Results for 'Wheeler-De Witt equation'

939 found
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  1.  71
    Quantum Analysis of $$k=-1$$ k = - 1 Robertson–Walker Universe.Ciprian Dariescu & Marina-Aura Dariescu - 2015 - Foundations of Physics 45 (11):1495-1513.
    The \\)-Robertson–Walker spacetime is under investigation. With the derived Hamilton operator, we are solving the Wheeler–De Witt Equation and its Schrödinger-like extension, for physically important forms of the effective potential. The closed form solutions, expressed in terms of Heun’s functions, allow us to comment on the occurrence of Universe from highly probable quantum states.
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  2. On the concept of time and the origin of the cosmological temperature.R. Brout - 1987 - Foundations of Physics 17 (6):603-619.
    Time arises in the theory of gravity through the semiclassical approximation of the gravitational part of the solution of the Wheeler-De Witt equation in the manner shown by Banks (SCAG). We generalize Banks' procedure by grafting a Born-Oppenheimer type approximation onto SCAG. This allows for the feedback of matter onto gravity, wherein the latter is driven by the (quantum) mean energy-momentum tensor of matter. The wave function is nonvanishing in classically forbidden configurations of gravity. In SCAG this (...)
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  3.  90
    Time in Quantum Physics: From an External Parameter to an Intrinsic Observable. [REVIEW]Romeo Brunetti, Klaus Fredenhagen & Marc Hoge - 2010 - Foundations of Physics 40 (9-10):1368-1378.
    In the Schrödinger equation, time plays a special role as an external parameter. We show that in an enlarged system where the time variable denotes an additional degree of freedom, solutions of the Schrödinger equation give rise to weights on the enlarged algebra of observables. States in the associated GNS representation correspond to states on the original algebra composed with a completely positive unit preserving map. Application of this map to the functions of the time operator on the (...)
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  4. De junctie van de taal in het denken.A. J. J. de Witte - 1970 - Tijdschrift Voor Filosofie 32 (4):805-806.
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  5.  9
    The Analysis of Art.De Witt H. Parker & N. Metropolitan Museum of Art York - 1926 - Yale University Press H. Milford, Oxford University Press.
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  6. (1 other version)Extreem-rechts militantisme in Vlaanderen: uiting van racisme of nationalisme?Hans De Witte - 2006 - Res Publica: Tijdschrift Voor Politologie 4:421.
     
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  7.  11
    The Relations of Symbolic Logic and Comparative Linguistics.A. J. J. De Witte - 1953 - Proceedings of the XIth International Congress of Philosophy 5:176-179.
  8.  7
    The self and nature.De Witt Henry Parker - 1917 - Cambridge: Harvard university press.
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  9. De betekeniswereld van het lichaam.Antonius J. J. de Witte - 1948 - Utrecht,: Uitgeverij Het Spectrum.
     
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  10. De organisatievorm van de Europese Unie.Bruno de Witte - forthcoming - Bijdragen.
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  11.  16
    Kroniek: Studiedag: De mens en zijn onrust.Pieter De Witte - 2005 - Tijdschrift Voor Filosofie 64:811-816.
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  12. The Nature of Art.De Witt H. Parker - 1939 - Revue Internationale de Philosophie 1 (4):684-702.
     
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  13.  99
    Worldviews and Their Significance for the Global Sustainable Development Debate.Annick Hedlund-de Witt - 2013 - Environmental Ethics 35 (2):133-162.
    Insight into worldviews is essential for approaches aiming to design and support sustainable pathways for society, both locally and globally. However, the nature of worldviews remains controversial, and it is still unclear how the concept can best be operationalized in the context of research and practice. One way may be by developing a framework for the understanding and operationalization worldviews by investigating various conceptualizations of the term in the history of philosophy. Worldviews can be understood as inescapable, overarching systems of (...)
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  14.  19
    Basic Categories and Attitudes of the Value Situation.De Witt Parker - 1960 - Review of Metaphysics 13 (4):555 - 596.
    Now one of the aims of this treatise is to show that values are an essential factor in reality, and how therefore their most general traits are reflections of the pervasive characters of all being, so far as known to us. We shall not neglect the fine, individual nuances of values, but equally we shall try to reveal how they lie embedded in a more inclusive matrix. It will be the special topic of this chapter to establish and describe this (...)
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  15. Experience and substance.De Witt H. Parker - 1941 - Ann Arbor,: The University of Michigan press.
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  16.  20
    The philosophy of value.De Witt H. Parker - 1957 - Ann Arbor,: University of Michigan Press.
    This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...)
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  17. The Self and Nature.De Witt H. Parker - 1919 - Revue Philosophique de la France Et de l'Etranger 87:489-494.
     
