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366 Matching Results
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A Schenkerian Analysis of Beethoven's E Minor Piano Sonata, Opus 90
This thesis examines the history and origins of Beethoven's E minor Piano Sonata and examines the possibility of the programmatic conception of the work. Dedicated to Beethoven's friend Count Moritz Lichnowsky, the sonata may have been inspired by the Count's illicit affair with his future wife, the singer and actress Josefa Stummer. Providing a thorough Schenkerian analysis of both movements, the inner harmonic structure of the composition is revealed and explained. The author also investigates and details the unpublished original analyses of the composition by Heinrich Schenker, Erika Elias, and Hans Weisse. Both English and German language sources are incorporated into a comprehensive examination of Beethoven's Piano Sonata, op. 90.
Date:
May 2010
Creator:
Treber, Stefan L.
System:
The UNT Digital Library
Self-Objectification and Sport Participation: Do the Gendered Makeup and Competitive Level of the Team Matter?
The purposes of this study were to (a) investigate differences in self-objectification, self-surveillance, body shame, and flow among female athletes on all-women's and coed ultimate frisbee teams at different competitive levels, and (b) examine the objectification theory model across groups. Participants (n = 112) completed online surveys including a demographic questionnaire, trait and state versions of the Self-Objectification Questionnaire, Body Surveillance and Body Shame subscales of the Objectified Body Consciousness Scale, and the Flow State Scale. No differences in self-objectification, self-surveillance, or body shame were found, although highly competitive athletes experienced more flow than lower competitive teams. Relationships were found between self-objectification, self-surveillance, and body shame, but not for flow, partially supporting the objectification theory model.
Date:
May 2010
Creator:
Ede, Alison
System:
The UNT Digital Library
Sensitization of Lanthanides and Organic-Based Phosphorescence via Energy Transfer and Heavy-Atom Effects
The major topics discussed are the phosphorescence sensitization in the lanthanides via energy transfer and in the organics by heavy atom effects. The f-f transitions in lanthanides are parity forbidden and have weak molar extinction coefficients. Upon complexation with the ligand, ttrpy (4'-p-Tolyl-[2,2':6',2"]-terpyridine) the absorption takes place through the ligand and the excitation is transferred to the lanthanides, which in turn emit. This process is known as "sensitized luminescence." Bright red emission from europium and bright green emission from terbium complexes were observed. There is ongoing work on the making of OLEDs with neutral complexes of lanthanide hexafluoroacetyl acetonate/ttrpy, studied in this dissertation. Attempts to observe analogous energy transfer from the inorganic donor complexes of Au(I) thiocyanates were unsuccessful due to poor overlap of the emissions of these systems with the absorptions of Eu(III) and Tb(III). Photophysics of silver-aromatic complexes deals with the enhancement of phosphorescence in the aromatics. The heavy atom effect of the silver is responsible for this enhancement in phosphorescence. Aromatics such as naphthalene, perylene, anthracene and pyrene were involved in this study. Stern Volmer plots were studied by performing the quenching studies. The quenchers employed were both heavy metals such as silver and thallium and lighter …
Date:
May 2010
Creator:
Arvapally, Ravi K.
System:
The UNT Digital Library
Social, Demographic, and Institutional Effects on African American Graduation Rates in U.S. Colleges and Universities.
Improving the retention and graduation of African Americans and other minority groups in higher education is an important but highly politicized issue on college and university campuses. Prior studies emphasize the relationship between minority retention and achievement, cultural diversity, and racial policies and climates at predominantly White colleges and universities in the United States. In response to the need for further research, the effects of institutional actions related to diversity, minority group and African American retention, and social integration initiatives on African American graduation rates were examined for a national sample of United States (U.S.) colleges and universities. From a potential list of 7,018 colleges and universities, 2,233 met the inclusion criteria for the study. But necessary and complete information from national directories and the census could only be found for the final sample of 1,105. After dropping 30 outliers, several multiple regression analyses identified the institutional actions, social, and demographic factors that best predicted graduation rates. Public U.S. colleges and universities located in the Midwest region had lower African American graduation rates than private colleges and universities located in the South. Higher African American graduation rates occurred in colleges and universities with Black cultural centers, higher first-year retention rates, …
Date:
May 2010
Creator:
Wright, LaQueta L.
