16 year old and adults) on the pictorial recall memory among students in Malaysia. Three hundred sixty students of three age groups were randomly assigned to one of the six stimulus treatments (categorized color, uncategorized color, categorized black and white, ...

Narration, realism and authorship in History and in the novel

Directory of Open Access Journals (Sweden)

Renato Prelorentzou

2014-06-01

Full Text Available The present article intends to represent a process of rereading, rewriting, reusing and reflecting about certain contemporary novel and historiography authors. In common, these novelists and historians have a way of writing that emphasizes the act of writing itself (or their own act of writing and, therefore, put their narrators in another discourse position when considering both the realist aesthetic and the historiographycal rhetoric. By textual procedures that describe and simulate acts of drafting, erasing, rewriting, revising, rebuting, and reopening, the authors in question put themselves into the text, questioning and reformulating not only the so called formal realism from the 18th century but also the historical research and its empirical method linked to the 19th century – both schools that survived and thrived for the last hundred years. In writing this article – reading, analyzing and rereading these authors – we could reflect on how academic texts are written.

Ontological Realism for the Research Domain Criteria for Mental Disorders.

Science.gov (United States)

Ceusters, Werner; Jensen, Mark; Diehl, Alexander D

2017-01-01

At the heart of the Research Domain Criteria for Mental Disorders is a matrix in which functional aspects of behavior are related to genotypic and (endo-)phenotypic research findings, and the various techniques through which they can been observed. The matrix is work in progress. As such it currently suffers from several shortcomings, the resolution of which, we contend, are essential to success of NIMH's goal of fostering translational science on mental disorders. Using well-established criteria for assessing the terminological and ontological quality of biomedical representations we identified the major problems to be (1) the abundant presence of terms that lack face value, (2) the absence of what the exact nature of the represented relationships are, and (3) referential imprecision with respect to the intended granularity of what the terms denote. We propose to eliminate these shortcomings by resorting to definitions and formal representations under the umbrella of Ontological Realism as they already have been developed in the areas of mental health, anatomy and biological functions.

Educational program in crisis management for cardiac surgery teams including high realism simulation.

Science.gov (United States)

Stevens, Louis-Mathieu; Cooper, Jeffrey B; Raemer, Daniel B; Schneider, Robert C; Frankel, Allan S; Berry, William R; Agnihotri, Arvind K

2012-07-01

Cardiac surgery demands effective teamwork for safe, high-quality care. The objective of this pilot study was to develop a comprehensive program to sharpen performance of experienced cardiac surgical teams in acute crisis management. We developed and implemented an educational program for cardiac surgery based on high realism acute crisis simulation scenarios and interactive whole-unit workshop. The impact of these interventions was assessed with postintervention questionnaires, preintervention and 6-month postintervention surveys, and structured interviews. The realism of the acute crisis simulation scenarios gradually improved; most participants rated both the simulation and whole-unit workshop as very good or excellent. Repeat simulation training was recommended every 6 to 12 months by 82% of the participants. Participants of the interactive workshop identified 2 areas of highest priority: encouraging speaking up about critical information and interprofessional information sharing. They also stressed the importance of briefings, early communication of surgical plan, knowing members of the team, and continued simulation for practice. The pre/post survey response rates were 70% (55/79) and 66% (52/79), respectively. The concept of working as a team improved between surveys (P = .028), with a trend for improvement in gaining common understanding of the plan before a procedure (P = .075) and appropriate resolution of disagreements (P = .092). Interviewees reported that the training had a positive effect on their personal behaviors and patient care, including speaking up more readily and communicating more clearly. Comprehensive team training using simulation and a whole-unit interactive workshop can be successfully deployed for experienced cardiac surgery teams with demonstrable benefits in participant's perception of team performance. Copyright © 2012 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.

Radiation doses to local populations near nuclear weapons test sites worldwide.

Science.gov (United States)

Simon, Steven L; Bouville, André

2002-05-01

Nuclear weapons testing was conducted in the atmosphere at numerous sites worldwide between 1946 and 1980, which resulted in exposures to local populations as a consequence of fallout of radioactive debris. The nuclear tests were conducted by five nations (United States, Soviet Union, United Kingdom, France, and China) primarily at 16 sites. The 16 testing sites, located in nine different countries on five continents (plus Oceania) contributed nearly all of the radioactive materials released to the environment by atmospheric testing; only small amounts were released at a fewother minor testing sites. The 16 sites discussed here are Nevada Test Site, USA (North American continent), Bikini and Enewetak, Marshall Islands (Oceania); Johnston Island, USA (Oceania), Christmas and Malden Island, Kiribati (Oceania); Emu Field, Maralinga, and Monte Bello Islands, Australia (Australian continent); Mururoa and Fangataufa, French Polynesia (Oceania), Reggane, Algeria (Africa), Novaya Zemlya and Kapustin Yar, Russia (Europe), Semipalatinsk, Kazakhstan (Asia), and Lop Nor, China (Asia). There were large differences in the numbers of tests conducted at each location and in the total explosive yields. Those factors, as well as differences in population density, lifestyle, environment, and climate at each site, led to large differences in the doses received by local populations. In general, the tests conducted earliest led to the highest individual and population exposures, although the amount of information available for a few of these sites is insufficient to provide any detailed evaluation of radiation exposures. The most comprehensive information for any site is for the Nevada Test Site. The disparities in available information add difficulty to determining the radiation exposures of local populations at each site. It is the goal of this paper to summarize the available information on external and internal doses received by the public living in the regions near each of the

Tests of Local Hadron Calibration Approaches in ATLAS Combined Beam Tests

International Nuclear Information System (INIS)

Grahn, Karl-Johan; Kiryunin, Andrey; Pospelov, Guennadi

2011-01-01

Three ATLAS calorimeters in the region of the forward crack at |η| 3.2 in the nominal ATLAS setup and a typical section of the two barrel calorimeters at |η| = 0.45 of ATLAS have been exposed to combined beam tests with single electrons and pions. Detailed shower shape studies of electrons and pions with comparisons to various Geant4 based simulations utilizing different physics lists are presented for the endcap beam test. The local hadron calibration approach as used in the full Atlas setup has been applied to the endcap beam test data. An extension of it using layer correlations has been tested with the barrel test beam data. Both methods utilize modular correction steps based on shower shape variables to correct for invisible energy inside the reconstructed clusters in the calorimeters (compensation) and for lost energy deposits outside of the reconstructed clusters (dead material and out-of-cluster deposits). Results for both methods and comparisons to Monte Carlo simulations are presented.

Microscopic and macroscopic bell inequalities

International Nuclear Information System (INIS)

Santos, E.

1984-01-01

The Bell inequalities, being derived for micro-systems, cannot be tested by (macroscopic) experiments without additional assumptions. A macroscopic definition of local realism is proposed which might be the starting point for deriving Bell inequalities testable without auxiliary assumptions. (orig.)

Can Virtual Reality Increase the Realism of Role Plays Used to Teach College Women Sexual Coercion and Rape-Resistance Skills?

Science.gov (United States)

Jouriles, Ernest N.; McDonald, Renee; Kullowatz, Antje; Rosenfield, David; Gomez, Gabriella S.; Cuevas, Anthony

2009-01-01

The present study evaluated whether virtual reality (VR) can enhance the realism of role plays designed to help college women resist sexual attacks. Sixty-two female undergraduate students were randomly assigned to either the Role Play (RP) or Virtual Role Play (VRP) conditions, which were differentiated only by the use of VR technology in the VRP…

Haptic feedback for enhancing realism of walking simulations.

Science.gov (United States)

Turchet, Luca; Burelli, Paolo; Serafin, Stefania

2013-01-01

In this paper, we describe several experiments whose goal is to evaluate the role of plantar vibrotactile feedback in enhancing the realism of walking experiences in multimodal virtual environments. To achieve this goal we built an interactive and a noninteractive multimodal feedback system. While during the use of the interactive system subjects physically walked, during the use of the noninteractive system the locomotion was simulated while subjects were sitting on a chair. In both the configurations subjects were exposed to auditory and audio-visual stimuli presented with and without the haptic feedback. Results of the experiments provide a clear preference toward the simulations enhanced with haptic feedback showing that the haptic channel can lead to more realistic experiences in both interactive and noninteractive configurations. The majority of subjects clearly appreciated the added feedback. However, some subjects found the added feedback unpleasant. This might be due, on one hand, to the limits of the haptic simulation and, on the other hand, to the different individual desire to be involved in the simulations. Our findings can be applied to the context of physical navigation in multimodal virtual environments as well as to enhance the user experience of watching a movie or playing a video game.

O que há de real e de irreal com o realismo: Searle versus Rorty What there is of real and unreal in Realism: Searle versus Rorty

Directory of Open Access Journals (Sweden)

Paulo Ghiraldelli Júnior

1999-01-01

Full Text Available O texto fala a respeito do debate entre Searle e Rorty sobre "irracionalismo" de Rorty. Ele tenta mostrar que a posição de Rorty está fora do campo "realismo versus anti-realismo" e o "irracionalismo" não é um bom adjetivo. Searle estaria sobre uma linha incorreta em sua abordagem do tema da verdade em Rorty.The article talks about debate between Searle and Rorty on a "irrationalism" of Rorty. The text tries to show that the Rorty's position is out of the field "Realism versus Anti Realism" and the "irracionalism" is not a good adjective. Searle would be on a incorrect line in his account of the Rorty's theme of truth.

IN SEARCH OF REALITY – ABOUT REALISM IN DANISH CONTEMPORARY PROSE

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Aldona Zanko

2011-01-01

Full Text Available The article deals with one of the main streams in Danish contemporary literature, namely the realistic minimalism. Minimalism appeared in Danish contemporary literature at the beginning of the 1990-ties. It was developed by the first generation of writers, who graduated at that time from The Danish School of Writers (Forfatterskolen, founded in 1987 in Copenhagen by the Danish modernist poet and literary critic Poul Borum. The first graduates from The Danish School of Writers wrote mainly short stories, characterized by economy of words and focus on surface description. Due to their form as well as subject matter the works written by Danish minimalists are often called for snapshots of everyday life in nowadays Denmark. Soon after that great outburst of minimalism in Danish literature from the early 90’ties the critics proclaimed the so-called “return to reality” in Danish contemporary literature. Owing to that remarkable phenomenon minimalist literature composed by Danish contemporary writers is often described as a renewed version of realism, whose roots go back to the 70-ties and the 80-ties of the 19th century. The present article gives a brief characteristics of the main features typical of the Danish minimalist realism, which have been discussed in the light of the first wave of realistic literature that came to Denmark in the second half of 19th century. In this way the author compares two related, but though different literary techniques practised by the two generations of Danish realists: the contemporary on the one hand, among whom the author mentions such names as Christina Hesselholdt, Helle Helle and Solvej Balle, as well as their forefathers on the other, where the author respectively refers to Herman Bang, Jens Peter Jacobsen and Henrik Pontoppidan. On the basis of this comparison the author seeks to point out the similarities and the differences between the two series of literary accounts of the Danish reality with regard

Rewriting rural community and dictatorial history through magical realism in Márquez’s One Hundred Years of Solitude

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Abdullah Abu Shahid

2015-05-01

Full Text Available Márquez was greatly influenced by his grandmother’s story-telling ability, and was highly indebted to the socio-political history of Latin America, particularly Colombia. In One Hundred Years of Solitude, he wants to reconstruct the lost world of childhood by using magical realism which gives expression to the world-view of a rural people who live in isolation from modern world. By retelling the official history from the perspective of the oppressed, he reveals the fact that history is never factual and impartial but serves the interest of those who write it. Through the banana company massacre and the subsequent hide and seek over the number of dead workers, Márquez exposes the way official history becomes fabricated and distorted by authorities, and fails to provide the original occurrences. He was disgusted with the political violence and civil wars which had distraught people; he was also against capitalism, scientific and technological inventions, and so-called modernization, which are the means through which foreign culture brings corruption and brutality, dominates, exploits and oppresses the natives, and threatens the native culture and identity. By employing magical realism, he was able to recreate Colombian history to protest against the way capitalism dominated the socio-political and economic structure of the region.

Precocious realists: perceptual and cognitive characteristics associated with drawing talent in non-autistic children

Science.gov (United States)

Drake, Jennifer E.; Winner, Ellen

2009-01-01

A local processing bias in the block design task and in drawing strategy has been used to account for realistic drawing skill in individuals with autism. We investigated whether the same kind of local processing bias is seen in typically developing children with unusual skill in realistic graphic representation. Forty-three 5–11-year-olds who drew a still life completed a version of the block design task in both standard and segmented form, were tested for their memory for the block design items, and were given the Kaufmann Brief Intelligence Test-II. Children were classified as gifted, moderately gifted or typical on the basis of the level of realism in their drawings. Similar to autistic individuals, the gifted group showed a local processing bias in the block design task. But unlike autistic individuals, the gifted group showed a global advantage in the visual memory task and did not use a local drawing strategy; in addition, their graphic realism skill was related to verbal IQ. Differences in the extent of local processing bias in autistic and typically developing children with drawing talent are discussed. PMID:19528030

Accardi contra Bell (cum mundi) : the impossible coupling

NARCIS (Netherlands)

Gill, R.D.

2001-01-01

An experimentally observed violation of Bell s inequality is supposed to show the failure of local realism to deal with quantum reality. However, finite statistics and the time sequential nature of real experiments still allows a loophole for local realism. We show that the randomised design of

Entanglement swapping of noisy states: A kind of superadditivity in nonclassicality

International Nuclear Information System (INIS)

Sen, Aditi; Sen, Ujjwal; Brukner, Caslav; Buzek, Vladimir; Zukowski, Marek

2005-01-01

We address the question as to whether an entangled state that satisfies local realism will give a violation of the same after entanglement swapping in a suitable scenario. We consider such a possibility as a kind of superadditivity in nonclassicality. Importantly, it will indicate that checking for violation of local realism, in the state obtained after entanglement swapping, can be a method for detecting entanglement in the input state of the swapping procedure. We investigate various entanglement swapping schemes, which involve mixed initial states. The strength of violation of local realism by the state obtained after entanglement swapping is compared with the one for the input states. We obtain a kind of superadditivity of violation of local realism for Werner states, consequent upon entanglement swapping involving Greenberger-Horne-Zeilinger-state measurements. We also discuss whether entanglement swapping of specific states may be used in quantum repeaters with a substantially reduced need to perform the entanglement distillation step

Micromechanical local approach to brittle failure in bainite high resolution polycrystals: A short presentation

International Nuclear Information System (INIS)

N'Guyen, C.N.; Osipov, N.; Cailletaud, G.; Barbe, F.; Marini, B.; Petry, C.

2012-01-01

The problem of determining the probability of failure in a brittle material from a micromechanical local approach has recently been addressed in few works, all related to bainite polycrystals at different temperatures and states of irradiation. They have separately paved the ground for a full-field modelling with high realism in terms of constitutive modelling and microstructural morphology. This work first contributes to enhance this realism by assembling the most pertinent/valuable characteristics (dislocation density based model, large deformation framework, fully controlled triaxiality conditions, explicit microstructure representation of grains and sub-grains,... ) and by accounting for a statistically representative Volume Element; this condition indeed must be fulfilled in order to capture rare events like brittle micro-fractures which, in the stress analysis, correspond to the tails of distribution curves. The second original contribution of this work concerns the methodology for determining fracture probabilities: rather than classically - and abruptly - considering a polycrystal as broken as soon as an elementary link (grain or sub-grain) has failed, the possibility of microcrack arrest at microstructural barriers is introduced, which enables to determine the probability of polycrystal failure according to different scenarios of multiple micro-fractures. (authors)

The realism problem of quantum mechanics in view of the decoherence interpretation; Das Realismus-Problem der Quantenmechanik angesichts der Dekohaerenz-Interpretation

Energy Technology Data Exchange (ETDEWEB)

Messer, Joachim August

2007-07-01

Quantum mechanics in the conception, as it is today present, contains - what concerns its conceivable understanding and its interpretation - numerous paradoxa. The best known Copenhagen interpretation is critized and other interpretations, as the many-world interpretation and the modern, today mostly attended decoherence interpretation are put to this describingly on side. Axiomatic explanation attempts, like those from Mackey, Jauch, and Piron are analyzed and the measurement problem discussed from three ways of view: the introduction of a cut by Georg Suessmann, the scaling formalism from Klaus Hepp, and the philosophy from Bernulf Kanitschneider. Especially the critique given by Albert Einstein on the Bohr-Heisenberg Copenhagen interpretation and the completeness of a realistic quantum theory by the EPR thought experiment (called from Einstein, Podolsky, and Rosen) is more detailedly studied and extended to a holomorphic realism, in which the measurement quantities become visible as boundary values of a holomorphic function. This analytic continuation throws a new light on the body-soul parallelism, which exceeds the positions of Platon and Feigl. Beside the decoherence also the superselection rules, which are extensively discussed, are an example for a realistic state reduction - however the nonlocality of realistic quantum mechanics forces to a dualism of Higgs' symmetry breaking with local decoherence in the terrestrial laboratory. The position of a holomorphic barycentric realism is worked out by regress to the quantum field theory of Lehmann, Symanzik, and Zimmermann (LSZ) with its reduction formula. Quantum-cosmological implications, non-commutative geometry, K theory, and background field are also discussed. The newly designed knowledge theory of the holomorphic, barycentric realism - which in the classical limit goes over in a critical realism - forms also a bridge to a deepened humanism, which cannot be constructed from purely classical physics. As

The realism problem of quantum mechanics in view of the decoherence interpretation; Das Realismus-Problem der Quantenmechanik angesichts der Dekohaerenz-Interpretation

Energy Technology Data Exchange (ETDEWEB)

Messer, Joachim August

2007-07-01

Quantum mechanics in the conception, as it is today present, contains - what concerns its conceivable understanding and its interpretation - numerous paradoxa. The best known Copenhagen interpretation is critized and other interpretations, as the many-world interpretation and the modern, today mostly attended decoherence interpretation are put to this describingly on side. Axiomatic explanation attempts, like those from Mackey, Jauch, and Piron are analyzed and the measurement problem discussed from three ways of view: the introduction of a cut by Georg Suessmann, the scaling formalism from Klaus Hepp, and the philosophy from Bernulf Kanitschneider. Especially the critique given by Albert Einstein on the Bohr-Heisenberg Copenhagen interpretation and the completeness of a realistic quantum theory by the EPR thought experiment (called from Einstein, Podolsky, and Rosen) is more detailedly studied and extended to a holomorphic realism, in which the measurement quantities become visible as boundary values of a holomorphic function. This analytic continuation throws a new light on the body-soul parallelism, which exceeds the positions of Platon and Feigl. Beside the decoherence also the superselection rules, which are extensively discussed, are an example for a realistic state reduction - however the nonlocality of realistic quantum mechanics forces to a dualism of Higgs' symmetry breaking with local decoherence in the terrestrial laboratory. The position of a holomorphic barycentric realism is worked out by regress to the quantum field theory of Lehmann, Symanzik, and Zimmermann (LSZ) with its reduction formula. Quantum-cosmological implications, non-commutative geometry, K theory, and background field are also discussed. The newly designed knowledge theory of the holomorphic, barycentric realism - which in the classical limit goes over in a critical realism - forms also a bridge to a deepened humanism, which cannot be constructed from purely classical physics. As

Violation of local realism by a system with N spin-(1/2) particles

International Nuclear Information System (INIS)

Wu, Xiao-Hua; Zong, Hong-Shi

2003-01-01

Recently, it was found that Mermin's inequalities may not always be optimal for the refutation of a local realistic description [Phys. Rev. Lett. 88, 210402 (2002)]. To complete this work, we derive an inequality for the Greenberger-Horne-Zeilinger-type pure state for a system with N spin-(1/2) particles and the violation of the inequality can be shown for all the non product pure states. Mermin's inequality for a system of N spin-(1/2) particles and Gisin's theorem for a system of two spin-(1/2) particles are both included in our inequality

Future Orientation among Caucasian and Arab-American Adolescents: The Role of Realism About Child-Rearing and Perceptions of Others' Acceptance of Adolescent Pregnancy

Science.gov (United States)

Mirza, Saima A.; Somers, Cheryl L.

2004-01-01

Future orientation in adolescents is an important concept to study because of its relations with academic performance and success levels. This study examined adolescents' realism about childrearing and their perceptions of others' approval of teen pregnancy to examine their association with future orientation. Participants were 476 high…

Where Bell Went Wrong

International Nuclear Information System (INIS)

Nieuwenhuizen, Th. M.

