Polo's notion of act of being is based on the equivalence between the notio of act and that of a first principle. A study of the central axioms of metaphy-sics compared with principles of identity and non-contradiction is also in-cluded.

This paper is an investigation into "abandonment of mental limit" in order to distinguish "being" and "thought". The philosophy of Leonardo Polo carries out that distinction with a study on "acts" and "habits" of knowledge. The difference between knowledge and being is exclusively the mental presence.

In this paper I show the importance of the methodical dimension in the philosophy of Leonardo Polo. This point is well illustrated in the recent book of Héctor Esquer Gallardo, El límite del pensamiento. La propuesta metódica de Leonardo Polo.

Name der Zeitschrift: Deutsche Zeitschrift für Philosophie Jahrgang: 65 Heft: 2 Seiten: 337-348.

Se enmarca la historia del Segundo Imperio en México dentro del contexto internacional estudiando la influencia de la situación y los conflictos europeos de la época, la diplomacia que desarrolló Maximiliano y el papel de los Estados Unidos ante la Intervención Francesa.

Inter-organizational models are both a well-documented phenomena and a well-established domain in management and business ethics. Those models rest on collaborative capabilities. However, mainstream theories and practices aimed at developing these capabilities are based on a narrow set of assumptions and ethical principles about human nature and relationships, which constrain the very development of capabilities sought by them. This article presents an Aristotelic–Thomistic approach to collaborative entrepreneurship within and across communities of firms operating in complementary markets. Adopting a scholarship of (...) integration approach and evaluating the six studies of communities of organizations, we contribute an inter-organizational network model based on the assumptions about human motives and choice offered by Aristotle. We argue that the sustainability of inter-organizational communities depends on how rich is the set of assumptions about human nature upon which they are based. In order to develop and sustain collaborative capabilities in inter-organizational communities, a set of assumptions that takes both self-regarding and others’-regarding preferences as ends is required to avoid any kind of instrumentalization of collaboration, which is an end in itself. Implications for theory and practice are discussed. (shrink)

This study explores the efficacy of a specific tool – the articulation of the ideal self – in job engagement, psychological well-being, and organizational citizenship behavior. We hypothesized that employees who can visualize their jobs as part of their ideal self – in particular how it helps in its development and realization – would feel higher levels of engagement and fulfillment in their lives, as well as engage in greater amounts of helping and voice OCB. A total of 239 full (...) time employees from five companies in Costa Rica filled out the ideal self questionnaire, the job engagement, and psychological well-being surveys, and were evaluated by their peers on task behavior and helping and voice OCB. Results of the SEM model showed that the ideal self was positively related to job engagement, psychological well-being and helping and voice. These findings contribute to the research on the impact and importance for organizations to help employees find meaningfulness in their work. (shrink)

La resistencia de la memoria. Un recorrido por el proyecto: Se rebelan, se revelan, de Estudio Biopus.

En este artículo se examina la influencia que ejerce la violencia en la construcción del Estado. Asimismo, desde la perspectiva de Hannah Arendt, se analiza la política como espacio donde se afirma y protege la vida a través de la acción política y las normas jurídicas. Se trata de razonar el dualismo política-violencia, y violencia-normas jurídicas. En este sentido, la pregunta que da origen al presente escrito se enuncia en los siguientes términos: ¿cómo es posible reafirmar la vida como voluntad (...) a través de la política y cuidar de la existencia humana en un contexto en donde la violencia pareciera ser consustancial a la forma de estado y al medio por el cual se construye la comunidad política? Un examen riguroso de las circunstancian que fuerzan el análisis de este interrogante conduce necesariamente a sostener que: solo se podrá afirmar la vida a través del ejercicio de la política, cuando la sociedad política sea concebida como una construcción institucional cuya meta principal sea combinar la libertad de los individuos y las colectividades con la unidad de las normas jurídicas. (shrink)

