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Ensemble: 2003-11-24 – Chamber Orchestra

Orchestra concert performed at the UNT College of Music Concert Hall. Conducted by Mee-Ah Lo, Eun Young Park, and Stacy Weill in partial fulfillment of the Master of Music (MM) degree. Conducted by Ai Kuang Sun in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: November 24, 2003
Creator: University of North Texas. Chamber Orchestra.
Object Type: Sound
System: The UNT Digital Library
Process environmental philosophy (open access)

Process environmental philosophy

A process-information approach is examined as a foundation for an environmental philosophy that is dynamic and elastic, with particular emphasis on value, beauty, integrity and stability supporting Aldo Leopold's vision. I challenge one of the basic assumptions of Western philosophy, namely the metaphysical primacy of substance. The classical, medieval and modern metaphysics of substance is presented with particular attention given the paradoxes of substance. Starting from the philosophy of Heraclitus, relatively ignored by the Western tradition of philosophy, a process philosophy is developed as an alternative to standard metaphysical attitudes in philosophy. A possible resolution of Zeno's paradoxes leads to consideration of other paradoxes of substance metaphysics. It is argued that substance metaphysics is incompatible with evidence found in the shifting paradigms of ecology and general science. Process philosophy is explored as a basis for an environmental philosophy, attempting to put the environment back into philosophy.
Date: May 2003
Creator: Corbeil, Marc J.V.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Developmental Patterns of Metabolism and Hematology in the Late Stage Chicken Embryo (Gallus Domesticus) at Two Incubation Temperatures. (open access)

Developmental Patterns of Metabolism and Hematology in the Late Stage Chicken Embryo (Gallus Domesticus) at Two Incubation Temperatures.

How temperature affects physiological development in the chicken embryo is unknown. Embryos incubated at 38°C or 35°C showed no difference in growth or survival. The time to hatching was longer in 35°C than 38°C embryos (23.7 vs. 20.6 days), but unaffected was the relative timing of appearance of developmental landmarks (internal, external pipping). At stage 43-44, 38°C embryos maintained oxygen consumption around 1 mL/g/h despite acute temperature reduction (suggesting thermoregulatory maturation), unlike 35°C embryos. In 35°C embryos the lower oxygen-carrying capacity and temperature insensitive blood O2 affinity (P50 about 30 mmHg) may restrict O2 delivery to tissues, limiting metabolism during decreased ambient temperature. Reduced incubation temperature retards normal hematological and thermoregulatory development.
Date: May 2003
Creator: Black, Juli
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Evaluation of MPLS Enabled Networks

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Recent developments in the Internet have inspired a wide range of business and consumer applications. The deployment of multimedia-based services has driven the demand for increased and guaranteed bandwidth requirements over the network. The diverse requirements of the wide range of users demand differentiated classes of service and quality assurance. The new technology of Multi-protocol label switching (MPLS) has emerged as a high performance and reliable option to address these challenges apart from the additional features that were not addressed before. This problem in lieu of thesis describes how the new paradigm of MPLS is advantageous over the conventional architecture. The motivation for this paradigm is discussed in the first part, followed by a detailed description of this new architecture. The information flow, the underlying protocols and the MPLS extensions to some of the traditional protocols are then discussed followed by the description of the simulation. The simulation results are used to show the advantages of the proposed technology.
Date: May 2003
Creator: Ratnakaram, Archith
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Feminist Design Methodology: Considering the Case of Maria Kipp (open access)

Feminist Design Methodology: Considering the Case of Maria Kipp

This thesis uses the work and career of the textile designer Maria Kipp to stage a prolegomena concerning how to write about a female designer active during the middle of the twentieth century. How can design historians incorporate new methodologies in the writing of design history? This thesis explores the current literature of feminist design history for solutions to the potential problems of the traditional biography and applies these to the work and career of Kipp. It generates questions concerning the application of methodologies, specifically looking at a biographical methodology and new methodologies proposed by feminist design historians. Feminist writers encourage scholarship on unknown designers, while also they call for a different kind of writing and methodology. The goal of this thesis is to examine how these new histories are written and in what ways they might inspire the writing of Kipp into design history.
Date: December 2003
Creator: Lawrence, Anne
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Register Unification in Light of Twentieth-Century Vocal Pedagogy

