The paper describes the conceptual models used to understand the processes determining plant growth rates in response to environmental changes. A series of experiments and growth models were used at three organizational levels: the specific plant organs, the whole plant and the plant canopy. The energy conversion efficiency and the total plant carbon balance were first examined. The carbon partitioning amongst the plant parts was then studied. The energy conversion efficiency is generally understood. In modelling carbon partitioning it was first (...) necessary to establish the carbon demand for each plant organ. The carbon partitioned amongst plant organs was then calculated in two ways. The first one based on empirical data consisted in defining which organ received the carbon prior to other organs. The second one was based on the relationship between the carbon mass of specific organs and their trophic activity. This hypothesis allowed the optimization of the carbon partitioning in order to maximize the whole plant growth rate. The opportunities to use these theoretical approaches in plant growth modelling are discussed. (shrink)

Suggests an open system of psychological exploration to cut through accepted norms of morality, language, and politics.

This book, which presents Spinoza's main ideas in dictionary form, has as its subject the opposition between ethics and morality, and the link between ethical ...

Deleuze and Guattari differentiate between philosophy, science, and the arts - seeing each as a means of confronting chaos - and challenge the common view that philosophy is an extension of logic. The authors also discuss the similarities and distinctions between creative and philosophical writing. Fresh anecdotes from the history of philosophy illuminate this book, along with engaging discussions of composers, painters, writers, and architects.

For those not yet acquainted with the work of this philosopher, this book provides a point of entry to his complex theories. For those more familiar with Deleuze, this collection should be useful in broadening their understanding of this influential thinker's journey in search of knowledge.

Praised for its rare combination of scholarly rigor and imaginative interpretation, _Nietzsche and Philosophy_ has long been recognized as one of the most important analyses of Nietzsche. It is also one of the best introductions to Deleuze's thought, establishing many of his central philosophical positions. In _Nietzsche and Philosophy_, Deleuze identifies and explores three crucial concepts in Nietzschean thought-multiplicity, becoming, and affirmation-and clarifies Nietzsche's views regarding the will to power, eternal return, nihilism, and difference. For Deleuze, Nietzsche challenged conventional philosophical (...) ideas and provided a means of escape from Hegel's dialectical thinking, which had come to dominate French philosophy. He also offered a path toward a politics of difference. In this new edition, Michael Hardt's foreword examines the profound influence of Deleuze's provocative interpretations on the study of Nietzsche, which opened a whole new avenue in postwar thought. (shrink)

Considered one of the most important works of one of France's foremost philosophers, and long-awaited in English, "The Logic Of Sense" is an essay in literary and psychoanalytic theory, and philosophy, and helps to illuminate such works as "Anti-Oedipus".

Il faudrait que le dialogue se fasse, non pas entre des personnes, mais entre les lignes, entre des chapitres ou des parties de chapitre. Ce seraient les vrais personnages. Perdre la mémoire : il faudrait plutôt dresser des " blocs ", les faire flotter. Un bloc d'enfance n'est pas un souvenir d'enfant. Un bloc nous accompagne, est toujours anonyme et contemporain, et fonctionne dans le présent - Oublier l'histoire : la question des devenirs, et de leur géographie. Un devenir-révolutionnaire est (...) plus important que l'avenir ou le passé de la révolution. Un devenir-femme, un devenir-animal sont plus importants que la différence des sexes et des règnes - Ne pas " faire le point " : plutôt tracer des lignes. Les lignes n'ont pas d'origine, et poussent par le milieu. On ne fait jamais table rase, on est toujours au milieu de quelque chose, comme l'herbe. Plus on prend le monde là où il est, plus on a de chance de le changer... Se séparer de l'appareil d'Etat et de tout système qui le prend pour modèle ou veut le conquérir : la présence diffuse de machines de guerre irréductibles au modèle d'Etat, toute une histoire populaire qui n'a pas été recueillie, un nomadisme même immobile. Devenir ou re-devenir marxiste : aucune analyse n'est possible si elle ne porte aussi sur les mécanismes industriels et surtout financiers dans un champ social. Non pas suprême instance, mais lignes, et régimes de signes, qui s'enchaînent avec les autres, et dont les flottaisons s'agencent avec d'autres flux. (shrink)

This brilliant exposition of the critique of identity is a classic in contemporary philosophy and one of Deleuze's most important works. Of fundamental importance to literary critics and philosophers,Difference and Repetition develops two central concepts—pure difference and complex repetition&mdasha;and shows how the two concepts are related. While difference implies divergence and decentering, repetition is associated with displacement and disguising. Central in initiating the shift in French thought away from Hegel and Marx toward Nietzsche and Freud, _Difference and Repetition_ moves deftly (...) to establish a fundamental critique of Western metaphysics. (shrink)

A critical examination of the figure of Oedipus in psychoanalysis and Western culture as it relates to the history of society and capitalism.

