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Talks of 2015

  1. Theoretical principles for organisms and hormones

    • M Montévil
      .
    • en
    • Séminaire Laboratoire : Evolution des Régulations Endocriniennes
    • MNHN, Paris, France

    In this presentation we will discuss three theoretical principles for biology: the principle of organization, the principle of variation and the default state of cells. We will propose possible applications to understand hormone action.

  2. Historicity and organization


    We argue that a theory of biological systems should rely on organization and variation as fundamental theoretical principles. Biological systems are organized natural systems that undergo functional variation. In this presentation we will provide a specific characterization of each principle while …

  3. Colloque: Biodiversity Resilience


    La relation entre biodiversité, variabilité, adaptabilité et résilience des systèmes vivants, soumis aux perturbations imprédictibles caractéristiques des systèmes complexes, quelles que soient leurs échelles, doit être questionnée, même en l’absence de mécanismes causalistes identifiables. La rencontre…

  4. A novel framing principle for biology.


    Biophysical approaches to biological phenomena have provided fruitful insights, yet they generally suffer from the direct transposition of physical paradigms and methods in biology, without the deep justifications that exist in physics (as for the conservation of energy for example). In this context…

  5. From levels of organization to the organization of levels


    We propose a theoretical and formal way to account for the various levels of organization that biological systems may realize. Our key assumption is that levels of organization are to be understood as specific networks of interdependences among the functional constituents. More precisely, we will rely…

  6. Biological variability and physico-mathematical reasoning

    • M Montévil
      .
    • en
    • Workshop on approaches to variation and stability in contemporary biology
    • University of Sydney, Australia

    In this presentation, we will contrast the articulation between mathematics and phenomena that is performed in physical theorizing with the situation in biology.short, physical theorizing is grounded on stable mathematical structures, defined by theoretical symmetries and corresponding conservation…

  7. Theoretical principles for biology: organization and variation


    We argue that a theory of biological systems should rely on organization and variation as fundamental theoretical principles. Biological systems are organized natural systems that undergo functional variation. In this presentation we will provide a specific characterization of each principle while …

  8. Chemins vers une théorie des organismes


    L'observation de cellules en culture montre qu'elles prolifèrent, se meuvent, changent de forme... Confrontés à des contradictions entre leurs résultats expérimentaux et les cadres d’interprétations en vigueur (l'idée que les cellules d'un métazoaire sont quiescentes par défaut), Anna Soto et Carlos…

  9. L’individuation biologique, aspects conceptuels, aspects mathématiques


    Dans cette présentation, nous allons revenir sur une énigme : il n’y a pas d’explication possible en biologie sans enchevêtrement de niveaux. La relation entre les états d’un système et sa structure, qui permet en physique de déterminer un point de vue du système distinct de celui de l’observateur …