Proton Decay Constraints on Low Scale AdS/CFT Unification

Dark matter candidates and proton decay in a class of models based on the AdS/CFT correspondence are discussed. We show that the present bound on the proton decay lifetime is inconsistent with ${\cal N} = 1$ SUSY, and strongly constrains ${\cal N} = 0$ non-SUSY, low scale trinification type unification of orbifolded AdS$\otimes S^5$ models.Comment: 10 page

The No-Boundary Measure in the Regime of Eternal Inflation

The no-boundary wave function (NBWF) specifies a measure for prediction in cosmology that selects inflationary histories and remains well behaved for spatially large or infinite universes. This paper explores the predictions of the NBWF for linear scalar fluctuations about homogeneous and isotropic backgrounds in models with a single scalar field moving in a quadratic potential. We treat both the space-time geometry of the universe and the observers inhabiting it quantum mechanically. We evaluate top-down probabilities for local observations that are conditioned on the NBWF and on part of our data as observers of the universe. For models where the most probable histories do not have a regime of eternal inflation, the NBWF predicts homogeneity on large scales, a specific non-Gaussian spectrum of observable fluctuations, and a small amount of inflation in our past. By contrast, for models where the dominant histories have a regime of eternal inflation, the NBWF predicts significant inhomogeneity on scales much larger than the present horizon, a Gaussian spectrum of observable fluctuations, and a long period of inflation in our past. The absence or presence of local non-Gaussianity therefore provides information about the global structure of the universe, assuming the NBWF.Comment: 29 pages, 8 figure

Shareholder Welfare in Minority Freeze-Out Bids: Are Legal Protections Sufficient? Evidence from the U.S. Market

Anlegerschutz, Kleinaktionär, Diskriminierung, Vereinigte Staaten, Investor protection, Small shareholders, Discrimination, United States

An inertial velocity reference for the NASA airborne Doppler lidar

The following four tasks were studied: (1) modification of the calibration routines to calibrate the Inertial Measurement Unit gyroscope drifts with fixed platform heading; (2) modification of the calibration routines to calibrate the Inertial Measurement Unit accelerometers; (3) checking overall software again for errors; and (4) providing documentation on the above work describing changes to the present software, results of these changes and future operating procedures

The No-Boundary Measure of the Universe

We consider the no-boundary proposal for homogeneous isotropic closed universes with a cosmological constant and a scalar field with a quadratic potential. In the semi-classical limit, it predicts classical behavior at late times if the initial scalar field is more than a certain minimum. If the classical late time histories are extended back, they may be singular or bounce at a finite radius. The no-boundary proposal provides a probability measure on the classical solutions which selects inflationary histories but is heavily biased towards small amounts of inflation. This would not be compatible with observations. However we argue that the probability for a homogeneous universe should be multiplied by exp(3N) where N is the number of e-foldings of slow roll inflation to obtain the probability for what we observe in our past light cone. This volume weighting is similar to that in eternal inflation. In a landscape potential, it would predict that the universe would have a large amount of inflation and that it would start in an approximately de Sitter state near a saddle-point of the potential. The universe would then have always been in the semi-classical regime.Comment: 4 pages, revtex4, minor corrections to accord with published versio

Vector Fields in Holographic Cosmology

We extend the holographic formulation of the semiclassical no-boundary wave function (NBWF) to models with Maxwell vector fields. It is shown that the familiar saddle points of the NBWF have a representation in which a regular, Euclidean asymptotic AdS geometry smoothly joins onto a Lorentzian asymptotically de Sitter universe through a complex transition region. The tree level probabilities of Lorentzian histories are fully specified by the action of the AdS region of the saddle points. The scalar and vector matter profiles in this region are complex from an AdS viewpoint, with universal asymptotic phases. The dual description of the semiclassical NBWF thus involves complex deformations of Euclidean CFTs.Comment: 17 pages, 3 fig

Minimal Pati-Salam Model from String Theory Unification

We provide what we believe is the minimal three family ${\cal N} = 1$ SUSY and conformal Pati-Salam Model from type IIB superstring theory. This $Z_3$ orbifolded AdS$\otimes S^5$ model has long lived protons and has potential phenomenological consequences for LHC.Comment: 8 page

Understanding the Interaction Between Cotton Ginning and Rural Economics in the Mid-South Under A Changing Cotton Environment

This study estimates economic impact of ginning on Mid-South states applying input-output analysis to gin cost data. Results indicated that cotton ginning activity in the Mid-South generated over $258 million in direct output effects during 2007 and$438 million in total effects with a multiplier of 2.39.cotton, cotton ginning, economic impact, multiplier, Mid-South, input-output, Agribusiness, Community/Rural/Urban Development, R15,

CAMPUS AS HOME: AN EXAMINATION OF THE IMPACT OF STUDENT HOUSING AT THE UNIVERSITY OF KENTUCKY IN THE PROGRESSIVE ERA

This dissertation explores how student housing impacted the college campus of the University of Kentucky in the Progressive Era. Student housing has long been part of the college ideal but lacked full engagement by many administrators. Through three examinations, housing will be shown to have directly influenced the administrative, social, and staffing elements of the college campus. The role student housing played in the interaction of political, rural, and sociological changes on the campus during the time period allows exploration in detail while addressing the changes within those areas of the state as well. While housing was an afterthought by the administration due to oversight and lack of funding throughout much of the examined history (1880-1945), its consideration was still an essential part of student life and part of the college ideal. Housing was a place wholly of the student – while administrators set policies and the government had a concern for it at various times, it was also a place where, originally, a “boys will be boys” mentality slid by, unapproved, but unthreatened. However, how did the politics of the state shape the college and its housing experience? How did the addition of women students, the first of many major additions that were foreign to the original student population of mostly rural males, change the campus and its structures? Originating in the “environment” of student-centered housing – be it boarding houses, Greek houses, or dormitories, the students who populated these facilities would cajole, alter, and sometimes force the campus through both intentional and unintentional engagements and interactions. This dissertation shall establish an understanding of how the administration, particularly the presidency, viewed student housing. Following the introduction, three sections shall detail instances of housing influencing the campus climate in ways previously understudied. First, an examination of the political climate of the state interacted with concerns about student housing as a key factor in ending the presidency of Barker. The second section will show how a judicial ruling created new forms of student services – granting in loco parentis control but also creating the need for the diversification of services beyond what had existed previously. The third section will denote, in detail, how housing women changed the college campus – expanding its borders and the need for services. Through such examinations, a previously unexplored role of student living quarters as affecting the growth and development of the University of Kentucky into the institution it is now shall become apparent