2009-01-01

It is explained on a physical basis how absence of contextuality allows Bell inequalities to be violated, without bringing an implication on locality or realism. Hereto we connect first to the local realistic theory Stochastic Electrodynamics, and then put the argument more broadly. Thus even if Bell Inequality Violation is demonstrated beyond reasonable doubt, it will have no say on local realism.

The Impact of Acquisition Issues and Training on Test and Evaluation

Science.gov (United States)

2000-01-01

feedback on the OT results before a milestone review and then delivering the OT report, with surprises, virtually at the review. Test Realism There...of the R3D/100 Chip Set and Simulation Heritage. MLRS WE’RE IN THE ARMY NOW TE 14(1 Video, 15 Mins) Cinematics - LTV Aerospace & Defense

FAIRY-TALE REALISM. HANS CHRISTIAN ANDERSEN AND THE MODERN WORLD OF THINGS

Directory of Open Access Journals (Sweden)

Frederike Felcht

2013-01-01

Full Text Available According to recent research in literary studies, literature has a specific knowledge about things. My contribution supports this thesis by analyzing the world of things in Hans Christian Andersen's fairy tales. Exemplary readings reveal how Andersen's texts acknowledge the power of things in modern life and how these texts thus question scientific and philosophical concepts of subjectivity that dominated in the nineteenth century. The agency of things in Andersen's texts challenges the ideal of a rational subject that acts autonomously. Current theoretical approaches, notably Actor-Network-Theory, allow us to understand the realism of acting things in Andersen's work. That which is marvelous, which is prevalently used to define the genre Fairy Tale in literary studies, is inherent to modernity. The relationship between magic and modernity is different than expected: modernity consists of an interplay between enchantment and disenchantment

FAIRY-TALE REALISM. HANS CHRISTIAN ANDERSEN AND THE MODERN WORLD OF THINGS

Directory of Open Access Journals (Sweden)

Frederike Felcht

2013-01-01

Full Text Available According to recent research in literary studies, literature has a specific knowledge about things. My contribution supports this thesis by analyzing the world of things in Hans Christian Andersen's fairy tales. Exemplary readings reveal how Andersen's texts acknowledge the power of things in modern life and how these texts thus question scientific and philosophical concepts of subjectivity that dominated in the nineteenth century. The agency of things in Andersen's texts challenges the ideal of a rational subject that acts autonomously. Current theoretical approaches, notably Actor-Network-Theory, allow us to understand the realism of acting things in Andersen's work. That which is marvelous, which is prevalently used to define the genre Fairy Tale in literary studies, is inherent to modernity. The relationship between magic and modernity is different than expected: modernity consists of an interplay between enchantment and disenchantment.

Hacking the Bell test using classical light in energy-time entanglement-based quantum key distribution.

Science.gov (United States)

Jogenfors, Jonathan; Elhassan, Ashraf Mohamed; Ahrens, Johan; Bourennane, Mohamed; Larsson, Jan-Åke

2015-12-01

Photonic systems based on energy-time entanglement have been proposed to test local realism using the Bell inequality. A violation of this inequality normally also certifies security of device-independent quantum key distribution (QKD) so that an attacker cannot eavesdrop or control the system. We show how this security test can be circumvented in energy-time entangled systems when using standard avalanche photodetectors, allowing an attacker to compromise the system without leaving a trace. We reach Bell values up to 3.63 at 97.6% faked detector efficiency using tailored pulses of classical light, which exceeds even the quantum prediction. This is the first demonstration of a violation-faking source that gives both tunable violation and high faked detector efficiency. The implications are severe: the standard Clauser-Horne-Shimony-Holt inequality cannot be used to show device-independent security for energy-time entanglement setups based on Franson's configuration. However, device-independent security can be reestablished, and we conclude by listing a number of improved tests and experimental setups that would protect against all current and future attacks of this type.

Perceived realism moderates the relation between sexualized media consumption and permissive sexual attitudes in Dutch adolescents.

Science.gov (United States)

Baams, Laura; Overbeek, Geertjan; Dubas, Judith Semon; Doornwaard, Suzan M; Rommes, Els; van Aken, Marcel A G

2015-04-01

This study examined whether the development of sexualized media consumption and permissive sexual attitudes would be more strongly interrelated when adolescents perceived sexualized media images as highly realistic. We used data from a three-wave longitudinal sample of 444 Dutch adolescents aged 13-16 years at baseline. Results from parallel process latent growth modeling multigroup analyses showed that higher initial levels of sexualized media consumption were associated with higher initial level of permissive sexual attitudes. Moreover, increases of sexualized media consumption over time were associated with increases of permissive sexual attitudes over time. Considering the moderation by perceived realism, we found these effects only for those who perceived sexualized media as more realistic. Findings for male and female adolescents were similar except for the relations between initial levels and subsequent development. Among male adolescents who perceived sexualized media images to be realistic, higher initial levels of permissive sexual attitudes were related to subsequent less rapid development of sexualized media consumption. For male adolescents who perceived sexualized media to be less realistic, higher initial levels of sexualized media consumption were related to a subsequent less rapid development of permissive sexual attitudes. These relations were not found for female adolescents. Overall, our results suggest that, in male and female adolescents, those with a high level of perceived realism showed a correlated development of sexualized media consumption and permissive sexual attitudes. These findings point to a need for extended information on how to guide adolescents in interpreting and handling sexualized media in everyday life.

Using Testlet Response Theory to Examine Local Dependence in C-Tests

Science.gov (United States)

Eckes, Thomas; Baghaei, Purya

2015-01-01

C-tests are gap-filling tests widely used to assess general language proficiency for purposes of placement, screening, or provision of feedback to language learners. C-tests consist of several short texts in which parts of words are missing. We addressed the issue of local dependence in C-tests using an explicit modeling approach based on testlet…

Tests of non-local interferences in kaon physics at asymmetric φ-factories

International Nuclear Information System (INIS)

Eberhard, P.H.

1993-01-01

Tests of non-local interference effects in the two-kaon system are proposed. The first kind of tests consists of measuring the amount of destructive interference between K S → K L regeneration processes of two distant kaons. The second kind deals with constructive interference. These tests could be performed at an asymmetric φ-factory. Estimates are given of the number of events predicted by orthodox quantum mechanics and kaon regeneration theory in various suitable experimental conditions. The impact on local theories if the predictions of quantum mechanics hold is discussed

Two-player quantum pseudotelepathy based on recent all-versus-nothing violations of local realism

International Nuclear Information System (INIS)

Cabello, Adan

2006-01-01

We introduce two two-player quantum pseudotelepathy games based on two recently proposed all-versus-nothing (AVN) proofs of Bell's theorem [A. Cabello, Phys. Rev. Lett. 95, 210401 (2005); Phys. Rev. A 72, 050101(R) (2005)]. These games prove that Broadbent and Methot's claim that these AVN proofs do not rule out local-hidden-variable theories in which it is possible to exchange unlimited information inside the same light cone (quant-ph/0511047) is incorrect

A Critique of the Theories of Global Justice: Realism, Rawls, Habermas and Pogge

Directory of Open Access Journals (Sweden)

Francisco Cortés Rodas

2010-04-01

Full Text Available This paper discusses some of the proposals raised within the contemporary debate about normative models for a new international order. In the first part, the argumentative strategies of political realism, of John Rawls’ liberalism and of Jürgen Habermas’ deliberative model are presented. These authors’ objections to the cosmopolitan idea of a transformation in the international order based on the demands for global economic justice are debated. In the last part, the text shows that the proposal f global justice presented by Thomas Pogge is insufficient because, although it shows the implication of the global economic order in the increase of poverty and formulates a global redistributive proposal, it does not consider the problem of the transformation of the prevailing system of power relations within the current capitalist order.

Can a virtual supermarket bring realism into the lab? Comparing shopping behavior using virtual and pictorial store representations to behavior in a physical store

NARCIS (Netherlands)

Herpen, van Erica; Broek, van den Eva; Trijp, van Hans C.M.; Yu, Tian

2016-01-01

Immersive virtual reality techniques present new opportunities for research into consumer behavior. The current study examines whether the increased realism of a virtual store compared to pictorial (2D) stimuli elicits consumer behavior that is more in line with behavior in a physical store. We

Localized strain measurements of the intervertebral disc annulus during biaxial tensile testing.

Science.gov (United States)

Karakolis, Thomas; Callaghan, Jack P

2015-01-01

Both inter-lamellar and intra-lamellar failures of the annulus have been described as potential modes of disc herniation. Attempts to characterize initial lamellar failure of the annulus have involved tensile testing of small tissue samples. The purpose of this study was to evaluate a method of measuring local surface strains through image analysis of a tensile test conducted on an isolated sample of annular tissue in order to enhance future studies of intervertebral disc failure. An annulus tissue sample was biaxial strained to 10%. High-resolution images captured the tissue surface throughout testing. Three test conditions were evaluated: submerged, non-submerged and marker. Surface strains were calculated for the two non-marker conditions based on motion of virtual tracking points. Tracking algorithm parameters (grid resolution and template size) were varied to determine the effect on estimated strains. Accuracy of point tracking was assessed through a comparison of the non-marker conditions to a condition involving markers placed on tissue surface. Grid resolution had a larger effect on local strain than template size. Average local strain error ranged from 3% to 9.25% and 0.1% to 2.0%, for the non-submerged and submerged conditions, respectively. Local strain estimation has a relatively high potential for error. Submerging the tissue provided superior strain estimates.

Applicability of Mixolab test with local wheat flours

Directory of Open Access Journals (Sweden)

Daniel Vazquez

2015-04-01

Full Text Available Several types of equipment have been used to predict dough behaviour during breadmaking. The complexity of requirements means that no device is able to predict all the properties, and therefore, new tests are released continuously. The Chopin Mixolab mixes the dough at different temperatures, allowing the study of dough mixing properties, weakening, gelatinization, gel stability and retrogradation in one test. The objective of this work was to study the suitability of the Mixolab to predict rheological properties and breadmaking quality of local wheats. Flour was obtained from 29 wheat samples  from different genotypes and environments. The correlation of results from traditional analyses  (test weight, protein content, sedimentation volume, wet gluten, Falling Number, Alveograph and Farinograph  with Mixolab parameters was studied. The properties of two different bread types were compared with all these parameters. Stability and water absorption values from the Farinograph were highly correlated with the respective Mixolab parameters. It was concluded that wheat samples could be sorted by mixing properties in similar order independently of which method was used. Beyond that, gluten strength estimators obtained from these three rheological methods and the sedimentation volume test were highly correlated. Whilst the correlation of Mixolab parameters with pan loaf volume was not as high as traditional ones, Mixolab developing time, stability and C5 were the best correlated with the most important hearth bread characteristics. Studies performed by other researchers, using wheats from diverse origins, found different results. The need for empirical rheology evaluation with local wheat samples was proved.

[Does the Fragmented Images Test measure locally oriented visual processing in autism spectrum disorders?].

Science.gov (United States)

Scheurich, Armin; Fellgiebel, Andreas; Müller, Mattias J; Poustka, Fritz; Bölte, Sven

2010-03-01

The cognitive phenotype of autism spectrum disorders (ASD) is characterized among other things by local processing (weak central coherence). It was examined whether a test that measures identification of fragmented pictures (FBT) is able to seize this preference for local processing. The FBT performance of 15 patients with ASD, 16 with depression, 16 with schizophrenia and of 16 control subjects was compared. In addition, two tests well known to be sensitive to local processing were assessed, namely the Embedded Figures Test (EFT) and the Block Design Test (BDT). ASD patients demonstrated a preference for local processing. Difficulties in global processing, or more specifically in gestalt perception (FBT), were accompanied by good performance on the EFT and BDT as expected. Controlling for age and nonverbal intelligence (ANCOVA) reduced differences to trends. However, the calculation of difference scores (i.e., subtraction of FBT from EFT performance) resulted in significant differences between ASD and control groups even after controlling for of age and intelligence. The FBT is a suitable exploratory test of local visual processing in ASD. In particular, a difference criterion can be generated (FBT vs. EFT) that discriminates between ASD and clinical as well as healthy control groups.

Realism vs. Neoliberalism and Constructivism: Main Points of Debate

Directory of Open Access Journals (Sweden)

Yury V. Borovsky

2015-01-01

Full Text Available Abstract: Following the collapse of the bipolar world realist approaches were placed under close scrutiny by neoliberals and constructivists. The legacy of the realist school actually became an object of numerous attacks, which were undertaken to demonstrate its discrepancy with new international realities. In the course of sharp debates proponents of realism managed to show the weakness of neoliberal argumentation and, further, to testify that a number of high-sounding neoliberal theories are poorlygrounded. At the same time, realism’s supporters proved themselves to be incapable of defeating constructivists. The new opponents persuasively revealed the apparent though neglected earlier controversy between the basic materialist assumptions of the realist school and the not entirely materialist tool of their reflection in the international relations, i.e. the concept of power. Only after a time realists managed to find some credible theoretical ground and make first effective steps towards building a consistent system of counterarguments against constructivism. However, ‘the constructivist assault’ caused a profound review of the realist theoretical and practical apparatus. Among currently relevant applied propositions of the school we should name assumptions of statism, of anarchy, of the significance of the power factor (while recognising the dual nature of power in international relations as well as the ‘relative gains problem’.

Local and omnibus goodness-of-fit tests in classical measurement error models

KAUST Repository

Ma, Yanyuan

2010-09-14

We consider functional measurement error models, i.e. models where covariates are measured with error and yet no distributional assumptions are made about the mismeasured variable. We propose and study a score-type local test and an orthogonal series-based, omnibus goodness-of-fit test in this context, where no likelihood function is available or calculated-i.e. all the tests are proposed in the semiparametric model framework. We demonstrate that our tests have optimality properties and computational advantages that are similar to those of the classical score tests in the parametric model framework. The test procedures are applicable to several semiparametric extensions of measurement error models, including when the measurement error distribution is estimated non-parametrically as well as for generalized partially linear models. The performance of the local score-type and omnibus goodness-of-fit tests is demonstrated through simulation studies and analysis of a nutrition data set.

Testing for local adaptation in brown trout using reciprocal transplants

Directory of Open Access Journals (Sweden)

Stelkens Rike B

2012-12-01

Full Text Available Abstract Background Local adaptation can drive the divergence of populations but identification of the traits under selection remains a major challenge in evolutionary biology. Reciprocal transplant experiments are ideal tests of local adaptation, yet rarely used for higher vertebrates because of the mobility and potential invasiveness of non-native organisms. Here, we reciprocally transplanted 2500 brown trout (Salmo trutta embryos from five populations to investigate local adaptation in early life history traits. Embryos were bred in a full-factorial design and raised in natural riverbeds until emergence. Customized egg capsules were used to simulate the natural redd environment and allowed tracking the fate of every individual until retrieval. We predicted that 1 within sites, native populations would outperform non-natives, and 2 across sites, populations would show higher performance at ‘home’ compared to ‘away’ sites. Results There was no evidence for local adaptation but we found large differences in survival and hatching rates between sites, indicative of considerable variation in habitat quality. Survival was generally high across all populations (55% ± 3%, but ranged from 4% to 89% between sites. Average hatching rate was 25% ± 3% across populations ranging from 0% to 62% between sites. Conclusion This study provides rare empirical data on variation in early life history traits in a population network of a salmonid, and large-scale breeding and transplantation experiments like ours provide powerful tests for local adaptation. Despite the recently reported genetic and morphological differences between the populations in our study area, local adaptation at the embryo level is small, non-existent, or confined to ecological conditions that our experiment could not capture.

Estrogen receptor alpha localization in the testes of men with normal spermatogenesis Estrogen receptor alpha localization in the testes of men with normal spermatogenesis

OpenAIRE

Eliza Filipiak; Dagmara Suliborska; Maria Laszczynska; Renata Walczak-Jedrzejowska; Elzbieta Oszukowska; Katarzyna Marchlewska; Krzysztof Kula; Jolanta Slowikowska-Hilczer

2012-01-01

It is known that estrogens act on the male reproductive tract by binding to estrogen receptors (ER) a and
b. However, studies on ER localization in the human testis are discordant. The aim of this study was to investigate
the localization of ERa in the testes of adult men with normal spermatogenesis. Semen analysis of ten adult men
revealed azoospermia. FSH, LH and testosterone serum concentrations were within normal values, and the volume
of the te...

Loophole-free Bell inequality violation using electron spins separated by 1.3 kilometres

Science.gov (United States)

Hensen, B.; Bernien, H.; Dréau, A. E.; Reiserer, A.; Kalb, N.; Blok, M. S.; Ruitenberg, J.; Vermeulen, R. F. L.; Schouten, R. N.; Abellán, C.; Amaya, W.; Pruneri, V.; Mitchell, M. W.; Markham, M.; Twitchen, D. J.; Elkouss, D.; Wehner, S.; Taminiau, T. H.; Hanson, R.

2015-10-01

More than 50 years ago, John Bell proved that no theory of nature that obeys locality and realism can reproduce all the predictions of quantum theory: in any local-realist theory, the correlations between outcomes of measurements on distant particles satisfy an inequality that can be violated if the particles are entangled. Numerous Bell inequality tests have been reported; however, all experiments reported so far required additional assumptions to obtain a contradiction with local realism, resulting in `loopholes'. Here we report a Bell experiment that is free of any such additional assumption and thus directly tests the principles underlying Bell's inequality. We use an event-ready scheme that enables the generation of robust entanglement between distant electron spins (estimated state fidelity of 0.92 +/- 0.03). Efficient spin read-out avoids the fair-sampling assumption (detection loophole), while the use of fast random-basis selection and spin read-out combined with a spatial separation of 1.3 kilometres ensure the required locality conditions. We performed 245 trials that tested the CHSH-Bell inequality S memory in the devices. Our data hence imply statistically significant rejection of the local-realist null hypothesis. This conclusion may be further consolidated in future experiments; for instance, reaching a value of P = 0.001 would require approximately 700 trials for an observed S = 2.4. With improvements, our experiment could be used for testing less-conventional theories, and for implementing device-independent quantum-secure communication and randomness certification.

Tests to evaluate public health disease reporting systems in local public health agencies

National Research Council Canada - National Science Library

Dausey, David J

2005-01-01

... to evaluate the ability to receive and respond to case reports 24 hours a day, 7 days a week. We refined these tests by beta-testing them at 20 metropolitan area local public health agencies across the country over the course of 10 months. The contents of this manual will be of interest to public health professionals at the state and local l...

Clinical realism: a new literary genre and a potential tool for encouraging empathy in medical students.

Science.gov (United States)

McDonald, Paula; Ashton, Katy; Barratt, Rachel; Doyle, Simon; Imeson, Dorrie; Meir, Amos; Risser, Gregoire

2015-07-03

Empathy has been re-discovered as a desirable quality in doctors. A number of approaches using the medical humanities have been advocated to teach empathy to medical students. This paper describes a new approach using the medium of creative writing and a new narrative genre: clinical realism. Third year students were offered a four week long Student Selected Component (SSC) in Narrative Medicine and Creative Writing. The creative writing element included researching and creating a character with a life-changing physical disorder without making the disorder the focus of the writing. The age, gender, social circumstances and physical disorder of a character were randomly allocated to each student. The students wrote repeated assignments in the first person, writing as their character and including details of living with the disorder in all of their narratives. This article is based on the work produced by the 2013 cohort of students taking the course, and on their reflections on the process of creating their characters. Their output was analysed thematically using a constructivist approach to meaning making. This preliminary analysis suggests that the students created convincing and detailed narratives which included rich information about living with a chronic disorder. Although the writing assignments were generic, they introduced a number of themes relating to illness, including stigma, personal identity and narrative wreckage. Some students reported that they found it difficult to relate to "their" character initially, but their empathy for the character increased as the SSC progressed. Clinical realism combined with repeated writing exercises about the same character is a potential tool for helping to develop empathy in medical students and merits further investigation.

Rabies elimination research: juxtaposing optimism, pragmatism and realism.

Science.gov (United States)

Cleaveland, Sarah; Hampson, Katie

2017-12-20

More than 100 years of research has now been conducted into the prevention, control and elimination of rabies with safe and highly efficacious vaccines developed for use in human and animal populations. Domestic dogs are a major reservoir for rabies, and although considerable advances have been made towards the elimination and control of canine rabies in many parts of the world, the disease continues to kill tens of thousands of people every year in Africa and Asia. Policy efforts are now being directed towards a global target of zero human deaths from dog-mediated rabies by 2030 and the global elimination of canine rabies. Here we demonstrate how research provides a cause for optimism as to the feasibility of these goals through strategies based around mass dog vaccination. We summarize some of the pragmatic insights generated from rabies epidemiology and dog ecology research that can improve the design of dog vaccination strategies in low- and middle-income countries and which should encourage implementation without further delay. We also highlight the need for realism in reaching the feasible, although technically more difficult and longer-term goal of global elimination of canine rabies. Finally, we discuss how research on rabies has broader relevance to the control and elimination of a suite of diseases of current concern to human and animal health, providing an exemplar of the value of a 'One Health' approach. © 2017 The Authors.

Breakdown Localization Studies on the SwissFEL C-band Test Structures

CERN Document Server

Klavins, J; Le Pimpec, F; Locans, U; Shipman, N; Stingelin, L; Wohlmuther, M; Zennaro, R

2013-01-01

The SwissFEL main LINAC will consist of 104 Cband structures with a nominal accelerating gradient of 28MV/m. First power tests were performed on short constant impedance test-structures composed of eleven double-rounded cups. In order to localize breakdowns, two or three acoustic emission sensors were installed on the test-structures. In order to localize breakdowns we have analysed, in addition to acoustic measurements, the delay and phase of the RF power signals. Parasitic, acoustic noise emitted from the loads of the structure complicated the data interpretation and necessitated appropriate processing of the acoustic signals. The Goals of the experiments were to identify design and manufacturing errors of the structures. The results indicate that breakdowns occur mostly at the input power coupler, as also confirmed by vacuumevents at the same location. The experiments show that the LINAC test-structures fulfil the requirements in breakdown probability. Moreover developing a detection system based on acoust...

Testing isotropy in the local Universe

Energy Technology Data Exchange (ETDEWEB)

Appleby, Stephen; Shafieloo, Arman, E-mail: stephen.appleby@apctp.org, E-mail: arman@apctp.org [Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

2014-10-01

We test the isotropy of the local distribution of galaxies using the 2MASS extended source catalogue. By decomposing the full sky survey into distinct patches and using a combination of photometric and spectroscopic redshift data, we use both parametric and non-parametric methods to obtain the shape of the luminosity function in each patch. We use the shape of the luminosity function to test the statistical isotropy of the underlying galaxy distribution. The parametric estimator shows some evidence of a hemispherical asymmetry in the north/south Galactic plane. However the non-parametric estimator exhibits no significant anisotropy, with the galaxy distribution being consistent with the assumption of isotropy in all regions considered. The parametric asymmetry is attributed to the relatively poor fit of the functional form to the underlying data. When using the non-parametric estimator, we do find a dipole in the shape of the luminosity function, with maximal deviation from isotropy at galactic coordinate (b,l)=(30{sup o},315{sup o}). However we can ascribe no strong statistical significance to this observation.

Jesús Benito, Ana Ma Manzanas, and Begoña Simal: Uncertain Mirrors: Magical Realisms in US Ethnic Literatures.

Directory of Open Access Journals (Sweden)

Heinz Ickstadt

2011-01-01

Full Text Available In their united assault on the concept and practice of realism in the 1970s and after, postmodern writers and poststructuralist critics made fabulation and/or metafiction the narrative tools which, via the deconstruction of their own narrative order, might subvert the institutional order of literature as well as of society since both could be metaphorically collapsed into a single system of repression: the order of mimesis. To that attack we owe a number of great postmodern novels (like Thoma...

Quantum theory and the flight from realism philosophical responses to quantum mechanics

CERN Document Server

Norris, Christopher

2002-01-01

This book is a critical introduction to the long-standing debate concerning the conceptual foundations of quantum mechanics and the problems it has posed for physicists and philosophers from Einstein to the present. Quantum theory has been a major infulence on postmodernism, and presents significant problems for realists. Keeping his own realist position in check, Christopher Norris subjects a wide range of key opponents and supporters of realism to a high and equal level of scrutiny. With a characteristic combination of rigour and intellectual generosity, he draws out the merits and weaknesses from opposing arguments. In a sequence of closely argued chapters, Norris examines the premises of orthodox quantum theory, as developed most influentially by Bohr and Heisenberg, and its impact on varous philosophical developments. These include the ideas developed by W.V Quine, Thomas Kuhn, Michael Dummett, Bas van Fraassen, and Hilary Puttnam. In each case, Norris argues, these thinkers have been influenced by the...

Local and Global Illumination in the Volume Rendering Integral

Energy Technology Data Exchange (ETDEWEB)

Max, N; Chen, M

2005-10-21

This article is intended as an update of the major survey by Max [1] on optical models for direct volume rendering. It provides a brief overview of the subject scope covered by [1], and brings recent developments, such as new shadow algorithms and refraction rendering, into the perspective. In particular, we examine three fundamentals aspects of direct volume rendering, namely the volume rendering integral, local illumination models and global illumination models, in a wavelength-independent manner. We review the developments on spectral volume rendering, in which visible light are considered as a form of electromagnetic radiation, optical models are implemented in conjunction with representations of spectral power distribution. This survey can provide a basis for, and encourage, new efforts for developing and using complex illumination models to achieve better realism and perception through optical correctness.

After Bell

Energy Technology Data Exchange (ETDEWEB)

Khrennikov, Andrei [International Center for Mathematical Modeling in Physics, Engineering, Economics, and Cognitive Science Linnaeus University, Vaexjoe (Sweden)

2017-06-15

We analyze foundational consequences of recently reported loophole free tests of violation of Bell's inequality. We consider two interpretations of these remarkable experiments. The conventional one is ''Einstein was wrong and Bohr was right, there is spooky action at a distance, quantum realism is incompatible with locality.'' However, in line with discussions in literature during last decade, we show that it is still possible to treat quantum mechanics without appealing to nonlocality or denying realism. We hope that this note will call the attention of experts in quantum foundations and convince them that the case is not closed, so that they should come with their own comments on the status of the final Bell test. (copyright 2016 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

After Bell

International Nuclear Information System (INIS)

Khrennikov, Andrei

2017-01-01

We analyze foundational consequences of recently reported loophole free tests of violation of Bell's inequality. We consider two interpretations of these remarkable experiments. The conventional one is ''Einstein was wrong and Bohr was right, there is spooky action at a distance, quantum realism is incompatible with locality.'' However, in line with discussions in literature during last decade, we show that it is still possible to treat quantum mechanics without appealing to nonlocality or denying realism. We hope that this note will call the attention of experts in quantum foundations and convince them that the case is not closed, so that they should come with their own comments on the status of the final Bell test. (copyright 2016 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

High-visibility time-bin entanglement for testing chained Bell inequalities

Science.gov (United States)

Tomasin, Marco; Mantoan, Elia; Jogenfors, Jonathan; Vallone, Giuseppe; Larsson, Jan-Åke; Villoresi, Paolo

2017-03-01

The violation of Bell's inequality requires a well-designed experiment to validate the result. In experiments using energy-time and time-bin entanglement, initially proposed by Franson in 1989, there is an intrinsic loophole due to the high postselection. To obtain a violation in this type of experiment, a chained Bell inequality must be used. However, the local realism bound requires a high visibility in excess of 94.63% in the time-bin entangled state. In this work, we show how such a high visibility can be reached in order to violate a chained Bell inequality with six, eight, and ten terms.

Testing the Relation between the Local and Cosmic Star Formation Histories

International Nuclear Information System (INIS)

Fields, B.D.

1999-01-01

Recently, there has been great progress toward observationally determining the mean star formation history of the universe. When accurately known, the cosmic star formation rate could provide much information about Galactic evolution, if the Milky Way close-quote s star formation rate is representative of the average cosmic star formation history. A simple hypothesis is that our local star formation rate is proportional to the cosmic mean. In addition, to specify a star formation history, one must also adopt an initial mass function (IMF); typically it is assumed that the IMF is a smooth function, which is constant in time. We show how to test directly the compatibility of all these assumptions by making use of the local (solar neighborhood) star formation record encoded in the present-day stellar mass function. Present data suggest that at least one of the following is false: (1) the local IMF is constant in time; (2) the local IMF is a smooth (unimodal) function; and/or (3) star formation in the Galactic disk was representative of the cosmic mean. We briefly discuss how to determine which of these assumptions fail and also improvements in observations, which will sharpen this test. copyright copyright 1999. The American Astronomical Society

Interpretation of the quantum formalism and Bell's theorem

International Nuclear Information System (INIS)

Santos, E.

1991-01-01

It is argued that quantum mechanics must be interpreted according to the Copenhagen interpretation. Consequently the formalism must be used in a purely operational way. The relation between realism, hidden variables, and the Bell inequalities is discussed. The proof of impossibility of local hidden-variables theories (Bell theorem) is criticized on the basis that the quantum mechanical states violating local realism are not physically realizable states

Mediating role of activity level in the depressive realism effect.

Science.gov (United States)

Blanco, Fernando; Matute, Helena; A Vadillo, Miguel

2012-01-01

Several classic studies have concluded that the accuracy of identifying uncontrollable situations depends heavily on depressive mood. Nondepressed participants tend to exhibit an optimistic illusion of control, whereas depressed participants tend to better detect a lack of control. Recently, we suggested that the different activity levels (measured as the probability of responding during a contingency learning task) exhibited by depressed and nondepressed individuals is partly responsible for this effect. The two studies presented in this paper provide further support for this mediational hypothesis, in which mood is the distal cause of the illusion of control operating through activity level, the proximal cause. In Study 1, the probability of responding, P(R), was found to be a mediator variable between the depressive symptoms and the judgments of control. In Study 2, we intervened directly on the mediator variable: The P(R) for both depressed and nondepressed participants was manipulated through instructions. Our results confirm that P(R) manipulation produced differences in the participants' perceptions of uncontrollability. Importantly, the intervention on the mediator variable cancelled the effect of the distal cause; the participants' judgments of control were no longer mood dependent when the P(R) was manipulated. This result supports the hypothesis that the so-called depressive realism effect is actually mediated by the probability of responding.

Sobre el realisme històric i el teatre-document (o de quan els autors estudiaven Història

Directory of Open Access Journals (Sweden)

Ramon X. Rosselló

2000-03-01

Full Text Available Resum: This essay attempts to approach the Catalan theatrical production of the 1960s and 70s related to the theatredocument, with special emphasis on M. Aurèlia Capmany and X. Romeu’s «Qüestions and answers about the Ufe and death of Francesc Layreu lawyerfor the workers of Catalonia» (1970, one of the most outstanding examples of this theatrical formula.Paraules clau: realisme històric; teatre-document; teatre català; anys seixanta i setanta; M. Aurèlia Campmany; Xavier Romeu

From the atomic nucleus to the cosmos. How the strange laws of the quantum world form our reality

International Nuclear Information System (INIS)

Beckers, Mike

2016-01-01

The following topics are dealt with: The reality of nature, Hamlet in quantum world, the ene of the local realism, quantum jumps, a new quantum theory, string theory for solids, atomic nuclei between liquid and crystal, simulated quantum worlds, space-time entanglement, Einstein in the quantum test, quantum cryptography, quantum computers as code breaker. (HSI)

Implementation of Computer Assisted Test Selection System in Local Governments

Directory of Open Access Journals (Sweden)

Abdul Azis Basri

2016-05-01

Full Text Available As an evaluative way of selection of civil servant system in all government areas, Computer Assisted Test selection system was started to apply in 2013. In phase of implementation for first time in all areas in 2014, this system selection had trouble in several areas, such as registration procedure and passing grade. The main objective of this essay was to describe implementation of new selection system for civil servants in the local governments and to seek level of effectiveness of this selection system. This essay used combination of study literature and field survey which data collection was made by interviews, observations, and documentations from various sources, and to analyze the collected data, this essay used reduction, display data and verification for made the conclusion. The result of this essay showed, despite there a few parts that be problem of this system such as in the registration phase but almost all phases of implementation of CAT selection system in local government areas can be said was working clearly likes in preparation, implementation and result processing phase. And also this system was fulfilled two of three criterias of effectiveness for selection system, they were accuracy and trusty. Therefore, this selection system can be said as an effective way to select new civil servant. As suggestion, local governments have to make prime preparation in all phases of test and make a good feedback as evaluation mechanism and together with central government to seek, fix and improve infrastructures as supporting tool and competency of local residents.

Revealing Bell's nonlocality for unstable systems in high energy physics

Energy Technology Data Exchange (ETDEWEB)

Hiesmayr, Beatrix C.; Gabriel, Andreas; Huber, Marcus [University of Vienna, Faculty of Physics, Vienna (Austria); Di Domenico, Antonio [Sapienza Universita di Roma (Italy); INFN Sezione di Roma, Rome (Italy); Curceanu, Catalina [Laboratori Nazionali di Frascati dell' INFN, Frascati (Italy); Larsson, Jan-Aake [Linkoepings Universitet, Institionen foer Systemteknik, Linkoeping (Sweden); Moskal, Pawel [Jagiellonian University, Institute of Physics, Cracow (Poland)

2012-01-15

Entanglement and its consequences - in particular the violation of Bell inequalities, which defies our concepts of realism and locality - have been proven to play key roles in Nature by many experiments for various quantum systems. Entanglement can also be found in systems not consisting of ordinary matter and light, i.e. in massive meson-antimeson systems. Bell inequalities have been discussed for these systems, but up to date no direct experimental test to conclusively exclude local realism was found. This mainly stems from the fact that one only has access to a restricted class of observables and that these systems are also decaying. In this Letter we put forward a Bell inequality for unstable systems which can be tested at accelerator facilities with current technology. Herewith, the long awaited proof that such systems at different energy scales can reveal the sophisticated ''dynamical'' nonlocal feature of Nature in a direct experiment gets feasible. Moreover, the role of entanglement and CP violation, an asymmetry between matter and antimatter, is explored, a special feature offered only by these meson-antimeson systems. (orig.)

Revealing Bell's nonlocality for unstable systems in high energy physics

International Nuclear Information System (INIS)

Hiesmayr, Beatrix C.; Gabriel, Andreas; Huber, Marcus; Di Domenico, Antonio; Curceanu, Catalina; Larsson, Jan-Aake; Moskal, Pawel

2012-01-01

Entanglement and its consequences - in particular the violation of Bell inequalities, which defies our concepts of realism and locality - have been proven to play key roles in Nature by many experiments for various quantum systems. Entanglement can also be found in systems not consisting of ordinary matter and light, i.e. in massive meson-antimeson systems. Bell inequalities have been discussed for these systems, but up to date no direct experimental test to conclusively exclude local realism was found. This mainly stems from the fact that one only has access to a restricted class of observables and that these systems are also decaying. In this Letter we put forward a Bell inequality for unstable systems which can be tested at accelerator facilities with current technology. Herewith, the long awaited proof that such systems at different energy scales can reveal the sophisticated ''dynamical'' nonlocal feature of Nature in a direct experiment gets feasible. Moreover, the role of entanglement and CP violation, an asymmetry between matter and antimatter, is explored, a special feature offered only by these meson-antimeson systems. (orig.)

Strong influence of regional species pools on continent-wide structuring of local communities

DEFF Research Database (Denmark)

Lessard, Jean-Philippe; Borregaard, Michael Krabbe; Fordyce, James A.

2012-01-01

pool, to examine the interplay between broad-scale evolutionary and fine-scale ecological processes. Finally, a renewed interest in the influence of species source pools on communities has shown that the definition of the source pool influences interpretations of patterns of community structure. We use...... of communities along climatic gradients. We find that the average phylogenetic relatedness of species in ant communities decreases from tropical to temperate regions, but the strength of this relationship depends on the level of ecological realism in the definition of source pools. We conclude that the evolution...... of climatic niches influences the phylogenetic structure of regional source pools and that the influence of regional source pools on local community structure is strong....

Properties of global- and local-ancestry adjustments in genetic association tests in admixed populations.

Science.gov (United States)

Martin, Eden R; Tunc, Ilker; Liu, Zhi; Slifer, Susan H; Beecham, Ashley H; Beecham, Gary W

2018-03-01

Population substructure can lead to confounding in tests for genetic association, and failure to adjust properly can result in spurious findings. Here we address this issue of confounding by considering the impact of global ancestry (average ancestry across the genome) and local ancestry (ancestry at a specific chromosomal location) on regression parameters and relative power in ancestry-adjusted and -unadjusted models. We examine theoretical expectations under different scenarios for population substructure; applying different regression models, verifying and generalizing using simulations, and exploring the findings in real-world admixed populations. We show that admixture does not lead to confounding when the trait locus is tested directly in a single admixed population. However, if there is more complex population structure or a marker locus in linkage disequilibrium (LD) with the trait locus is tested, both global and local ancestry can be confounders. Additionally, we show the genotype parameters of adjusted and unadjusted models all provide tests for LD between the marker and trait locus, but in different contexts. The local ancestry adjusted model tests for LD in the ancestral populations, while tests using the unadjusted and the global ancestry adjusted models depend on LD in the admixed population(s), which may be enriched due to different ancestral allele frequencies. Practically, this implies that global-ancestry adjustment should be used for screening, but local-ancestry adjustment may better inform fine mapping and provide better effect estimates at trait loci. © 2017 WILEY PERIODICALS, INC.

Mapping language to visual referents: Does the degree of image realism matter?

Science.gov (United States)

Saryazdi, Raheleh; Chambers, Craig G

2018-01-01

Studies of real-time spoken language comprehension have shown that listeners rapidly map unfolding speech to available referents in the immediate visual environment. This has been explored using various kinds of 2-dimensional (2D) stimuli, with convenience or availability typically motivating the choice of a particular image type. However, work in other areas has suggested that certain cognitive processes are sensitive to the level of realism in 2D representations. The present study examined the process of mapping language to depictions of objects that are more or less realistic, namely photographs versus clipart images. A custom stimulus set was first created by generating clipart images directly from photographs of real objects. Two visual world experiments were then conducted, varying whether referent identification was driven by noun or verb information. A modest benefit for clipart stimuli was observed during real-time processing, but only for noun-driving mappings. The results are discussed in terms of their implications for studies of visually situated language processing. Crown Copyright © 2017. Published by Elsevier B.V. All rights reserved.

Strong influence of regional species pools on continent-wide structuring of local communities.

Science.gov (United States)

Lessard, Jean-Philippe; Borregaard, Michael K; Fordyce, James A; Rahbek, Carsten; Weiser, Michael D; Dunn, Robert R; Sanders, Nathan J

2012-01-22

There is a long tradition in ecology of evaluating the relative contribution of the regional species pool and local interactions on the structure of local communities. Similarly, a growing number of studies assess the phylogenetic structure of communities, relative to that in the regional species pool, to examine the interplay between broad-scale evolutionary and fine-scale ecological processes. Finally, a renewed interest in the influence of species source pools on communities has shown that the definition of the source pool influences interpretations of patterns of community structure. We use a continent-wide dataset of local ant communities and implement ecologically explicit source pool definitions to examine the relative importance of regional species pools and local interactions for shaping community structure. Then we assess which factors underlie systematic variation in the structure of communities along climatic gradients. We find that the average phylogenetic relatedness of species in ant communities decreases from tropical to temperate regions, but the strength of this relationship depends on the level of ecological realism in the definition of source pools. We conclude that the evolution of climatic niches influences the phylogenetic structure of regional source pools and that the influence of regional source pools on local community structure is strong.

Local control unit for ITER-India gyrotron test facility (IIGTF)

Energy Technology Data Exchange (ETDEWEB)

Rathod, Vipal, E-mail: vipal.rathod@iter-india.org; Shah, Ronak; Mandge, Deepak; Parmar, Rajvi; Rao, S.L.

2016-11-15

Highlights: • A dedicated full scale ITER prototype Local Control Unit for ITER-India Gyrotron test facility. • National Instruments® make PXIe system for real time control & data acquisition and Siemens® PLC for sequence control function. • Hardwired FPGA based fast protection interlock system. • High speed analog fiber optical transmission link using V/F and F/V technique. • Software framework based on LabVIEW™ platform and ITER CODAC Core System. - Abstract: Electron Cyclotron system on ITER, is one of the important RF ancillary systems based on high power Gyrotron RF sources, that is used for plasma heating and current drive applications. To operate a Gyrotron source, various auxiliary systems and services such as Super Conducting Magnet set, High Voltage Power Supplies, Auxiliary Power Supplies, Waveguide components, Cooling water system and a Local Control Unit (LCU) are required. The LCU plays a very crucial role for the safe and reliable operation of Gyrotron system. A dedicated full scale ITER prototype LCU is being developed for testing and commissioning of an ITER like Test Gyrotron at ITER-India Gyrotron Test facility (IIGTF). The main functions of LCU include Sequence Control, Local Interlock Protection and Real Time Data Acquisition. PLC based slow controller is used for implementing the Sequence Control & Slow Interlock functions. Critical Protection Interlocks are required to have a response time of <10 μs and are implemented using custom built hardware and PXIe based fast controller. Also PXIe system is used for implementing Real Time Data Acquisition function that is required to have slow and fast acquisition with online visualization and off line analysis facility. A Signal Conditioning Unit (SCU) is used to interface and faithfully transmit the field signals to the remote control systems. Necessary controller hardware is procured and several pre-prototype developments have been taken up to establish the critical subsystems such as

Local control unit for ITER-India gyrotron test facility (IIGTF)

International Nuclear Information System (INIS)

Rathod, Vipal; Shah, Ronak; Mandge, Deepak; Parmar, Rajvi; Rao, S.L.

