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Functional Weak Laws for the Weighted Mean Losses or Gains and Applications

Applied Mathematics 2015年第5期6卷 847-863页

作者： Gane Samb Lo serigne touba sall Pape Djiby Mergane LERSTAD Universit&eacute Gaston Berger de Saint-Louis Saint-Louis S&eacute né gal LSTA Universit&eacute Pierre et Marie Curie Paris France Ecole Normale Supé rieure Dakar S&eacute né gal

In this paper, we show that many risk measures arising in Actuarial Sciences, Finance, Medicine, Welfare analysis, etc. are gathered in classes of Weighted Mean Loss or Gain (WMLG) statistics. Some of them are Upper Threshold Based (UTH) or Lower Threshold Based (LTH). These statistics may be time-dependent when the scene is monitored in the time and depend on specific functions w and d. This paper provides time-dependent and uniformly functional weak asymptotic laws that allow temporal and spatial studies of the risk as well as comparison among statistics in terms of dependence and mutual influence. The results are particularized for usual statistics like the Kakwani and Shorrocks ones that are mainly used in welfare analysis. Data-driven applications based on pseudo-panel data are provided.

关键词： Empirical Process Time Dependent Process Weak Theory Risk Measures Poverty Index Loss Function Economic Welfare

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Cam-Clay Models Using Castem 2000<sup>©</sup>and Plaxis<sup>©</sup>for the Study of the Slope Stability of the “Corniche Ouest” of the Dakar Peninsula (Senegal, West Africa)

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Geomaterials 2011年第2期1卷 51-58页

作者： Meissa Fall serigne Sam Samb Mapathé Ndiaye Oustasse A. sall Fatou Samb 不详

The stability of the natural slopes of the “Corniche Ouest” of Dakar Capital was intensively researched by previous [1] in [2] and recent studies [3]. Soils near the surface consist of weathered lateritic cuirass, silt and marl that have been intensively altered and fractured. Below these altered layers are limestones that are interbedded with other thin volcanic layers. Prior to the 1950s the area had been less urbanized. In the 1950s demand for habitations and administrative offices led to the development of the area but, no drainage system was available. In 1984 the area began moving down slope toward the ocean. Rates of movement were the fastest several months after the end of the rainy season and the slowest during the dry season. In the next years the earthflow moved as much as some meters, but in the processes the expensive homes and administrative buildings built became uninhabitable. Movement was caused by a combination of wave erosion along the coast removing some the mass resisting flow, added water due to the disposal of wastes, watering of lawns, and rainfall causing the clays to expand and weaken, and by the added weight of development on top of the flow. The first investigations, due to a lack of geotechnical information describe a stable area even though it was observed cracks and failure in habitations. The main results obtained were specially obtained by analytical techniques of slices. It is well known that the mechanical response of a solid mass of soil depends primarily on the laws of behavior which were affected to him. The Cam-Clay model is used with two comparative numerical codes such as Castem 2000?, a non commercial code and Plaxis 7.2? so as to compare the mechanical response of the slopes. The models of Cambridge are founded as simple theory and use only some soil mechanical parameters easy to determine. The results are founded highly different from a code to another, but they attest all that the system described is non stable. Otherwise

关键词： Corniche Ouest Stability Numerical Codes Cam Clay Movements Natural Slopes

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China’s education experience offers valuable lessons

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一带一路报道 2019年第5期 17-17页

作者： serigne Mbaye Thiam the Global Partnership for Education Board of Directors

In September 2018,Senegal's President Macky sall, stood beside Chinese President Xi Jinping at the 2018 Forum on China-Africa Cooperation (FOCAC) to support the adoption of the Beijing Declaration Toward an Even Stronger China-Africa Community with a Shared Future. Senegal was proud to co-chair the FOCAC with China, a country that has, for a number of years, demonstrated its capacity to act with increasing dynamism as a true development partner for the African continent.

关键词： sall adoption continent

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