Digital Commons Network^™

Using Fuzzy Probability And Simulation Methods In Web Planning Models., Xidong Zheng

All ETDs from UAB

No abstract provided.

Paradigms, Pedagogy And Practice: Perspectives Of National Board Certified Teachers In Regard To Reading., Kathryn Dee Chandler

All ETDs from UAB

No abstract provided.

Erlang's Loss Formula And Its Use In Designing Packet Switched Networks., Johnny W. Goode

All ETDs from UAB

No abstract provided.

Pattern Formation For Some Systems Of Nonlinear Differential Equations., Jinguo Lian

All ETDs from UAB

No abstract provided.

Environmental Health Practitioners In Alabama: An Assessment Of The Practice Of The Ten Essential Services And Abilities In The Fourteen Core Competencies., Christie Mccullum-Hill

All ETDs from UAB

No abstract provided.

The Influence Of Organizational And Environmental Change On Specialty Choice: A Retrospective Study., Kalai Mugilan

All ETDs from UAB

No abstract provided.

Hearing Sensitivity Among Anniston Army Depot Workers., Melissa W. Norman

All ETDs from UAB

No abstract provided.

A Comprehensive Study Of Woven Carbon Fiber -Reinforced Nylon 6 Composites., Selvum Pillay

All ETDs from UAB

No abstract provided.

Development Of The Designer Diamond Anvils And Study Of Structural And Electrical Properties Of F-Electron Metals At Ultra-High Pressures., Nenad Velisavljevic

All ETDs from UAB

No abstract provided.

Synthesis Of Ternary Quantum Logic Circuits By Decomposition, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

Recent research in multi-valued logic for quantum computing has shown practical advantages for scaling up a quantum computer. [1,12] Multivalued quantum systems have also been used in the framework of quantum cryptography, [4] and the concept of a qudit cluster state has been proposed by generalizing the qubit cluster state. [5] An evolutionary algorithm based synthesizer for ternary quantum circuits has recently been presented, [2] as well as a synthesis method based on matrix factorization [3].In this paper, a recursive synthesis method for ternary quantum circuits based on the Cosine-Sine unitary matrix decomposition is presented.

Student Performance In Upper - Division Business Core Courses : Using Control Variables To Determine The Effect Of Class Size, Donna A. Driscoll, Paul J. Lazarony, Janna Arney, Earl J. Weiss

Management Faculty Publications

Although the effect of class size upon student performance has been the focus of numerous studies, the results have been extremely mixed, including positive effects, no effects, and negative effects. The authors of this study believe that this lack of consensus could be due, at least in part, to the shortage of control variables employed in previous studies. The purpose of this study was to determine whether the addition of four control variables (course being taught, length of class period, instructor, and student ability level) to the analysis would be helpful in isolating the effect, if any, of class size …

A Note On Lattice Chains And Delannoy Numbers, John S. Caughman Iv, Clifford R. Haithcock, J. J. P. Veerman

Mathematics and Statistics Faculty Publications and Presentations

Fix nonnegative integers n₁,…,n_d and let L denote the lattice of integer points (a₁,…,a_d)∈Z^d satisfying 0⩽a_i⩽n_i for 1⩽i⩽d. Let L be partially ordered by the usual dominance ordering. In this paper we offer combinatorial derivations of a number of results concerning chains in L. In particular, the results obtained are established without recourse to generating functions or recurrence relations. We begin with an elementary derivation of the number of chains in L of a given size, from which one can deduce the classical expression for the total number …

Configuring A Multi-Course Lab For System-Level Projects, Joel C. Adams, David W. Laverell

University Faculty Publications and Creative Works

Having students modify an actual operating system kernel or network protocol stack opens their eyes to what is going on "beneath the hood" of a computer. However student modifications to a system may result in an unstable computer. Because of this, giving students such experience has in the past required a lab and/or computers dedicated to the students in the system-level course, and computer science departments without such dedicated facilities have been unable to provide their students with system-level experience. In this paper, we present two ways of giving students system-level experience in a non-dedicated lab; one using commercial software …

Numerical Modelling Of Disintegration Of Basin-Scale Internal Waves In A Tank Filled With Stratified Water, N. Stashchuk, V. Vlasenko, K. Hutter

School of Biological and Marine Sciences

We present the results of numerical experiments performed with the use of a fully non-linear non-hydrostatic numerical model to study the baroclinic response of a long narrow tank filled with stratified water to an initially tilted interface. Upon release, the system starts to oscillate with an eigen frequency corresponding to basin-scale baroclinic gravitational seiches. Field observations suggest that the disintegration of basin-scale internal waves into packets of solitary waves, shear instabilities, billows and spots of mixed water are important mechanisms for the transfer of energy within stratified lakes. Laboratory experiments performed by D. A. Horn, J. Imberger and G. N. …

Job Satisfaction And Its Relationship To Organizational And Religious Commitment Among Workers At Northern Caribbean University, Donna Brown

Dissertations

Problem. Recruiting teachers and motivating them to stay in their jobs present a challenge to educational institutions in Jamaica. Given the importance of workers' satisfaction to the health of an organization and the link between job satisfactionand turnover rate, then an examination of job satisfaction at Northern Caribbean University (NCU) is a priority. Based on this background, the primary focus of this study was to investigate job satisfaction and its relationship to organizational and religious commitment among workers at NCU.