A Computable Universe is a collection of papers discussing computation in nature and the nature of computation, a compilation of the views of the pioneers in the contemporary area of intellectual inquiry focused on computational and informational theories of the world. This volume is the definitive source of informational/computational views of the world, and of cutting-edge models of the universe, both digital and quantum, discussed from a philosophical perspective as well as in the greatest technical detail. The book discusses the (...) foundations of computation in relation to nature. It focuses on two main questions: What is computation? How does nature compute? The contributors are world-renowned experts who have helped shape a cutting-edge computational understanding of the universe. They discuss computation in the world from a variety of perspectives, ranging from foundational concepts to pragmatic models to ontological conceptions and their philosophical implications. The volume provides a state-of-the-art collection of technical papers and non-technical essays representing a field that takes information and computation to be key to understanding and explaining the basic structure underpinning physical reality. It also includes a new edition of Konrad Zuse's "Calculating Space", and a panel discussion transcription on the topic, featuring worldwide experts (including a Nobel prize) in quantum mechanics, physics, cognition, computation and algorithmic complexity.A Computable Universe is a collection of papers discussing computation in nature and the nature of computation, a compilation of the views of the pioneers in the contemporary area of intellectual inquiry focused on computational and informational theories of the world. This volume is the definitive source of informational/computational views of the world, and of cutting-edge models of the universe, both digital and quantum, discussed from a philosophical perspective as well as in the greatest technical detail. The book discusses the foundations of computation in relation to nature. It focuses on two main questions: What is computation? How does nature compute? The contributors are world-renowned experts who have helped shape a cutting-edge computational understanding of the universe. They discuss computation in the world from a variety of perspectives, ranging from foundational concepts to pragmatic models to ontological conceptions and their philosophical implications. The volume provides a state-of-the-art collection of technical papers and non-technical essays representing a field that takes information and computation to be key to understanding and explaining the basic structure underpinning physical reality. It also includes a new edition of Konrad Zuse's "Calculating Space", and a panel discussion transcription on the topic, featuring worldwide experts (including a Nobel prize) in quantum mechanics, physics, cognition, computation and algorithmic complexity. (shrink)

This book describes in detail the relationship between symbolic representations of knowledge and abstract states of knowledge, exploring along the way the foundations of knowledge, knowledge bases, knowledge-based systems, and knowledge representation and reasoning. The idea of knowledge bases lies at the heart of symbolic, or "traditional," artificial intelligence. A knowledge-based system decides how to act by running formal reasoning procedures over a body of explicitly represented knowledge—a knowledge base. The system is not programmed for specific tasks; rather, it is (...) told what it needs to know and expected to infer the rest. This book is about the logic of such knowledge bases. It describes in detail the relationship between symbolic representations of knowledge and abstract states of knowledge, exploring along the way the foundations of knowledge, knowledge bases, knowledge-based systems, and knowledge representation and reasoning. Assuming some familiarity with first-order predicate logic, the book offers a new mathematical model of knowledge that is general and expressive yet more workable in practice than previous models. The book presents a style of semantic argument and formal analysis that would be cumbersome or completely impractical with other approaches. It also shows how to treat a knowledge base as an abstract data type, completely specified in an abstract way by the knowledge-level operations defined over it. (shrink)

This article discusses Jacques Rancière's theory of literature as centred on an agonistic concept of literature, where literature is seen as a ‘positive contradiction’. This positive contradiction arises from what Rancière sees as literature's origins in the ‘errant letter’, which is conceived as an intrinsically democratic principle that, for Rancière, also results in the tendency of literature to incarnate the word and to propose an extra-textual truth which would signal the end of literature as democratic errancy. Asking whether it is (...) possible to identify Rancière as ‘taking sides’ in what he sets up as a struggle, the article analyses three examples of Rancière's engagement with literary texts in which he demonstrates the necessity for literature to maintain its constitutive contradiction, resulting in a conception of literature as an agonistic field and as a self-critical mode of writing. (shrink)