System:
The UNT Digital Library
Speaking up: Applying the Theory of Planned Behavior to Bystander Intervention in Racism
Because racism remains a significant issue in society, and many victims of racism do not speak up for themselves when faced with racism, it is important to explore how witnesses to racist events may react and intervene upon observing racism toward others. Thus, the current study explored how participants (bystanders) reacted verbally to racist comments made by a confederate during a partner activity, as well as how participants discussed their reactions in post-interviews. Forty college students participated in the study, and three of the participants verbally intervened upon hearing the racist statements. Ajzen's theory of planned behavior was utilized as a framework, and examination of the results indicated that components of the theory as well as social constructions of racism and appropriateness of intervention behaviors affect intervention outcomes. Theoretical, methodological, and practical implications, as well as suggestions for future research are included.
Date:
May 2010
Creator:
Hall, Camille Ashley
System:
The UNT Digital Library
Stretching the Flexible Myosin II Subfragment Using the Novel Gravitational Force Spectroscope, and the Uncoiling of S2
Familial Hypertrophic cardiomyopathy (HCM) causes ventricle walls to thicken and often leads to sudden death especially in adults. Mutations in the subfragment 2 (S2) of β-cardiac myosin are implicated in the genetic disorder. This S2 region is a coiled-coil rod region resulting from the dimeric form of myosin II. It has been proposed that an elastic quality allows normal S2 to absorb force during the powerstroke according to the sliding filament model. To test the flexibility of single molecules of S2 against levels of physiological force, the Gravitational Force Spectrometer (GFS) is being developed. This novel system employs a standard microscope on an equatorial mount that allows the spectrometer to be rotated freely in space. Stationary glass beads are attached to a microscope slide where the molecule is tethered between the stationary bead and a smaller mobile bead. The GFS is oriented so that the force of gravity can act on the mobile bead and so impart a small force to the tethered subfragment. Additionally, a video system in conjunction with ImageJ software makes a distance measurement of the molecule possible with a resolution of around 11 nm. The S2 can be stretched parallel or perpendicular to the coiled coil …
Date:
May 2010
Creator:
Dunn, James W.
System:
The UNT Digital Library
Student characteristics and self-concept of secondary career and technical education students in a north central Texas region
Self-concept, discussed as a scholarly topic since the time of Socrates and Plato, is an important theoretical construct in education because self-concept is considered to be a desirable trait and a facilitator of positive future behavior. The purpose of this study was to examine the relationship between the characteristics of students enrolled in career and technical education (CTE) programs and students' self-concept scores as measured by specific subscales from the Self-Description Questionnaire (SDQ). A total of 196 male and 89 female secondary students (Grades 9-12) enrolled in arts, audio/video technology and communications cluster courses in North Central Texas school districts participated in the study. Student characteristic variables of interest were age, gender, CTE program enrollment, and participation in CTE. The self-concept subscales analyzed were General, Academic, Verbal, Math, and Problem Solving. A canonical correlation analysis was conducted using the four student characteristic variables as predictors of the five self-concept variables to evaluate the multivariate shared relationship between the two variable sets. The full model across all functions explained about 23% of the variance between the variable sets. Function 1 explained 15% of the shared variance and Function 2 explained 7% of the variance that remained. This study detected a relationship …
Date:
May 2010
Creator:
Cox, Nancy Lynne
System:
The UNT Digital Library
Student Engagement Theory: A Comparison of Jesuit, Catholic, and Christian Universities
