2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180405After briefly reviewing the status of the standard model, I will focus mainly on polarized electron scattering and other tests of the weak neutral current. I will also address other low energy tests in which polarization degrees of freedom play a crucial role, including precision muon physics and searches for electric dipole moments.10 pages, 2 figures; plenary talk presented at the 17th International Spin Physics Symposium (SPIN 2006), Kyoto University, Kyoto, Japan, Oct. 2-7, 2006; 1 reference addedHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext