Impact assessment of communicating seasonal climate forecasts in Kaffrine, Diourbel, Louga, Thies and Fatick (Niakhar) regions in Senegal: Final Report for CCAFS West Africa Regional Program

Climate information is now an agricultural input just like seeds, fertilizers or equipment which are at the basis of production. In a nutshell, this is what emerges from this assessment report on the CGIAR Program on Climate Change, Agriculture and Food Security (CCAFS) on the transmission of climate information (CI) and relevant agricultural advice to farmers in Kaffrine, Diourbel, Thies, Louga and Fatick administrative regions. Through this project, CCAFS seeks to contribute to improving the resilience of rural people to climate change by mainstreaming climate information more adequately in the planning and implementation of development activities. Thanks to the involvement of the network of community rural radio stations (URAC), CCAFS estimates that two million people have had access to climate information (CI), have used it in whole or in part, and that this has had an impact on their farming practices

Quantum Thetas on Noncommutative T^4 from Embeddings into Lattice

In this paper we investigate the theta vector and quantum theta function over noncommutative T^4 from the embedding of R x Z^2. Manin has constructed the quantum theta functions from the lattice embedding into vector space (x finite group). We extend Manin's construction of the quantum theta function to the embedding of vector space x lattice case. We find that the holomorphic theta vector exists only over the vector space part of the embedding, and over the lattice part we can only impose the condition for Schwartz function. The quantum theta function built on this partial theta vector satisfies the requirement of the quantum theta function. However, two subsequent quantum translations from the embedding into the lattice part are non-additive, contrary to the additivity of those from the vector space part.Comment: 20 pages, LaTeX, version to appear in J. Phys.

Déterminants de la demande de soins en milieu péri-urbain dans un contexte de subvention à Pikine, Sénégal

Depuis les années 2000, le Sénégal a adopté des politiques nationales visant la suppression progressive du paiement direct au point de services pour rendre les soins de santé plus accessibles. La mise en place de ces politiques de subvention et de gratuité dans un espace dense hétérogène voire hétéroclite, présente une situation particulière. Pour comprendre ces interactions et étudier le comportement des ménages en matière de demande de soins, 5520 individus ont étés enquêtés à quatre reprises sur la période 2010-2011 dans la banlieue de Dakar (Pikine), un probit multinomial est estimé pour étudier la demande de soins de la population face à un épisode de maladie. Les résultats montrent que l'effet négatif du prix est en moyenne assez faible, mais qu'il varie en fonction du niveau de revenu et de la sévérité de la maladie. La qualité perçue des soins a un effet positif sur le recours aux services de santé privés pour lesquels on observe une compensation de l'effet négatif du prix par la qualité. L'effet de l'âge n'est pas linéaire et les enfants, plus touchés par la maladie, bénéficient de peu d'exemption ou du moins d'exemption partielle contrairement aux personnes âgées qui bénéficient d'exemption totale (plan SESAME)

The influence of the thickness of the Cds emitter layer on the performance of a CIGS solar cell with acceptor defects

In this work, we simulated a solar cell based on CIGS with simple default acceptor, using software (SCAPS) version 3.302 in order to study certain parameters. In particular, we have varied the thickness of the CdS emitter (0.05 mum, 0.04 mum and 0.03 mum) to study its influence on the performance of the cell. We were able to record that the energy efficiency increased from 16.50% for a thickness of 0.05 mum of the emitter to 16.87% for a thickness of 0.03 mum of the emitter. We also noted an improvement in other parameters, such as the form factor from FF = 79.81% to 80.10%, with the decrease in the thickness of the CdS. And from the Nyquist diagram, we also determined parameters like the series resistance to get an idea on the equivalent electrical circuit of the studied cell