Central to many issues surrounding reduction in science is the relation between a physical system and its components. In this article we examine how thermodynamic theory relates properties of whole systems to properties of their components. In order to keep the analysis general, we focus our study on universal properties like volume, heat capacity, energy and temperature. In the cases examined we find that scientific explanation requires appeal to properties of components that are spatially as extensive as the whole system. (...) We discuss some implications of our study for the purported paradigmatic reductions of heat and temperature to molecular motion. We conclude that while macro systems reduce ontologically to micro components, epistemologically the reduction of theoretical concepts in general fails. (shrink)

Two different models for chemical bond were developed almost simultaneously after the Schrödinger formulation of quantum theory. These are known as the valence bond (VB) and molecular orbital (MO) theories. Initially chemists preferred the VB theory and ignored the MO theory. Now the VB theory is almost dropped out of currency. The context of discovery and Linus Pauling’s overpowering influence gave the VB theory its initial advantage. The current universal acceptance of the MO theory is due to its ability to (...) provide direct interpretation of many different types of experiments now being pursued. In current research both localized bonds and delocalized charge distributions play important roles and the MO theory has been successful in giving a good account of both. (shrink)

Varieties of chemical and phase equilibria are controlled by the minimum Gibbs energy principle, according to which the Gibbs energy for a system will have the minimum value at any given temperature and pressure. It is understood that the minimum is with respect to all nonequilibrium states at the same temperature and pressure. The abstract relation between Gibbs energy and the equilibrium constant is deduced from fundamental laws of thermodynamics. However, actual use of this relation calls for the Gibbs energy (...) as a function of concentrations of the chemicals. Since thermodynamics is formulated without any reference to materials, how does one get that relation? This article provides the answer, and in the process shows that application of theory to experiments requires several intermediate layers where theory and experiment commingle. (shrink)

The main aim of this paper is to discuss a recently discovered manuscript of Vāsudēvappāṭṭu and to comment on the characteristic features of the text: its devotional content, language and philosophy. Vāsudēvappāṭṭu is a bhakti song written in the Tamil-Maṇipravāḷa language and attributed to Pūntānam (1547–1640), one of the prominent devotional poets of Kerala, who is often praised as a talented and prolific writer and an ardent devotee of Kṛṣṇa. The first section of the paper investigates the linguistic features of (...) the work, the writing style, and the characteristics of the manuscript itself. The second part focuses on the content of the poem: its style, tone, and religious motives. Furthermore, the article suggests that Vāsudēvappāṭṭu belongs to the South-Indian pāṭṭu genre and discusses the work in the context of the pāṭṭu literature of Kerala. Moreover, to highlight the performative aspects of pāṭṭu, the authors have recorded a traditional recitation of Vāsudēvappāṭṭu, which can be found attached to this paper. The paper also considers the features of the manuscript and therefore contributes to current research on Keralan Bhakti literature and participates in ongoing debates on the production of pre-modern Indian texts and manuscriptology. (shrink)

Graph-based frames have been introduced as a logical framework which internalises an inherent boundary to knowability (referred to as ‘informational entropy’), due, e.g. to perceptual, evidential or linguistic limits. They also support the interpretation of lattice-based (modal) logics as hyper-constructive logics of evidential reasoning. Conceptually, the present paper proposes graph-based frames as a formal framework suitable for generalising Pawlak's rough set theory to a setting in which inherent limits to knowability exist and need to be considered. Technically, the present paper (...) establishes systematic connections between the first-order correspondents of Sahlqvist modal reduction principles on Kripke frames, and on the more general relational environments of graph-based and polarity-based frames. This work is part of a research line aiming at: (a) comparing and inter-relating the various (first-order) conditions corresponding to a given (modal) axiom in different relational semantics; (b) recognising when first-order sentences in the frame-correspondence languages of different relational structures encode the same ‘modal content’; (c) meaningfully transferring relational properties across different semantic contexts. The present paper develops these results for the graph-based semantics, polarity-based semantics, and all Sahlqvist modal reduction principles. As an application, we study well known modal axioms in rough set theory (such as those corresponding to seriality, reflexivity, and transitivity) on graph-based frames and show that, although these axioms correspond to different first-order conditions on graph-based frames, their intuitive meaning is retained. This allows us to introduce the notion of hyperconstructivist approximation spaces as the subclass of graph-based frames defined by the first-order conditions corresponding to the same modal axioms defining classical generalised approximation spaces, and to transfer the properties and the intuitive understanding of different approximation spaces to the more general framework of graph-based frames. The approach presented in this paper provides a base for systematically comparing and connecting various formal frameworks in rough set theory, and for the transfer of insights across different frameworks. (shrink)

BackgroundDiagnostic ultrasound has long been a part of a physician’s armamentarium, but transcranial focused ultrasound (FUS) is an emerging treatment of neurological disorders. Consequently, the literature in this field is increasing at a rapid pace.ObjectiveThis analysis was aimed to identify the top-cited articles on FUS to discern their origin, spread, current trends highlighting future impact of this novel neurosurgical intervention.MethodsWe searched the Web of Science database on 28th May 2021 and identified the top 100 cited articles. These articles were analyzed (...) with various scientometric parameters like the authors, corresponding authors, country of corresponding author, journal of publication, year of publication. Citation based parameters including total citations, mean citations per article and mean citations, citation count, and the citation per year, citations per year and co-authors per document were studied as well in addition to Hirsch h-index, g-index, m-index, Bradford’s Law, Lotka’s law and Collaboration index.ResultsThe 100 top-cited articles were published between 1998 and 2019 in 45 different journals. The average citations per document and citations per document per year were 97.78 and 12.47, respectively. The most prolific authors were Hynynen K (Medical Biophysics—Toronto), Elias WJ (Neurosurgery—Virginia), Zadicario (InSightec). The Journal of Neurosurgery published the most top-cited articles (n = 11), and most articles originated from the United States, followed by Canada. Among individual institutions, the University of Toronto was the most productive.ConclusionFUS is an emerging treatment of neurological disorders. With its increasing application, the FUS literature is increasing rapidly. Eleven countries contributed to the top 100 cited articles, with the top 2 countries (the United States and Canada) contributing to more than half of these articles. (shrink)