2016-01-01

Highlights: • A dedicated full scale ITER prototype Local Control Unit for ITER-India Gyrotron test facility. • National Instruments® make PXIe system for real time control & data acquisition and Siemens® PLC for sequence control function. • Hardwired FPGA based fast protection interlock system. • High speed analog fiber optical transmission link using V/F and F/V technique. • Software framework based on LabVIEW™ platform and ITER CODAC Core System. - Abstract: Electron Cyclotron system on ITER, is one of the important RF ancillary systems based on high power Gyrotron RF sources, that is used for plasma heating and current drive applications. To operate a Gyrotron source, various auxiliary systems and services such as Super Conducting Magnet set, High Voltage Power Supplies, Auxiliary Power Supplies, Waveguide components, Cooling water system and a Local Control Unit (LCU) are required. The LCU plays a very crucial role for the safe and reliable operation of Gyrotron system. A dedicated full scale ITER prototype LCU is being developed for testing and commissioning of an ITER like Test Gyrotron at ITER-India Gyrotron Test facility (IIGTF). The main functions of LCU include Sequence Control, Local Interlock Protection and Real Time Data Acquisition. PLC based slow controller is used for implementing the Sequence Control & Slow Interlock functions. Critical Protection Interlocks are required to have a response time of <10 μs and are implemented using custom built hardware and PXIe based fast controller. Also PXIe system is used for implementing Real Time Data Acquisition function that is required to have slow and fast acquisition with online visualization and off line analysis facility. A Signal Conditioning Unit (SCU) is used to interface and faithfully transmit the field signals to the remote control systems. Necessary controller hardware is procured and several pre-prototype developments have been taken up to establish the critical subsystems such as

Local control station for development, testing and maintenance of mirror fusion facility subsystem controls

International Nuclear Information System (INIS)

Ables, E.; Kelly, M.F.

1985-01-01

A Local Control Station (LCS) was designed and built to provide a simplified ad easily configurable means of controlling any Mirror Fusion Test Facility (MFTF-B) subsystem for the purpose of development, testing and maintenance of the subsystem. All MFTF-B Subsystems incorporate at least one Local Control Computer (LCC) that is connected to and accepts high level commands from one of the Supervisory Control and Diagnostic System (SCDS) computers. The LCS connects directly to the LCC in place of SCDS. The LCS communicates with the subsystem hardware using the same SCDS commands that the local control computer recognizes and as such requires no special configuration of the LCC

Testing the Validity of Local Flux Laws in an Experimental Eroding Landscape

Science.gov (United States)

Sweeney, K. E.; Roering, J. J.; Ellis, C.

2015-12-01

Linking sediment transport to landscape evolution is fundamental to interpreting climate and tectonic signals from topography and sedimentary deposits. Most geomorphic process laws consist of simple continuum relationships between sediment flux and local topography. However, recent work has shown that nonlocal formulations, whereby sediment flux depends on upslope conditions, are more accurate descriptions of sediment motion, particularly in steep topography. Discriminating between local and nonlocal processes in natural landscapes is complicated by the scarcity of high-resolution topographic data and by the difficulty of measuring sediment flux. To test the validity of local formulations of sediment transport, we use an experimental erosive landscape that combines disturbance-driven, diffusive sediment transport and surface runoff. We conducted our experiments in the eXperimental Landscape Model at St. Anthony Falls Laboratory a 0.5 x 0.5 m test flume filled with crystalline silica (D50 = 30μ) mixed with water to increase cohesion and preclude surface infiltration. Topography is measured with a sheet laser scanner; total sediment flux is tracked with a series of load cells. We simulate uplift (relative baselevel fall) by dropping two parallel weirs at the edges of the experiment. Diffusive sediment transport in our experiments is driven by rainsplash from a constant head drip tank fitted with 625 blunt needles of fixed diameter; sediment is mobilized both through drop impact and the subsequent runoff of the drops. To drive advective transport, we produce surface runoff via a ring of misters that produce droplets that are too small to disturb the sediment surface on impact. Using the results from five experiments that systematically vary the time of drip box rainfall relative to misting rainfall, we calculate local erosion in our experiments by differencing successive time-slices of topography and test whether these patterns are related to local topographic

Testing the non-locality of quantum theory in two-kaon systems

Energy Technology Data Exchange (ETDEWEB)

Eberhard, P.H. (California Univ., Berkeley (United States). Lawrence Berkeley Lab.)

1993-06-07

An idea for testing the non-local character of quantum theory in systems made of two neutral kaons is suggested. Such tests require detecting two long-lived or two short-lived neutral kaons in coincidence, when copper slabs are either interposed on or removed from their paths. They may be performed at an asymmetric [Phi][sup 0]-factory. They could answer some questions raised by the EPR paradox and Bell's inequalities. If such tests are performed and if predictions of quantum mechanics and standard theory of kaon regeneration are verified experimentally, all descriptions of the relevant phenomena in terms of local interactions will be ruled out in principle with the exception of very peculiar ones, which imply the existence of hidden variables, of different kinds of kaons corresponding to different values of the hidden variables, and, for some of these kaons, of regeneration probabilities enhanced by a factor of the order of 400 or more over the average. Of course, the experiment may also reveal a break down of quantum theory. (orig.)

A modified Wright-Fisher model that incorporates Ne: A variant of the standard model with increased biological realism and reduced computational complexity.

Science.gov (United States)

Zhao, Lei; Gossmann, Toni I; Waxman, David

2016-03-21

The Wright-Fisher model is an important model in evolutionary biology and population genetics. It has been applied in numerous analyses of finite populations with discrete generations. It is recognised that real populations can behave, in some key aspects, as though their size that is not the census size, N, but rather a smaller size, namely the effective population size, Ne. However, in the Wright-Fisher model, there is no distinction between the effective and census population sizes. Equivalently, we can say that in this model, Ne coincides with N. The Wright-Fisher model therefore lacks an important aspect of biological realism. Here, we present a method that allows Ne to be directly incorporated into the Wright-Fisher model. The modified model involves matrices whose size is determined by Ne. Thus apart from increased biological realism, the modified model also has reduced computational complexity, particularly so when Ne⪡N. For complex problems, it may be hard or impossible to numerically analyse the most commonly-used approximation of the Wright-Fisher model that incorporates Ne, namely the diffusion approximation. An alternative approach is simulation. However, the simulations need to be sufficiently detailed that they yield an effective size that is different to the census size. Simulations may also be time consuming and have attendant statistical errors. The method presented in this work may then be the only alternative to simulations, when Ne differs from N. We illustrate the straightforward application of the method to some problems involving allele fixation and the determination of the equilibrium site frequency spectrum. We then apply the method to the problem of fixation when three alleles are segregating in a population. This latter problem is significantly more complex than a two allele problem and since the diffusion equation cannot be numerically solved, the only other way Ne can be incorporated into the analysis is by simulation. We have

Bell's theorem with and without inequalities for the three-qubit Greenberger-Horne-Zeilinger and W states

International Nuclear Information System (INIS)

Cabello, Adan

2002-01-01

A proof of Bell's theorem without inequalities valid for both inequivalent classes of three-qubit entangled states under local operations assisted by classical communication, namely Greenberger-Horne-Zeilinger (GHZ) and W, is described. This proof leads to a Bell inequality that allows more conclusive tests of Bell's theorem for three-qubit systems. Another Bell inequality involving both tri- and bipartite correlations is introduced which illustrates the different violations of local realism exhibited by the GHZ and W states

Estrogen receptor alpha localization in the testes of men with normal spermatogenesis Estrogen receptor alpha localization in the testes of men with normal spermatogenesis

Directory of Open Access Journals (Sweden)

Eliza Filipiak

2012-10-01

Full Text Available It is known that estrogens act on the male reproductive tract by binding to estrogen receptors (ER a and
b. However, studies on ER localization in the human testis are discordant. The aim of this study was to investigate
the localization of ERa in the testes of adult men with normal spermatogenesis. Semen analysis of ten adult men
revealed azoospermia. FSH, LH and testosterone serum concentrations were within normal values, and the volume
of the testes was normal, hence obstructive azoospermia was suspected. The tissues from testicular surgical
biopsies were fixed in Bouin’s fluid and embedded in paraffin. Assessments of the seminiferous epithelium (scoring
10 to –1, the number of Leydig cells (scoring 1 to 5, the areal fraction of intertubular space (IS, measurements
of seminiferous tubule diameter, and the thickness of the tubular wall, were performed on microscopic
sections. Immunohistochemical staining was applied with monoclonal antibodies against ERa. The mean spermatogenesis
score was 10 points; IS — 30.6 ± 8.1%; seminiferous tubule diameter — 193.9 ± 19.4 μm; thickness of
tubular wall — 7.44 ± 1.1 μm; number of Leydig cells — 1.6 ± 1.1 points. Immunohistochemical staining showed
the localization of ERa to be in the Sertoli and Leydig cell cytoplasm, while ERa was absent in germ cells. The
results of testicular tissue analysis confirmed its normal structure and normal, full spermatogenesis. The presence
of ERa in Sertoli and Leydig cells in normal human testis demonstrated in this study suggests that estrogens may
affect testicular function.It is known that estrogens act on the male reproductive tract by binding to estrogen receptors (ER a and
b. However, studies on ER localization in the human testis are discordant. The aim of this study was to investigate
the localization of ERa in the testes of adult men with normal spermatogenesis. Semen

The ‘soccer war’ and the ‘city that sailed Away’: magical realism and New Journalism in the work of Ryszard Kapuscinski

Directory of Open Access Journals (Sweden)

F. Wood

1998-04-01

The significance of Kapuscinski's work lies partly in the way in which it juxtaposes and interrelates various modes, thereby challenging fixed, monologic ways of viewing events. As a result of this, his writing evades easy definitions and conclusive categorisation. Finally, one of the most striking aspects of Kapuscinki's work lies in the way in which it provides a dramatic reflection of the interface between the fantastic and reality and between the surreal, the postmodern and journalistic realism.

Mediating role of activity level in the depressive realism effect.

Directory of Open Access Journals (Sweden)

Fernando Blanco

Full Text Available Several classic studies have concluded that the accuracy of identifying uncontrollable situations depends heavily on depressive mood. Nondepressed participants tend to exhibit an optimistic illusion of control, whereas depressed participants tend to better detect a lack of control. Recently, we suggested that the different activity levels (measured as the probability of responding during a contingency learning task exhibited by depressed and nondepressed individuals is partly responsible for this effect. The two studies presented in this paper provide further support for this mediational hypothesis, in which mood is the distal cause of the illusion of control operating through activity level, the proximal cause. In Study 1, the probability of responding, P(R, was found to be a mediator variable between the depressive symptoms and the judgments of control. In Study 2, we intervened directly on the mediator variable: The P(R for both depressed and nondepressed participants was manipulated through instructions. Our results confirm that P(R manipulation produced differences in the participants' perceptions of uncontrollability. Importantly, the intervention on the mediator variable cancelled the effect of the distal cause; the participants' judgments of control were no longer mood dependent when the P(R was manipulated. This result supports the hypothesis that the so-called depressive realism effect is actually mediated by the probability of responding.

Mediating Role of Activity Level in the Depressive Realism Effect

Science.gov (United States)

Blanco, Fernando; Matute, Helena; A. Vadillo, Miguel

2012-01-01

Several classic studies have concluded that the accuracy of identifying uncontrollable situations depends heavily on depressive mood. Nondepressed participants tend to exhibit an optimistic illusion of control, whereas depressed participants tend to better detect a lack of control. Recently, we suggested that the different activity levels (measured as the probability of responding during a contingency learning task) exhibited by depressed and nondepressed individuals is partly responsible for this effect. The two studies presented in this paper provide further support for this mediational hypothesis, in which mood is the distal cause of the illusion of control operating through activity level, the proximal cause. In Study 1, the probability of responding, P(R), was found to be a mediator variable between the depressive symptoms and the judgments of control. In Study 2, we intervened directly on the mediator variable: The P(R) for both depressed and nondepressed participants was manipulated through instructions. Our results confirm that P(R) manipulation produced differences in the participants’ perceptions of uncontrollability. Importantly, the intervention on the mediator variable cancelled the effect of the distal cause; the participants’ judgments of control were no longer mood dependent when the P(R) was manipulated. This result supports the hypothesis that the so-called depressive realism effect is actually mediated by the probability of responding. PMID:23029435

Profile of Students' Creative Thinking Skills on Quantitative Project-Based Protein Testing using Local Materials

Directory of Open Access Journals (Sweden)

D. K. Sari

2017-04-01

Full Text Available The purpose of this study is to obtain a profile of students’ creative thinking skills on quantitative project-based protein testing using local materials. Implementation of the research is using quasi-experimental method pre-test post-test control group design with 40 students involved in Biochemistry lab. The research instrument is pre-test and post-test using creative thinking skills in the form of description and students’ questionnaire. The analysis was performed with SPSS 22.0 program to see the significance normality, U Mann-Whitney test for nonparametric statistics, N-Gain score, and the percentage of student responses to the practicum performed. The research result shows that the pretest rate in the experimental group is 8.25 while in the control group is 6.90. After attending a project-based practicum with local materials, the experimental group obtained the mean of posttest is 37.55 while in control class is 11.18. The students’ improvement on creative thinking skills can be seen from the average of N-Gain in the experimental class with 0.32 (medium category and in the control category with 0.05 (low category. The experimental and control class have different creative thinking skills significantly different fluency, flexibility, novelty, and detail. It can be concluded that quantitative project-based protein testing using local materials can improve students’ creative thinking skills. 71% of total students feel that quantitative project-based protein testing using local materials make them more creative in doing a practicum in the laboratory.

Tests to evaluate public health disease reporting systems in local public health agencies (electronic resource)

National Research Council Canada - National Science Library

Ricci, Karen; Lurie, Nicole; Stoto, Michael A; Wasserman, Jeffrey; Dausey, David J; Meade, Barbara; Diamond, Alexis; Molander, Roger C

2005-01-01

... to evaluate the ability to receive and respond to case reports 24 hours a day, 7 days a week. We refined these tests by beta-testing them at 20 metropolitan area local public health agencies across the country over the course of 10 months. The contents of this manual will be of interest to public health professionals at the state and local l...

Eddy current testing device for metallic tubes at least locally curved

International Nuclear Information System (INIS)

Pigeon, Marcel; Vienot, Claude.

1975-01-01

Steam generators, condensers and heat exchangers generally consist of metallic tube bundles, the tubes having a complex geometry. The invention concerns an Eddy current testing device for metallic tubes at least locally curved, operating by translation of a probe inside the tubes [fr

Estrogen and progesterone receptor testing in breast carcinoma: concordance of results between local and reference laboratories in Brazil

Directory of Open Access Journals (Sweden)

Sheila Cristina Lordelo Wludarski

Full Text Available CONTEXT AND OBJECTIVE: Breast cancer accounts for approximately one quarter of all cancers in females. Estrogen and progesterone receptor testing has become an essential part of the clinical evaluation of breast carcinoma patients, and accurate results are critical in identifying patients who may benefit from hormone therapy. The present study had the aim of investigating the concordance of the results from hormone receptor tests between a reference laboratory and local (or community laboratories in Brazil. DESIGN AND SETTING: Retrospective study at a reference pathology laboratory. METHODS: The concordance in the results from hormone receptor tests between a reference laboratory and 146 local laboratories in Brazil was compared in relation to 500 invasive breast carcinoma cases, using immunohistochemistry. RESULTS: There was concordance in 89.4% (447/500 cases and 85.0% (425/500 cases of the results from estrogen (κ = 0.744, P < 0.001 and progesterone (κ = 0.688, P < 0.001 receptor tests, respectively, between local and reference laboratories. This was similar to findings in other countries. The false negative rates from estrogen and progesterone receptor tests in local laboratories were 8.7% and 14.4%, respectively. The false positive rates from estrogen and progesterone receptor tests in local laboratories were 15.5% and 16.0%, respectively. CONCLUSION: Technical and result interpretation issues may explain most of the discordances in hormone receptor testing in local laboratories. Validation of estrogen and progesterone receptor tests at local laboratories, with rigorous quality control measures, is strongly recommended in order to avoid erroneous treatment of breast cancer patients.

Suffering Daughters and Wives. Sentimental Themes in Finnish and Nordic Realism

Directory of Open Access Journals (Sweden)

Saija Isomaa

2010-10-01

Full Text Available This article examines sentimental themes and scenarios in Nordic nineteenthcentury literature, focusing on Finnish realism. The main claim of the article is that the treatment of the Woman Question in Nordic literature is thematically connected to French sentimentalism that depicted upper-class women caught in the conflict between personal freedom and familial duties. Typical scenarios were family barrier to marriage and love triangle, in which an unhappily married woman fell in love with another man. French sentimental social novels took a stance on the position of women. Similar themes and scenarios can be found in Nordic nineteenth-century novels and plays. The ‘daughter novel’ tradition from Fredrika Bremer’s The President’s Daughters (1834 to Minna Canth’s Hanna (1886 depict the sufferings of upper-class girls in patriarchal family and society. A Doll’s House (1879 by Henrik Ibsen centers on the theme of conflicting duties, depicting the moral awakening of a doll-like wife, and Papin rouva (1893, ‘The Wife of a Clergyman’ by Juhani Aho concentrates on the sufferings and moral considerations of the unhappily married Elli. The article suggests that the sentimentalist legacy informs the Nordic nineteenth-century literature and should be taken into account in the scholarship.

[Critical Review of Gender Ideology in the Light of Metaphysical Realism].

Science.gov (United States)

Burguete Miguel, Enrique Eduardo

2018-01-01

The implementing of gender ideology in the imaginary of current welfare-state societies owes much to a long process in the history of thought, which has culminated in an accommodation of post-feminist discourse. This paper sets out the epistemological principles that are present in gender ideology, as a response to both its recent and more-remote antecedents. It is furthermore framed by an urge for emancipation that began with medieval scholasticism, the latest manifestation of which lies in the post-structuralist deconstructionism that outlines the concept of queer. This concept has dissociated the categories of sex and gender to the point of making them irrelevant for the determination of sexual identity, leaving the latter susceptible to being infinitely de- and reconstructed. This article also reviews the liberal-hedonistic context of the new postmodern setting, while showing how the concepts of ″a subjective feeling of happiness″ and ″a life fulfilled″ do not express similar content. The paper goes on to challenge the theory of gender from the perspective of metaphysic realism; stressing that the human being only appears as a real person via the possibility of anticipating another's contemplation, thereby cancelling out the abstraction of pure subjectivity. It finally offers its conclusions, with certain substantive recommendations in the field of education.

First spinning cylinder test analysis by using local approach to fracture

International Nuclear Information System (INIS)

Eripret, C.; Rousselier, G.

1993-01-01

In recent years, several experimental programs on large scale specimens were organized to evaluate capabilities of the fracture mechanics concepts employed in structural integrity assessment of PWR pressure vessels. During the first spinning cylinder test, a geometry effect was experimentally pointed out and exhibited the problem of transferability of toughness data from small scale to large scale specimens. An original analysis of this test, by means of local approach to fracture is presented in this paper. Both compact tension specimen and spinning cylinder fracture behaviour were computed by using a continuum damage mechanics model developed at EDF. The authors confirmed by numerical analysis that the cylinder's resistance to ductile tearing was considerably larger than in small scale fracture mechanics specimens tests, about 50 percent. The final crack growth predicted by the model was close to the experimental value. Discrepancies in J-R curves seemed to be due to an effect of stress triaxiality and plastic zone evolution. The geometry effect inducing differences in resistance to ductile tearing of the material involved in the specimens can be investigated and explained by using local approach to fracture methodology. 14 refs., 9 figs., 2 tabs

The Caledonian face test: A new test of face discrimination.