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  18. Analogik: Grundlagen einer Wissenschaft der Analogien.Hermann de Witt - 1974 - [Basel : Komm.: Wepf.
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  19. A right to explain A qualitative study on the receptiveness of Flemish workers to the extreme right.Yves De Weerdt–Hans De Witte - 2005 - Ethical Perspectives 12 (2):171-203.
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  20. (1 other version)Hoe zwart is Vlaanderen, uiterst rechtse denkbeelden in Vlaanderen, een exploratieve Studie'.H. De Witte, J. Billiet & P. Scheepers - 1994 - Res Publica (Misc) 1:85-102.
     
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  21. Modernisme =.Ben De Witte & Emma-Louise Silva (eds.) - 2021 - Gent, België: Academia Press.
     
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  22.  8
    The five great philosophies of life.William De Witt Hyde - 1911 - New York,: The Macmillan company.
    Reproduction of the original: The Five Great Philosophies of Life by William de Witt Hyde.
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  23. (1 other version)Studies in the Gospel According to Mark.Ernest De Witt Burton - 1905 - The Monist 15:478.
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  24. Is There a Third Kind of Knowledge?De Witt H. Parker - 1950 - Philosophical Review 59:221.
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  25.  12
    Reflections on the Crisis in Theory of Value. I. Mostly Critical.De Witt H. Parker - 1945 - Ethics 56 (3):193 - 207.
  26.  13
    The principles of aesthetics.De Witt H. Parker - 1946 - New York,: F. S. Crofts & Co..
    This book has been deemed as a classic and has stood the test of time. The book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations.
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  27.  16
    Cognitive outcome after awake surgery for left and right hemisphere tumours.De Witte Elke, Satoer Djaina, Visch-Brink Evy & Mariën Peter - 2015 - Frontiers in Psychology 6.
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  28.  27
    Organic and Non-Organic Language Disorders after Awake Brain Surgery.De Witte Elke, Robert Erik, Colle Henry & Mariën Peter - 2014 - Frontiers in Psychology 5.
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  29. The best man I know.William De Witt Hyde - 1917 - New York,: The Macmillan company.
     
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  30.  50
    World Hypotheses. A Study in Evidence. [REVIEW]De Witt H. Parker - 1942 - Journal of Philosophy 39 (19):527-530.
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  31.  23
    Climate change and the clash of worldviews: An exploration of how to move forward in a polarized debate.Annick de Witt - 2015 - Zygon 50 (4):906-921.
  32.  14
    Music Therapy Interventions for Stress Reduction in Adults With Mild Intellectual Disabilities: Perspectives From Clinical Practice.Martina de Witte, Esther Lindelauf, Xavier Moonen, Geert-Jan Stams & Susan van Hooren - 2020 - Frontiers in Psychology 11.
    Stress is increasingly being recognized as one of the main factors that is negatively affecting our health, and therefore there is a need to regulate daily stress and prevent long-term stress. This need seems particularly important for adults with mild intellectual disabilities who have been shown to have more difficulties coping with stress than adults without intellectual disabilities. Hence, the development of music therapy interventions for stress reduction, particularly within populations where needs may be greater, is becoming increasingly important. In (...)
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  33.  20
    Psychologische aspecten van gepersonaliseerde verkiezingen : Perceptie van de persoonlijkheid van de kandidaten en de invloed ervan op het stemgedrag.Hans De Witte & Leo Lagrou - 1984 - Res Publica 26 (5):615-644.
    This study investigates bath the relationship between evaluation of personality traits of party-leaders and party identification, and the evaluation of personality traits as a determinant of voting behaviour. One month before the Belgian national elections of November 81 201 voters evaluate personality traits of four welt known leaders of the main Flemish political parties.Factor analysis indicated three main dimensions in the evaluation of personality traits of politicians : reliability, expertness and self-control. The personality profiles of every party-leader were quite similar (...)
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  34.  22
    Werkloze jongeren : links, rechts of apathisch? : Een onderzoek naar de invloed van werkloosheid op de politieke en maatschappelijke opvattingen van jongeren.Hans De Witte - 1989 - Res Publica 31 (1):75-94.
    Our review of the literature shows that only a minority of youngsters shifts to a more extreme political position because of their experience with unemployment. Unemployment deepens the political apathy of the majority of the youngsters. Unemployment isolates youngsters, so they cannot develop any involvement in polities. The"learned-helplessness" experience of unemployment also contributes to their political apathy.In 1985, 536 employed and 220 unemployed were surveyed on their political, socio-economical and religious attitudes, and their voting behaviour. Because the majority of the (...)
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  35.  16
    The Five Great Philosophies of Life.Lane Cooper & William De Witt Hyde - 1912 - Philosophical Review 21 (6):707-707.
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  36.  16
    Does the organization of care processes affect outcomes in patients undergoing total joint replacement?Kris Vanhaecht, Johan Bellemans, Karel De Witte, Luwis Diya, Emmanuel Lesaffre & Walter Sermeus - 2010 - Journal of Evaluation in Clinical Practice 16 (1):121-128.
  37. From Epicurus to Christ a Study in the Principles of Personality.William De Witt Hyde - 1904 - Macmillan.
     
