2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141992A brief review on the status of unpolarized parton densities and the determination of the QCD scale $Λ_{\rm QCD}$ from deep-inelastic scattering data is presented.9 pages, 4 figures, Proc. 2007 EDS ConferenceHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentHigh Energy Physics - Latticetext