Science.gov (United States)

Logan, Andrew J; Wilkinson, Frances; Wilson, Hugh R; Gordon, Gael E; Loffler, Gunter

2016-02-01

This study aimed to develop a clinical test of face perception which is applicable to a wide range of patients and can capture normal variability. The Caledonian face test utilises synthetic faces which combine simplicity with sufficient realism to permit individual identification. Face discrimination thresholds (i.e. minimum difference between faces required for accurate discrimination) were determined in an "odd-one-out" task. The difference between faces was controlled by an adaptive QUEST procedure. A broad range of face discrimination sensitivity was determined from a group (N=52) of young adults (mean 5.75%; SD 1.18; range 3.33-8.84%). The test is fast (3-4 min), repeatable (test-re-test r(2)=0.795) and demonstrates a significant inversion effect. The potential to identify impairments of face discrimination was evaluated by testing LM who reported a lifelong difficulty with face perception. While LM's impairment for two established face tests was close to the criterion for significance (Z-scores of -2.20 and -2.27) for the Caledonian face test, her Z-score was -7.26, implying a more than threefold higher sensitivity. The new face test provides a quantifiable and repeatable assessment of face discrimination ability. The enhanced sensitivity suggests that the Caledonian face test may be capable of detecting more subtle impairments of face perception than available tests. Copyright © 2015 Elsevier Ltd. All rights reserved.

Improving students’ creative thinking skill through local material-based experiment (LMBE) on protein qualitative test

Science.gov (United States)

Supriyanti, F. M. T.; Halimatul, H. S.

2018-05-01

This study aims to enhance chemistry students’ creative thinking skills using material from local resources on protein qualitative test experiment (LMBE). In this study, a quasi experiment method using one group pretest-postest non-equivalen control group design was carried out on the effectiveness of local material-based experiment approach. The data was collected using the test consists of five assay test and student work sheet (LKM). The effectiveness of the local material-based experiment was tested by means of percentage of normalized gain and score percentage of students’ worksheet. Comparison of creative thinking skills pretest and postest scores showed that the implementation of local material- based experiment (LMBE) enhanced students’s creative thinking skills in experiment class with the value of normalized gain (=0,77) at high category, while in control class reached to =0,44 at medium category. In addition, the LKM shown the enhancements of all aspect of creative thinking skills, including fluency, flexibility, and elaboration skills with the score of in experiment class are 0.79; 0.75; and 0.87 at high category, respectively. In contrast, the only the elaboration skill of control group was improved at high category (=0.76), while fluency and flexibility indicators enhanced at medium category (=0.48 and 0.56, respectively).

Local tolerance testing of parenteral drugs: how to put into practice.

Science.gov (United States)

Jochims, Karin; Kemkowski, Joerg; Nolte, Thomas; Bartels, Thomas; Heusener, Alexander

2003-10-01

Notwithstanding that there are national and international guidelines about local tolerance testing of parenteral drugs in animals, in particular to mention CPMP/SWP/2145/00 (Note for Guidance on Non-Clinical Local Tolerance Testing of Medicinal Products), very heterogeneous study designs have been established in the past. A working group including experts of the leading pharmaceutical industry from German-language countries, named "Arbeitskreis Lokale Verträglichkeit," has been intensively discussing the experimental procedures in detail for a period of six years and has been considering their pros and cons. This team of experts now feels confident to give some recommendations for study conduct besides describing different materials and methods for this type of toxicological study. Special knowledge from toxicologists as well as pathologists from our working group has been taken into account. This paper deals with choice of species, number of animals used, controls, administration sites, volumes, rate and frequency, length of observation period, termination, clinical, macroscopic and histopathological examinations and, finally, overall assessment criteria and conclusion. Our purpose is that this paper may be of value for: *The study director who is inexperienced in the conduction of local tolerance testing and who may need a standard design as his first step into this new field. *The well-versed study director who would like to know how others have done in the past, who may examine self-critically his own practice and who is open to our team's recommendations, tips and tricks from practice. *The specialist at a regulatory authority who, finally, reviews study reports, assesses their format and content and, above all, decides on the approval of a drug product.

Experimental violation of a Bell's inequality with efficient detection.

Science.gov (United States)

Rowe, M A; Kielpinski, D; Meyer, V; Sackett, C A; Itano, W M; Monroe, C; Wineland, D J

2001-02-15

Local realism is the idea that objects have definite properties whether or not they are measured, and that measurements of these properties are not affected by events taking place sufficiently far away. Einstein, Podolsky and Rosen used these reasonable assumptions to conclude that quantum mechanics is incomplete. Starting in 1965, Bell and others constructed mathematical inequalities whereby experimental tests could distinguish between quantum mechanics and local realistic theories. Many experiments have since been done that are consistent with quantum mechanics and inconsistent with local realism. But these conclusions remain the subject of considerable interest and debate, and experiments are still being refined to overcome 'loopholes' that might allow a local realistic interpretation. Here we have measured correlations in the classical properties of massive entangled particles (9Be+ ions): these correlations violate a form of Bell's inequality. Our measured value of the appropriate Bell's 'signal' is 2.25 +/- 0.03, whereas a value of 2 is the maximum allowed by local realistic theories of nature. In contrast to previous measurements with massive particles, this violation of Bell's inequality was obtained by use of a complete set of measurements. Moreover, the high detection efficiency of our apparatus eliminates the so-called 'detection' loophole.

Sensitivity of BWR shutdown margin tests to local reactivity anomalies

International Nuclear Information System (INIS)

Cokinos, D.M.; Carew, J.F.

1987-01-01

Successful shutdown margin (SDM) demonstration is a required procedure in the startup of a newly configured boiling water reactor (BWR) core. In its most reactive condition throughout a cycle, a BWR core must be capable of being made subcritical by a specified margin with the highest worth control rod fully withdrawn and all other rods at their fully inserted positions. Two different methods are used to demonstrate SDM: (a) the adjacent-rod test and (b) the in-sequence test. In the adjacent-rod test, the strongest rod is fully withdrawn and an adjacent rod is withdrawn to reach criticality. In the in-sequence test, control rods spread throughout the core are withdrawn in a predetermined sequence of withdrawals. Larger than expected core k/sub eff/ values have been observed during the performance of BWR SDM tests. The purpose of the work summarized in this paper has been to investigated and quantify the sensitivity of both the adjacent-rod and in-sequence SDM tests to local reactivity anomalies. This was accomplished by introducing reactivity perturbations at selected four-bundle cell locations and by evaluating their effect on core reactivity in each of the two tests

Local and omnibus goodness-of-fit tests in classical measurement error models

KAUST Repository

Ma, Yanyuan; Hart, Jeffrey D.; Janicki, Ryan; Carroll, Raymond J.

2010-01-01

We consider functional measurement error models, i.e. models where covariates are measured with error and yet no distributional assumptions are made about the mismeasured variable. We propose and study a score-type local test and an orthogonal

Depression, realism, and the overconfidence effect: are the sadder wiser when predicting future actions and events?

Science.gov (United States)

Dunning, D; Story, A L

1991-10-01

Do depressed individuals make more realistic judgments than their nondepressed peers in real world settings? Depressed and nondepressed Ss in 2 studies were asked to make predictions about future actions and outcomes that might occur in their personal academic and social worlds. Both groups of Ss displayed overconfidence, that is, they overestimated the likelihood that their predictions would prove to be accurate. Of key importance, depressed Ss were less accurate in their predictions, and thus more overconfident, than their nondepressed counterparts. These differences arose because depressed Ss (a) were more likely to predict the occurrence of low base-rate events and (b) were less likely to be correct when they made optimistic predictions (i.e., stated that positive events would occur or that aversive outcomes would not). Discussion focuses on implications of these findings for the depressive realism hypothesis.

Noise Localization Method for Model Tests in a Large Cavitation Tunnel Using a Hydrophone Array

Directory of Open Access Journals (Sweden)

Cheolsoo Park

2016-02-01

Full Text Available Model tests are performed in order to predict the noise level of a full ship and to control its noise signature. Localizing noise sources in the model test is therefore an important research subject along with measuring noise levels. In this paper, a noise localization method using a hydrophone array in a large cavitation tunnel is presented. The 45-channel hydrophone array was designed using a global optimization technique for noise measurement. A set of noise experiments was performed in the KRISO (Korea Research Institute of Ships & Ocean Engineering large cavitation tunnel using scaled models, including a ship with a single propeller, a ship with twin propellers and an underwater vehicle. The incoherent broadband processors defined based on the Bartlett and the minimum variance (MV processors were applied to the measured data. The results of data analysis and localization are presented in the paper. Finally, it is shown that the mechanical noise, as well as the propeller noise can be successfully localized using the proposed localization method.

Development of field simulator to test and qualify the gyrotron local control unit for ITER-India Gyrotron Test Facility

International Nuclear Information System (INIS)

Shah, Ronak; Mandge, Deepak; Rathod, Vipal; Parmar, Rajvi; Dilip, E. Sharan; Yadav, Amit; Sharma, Anjali; Rao, S.L.

2017-01-01

High power RF sources such as a Gyrotron system are operated at required output parameter by using various auxiliary power supplies, High voltage power supplies, auxiliary services and a dedicated Local Control Unit (LCU). These sub-systems must be operated in synchronous and safe way to control the gyrotron output parameters. The LCU performs remote, synchronous and safe operation of the all the gyrotron sub-systems. Broadly the LCU functions are operational control, data acquisition, protection and safety of the gyrotron system. At ITER-India gyrotron Test Facility (IIGTF) a local control unit (LCU) is being developed to operate the complete gyrotron system. This paper presents the design, development and various features of the field simulator. It also discuss LCU functionality test cases and results obtained using field simulator

Modeling Local Item Dependence in Cloze and Reading Comprehension Test Items Using Testlet Response Theory

Science.gov (United States)

Baghaei, Purya; Ravand, Hamdollah

2016-01-01

In this study the magnitudes of local dependence generated by cloze test items and reading comprehension items were compared and their impact on parameter estimates and test precision was investigated. An advanced English as a foreign language reading comprehension test containing three reading passages and a cloze test was analyzed with a…

The local lymph node assay and skin sensitization testing.

Science.gov (United States)

Kimber, Ian; Dearman, Rebecca J

2010-01-01

The mouse local lymph node assay (LLNA) is a method for the identification and characterization of skin sensitization hazards. In this context the method can be used both to identify contact allergens, and also determine the relative skin sensitizing potency as a basis for derivation of effective risk assessments.The assay is based on measurement of proliferative responses by draining lymph node cells induced following topical exposure of mice to test chemicals. Such responses are known to be causally and quantitatively associated with the acquisition of skin sensitization and therefore provide a relevant marker for characterization of contact allergic potential.The LLNA has been the subject of exhaustive evaluation and validation exercises and has been assigned Organization for Economic Cooperation and Development (OECD) test guideline 429. Herein we describe the conduct and interpretation of the LLNA.

Finite Element Analysis of the Amontons-Coulomb's Model using Local and Global Friction Tests

International Nuclear Information System (INIS)

Oliveira, M. C.; Menezes, L. F.; Ramalho, A.; Alves, J. L.

2011-01-01

In spite of the abundant number of experimental friction tests that have been reported, the contact with friction modeling persists to be one of the factors that determine the effectiveness of sheet metal forming simulation. This difficulty can be understood due to the nature of the friction phenomena, which comprises the interaction of different factors connected to both sheet and tools' surfaces. Although in finite element numerical simulations friction models are commonly applied at the local level, they normally rely on parameters identified based on global experimental tests results. The aim of this study is to analyze the applicability of the Amontons-Coulomb's friction coefficient identified using complementary tests: (i) load-scanning, at the local level and (ii) draw-bead, at the global level; to the numerical simulation of sheet metal forming processes.

Test of Einstein locality

International Nuclear Information System (INIS)

Roos, Matts

1980-11-01

Einstein locality imples that spacelike separated coherent quantum systems do not interfere, and that all interferences must propagate with at most the speed of light. It then follows that the reaction e + e - →K 0 antiK 0 must yield some Ksub(s)Ksuu(s) decays in apparent violation of P and C conservation. (author)

A significant-loophole-free test of Bell's theorem with entangled photons

Science.gov (United States)

Giustina, Marissa; Versteegh, Marijn A. M.; Wengerowsky, Sören; Handsteiner, Johannes; Hochrainer, Armin; Phelan, Kevin; Steinlechner, Fabian; Kofler, Johannes; Larsson, Jan-Åke; Abellán, Carlos; Amaya, Waldimar; Mitchell, Morgan W.; Beyer, Jörn; Gerrits, Thomas; Lita, Adriana E.; Shalm, Lynden K.; Nam, Sae Woo; Scheidl, Thomas; Ursin, Rupert; Wittmann, Bernhard; Zeilinger, Anton

2017-10-01

John Bell's theorem of 1964 states that local elements of physical reality, existing independent of measurement, are inconsistent with the predictions of quantum mechanics (Bell, J. S. (1964), Physics (College. Park. Md). Specifically, correlations between measurement results from distant entangled systems would be smaller than predicted by quantum physics. This is expressed in Bell's inequalities. Employing modifications of Bell's inequalities, many experiments have been performed that convincingly support the quantum predictions. Yet, all experiments rely on assumptions, which provide loopholes for a local realist explanation of the measurement. Here we report an experiment with polarization-entangled photons that simultaneously closes the most significant of these loopholes. We use a highly efficient source of entangled photons, distributed these over a distance of 58.5 meters, and implemented rapid random setting generation and high-efficiency detection to observe a violation of a Bell inequality with high statistical significance. The merely statistical probability of our results to occur under local realism is less than 3.74×10-31, corresponding to an 11.5 standard deviation effect.

Self-esteem and perceptions of conveyed impressions: is negative affectivity associated with greater realism?

Science.gov (United States)

Campbell, J D; Fehr, B

1990-01-01

Two studies examined the notion that negative affectivity (Watson & Clark, 1984) is associated with more accurate perceptions of conveyed impressions in social interactions. In Study 1 (n = 160), low self-esteem (LSE) and high self-esteem (HSE) subjects were paired with either an LSE or an HSE partner. After a 15-min interaction, they rated themselves, their partners, and how they believed their partners would rate them on 20 adjectives related to social competence. Study 2 (n = 40) was identical except that each interaction was observed by 2 observers who rated each participant, and participants also rated how they believed an observer would rate them. LSE subjects exhibited greater accuracy only with respect to the elevation component of observers' ratings; HSE subjects overestimated the positivity of observers' evaluations, whereas LSE subjects were relatively accurate. However, LSE subjects exhibited less overall accuracy with respect to their partners' ratings. We argue that when these results are considered with earlier research, there is no support for the notion of depressive realism in assessing conveyed impressions.

An Effective Strategy to Build Up a Balanced Test Suite for Spectrum-Based Fault Localization

Directory of Open Access Journals (Sweden)

Ning Li

2016-01-01

Full Text Available During past decades, many automated software faults diagnosis techniques including Spectrum-Based Fault Localization (SBFL have been proposed to improve the efficiency of software debugging activity. In the field of SBFL, suspiciousness calculation is closely related to the number of failed and passed test cases. Studies have shown that the ratio of the number of failed and passed test case has more significant impact on the accuracy of SBFL than the total number of test cases, and a balanced test suite is more beneficial to improving the accuracy of SBFL. Based on theoretical analysis, we proposed an PNF (Passed test cases, Not execute Faulty statement strategy to reduce test suite and build up a more balanced one for SBFL, which can be used in regression testing. We evaluated the strategy making experiments using the Siemens program and Space program. Experiments indicated that our PNF strategy can be used to construct a new test suite effectively. Compared with the original test suite, the new one has smaller size (average 90% test case was reduced in experiments and more balanced ratio of failed test cases to passed test cases, while it has the same statement coverage and fault localization accuracy.

Local tolerance testing under REACH: Accepted non-animal methods are not on equal footing with animal tests.

Science.gov (United States)

Sauer, Ursula G; Hill, Erin H; Curren, Rodger D; Raabe, Hans A; Kolle, Susanne N; Teubner, Wera; Mehling, Annette; Landsiedel, Robert

2016-07-01

In general, no single non-animal method can cover the complexity of any given animal test. Therefore, fixed sets of in vitro (and in chemico) methods have been combined into testing strategies for skin and eye irritation and skin sensitisation testing, with pre-defined prediction models for substance classification. Many of these methods have been adopted as OECD test guidelines. Various testing strategies have been successfully validated in extensive in-house and inter-laboratory studies, but they have not yet received formal acceptance for substance classification. Therefore, under the European REACH Regulation, data from testing strategies can, in general, only be used in so-called weight-of-evidence approaches. While animal testing data generated under the specific REACH information requirements are per se sufficient, the sufficiency of weight-of-evidence approaches can be questioned under the REACH system, and further animal testing can be required. This constitutes an imbalance between the regulatory acceptance of data from approved non-animal methods and animal tests that is not justified on scientific grounds. To ensure that testing strategies for local tolerance testing truly serve to replace animal testing for the REACH registration 2018 deadline (when the majority of existing chemicals have to be registered), clarity on their regulatory acceptance as complete replacements is urgently required. 2016 FRAME.

A Study for Visual Realism of Designed Pictures on Computer Screens by Investigation and Brain-Wave Analyses.

Science.gov (United States)

Wang, Lan-Ting; Lee, Kun-Chou

2016-08-01

In this article, the visual realism of designed pictures on computer screens is studied by investigation and brain-wave analyses. The practical electroencephalogram (EEG) measurement is always time-varying and fluctuating so that conventional statistical techniques are not adequate for analyses. This study proposes a new scheme based on "fingerprinting" to analyze the EEG. Fingerprinting is a technique of probabilistic pattern recognition used in electrical engineering, very like the identification of human fingerprinting in a criminal investigation. The goal of this study was to assess whether subjective preference for pictures could be manifested physiologically by EEG fingerprinting analyses. The most important advantage of the fingerprinting technique is that it does not require accurate measurement. Instead, it uses probabilistic classification. Participants' preference for pictures can be assessed using fingerprinting analyses of physiological EEG measurements. © The Author(s) 2016.

Multipartite nonlocality and random measurements

Science.gov (United States)

de Rosier, Anna; Gruca, Jacek; Parisio, Fernando; Vértesi, Tamás; Laskowski, Wiesław

2017-07-01

We present an exhaustive numerical analysis of violations of local realism by families of multipartite quantum states. As an indicator of nonclassicality we employ the probability of violation for randomly sampled observables. Surprisingly, it rapidly increases with the number of parties or settings and even for relatively small values local realism is violated for almost all observables. We have observed this effect to be typical in the sense that it emerged for all investigated states including some with randomly drawn coefficients. We also present the probability of violation as a witness of genuine multipartite entanglement.

Asymmetric multipartite Greenberger-Horne-Zeilinger states and Bell inequalities

International Nuclear Information System (INIS)

Gosal, Darwin; Oh, C.H.; Kaszlikowski, Dagomir; Kwek, L.C.; Zukowski, M.

2004-01-01

We study the multiparticle generalized GHZ states. It has been shown that for an odd number of qubits and for a specific range of parameters, they do not violate any Bell inequality for correlation functions. We show here both analytically and numerically that, nevertheless, such states violate local realism, once a more detailed analysis of the correlations is made than the one allowed by correlation functions. The results imply that multiparticle Clauser-Horne-type inequalities involving probabilities are stronger tools for analyzing violations of local realism in multiparticle systems than inequalities involving the correlation functions

Complex Parts, Complex Data: Why You Need to Understand What Radiation Single Event Testing Data Does and Doesn't Show and the Implications Thereof

Science.gov (United States)

LaBel, Kenneth A.; Berg, Melanie D.

2015-01-01

Electronic parts (integrated circuits) have grown in complexity such that determining all failure modes and risks from single particle event testing is impossible. In this presentation, the authors will present why this is so and provide some realism on what this means. Its all about understanding actual risks and not making assumptions.

Bell inequalities under non-ideal conditions

OpenAIRE

Especial, João N. C.

2012-01-01

Bell inequalities applicable to non-ideal EPRB experiments are critical to the interpretation of experimental Bell tests. In this article it is shown that previous treatments of this subject are incorrect due to an implicit assumption and new inequalities are derived under general conditions. Published experimental evidence is reinterpreted under these results and found to be entirely compatible with local-realism, both, when experiments involve inefficient detection, if fair-sampling detecti...

Effects of realism on extended violent and nonviolent video game play on aggressive thoughts, feelings, and physiological arousal.

Science.gov (United States)

Barlett, Christopher P; Rodeheffer, Christopher

2009-01-01

Previous research has shown that playing violent video game exposure can increase aggressive thoughts, aggressive feelings, and physiological arousal. This study compared the effects that playing a realistic violent, unrealistic violent, or nonviolent video game for 45 min has on such variables. For the purpose of this study, realism was defined as the probability of seeing an event in real life. Participants (N=74; 39 male, 35 female) played either a realistic violent, unrealistic violent, or nonviolent video game for 45 min. Aggressive thoughts and aggressive feelings were measured four times (every 15 min), whereas arousal was measured continuously. The results showed that, though playing any violent game stimulated aggressive thoughts, playing a more realistic violent game stimulated significantly more aggressive feelings and arousal over the course of play. Copyright 2009 Wiley-Liss, Inc.

