2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/96094We give a general introduction and discussion of the issues involved in using the twisted mass formulation of lattice fermions in the context of disconnected loop calculations, including a short orientation on the present experimental situation for nucleon strange quark form factors. A prototype calculation of the disconnected part of the nucleon scalar form factor is described.6 pages, 5 figures, documentclass{PoS}High Energy Physics - Latticetext