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Conference: 1st International Conference on Mapping and Spatial Analysis of Socio-Economic and Environmental Indicators for the Local and Regional Sustainable Development (SEE GEOMATICS)Location: Tataouine, TUNISIADate: MAR 25-26, 2015; International audience; For mapping the three-dimensional shape of the submarine bars, studying their dynamics and assessing the spatiotemporal evolution of sedimentary balances, the coastal prism of Korba (emerged and submerged beach) has benefitted from topo-bathymetric monitoring. This monitoring was carried out on an annual basis between July 2006 and July 2009. Numerical Terrain Models (N.T.M.) and transverse profiles were then analyzed. The main results show, firstly, that the shoreface of Korba is characterized by a homogeneous evolution across all profiles of its two-bar system. Moreover, the extent of changes in the sand volume of the beach suggests that the evolution takes place without significant sedimentary loss and that the beach is in a dynamic equilibrium. Accretion of the bars and migration towards the shore are found in periods of small waves (between July 2006 and July 2007). However, following a period of minor agitations, a filling of the outer trough is observed. It is proceeded by the migration of the outer bar towards the coast (between July 2007 and July 2009). These results confirm the traditional model of self-organization of a barred beach. These data and results, then, allow us to establish conceptual models and simulations of the evolution of the microtidal, barred beach of Korba.

International audience; This chapter illustrates the claim that Chinese L1 speakers acquiring French as an L2 may face a double challenge stemming from their previous experience of a language without grammatical tense. For these learners, the process of ascertaining the temporal value of French tenses as well as their aspectual values may be hindered by negative transfer from the L1. This chapter starts with a brief description of the tense-aspect system of French and Mandarin Chinese, highlighting the main differences between them; it then presents analyses and results from a study based on narrative stretches relating to past situations extracted from the blogs written by the participants. We claim that French present tense is often used as a neutral form by Chinese L1 speakers, rather than being a default or base form typical of lower L2 proficiency. Arguments supporting this claim are based both on comparative linguistic descriptions and on semantic analyses of the learner’s productions, taking into account the interaction of lexical aspect and overt tense marking. The chapter ends with a discussion of the results weighing the explicative power of the transfer hypothesis as opposed to universalist hypotheses.

Part 7: Digital Governance; International audience; Infrastructural development is a significant determinant of economic growth. It remains an elusive pursuit for many developing economies suffering from public infrastructural project failures. Although the causes of these failures are identifiable, they remain persistent. Government corruption has been identified as the primary cause of project failures amidst a host of other causal factors, spurred by the ambiguity in public service administration. These factors heighten capital expenditures and hence, the need for more transparent systems in public infrastructural project planning and -delivery. This research uses a case-study methodology to examine the importance of public involvement in addressing the causes of failures in public infrastructural project planning and -delivery. Using Nigeria as a case, the findings from conducted interviews and a document review support the proposition of a technologically collaborative approach in addressing the causes of public infrastructural project failures. The institutionalization of transparency-enhancing blockchain systems are vital in government and public involvement in the processes of public infrastructural project planning and -delivery.

