761 research outputs found

    Neutrino Masses and Mixing Angles in SUSY-GUT Theories with explicit R-Parity Breaking

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    In minimal SUSY GUT models the RR-parity breaking terms are severely constrained by SU(5) gauge invariance. We consider the particular case where the explicit RR-parity breaking occurs only via dimension 2 terms of the superpotential. This model possesses only three R-parity breaking parameters. We have studied the predictions of this model for the neutrino masses and mixing angles at the one-loop level within the framework of a radiatively broken unified supergravity model. We find that this model naturally yields masses and mixing angles that can explain the solar and atmospheric neutrino problems. In addition, there are regions in parameter space where the solution to the solar neutrino puzzle is compatible with either the LSND result or the existence of significant hot dark matter neutrinos.Comment: Revised version as published in Nucl. Phys. B; several typos correcte

    On the fine-tuning problem in minimal SO(10) SUSY-GUT

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    In grand unified theories (GUT) based on SO(10) all fermions of one generation are embedded in a single representation. As a result, the top quark, the bottom quark, and the Ď„\tau lepton have a universal Yukawa coupling at the GUT scale. This implies a very large ratio of Higgs vacuum expectation values, \tanb \simeq m_t/m_b. We analyze the naturalness of such a scenario quantitatively including all the relevant radiative corrections and find that in minimal unified supergravity models with universal soft supersymmetry breaking parameters at the GUT scale, the necessary amount of fine-tuning needed is excessive. GUT threshold correction to the universal Higgs mass parameter can significantly reduce the fine-tuning required for such large values of \tanb. We also point out that the top quark mass can play a crucial role in explaining the hierarchy between the SUSY breaking scale and the electro-weak scale and, hence, the naturalness of large values of \tanb.Comment: 20 pages, 10 figs, uses PHYZZX version to be published in Phys Rev.


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    We seek to develop a theological and metaphysical critique of the liberal understanding of religious freedom that is juridical in nature, revealing that what it can only mean by both “religion” and “freedom” are inadequate under the light of Christian orthodoxy. Not only is inadequate, but it does not allow orthodoxy to flourish under it, swallowing up all would-be competitors under its own liberal monism. This study pulls heavily from Roman Catholic Communio theology and its already broad critique of liberalism and liberal religious freedom, but also correlates those enlightening critiques with Pentecostalism, bringing an analogous critique of liberal religious freedom from a distinctly Pentecostal theology. In the end, we show that Pentecostalism will have to remove some internal contradictions in order to fully move into a post-liberal and distinctly Christian vision of religious freedom, but that those stumbling blocks can be removed by moving deeper into its truly Catholic elements, bringing forth interesting horizons for ecumenical dialogue that move beyond the scope of this study’s argument

    Bridging the Gap Between Evidence Based Opioid Sparing Techniques and Anesthesia Provider Practice

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    In light of the current opioid epidemic in the United States, multiple sectors of health care specialties and nursing leaders have been called to aide in reversing this deadly opioid abuse trend. As a team, Certified Registered Nurse Anesthetists (CRNA), surgeons, and anesthesiologists have made great strides in developing evidence-based protocols titled Enhanced Recovery After Surgery (ERAS). ERAS protocols vary according to the surgical specialty; however, one universal component includes opioid sparing techniques such as peripheral nerve blocks. Despite ERAS protocol’s benefits throughout the perioperative period, according to the literature, many anesthesia groups across the nation are non-compliant with their protocols due to lack of “buy- in” and resistance to change traditional practice. In particular, at a mid-size urban hospital, it was reported by key stakeholders that anesthesia providers are not compliant with the facility’s gynecology ERAS protocol which promotes opioid sparing techniques such as transverse abdominal plane (TAP) blocks/lidocaine infusions. The Gynecology Surgery ERAS protocol at this medical center was implemented in June of 2019. A six-month audit of gynecological surgeries between July and November of 2019, revealed that only 67 percent of the gynecology surgeries cases utilized TAP blocks or lidocaine infusions, indicating a possible clinical gap in practice. Prior to this project, reasons for lack of compliance with ERAS use of TAP blocks and lidocaine infusion administration among anesthesia providers was unknown. The purpose of this project was to identify the key reasons anesthesia providers were not utilizing the established ERAS guidelines and provide recommendations to the leadership that had authority to mitigate this issue and improve clinical practice of anesthesia providers caring for gynecology surgical patients

    Administrative Law: FDA Jurisdiction and Enforcement Discretion Regarding State-Mandated Use of Lethal Drugs for Capital Punishment

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    Chaney v. Heckler, 718 F.2d 1174 (D.C. Cir. 1983), cert. granted, 104 S. Ct. 3532 (1984) (No. 83-1878)
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