Using a "time machine" to test for local adaptation of aquatic microbes to temporal and spatial environmental variation.

Science.gov (United States)

Fox, Jeremy W; Harder, Lawrence D

2015-01-01

Local adaptation occurs when different environments are dominated by different specialist genotypes, each of which is relatively fit in its local conditions and relatively unfit under other conditions. Analogously, ecological species sorting occurs when different environments are dominated by different competing species, each of which is relatively fit in its local conditions. The simplest theory predicts that spatial, but not temporal, environmental variation selects for local adaptation (or generates species sorting), but this prediction is difficult to test. Although organisms can be reciprocally transplanted among sites, doing so among times seems implausible. Here, we describe a reciprocal transplant experiment testing for local adaptation or species sorting of lake bacteria in response to both temporal and spatial variation in water chemistry. The experiment used a -80°C freezer as a "time machine." Bacterial isolates and water samples were frozen for later use, allowing transplantation of older isolates "forward in time" and newer isolates "backward in time." Surprisingly, local maladaptation predominated over local adaptation in both space and time. Such local maladaptation may indicate that adaptation, or the analogous species sorting process, fails to keep pace with temporal fluctuations in water chemistry. This hypothesis could be tested with more finely resolved temporal data. © 2014 The Author(s). Evolution © 2014 The Society for the Study of Evolution.

Service-cycle component-feature specimen TMF testing of steam turbine rotor steels

Energy Technology Data Exchange (ETDEWEB)

Radosavljevic, M.; Holdsworth, S.R. [Eidgenoessische Materialpruefungs- und Forschungsanstalt, Duebendorf (Switzerland); Mazza, E. [Eidgenoessische Materialpruefungs- und Forschungsanstalt, Duebendorf (Switzerland); Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland); Grossmann, P.; Ripamonti, L. [ALSTOM Power (Switzerland) Ltd., Baden (Switzerland)

2010-07-01

This paper reviews the methodology adopted in a Swiss Research Collaboration to devise a component-feature representative specimen geometry and the TMF cycle parameters necessary to closely simulate arduous steam turbine operating duty. Implementation of these service-like experimental conditions provides a practical indication of the effectiveness of deformation and crack initiation endurance predictions. Comprehensive post test inspection provides evidence to demonstrate the physical realism of the laboratory simulations in terms of the creep-fatigue damage generated during the benchmark tests. Mechanical response results and physical damage observations are presented and their practical implications discussed for the example of a 2%CrMoNiWV rotor service cycle. (orig.)

Testing of camera performance standards at steady and local overloading

International Nuclear Information System (INIS)

Keszthelyine Landori, S.; Adorjanne Farkas, M.; Csirik, J.

1983-01-01

Camera performance standards are usually given for low count rates and uniform irradiation. A conventional analog gamma camera system (Gamma MB 9100 manufactured under the know-how of Picker DC 4/12 in Hungary) was studied on the basis of the Picker test procedure and the NEMA standard system. Uniformity, linearity, spatial and energy resolution were measured at high count rates and uniform irradiation (steady overloading). Linearity was studied at local overloading. Linearity, spatial and energy resolution were measured by a 1024-channel analyzer-computer system of KFKI, Hungary. The data were evaluated on the basis of NEMA standards, while uniformity was measured by the Gamma data processing system and evaluated by special SEGAMS programs. Performance variations were studied between 7500 cps and 75.000 cps pulse rates. Spatial and energy resolution were influenced strongly, uniformity slightly by pulse rates, while linearity did not change at all. Linearity was not influenced even by local overloading. (author)

Developing and Testing a Theoretical Framework for Computer-Mediated Transparency of Local Governments

NARCIS (Netherlands)

Grimmelikhuijsen, S.G.; Welch, E.W.

2012-01-01

This article contributes to the emerging literature on transparency by developing and empirically testing a theoretical framework that explains the determinants of local government Web site transparency. It aims to answer the following central question: What institutional factors determine the

Local conditions and uncertainty bands for Semiscale Test S-02-9

International Nuclear Information System (INIS)

Varacalle, D.J. Jr.

1979-01-01

Analysis was performed to derive local conditions heat transfer parameters and their uncertainties using computer codes and experimentally derived boundary conditions for the Semiscale core for LOCA Test S-02-9. Calculations performed consisted of nominal code cases using best-estimate input parameters and cases where the specified input parameters were perturbed in accordance with the response surface method of uncertainty analysis. The output parameters of interest were those that are used in film boiling heat transfer correlations including enthalpy, pressure, quality, and coolant flow rate. Large uncertainty deviations occurred during low core mass flow periods where the relative flow uncertainties were large. Utilizing the derived local conditions and their associated uncertainties, a study was then made which showed the uncertainty in film boiling heat transfer coefficient varied between 5 and 250%

The community Noah land surface model with multiparameterization options (Noah-MP): 1. Model description and evaluation with local-scale measurements

KAUST Repository

Niu, Guo-Yue

2011-06-24

This first paper of the two-part series describes the objectives of the community efforts in improving the Noah land surface model (LSM), documents, through mathematical formulations, the augmented conceptual realism in biophysical and hydrological processes, and introduces a framework for multiple options to parameterize selected processes (Noah-MP). The Noah-MP\\'s performance is evaluated at various local sites using high temporal frequency data sets, and results show the advantages of using multiple optional schemes to interpret the differences in modeling simulations. The second paper focuses on ensemble evaluations with long-term regional (basin) and global scale data sets. The enhanced conceptual realism includes (1) the vegetation canopy energy balance, (2) the layered snowpack, (3) frozen soil and infiltration, (4) soil moisture-groundwater interaction and related runoff production, and (5) vegetation phenology. Sample local-scale validations are conducted over the First International Satellite Land Surface Climatology Project (ISLSCP) Field Experiment (FIFE) site, the W3 catchment of Sleepers River, Vermont, and a French snow observation site. Noah-MP shows apparent improvements in reproducing surface fluxes, skin temperature over dry periods, snow water equivalent (SWE), snow depth, and runoff over Noah LSM version 3.0. Noah-MP improves the SWE simulations due to more accurate simulations of the diurnal variations of the snow skin temperature, which is critical for computing available energy for melting. Noah-MP also improves the simulation of runoff peaks and timing by introducing a more permeable frozen soil and more accurate simulation of snowmelt. We also demonstrate that Noah-MP is an effective research tool by which modeling results for a given process can be interpreted through multiple optional parameterization schemes in the same model framework. Copyright © 2011 by the American Geophysical Union.

Central Asia as a Regional Security Complex from the Perspectives of Realism, Liberalism and Constructivism

Directory of Open Access Journals (Sweden)

Caroline Putri Pratama

2013-05-01

Full Text Available Tulisan ini bertujuan menganalisis kawasan Asia Tengah, dilihat dari perspektif Realisme, Liberalisme dan Konstruktivisme, melalui teori Regional Security Complex oleh Barry Buzan dan Ole Waever. Teori ini hendak menunjukkan keamanan regional berdasarkan interdependensi antar unit dalam kawasan dilihat dari struktur power dan proses sekuritisasi di dalamnya, demikian pola hubungan keamanan dalam kawasan Asia Tengah berusaha dijelaskan dengan elemen-elemen dari ketiga paradigma yang terdapat dalam teori tersebut. Hasil analisis tulisan ini menunjukkan bahwa Asia Tengah dipandang sebagai bentuk insecurity interdependence by external forces dari perspektif Realis, security interdependence by interest dari perspektif Liberalis dan securitization interdependence by understanding of threat/security dari perspektif Konstruktivis. Kompleks keamanan Asia Tengah termasuk dalam tipe kompleks keamanan Great Power, terlihat dari peran besar kekuatan-kekuatan eksternal terutama Rusia dan Cina dalam kawasan tersebut; baik dalam pembentukan pola pertemanan dengan kerjasama, pola permusuhan dengan persaingan dan ketakutan, juga proses sekuritisasi isu separatisme, ekstremisme dan terorisme sebagai ancaman terhadap keamanan regional.Tulisan ini diambil dari tugas karya akhir penulis yang diajukan untuk medapatkan gelar Sarjana Sosial dari Departemen Ilmu Hubungan Internasional, Universitas Indonesia.

Alimentary tract absorption (f1 values) for radionuclides in local and regional fallout from nuclear tests.

Science.gov (United States)

Ibrahim, Shawki A; Simon, Steven L; Bouville, André; Melo, Dunstana; Beck, Harold L

2010-08-01

This paper presents gastrointestinal absorption fractions (f1 values) for estimating internal doses from local and regional fallout radionuclides due to nuclear tests. The choice of f1 values are based on specific circumstances of weapons test conditions and a review of reported f1 values for elements in different physical and chemical states. Special attention is given to fallout from nuclear tests conducted at the Marshall Islands. We make a distinction between the f1 values for intakes of radioactive materials immediately after deposition (acute intakes) and intakes that occur in the course of months and years after deposition, following incorporation into terrestrial and aquatic foodstuffs (chronic intakes). Multiple f1 values for different circumstances where persons are exposed to radioactive fallout (e.g., local vs. regional fallout and coral vs. continental tests) are presented when supportive information is available. In some cases, our selected f1 values are similar to those adopted by the International Commission on Radiological Protection (ICRP) (e.g., iodine and most actinides). However, f1 values for cesium and strontium derived from urine bioassay data of the Marshallese population are notably lower than the generic f1 values recommended by ICRP, particularly for acute intakes from local fallout (0.4 and 0.05 for Cs and Sr, respectively). The f1 values presented here form the first complete set of values relevant to realistic dose assessments for exposure to local or regional radioactive fallout.

Feeling and time: the phenomenology of mood disorders, depressive realism, and existential psychotherapy.

Science.gov (United States)

Ghaemi, S Nassir

2007-01-01

Phenomenological research suggests that pure manic and depressive states are less common than mixtures of the two and that the two poles of mood are characterized by opposite ways of experiencing time. In mania, the subjective experience of time is sped up and in depression it is slowed down, perhaps reflecting differences in circadian pathophysiology. The two classic mood states are also quite different in their effect on subjective awareness: manic patients lack insight into their excitation, while depressed patients are quite insightful into their unhappiness. Consequently, insight plays a major role in overdiagnosis of unipolar depression and misdiagnosis of bipolar disorder. The phenomenology of depression also is relevant to types of psychotherapies used to treat it. The depressive realism (DR) model, in contrast to the cognitive distortion model, appears to better apply to many persons with mild to moderate depressive syndromes. I suggest that existential psychotherapy is the necessary corollary of the DR model in those cases. Further, some depressive morbidities may in fact prove, after phenomenological study, to involve other mental states instead of depression. The chronic sub-syndromal depression that is often the long-term consequence of treated bipolar disorder may in fact represent existential despair, rather than depression proper, again suggesting intervention with existential psychotherapeutic methods.

Feeling and Time: The Phenomenology of Mood Disorders, Depressive Realism, and Existential Psychotherapy

Science.gov (United States)

Ghaemi, S. Nassir

2007-01-01

Phenomenological research suggests that pure manic and depressive states are less common than mixtures of the two and that the two poles of mood are characterized by opposite ways of experiencing time. In mania, the subjective experience of time is sped up and in depression it is slowed down, perhaps reflecting differences in circadian pathophysiology. The two classic mood states are also quite different in their effect on subjective awareness: manic patients lack insight into their excitation, while depressed patients are quite insightful into their unhappiness. Consequently, insight plays a major role in overdiagnosis of unipolar depression and misdiagnosis of bipolar disorder. The phenomenology of depression also is relevant to types of psychotherapies used to treat it. The depressive realism (DR) model, in contrast to the cognitive distortion model, appears to better apply to many persons with mild to moderate depressive syndromes. I suggest that existential psychotherapy is the necessary corollary of the DR model in those cases. Further, some depressive morbidities may in fact prove, after phenomenological study, to involve other mental states instead of depression. The chronic subsyndromal depression that is often the long-term consequence of treated bipolar disorder may in fact represent existential despair, rather than depression proper, again suggesting intervention with existential psychotherapeutic methods. PMID:17122410

Memory-impairing effects of local anesthetics in an elevated plus-maze test in mice

Directory of Open Access Journals (Sweden)

S.L. Blatt

1998-04-01

Full Text Available Post-training intracerebroventricular administration of procaine (20 µg/µl and dimethocaine (10 or 20 µg/µl, local anesthetics of the ester class, prolonged the latency (s in the retention test of male and female 3-month-old Swiss albino mice (25-35 g body weight; N = 140 in the elevated plus-maze (mean ± SEM for 10 male mice: control = 41.2 ± 8.1; procaine = 78.5 ± 10.3; 10 µg/µl dimethocaine = 58.7 ± 12.3; 20 µg/µl dimethocaine = 109.6 ± 5.73; for 10 female mice: control = 34.8 ± 5.8; procaine = 55.3 ± 13.4; 10 µg/µl dimethocaine = 59.9 ± 12.3 and 20 µg/µl dimethocaine = 61.3 ± 11.1. However, lidocaine (10 or 20 µg/µl, an amide class type of local anesthetic, failed to influence this parameter. Local anesthetics at the dose range used did not affect the motor coordination of mice exposed to the rota-rod test. These results suggest that procaine and dimethocaine impair some memory process(es in the plus-maze test. These findings are interpreted in terms of non-anesthetic mechanisms of action of these drugs on memory impairment and also confirm the validity of the elevated plus-maze for the evaluation of drugs affecting learning and memory in mice

Testing of motor unit synchronization model for localized muscle fatigue.

Science.gov (United States)

Naik, Ganesh R; Kumar, Dinesh K; Yadav, Vivek; Wheeler, Katherine; Arjunan, Sridhar

2009-01-01

Spectral compression of surface electromyogram (sEMG) is associated with onset of localized muscle fatigue. The spectral compression has been explained based on motor unit synchronization theory. According to this theory, motor units are pseudo randomly excited during muscle contraction, and with the onset of muscle fatigue the recruitment pattern changes such that motor unit firings become more synchronized. While this is widely accepted, there is little experimental proof of this phenomenon. This paper has used source dependence measures developed in research related to independent component analysis (ICA) to test this theory.

Feasibility of testing local hidden variable theories in a Charm factory

International Nuclear Information System (INIS)

Li Junli; Qiao Congfeng

2006-01-01

It is commonly believed that the local hidden variable theories (LHVTs) can be tested through measuring the Bell inequalities. This scheme, for the massive particle system, was originally set up for the entangled K 0 K 0 pair system from the φ factory. In this paper we show that the J/Ψ→K 0 K 0 process is even more realistic for this goal. We analyze the unique properties of J/Ψ in the detection of basic quantum effects, and find that it is possible to use J/Ψ decay as a test of LHVTs in the future τ-charm factory. Our analyses and conclusions are generally also true for other heavy onium decays

Peer role-play and standardised patients in communication training: a comparative study on the student perspective on acceptability, realism, and perceived effect

Directory of Open Access Journals (Sweden)

Schultz Jobst H

2010-03-01

Full Text Available Abstract Background To assess the student perspective on acceptability, realism, and perceived effect of communication training with peer role play (RP and standardised patients (SP. Methods 69 prefinal year students from a large German medical faculty were randomly assigned to one of two groups receiving communication training with RP (N = 34 or SP (N = 35 in the course of their paediatric rotation. In both groups, training addressed major medical and communication problems encountered in the exploration and counselling of parents of sick children. Acceptability and realism of the training as well as perceived effects and applicability for future parent-physician encounters were assessed using six-point Likert scales. Results Both forms of training were highly accepted (RP 5.32 ± .41, SP 5.51 ± .44, n.s.; 6 = very good, 1 = very poor and perceived to be highly realistic (RP 5.60 ± .38, SP 5.53 ± .36, n.s.; 6 = highly realistic, 1 = unrealistic. Regarding perceived effects, participation was seen to be significantly more worthwhile in the SP group (RP 5.17 ± .37, SP 5.50 ± .43; p Conclusions RP and SP represent comparably valuable tools for the training of specific communication skills from the student perspective. Both provide highly realistic training scenarios and warrant inclusion in medical curricula. Given the expense of SP, deciding which method to employ should be carefully weighed up. From the perspective of the students in our study, SP were seen as a more useful and more applicable tool than RP. We discuss the potential of RP to foster a greater empathic appreciation of the patient perspective.

Are quantum particles really particulate or Bell theorems without inequalities for two and three spinless particles

International Nuclear Information System (INIS)

Bernstein, H.J.

1992-01-01

The possibility of applying perfect correlation type arguments to two particles is investigated. A disproof of local realism for two spinless particles has been found, but it requires a different extension of the Einstein-Podolsky-Rosen (EPR) approach. This extension adopts an additional assumption beyond those enunciated by EPR, an assumption consistent with a very strongly particulate view of the nature of a quantum mechanical system. Moreover, without extending the EPR program, one can still prove EPR local realism incompatible with quantum mechanics, using only experiments with definite outcomes, if one considers a three-particle system. (R.P.) 9 refs.; 1 fig

Téa Obreht’s Transnational Disremembering within the Mythical Realism of The Tiger’s Wife

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Selma Raljević

2016-06-01

Full Text Available This paper discusses Téa Obreht's 2010 novel The Tiger's Wife within the context of transmigrations and post-national conceptions of both the real and mythical translocality. Through analysis of Obreht’s discourse of disremembering, which is in Aleksandar Hemon’s definition a recognition of one’s own experience under the new narrative, the paper will explore the transnational dimensions of the Slavic-American identity of The Tiger’s Wife. The aim of this paper is to focus on the new understanding of transnational relationality as well as on a reconception of reality that disremembers Obreht’s or, on a larger scale, human experience within the mythical realism of The Tiger’s Wife.Keywords: transnationalism, the Slavic-American identity, disremembering, Aleksandar Hemon, Téa Obreht, The Tiger’s Wife, mythical realismTo disremember, according to Aleksandar Hemon, a celebrated Bosnian-American writer with an immigrant experience, is to recognize one’s own experience under the new narrative. He points out that it especially refers to the “people who have come through a form of actual, physical slaughter, and to the extent the construction of narrative is memory, then the narrative, for them, has to involve a quantity of amnesia. More amnesia that is involved in most narrative” (Interview by Richard Wirick. Disremembering blends non-fiction and fiction, genocide documentation and utopian imagery, and implies an alternative interpretation of reality. Hemon’s 2008 novel The Lazarus Project is a transnational project of disremembering. In The Lazarus Project, Hemon intertwines a double narrative of the multilayered parallel universes of the past and the present by following the narrator Vladimir Brik, a post-war Bosnian who lives in the United States, as he questions his life. Brik traces the story of Lazarus Averbuch, a young Jewish immigrant who is a survivor of the Kishinev pogrom in what is now Moldova, and an alleged

Estrogen receptor alpha localization in the testes of men with normal spermatogenesis.

Science.gov (United States)

Filipiak, Eliza; Suliborska, Dagmara; Laszczynska, Maria; Walczak-Jedrzejowska, Renata; Oszukowska, Elzbieta; Marchlewska, Katarzyna; Kula, Krzysztof; Slowikowska-Hilczer, Jolanta

2013-10-08

It is known that estrogens act on the male reproductive tract by binding to estrogen receptors (ER) α and β. However, studies on ER localization in the human testis are discordant. The aim of this study was to investigate the localization of ERα in the testes of adult men with normal spermatogenesis. Semen analysis of ten adult men revealed azoospermia. FSH, LH and testosterone serum concentrations were within normal values, and the volume of the testes was normal, hence obstructive azoospermia was suspected. The tissues from testicular surgical biopsies were fixed in Bouin's fluid and embedded in paraffin. Assessments of the seminiferous epithelium (scoring 10 to -1), the number of Leydig cells (scoring 1 to 5), the areal fraction of intertubular space (IS), measurements of seminiferous tubule diameter, and the thickness of the tubular wall, were performed on microscopic sections. Immunohistochemical staining was applied with monoclonal antibodies against ERα. The mean spermatogenesis score was 10 points; IS - 30.6 ± 8.1%; seminiferous tubule diameter - 193.9 ± 19.4 μm; thickness of tubular wall - 7.44 ± 1.1 μm; number of Leydig cells - 1.6 ± 1.1 points. Immunohistochemical staining showed the localization of ERα to be in the Sertoli and Leydig cell cytoplasm, while ERα was absent in germ cells. The results of testicular tissue analysis confirmed its normal structure and normal, full spermatogenesis. The presence of ERα in Sertoli and Leydig cells in normal human testis demonstrated in this study suggests that estrogens may affect testicular function.