Colloque "Mobilités Marginales, Mobilités dans les marges, Marges Mobiles", Champs-sur-Marne, France, 16-/11/2016 - 18/11/2016; Souvent définie en creux, comme une absence de déplacement un jour donné, l'immobilité est considérée comme une contrepartie logique de la mobilité quotidienne. Le mobility turn (ou tournant mobilitaire) issu des travaux de J. Urry tend même à faire de l'immobilité une forme de mobilité comme une autre, comme en témoignerait la mise en parenthèse du préfixe im-. Au-delà de ces considérations, l'immobilité quotidienne est aussi et souvent vue comme témoin ou marqueur d'inégalités sociales, une pratique de "dominés", ceux qui ne se déplacent pas étant souvent considérés comme plus isolés, voire exclus de la société, que ceux qui se déplacent. Pourtant, l'immobilité reste une grande inconnue dans la mesure où peu d'études s'y intéressent de façon spécifique. Au-delà d'une analyse en creux (un non déplacement) et de la mise en évidence de déterminants attendus (dépendance et handicap, inactivité, etc.), on ne sait pas grand-chose sur l'immobilité quotidienne. Ainsi, les liens entretenus avec les pratiques de déplacement des autres jours, celles d'autres personnes, voire des interactions plus virtuelles, et les pratiques d'immobilités sont moins investigués. Néanmoins, l'immobilité est loin d'être anecdotique. Même si mesurée sur une seule journée, l'immobilité n'est que de 15% en France. Une analyse sur plusieurs jours réÏle que près d'un tiers des individus connaissent un épisode d'immobilité au cours des cinq derniers jours ouvrés. Dans un autre pays et un autre contexte comme le Brésil, l'immobilité sur une seule journée concerne même 40% de la population. Dans ces conditions il parait pertinent de réinterroger les déterminants de l'immobilité pour comprendre ce phénomène social.Basée sur des réflexions tant théoriques qu'empiriques, la communication aura pour objectif de mieux cerner l'immobilité en tant que pratique à part entière et de voir en quoi elle constitue un marqueur d'inégalités socio-spatiales. La partie plus théorique s'appuiera sur une revue étendue et pluridisciplinaire de la littérature. La partie plus empirique mettra en perspective des résultats quantitatifs obtenus en France avec ceux de deux autres pays, le Royaume-Uni et le Brésil. L'analyse du terrain britannique permettra de réÎler les pratiques de mobilité des immobiles les autres jours de la semaine puisque cette enquête précise les déplacements des individus sur une période de sept jours. Le terrain brésilien offre une situation très contrastée par rapport aux deux autres terrains précédents. Outre la mise en évidence de la récurrence de certains déterminants de l'immobilité, cerner l'immobilité au Brésil nous aidera à porter un regard décentré sur la réalité française et européenne.

Dinámica de la inserción territorial de la agricultura pampeana y emergencia del agribusiness

International audience; One of the central questions in distributed computability is characterizing the tasks that are solvable in a given system model. In the anonymous case, where processes have no identifiers and communicate through multi-writer/multi-reader registers, there is a recent topologi-cal characterization (Yanagisawa 2017) of the colorless tasks that are solvable when any number of asynchronous processes may crash. In this paper, we consider the case where at most t asynchronous processes may crash, where 1 ≤ t < n. We prove that a colorless task is t-resilient solvable anonymously if and only if it is t-resilient solvable non-anonymously. We obtain our results through various reductions and simulations that explore how to extend techniques for non-anonymous computation to anonymous one.

International audience; Fern fossils from the Triassic are predominantly impressions and compressions; structurally preserved specimens are comparatively rare and primarily known from the Southern Hemisphere. Several permineralized stem portions from the Triassic of Upper Silesia are assigned to the poorly known genus Knorripteris (Knorripteridaceae), an enigmatic taxon initially attributed to the lycopsids but later reinterpreted as belonging to the ferns. Because the new stems differ from the known species of Knorripteris, they are assigned to a new species, for which the name Knorripteris taylorii nov. sp. is proposed. K. taylorii is characterized by a discontinuous phloem cylinder, leaf trace xylem strands that continue down to and converge at the center of the stem, cells with spiral thickenings (i.e., transfusion tissue) accumulating within the central zone of the stem, and xylem strands with abaxial protoxylem. Knorripteris exhibits several major features not typically seen in ferns, including a stelar organization that does not conform to the protostele/siphonostele/dictyostele types traditionally recognized in fossil and living ferns, the abaxial versus adaxial orientation of the protoxylem in leaf traces, as well as the acropetal decrease versus increase of the xylem in the leaf trace. The vascular system of Knorripteris is unique and challenges current concepts with regard to stelar evolution in ferns. The discontinuous phloem cylinder shows a cauline dictyostelic aspect, while the xylem appears to be foliar in origin. Knorripteris lacks a central protostelic column of vascular tissue; rather, the small foliar xylem strands come into close contact, but there is no evidence of fusion of tracheid bundles. Despite the wealth of new information on the internal organization of the Knorripteris stem provided by the specimens described in this study, the position of Knorripteris and the Knorripteridaceae within the ferns remains elusive.

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International audience

International audience; In the context of manufacturing in Industry 4.0, software systems become of prime importance. Efficient, adaptable and trusted software services are required. Several approaches succeeded in creating a Service-oriented Holonic Manufacturing System that combines the advantages of Service-oriented Architectures and Holonic Manufacturing Systems. However these systems until now suffer from many shortcomings, among which genericity, lack of proof of the functional behaviour correctness, architecture modularity, etc. These systems are often manually implemented and become hardly adaptable and reconfigurable to different contexts (resources, workshop...). In this paper, we investigate a Model Driven Engineering approach to represent these systems in order to automate the generation of the services logic code from an abstract models and construct a new software chain that deals with all the shortcomings cited above.