Journal Name: Semiotica - Journal of the International Association for Semiotic Studies / Revue de l'Association Internationale de Sémiotique Volume: 2014 Issue: 198 Pages: 205-240.

Dirac's approach to gauge symmetries is discussed. We follow closely the steps that led him from his conjecture concerning the generators of gauge transformations {\it at a given time} ---to be contrasted with the common view of gauge transformations as maps from solutions of the equations of motion into other solutions--- to his decision to artificially modify the dynamics, substituting the extended Hamiltonian for the total Hamiltonian. We show in detail that Dirac's analysis was incomplete and, in completing it, we (...) prove that the fulfilment of Dirac's conjecture ---in the ``non-pathological" cases--- does not imply any need to modify the dynamics. We give a couple of simple but significant examples. (shrink)

The last years of the 20th Century have been somewhat contradictory with respect to values like loyalty, trust or truthfulness. On the one hand, (often implicitly, but sometimes very explicitly), self-interest narrowly defined seems to be the dominant force in the business world, both in theory and in practice. On the other hand, alliances, networks and other forms of cooperation have shown that self-interest has to be at least "enlightened".The academic literature has reflected both points of view, but frequently in (...) an ambiguous way, since the concepts of loyalty and trust are somewhat elusive and equivocal. This paper attempts to analyze the concept of loyalty in depth, examining the different conceptions about the word that can be found in the literature. We begin by going to the management classics (specifically, Follett, Barnard and Simon), and we then turn to the anthropological approach of Pérez López (1993), with its built-in ethical analysis, and show how trust and loyalty are crucial to the development of organizations. We end by suggesting in what ways loyalty and trust can be created and fostered in organizations. (shrink)

ukasiewicz''s four-valued modal logic is surveyed and analyzed, together with ukasiewicz''s motivations to develop it. A faithful interpretation of it in classical (non-modal) two-valued logic is presented, and some consequences are drawn concerning its classification and its algebraic behaviour. Some counter-intuitive aspects of this logic are discussed in the light of the presented results, ukasiewicz''s own texts, and related literature.

In this paper we study the relations between the fragment L of classical logic having just conjunction and disjunction and the variety D of distributive lattices, within the context of Algebraic Logic. We prove that these relations cannot be fully expressed either with the tools of Blok and Pigozzi's theory of algebraizable logics or with the use of reduced matrices for L. However, these relations can be naturally formulated when we introduce a new notion of model of a sequent calculus. (...) When applied to a certain natural calculus for L, the resulting models are equivalent to a class of abstract logics (in the sense of Brown and Suszko) which we call distributive. Among other results, we prove that D is exactly the class of the algebraic reducts of the reduced models of L, that there is an embedding of the theories of L into the theories of the equational consequence (in the sense of Blok and Pigozzi) relative to D, and that for any algebra A of type (2,2) there is an isomorphism between the D-congruences of A and the models of L over A. In the second part of this paper (which will be published separately) we will also apply some results to give proofs with a logical flavour for several new or well-known lattice-theoretical properties. (shrink)

This book is the culmination of the COST Action CA15212 Citizen Science to Promote Creativity, Scientific Literacy, and Innovation throughout Europe. It represents the final stage of a shared journey taken over the last 4 years. During this relatively short period, our citizen science practices and perspectives have rapidly evolved. In this chapter we discuss what we have learnt about the recent past of citizen science and what we expect and hope for the future.

This paper contains a joint study of two sentential logics that combine a many-valued character, namely tetravalence, with a modal character; one of them is normal and the other one quasinormal. The method is to study their algebraic counterparts and their abstract models with the tools of Abstract Algebraic Logic, and particularly with those of Brown and Suszko's theory of abstract logics as recently developed by Font and Jansana in their "A General Algebraic Semantics for Sentential Logics". The logics studied (...) here arise from the algebraic and lattice-theoretical properties we review of Tetravalent Modal Algebras, a class of algebras studied mainly by Loureiro, and also by Figallo, Landini and Ziliani, at the suggestion of the late Antonio Monteiro. (shrink)

In this paper, we review the conventional analyses of management control systems, to conclude, first, that the illusion of control can mislead managers into believing that everything can be controlled and monitored, and, second, that no incentive system based only on extrinsic rewards can motivate individuals properly. Then, we investigate the philosophical foundations of the basic assumptions that, implicitly or explicitly, are made about the nature of the acting person. Based on personalist phenomenology, we show how the development of technical (...) and moral values is crucial to the long-run survival of organizations. We end by offering some guidelines as to what control systems should be like in order to be compatible with the nature of human persons. (shrink)

Sobre el tiempo y la música -- Las óperas de Josep Soler -- Kom-Ombo -- El misterio de San Francisco.

The inference systems proposed for solving SAT are unsound for solving MaxSAT and MinSAT, because they preserve satisfiability but not the minimum and maximum number of clauses that can be falsified, respectively. To address this problem, we first define a clause tableau calculus for MaxSAT and prove its soundness and completeness. We then define a clause tableau calculus for MinSAT and also prove its soundness and completeness. Finally, we define a complete clause tableau calculus for solving both MaxSAT and MinSAT, (...) in that the minimum number of generated empty clauses provides an optimal MaxSAT solution and the maximum number provides an optimal MinSAT solution. (shrink)

In practice, the relationship between business and ethics is not well-settled. In the past, organisations have developed an interest in setting value charts but this has been approached from a purely managerial perspective following the momentum and interest aroused by research on organisational cultures. Although interest in managing organisational cultures has slowly died down, for both theoretical and practical reasons we argue that there are feasible ways to explore values as part of an organisational culture. Indeed it is our claim (...) that it is feasible and productive to discuss values within organisations. However, rather than developing sophisticated theoretical frameworks, more efforts should be put into thinking about the conditions under which participants can enter into productive dialogue. It is our claim that if processes are carefully examined people within organisations can make better sense of their work and discover their own perspective to account for what they actually do and to project themselves into what they think they should be doing. Thus, values identified within the organisation can eventually reach a point where they become an expression of a shared commitment. The experience we describe aims to illustrate only one example of a concrete application of this approach. (shrink)

There are many theories about organizations that are mutually inconsistent with each other, which explain phenomena to very similar extents. Most of them ignore the ethical dimension completely. In this paper I put forth the basic principles for a theory of decision-making in organizations, which integrates ethics in the core of the theory. It is based on the work of Juan Antonio Pérez López [1991, Teoría de la Acción humana en las organizaciones (Ediciones Rialp, Madrid), 1993, Fundamentos de la Dirección (...) de Empresas (Ediciones Rialp, Madrid)] and is essentially a humanistic view of the interrelationships between people and its implications for organizational decision-making. I will first show that in any relationship between two people, the learning of the two is crucial for such a relationship to last; and then I will expand on the different aspects of that learning. This analysis will then be applied to the organizational context as a basis for organizational decision-making, Second, it applies the previous analysis to the organizational context as a basis for organizational decision making, showing how any decision in an organization needs to be analyzed on the basis of three criteria (short-run effectiveness, development of distinctive competence, and unity and identification with the organization) and how ethics is included in the last two. (shrink)

In this paper two deductive systems associated with relevance logic are studied from an algebraic point of view. One is defined by the familiar, Hilbert-style, formalization of R; the other one is a weak version of it, called WR, which appears as the semantic entailment of the Meyer-Routley-Fine semantics, and which has already been suggested by Wójcicki for other reasons. This weaker consequence is first defined indirectly, using R, but we prove that the first one turns out to be an (...) axiomatic extension of WR. Moreover we provide WR with a natural Gentzen calculus. It is proved that both deductive systems have the same associated class of algebras but different classes of models on these algebras. The notion of model used here is an abstract logic, that is, a closure operator on an abstract algebra; the abstract logics obtained in the case of WR are also the models, in a natural sense, of the given Gentzen calculus. (shrink)