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  38.  6
    From Epicurus to Christ.William De Witt Hyde - 1904 - London,: The Macmillan company.
    The Epicurean pursuit of pleasure.--Stoic self-control by law.--The Platonic subordination of lower to higher.--The Aristotelian sense of proportion.--The Christian spirit of love.
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  39.  8
    Practical idealism.William De Witt Hyde - 1905 - London,: Macmillan & co..
    This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...)
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  40.  22
    Epicurus and his philosophy.Norman Wentworth De Witt - 1954 - Westport, Conn.,: Greenwood Press.
    _Epicurus and His Philosophy _ was first published in 1954. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions. In this volume, the first comprehensive book in English about Epicurus, existing data on the life of the ancient philosopher is related to the development of his doctrine. The result is a fascinating account that challenges traditional theories and interpretations of Epicurean philosophy. Professor DeWitt demonstrates (...)
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  41.  15
    On the 'Two Faces' of right-wing extremism in Belgium. Confronting the ideology of extreme right-wing parties in Belgium with the attitudes and motives of their voters.Hans De Witte - 1996 - Res Publica 38 (2):397-411.
    In this article, we analyse the ideological differences between extreme rightwing parties and their voters in the Flemish and Walloon part of Belgium. Extreme right-wing ideology consists of five core elements: racism, extreme ethnic nationalism, the leadership principle, anti-parliamentarianism and an anti-leftist attitude. All these attitudes refer to the basic value of rightwing extremism: the belief in the inequality of individuals and groups. An analysis of the ideology of the Vlaams Blok in Flanders shows that it adheres to these core (...)
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  42.  22
    Psycho-Linguistic Principles and Backgrounds of Misinterpretation.A. J. J. De Witte - 1959 - Synthese 11 (2):220-222.
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  43.  19
    Significs and Linguistics.A. J. J. de Witte - 1956 - Synthese 10:448-453.
  44.  16
    Towards a new grammar.A. J. J. de Witte - 1956 - Synthese 10:91.
  45.  6
    The Decision‐Making Process.Bruno de Witte - 2015 - In Dennis Patterson (ed.), A Companion to European Union Law and International Law. Wiley-Blackwell. pp. 95–108.
    This chapter first outlines the general evolution of the European Union's (EU) decision‐making regime. The pattern of EU decision making has traditionally varied across policy fields to a degree that is unknown in the national constitutional law of its member states, where laws and administrative rules are usually made according to fairly standard procedures covering all policy areas. Such policy‐related variation has been a constant feature throughout the history of European integration. The chapter then examines EU legislative decision making, and (...)
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  46.  19
    (1 other version)Transformation of Speech into Writing and Simplification.A. J. J. de Witte - 1953 - Synthese 9 (3/5):321.
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  47.  28
    The rôle of the Irrational in the Development of Phonetics.A. J. J. de Witte - 1956 - Synthese 10:385.
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  48.  11
    The Wait Goes On.Joke I. de Witte - 1989 - Hastings Center Report 19 (2):2-3.
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  49.  18
    Ways of interpretation. A didactic study.A. J. J. De Witte - 1956 - Synthese 10:229.
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  50.  13
    The new ethics.William De Witt Hyde - 1903 - New York,: T. Y. Crowell & co..
    This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...)
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