Historical Materialism Seen Through the Lens of Magical Realism: Gender Relationships in ‘Nights at the Circus’

Directory of Open Access Journals (Sweden)

Emilija Dimitrijevic

2015-08-01

Full Text Available Nights at the Circus (1984 by Angela Carter is widely recognized as a masterpiece of magical realism. At the same time, the novel stands out in the literary genre because of its distinctly materialistic outlook. This essay argues that specific to Carter’s writing is the view of gender discourse as yet another form of idealization of dominant economic relationships. Classical Marxist theory begins with the analysis of capitalism under the Industrial Revolution and extends it to consider its implications in less developed economies. The novel proceeds similarly: it starts with gender relationships most obviously fashioned as economic transactions but explained away as natural, moves on to those apparently less governed by economic interests, and finally examines gender relationships where they appear to be dominated by the supernatural, showing that in all these cases economic relationships are not less decisive but rather differently naturalized.

Feasibility study for a computerized emergency preparedness simulation facility

International Nuclear Information System (INIS)

Gerhardstein, L.H.; Schroeder, J.O.; Sandusky, W.F.

1979-11-01

This report details the feasibility of a computerized Emergency Preparedness Simulation Facility (EPSF) for use by the Nuclear Regulatory Commission (NRC). The proposed facility would be designed to provide the NRC and other federal, state, and local government agencies with a capability to formulate, test, and evaluate the Emergency Preparedness Plans (EPP) which local and state agencies have/will establish for use during nuclear emergencies. In cases of any state emergency (including a nuclear emergency), high level state government officials will direct emergency procedures and insure that state and local emergency teams carry out tasks which have been established in their EPP. When an emergency exists, rapid mobilization of emergency teams, efficient communication, and effective coordination of individual team efforts is essential to safety, preservation of property, and overall public welfare. Current EPP evaluation procedures are qualitative in nature and while they do compare emergency drill performance with the EPP, the nature of the drills often does not provide enough realism to actual emergency conditions. Automated simulation of real emergency conditions using modern computer equipment and programming techniques will provide the NRC emergency evaluation teams a simulated environment which closely approximates conditions which would actually exist during a real emergency. In addition, the computer can be used to collect and log performance and event data which will aid the evaluation team in making assessments of the state or local area's EPP and their Emergency Preparedness Teams performance during emergency drills. Overall, a computerized EPSF can improve drill testing and evaluation efficiency, provide approximate emergency condition realism, and improve public awareness of local emergency procedures

USACDEC Experimentation Manual

Science.gov (United States)

1981-10-01

Commander, Instrumentation Command (Prov) who is responsible for the cinematic form of the films. The writing requirements for discrete sections of the...level of simulated realism required. Higher levels of simulated realism will require higher degrees of control to insure the test events occur as...experimentation, the "enemy" created to add realism . Aggressor forces may be represented by live troops In the field or by mechanical targets with or

A mini slug test method for determination of a local hydraulic conductivity of an unconfined sandy aquifer

DEFF Research Database (Denmark)

Hinsby, Klaus; Bjerg, Poul Løgstrup; Andersen, Lars J.

1992-01-01

distributed measurements of a local hydraulic conductivity at a tracer test site at Vejen, Denmark. The mini slug test results calculated by a modified Dax slug test analysing method, applying the elastic storativity in the Dax equations instead of the specific yield, are in good accordance with the results...

SOCIALIST REALISM IN LITERARY DEPICTIONS OF WAR (THE CASE OF CROATIAN PROSE NARRATIVE

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Maciej Czerwiński

2017-01-01

Full Text Available In this article paradigms of socialist realist poetics in prose narrative on World WarTwo are taken into consideration. Some key ideologemes of socialist realism and communist worldview are underlined, such as absence of ambiguity (unequivocalness, simplifi cations, consistent mimeticism (truthful and historically concrete representation of reality, class awareness, militancy and heroism in war. Alongside theoretical and official directives, formulated by dogmatic theoreticians of socijalist realist doctrine (like Jure Franičević-Pločar who based his understandings of literature on the Soviet principles, created by Zhdanov and Stalin, there are given analyses of some literary texts written by Josip Barković, Joža Horvat, Ivo Andrić i Mate Beretin. The author focuses on literary construction of characters – the prototype illegal partisans who ruthlessly struggle against the occupiers as well as chronotopic settings which enable for the action to be set within schematized confl ict of good and evil. Including the new communist man, that is created during the revolution, there are given crucial political orientations concerning the canonized vision of the war, such as the principle of symmetry (meaning that all peoples’ traitors are fascists and the vision of the liberation from fascism as the victory of the communist revolution (in this perspective, communists are depicted as the sole antifascists.

Initial validation of a virtual-reality learning environment for prostate biopsies: realism matters!

Science.gov (United States)

Fiard, Gaelle; Selmi, Sonia-Yuki; Promayon, Emmanuel; Vadcard, Lucile; Descotes, Jean-Luc; Troccaz, Jocelyne

2014-04-01

A virtual-reality learning environment dedicated to prostate biopsies was designed to overcome the limitations of current classical teaching methods. The aim of this study was to validate reliability, face, content, and construct of the simulator. The simulator is composed of (a) a laptop computer, (b) a haptic device with a stylus that mimics the ultrasound probe, (c) a clinical case database including three-dimensional (3D) ultrasound volumes and patient data, and (d) a learning environment with a set of progressive exercises including a randomized 12-core biopsy procedure. Both visual (3D biopsy mapping) and numerical (score) feedback are given to the user. The simulator evaluation was conducted in an academic urology department on 7 experts and 14 novices who each performed a virtual biopsy procedure and completed a face and content validity questionnaire. The overall realism of the biopsy procedure was rated at a median of 9/10 by nonexperts (7.1-9.8). Experts rated the usefulness of the simulator for the initial training of urologists at 8.2/10 (7.9-8.3), but reported the range of motion and force feedback as significantly less realistic than novices (P=0.01 and 0.03, respectively). Pearson r correlation coefficient between correctly placed biopsies on the right and left side of the prostate for each user was 0.79 (Prealism and scoring system used.

An assessment of the realism of digital human manikins used for simulation in ergonomics.

Science.gov (United States)

Nérot, Agathe; Skalli, Wafa; Wang, Xuguang

2015-01-01

In this study, the accuracy of the joint centres of the manikins generated by RAMSIS and Human Builder (HB), two digital human modelling (DHM) systems widely used in industry for virtual ergonomics simulation, was investigated. Eighteen variously sized females and males were generated from external anthropometric dimensions and six joint centres (knee, hip and four spine joints) were compared with their anatomic locations obtained from the three-dimensional reconstructed bones from a low-dose X-ray system. Both RAMSIS and HB could correctly reproduce external anthropometric dimensions, while the estimation of internal joint centres location presented an average error of 27.6 mm for HB and 38.3 mm for RAMSIS. Differences between both manikins showed that a more realistic kinematic linkage led to better accuracy in joint location. This study opens the way to further research on the relationship between the external body geometry and internal skeleton in order to improve the realism of the internal skeleton of DHMs, especially for a biomechanical analysis requiring information of joint load and muscle force estimation. This study assessed two digital human modelling (DHM) systems widely used in industry for virtual ergonomics. Results support the need of a more realistic human modelling, especially for a biomechanical analysis and a standardisation of DHMs.

Central implementation strategies outperform local ones in improving HIV testing in Veterans Healthcare Administration facilities.

Science.gov (United States)

Goetz, Matthew Bidwell; Hoang, Tuyen; Knapp, Herschel; Burgess, Jane; Fletcher, Michael D; Gifford, Allen L; Asch, Steven M

2013-10-01

Pilot data suggest that a multifaceted approach may increase HIV testing rates, but the scalability of this approach and the level of support needed for successful implementation remain unknown. To evaluate the effectiveness of a scaled-up multi-component intervention in increasing the rate of risk-based and routine HIV diagnostic testing in primary care clinics and the impact of differing levels of program support. Three arm, quasi-experimental implementation research study. Veterans Health Administration (VHA) facilities. Persons receiving primary care between June 2009 and September 2011 INTERVENTION: A multimodal program, including a real-time electronic clinical reminder to facilitate HIV testing, provider feedback reports and provider education, was implemented in Central and Local Arm Sites; sites in the Central Arm also received ongoing programmatic support. Control Arm sites had no intervention Frequency of performing HIV testing during the 6 months before and after implementation of a risk-based clinical reminder (phase I) or routine clinical reminder (phase II). The adjusted rate of risk-based testing increased by 0.4 %, 5.6 % and 10.1 % in the Control, Local and Central Arms, respectively (all comparisons, p education and social marketing significantly increased the frequency at which HIV testing is offered and performed in VHA facilities. These findings support a multimodal approach toward achieving the goal of having every American know their HIV status as a matter of routine clinical practice.

Removal factor determination of some local smear papers for surface contamination smear test

International Nuclear Information System (INIS)

Suratman; Indriyotomo, D.; Aminjoyo, S.

1996-01-01

Removal factor determination of some local smear papers has been done, using dry smear test method. The aim of this research is to find removal values of local smear papers on some surfaces, to replace import smear papers. Smear test was done on the various surfaces i.e.: porcelain, formica, glass, stainless steel, steel and PVC, with the local smear papers I.e.: Padalarang, Diagonal, Concorde, Marga, Hard Cloth, and import smear paper. The artificial contaminant which used were I-131 and P-32. The removal factor values of Padalarang paper for surfaces: porcelain, formica, glass stainless steel, steel and PVC were: 24.5%, 20.0%, 27.0%, 6.8%, 4.9%, and 13.6% respectively. The removal factor values of Diagonal paper were:18.4%, 15.9%, 5.7%, 3.5%, and 9.1% respectively. The removal factor values of concord paper were: 18.5%, 20.3%, 23.1%, 6.6%, 3.8%, and 9.0% respectively. The removal factor values of Marga paper were: 16.7%, 13.5%, 21.1%, 4.2%, 4.1% and 8.1% respectively. The removal factor values of Hard Cloth were: 18.6%, 12.6%, 20.5%, 8.2%, and 10.1% respectively. The removal factor values of import smear paper were: 17.8%, 15.0%, 18.8%, 9.1%, 4.8%, and 14.4% respectively . Substitution alternative of import smear paper is Padalarang. (author)

Local tests of gravitation with Gaia observations of Solar System Objects

Science.gov (United States)

Hees, Aurélien; Le Poncin-Lafitte, Christophe; Hestroffer, Daniel; David, Pedro

2018-04-01

In this proceeding, we show how observations of Solar System Objects with Gaia can be used to test General Relativity and to constrain modified gravitational theories. The high number of Solar System objects observed and the variety of their orbital parameters associated with the impressive astrometric accuracy will allow us to perform local tests of General Relativity. In this communication, we present a preliminary sensitivity study of the Gaia observations on dynamical parameters such as the Sun quadrupolar moment and on various extensions to general relativity such as the parametrized post-Newtonian parameters, the fifth force formalism and a violation of Lorentz symmetry parametrized by the Standard-Model extension framework. We take into account the time sequences and the geometry of the observations that are particular to Gaia for its nominal mission (5 years) and for an extended mission (10 years).

Local defect resonance for sensitive non-destructive testing

Science.gov (United States)

Adebahr, W.; Solodov, I.; Rahammer, M.; Gulnizkij, N.; Kreutzbruck, M.

2016-02-01

Ultrasonic wave-defect interaction is a background of ultrasound activated techniques for imaging and non-destructive testing (NDT) of materials and industrial components. The interaction, primarily, results in acoustic response of a defect which provides attenuation and scattering of ultrasound used as an indicator of defects in conventional ultrasonic NDT. The derivative ultrasonic-induced effects include e.g. nonlinear, thermal, acousto-optic, etc. responses also applied for NDT and defect imaging. These secondary effects are normally relatively inefficient so that the corresponding NDT techniques require an elevated acoustic power and stand out from conventional ultrasonic NDT counterparts for their specific instrumentation particularly adapted to high-power ultrasonic. In this paper, a consistent way to enhance ultrasonic, optical and thermal defect responses and thus to reduce an ultrasonic power required is suggested by using selective ultrasonic activation of defects based on the concept of local defect resonance (LDR). A strong increase in vibration amplitude at LDR enables to reliably detect and visualize the defect as soon as the driving ultrasonic frequency is matched to the LDR frequency. This also provides a high frequency selectivity of the LDR-based imaging, i.e. an opportunity of detecting a certain defect among a multitude of other defects in material. Some examples are shown how to use LDR in non-destructive testing techniques, like vibrometry, ultrasonic thermography and shearography in order to enhance the sensitivity of defect visualization.

Polymorphe Männerkörper in Bohumil Hrabals Werk Obsluhoval jsem anglického krále als Gegenentwurf zum Sozialistischen Realismus // The Polymorph Male Body in Bohumil Hrabal’s I Served the King of England as a Counter-Concept to Socialist Realism

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Ina Hartmann

2015-12-01

Full Text Available The essay inquires into the literary presentation of the male body of selected protagonists of Bohumil Hrabalʼs Obsluhoval jsem anglického krále (I Served the King of England. Concentrating on the cultural-political situation especially at the time of the genesis of the novel and on the postulates of Socialist Realism regarding the male body, the analysis illustrates how the literary constructed male body of Hrabal works as a counter-concept to the aesthetics of Socialist Realism. Measured against the normally healthy and normalised male body in Socialist-Realist art, the bodies of Hrabalʼs male protagonists appear not merely deficient and grotesque but rather polymorphous. The immoral behaviour, erotic gestures and physical ineligibility of Hrabalʼs figures reduces the model of the hero of Socialist work effort to an absurdity.

A realistic approach of the quantum non-locality and their experimental consequences

International Nuclear Information System (INIS)

Ryff, Luiz Carlos Bandeira.

1992-01-01

A realistic approach to quantum nonlocality is proposed, and four experiments that can be used to test this approach, using pairs of correlated photons are discussed. The first experiment proposed would allow us to investigate the role of the interaction of a quantum system with a macroscopic apparatus (detector) in the so-called collapse of the state vector. The second would investigate the interaction with a polarizer. Following the line of the second, the third experiment raises questions concerning the partial collapse of the state vector. The fourth suggests ways of investigating some possible properties of the superluminal interaction needed to explain nonlocality according to realism. The extension of this approach to include pairs of photons produced via parametric down-conversion of light is discussed. (author). 57 refs, 19 figs

Modernist Realism and its Enemies: John Coetzee and Philosophy

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Ana Falcato

2015-07-01

Full Text Available Dispassionate and sober, J. M. Coetzee’s prose is a space in which literary identities are continually unsettled, methodological subtleties both revealed and explored. Given these features, philosophers have described Coetzee’s style as “modernist realist”. In this paper, I discuss the relevance of Coetzee’s use of the split page in Diary of a Bad Year, focusing on its role in undermining “ersatz ethical thought”. In the second part of the paper, I develop a model for explaining Coetzee’s modernist realism. This model is situated within a broader, self-critical project that traces the significance of my analysis for the form of philosophical discourse.Desapasionada y sobria, la prosa de J. M. Coetzee es un espacio en que las identidades literarias se muestran constantemente inestables y las sutilezas metodológicas se revelan y exploran. Partiendo de estas características, los filósofos han descrito el estilo de Coetzee como “realista modernista”. En este artículo discuto la relevancia del uso que hace Coetzee de la página dividida en Diary of a Bad Year, prestando especial atención a cómo sirve para debilitar el “ersatz ethical thought”. En la segunda parte del artículo desarrollo un modelo para explicar el realismo modernista de Coetzee. Este modelo se emplaza en mi amplio proyecto crítico de análisis del significado de la forma en el discurso filosófico.Sobria e spassionata, la prosa di J. M. Coetzee è uno spazio nel quale le identità letterarie si mostrano costantemente instabili e le sottigliezze metodologiche sono rivelate ed esplorate. Partendo da queste caratteristiche, i filosofi hanno descritto lo stile di Coetzee come "realista modernista". In questo articolo discuto la rilevanza dell'uso che Coetzee fa della pagina divisa in Diary of a Bad Year, prestando particolare attenzione a come essa serve a debilitare l'ersatz ethical thought. Nella seconda parte dell'articolo, poi, delineo un modello per

Two-setting Bell inequalities for graph states

International Nuclear Information System (INIS)

Toth, Geza; Guehne, Otfried; Briegel, Hans J.

2006-01-01

We present Bell inequalities for graph states with a high violation of local realism. In particular, we show that there is a basic Bell inequality for every nontrivial graph state which is violated by the state at least by a factor of 2. This inequality needs the measurement of, at most, two operators for each qubit and involves only some of the qubits. We also show that for some families of graph states composite Bell inequalities can be constructed such that the violation of local realism increases exponentially with the number of qubits. We prove that some of our inequalities are facets of the convex polytope containing the many-body correlations consistent with local hidden variable models. Our Bell inequalities are built from stabilizing operators of graph states

Better Bell-inequality violation by collective measurements

International Nuclear Information System (INIS)

Liang, Y.-C.; Doherty, Andrew C.

2006-01-01

The standard Bell-inequality experiments test for violation of local realism by repeatedly making local measurements on individual copies of an entangled quantum state. Here we investigate the possibility of increasing the violation of a Bell inequality by making collective measurements. We show that the nonlocality of bipartite pure entangled states, quantified by their maximal violation of the Bell-Clauser-Horne inequality, can always be enhanced by collective measurements, even without communication between the parties. For mixed states we also show that collective measurements can increase the violation of Bell inequalities, although numerical evidence suggests that the phenomenon is not common as it is for pure states

The statistical strength of nonlocality proofs

NARCIS (Netherlands)

Dam, van W.; Gill, R.D.; Grünwald, P.D.

2005-01-01

There exist numerous proofs of Bell's theorem, stating that quantum mechanics is incompatible with local realistic theories of nature. Here the strength of such nonlocality proofs is defined in terms of the amount of evidence against local realism provided by the corresponding experiments.

Strong violations of locality by testing Bell’s inequality with improved entangled-photon systems

International Nuclear Information System (INIS)

Wang Yao; Fan Dai-He; Guo Wei-Jie; Wei Lian-Fu

2015-01-01

Bell’s theorem states that quantum mechanics cannot be accounted for by any local theory. One of the examples is the existence of quantum non-locality is essentially violated by the local Bell’s inequality. Therefore, the violation of Bell’s inequality (BI) has been regarded as one of the robust evidences of quantum mechanics. Until now, BI has been tested by many experiments, but the maximal violation (i.e., Cirel’son limit) has never been achieved. By improving the design of entangled sources and optimizing the measurement settings, in this work we report the stronger violations of the Clauser–Horne–Shimony–Holt (CHSH)-type Bell’s inequality. The biggest value of Bell’s function in our experiment reaches to a significant one: S = 2.772± 0.063, approaching to the so-called Cirel’son limit in which the Bell function value is . Further improvement is possible by optimizing the entangled-photon sources. (paper)

Can a virtual supermarket bring realism into the lab? Comparing shopping behavior using virtual and pictorial store representations to behavior in a physical store.

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van Herpen, Erica; van den Broek, Eva; van Trijp, Hans C M; Yu, Tian

2016-12-01

Immersive virtual reality techniques present new opportunities for research into consumer behavior. The current study examines whether the increased realism of a virtual store compared to pictorial (2D) stimuli elicits consumer behavior that is more in line with behavior in a physical store. We examine the number, variety, and type of products selected, amount of money spent, and responses to price promotions and shelf display, in three product categories (fruit & vegetables, milk, and biscuits). We find that virtual reality elicits behavior that is more similar to behavior in the physical store compared to the picture condition for the number of products selected (Milk: M store  = 1.19, M virtual  = 1.53, M pictures  = 2.58) and amount of money spent (Milk: M store  = 1.27, M virtual  = 1.53, M pictures  = 2.60 Euro), and for the selection of products from different areas of the shelf, both vertically (purchases from top shelves, milk and biscuits: P store  = 21.6%, P virtual  = 33.4%, P pictures  = 50.0%) and horizontally (purchase from left shelf, biscuits: P store  = 35.5%, P virtual  = 53.3%, P pictures  = 66.7%). This indicates that virtual reality can improve realism in responses to shelf allocation. Virtual reality was not able to diminish other differences between lab and physical store: participants bought more products and spent more money (for biscuits and fruit & vegetables), bought more national brands, and responded more strongly to price promotions in both virtual reality and pictorial representations than in the physical store. Implications for the use of virtual reality in studies of consumer food choice behavior as well as for future improvement of virtual reality techniques are discussed. Copyright © 2016 Elsevier Ltd. All rights reserved.