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The registers of the singing voice, as commonly understood by singers, refer to the different vocal qualities induced by adjustments at the level of the larynx and of the vocal tract. This explains why register unification can be approached either one or a combination of the following procedures: (1) resonance alignment through vowel modification, (2) register alignment through intensity exercises. The wide-spread acceptance of vowel modification has made singers reluctant in exploring other avenues of register development. If registers are laryngeally derived, there should be another way of register unification, which directly addresses the coordination of the laryngeal muscles. In support of this argument, this thesis investigates the teaching practices of a group of twentieth-century American voice teachers, who rely on intensity manipulation as the primary means for enhancing the register adjustments. Intensity exercises such as the messa di voce has long been practiced in historical pedagogy, but it is not until now that voice science confirmed its significance in register coordination.
Date: August 2003
Creator: Tan, Haidee Lynn C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Effects of Web-based Instruction in High School Chemistry.

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The intent of this study is to identify correlations that might exist between Web-based instruction and higher assessment scores in secondary education. The study framework was held within the confines of a public high school chemistry classroom. Within this population there were students identified as gifted and talented (GT) as well as those without this designation. These two classifications were examined for statistically higher assessment scores using a two-tailed t-test. Results indicated that females outperformed males on pre- and post- instructional unit tests. All subgroups improved their logical-thinking skills and exhibited positive attitudes towards Web-based instruction. In general, Web-based instruction proved beneficial to improving classroom performance of all GT and non-GT groups as compared to traditional classroom instruction.
Date: May 2003
Creator: Stratton, Eric W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Characterization of Iron Oxide Deposits Formed at Comanche Peak Steam Electric Station

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The presence of deposits leading to corrosion of the steam generator (SG) systems is a major contributor to operation and maintenance cost of pressurized water reactor (PWR) plants. Formation and transport of corrosion products formed due to the presence of impurities, metallic oxides and cations in the secondary side of the SG units result in formation of deposits. This research deals with the characterization of deposit samples collected from the two SG units (unit 1 and unit 2) at Comanche Peak Steam Electric Station (CPSES). X-ray diffraction (XRD), Fourier transform infrared spectrophotometry (FTIR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) techniques have been used for studying the compositional and structural properties of iron oxides formed in the secondary side of unit 1 and unit 2. Magnetite (Fe3O4) was found to be predominant in samples from unit 1 and maghemite (g-Fe2O3) was found to be the dominant phase in case of unit 2. An attempt has been made to customize FTIR technique for analyzing different iron oxide phases present in the deposits of PWR-SG systems.
Date: May 2003
Creator: Namduri, Haritha
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Synthesis and Properties of Novel Cage-Annulated Crown Ethers

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Three cage-functionalized polyoxacrown ethers (9, 10 and 12) and four novel cage-functionalized polyoxamonoazacrown ethers (18, 20, 25 and 29) that contain 3,5-disubstituted-4-oxahexacyclo[5.4.0.02,6.03,10.05,9.08,11]dodecane ("oxahexacyclic") moiety have been synthesized and their respective alkali metal picrate extraction profiles along with that of three analogues 13, 14 and 21 have been obtained. The observed avidities and selectivities of the host molecules toward complexation and transport of alkali metal picrates can be related to the size and shape of their respective macrocyclic cavity and the number of donor atoms. The effect of N-alkyl substitution on the complexation properties of azacrown ethers has been studied. The avidity of N-Et azacrown ethers toward complexation with alkali metal cations is generally higher than that of the corresponding non-N-alkylated hosts. However, the presence of an N-Et group appears to have a negligible effect upon their relative selectivities in their regards. The effect of pH on extraction process was studied; it was thereby determined that the alkali metal picrate extraction experiments are best performed at high pH (ca. 11-12).
Date: May 2003
Creator: Huang, Zilin
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Personality Correlates of Eating Disorder Symptomatology in a Nonclinical Sample of Female Undergraduates