Le Lysis est l’histoire d’un ruban, d’un nœud qui se tresse et se détresse. L’étude d’Antoni Bosch-Veciana pivote autour de l’interpré­tation du dialogue comme figuration d’une scène où l’on établit une synousia, un lien, qui se défait à la fin (dielusamen). La clef de voûte de l’ouvrage est le mot synousia. « Si, en effet, on prête attention à l’en­semble du Lysis à partir de l’affirmation finale, le διελύσαμεν τὴν συνουσίαν de 223b3 (dissolguérem la reunió [« nous avons dissous la (...) réu­nion... (shrink)

This paper reviews the development of socially responsible investment (SRI) in the Spanish financial market. The year, 1997 saw the appearance in Spain of the first SRI mutual fund, but it was not until late 1999, that major Spanish fund managers offered SRI mutual funds on the retail market. The development of SRI in the Spanish financial market has not experienced the high levels of development seen in other European countries, such as France or Italy, where interest in SRI began (...) during the same period. This paper presents an analysis of the impact of SRI mutual funds managed by Spanish fund managers comparing the evolution of managed assets and number of investors. We also analyse the investment strategies adopted by these funds, which mainly use negative screening criteria and the participation of non-governmental organisations as institutional investors. An analysis of the take up of socially responsible investment in the Spanish financial market shows majors deficits in this process. This is due to Spanish investors having limited sensitivity to social issues and knowledge of SRI, and a lack of development of SRI investment strategies, such as engagement or shareholder activism by fund managers. Furthermore, the take-up of SRI mutual funds in the Spanish financial market coincided with a fall in the stock market at the beginning of the 21st Century. We conclude with an analysis of the relationship between SRI and Corporate Social Responsibility (CSR). (shrink)

This article examines the relevance of a theory of the multinational state for the evaluation of claims for self-determination and secession. Considerations of ?ethnocultural justice? imply that the recognition of the multinational character of a state ? or the granting of some of the minority nations' demands ? is a matter of justice. If these requirements are not met, secession could be justified. Indeed, if secession needs a just cause (as it has been argued), a failure to build a truly (...) multinational arrangement can be a valid reason for a minority nation to secede. An approach like the one proposed would also contribute to the resolution of some of the key problems of the three main theories of secession and their appeals to nationalism, choice and remedial rights. (shrink)

This paper has a twofold scope. The first one is to clarify and put in evidence the isomorphic character of two theories developed in quite different fields: on one side, threshold logic, on the other side, simple games. One of the main purposes in both theories is to determine when a simple game is representable as a weighted game, which allows a very compact and easily comprehensible representation. Deep results were found in threshold logic in the sixties and seventies for (...) this problem. However, game theory has taken the lead and some new results have been obtained for the problem in the past two decades. The second and main goal of this paper is to provide some new results on this problem and propose several open questions and conjectures for future research. The results we obtain depend on two significant parameters of the game: the number of types of equivalent players and the number of types of shift-minimal winning coalitions. (shrink)

The aim of this article is to think the relationship between the search for reality or the truth with methodology, by asking some questions to different theoretical perspectives and by analyzing different answers given by the authors and theories. From the sociological theoretical perspective, it deals with two levels of thought with methodological implications. The first refers to the methodological implications arising from the search for reality or truth. The second, epistemological, refers to the theoretical and paradigmatic duality between subjective (...) capacity decisions against the constriction of the subjects by the structures. El objetivo de este artículo es pensar el nexo de la búsqueda de la realidad o de la verdad con la metodología, al plantear preguntas a diversas corrientes teóricas y analizar las respuestas de cada autor o corriente al respecto. Desde la perspectiva teórica sociológica, se abordan dos niveles de reflexión con implicaciones metodológicas. El primero, hace referencia a las implicaciones metodológicas derivadas de la búsqueda de la realidad o de la verdad. El segundo, de carácter epistemológico, hace referencia a la dualidad teórica y paradigmática existente entre la capacidad subjetiva de decisión frente a la constricción de los sujetos por parte de las estructuras. (shrink)