L’objectif de l’article est de proposer une théorie de l’engagement psychologique dans le langage. C’est-à-dire de présenter une vue systématique de l’implication de la psyché des sujets parlants dans leur accomplissement d’actes de langage ou encore de ce à quoi ils sont assujettis sur le plan psychologique quand ils parlent. Cette théorie a la forme d’une série de thèses chacune relative à un trait spécifique de la performance langagière. Prenant appui sur la philosophie du langage de John Searle et Daniel (...) Vanderveken, elle est élaborée à partir d’une notion originale d’engagement à avoir des états mentaux.The aim of this article is to propose a theory of the psychological commitment in the language. In other words, it is to present a systematic view of how the mental states of the speakers are present in their performance of speech acts, of what are the psychological states to the possession of which the speakers are committed when they speak. This theory is based on several thesis, each of which is about a specific aspect of the performance of speech acts. It is proposed in the perspective of the philosophy of language of John Searle and Daniel Vanderveken on the basis of an original concept of commitment to have mental states. (shrink)

A criticism of the book "a la recherche du temps perdu".

Threat-related stimuli can capture attention. However, it remains debated whether this capture is automatic or not. To address this question, we compared attentional biases to emotional faces using a dot-probe task (DPT) where emotion was never goal-relevant (Experiment 1) or made directly task-relevant by means of induction trials (Experiments 2–3). Moreover, the contingency between the DPT and induction trials was either partial (Experiment 2) or full (Experiment 3). Eye-tracking was used to ascertain that the emotional cue and the subsequent target (...) were processed with peripheral vision. Experiments 1 and 2 both showed that negative faces captured attention, with faster target processing when it appeared on the same side as the preceding fearful face (i.e. fear-valid trials) compared to the opposite side where the neutral face was shown (i.e. fear-invalid trials), but also when it appeared on the side of the preceding neutral face (i.e. happy-invalid trials) compared to the happy face (i.e. happy-valid trials). Importantly, this preferential spatial orienting to negative emotion was not observed in Experiment 3, where the goal relevance of emotion was high. However, in that experiment, fearful faces produced a specific attentional bias during the DPT, which was mostly driven by the induction trials themselves. (shrink)

Conceptual integration—“blending”—is a general cognitive operation on a par with analogy, recursion, mental modeling, conceptual categorization, and framing. It serves a variety of cognitive purposes. It is dynamic, supple, and active in the moment of thinking. It yields products that frequently become entrenched in conceptual structure and grammar, and it often performs new work on its previously entrenched products as inputs. Blending is easy to detect in spectacular cases but it is for the most part a routine, workaday process that (...) escapes detection except on technical analysis. It is not reserved for special purposes, and is not costly.In blending, structure from input mental spaces is projected to a separate, “blended” mental space. The projection is selective. Through completion and elaboration, the blend develops structure not provided by the inputs. Inferences, arguments, and ideas developed in the blend can have effect in cognition, leading us to modify the initial inputs and to change our view of the corresponding situations.Blending operates according to a set of uniform structural and dynamic principles. It additionally observes a set of optimality principles. (shrink)

The following text is not just unpublished. There is something intimate, secret, confidential about it. It consists of a series of notes - classed from A to H - that Gilles Deleuze had entrusted to me in order that I give them to Michel Foucault. It was in 1977. Foucault had just published La Volonté de savoir, the introduction to a Histoire de la Sexualité which challenged the play of categories through which the struggles of sexual liberation reflected itself. (...) The reception of the book, poorly understood, was contemporary with a sort of crisis in Foucault, already wholly bent to the task of bringing out of himself, and converting himself to, what would become the problematic of L'usage de plaisirs and the Souci de soi. Gilles Deleuze, sensitive to what he perceives as a suffering in his friend, thus writes up these notes: therein he gives the account of his convergences and divergences with Foucault. It is not a matter of a critique, even less of a polemic, but of an invitation, entirely imbued with the sincerity of friendship, to take up again a dialogue which had been interrupted. (shrink)

Pour Aristote, si la vertu ne naît pas naturellement en l'homme, néanmoins celui-ci est par sa nature même prédisposé à l'acquérir, dans la mesure où il appartient à chacun de la cultiver par de bonnes habitudes de vie et de la concrétiser dans des actes. Aussi, par son comportement vertueux, l'homme a-t-il la possibilité d'accomplir dans l'action ce qui lui convient le mieux et ce qui profite à la Cité. En l'occurrence, il ne s'agit pas de viser le bien en (...) soi mais de se montrer capable de faire du bien. (shrink)

B. Lévy procède à la lecture de "Visage continu" de Levinas et met en lumière l'arrière-fond d'intuitions préphilosophiques qui est nécessaire au déploiement de sa philosophie. La philosophie implique autre chose qu'elle-même, c'est là que réside toute la tension de la pensée lévinassienne.

We define a generic notion of cut that applies to many first-order theories. We prove a generic cut elimination theorem showing that the cut elimination property holds for all theories having a so-called pre-model. As a corollary, we retrieve cut elimination for several axiomatic theories, including Church's simple type theory.

Le pli a toujours existé dans les arts, mais le propre du Baroque est de porter le pli à l'infini. Si la philosophie de Leibniz est baroque par excellence, c'est parce que tout se plie, se déplie, se replie. Sa thèse la plus célèbre est celle de l'âme comme " monade " sans porte ni fenêtre, qui tire d'un sombre fond toutes ses perceptions claires : elle ne peut se confondre que par analogie avec l'intérieur d'une chapelle baroque, de marbre (...) noir, où la lumière n'arrive que par des ouvertures imperceptibles à l'observateur du dedans : aussi l'âme est-elle pleine de plis obscurs. Pour découvrir un néo-Baroque moderne, il suffit de suivre l'histoire du pli infini dans tous les arts : " pli selon pli " avec la poésie de Mallarmé et le roman de Proust, mais aussi l'œuvre de Michaux, la musique de Boulez, la peinture de Hantaï. Et ce néoleibnizianisme n'a cessé d'inspirer la philosophie. (shrink)

Le langage est, pour l'homme, a la fois outil et objet. Philosopher sur le langage, c'est donc s'interroger a la fois sur les formes et les limites de son pouvoir, st sur l'etrange nature de cette realite exterieure a nous et dont nous ne pouvons pourtant dissocier ce que nous appelons notre pensee. L'auteur, par inclination personnelle et non point par principe, choisit d'orienter son enquete selon le point de vue de la connaissance scientifique. Ainsi se propose-t-il d'abord de definir (...) le role que joue le langage dans la constitution de la science. Il est alors conduit a examiner les pseudo-langages que celle-ci se construit, et, en precisant la fonction du symbolisme dans la connaissance objective, il met en lumiere, dans ce domaine, le privilege et l'infirmite des langues naturelles. C'est alors cette notion de langue naturelle qui devient le theme de sa reflexion : le linguiste en veut faire l'objet d'une science. Comment determine-t-il cet objet, par quelles demarches parvient-il a sa connaissance, qu'est-ce enfin qu'une " science du langage "? Sur cette science, encore aujourd'hui peut-etre a l'etat naissant, le philosophe ne peut faire de pronostics. Du moins lui appartient-il, en dehors des querelles d'ecoles, de tenter de reconnaitre jusqu'ou l'on s'est avance dans la voie du savoir. (shrink)

Considered one of the most important works of one of France's foremost philosophers, and long-awaited in English, The Logic of Sense begins with an extended exegesis of Lewis Carroll's Alice in Wonderland. Considering stoicism, language, games, sexuality, schizophrenia, and literature, Deleuze determines the status of meaning and meaninglessness, and seeks the 'place' where sense and nonsense collide. Written in an innovative form and witty style, The Logic of Sense is an essay in literary and psychoanalytic theory as well as philosophy, (...) and helps to illuminate such works as Anti-Oedipus. (shrink)

L’auteur a déjà introduit les concepts de “contenu formel” et “dualité” dans des publications antérieures, avec l’intention d’éclairer les problèmes suscités par la fécondité de la pensée formelle. Cet article a pour objectif d’établir leur relation et articulation. Le terme “dualité” est emprunté aux mathématiques. Il désigne une catégorie fondamentale de la pensée objective, dans la mesure où il est défini comme un principe de détermination réciproque pour n’importe quel système d’objets et le système d’opérations auquel il est nécessairement associé. (...) Son caractère fundamental en tant que catégorie tient essentiellement au fait d’être une condition transcendentale pour n’importe quelle espèce de pensée symbolique objective. Par le principe de dualité, on peut établir de façon générale la signification de l’opposition du contenu et de la forme, et celle de la détermination des contenus par de simples formes, indépendemment de leur origine empirique. La forme logique est alors définie comme le “degré zéro” d’une telle opposition. Des exemples de production de contenus formels dans les processus scientifiques sont examinés et considérés comme des preuves d’une dialectique interne des concepts, principalement dans le domaine des mathématiques. Dans la conclusion, nous proposons l’examen de deux questions : 1) Est-il approprié de concevoir un niveau de pensée formelle plus profond que celui de la Logique, et comment pourrions-nous y accéder? 2) Comment des contenus purement formels peuvent-ils produire des connaissances applicables au monde empirique ? Ce problème n’est qu’une nouvelle formulation de la vieille énigme de la déduction transcendentale.The author has introduced the concepts of “formal content” and “duality” in previous papers, with a view to shedding light on the problems posed by the fecundity of formal thought. The present work is an attempt to show their relationship and articulation. The term “duality” has been borrowed from mathematics. It designates a fundamental category of objective thinking, in so far as it is defined as a principle of reciprocal determination for every system of objects and the system of operations to which it is necessarily associated. The fundamental character of duality as a category essentially lies in its being a transcendental condition for every symbolic kind of objective thought. Through the principle of duality, one can give its more general meaning to the opposition of content to form, and to the determination of contents by mere forms, independent of empirical import. Logical form is then defined as the “zero degree” of such an opposition. Examples of the production of formal contents in scientific processes are examined, and considered as evidence of an internal dialectics of concepts, principally in the field of mathematics. In the conclusion, two questions are proposed: 1) Is it appropriate to conceive of a level of formal thought, deeper than the level of Logics, and how could we try to approach it? 2) How do pure formal contents come to generate knowledge applicable to the empirical world? This problem is, under new guise, the old transcendental deduction enigma. (shrink)