This research study analyzed the results of the Jesuit Universities Consortium in comparison with the results of the Catholic Colleges and Universities and the Council for Christian Colleges Consortia as measured by the 2005 National Survey of Student Engagement (NSSE) in order to determine and identify any statistically significant differences between the consortia. One-way ANOVA analyses and Tukey HSD post hoc comparisons were conducted on the data from freshmen/first year students and seniors/fourth year students on each of the five clusters of the NSSE to determine any statistically significant difference and, subsequently, the effect size of any found differences. The study found that there were statistically significant differences on the following: 1) freshmen/first year students in the Jesuit Universities Consortium and the freshmen/first year students in the Council for Christian Colleges and Universities Consortium on the NSSE cluster of Academic Challenge, 2) freshmen/first year students in the Jesuit Universities Consortium and the freshmen/first year students in the Catholic Colleges and Universities Consortium on the NSSE cluster of Enriching Educational Experiences, 3) freshmen/first year students in the Jesuit Universities Consortium and the freshmen/first year students in the Council for Christian Colleges and Universities Consortium on the NSSE cluster of Supportive Campus …
Date:
May 2010
Creator:
Williamson, Robin Marie
System:
The UNT Digital Library
A Study of Anti-collision Multi-tag Identification Algorithms for Passive RFID Systems
The major advantages of radio frequency identification (RFID) technology over barcodes are that the RFID-tagged objects do not require to be in line-of-sight with the reader for their identification and multiple objects can be read simultaneously. But when multiple objects are read simultaneously there is always a problem of collision which reduces the efficiency of the system. This thesis presents a comprehensive study of the dynamic framed slotted ALOHA (DFSA)-based anti-collision multi-tag identification algorithms for passive RFID system. Performance of various DFSA algorithms is compared through extensive simulation results. In addition, a number of simple performance improvement techniques have also been investigated in this thesis, including improved estimation techniques for the number of tags in each read cycle and a low-complexity heuristic stopping criterion that can be easily implemented in the practical system.
Date:
May 2010
Creator:
Kamineni, Neelima
System:
The UNT Digital Library
A Study of Student's Perceptions of Blended Learning Environments at a State-Supported Postsecondary Institution
The purpose of this study was to conduct exploratory research regarding students' perceptions of blended learning environments at a state supported postsecondary institution. Specifically investigated were students' overall perceptions of blended learning environments, the reasons they chose to take a blended course, and whether generational differences existed in students' affected perceptions. An electronic survey was distributed to students enrolled in blended learning courses at the end of the spring 2009 term.
Date:
May 2010
Creator:
Shaw, Joanna G.
System:
The UNT Digital Library
A study of the Violin Concerto in D Minor by Ralph Vaughan Williams
The focus of this study is to provide a clear understanding of Vaughan Williams' Violin Concerto in D Minor. In terms of form and compositional technique, this concerto is particularly challenging, because of Vaughan Williams' use of rhythmic motives and modes. This study is undertaken through an analysis. For a better understanding, a historical background, including overall form of each movement and key relationships, is explored and discussed. Then, Vaughan Williams' use of a ritornello-like motive, melody and modality as unifying elements is also identified and examined. In identifying the major features of Vaughan Williams' compositional style of this violin concerto, musicians will be able to understand better his unique musical expression. This study may serve as an introduction to the music of Vaughan Williams for musicians and society worldwide. It is hoped that it will motivate all violinists to perform this concerto more frequently.
