[en] Abstracts are provided for the different contributions. They address: The UDEPO database of the IAEA; The availability on the long term of world uranium resources; Interpreting U-Th distribution in the continental crust for radiometric data (NEEDS GeoMac project); The U cycle and the growth-remobilization of continents (NEEDS URCO project); The petrographic and geochemical characterisation of bituminous, sandstone and mud-stone shales in Morocco (analogy with the confinement and storage of radioactive wastes); Recent developments in radiometry (from well logging to measurement in laboratory); Multi-scale approach for the characterisation of emanometry anomalies noticed in the Zoovch Ovoo deposit, Mongolia; A new investigation tool for mining applications (the underground muon tomography, NEEDS ToMuFor project); Contribution of VIS-PIR spectrometry to the study of coffinite in the mining context; Isotopic fractioning of oxygen during processes of precipitation, calcination and reduction of uranium oxides; H₂ production and mobility in uranium deposits associated with a discrepancy; Lixiviation of the hydrogen-bearer Cigar Lake ore; New molecules extracting the uranium present in industrial phosphoric acid; Mechanisms of uranium extraction in ionic liquid media (NEEDS MINION project); Uranium recovery from acid media by using silica-type functionalized solid supports; Damage zone of reactivated Hudsonian faults, a major fluid pathway for large and deep brine percolation in basement rocks of the Athabasca basin (Cigar Lake U deposit, Canada); Is a fertile basement complex a necessary prerequisite to the genesis of high grade U/C-type uranium deposits: source rock clues from the Eastern Athabasca Basin?; Structural analysis of the ductile-brittle fault network in the basement below the Athabasca Basin (Martin Lake, Saskatchewan) - Implications on the controls of uranium-related hydrothermal alteration; Integrated targeting for fault-related basement-hosted uranium deposits: lessons from geologically-constrained 3D gravity inversion modelling and lead isotope geochemistry at the Contact prospect (Kiggavik area, Thelon Basin, Canada); Geology and structural controls in the Contact prospect, Kiggavik uranium project (NE Thelon area, Canada); Synthesis and characterisation of UTi₂O₆ brannerite; Physico-chemical characterisation of natural brannerite samples by scanning electronic microscopy and electronic probe; Assessment of the atmospheric impact of a uranium mine on the recording of radionuclides and metallic trace elements in a mire; Contribution of thermodynamics to UF₆ industrial production; Effects of irradiation on the evolution of mineralogical properties of apatites (NEEDS IrrPO4 project); Prospection guides in searches for uranium mineralizations in the Tim Mersoii Basin; Metallogenic model of uranium deposits associated with the Arlit fault (Tim Mersoii Basin, Niger); Molybdenum valorisation from effluents of a uranium ore treatment plant; Characterisation of the host layer of uranium mineralizations of Mikouloungou (High Ogooue Province, Gabon) - Part 1: Sedimentology, stratigraphy, diagenesis. Geo-dynamic implication on the Francevillian. Part 2: Petrography, dating. Geodynamic implications on the Francevillian