Jean Lebrun, Notre Chanel

Jean - Paul Fermand and Jean - Claude Brouet

In the majority o f chronic lymphocytic leukemias (CLL), proliferative B lymphocytes are thought to be frozen in vivo at a given maturat ion stage (1). Recently, several studies have emphasized that CLL cells could be driven to different iate into plasma cells in vitro (with or without proliferation) upon t r iggering by mitogens (2, 3, 4) or T cel l -der ived factors (5, 6). Th u s far, howeve...

Notre Dame Precollege Program

Walter Somerville-notre ami britannique.

Le rapprochement entre les societes francaise et britannique de cardiologie que Walter Somerville a encourage de toute sa forte personnalite et qui s'est a plusieurs reprises concretise en depassant la simple "entente cordiale" pour devenir une solide amitie entre collegues cardiologues, qui n'ont plus ete separes ni par le Channel ni par la langue, m'inci;e a exprimer au President sortant de l...

WEYL CURVATURE , EINSTEIN METRICS , AND SEIBERG - WITTEN THEORY Claude LeBrun

We show that solutions of the Seiberg-Witten equations lead to nontrivial estimates for the L2-norm of the Weyl curvature of a compact Riemannian 4-manifold. These estimates are then used to derive new obstructions to the existence of Einstein metrics on smooth compact 4-manifolds with a non-zero Seiberg-Witten invariant. These results considerably refine those previously obtained [21] by using...

Characterizing task-oriented dialog using a simulated ASR chanel

We describe a data collection consisting of task-oriented human-human conversations in a simulated ASR channel in which the WER is systematically varied. We find that users infrequently give a direct indication of having been misunderstood; levels of expert “initiative” increase with WER primarily due to increased grounding activity; and asking task-related questions appears to be a more succes...