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Research indicates the existence of an eating disorder continuum. The two-component model of disordered eating suggests that certain personality traits may increase an individual's vulnerability to develop more severe variants of disordered eating symptomatology. The present study investigates pre-clinical elevations on a measure of personality based on the Five-Factor Model (FFM) and pre-clinical elevations on a measure of eating disorder symptomatology in a sample of nonclinical undergraduates. The personality dimensions Neuroticism, Extraversion, and Agreeableness accounted for 7% of the variability in Body Dissatisfaction. Subcomponents comprising the personality dimensions of the FFM as determined by Saucier (1998) (see Appendix A) were analyzed. The Self-Reproach and Intellectual Interests subcomponents were the strongest predictors of Drive for Thinness and Body Dissatisfaction. The subcomponent Sociability was the strongest predictor of Bulimia. Findings present implications for prevention and treatment interventions. Longitudinal studies are needed to determine the temporal directionality of personality and disturbed eating.
Date: May 2003
Creator: Baker, Kristine Genovese
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Comparative Bioavailability of Dietary and Dissolved Cadmium to Freshwater Aquatic Snails

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Heavy metal bioaccumulation in aquatic organisms may occur through direct or indirect uptake routes. Research indicates that the significance of uptake route varies with contaminant and organism exposed. The relative importance of different metal sources in aquatic systems was investigated by exposing freshwater snails to dietary or dissolved sources of cadmium. Snails were exposed to control, contaminated food only, contaminated water only, and contaminated food and water treatments. During the 15-day exposure, samples were taken to determine Cd concentration in snail soft tissue, snail shell, algal food, and overlying water. Analyses of snail soft tissue and shells indicate that exposure route significantly affects Cd concentrations in the tissues. In both cases, dissolved Cd is the primary contributor to metal body burden.
Date: December 2003
Creator: White, Jessica C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

An Analysis of Motivational Cues in Virtual Environments.

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Guiding navigation in virtual environments (VEs) is a challenging task. A key issue in the navigation of a virtual environment is to be able to strike a balance between the user's need to explore the environment freely and the designer's need to ensure that the user experiences all the important events in the VE. This thesis reports on a study aimed at comparing the effectiveness of various navigation cues that are used to motivate users towards a specific target location. The results of this study indicate some significant differences in how users responded to the various cues.
Date: December 2003
Creator: Voruganti, Lavanya
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Improved Approximation Algorithms for Geometric Packing Problems With Experimental Evaluation

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Geometric packing problems are NP-complete problems that arise in VLSI design. In this thesis, we present two novel algorithms using dynamic programming to compute exactly the maximum number of k x k squares of unit size that can be packed without overlap into a given n x m grid. The first algorithm was implemented and ran successfully on problems of large input up to 1,000,000 nodes for different values. A heuristic based on the second algorithm is implemented. This heuristic is fast in practice, but may not always be giving optimal times in theory. However, over a wide range of random data this version of the algorithm is giving very good solutions very fast and runs on problems of up to 100,000,000 nodes in a grid and different ranges for the variables. It is also shown that this version of algorithm is clearly superior to the first algorithm and has shown to be very efficient in practice.
Date: December 2003
Creator: Song, Yongqiang
Object Type: Thesis or Dissertation
System: The UNT Digital Library

When Reality Was Surreal: Lee Miller's World War II War Correspondence for Vogue

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During World War II, Lee Miller was an accredited war correspondent for Vogue magazine. Miller was trained as a surrealist photographer by Man Ray, and her wartime work, both photographic and written, is indicative of a combination of journalism and surrealism. This thesis examines Lee Miller's war correspondence within the context of Vogue magazine, establishing parallels between the photographs and writing to determine how surrealism informs it stylistically and ideologically. Using surrealist techniques of juxtaposition and an unmanipulated photographic style, and the surrealist concepts of the Marvelous and Convulsive Beauty, Miller presented the war as a surreality, or a surreal reality. This study concludes by using Miller's approach to suggest a new concept of journalistic practice: surrealist journalism.
Date: December 2003
Creator: Rose, Josh
Object Type: Thesis or Dissertation
System: The UNT Digital Library

