Application of heat pipes to a nuclear aircraft propulsion system

Application of heat pipes to nuclear aircraft propulsion syste

Retrofitting O'Raifeartaigh Models with Dynamical Scales

We provide a method for obtaining simple models of supersymmetry breaking, with all small mass scales generated dynamically, and illustrate it with explicit examples. We start from models of perturbative supersymmetry breaking, such as O'Raifeartaigh and Fayet models, that would respect an $R$ symmetry if their small input parameters transformed as the superpotential does. By coupling the system to a pure supersymmetric Yang-Mills theory (or a more general supersymmetric gauge theory with dynamically small vacuum expectation values), these parameters are replaced by powers of its dynamical scale in a way that is naturally enforced by the symmetry. We show that supersymmetry breaking in these models may be straightforwardly mediated to the supersymmetric Standard Model, obtain complete models of direct gauge mediation, and comment on related model building strategies that arise in this simple framework.Comment: 15 pages, harvmac bi

The Scaling of the No Scale Potential and de Sitter Model Building

We propose a variant of the KKLT (A)dS flux vacuum construction which does not require an antibrane to source the volume modulus. The strategy is to find nonzero local minima of the no-scale potential in the complex structure and dilaton directions in moduli space. The corresponding no-scale potential expanded about this point sources the volume modulus in the same way as does the antibrane of the KKLT construction. We exhibit explicit examples of such nonzero local minima of the no-scale potential in a simple toroidal orientifold model.Comment: 11 pages, harvmac big. v2: trivial typos fixe

Transportation is a barrier to accessing primary care in Vermont

Transportation barriers lead to rescheduled or missed appointments, delayed care, and missed or delayed medication use. Rural patients are especially vulnerable to transportation barriers; in Chittenden County specifically, older adults surveyed reported difficulty with transportation, with 69% delaying medical appointments due to transportation barriers. Based on data collected in this study, even among patients at South Burlington Family Medicine, distance from the office is correlated with declining important medical appointments.https://scholarworks.uvm.edu/fmclerk/1632/thumbnail.jp