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Center Point, AL, United States

Troy University is a comprehensive public university that is located in Troy, Alabama, United States. It was founded on February 26, 1887 as Troy State Normal School within the Alabama State University System by an Act of the Alabama Legislature. It is the flagship university of the Troy University System with its main campus enrollment of 6,998 students and the total enrollment of all Troy University campuses of 19,579. Troy University is regionally accredited by the Southern Association of Colleges and Schools Commission on Colleges to award associate, baccalaureate, master's, education specialist, and doctoral degrees.In August 2005, Troy State University, Montgomery; Troy State University, Phenix City; Troy State University, Dothan; and Troy State University all merged under one accreditation to become Troy University to better reflect the institution's worldwide mission. Prior to the merger, each campus was independently accredited and merging of these campuses helped to create a stronger institution by eliminating overlapping services and barriers to students. The merger combined talents and resources of staff, faculty, and administrators into a single highly effective and competitive university.Today, the University serves the educational needs of students in four Alabama campuses, sixty teaching sites in 17 U.S. States and 11 countries. Troy University's graduates number more than 100,000 alumni representing all 50 states and from numerous foreign countries. Troy University is known as Alabama's International University for its extensive international program in attracting foreign students from around the world. Wikipedia.

Burrington B.A.,Troy University | Peet A.W.,University of Toronto | Zadeh I.G.,University of Toronto
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013

In the context of the fuzzball program, we investigate deforming the microscopic string description of the D1-D5 system on T4×S1 away from the orbifold point. Using conformal perturbation theory and a generalization of Lunin-Mathur symmetric orbifold technology for computing twist-nontwist correlators developed in a companion paper Burrington et al., arXiv:1211.6689, we initiate a program to compute the anomalous dimensions of low-lying string states in the D1-D5 superconformal field theory. Our method entails finding four-point functions involving a string operator O of interest and the deformation operator, taking coincidence limits to identify which other operators mix with O, subtracting the identified conformal family to isolate other contributions to the four-point function, finding the mixing coefficients, and iterating. For the lowest-lying string modes, this procedure should truncate in a finite number of steps. We check our method by showing how the operator dual to the dilaton does not participate in mixing that would change its conformal dimension, as expected. Next we complete the first stage of the iteration procedure for a low-lying string state of the form ∂X∂X∂̄X∂̄X and find its mixing coefficient. Our most interesting qualitative result is evidence of operator mixing at first order in the deformation parameter, which means that the string state acquires an anomalous dimension. After diagonalization this will mean that anomalous dimensions of some string states in the D1-D5 superconformal field theory must decrease away from the orbifold point while others increase. © 2013 American Physical Society.

Burrington B.A.,Troy University | Peet A.W.,University of Toronto | Zadeh I.G.,University of Toronto
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013

We consider general 2D orbifold CFTs of the form MN/SN, with M a target space manifold and SN the symmetric group, and generalize the Lunin-Mathur covering space technique in two ways. First, we consider excitations of twist operators by modes of fields that are not twisted by that operator, and show how to account for these excitations when computing correlation functions in the covering space. Second, we consider nontwist sector operators and show how to include the effects of these insertions in the covering space. We work two examples, one using a simple bosonic CFT, and one using the D1-D5 CFT at the orbifold point. We show that the resulting correlators have the correct form for a 2D CFT. © 2013 American Physical Society.

Beck H.P.,Appalachian State University | Milligan M.,Troy University
Internet and Higher Education | Year: 2014

The positive effects of institutional commitment (IC) on student persistence and success have long been recognized in campus face to face programs, but there is little commensurate research focused on students in online programs. The objectives of this investigation are to: (a) determine if a combination of demographic, family background, reasons for attending, and student experience variables reliably predicts the IC of online students, (b) assess the relative contributions of the predictors, and (c) provide information to counselors, advisors, and policy makers enabling them to augment the commitment of their students. A sample of 831 online students at a southeastern university responded to the College Persistence Questionnaire (CPQ). Results indicated the CPQ reliably predicted IC scores, accounting for 35% of the variance. An important finding was that variables available at or prior to matriculation were of limited utility in predicting IC. Instead, IC was primarily determined by students' interactions with the schools' academic and social environments. Implications for enhancing student commitment are discussed. © 2013 Elsevier Inc.

Menon G.,Troy University
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2015

In a previous article we derived a class of solutions to the force-free magnetosphere in a Kerr background. Here, the streaming surface, defined by constant values of the toriodal component of the electromagnetic vector potential A, was generated by constant values of θ. The electromagnetic current vector flowed along the infalling principle null geodesic vector of the geometry. Subsequently, we generalized this to obtain an outgoing principle null geodesic vector as well. In this article, we derive solutions that are complimentary to the above-mentioned criteria. Namely, here the solution has a streaming surface generated by spheres of constant radial coordinate r, and the current vector is generated by linear combinations of m and m the remaining bases vectors in the Newman-Penrose null tetrad. © 2015 American Physical Society.

Topaloglu S.,Dokuz Eylul University | Ozkarahan I.,Troy University
Computers and Operations Research | Year: 2010

Persistent calls come from within the graduate medical education community and from external sources for regulating the resident duty hours in order to meet the obligations about the quality of resident education, the well-being of residents themselves, and the quality of patient care services. The report of the Accreditation Council for Graduate Medical Education (ACGME) proposes common program requirements for resident hours. In this paper, we first develop a mixed-integer programming model for scheduling residents' duty hours considering the on-call night, day-off, rest period, and total work-hour ACGME regulations as well as the demand coverage requirements of the residency program. Subsequently, we propose a column generation model that consists of a master problem and an auxiliary problem. The master problem finds a configuration of individual schedules that minimizes the sum of deviations from the desired service levels for the day and night periods. The formulation of this problem is possible by representing the feasible schedules using column variables, whereas the auxiliary problem finds the whole set of feasible schedules using constraint programming. The proposed approach has been tested on a series of problems using real data obtained from a hospital. The results indicate that high-quality schedules can be obtained within a few seconds. © 2010 Elsevier Ltd. All rights reserved.

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