This paper offers a modified version of the certainty equivalence (CE) theory of utility for uncertain prospects and a new set of axioms as its basis. It shows that the CE and the von Neumann-Morgenstern (NM) approaches to uncertainty are opposite in spirit: The CE approach represents a flight from the world of uncertainty to the rules of certainty while the NM approach represents a flight from the world of certainty to one of uncertainty. The two approaches differ even in (...) their treatment of compound prospects and their actuarially identical simple counterparts. (shrink)

The book sets an ambitious goal. It devises a new account of scientific methodology that makes it possible to explain how scientists manage, at least occasionally, to find true models of reality. The new methods may be contrasted with all those currently available that employ “coherence theories” of knowledge. Under this designation are grouped positions that can seem very different (such as those of Poincaré, Duhem, Popper, Hempel, Quine, Kuhn, and Feyerabend) but are united by the idea that the most (...) general statements of science are merely hypotheses. They may be conjectures, opinions, conventions, posits, paradigms, or even myths. The most we can claim to know from such generalities is that they are internally consistent and coherent with empirical data. Consistency is insufficient to establish the truth of a conceptual system because many different systems, perhaps an infinite number, can be logically consistent and cohere with recorded data. Such is the well-known problem of the empirical under-determination of theories. Francis Bacon’s Skeptical Recipes for New Knowledge suggests a new methodology that solves this fundamental problem of knowledge. (shrink)

Estimation of Distribution Algorithms, which employ probabilistic models to generate the next population, are new promising methods in the field of genetic and evolutionary algorithms. In the case of conventional Genetic and Evolutionary Algorithms are applied to Constraint Satisfaction Problems, it is well-known that the incorporation of the domain knowledge in the Constraint Satisfaction Problems is quite effective. In this paper, we constitute a memetic algorithm as a combination of the Estimation of Distribution Algorithm and a repair method. Experimental results (...) on general Constraint Satisfaction Problems tell us the effectiveness of the proposed method. (shrink)

Comparative study of Indic philosophies from pre-Vedic times to the present day.

pt. 1. [without special title] -- pt. 2. The eternal world drama.

Development of the Physicist's Conception of Nature P. A. M. Dime When one looks back over the development of physics, one sees that it can be pictured as a ...

This chapter introduces values-based practice as a resource for working with individually diverse values in health and social care, and describes its origins in an on-going development through the resources of philosophy. The chapter is in two main sections. Section I, Values-Based Practice, builds on two brief interactive exercises to introduce and explain the key features of values-based practice. As a relatively recent addition to the range of resources for working with values in health and social care, values-based practice is (...) distinctive in focussing on the diversity of values comprising individual lived experience. Like evidence-based practice, values-based practice is a process-driven rather than an outcome-driven methodology. That is to say, rather than offering prescribed answers, both approaches offer processes that support decision-makers in coming to answers for themselves based on the particular circumstances presented by the situation in question. Although entirely complementary, the processes involved are of course different. Where evidence-based practice relies on meta-analyses of the results of high-quality clinical trials to inform a consensual model of decision-making, values-based practice builds on learnable clinical skills and other process elements to inform a dissensual model of decision-making rather than seeking to overcome value-conflicts in reaching consensus. Working within a premise of mutual respect for differences of values, and guided by three key principles linking values and evidence, values-based practice, as described in the chapter, supports dissensual decision-making, balanced according to the circumstances presented by the decision in question, within frameworks of locally-set frameworks of shared values. Section II, The Theory-Practice Dynamic, then outlines the theory-practice dynamic on which values-based practice is based. The origins of values-based practice in mid-twentieth century ordinary language philosophy of the Oxford School are outlined. As the chapter illustrates, although a limited area of analytic philosophy, many aspects of values-based practice are informed by ordinary language philosophy, ranging from its premise, through the training exercises and other process elements described in Section I, to its role in hybrid empirical studies supporting its model of service delivery. The development of values-based practice, furthermore, as section II goes on to describe, is ongoing, with key initiatives drawing not only on both analytic and Continental traditions of European philosophy, but also on non-European philosophies such as those of Africa and the Caribbean. (shrink)

Karl Popper and Thomas Kuhn were friends of science because they shared some values—the value of science for humanity, especially. My thesis is that their different accounts of science could not sa...

