2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194986We construct a simple local model of dynamical supersymmetry breaking. The model is a one generation SU(5) that arises from a IIB Z_N orientifold. It does not admit a runaway direction and is argued to stabilize the blowup mode related to the corresponding U(1) factor. The theory demonstrates the existence of a new class of "blowup" fractional branes. We further discuss a compact realization of the quiver on a Calabi-Yau 3-fold which enables one to add fluxes and stabilize the complex structure moduli.4 pages, revtex4; An error was corrected following [arXiv:0707.0298]High Energy Physics - Theorytext