Hegel en toutes lettres n° 15 : Retour à Berlin…

Charles Bonnet, Lettres à M. l'Abbé Spallanzani

when Davis et al. in 1962, demonstrated the breakdown of ATP in a single tetanic contraction of a muscle treated with l-fluoro-2, 4-dinitrobenzene. Chapter 15 is devoted to rigor mortis. Preceded by chapters on the general history of respiration (Chapter 16) and of oxidative phosphorylation (Chapter 17), Chapter 18 is concerned with the regulation of carbohydrate metabolism for energy supply to...

Où en est-on de la dissipation du calcul? Retour à Bennett

Photodissociation dynamics of IBr À „ CO 2 ... n , n Ë 15

We report the ionic photoproducts produced following photoexcitation of mass selected IBr(CO2)n , n50 – 14, cluster ions at 790 and 355 nm. These wavelengths provide single state excitation to two dissociative states, corresponding to the A8 P1/2 and B 2 S1/2 1 states of the IBr chromophore. Excitation of these states in IBr leads to production of I1Br and Br1I*, respectively. Potential energy ...

De la cellule biologique à la cellule urbaine : retour sur trois expériences de modélisation multi-échelles à base d'agents

Simulating complex natural or social systems often implies to consider entitites at several levels of organisation, and take into account the way they influence each other. The choice of scales is driven by both methodological and thematic constraints which among others include the objects of significiance for the specialists, availability of relevant data for comparison, question of interest a...

Campus numériques. Retour sur une politique ambitieuse d'enseignement supérieur à distance

This paper deals with two main issues. First, it takes up a critical stance on the bid to modernize the higher education by resorting to the means provided by the open and distance learning. Then it goes back over the difficulties the implementation of this type of learning encounters within the university environment. Leaving aside the techno-pedagogical aspects so often referred to in order t...