The scattering problem refers to the gossiping and the broadcasting problems 1,2]. It consists in distributing a set of data from a single source such that each component is destinated to a distinct address. The gathering operation is the reverse of the scattering operation. This paper studies the problem of pipelining a scattering-gathering sequence in order to overlap these operations. We rst...

We studied the angular resolution of the Pierre Auger Detector using data collected from January 2004 to May 2005. The detector consists of two independent components, the fluorescence detector and the surface detector. Hybrid events, observed simultaneously by both components, have smaller reconstruction uncertainties than the events observed with only one component. The hybrid resolution is e...

Two new xanthones, characterized as 4-(1,1-dimethylprop-2-enyl)-1,3,5,8-tetrahydroxyxanthone (1) and penangianaxanthone (2), with three known xanthones, cudratricusxanthone H (3), macluraxanthone C (4) and gerontoxanthone C (5), as well as friedelin and stigmasterol were isolated from the leaves of Garcinia penangiana. Their structures were elucidated by analysis of spectroscopic data and compa...

The Pierre Auger Observatory aims to discover the nature and origins of the 24 highest energy cosmic rays. The large number of physicists involved in the project and 25 the diversity of simulation and reconstruction tasks pose a challenge for the offline analysis 26 software, not unlike the challenges confronting software for very large high energy physics 27 experiments. Previously we have rep...

We present a new approach to path planning, called the \Ariadne's clew algorithm". It is designed to nd paths in high-dimensional continuous spaces and applies to robots with many degrees of freedom in static, as well as dynamic environments | ones where obstacles may move. The Ariadne's clew algorithm comprises two sub-algorithms, called search and explore, applied in an interleaved manner. ex...

Historical account of the early development of Fourier Transform Spectrometry at Laboratoire Aim£ Cotton under Pierre Jacquinot's leadership, over the

Compte rendu des Fick pics sous les étoiles (Pierre-André Doucet)

BACKGROUND The rhizomes of Dioscorea membranacea Pierre, also called Hua-Khao-Yen by Thai name, are used as ingredients in many Thai traditional medicines for the alternative or complementary treatment of cancer and AIDs. Preliminary in vitro studies have indicated that D. membranacea extracts exhibited high cytotoxic activity with several cancer cell lines, but the underlining mechanisms are f...

La premiere campagne de fouilles sur TQS remonte a 2014, dans le cadre d’un sauvetage suite une tranchee traversant tepe pour un pipeline mais aussi des illegales. Des sondages, dont l’un 200m2 ont livre vestiges d’architecture en pierre liees au mortier formant moins cinq salles rangee et d’autres l’autre cote couloir, quantite d’objets varies principalement domestiques metal pierre, ainsi que...

Hazaël Jones is with INRA and Cemagref, UMR ITAP, UMR ASB, place Pierre Viala 34060 Montpellier Cedex 1 FRANCE (phone: +33 499612070; email: [email protected]). Didier Dubois is with IRIT, CNRS & Université de Toulouse 118 Route de Narbonne 31062 Toulouse Cedex 09 (phone: +33 561556331; email: [email protected]). Serge Guillaume is with Cemagref UMR ITAP 361, rue JF Breton 34196 Montpellier Ce...