Baryogenesis in Lorentz-violating gravity theories

Lorentz-violating theories of gravity typically contain constrained vector fields. We show that the lowest-order coupling of such vectors to $\mathrm{U}(1)$-symmetric scalars can naturally give rise to baryogenesis in a manner akin to the Affleck-Dine mechanism. We calculate the cosmology of this new mechanism, demonstrating that a net $B-L$ can be generated in the early Universe, and that the resulting baryon-to-photon ratio matches that which is presently observed. We discuss constraints on the model using solar system and astrophysical tests of Lorentz violation in the gravity sector. Generic Lorentz-violating theories can give rise to the observed matter-antimatter asymmetry without violating any current bounds.Comment: Five pages, two figures, submitted to PL

Deepening Divisions: The Influence of Protestant Faith in Civil War Reconciliation

This thesis considers the influence of mainstream Protestantism on Civil War reconciliation. Through reconciliation, Northern and Southern residents came to forgiveness and comradery, moving beyond animosity. This has been a focus of historical research in the past two decades, but with particular attention to the resentment of veterans. With this, many scholars have overlooked the impact of other institutions of American society. This thesis addresses the issue by analyzing the effects of religious opinions on the perceptions that veterans and civilians held of their former enemies. Protestantism was the dominant faith of the nation, rivaling any organization of influence in America. With such preeminence, religion deserves recognition as an agent that reinforced negative feelings both during and after the war. The goal of this thesis is also to expand on the limited historical research that has occurred on the subject to date. Few historians have researched the significance of religion in the process of Civil War reconciliation. With few researchers, the static conclusion has been that religion helped reconciliation as Northern and Southern whites found racial unity through religious events in the late nineteenth century. By contrast, this thesis shows how religion came to enflame the negative perceptions of white citizens. This thesis therefore offers a more exhaustive view on the subject as religion affected the psyche of citizens when remembering the war and their reunited neighbors

Laws and Ethics in relation to Medical Entrepreneurship

Some healthcare laws affect academic entrepreneurs who may also be practicing healthcare providers. Understanding the regulatory agencies and relevant laws is essential to avoiding legal entanglement with regulatory authorities and creating a successful health business venture. It is important to follow ethical standards in starting and managing a company. Ethical shortcuts may yield short-term benefits but pose substantial risk in the long run, including the potential for ethical and financial malfeasance

Integral formulation of Klein-Gordon singular waveguides

We consider the analysis of singular waveguides separating insulating phases in two-space dimensions. The insulating domains are modeled by a massive Schr\"odinger equation and the singular waveguide by appropriate jump conditions along the one-dimensional interface separating the insulators. We present an integral formulation of the problem and analyze its mathematical properties. We also implement a fast multipole and sweeping-accelerated iterative algorithm for solving the integral equations, and demonstrate numerically the fast convergence of this method. Several numerical examples of solutions and scattering effects illustrate our theory