Date:
May 2010
Creator:
Kim, Si Hyung
System:
The UNT Digital Library
Stylistic Elements within the Texture and Formal Structure of Ernst von Dohnányi's Four Rhapsodies, op. 11
Hungarian pianist, composer, conductor, teacher and administrator, Ernst von Dohnányi (Ernö Dohnányi in Hungarian), was considered one of the most versatile musicians and the first architect of Hungary's musical culture in the late nineteenth and early twentieth-century. Dohnányi composed the Four Rhapsodies, op. 11, between 1902 and 1903, and among his many piano compositions, op. 11 are regarded as some of his most substantial works. Without directly imitating the earlier works of Liszt and Brahms, Dohnányi contributed to the rhapsody tradition with op. 11 by using his own unique stylistic compositional elements in the textural and formal structure. Texture and form are the most indicative characteristics of his rhapsodic language because of the improvisational nature that permeates his compositional style in the rhapsodies. In this dissertation the works are examined from within its textural and formal structure. Within texture, rhythm and accompanimental figurations are examined. Each rhapsody's structural organization, including references to eighteenth-century forms, and the cyclical elements in the work is analyzed. Background information on Dohnányi and a brief history of the rhapsody in the 19th century is also included.
Date:
May 2010
Creator:
Hwang, So Myung (Sonia)
System:
The UNT Digital Library
Teaching Points in Comparing the Great Depression to the 2008-2009 Recession in the United States
For an introductory macroeconomics course, the discussion of historical relevance helps foster important learning connections. By comparing the Great Depression to the 2008-2009 recession, a macroeconomics instructor can provide students with connections to history. This paper discusses the major causes of each recession, major fiscal policy and monetary policy decisions of both recessions, and the respective relevance in teaching the relationship of each policy to gross domestic product. The teaching points addressed in this paper are directed towards an introductory college-level macroeconomics course, incorporating a variety of theories from historical and economic writers and data from government and central bank sources. A lesson plan is included in an appendix to assist the instructor in implementing the material.
Date:
May 2010
Creator:
Killian, Tiffany Noel
System:
The UNT Digital Library
This Creature, Bride of Christ
This Creature, Bride of Christ is a composition for soprano, alto flute, viola, marimba, and computer running custom software for live interactive performance in the Max/MSP environment. The work is a setting of excerpts from The Book of Margery Kempe, an early autobiographical manuscript depicting the life of a Christian mystic. The thesis discusses the historical, sociological, and musical context of the text and its musical setting; the use of borrowed materials from music of John Dunstable, Richard Wagner, and the tradition of change ringing; and the technologies used to realize the computer accompaniment. A score of the work is also included in the appendix.
Date:
May 2010
Creator:
Bober, Nicholas Bradburn
System:
The UNT Digital Library
Three Topics in Descriptive Set Theory
This dissertation deals with three topics in descriptive set theory. First, the order topology is a natural topology on ordinals. In Chapter 2, a complete classification of order topologies on ordinals up to Borel isomorphism is given, answering a question of Benedikt Löwe. Second, a map between separable metrizable spaces X and Y preserves complete metrizability if Y is completely metrizable whenever X is; the map is resolvable if the image of every open (closed) set in X is resolvable in Y. In Chapter 3, it is proven that resolvable maps preserve complete metrizability, generalizing results of Sierpiński, Vaintein, and Ostrovsky. Third, an equivalence relation on a Polish space has the Laczkovich-Komjáth property if the following holds: for every sequence of analytic sets such that the limit superior along any infinite set of indices meets uncountably many equivalence classes, there is an infinite subsequence such that the intersection of these sets contains a perfect set of pairwise inequivalent elements. In Chapter 4, it is shown that every coanalytic equivalence relation has the Laczkovich-Komjáth property, extending a theorem of Balcerzak and Głąb.
Date:
May 2010
Creator:
Kieftenbeld, Vincent
System:
The UNT Digital Library
Tracing the Path of Sustainable Development through Major International Conferences: A Brief History and Overview of Sustainable Development 1964-2002
Starting with the idea that unsustainable practices contribute to issues of social justice and poverty as much as to ecological issues. Chapter 1 traces the origins of the terms sustainable and development individually to see how it is that they came together. Chapter 2 traces the major international conferences and documents and their use of the terms sustainable development. Chapter 3 takes a phenomenology approach to get a bit deeper into sustainable development. I examine the most commonly cited definition of sustainable development as well as a broader definition of sustainable development as a process of change. Chapter 4 examines the field of environmental ethics and argues that constant debates over value distract policy makers from the central question of what morally motivates people to support environmental ethics views. Chapter 5 examines the institution and regime building process, and the conclusion offers three questions to measure our progress.