OLAP Services

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On-line Analytical Processing (OLAP) is a very interesting platform to provide analytical power to the data present in the database. This paper discusses the system designed which handles integration of data from two remote legacy reservation systems to merge as one Integrated database server and also the design of an OLAP database and building an OLAP cube for the data warehousing. OLAP cube is useful for analysis of data and also for making various business decisions. The Data Transformation Services (DTS) in the Microsoft® SQL Server 2000 is used to integrate as a package the collection of data and also for refreshing data in the databases. On-line Analytical Processing (OLAP) cube is designed using Microsoft® Analysis Server.
Date: December 2003
Creator: Sanghvi, Rajendra
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Painting with Clay

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The body of work created during this exploration indicates that painting approach can actively integrate with the clay element. The main point is the surface manipulation during this process. There are four factors relate to this manipulation: timing, action, style, and size. Overall, the painting approach can be modified to create a truly active relationship with clay element. The final touch by the fire and glazing techniques reflect paintings approach may be used in a variety way to decorate the clay element without any limits. Moreover, the painting approach need not be subordinate to the clay element. It can be used not only to complement the clay, but also to enhance any given clay pieces no matter what the shape is.
Date: December 2003
Creator: Pan, Yi-Tze
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Web Services for Libraries

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Library information systems use different software applications and automated systems to gain access to distributed information. Rapid application development, changes made to existing software applications and development of new software on different platforms can make it difficult for library information systems to interoperate. Web services are used to offer better information access and retrieval solutions and hence make it more cost effective for libraries. This research focuses on how web services are implemented with the standard protocols like SOAP, WSDL and UDDI using different programming languages and platforms to achieve interoperability for libraries. It also shows how libraries can make use of this new technology. Since web services built on different platforms can interact with each other, libraries can access information with more efficiency and flexibility.
Date: December 2003
Creator: Manikonda, Sunil Prasad
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Self-Optimizing Dynamic Finite Functions

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Finite functions (also called maps) are used to describe a number of key computations and storage mechanisms used in software and hardware interpreters. Their presence spread over various memory and speed hierarchies in hardware and through various optimization processes (algorithmic and compilation based) in software, suggests encapsulating dynamic size changes and representation optimizations in a unique abstraction to be used across traditional computation mechanisms. We developed a memory allocator for testing the finite functions. We have implemented some dynamic finite functions and performed certain experiments to see the performance speed of these finite functions. We have developed some simple but powerful application programming interfaces (API) for these finite functions.
Date: December 2003
Creator: Jeripothula, Ramesh
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Performance Evaluation of Data Integrity Mechanisms for Mobile Agents

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With the growing popularity of e-commerce applications that use software agents, the protection of mobile agent data has become imperative. To that end, the performance of four methods that protect the data integrity of mobile agents is evaluated. The methods investigated include existing approaches known as the Partial Result Authentication Codes, Hash Chaining, and Set Authentication Code methods, and a technique of our own design, called the Modified Set Authentication Code method, which addresses the limitations of the Set Authentication Code method. The experiments were run using the DADS agent system (developed at the Network Research Laboratory at UNT), for which a Data Integrity Module was designed. The experimental results show that our Modified Set Authentication Code technique performed comparably to the Set Authentication Code method.
Date: December 2003
Creator: Gunupudi, Vandana
Object Type: Thesis or Dissertation
System: The UNT Digital Library

