Looking Good, Feeling Good – Tac Map: a navigation system for the blind

This paper describes the research and development of a navigation system for the blind that provides a tactile and visual language that can be understood by both sighted and blind users. It describes key work and issues in the development of graphical symbols and in particular the pioneering work of Neurath‟s ISOTYPES, as well as more specific communication systems for blind people. The paper focuses on the development of "TacMap‟, a navigation system for the blind. User engagement has been fundamental in the research and the paper discusses the methodology, the research findings and product‟s potential future opportunities and impact

Application of Random Matrix Theory to Multivariate Statistics

This is an expository account of the edge eigenvalue distributions in random matrix theory and their application in multivariate statistics. The emphasis is on the Painlev\'e representations of these distributions

Distribution Functions for Edge Eigenvalues in Orthogonal and Symplectic Ensembles: Painlev\'e Representations

We derive Painlev\'e--type expressions for the distribution of the $m^{th}$ largest eigenvalue in the Gaussian Orthogonal and Symplectic Ensembles in the edge scaling limit. The work of Johnstone and Soshnikov (see [7], [10]) implies the immediate relevance of our formulas for the $m^{th}$ largest eigenvalue of the appropriate Wishart distribution

Differential and complex geometry of two-dimensional noncommutative tori

We analyze in detail projective modules over two-dimensional noncommutative tori and complex structures on these modules.We concentrate our attention on properties of holomorphic vectors in these modules; the theory of these vectors generalizes the theory of theta-functions. The paper is self-contained; it can be used also as an introduction to the theory of noncommutative spaces with simplest space of this kind thoroughly analyzed as a basic example.Comment: final draf

Aménagements hydro-agricoles et santé (vallée du fleuve Sénégal)

Près de 1 500 personnes résidant dans les villages rattachés au périmètre irrigué MO 6bis (périmètre de Diomandou, département de Podor) ont fait l'objet de prélèvements d'urine et/ou de selle afin de déterminer la prévalence de la bilharziose urinaire, de la bilharziose intestinale ainsi que des autres parasitoses entériques. Chez les riverains du périmètre, 1 295 urines ont été examinées, parmi lesquelles sept contenaient des oeufs viables de #Schistosoma haematobium$, ce qui représente un taux de prévalence de 0,5$, ce qui correspond à un indice d'infestation de 0,1%. Il s'agissait là aussi d'un individu dont la contamination avait eu lieu en dehors de la zone d'étude. #Eschirichia coli$est la parasite entérique le plus répandu avec 17,2$, #Strongyloïdes stercoralis, #Ascaris lumbricoïdes et #Trichiuris trichiura$ sont rares et ne concernent qu'un peu moins de 2% des sujets examinés. Ces résultats démontrent l'absence, pour l'instant tout au moins, de foyers de transmission des bilharzioses dans les villages du périmètre de Diomandou. Le risque d'apparition de ces maladies est cependant important et dépend à la fois de l'évolution des infrastructures et de l'éventuelle apparition d'hôtes intermédiaires encore absent du réseau hydrographique de ce périmètre mis en place récemment. (Résumé d'auteur

Improvement of mixed farming systems in Sudano-Sahelian Africa. Role of the species Stylosanthes hamata (L.) Taub. A review

Introduction. In Sudano-Sahelian Africa, the traditional farming systems are no longer able to meet the food needs of the population. In order to sustainably improve the food security of small family farms, agro-ecological practices are increasingly being promoted by research and development organizations. Literature. Several studies have shown that agricultural productivity can be sustainably improved through a better integration of agriculture and livestock activities. One approach currently being considered is the integration into farming systems of Stylosanthes hamata (L.) Taub: a herbaceous annual to short-lived perennial. This plant has the proven potential to enhance the performance of cropping systems in many ways. It also allows for the critical production of a high quality fodder for animal feed, from the second year after planting onwards. However, phytosanitary, technical, environmental and / or socio-economic constraints would need to be lifted to allow a better integration of the crop into farming systems. Conclusions. Integration of S. hamata into the farming systems of the Sudano-Sahelian regions presents potential benefits that merit further investigation, in order to identify the appropriate modalities for this integration. © 2015, FAC UNIV SCIENCES AGRONOMIQUES GEMBLOUX. All rights reserved