Philosophical interpretation of the cult of Krishna (Hindu deity) and spiritual life.

Daya Krishna(Photo courtesy of Jay Garfield)Govind Chandra Pande(Photo courtesy of his daughter amita sharma)Daya Krishna was the public face of Indian philosophy in the first half-century after Indian independence. Nobody on the Indian scene in that period came close to him in influence or in contribution to the profession. Nobody else in the world thought as hard or as fruitfully about the relation of Indian philosophy to that of the rest of the world, and nobody else dared to (...) think as creatively and even as heretically about the history of Indian philosophy itself. To be sure, the Indian philosophical scene during this period was always a vibrant and creative matrix of thought, and many contributed to that .. (shrink)

The volume editors have organized the volume as a set of ten couplets and triplets.

Transcript of papers presented in a seminar and meetings.

Emotions play a significant role in human cognitive processes such as attention, motivation, learning, memory, and decision making. Many researchers have worked in the field of incorporating emotions in a cognitive agent. However, each model has its own merits and demerits. Moreover, most studies on emotion focus on steady-state emotions than emotion switching. Thus, in this article, a domain-independent computational model of emotions for intelligent agent is proposed that have modules for emotion elicitation, emotion regulation, and emotion transition. The model (...) is built on some well-known psychological theories such as appraisal theories of emotions, emotion regulation theory, and multistore human memory model. The design of the model is using the concept of fuzzy logic to handle uncertain and subjective information. The main focus is on primary emotions as suggested by Ekman; however, simultaneous elicitation of multiple emotions is also supported by the model. (shrink)

The relatively simple central nervous system (CNS) of the Drosophila embryo provides a useful model system for investigating the mechanisms that generate and pattern complex nervous systems. Central to the generation of different types of neurons by precursor neuroblasts is the initial specification of neuroblast identity and the Drosophila segment polarity genes, genes that specify regions within a segment or repeating unit of the Drosophila embryo, have emerged recently as significant players in this process. During neurogenesis the segment polarity genes (...) are expressed in the neuroectodermal cells from which neuroblasts delaminate and they continue to be expressed in neuroblasts and their progeny. Loss-of-function mutations in these genes lead to a failure in the formation of neuroblasts and/or specification of neuroblast identity. Results from several recent studies suggest that regulatory interactions between segment polarity genes during neurogenesis lead to an increase in the number of neuroblasts and specification of different identities to neuroblasts within a population of cells. BioEssays 21:472–485, 1999. © 1999 John Wiley & Sons, Inc. (shrink)

Small and medium-sized firms form 90% of the worldwide population of businesses. However, it has been argued that given their smaller scale of operations, resource access constraints and lower visibility, smaller firms are less likely to participate in Corporate Social Responsibility (CSR) initiatives. This article examines the different economic motivations of firms with varying combinations of visibility, resource access and scale of operations. Arguments are presented to propose that in terms of visibility, resource access and operating scale, very small and (...) very large firms are equally motivated to participate in CSR. However, the motivational bases for CSR participation are likely to be different. Medium-sized firms are the least motivated. This suggests a U-shaped relationship between firm size and CSR participation. This study contributes towards resolution of the long-standing debate on the effects of firm size on CSR participation, and highlights the importance of considering configurations of firm characteristics in the study of CSR outcomes. In conclusion, cautions are raised against the broad categorization of firms, without adequate attention to the underlying dimensions of such categorizations. (shrink)

The competent and detailed introduction to this book traces out the origin and rudiments of religions, their essential nature and the causes of their conflicts. It emphasises the truth that all religions are trying to say the same thing in different ways. Religions are meant to bring out the spiritual in man and to make him live a full and virtuous life. Despite the rapid progress in science and medicine, the mysteries of life and death remain as unknown as before. (...) Religions try, in their myriad ways, to explain these and to venture into the unknowable. They bring comfort to human beings in their suffering, and consolation in their bereavement. The author's belief is that if, while following their own religion, men respected the faiths of others too, much of the religious conflicts and bloodshed which debases mankind would be avoided. The fundamental concepts of Hindu religion and philosophy have exhaustively been narrated in a clear manner. This is followed by selected passages from the main scriptures and philosophical books of the Hindu religion-the Vedas, Puranas, Upanisheads, brahma-sutras, Bhagavadgita, the Mahabharata and the Ramayana of Tulsidasa. In each case there is a synopsis of the book giving its subject matter and a reading list consisting of the main texts and criticisms which will be invaluable to those who wish to know more about it. The passages have been selected to provide interesting reading, particularly connected with the problems and conditions of our own times. The book aims at providing a mine of information about Hinduism and is also an in-depth study of religion in general. It has been written in down-to-earth language and is of interest to all those who are wish to know about matters vital to life and living. (shrink)