Detecting intrusions in large networks is a highly demanding task. In order to reduce the computation demand of analysing every single packet travelling along one of such networks, some years ago flows were proposed as a way of summarizing traffic information. Very few research works have addressed intrusion detection in flows from a visualizations perspective. In order to bridge this gap, the present paper proposes the application of a novel projection method (Beta Hebbian Learning) under this framework. With the aim (...) to validate this method, 8 traffic segments, containing many flows, have been analysed by means of this projection method. The promising results obtained for these segments, extracted from the University of Twente dataset, validate the proposed application. (shrink)

Some basic mathematical facts pertaining to " Catastrophe Theory" are sketched. The alleged applications to the social sciences are studied. Three representative models, due to E.C. Zeeman, are described in detail, and critically analyzed. The models are found to be vaguely formulated, to be based on false hypotheses, to lead to few nontrivial predictions. Moreover, most of those predictions do not agree with reality. Finally, the only nontrivial mathematical result used in these models - Thom 's theorem - is found (...) to be incorrectly applied. It is concluded that no justification exists for the claim that Catastrophe Theory can be applied to the social sciences. (shrink)

In seinen moralphilosophischen Schriften hat Kant immer wieder die Selbsttötung als Beispiel für die Erläuterung ethischer Grundsätze gewählt. Daraus darf man schließen, daß er dem moralischen Problem des Suizids große Bedeutung beimaß. Dennoch liegt bis heute keine vollständige Darstellung seiner Argumente gegen die Erlaubtheit der Selbstvernichtung vor. Der vorliegende Aufsatz beabsichtigt, diese Lücke zu schließen. Zwar wird auch in der Literatur über Kants Ethik gelegentlich sein Suizidverbot behandelt, dabei überwiegt aber, wie mir scheint, das Interesse an der Interpretation des kategorischen (...) Imperativs die Aufmerksamkeit für die größeren Zusammenhänge, in die Kants Ablehnung der Selbsttötung zu stellen ist. Sicherlich kommt dem kategorischen Imperativ als einem Kernstück der Kantschen Moralphilosophie eine große Bedeutung zu; jedoch zwingt gerade die Analyse des Suizidverbots dazu, auch andere Probleme in Betracht zu ziehen. Sie führt nämlich erstens auf die wichtige Frage nach dem Verhältnis von Vernunft und Leben und zweitens auf Überlegungen zum Verhältnis von Natürlichkeit und Freiheit des Menschen, also direkt in die Anthropologie. (shrink)

The philosophy of history of 1804 and 1805 enables Fichte to place his natural right, developed previously at Jena, against a diachronic background. This means that Fichte does not reason merely synchronically from a timeless conception of society and state. From a synchronic viewpoint, Fichte cannot solve the problem of the control of political power because he has to draw on the assumption of a virtuous ephorate. This assumption is not consistent with the Fichtean ideal of a philosophy of right (...) completely independent from moral considerations. Thus, the control of government is possible only if at least a group of citizens can go beyond the mere rational egoism. This new temporal conception of the state leads Fichte to think that the problems of consistency of his theory of Jena are unavoidable, given that a society integrated by egoist individuals cannot be sustained. However, his later philosophy of history enables Fichte to state the inexorable annihilation of this type of community and gives place to an ensuing epoch, when citizens are not self-interested anymore. (shrink)

En este trabajo se estudia la concepción escotista del universal entendido como universallógico y accidente intencional, cuya función cognitiva se entiende como modo de aprehensión oconcepción de la esencia o naturaleza. El artículo se concentra en analizar las cuestiones 4 y 5 del comentario de Duns Escoto a la Isagoge. Se subraya la relación de los análisis escotistas con lateoría aviceniana del triple estatuto de la esencia sobre el telón de fondo de la teoría boeciana de los universales. Al final (...) del artículo se presenta brevemente el momento ontológico del universal tal comose puede ver en la teoría de la naturaleza común. (shrink)

