TABLE DES MATI`ERES Introduction 1. Structure galoisienne de courbes modulaires 2. Le cas p = 23 3. Méthode et Résultats Remerciements Bibliographie Nous construisons 53 corps quadratiques imaginaires ayant un 11-rangégaì a 3, et sept corps quadratiques réels de 11-rangégaì a 2. Ce sont, ` a notre connaissance, les premiers exemples de tels corps. We construct 53 imaginary quadratic fields of 1...

To modeling of Suitability Iranian Oak site to establish coppice regenerations, chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, southern Zagros forest, and southwest Iranian state was selected. To modeling Suitability Iranian Oak used the physiographic element, soil depth, climatology and distance from village selected. To this study used the raster formats by pixel...

The structural and bleaching properties of nitric acid-activated Nteje clay was studied to investigate its ability to serve as an alternative to the high cost imported bleaching earth. The clay was mined, sun-dried, grinded, and reacted with different concentrations of nitric acid, ranging from 2 mol.L-1 to 15 mol.L-1. The un-activated and activated samples were characterized to study the struc...

Approximately, half of the patients with progressive sepsis develop encephalopathy, but there is scarce knowledge onto question that how the sepsis associated encephalopathy contributes brain dysfunction. Hippocampus is one of the most vulnerable regions during experimental sepsis. In the present study, effects of sepsis on the neuronal density and morphology in CA1, CA3 and DG areas were inves...

A k-triangulation of the n-gon is a maximal set of diagonals of the n-gon containing no subset of k + 1 mutually crossing diagonals. The number of k-triangulations of the n-gon, determined by Jakob Jonsson, is equal to a k×k Hankel determinant of Catalan numbers. This determinant is also equal to the number of k non-crossing Dyck paths of semi-length n− 2k. This brings up the problem of finding...

Adaptive composite map projections transform projections as the user changes the scale of the web map. The equal-area version of the original adaptive map projection composite uses the Lambert azimuthal equal-area projection for regional maps, and three equal-area world projections, namely the Hammer, the Eckert-Greifendorff, and the quartic authalic projections. These three projections show po...

To modeling of Suitability Iranian Oak site to establish coppice regenerations, chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, southern Zagros forest, and southwest Iranian state was selected. To modeling Suitability Iranian Oak used the physiographic element, soil depth, climatology and distance from village selected. To this study used the raster formats by pixel...

To modeling of Suitability Iranian Oak site to establish coppice regenerations, chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, southern Zagros forest, and southwest Iranian state was selected. To modeling Suitability Iranian Oak used the physiographic element, soil depth, climatology and distance from village selected. To this study used the raster formats by pixel...