La sialoceleparotidienneestune complication mecanique rare des plaiespost-traumatiques de la face, souventpasseeinapercuedevant le caracterehemorragique plaiesfaciales. Elles doivent etre connues et prevenuesinitialement car leurprise en charge secondaireestcompliquee. Le detournement du flux salivaire dans cavitebuccale par catheterisme partiedistale canal parotidien à travers sialocele, utili...

Rigid body models with two controls cannot be locally asymptotically stabilized by continuous feedbacks which are functions of the state only. However, this impossibility does no longer hold when the feedback is also a function of time, and explicit smooth time-varying feedbacks which locally asymptotically stabilize the attitude of a rigid spacecraft have previously been proposed by the author...

We relate the problem of computing the closure of a nitely generated subgroup of the free group in the pro-V topology, where V is a pseudovariety of nite groups, with an extension problem for inverse automata which can be stated as follows: given partial one-to-one maps on a nite set, can they be extended into permutations generating a group in V? The two problems are equivalent when V is exten...

We give a new proof that all external rays of the Mandelbrot set at rational angles land, and of the relation between the external angle of such a ray and the dynamics at the landing point. Our proof is di erent from the original one, given by Douady and Hubbard and re ned by Lavaurs, in several ways: it replaces analytic arguments by combinatorial ones; it does not use complex analytic depende...

Vijay-Shanker and Weir have shown in 19] that Tree Adjoining Grammars and Combinatory Categorial Grammars can be transformed into equivalent Linear Indexed Grammars (LIGs) which can be recognized in O(n 6) time using a Cocke-Kasami-Younger style algorithm. This paper exhibits another recognition algorithm for LIGs, with the same upper-bound complexity, but whose average case behaves much better...

Alpha is a data parallel functional language which has the capability of specifying algorithms at a very high level. Our ultimate objective is to generate eecient parallel imperative code from an Alpha program. In this paper, we discuss the related problem of generating eecient single processor imperative code. Analysis techniques that were developed for the synthesis of systolic arrays are ext...

In this short note we discuss the distribution of synchronous programs on distributed, asynchronous architecture of the type preferred for embedded real-time control applications. In such architectures, no global clock is broadcast. Instead, the bus, as well as its users are triggered by local periodic clocks. To improve fault-tolerance and robust-ness, these clocks are not synchronized, neithe...

We describe an action principle, within the framework of Eddington gravity, which incorporates matter fields in a simple manner. Interestingly, gravitational field equations derived from this is identical to Einstein's equations, contrast with earlier attempts literature. The cosmological constant arises as integration approach. In fact, derivation demands existence nonzero constant, thereby pr...

En suivant le fil conducteur du concept de virtualite dans la pensee derridienne, cet article montre comment, chez Derrida, tout acte politique peut etre pense comme un virtuel. La deconstruction a partir des Spectres Marx (1993) permet d’abord comprendre differemment son irruption Otobiographies (1984), contemporaines Seminaire vie mort recemment publie (2019) lequel on en retrouve chapitre 2 ...

Le chorioangiome placentaire est une tumeur vasculaire benigne non trophoblastique retrouvee dans environ1 % des examens histologiques placentaires systematiques. La majorite? de ces tumeurs sont petite taille et sans aucun retentissement fœtomaternel. Ses complications maternelles fœtales peuvent etre sevères les cas chorioangiomes geants symptomatiques (> 4 cm) dont la frequence estimee...