Purpose Along with their immense benefit, online channels of communication and information-sharing also present a myriad set of challenges. The unauthorized downloading and sharing of copyrighted content such as music and movies is one such issue. This study aims to examine the factors related to the unauthorized downloading of content amongst young internet users in an emerging market. Design/methodology/approach An online structured questionnaire was used to collect primary data from 219 internet users between 17 and 24 years of age. The (...) partial least squares structural equation modelling was used to analyse the primary data. Findings The study findings report that monetary savings and social influence are the main drivers underlying the propensity to engage in unauthorized downloading amongst young adults. Perceptions of harm caused to artists and producers appear to be a deterrent. Though the respondents perceive the quality of content downloaded from unauthorized sites to be less than desirable, and there is also a higher perceived threat from viruses, this does not appear to deter unauthorized downloading behaviour amongst this segment of consumers. Research limitations/implications Combating unauthorized downloading and other forms of questionable online behaviours is a challenge for multiple stakeholders. Consumption of unauthorized digital content is examined in the context of online consumers whose demographic profile is often associated with this category of questionable behaviour. The study adds to the extant understanding of the aetiology of what are often considered online unethical and illegal behaviours and makes both practical and theoretical contributions to the subject field. Originality/value The study examines an important aspect of rapidly evolving internet technologies. The internet provides a veil to individuals engaging in unethical online activities. Despite the existence of laws declaring these activities to be illegal, instances of copyright violations of music and movies abound. The insights regarding the drivers and deterrents of a form of online unauthorized activity are used to present a set of strategies aimed at addressing such behaviours. (shrink)

Several modern commentators of Dignaga have puzzled over the 5th century Buddhist philosopher1s theory of the triple condition of the inferential sign. Th. Stcherbatsky (1932), Richard Hayes (1988) and Bimal K. Matilal (1986) have wondered at the reasons for Dignaga’s insistence on the inclusion of the secondcondition, which seems to be the logical equivalent of the third condition. Do the three criteria together furnish patterns of valid inference which differ from those patterns furnished by criteria one and three alone? In (...) this paper, I detail three types of cases which underline the importance of the inclusion of the second criterion. (shrink)

Purpose The internet has provided a gamut of benefits to consumers. The digital world, however, also provides space for various illegal or unethical consumer activities. Consumers may not always be fully aware of the unethical or illegal nature of some of the online activities that they engage in. This study aims to examine the questionable side of online consumer behaviour in an emerging market where internet penetration and smart phone accessibility is rapidly expanding. Using a third-person technique, this study attempts (...) to empirically capture the perceptions of Indian adults regarding the prevalence of various questionable online activities such as unauthorized downloading of digital content, spreading fake news/misinformation and fraudulent returns and to understand the extent to which these respondents believe that such actions are acceptable or illegal and unethical. Design/methodology/approach An online questionnaire was used to collect primary data from 212 consumers. Non-probability convenience and snowball sampling was used for the purpose. Findings Unauthorized watching or downloading of online content is reported to be the most prevalent among the various types of questionable behaviours examined. However, it is behaviours such as fraudulent returns and spreading misinformation through online channels which are considered to be the most unethical or illegal. Certain behaviours which may be deemed to be unethical and illegal nevertheless are seen as acceptable. Significant differences between demographics in the case of several of the unethical activities are reported. Research limitations/implications This study examines the grey and dark side of online behaviours among consumers in an emerging market and points to the need for action on several fronts to increase consumer awareness and sensitivity about the unethical or illegal nature of some of their online activities and the implications for multiple stakeholders. Based on the findings of this study, recommendations directed at consumers, marketers and policymakers are discussed. Originality/value Although the benefits of online communication channels have been extensively studied, their ability to facilitate certain unethical and even illegal activities is an under-researched area. The inclination to engage in these types of questionable behaviours may have been exacerbated by the restrictions imposed by the COVID-19 pandemic. This study highlights the importance of research on various grey consumer activities in the digital space and paves the way for further investigations by identifying online actions which are considered as most prevalent and/or unethical and illegal. (shrink)

Julian Schwinger was one of the leading theoretical physicists of the twentieth century. His contributions are as important, and as pervasive, as those of Richard Feynman, with whom he shared the 1965 Nobel Prize for Physics. Yet, while Feynman is universally recognized as a cultural icon, Schwinger is little known even to many within the physics community. In his youth, Julian Schwinger was a nuclear physicist, turning to classical electrodynamics after World War II. In the years after the war, he (...) was the first to renormalize quantum electrodynamics. Subsequently, he presented the most complete formulation of quantum field theory and laid the foundations for the electroweak synthesis of Glashow, Weinberg, and Salam, and he made fundamental contributions to the theory of nuclear magnetic resonance, to many-body theory, and to quantum optics. He developed a unique approach to quantum mechanics, measurement algebra, and a general quantum action principle. His discoveries include 'Feynman's' parameters and 'Glauber's' coherent states; in later years he also developed an alternative to operator field theory which he called Source Theory, reflecting his profound phenomenological bent. His late work on the Thomas-Fermi model of atoms and on the Casimir effect continues to be an inspiration to a new generation of physicists. This biography describes the many strands of his research life, while tracing the personal life of this private and gentle genius. (shrink)