ABSTRACTNegative emotion influences cognitive control, and more specifically conflict adaptation. However, discrepant results have often been reported in the literature. In this study, we broke down negative emotion into integral and incidental components using a modern motivation-based framework, and assessed whether the former could change conflict adaptation. In the first experiment, we manipulated the duration of the inter-trial-interval to assess the actual time-scale of this effect. Integral negative emotion was induced by using loss-related feedback contingent on task performance, and measured (...) at the subjective and physiological levels. Results showed that conflict-driven adaptive control was enhanced when integral negative emotion was elicited, compared to a control condition without changes in defensive motivation. Importantly, this effect was only found when a short, as opposed to long ITI was used, suggesting that it had a short time scale. In the second experiment, we controlled for effe... (shrink)

Tous deux résistants, Cavaillès et Lautmann ont été fusillés par les Allemands.Ils étaient l’un et l’autre « philosophes des mathématiques », mais leur réflexion proprement philosophique porte sur les rapports des mathématiques et de la logique, et, plus généralement, sur la pensée formelle.À la notion lautmanienne de « dialectique » mathématique, s’oppose – ou du moins se juxtapose –, du côté de Cavaillès, l’idée de la nécessité interne d’une histoire des concepts.Both resisting during WWII, Cavaillès et Lautmann were shot by (...) the Germans.Both were « philosophers of maths » but their true philosophical thoughts deal with the relationships between mathematics and logics and, more specifically, with formal thought.To the Lautmanian reflection on mathematical « dialectics », Cavaillès opposes – or rather, juxtaposes – the idea of an internal necessity of a history of concepts. (shrink)

" Le vieux fascisme si actuel et puissant qu'il soit dans beaucoup de pays, n'est pas le nouveau problème actuel. On nous prépare d'autres fascismes. Tout un néo - fascisme s'installe par rapport auquel l'ancien fascisme fait figure de folklore [...]. Au lieu d'être une politique et une économie de guerre, le néo - fascisme est une entente mondiale pour la sécurité, pour la gestion d'une " paix " non moins terrible, avec organisation concertée de toutes les petites peurs, de (...) toutes les petites angoisses qui font de nous autant de microfascistes, chargés d'étouffer chaque chose, chaque visage, chaque parole un peu forte, dans sa rue, son quartier, sa salle de cinéma. " Gilles Deleuze, février 1977. (shrink)

The development and utility of genetically modified crops for smallholders around the world is controversial. Critical questions include what traits and crops are to be developed; how they can be adapted to smallholders’ ecological, social and economic contexts; which dissemination channels should be used to reach smallholders; and which policy environments will enable the greatest benefits for smallholders and the rural poor. A key question is how the voices of smallholders who have experience with or desire to use GM technologies (...) enter the larger debate. Africa has the greatest number of smallholders and poor with the least exposure to GM crops. Because of the well-established use of GM crops in South Africa by commercial farmers, we formed a community of practice involving smallholders, extension, researchers, non-profits and agribusiness in KwaZulu-Natal to examine the conditions under which GM crops are used by smallholders, how smallholders interact with GM technologies and what insights smallholders and other stakeholders can provide regarding these questions. One of the advantages of the CoP approach is that it brings stakeholders together in a non-hierarchical way that encourages new ways of thinking and new partnerships. Such interaction around a specific project can enhance the voice of smallholders in a variety of ways. In our project, smallholder participants have increased their knowledge and can make better decisions about GM technologies, which had been barriers for them. Notably, they have also improved their knowledge of maize production practices, accessed new practice networks, and met new researchers and resource providers. They are now being integrated into these networks in a way that should improve their livelihoods and make the wants and needs of smallholders better known. Such knowledge and experience has improved their voice in agriculture and rural development discussions. (shrink)