Quantum mechanical measurements on a physical system are represented by observables - Hermitian operators on the state space of the observed system. It is an important question whether all observables may be realized, in principle, as measurements on a physical system. Dirac’s influential text ( [1], page 37) makes the following assertion on the question: The question now presents itself – Can every observable be measured? The answer theoretically is yes. In practice it may be very awkward, or perhaps even (...) beyond the ingenuity of the experimenter, to devise an apparatus which could measure some particular observable, but the theory always allows one to imagine that the measurement can be made. This Letter re-examines the question of whether it is possible, even in principle, to measure every quantum mechanical observable. Unexpectedly, ideas from com-. (shrink)

Covers all the important theories from the period 1250-1400, including "maiores" as well as "minores," and issues in a discussion of Marsilius of Inghen (d. ...

The paper intends to objectively review the ecological understanding of Upaniṣhadic ṛṣis. Since ecology is a modern notion, it is required to precisely place it within the Upaniṣhadic thought. For that purpose, a possible ontological structure of Upaniṣhadic philosophy is sorted in which the discussion of ecology becomes meaningful. Upaniṣhadic ṛṣis conceived ecology as a part of their metaphysics, that is, one which is assisted by the devatas. There is a dependent coexistence between Devatas, Humans and the world. This feature (...) of Upaniṣhadic philosophy should not be treated as a declaration for environmental conservation. It is rather seen as a theory of consumption and calibration from both sides. Although ecology is integrated into the Upaniṣhadic metaphysics, it is not one of the subject matters of Upaniṣhads. An understanding of ecology traceable from Upaniṣhads is supplementary to Upaniṣhadic theory of Devatas. Thus, the author concludes that the Upaniṣhadic ecology is metaphysical rather than natural. (shrink)

Tradicionalmente se ha entendido que la mejor teoría de la responsabilidad extracontractual es aquella que mejor explica los rasgos centrales de la práctica. En este sentido, los defensores de las teorías deontológicas, basadas en principios de justicia, han rechazado el poder explicativo del análisis económico del derecho. Han sostenido que no logra reconstruir la práctica dando sentido a sus conceptos centrales, ni al modo en que están relacionados. Por lo tanto, no puede explicar la pauta de inferencias que llevan a (...) un juicio de responsabilidad. En este trabajo me propongo mostrar que ambas teorías son capaces de explicar aspectos diferen- tes de la práctica. En contra de lo que se asume generalmente, el análisis económico del derecho y las teorías deontológicas no son teorías rivales, sino compatibles, puesto que tienen por objeto responder a preguntas distintas. (shrink)

Mishel Fuco not only influenced the consciousness of modern West, but changed the modus of thinking, the way of perception of many traditional notions, transformed the opinions about the reality, history, person. Philosopher’s principle research programme which attaches the entirety to his works is “archeology of knowledge” programme, the search of human knowledge’s original layers. Let us mark that all Fuco’s works in 1960s are devoted to main aim: to clear up the conditions of historical origin of different mental aims (...) and social institutions in the culture of the Modern Time. Though in the whole this common aim remained for Fuco invariable, but the level on which he realizes his research search is changing constantly and rather logically. Relations of power, and to be more exact,accumulations of power and knowledge, social and cognitive which define all the aggregate of specific possibilities of culture in each given historical period. More than that the philosopher offers the particular prospects of sight of modern society and precisely totality of power relations, its ubiquitous nature and specific productivity which produces itself in each moment in any point or rather in any attitude from one point to another. From Fuco’s point of view the power is everywhere and not because it involves everything but because it comes from everywhere. The power is productive in that degree in which it is not associated with one definite imperious instance but pierces all kinds of activity in society, putting on its indelible stamp, developing under definite angle and due to this factit causes products, produced by them. The power induces and at the same time determines the fact which appears as a result of its inducement. The thirst of supremacy, which surrounds the individual and is focused on it as on the center of its use of force, comes out as a defining sign. It should be noticed that Fuco’s conception of power is not reduced to the understanding it as anonymous impersonal net of relations, piercing all society. It is supplemented by power treatment,coming out in “designed” look of definite imperious structure or imperious institute. (shrink)

carrington places race and racism at the center of his densely written analysis of science fiction, fantasy, utopia, and other forms of popular culture. He moves easily between a broad range of forms, which include memoirs, television series, comic books, novels, novelizations, fandom and fanzines, and short fiction and fiction circulated on the Internet. Popular culture helps us to construct notions of identity and race, and for carrington many constituent groups, notably fans, develop its key concepts and values.Speculative fiction is (...) for carrington a framework that links these various forms of popular culture. Here, SF is a genre different from literature, as it is situated closer to, and is more deeply... (shrink)

Originally published in 1939, this volume contains the text of an inaugural lecture delivered by M. M. Postan on his accession to the Professorship of Economic History at the University of Cambridge. This book will be of value to anyone with an interest in economic history or the history of the study of humanities.

This article, which is an adaptation of a lecture delivered at Villanova University in the Fall of 2015, proposes a reading of Augustine’s Confessions with the assistance of the notions of absorption and theatricality. The very use of those notions is meant to counterbalance the readings generated by our overfamiliarity with Augustinian interiority. By replacing interiority with a concept that, heretofore, is alien to the Augustinian vocabulary, it becomes possible to block facile access to mystical interpretations of conf. on the (...) one hand, and to embark upon the task of reassessing the nature of “confessing” on the other. This new reading demonstrates the difficulties involved in approaching the confessor fully involved in his act of sustained confessing. A comparison is also made with the notion of absorption in the visual arts. Just as spectatordom becomes problematic vis-à-vis a painting whose personae look inward rather than outward, so too the position of the reader vis-à-vis a text whose confessing creator uninterruptedly addresses his Confessee demands a redefinition of the reader’s role and place in the process. (shrink)