Herein we examine the theory and practical limits of designing a voluntary incentive scheme to protect endangered species on private land. We consider both an ay-ante scheme, in which a contract to the landholder depends only on what the landholder reports, and an ay-post scheme, in which a contract to the landholder depends on reports from all landowners. Except in special cases, the ex-ante scheme never implements the full information allocation, and can actually set aside too much land. In contrast, (...) expected habitat size under the ex-post scheme is smaller than both the ex-ante and full information allocations. (C) 2001 Elsevier Science (USA). (shrink)

Geannoteerde briefwisseling van de twee geleerden over het vraagstuk van de evolutie.

A novel conceptual framework is introduced for the Complexity Levels Theory in a Categorical Ontology of Space and Time. This conceptual and formal construction is intended for ontological studies of Emergent Biosystems, Super-complex Dynamics, Evolution and Human Consciousness. A claim is defended concerning the universal representation of an item’s essence in categorical terms. As an essential example, relational structures of living organisms are well represented by applying the important categorical concept of natural transformations to biomolecular reactions and relational structures that (...) emerge from the latter in living systems. Thus, several relational theories of living systems can be represented by natural transformations of organismic, relational structures. The ascent of man and other living organisms through adaptation, is viewed in novel categorical terms, such as variable biogroupoid representations of evolving species. Such precise but flexible evolutionary concepts will allow the further development of the unifying theme of local-to-global approaches to highly complex systems in order to represent novel patterns of relations that emerge in super- and ultra-complex systems in terms of compositions of local procedures. Solutions to such local-to-global problems in highly complex systems with ‘broken symmetry’ might be possible to be reached with the help of higher homotopy theorems in algebraic topology such as the generalized van Kampen theorems (HHvKT). Categories of many-valued, Łukasiewicz-Moisil (LM) logic algebras provide useful concepts for representing the intrinsic dynamic ‘asymmetry’ of genetic networks in organismic development and evolution, as well as to derive novel results for (non-commutative) Quantum Logics. Furthermore, as recently pointed out by Baianu and Poli (Theory and applications of ontology, vol 1. Springer, Berlin, in press), LM-logic algebras may also provide the appropriate framework for future developments of the ontological theory of levels with its complex/entangled/intertwined ramifications in psychology, sociology and ecology. As shown in the preceding two papers in this issue, a paradigm shift towards non-commutative, or non-Abelian, theories of highly complex dynamics—which is presently unfolding in physics, mathematics, life and cognitive sciences—may be implemented through realizations of higher dimensional algebras in neurosciences and psychology, as well as in human genomics, bioinformatics and interactomics. (shrink)

An overview of the following three related papers in this issue presents the Emergence of Highly Complex Systems such as living organisms, man, society and the human mind from the viewpoint of the current Ontological Theory of Levels. The ontology of spacetime structures in the Universe is discussed beginning with the quantum level; then, the striking emergence of the higher levels of reality is examined from a categorical—relational and logical viewpoint. The ontological problems and methodology aspects discussed in the first (...) two papers are followed by a rigorous paper based on Category Theory, Algebraic Topology and Logic that provides a conceptual and mathematical basis for a Categorical Ontology Theory of Levels. The essential links and relationships between the following three papers of this issue are pointed out, and further possible developments are being considered. (shrink)

This collection of new essays locates Boethius' Consolatio Philosophiae in the medieval context of Latin learning and vernacular translations. The first part is devoted to the Latin commentary tradition, while the other parts explore the vernacular traditions.

We present a pole expansion for the propagators in the framework of normalized quantum electrodynamics and compare it with the more canonical results from S-matrix theory.

In this study, complex dynamics of Briggs–Rauscher reaction system is investigated analytically and numerically. First, the Briggs–Rauscher reaction system is reduced into a new nonlinear parametric oscillator. The Melnikov method is used to derive the condition of the appearance of horseshoe chaos in the cases ω = Ω and ω ≠ Ω. The performed numerical simulations confirm the obtained analytical predictions. Second, the prediction of coexisting attractors is investigated by solving numerically the new nonlinear parametric ordinary differential equation via the (...) fourth-order Runge–Kutta algorithm. As results, it is found that the new nonlinear chemical system displays various coexisting behaviors of symmetric and asymmetric attractors. In addition, the system presents a rich variety of bifurcations phenomena such as symmetry breaking, symmetry restoring, period doubling, reverse period doubling, period-m bubbles, reverse period-m bubbles, intermittency, and antimonotonicity. On the contrary, emerging chaotic band attractors and period-1, period-3, period-9, and period-m bubbles routes to chaos occur in this system. (shrink)