James Earl Rudder: A Lesson in Leadership

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This thesis is the about the life of Rudder. The emphasis of this work, however, is that Rudder was successful primarily because of his character and leadership style. Much of the study was drawn from primary sources. Secondary sources were also consulted. This thesis opens with a brief Introduction, which discusses the need for this work. Chapter 1 discusses Rudder's life prior to WW II, emphasizing particular characteristics that benefited his leadership ability. Chapter 2 examines the 2nd Ranger Battalion's transformation under Rudder's leadership and guidance. Chapter 3 chronicles the 2nd Ranger Battalion's assault on the Pointe du Hoc battery, ending in December 1944, when Col. Rudder was reassigned to the 109th Infantry Regiment. Moreover, the controversy surrounding the Ranger's mission is also examined in this chapter. Chapter 4 describes Col. Rudder's leadership with the 109th in the Battle of the Bulge. A chapter accounting Rudder's political career and leadership follows. Chapter 6 examines his term as chancellor and president of the Texas A&M University system, until his death in 1970, and the major institutional changes that he enacted during his tenure, which resulted in A&M becoming the respected research university it is today. This significance and recapitulation of Rudder's …
Date: December 2003
Creator: Bean, Christopher B.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Job Embeddedness as a Predictor of Voluntary Turnover: Validation of a New Instrument

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Voluntary turnover has become a problem for many organizations in today's society. The cost of this turnover reaches beyond organizational impact, but also affects the employees themselves. For this reason, there has been a plethora of research conducted by both academicians and practitioners on the causes and consequences of voluntary turnover. The purpose of this study is to test the validity and generalizability of the job embeddedness model of voluntary turnover to the information technology (IT) industry. The IT field has been plagued with high turnover rates in recent years. In this study, the job embeddedness model (Mitchell et al., 2001) is applied to a population sample consisting of health care information technology employees.
Date: December 2003
Creator: Besich, John S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Relationship of Team Training Components to Perceptions of Team Performance (open access)

Relationship of Team Training Components to Perceptions of Team Performance

The purpose of this research study was to identify the specific components of team training that contribute most to a team's ability to perform effectively. The analysis conducted involved examining the relationship between the Training Support System Survey (Hall, 1998) along with the Training Strategies and Training Content sub-scales, and the overall measure of team performance from Beyerlein's (1996) Perceptions of Team Performance survey. Results were mostly inconclusive, due to limitations of the research. However, a few interesting findings were found related to team training for different types of teams. In addition, this research is helpful in moving toward a better understanding of the relationship between team training and team performance and pointing toward the need for additional research in this area.
Date: December 2003
Creator: Willbanks, Kristi D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Differences in Depressive Symptoms as a Function of Gender, Roles, and Rumination (open access)

Differences in Depressive Symptoms as a Function of Gender, Roles, and Rumination

Research indicates that women are more likely to experience depression than are men. The current study examined the effects of gender, socialized gender roles, rumination, and neuroticism on symptoms of depression in young adults. As predicted, rumination mediated the relationship between gender and depression, and socialized gender roles had a greater explanatory power for rumination, neuroticism, and depression than did gender. Contrary to predictions, rumination did not mediate neuroticism's effects on depression. Structural equation modeling reveled that rumination-on-sadness positively predicted neuroticism and depression. However, rumination-in-general, while positively predicting neuroticism, negatively predicted symptoms of depression. Finally, once socialized gender roles, rumination, and neuroticism were controlled, male gender was modestly predictive of depression.
Date: December 2003
Creator: Wupperman, Peggilee
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The aquatic insect communities of Holbrook Creek and Cochetopa Creek in Colorado. (open access)

The aquatic insect communities of Holbrook Creek and Cochetopa Creek in Colorado.

The first objective for this problem in lieu of thesis project was to gather, identify to the lowest practical taxonomic level and organize all available aquatic insects collected from high altitude Colorado aquatic systems during the summers of 1994, 1996, 1998, and 2002 for the University of North Texas Environmental Science Field Course (BIOL 5650). The curated collection will be housed in the Elm Fork Natural History Museum, located at the University of North Texas. The second objective was to provide a summary and discussion of the occurrence and distribution of the aquatic insects collected from Mt. Blanca in 1994, 1996, and 1998 and to create a taxa list of aquatic insects collected from Cochetopa Creek during the summer of 2002.
Date: December 2003
Creator: Wallace, Mark Allen
Object Type: Thesis or Dissertation
System: The UNT Digital Library