In Aristotelian logic, categorical propositions are divided in Universal Affirmative, Universal Negative, Particular Affirmative and Particular Negative. Possible relations between two of the mentioned type of propositions are encoded in the square of opposition. The square expresses the essential properties of monadic first order quantification which, in an algebraic approach, may be represented taking into account monadic Boolean algebras. More precisely, quantifiers are considered as modal operators acting on a Boolean algebra and the square of opposition is represented by relations (...) between certain terms of the language in which the algebraic structure is formulated. This representation is sometimes called the modal square of opposition. Several generalizations of the monadic first order logic can be obtained by changing the underlying Boolean structure by another one giving rise to new possible interpretations of the square. (shrink)

Main description: Verbreitet ist die Auffassung, dass es vernünftig ist, moralisch zu handeln, weil es unvernünftig ist, gegen moralische Normen zu verstoßen. Gegen diese Ansicht vertritt der Autor die These, dass es immer vernünftigerweise erlaubt ist, moralisch zu handeln, dass aber im Falle eines Konflikts zwischen Klugheitsgründen und moralischen Normen sowohl die moralische als auch die unmoralische Handlungsweise vernünftigerweise erlaubt sind.

This article seeks to interrogate the moment of queer theory's ‘birth’ out of French influences, or what is designated by the umbrella term ‘French Theory’. It specifically points to the operations of transformation and dislocation, subversion and perversion of French theoretical influences at work in two distinctive ‘pairings’ of French ‘progenitor’ and American queer ‘offspring’: Jacques Derrida with Eve Kosofsky Sedgwick and Jacques Lacan with Judith Butler.

The aim of this article is to shed light on Kant’s anthropological theory of memory. I shall contrast physiological studies of memory against Kant’s own study. I suggest some ideas about the relation between memory and time, as long as memory has the power to store and reproduce the temporal configuration of our representations. Moreover, I deal with the problem of personal identity and I suggest that memory contributes to the possibility of this identity from a pragmatic point of view. (...) Finally, I hold that Kant’s pragmatic anthropology does not only provide a description of memory for the human being’s self-knowledge but also for the human being’s self-perfection. Thus, such description discloses not only what the human being is but also what this can become, insofar as it is capable of perfecting itself. (shrink)

Once hematopoiesis is established in the bone marrow, a continuous egress of hematopoietic stem cells (HSCs) to the periphery occurs at a low frequency. It has been proposed that this phenomenon is part of a regenerative homeostatic mechanism that ensures the maintenance of hematopoiesis through the life of the individual. The administration of certain cytotoxic drugs or cytokines can enhance the mobilization of hematopoietic progenitors to the periphery. During the past 15 years, granulocyte‐colony stimulating factor (G‐CSF) has been used as (...) a standard cytokine for mobilization protocols in experimental models and in humans. Despite extensive efforts by multiple groups, a definitive mechanism explaining its role in mobilization has not been provided. In a recent paper, Katayama et al.,1 through a series of clever associations supported by well‐defined experimental systems, proposed that signals through the sympathetic nervous system modify the activity of the hematopoietic niche, acting as regulators of the mobilization of hematopoietic progenitors. This surprising finding adds a new level of complexity to the cellular milieu responsible for generation and maintenance of the hematopoietic niche. BioEssays 28: 687–691, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

Amphioxus represents the most basally divergent group in chordates and probably the best extant proxy to the ancestor of all chordates including vertebrates. The amphioxus, or lancelets, are benthic filter feeding marine animals and their interest as a model in research is due to their phylogenetic position and their anatomical and genetic stasis throughout their evolutionary history. From the first works in the 19th century to the present day, enormous progress is made mainly favored by technical development at different levels, (...) from spawning induction and husbandry techniques, through techniques for studies of gene function or of the role of different signalling pathways through embryonic development, to functional genomics techniques. Together, these advances foretell a plethora of interesting developments in the world of research with the amphioxus model. Here, the author review the discovery and development of amphioxus as a superb model organism in evolutionary and evolutionary‐developmental biology. (shrink)