A novel conceptual framework is introduced for the Complexity Levels Theory in a Categorical Ontology of Space and Time. This conceptual and formal construction is intended for ontological studies of Emergent Biosystems, Super-complex Dynamics, Evolution and Human Consciousness. A claim is defended concerning the universal representation of an item’s essence in categorical terms. As an essential example, relational structures of living organisms are well represented by applying the important categorical concept of natural transformations to biomolecular reactions and relational structures that (...) emerge from the latter in living systems. Thus, several relational theories of living systems can be represented by natural transformations of organismic, relational structures. The ascent of man and other living organisms through adaptation, is viewed in novel categorical terms, such as variable biogroupoid representations of evolving species. Such precise but flexible evolutionary concepts will allow the further development of the unifying theme of local-to-global approaches to highly complex systems in order to represent novel patterns of relations that emerge in super- and ultra-complex systems in terms of compositions of local procedures. Solutions to such local-to-global problems in highly complex systems with ‘broken symmetry’ might be possible to be reached with the help of higher homotopy theorems in algebraic topology such as the generalized van Kampen theorems (HHvKT). Categories of many-valued, Łukasiewicz-Moisil (LM) logic algebras provide useful concepts for representing the intrinsic dynamic ‘asymmetry’ of genetic networks in organismic development and evolution, as well as to derive novel results for (non-commutative) Quantum Logics. Furthermore, as recently pointed out by Baianu and Poli (Theory and applications of ontology, vol 1. Springer, Berlin, in press), LM-logic algebras may also provide the appropriate framework for future developments of the ontological theory of levels with its complex/entangled/intertwined ramifications in psychology, sociology and ecology. As shown in the preceding two papers in this issue, a paradigm shift towards non-commutative, or non-Abelian, theories of highly complex dynamics—which is presently unfolding in physics, mathematics, life and cognitive sciences—may be implemented through realizations of higher dimensional algebras in neurosciences and psychology, as well as in human genomics, bioinformatics and interactomics. (shrink)

In both continental and analytical philosophy, social ontology has emerged as a particularly lively and increasingly sophisticated area of debate. This essay explores the potential contribution that social-ontological thinking can make to the continued development of critical theory via a critical reading of Georg Lukács and the Possibility of Critical Social Ontology – a collection of essays edited by Michael J. Thompson and published by Brill as part of the Studies in Critical Social Sciences series. The essay argues that whilst (...) social ontology as such no doubt offers a fruitful avenue for contemporary critical theory, the later philosophy of Georg Lukács represents an untenable and antiquated theoretical resource for such endeavours. The conceptual and systematic barriers to the revitalisation of the late Lukács are explored with specific reference to Lukács’ specific interpretation of the paradigm of labour and, closely related to this, his philosophy of history. (shrink)

ABSTRACT On 19 July 2019, Agnes Heller died whilst swimming in Lake Balaton outside Budapest. With her passing, the culture of humanity lost one of its most remarkable representatives. So too, contemporary critique lost a philosophical sensibility that is, today, within the neoliberal university, increasingly rare. It is this philosophical sensibility with which this essay is concerned. Through a critical reconstruction of Heller’s reading of three key figures from the philosophical tradition (Marx, Pascal and Kierkegaard), this essay both charts the (...) changes and continuities in Heller’s philosophy of concrete subjectivity and makes a case for its continuing relevance to the cultural project of philosophy. (shrink)

Avez-vous remarqué que dans le monde tout ce qui compte va par quatre? La musique : timbre, harmonie, rythme et mélodie. Le repérage : altitude, latitude, longitude et datation. Les quatre aspects de la cause: pour quoi, avec quoi, par quoi et selon quoi? Les forces de la nature : interactions faible, forte, électromagnétique et gravitationnelle... Les vingt-quatre particules élémentaires qui constituent la matière une famille de six leptons associée à trois familles de quarks. Et aussi la logique d'un discours (...) nuancé : oui, non, oui et non, ni oui ni non. Pourquoi quatre est-il partout? La notion de quaternité apporte une réponse à la fois simple et surprenante à cette question. A partir d'exemples tirés de l'expérience humaine, les auteurs en dégagent les aspects structurels et s'en servent pour approfondir le sens des mathématiques et de divers autres domaines liés à la genèse de la connaissance. Il s'agit d'une nouvelle épistémologie, fondée sur un modèle logique qui complète celui d'Aristote. (shrink)

Intro -- Title -- Contents -- Publisher's Acknowledgment -- Introduction -- Madhyamaka's Promise as Philosophy -- 1. Trying to Be Fair -- 2. How Far Can a Mādhyamika Reform Customary Truth? Dismal Relativism, Fictionalism, Easy-Easy Truth, and the Alternatives -- Logic and Semantics -- 3. How Do Mādhyamikas Think? Notes on Jay Garfield, Graham Priest, and Paraconsistency -- 4. "How Do Mādhyamikas Think?" Revisited -- 5. Prasaṅga and Proof by Contradiction in Bhāviveka, Candrakīrti, and Dharmakīrti -- 6. Apoha Semantics: What (...) Did Bhāviveka Have to Do with It? -- 7. What Happened to the Third and Fourth Lemmas in the Tibetan Madhyamaka? -- Ethics and the Spiritual Path -- 8. Madhyamaka Buddhist Ethics -- 9. Reason, Irrationality, and Akrasia (Weakness of the Will) in Buddhism: Reflections upon Śāntideva's Arguments with Himself -- 10. Yogic Perception, Meditation, and Enlightenment: The Epistemological Issues in a Key Debate between Madhyamaka and Chan -- Madhyamaka in Contemporary Debates -- 11. On Minds, Dharmakīrti, and Madhyamaka -- 12. Serious, Lightweight, or Neither: Should Madhyamaka Go to Canberra? -- Notes on the Articles -- Abbreviations -- Bibliography -- Index -- About the Author -- Studies in Indian and Tibetan Buddhism Titles Previously Published -- About Wisdom Publications -- Copyright. (shrink)