2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40354These notes are a summary of our predictions for the new THERA project, related to deep inelastic scattering in the region of ultra low $x$ ($x \to 10^{-7}$). We collect here predictions that satisfy two criteria (i) they do not depend on specific features of the model that we have to use to estimate a possible effect; and (ii) they do not contradict the HERA data.20 pages, 13 figs in eps filesHigh Energy Physics - Phenomenologytext