Date:
May 2010
Creator:
Dunn, Benjamin P.
System:
The UNT Digital Library
Understanding Quality of Life in Older Adults
I analyzed the 2004 and 2006 Health and Retirement Study data to test structural equation models of the quality of life (QOL) construct. The participants (N = 1352) were non-institutionalized individuals aged 42 and older (M = 65.70, SD = 10.88), with an average education of 12.73 years (SD = 2.96) and of varied ethnicities. The results indicated that physical functioning, affective experience, life satisfaction and social support could serve as indicators for a second order QOL factor. Furthermore, the developed QOL model explained 96% of the variance of the CASP-19 (Control, Autonomy, Self-realization and Pleasure), a QOL measure that reflects fulfillment of psychological needs. The results also indicated that Depression and Life Satisfaction are related through reciprocal causation and that Physical Functioning is more likely to cause a change in Depression than the reverse. The results suggest that QOL is a complex, multidimensional concept that should be studied at different levels of analysis.
Date:
May 2010
Creator:
Cardona, Laura A.
System:
The UNT Digital Library
United States Psychological Operations in Support of Counterinsurgency: Vietnam, 1960 to 1965.
This thesis describes the development of psychological operations capabilities, introduction of forces, and the employment in Vietnam during the period 1960-1965. The complex interplay of these activities is addressed, as well as the development of PSYOP doctrine and training in the period prior to the introduction of ground combat forces in 1965. The American PSYOP advisory effort supported the South Vietnamese at all levels, providing access to training, material support, and critical advice. In these areas the American effort was largely successful. Yet, instability in the wake of President Ngo Dinh Diem's overthrow created an impediment to the ability of psychological operations to change behaviors and positively affect the outcome.
Date:
May 2010
Creator:
Roberts, Mervyn Edwin, III
System:
The UNT Digital Library
Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay
The objective of this study was to deploy a conceptual framework developed by M. Forbes using a geographic information system (GIS) approach to assess the functionality of wetlands in the Galveston Bay Area of Texas. This study utilized geospatial datasets which included National Wetland Inventory maps (NWI), LiDAR data, National Agriculture Imagery Program (NAIP) imagery and USGS National Land Cover data to assess the capacity of wetlands to store surface water and remove pollutants, including nitrogen, phosphorus, heavy metals, and organic compounds. The use of LiDAR to characterize the hydrogeomorphic characteristics of wetlands is a key contribution of this study to the science of wetland functional assessment. LiDAR data was used to estimate volumes for the 7,370 wetlands and delineate catchments for over 4,000 wetlands, located outside the 100-yr floodplain, within a 2,075 square mile area around Galveston Bay. Results from this study suggest that coastal prairie freshwater wetlands typically have a moderate capacity to store surface water from precipitation events, remove ammonium, and retain phosphorus and heavy metals and tend to have a high capacity for removing nitrate and retainremove organic compounds. The results serve as a valuable survey instrument for increasing the understanding of coastal prairie freshwater wetlands …
Date:
May 2010
Creator:
Enwright, Nicholas
System:
The UNT Digital Library
Using Web-Based Instruction to Teach Music Theory in the Piano Studio: Defining, Designing, and Implementing an Integrative Approach
This dissertation rationalizes the best use of Web-based instruction (WBI) for teaching music theory to private piano students in the later primary grades. It uses an integrative research methodology for defining, designing, and implementing a curriculum that includes WBI. Research from the fields of music education, educational technology, educational psychology, and interaction design and children receive primary consideration. A synthesis of these sources outlines several research-based principles that instructional designers can use to design a complete blended learning environment for use within the piano studio. In addition to the research-based principles, the precise methods of determining instructional tasks and implementing the program online are described in detail. A full implementation is then deployed, and piano teachers evaluate the extent to which the online program fulfills the research-based principles. This dissertation does not argue for the complete migration of theory instruction from traditional workbook approaches to an entirely Web-based medium but rather outlines the best use of face-to-face instruction, collaboration amongst students, teachers, and parents, and interaction with a Web-based program. This formative research provides a complete model of integrating WBI within the piano studio that can guide instructional designers and music educators.