The preface by João Cabral de Melo Neto to Em Va Fer Joan Brossa: Theory and practice of realism in two poets from the post-war.

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Melcion Mateu

2009-12-01

Full Text Available In 1951, the book Em va fer Joan Brossa [Joan Brossa  Made me] was published in Barcelona, with a preface by João Cabral de Melo Neto. It is a useful text to better understand Brossa as well as Cabral; it is a significant text in order to grasp the individual response of these poets to the problem of returning to realism for the early post-war period. A translation of João Cabral de Melo Neto's preface, previously unpublished in Portuguese, is presented here.

The effect of different levels of realism of context learning on the prescribing competencies of medical students during the clinical clerkship in internal medicine: an exploratory study.

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Tichelaar, Jelle; van Kan, Coen; van Unen, Robert J; Schneider, Anton J; van Agtmael, Michiel A; de Vries, Theo P G M; Richir, Milan C

2015-02-01

The aim of this study is to evaluate the effect of different levels of realism of context learning on the prescribing competencies of medical students during the clinical clerkship in internal medicine. Between 2001 and 2007, 164 medical students took part in the prospective explorative study during their clinical clerkship in internal medicine at the VU University Medical Center, Amsterdam, The Netherlands. In a fixed order, each student had to formulate a treatment plan for a real patient in three situations of increasing realism: a minimal level (studying a patient record), medium level (preparing for a therapeutic consultation), and optimal level (preparing for and performing a therapeutic consultation with the patient). In comparison to studying a patient record (minimal context level), preparing a therapeutic consultation (medium context) improved four of the six steps of the WHO six-step plan. Preparing and performing a therapeutic consultation with a real patient (optimal context) further improved three essential prescribing competencies, namely checking for contraindications and interactions, prescription writing, and instructions to the patient. The results of this first explorative study suggest that enrichment of the learning context (responsibility for patient care) might be an important factor to improve the training of rational prescribing skills of medical students during their clinical clerkship in internal medicine. Clinical (pharmacology) teachers should be aware that seemingly small adaptations in the learning context of prescribing training during clinical clerkships (i.e., with or without involvement with and responsibility for patient care) may have relatively large impact on the development of prescribing competencies of our future doctors.

Testing Local Adaptation in a Natural Great Tit-Malaria System: An Experimental Approach.

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Tania Jenkins

Full Text Available Finding out whether Plasmodium spp. are coevolving with their vertebrate hosts is of both theoretical and applied interest and can influence our understanding of the effects and dynamics of malaria infection. In this study, we tested for local adaptation as a signature of coevolution between malaria blood parasites, Plasmodium spp. and its host, the great tit, Parus major. We conducted a reciprocal transplant experiment of birds in the field, where we exposed birds from two populations to Plasmodium parasites. This experimental set-up also provided a unique opportunity to study the natural history of malaria infection in the wild and to assess the effects of primary malaria infection on juvenile birds. We present three main findings: i there was no support for local adaptation; ii there was a male-biased infection rate; iii infection occurred towards the end of the summer and differed between sites. There were also site-specific effects of malaria infection on the hosts. Taken together, we present one of the few experimental studies of parasite-host local adaptation in a natural malaria system, and our results shed light on the effects of avian malaria infection in the wild.

Engaging Local Stakeholders on Technical Issues: Test Case at the La Hague Reprocessing Plant - 59211

International Nuclear Information System (INIS)

Gilli, Ludivine

2012-01-01

In 2009 and 2010, the Institute for Nuclear Safety and Radiation Protection (IRSN) lead a pilot action dealing with the decommissioning of a workshop located on the site of Areva's La Hague fuel-reprocessing plant site in Northwestern France. The purpose of the pilot program was to test ways for IRSN and a few local stakeholders (Non-Governmental Organizations (NGOs) members, local elected officials, etc.) to engage in technical discussions. The discussions were intended to enable the local stakeholders to review the operator's decommissioning application and provide input. The pilot program confirmed there is a definite challenge in successfully opening a meaningful dialogue to discuss technical issues. Three factors influence the extent of the challenge: the knowledge gap between experts and local stakeholders, the conflict between transparency and confidentiality which is inherent with technical topics, and the difficulty for an official expertise institute to hold a dialogue with 'outsiders' during an ongoing reviewing process in which it is participating. The pilot program, given its mixed results, also provided valuable lessons for further improvement of stakeholders' involvement. (authors)

Leggett-Garg tests of macrorealism for bosonic systems including double-well Bose-Einstein condensates and atom interferometers

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Rosales-Zárate, L.; Opanchuk, B.; He, Q. Y.; Reid, M. D.

2018-04-01

We construct quantifiable generalizations of Leggett-Garg tests for macro- and mesoscopic realism and noninvasive measurability that apply when not all outcomes of measurement can be identified as arising from one of two macroscopically distinguishable states. We show how quantum mechanics predicts a negation of the Leggett-Garg premises for strategies involving ideal negative-result, weak, and minimally invasive ("nonclumsy") projective measurements on dynamical entangled systems, as might be realized with Bose-Einstein condensates in a double-well potential, path-entangled NOON states, and atom interferometers. Potential loopholes associated with each strategy are discussed.

Realism without truth: a review of Giere's science without laws and scientific perspectivism.

Science.gov (United States)

Hackenberg, Timothy D

2009-05-01

An increasingly popular view among philosophers of science is that of science as action-as the collective activity of scientists working in socially-coordinated communities. Scientists are seen not as dispassionate pursuers of Truth, but as active participants in a social enterprise, and science is viewed on a continuum with other human activities. When taken to an extreme, the science-as-social-process view can be taken to imply that science is no different from any other human activity, and therefore can make no privileged claims about its knowledge of the world. Such extreme views are normally contrasted with equally extreme views of classical science, as uncovering Universal Truth. In Science Without Laws and Scientific Perspectivism, Giere outlines an approach to understanding science that finds a middle ground between these extremes. He acknowledges that science occurs in a social and historical context, and that scientific models are constructions designed and created to serve human ends. At the same time, however, scientific models correspond to parts of the world in ways that can legitimately be termed objective. Giere's position, perspectival realism, shares important common ground with Skinner's writings on science, some of which are explored in this review. Perhaps most fundamentally, Giere shares with Skinner the view that science itself is amenable to scientific inquiry: scientific principles can and should be brought to bear on the process of science. The two approaches offer different but complementary perspectives on the nature of science, both of which are needed in a comprehensive understanding of science.

REALISM WITHOUT TRUTH: A REVIEW OF GIERE'S SCIENCE WITHOUT LAWS AND SCIENTIFIC PERSPECTIVISM

Science.gov (United States)

Hackenberg, Timothy D

2009-01-01

An increasingly popular view among philosophers of science is that of science as action—as the collective activity of scientists working in socially-coordinated communities. Scientists are seen not as dispassionate pursuers of Truth, but as active participants in a social enterprise, and science is viewed on a continuum with other human activities. When taken to an extreme, the science-as-social-process view can be taken to imply that science is no different from any other human activity, and therefore can make no privileged claims about its knowledge of the world. Such extreme views are normally contrasted with equally extreme views of classical science, as uncovering Universal Truth. In Science Without Laws and Scientific Perspectivism, Giere outlines an approach to understanding science that finds a middle ground between these extremes. He acknowledges that science occurs in a social and historical context, and that scientific models are constructions designed and created to serve human ends. At the same time, however, scientific models correspond to parts of the world in ways that can legitimately be termed objective. Giere's position, perspectival realism, shares important common ground with Skinner's writings on science, some of which are explored in this review. Perhaps most fundamentally, Giere shares with Skinner the view that science itself is amenable to scientific inquiry: scientific principles can and should be brought to bear on the process of science. The two approaches offer different but complementary perspectives on the nature of science, both of which are needed in a comprehensive understanding of science. PMID:19949495

Local confidence limits for IMRT and VMAT techniques: a study based on TG119 test suite

International Nuclear Information System (INIS)

Thomas, M.; Chandroth, M.

2014-01-01

The aim of this study was to generate a local confidence limit (CL) for intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) techniques used at Waikato Regional Cancer Centre. This work was carried out based on the American Association of Physicists in Medicine (AAPM) Task Group (TG) 119 report. The AAPM TG 119 report recommends CLs as a bench mark for IMRT commissioning and delivery based on its multiple institutions planning and dosimetry comparisons. In this study the locally obtained CLs were compared to TG119 benchmarks. Furthermore, the same bench mark was used to test the capabilities and quality of the VMAT technique in our clinic. The TG 119 test suite consists of two primary and four clinical tests for evaluating the accuracy of IMRT planning and dose delivery systems. Pre defined structure sets contoured on computed tomography images were downloaded from AAPM website and were transferred to a locally designed phantom. For each test case two plans were generated using IMRT and VMAT optimisation. Dose prescriptions and planning objectives recommended by TG119 report were followed to generate the test plans in Eclipse Treatment Planning System. For each plan the point dose measurements were done using an ion chamber at high dose and low dose regions. The planar dose distribution was analysed for percentage of points passing the gamma criteria of 3 %/3 mm, for both the composite plan and individual fields of each plan. The CLs were generated based on the results from the gamma analysis and point dose measurements. For IMRT plans, the CLs obtained were (1) from point dose measurements: 2.49 % at high dose region and 2.95 % for the low dose region (2) from gamma analysis: 2.12 % for individual fields and 5.9 % for the composite plan. For VMAT plans, the CLs obtained were (1) from point dose measurements: 2.56 % at high dose region and 2.6 % for the low dose region (2) from gamma analysis: 1.46 % for individual fields and 0

Forest, Trees, Dynamics: Results from a novel Wisconsin Card Sorting Test variant Protocol for Studying Global-Local Attention and Complex Cognitive Processes

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Benjamin eCowley

2016-02-01

Full Text Available BackgroundRecognition of objects and their context relies heavily on the integrated functioning of global and local visual processing. In a realistic setting such as work, this processing becomes a sustained activity, implying a consequent interaction with executive functions.MotivationThere have been many studies of either global-local attention or executive functions; however it is relatively novel to combine these processes to study a more ecological form of attention. We aim to explore the phenomenon of global-local processing during a task requiring sustained attention and working memory.MethodsWe develop and test a novel protocol for global-local dissociation, with task structure including phases of divided ('rule search' and selective ('rule found' attention, based on the Wisconsin Card Sorting Task.We test it in a laboratory study with 25 participants, and report on behaviour measures (physiological data was also gathered, but not reported here. We develop novel stimuli with more naturalistic levels of information and noise, based primarily on face photographs, with consequently more ecological validity.ResultsWe report behavioural results indicating that sustained difficulty when participants test their hypotheses impacts matching-task performance, and diminishes the global precedence effect. Results also show a dissociation between subjectively experienced difficulty and objective dimension of performance, and establish the internal validity of the protocol.ContributionWe contribute an advance in the state of the art for testing global-local attention processes in concert with complex cognition. With three results we establish a connection between global-local dissociation and aspects of complex cognition. Our protocol also improves ecological validity and opens options for testing additional interactions in future work.

Processing of ambiguous and unambiguous feedback by depressed and nondepressed college students: schematic biases and their implications for depressive realism.

Science.gov (United States)

Dykman, B M; Abramson, L Y; Alloy, L B; Hartlage, S

1989-03-01

Explored schematic processing as a mechanism for predicting (a) when depressed Ss would be negative relative to nondepressed Ss and (b) when depressed and nondepressed Ss would show biased or unbiased (i.e., "realistic") processing. Depressed and nondepressed Ss performed multiple trials of a task under conditions in which the two groups held either equivalent or different schemas regarding this task. Ss received either an unambiguous or objectively normed ambiguous feedback cue on each trial. In full support of schematic processing, depressed Ss showed negative encoding relative to nondepressed Ss only when their schemas were more negative, and both depressed and nondepressed Ss showed positively biased, negatively biased, and unbiased encoding depending on the relative feedback cue-to-schema match. Depressed and nondepressed Ss' response latencies to unambiguous feedback also supported the occurrence of schematic processing. We discuss the methodological, treatment, and "realism" implications of these findings and suggest a more precise formulation of Beck's schema theory of depression.

Realism in the Realized Popper's Experiment

Science.gov (United States)

Hunter, Geoffrey

2002-12-01

The realization of Karl Popper's EPR-like experiment by Shih and Kim (published 1999) produced the result that Popper hoped for: no ``action at a distance'' on one photon of an entangled pair when a measurement is made on the other photon. This experimental result is interpretable in local realistic terms: each photon has a definite position and transverse momentum most of the time; the position measurement on one photon (localization within a slit) disturbs the transverse momentum of that photon in a non-predictable way in accordance with the uncertainty principle; however, there is no effect on the other photon (the photon that is not in a slit) no action at a distance. The position measurement (localization within a slit) of the one photon destroys the coherence (entanglement) between the photons; i.e. decoherence occurs. This realistic (albeit retrodictive) interpretation of the Shih-Kim realization of what Popper called his ``crucial experiment'' is in accord with Bohr's original concept of the nature of the uncertainty principle, as being an inevitable effect of the disturbance of the measured system by the measuring apparatus. In this experiment the impact parameter of an incident photon with the centerline of the slit is an uncontrollable parameter of each individual photon scattering event; this impact parameter is variable for every incident photon, the variations being a statistical aspect of the beam of photons produced by the experimental arrangement. These experimental results are also in accord with the proposition of Einstein, Podolski and Rosen's 1935 paper: that quantum mechanics provides only a statistical, physically incomplete, theory of microscopic physical processes, for the quantum mechanical description of the experiment does not describe or explain the individual photon scattering events that are actually observed; the angle by which an individual photon is scattered is not predictable, because the photon's impact parameter with the

Recalibrating disease parameters for increasing realism in modeling epidemics in closed settings

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Livio Bioglio

2016-11-01

realism of agent-based simulations and limit the intrinsic biases of the homogeneous mixing.

Recalibrating disease parameters for increasing realism in modeling epidemics in closed settings.

Science.gov (United States)

Bioglio, Livio; Génois, Mathieu; Vestergaard, Christian L; Poletto, Chiara; Barrat, Alain; Colizza, Vittoria

2016-11-14

The homogeneous mixing assumption is widely adopted in epidemic modelling for its parsimony and represents the building block of more complex approaches, including very detailed agent-based models. The latter assume homogeneous mixing within schools, workplaces and households, mostly for the lack of detailed information on human contact behaviour within these settings. The recent data availability on high-resolution face-to-face interactions makes it now possible to assess the goodness of this simplified scheme in reproducing relevant aspects of the infection dynamics. We consider empirical contact networks gathered in different contexts, as well as synthetic data obtained through realistic models of contacts in structured populations. We perform stochastic spreading simulations on these contact networks and in populations of the same size under a homogeneous mixing hypothesis. We adjust the epidemiological parameters of the latter in order to fit the prevalence curve of the contact epidemic model. We quantify the agreement by comparing epidemic peak times, peak values, and epidemic sizes. Good approximations of the peak times and peak values are obtained with the homogeneous mixing approach, with a median relative difference smaller than 20 % in all cases investigated. Accuracy in reproducing the peak time depends on the setting under study, while for the peak value it is independent of the setting. Recalibration is found to be linear in the epidemic parameters used in the contact data simulations, showing changes across empirical settings but robustness across groups and population sizes. An adequate rescaling of the epidemiological parameters can yield a good agreement between the epidemic curves obtained with a real contact network and a homogeneous mixing approach in a population of the same size. The use of such recalibrated homogeneous mixing approximations would enhance the accuracy and realism of agent-based simulations and limit the intrinsic biases of

Local lymph node assay: how testing laboratories apply OECD TG 429 for REACH purposes.

Science.gov (United States)

Rovida, Costanza

2011-01-01

The Local Lymph Node Assay (LLNA) is the official method for assessing the allergic contact dermatitis potential of chemicals for the purposes of REACH regulation. The LLNA went through a validation process that allowed the delineation of a robust protocol for performing new tests. The OECD accepted this method in 2002 and published OECD TG 429. The European Chemical Agency (ECHA) recently published data that were submitted in the registration dossiers of chemicals. This database was analysed to determine how testing laboratories apply OECD TG 429. This analysis comes after a detailed analysis of four full study reports that were also prepared for REACH purposes. Although the majority of the tests are fully compliant with OECD TG 429, some showed major deviations, and a number of others used more animals than necessary. This suggests that in vivo tests need to be planned more carefully and consciously to obtain meaningful results with the minimum animal number necessary.

Holism and structuralism in U(1) gauge theory

Science.gov (United States)

Lyre, Holger

After decades of neglect philosophers of physics have discovered gauge theories-arguably the paradigm of modern field physics-as a genuine topic for foundational and philosophical research. Incidentally, in the last couple of years interest from the philosophy of physics in structural realism-in the eyes of its proponents the best suited realist position towards modern physics-has also raised. This paper tries to connect both topics and aims to show that structural realism gains further credence from an ontological analysis of gauge theories-in particular U (1) gauge theory. In the first part of the paper the framework of fiber bundle gauge theories is briefly presented and the interpretation of local gauge symmetry will be examined. In the second part, an ontological underdetermination of gauge theories is carved out by considering the various kinds of non-locality involved in such typical effects as the Aharonov-Bohm effect. The analysis shows that the peculiar form of non-separability figuring in gauge theories is a variant of spatiotemporal holism and can be distinguished from quantum theoretic holism. In the last part of the paper the arguments for a gauge theoretic support of structural realism are laid out and discussed.

Local hypothesis testing between a pure bipartite state and the white noise state

OpenAIRE

Owari, Masaki; Hayashi, Masahito

2010-01-01

In this paper, we treat a local discrimination problem in the framework of asymmetric hypothesis testing. We choose a known bipartite pure state $\\ket{\\Psi}$ as an alternative hypothesis, and the completely mixed state as a null hypothesis. As a result, we analytically derive an optimal type 2 error and an optimal POVM for one-way LOCC POVM and Separable POVM. For two-way LOCC POVM, we study a family of simple three-step LOCC protocols, and show that the best protocol in this family has stric...

Temperatures, strains and crack behavior during local thermal shock tests on the RPV-cylinder of the HDR

International Nuclear Information System (INIS)

Neubrech, G.E.; Goerner, F.; Siebler, T.

1987-01-01

This report summarises and critically discusses the results obtained from thermal shocks locally applied to the inner surface of the RPV-cylinder. This evaluation is based on on-line measurements (temperatures and strains at the RPV-wall during the thermal shock loading, non-destructive-testing), on materials investigations, and on theoretical investigations (finite element calculations, fracture mechanics analyses). The comparison between the corresponding measured and calculated results serves as a basis for subsequent assessments. It was the object of these tests to achieve the following primary aims: - Investigation of the loading conditions produced by local thermal shocks during realistic cooling processes. - A better understanding of the physical processes involved in crack initiation and propagation resulting from thermocyclic loading. - Assessment of non-destructive-testing methods with respect to detection and analysis of cracks as a basis for fracture mechanical evaluations. - Assessment of the reliability of the applied structural analysis methods. - Production of naturally formed deep cracks on the inner surface of the RPV-cylinder by means of excessive cooling processes. (orig./HP)

Kochen-Specker theorem as a precondition for secure quantum key distribution

International Nuclear Information System (INIS)

Nagata, Koji

2005-01-01

We show that (1) the violation of the Ekert 1991 inequality is a sufficient condition for certification of the Kochen-Specker (KS) theorem, and (2) the violation of the Bennett-Brassard-Mermin 1992 (BBM92) inequality is, also, a sufficient condition for certification of the KS theorem. Therefore the success in each quantum key distribution protocol reveals the nonclassical feature of quantum theory, in the sense that the KS realism is violated. Further, it turned out that the Ekert inequality and the BBM inequality are depictured by distillable entanglement witness inequalities. Here, we connect the success in these two key distribution processes into the no-hidden-variables theorem and into witness on distillable entanglement. We also discuss the explicit difference between the KS realism and Bell's local realism in the Hilbert space formalism of quantum theory

Quantum optical predictions in Q representation for Bell's type experiments

International Nuclear Information System (INIS)

Ferrero, M.; Marshall, T.W.

1991-01-01

Using the Q representation, the authors study the disagreement between quantum optical formalism and local realism and they show that the phenomenon of enhancement, first revealed by the local realist analysis, could receive a simple explanation if they use this particular version of the quantum formalism. Nevertheless, some fundamental difficulties remain