Method. This study utilized a quantitative, descriptive research design. A survey questionnaire was sent to all full-time administrators …

Positive Solutions For A Fourth Order Boundary Value Problem, Bo Yang

Faculty Articles

We consider a boundary value problem for the beam equation, in which the boundary conditions mean that the beam is embedded at one end and free at the other end. Some new estimates to the positive solutions to the boundary value problem are obtained. Some sufficient conditions for the existence of at least one positive solution for the boundary value problem are established. An example is given at the end of the paper to illustrate the main results.

Charged Higgs Production: Higher-Order Corrections, Nikolaos Kidonakis

Faculty Articles

I present a calculation of higher-order radiative corrections to charged Higgs production in association with a top quark via the process bg -> tH-. Results for charged Higgs production at the LHC are presented, including the dependence of the cross section on the charged Higgs mass, the top quark mass, the factorization and renormalization scales, and tan beta. I show that the theoretical prediction for the cross section is significantly enhanced and is greatly stabilized when the higher-order corrections are included.

Perceptions Of Effective Web-Based Design For Secondary School Students: A Narrative Analysis Of Previously Collected Data, Michael K. Barbour

Education Faculty Publications

In this article, I present the findings of a study on the perception of course developers and electronic teachers on the characteristics of effective web-based design for secondary school students. Through interviews, the perceptions of these participants on the use of various web-based components, how to incorporate sound instructional strategies into the web-based material, and the effectiveness of both the asynchronous web-based content and the synchronous delivery of that content are investigated in a virtual high school context.

Simulating The Oil Spill In The Arabian Gulf Marine Environment: A Risk Assessment In Association With Uae Coastal Desalination Plants, Abubaker Awad El-Hakeem

Theses

The current study is directed towards the development of oil spill hazard contour maps for the prediction of oil spill travel times and critical wind directions in association with major strategic desalination plants in United Arab Emirates. Five desalination plants in are selected along the UAE coastline to be the potential destination points of oil spill hazards. These plants are AI-Shuwayhat, AI-Mirfa, Umm AINar & Taweelah, Jebel Ali and AI-Layah.

In order to reach the set target, a coastal hydraulics simulation model is employed to adopt the real sea-state dynamic conditions. The hydrodynamic simulated results are tuned and tested against …

Applying The Information-Motivation-Behavioral Skills Model Of Hiv- Risk To Youth In Psychiatric Care, Geri R. Donenberg, Rebecca Moss Schwartz, Erin Emerson, Helen W. Wilson, Fred B. Bryant, Gloria Coleman

Psychology: Faculty Publications and Other Works

This study examined the utility of cognitive and behavioral constructs (AIDS in-formation, motivation, and behavioral skills) in explaining sexual risk taking among 172 12–20–year-old ethnically diverse urban youths in outpatient psy-chiatric care. Structural equation modeling revealed only moderate support for the model, explaining low to moderate levels of variance in global sexual risk taking. The amount of explained variance improved when age was included as a predictor in the model. Findings shed light on the contribution of AIDS informa-tion, motivation, and behavioral skills to risky sexual behavior among teens re-ceiving outpatient psychiatric care. Results suggest that cognitive and behavioral factors …

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

Fractal Dimensions In Red Blood Cells, Alina Rapa, Servilia Oancea, Dorina Creanga

Turkish Journal of Veterinary & Animal Sciences

We studied the erythrocyte aggregability for different animals using fractal analysis. Red blood cell aggregation is an important component of whole blood viscosity and is the major cause of the non-Newtonian flow properties of blood. To understand the aggregation process many models have been proposed in the literature. Since aggregates formed by aggregation have a fractal structure, mathematical descriptions of their irregular structure can be obtained using fractal geometry. For this purpose, blood samples were prepared from cows, sheep, rabbits, roosters, horses and humans by diluting 1:200 and mixing for 3 min in adequate reactives. A Turk room, microscope system …

Optimizing Integrated Water Resources Management: Data, Tools, And Examples, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

Best utilizing water resources requires coordinating their availability and use in time and space. Required can be: spatially and temporally distributed data; simulators to predict system response to stimuli; procedures for defining management goals, constraints, and scenarios; optimizers to compute optimal management strategies; and appropriate strategy implementation techniques. Here, a strategy is a set of controllable groundwater extraction and injection rates and surface water diversions. Simulation/optimization (S/O) models couple simulators and optimizers to compute optimal strategies for posed management problems. S/O models are becoming more commonly used for policy, planning, system design, and management. For example, water planners and managers …