In this paper, the main outlines of the discussions between Niels Bohr with Albert Einstein, Werner Heisenberg, and Erwin Schrödinger during 1920–1927 are treated. From the formulation of quantum mechanics in 1925–1926 and wave mechanics in 1926, there emerged Born's statistical interpretation of the wave function in summer 1926, and on the basis of the quantum mechanical transformation theory—formulated in fall 1926 by Dirac, London, and Jordan—Heisenberg formulated the uncertainty principle in early 1927. At the Volta Conference in Como in (...) September 1927 and at the fifth Solvay Conference in Brussels the following month, Bohr publicly enunciated his complementarity principle, which had been developing in his mind for several years. The Bohr-Einstein discussions about the consistency and completeness of qnautum mechanics and of physical theory as such—formally begun in October 1927 at the fifth Solvay Conference and carried on at the sixth Solvay Conference in October 1930—were continued during the next decades. All these aspects are briefly summarized. (shrink)

This paper deals with the development of, and the current discussion about, the interpretation of quantum mechanics. The following topics are discussed: 1. The Copenhagen Interpretation, 2. Formal Problems of Quantum Mechanics, 3. Process of Measurement and the Equation of Motion, 4. Macroscopic Level of Description, 5. Search for Hidden Variables, 6. The Notion of “Reality” and Epistemology of Quantum Mechanics, 7. Quantum Mechanics and the Explanation of Life.The Bohr‐Einstein dialogue on the validity of the quantum mechanical description of physical (...) reality lasted over two decades. Since the early nineteen fifties, Wiper has provided much of the point and counterpoint of the continuing discussion on the interpretation and epistemology of quantum mechanics. We have explored Wiper's views in some detail against the background of historical development and current debate. (shrink)

This paper deals with the development of, and the current discussion about, the interpretation of quantum mechanics. The following topics are discussed: 1. The Copenhagen Interpretation, 2. Formal Problems of Quantum Mechanics, 3. Process of Measurement and the Equation of Motion, 4. Macroscopic Level of Description, 5. Search for Hidden Variables, 6. The Notion of “Reality” and Epistemology of Quantum Mechanics, 7. Quantum Mechanics and the Explanation of Life.The Bohr‐Einstein dialogue on the validity of the quantum mechanical description of physical (...) reality lasted over two decades. Since the early nineteen fifties, Wiper has provided much of the point and counterpoint of the continuing discussion on the interpretation and epistemology of quantum mechanics. We have explored Wiper's views in some detail against the background of historical development and current debate. (shrink)

In this study, I discuss the development of the ideas of Josiah Willard Gibbs' Elementary Principles in Statistical Mechanics and the fundamental role they played in forming the modern concepts in that field. Gibbs' book on statistical mechanics became an instant classic and has remained so for almost a century.

This article is in three parts. Part I gives an account of Erwin Schrödinger's growing up and studies in Vienna, his scientific work—first in Vienna from 1911 to 1920, then in Zurich from 1920 to 1925—on the dielectric properties of matter, atmospheric electricity and radioactivity, general relativity, color theory and physiological optics, and on kinetic theory and statistical mechanics. Part II deals with the creation of the theory of wave mechanics by Schrödinger in Zurich during the early months of 1926; (...) he laid the foundations of this theory in his first two communications toAnnalen der Physik. Part III deals with the early applications of wave mechanics to atomic problems—including the demonstration of equivalence of wave mechanics with the quantum mechanics of Born, Heisenberg, and Jordan, and that of Dirac—by Schrödinger himself and others. The new theory was immediately accepted by the scientific community. (shrink)

This article (Part II) deals with the creation of the theory of wave mechanics by Erwin Schrödinger in Zurich during the early months of 1926; he laid the foundations of this theory in his first two communications toAnnalen der Physik. The background of Schrödinger's work on, and his actual creation of, wave mechanics are analyzed.

This article (Part III) deals with the early applications of wave mechanics to atomic problems—including the demonstration of the formal mathematical equivalence of wave mechanics with the quantum mechanics of Born, Heisenberg, and Jordan, and that of Dirac—by Schrödinger himself and others. The new theory was immediately accepted by the scientific community.

In this series of articles the early life and work of the young Julian Schwinger are explored. In the present article, we discuss Schwinger's winding up his work at the MIT Radiation Laboratory, being offered a tenured professorship at Harvard University, getting married, and settling down into a highly productive teaching and research career.

In this series of articles the early life and work of the young Julian Schwinger is explored. After a brilliant beginning at Columbia University, where he received his Ph.D., Schwinger went to work with J. Robert Oppenheimer in Berkeley. His stay, work, and interactions with Oppenheimer are discussed.

In this series of articles the early life and work of the young Julian Schwinger are explored. In this first article, Schwinger's childhood, growing-up, and early education are discussed.

In this series of articles the early life and work of the young Julian Schwinger are explored. In the present article, Schwinger's work at the MIT Radiation Laboratory during the Second World War is described.

In this series of articles the life and work of the young Julian Schwinger are explored. In this second article in the series, Schwinger's work at Columbia University, up to the completion of his doctorate and a little after, is discussed. Schwinger soon matured into a brilliant theoretical physicist.