Date:
May 2010
Creator:
Carney, Robert D.
System:
The UNT Digital Library
Virulence Factor Production in PyrE Mutants of Pseudomonas Aeruginosa
It has been shown previously in our lab that mutations in the pyrimidine pathway reduced the ability of Pseudomonas aeruginosa to produce virulence factors. Knockout mutations in pyrB, pyrC and pyrD genes of the pyrimidine pathway showed that virulence factor production was decreased. Pyoverdin, pyocyanin, hemolysin, iron chelation, motility, and adherence are all considered virulence factors. Here I further investigate the effects of mutations in the pyrimidine pathway by studying a pyrE mutant. I studied the effect of the pyrE mutation on the production of the above virulence factors. Just like the effect of pyrB, pyrC and pyrD mutations,the pyrE mutation also showed that the bacteria were deficient in producing virulence factors when compared to the wild type. The broader impact of this research would be the possibility of finding drugs that could treat patients infected with P. aeruginosa and possibly extend the lives of chronically infected patients with cystic fibrosis.
Date:
May 2010
Creator:
Niazy, Abdurahman
System:
The UNT Digital Library
The Vocal Pedagogy of Frederic Woodman Root
Frederic Woodman Root was a vocal pedagogue and writer of the late nineteenth century. He wrote over eighteen books on vocal pedagogy, and numerous articles on singing. Since his death, most of his works have fallen into obscurity. The purpose of this document was to codify the vocal pedagogy of Frederic Woodman Root, discussing his particularly thorough methodology, and to bring his methods back into the public eye. His method is broken down into the various components of basic musicianship, the General Principle, the Three Vowel Forms, registers, breathing, and agility. Examples from Root's exercises are included and discussed.
Date:
May 2010
Creator:
Grogan, David Christopher
System:
The UNT Digital Library
X, An Analytical Approach to John Chowning's Phoné
The analysis of computer music presents new challenges to the field of music theory. This study examines the fixed media composition Phoné by John Chowning from its aesthetic perspective, compositional theory and computer sound synthesis techniques. Fast Fourier Transform analyses are used to create spectrograms. The findings from the spectrograms are juxtaposed with compositional philosophies of John Chowning, Jean-Claude Risset, Pierre Schaeffer and Arnold Schoenberg and the techniques are represented via PureData patches.
Date:
May 2010
Creator:
Krämer, Reiner
System:
The UNT Digital Library
You are what you wear: The examination of fashion leadership and general leadership among African American and Caucasian American college students.
The purpose of this study was twofold. First, the study compared fashion personality characteristics and shopping behaviors of African-American and Caucasian-American college students. Secondly, this study examined characteristics of leadership in general, and fashion leadership specifically, on fashion personality characteristics. The fashion personality characteristics studied included fashion leadership, fashion involvement, shopping enjoyment, and fashion consciousness. The participants consisted of 268 African Americans and 239 Caucasian Americans from two universities in the United States. Ethnicity was found to be an influence on fashion personality characteristics and shopping behaviors in this study. African Americans in the sample were found to have higher levels of fashion personality characteristics and shopping behaviors than Caucasian Americans. Fashion leadership was found to be positively related to general leadership, fashion involvement, shopping enjoyment and fashion consciousness. General leadership was found to be positively related to fashion involvement, shopping enjoyment, fashion consciousness, academic classification level. However, there was no significant difference found between general leadership and age.
Date:
May 2010
Creator:
Angelo, Davette
System:
The UNT Digital Library