Controlled Synthesis And Functionalization Of Nanoporous Solgel Silica Particles And Gels, Bing Tan

University of Kentucky Doctoral Dissertations

This dissertation addresses three research areas in the sol-gel synthesis of functionalmaterials. The first is the kinetics of hydrolysis and condensation of variousorganoalkoxysilanes. Two mathematical models are developed for the sol-gel reaction inbasic conditions with and without nearest-neighbor effects. Effects on reactivity aremeasured with systematic changes in the organic group structure. Replacing onemethoxy group on the precursor with a methyl group decelerates hydrolysis under basicconditions, but accelerates condensation under acidic conditions. Replacing two methylfunctionalprecursors with one ethylene-bridged precursor accelerates hydrolysis in base,but decelerates condensation in acid. Replacing an ethylene bridge with a hexylenebridge always decelerates the sol-gel reactions. Adding an …

Universal Human Rights, The United Nations, And The Telos Of Human Dignity, William J. Wagner

Scholarly Articles

In this short essay, I seek to provide a description of the way the rights framework, by its nature, functions to unify global practice around normative ideals. I then outline obstacles, both theoretical and practical, to the effective functioning of this framework and the advancement of its purpose. Next, I lay out and critique the means that the Church, in its official teaching, proposes for overcoming these obstacles. I conclude by sketching briefly what I understand to be a more adequate program for addressing the impediments that exist to the realization of the aspiration of universal respect for human dignity …

Self-Assembly Of Ge Quantum Dots On Si(100)- 2×1 By Pulsed Laser Deposition, M. S. Hegazy, H. E. Elsayed-Ali

Electrical & Computer Engineering Faculty Publications

Self-assembled Ge quantum dots are grown on Si(100)- 2×1 by pulsed laser deposition. The growth is studied by in situ reflection high-energy electron diffraction and postdeposition atomic force microscopy. After the completion of the wetting layer, transient hut clusters, faceted by different planes, are observed. When the height of these clusters exceeded a certain value, the facets developed into {305} planes. Some of these huts become {305}-faceted pyramids as the film mean thickness was increased. With further thickness increase, dome clusters developed on the expense of these pyramids. © 2005 American Institute of Physics. [DOI: 10.1063/1.1949285]

A Survey For Planetary Transits In The Field Of Ngc 7789, D. M. Bramich, Keith Horne, I. A. Bond, R. A. Street, A. Collier Cameron, B. Hood, J. Cooke, D. James, T. A. Lister, David Mitchell, K. Pearson, A. Penny, A. Quirrenbach, N. Safizadeh, Y. Tsapras

Physics

We present results from 30 nights of observations of the open cluster NGC 7789 with the Wide Field Camera on the Isaac Newton Telescope, La Palma. From ∼900 epochs, we obtained light curves and Sloan r'− i' colours for ∼33000 stars, with ∼2400 stars having better than 1 percent precision. We expected to detect ∼2 transiting hot Jupiter planets if 1 percent of stars host such a companion and a typical hot Jupiter radius is ∼1.2 R_J. We find 24 transit candidates, 14 of which we can assign a period. We rule out the transiting planet model …

Environmentally Friendly Technology: The Behaviour Of Natural And Synthetic Binder Systems Within Paper Coatings, Giuliano Laudone

School of Geography, Earth and Environmental Sciences Theses

Coating shrinkage upon drying is a phenomenon well known to the paper coating industry, where it often causes changes in the final structure of the coating layer leading to poor results in terms of gloss, light scattering, surface strength, coverage, uniformity and printability. Such shrinkage has in previous studies been wrongly associated with shrinkage of the polymeric binders used in the coating formulation, by making erroneous comparison with solvent-based paint systems. Natural binders, as starch or proteins, which come from renewable resources and are therefore environmentally friendly, suffer more from this shrinkage phenomenon than synthetic binders. The aim of this …

Modelling The Water Quality Of The Patos Lagoon, Brazil, Deborah Ann Tyrrell

School of Geography, Earth and Environmental Sciences Theses

A two-dimensional depth integrated finite element modelling suite comprising the flow model TELEN4AC-2D and the water quality model WQFLOW-2D has been calibrated to simulate the physics and chemistry of the Patos Lagoon and Estuary system in southern Brazil for the investigation of nutrients, primary production and faecal bacteria. The model has been evaluated for use as a predictive tool to aid the decision making process for the rehabilitation and management of the shallow embayment of Saco da Mangueira adjacent to the city of Rio Grande in the lower Patos Estuary. This bay is one of several shallow areas bordering the …