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Imitating Nature
Through my art I seek to communicate the continuing cycle of change that unites all life forms. I had to find methods of presentation and surface that would enhance my sculptural statements that I had begun to address. Utilizing salt, wood and low temperature sagger firing, resulted in softer, more natural appearing surfaces. These surfaces complimented and completed the organic forms with which I was working. The problems encountered in presentation were rectified by alternately contrasting the surfaces of the presentation with the surfaces of the pieces, while utilizing forms that echoed the natural forms of the pieces. The opposite approach also worked well, using natural presentation materials to create a sense of unity, and geometric bases for contrast. These methods resulted in an increased sense of energy, unity and completion in the work presented.
Date:
December 2002
Creator:
Holden, Linda K.
System:
The UNT Digital Library
Staff Development Methods for Planning Lessons with Integrated Technology
This study compared cooperative and individual staff development methods for planning lessons with integrated technology. Twenty-three teachers from one elementary school participated in the study. The sample was the entire population. Nine participants were assigned to the control group, and fourteen participants were assigned to the experimental group. Names of participants were randomly drawn to determine group assignment. Participants in the control group worked individually in all three staff development sessions, while participants in the experimental group chose a partner, with whom they worked cooperatively in all three staff development sessions. Each participant or pair of participants submitted a lesson plan prior to participation in three staff development sessions. Following the sessions, each participant or pair of participants submitted a lesson plan. Three independent raters rated lesson plans to determine the participants' respective levels on the Level of Technology Implementation Observation Checklist (Moersch, 2001). The ratings of the lesson plans submitted before the training were compared to those collected after the training using a two-by-two mixed model ANOVA. The occasion (pre- vs. post-test), group, and interaction variables were all statistically significant at the .1 level; however, only the occasion variable had a strong effect size. These data suggest that (1) …
Date:
December 2002
Creator:
Heine, Jennifer Miers
System:
The UNT Digital Library
Consonance, Tertian Structures and Tonal Coherence in Wladimir Vogel's Dodecaphonic World
Wladimir Vogel's (1896-1984) interest in twelve-tone composition began to develop in 1936 after hearing a series of lectures by Willi Reich, a music critic and supporter of the new music of the Second Viennese School. The transition for Vogel from a large-scale orchestral “classical” style, influenced by his study with Ferruccio Busoni in Berlin in the early 1920s, to a new technique involving dodecaphony is apparent in his instrumental writing, the third and fourth movements of the Konzert für Violine und Orchester (1937), as well as in his vocal writing, the Madrigaux for mixed a cappella choir (1938/39). Vogel's twelve-tone works exhibit tertian structures which are particularly emphasized by triads located as consecutive pitches within the rows. Emphasis on tertian structures are not limited to small-scale segmentation of the rows but can also be seen in the structural and tonal organization of complete movements and works. A primary example is the Konzert für Violoncello und Orchester (Cello Concerto) (1955) in which, on a smaller scale, the presentation of the row emphasizes both diminished and minor triads, and at the macro level, the structural triadic relationships unify passages within individual movements as well as the concerto as a whole. Since the …
Date:
December 2002
Creator:
Hale, Jacquelyn
System:
The UNT Digital Library
Gritos de la Frontera: Giving Voice to Tejano Contributions in the Formation of the Republic of Texas, 1700-1850
The intent of this thesis is to convey the distinctiveness and the contributions of Tejano culture in Texas. It focuses on the traditions of governance employed by Tejanos as well as their contributions to industry, economy and defense that Texas benefited from and still enjoys today. .given by Spain and México to Tejanos in establishing their settlements affected the development of a distinct Tejano culture. Furthermore, this study will also examine Anglo-Tejano interaction and Anglo American intentions toward Texas. It will also outline how Anglo Americans made determine efforts to wrest Texas away from Spain and México. Finally, the thesis examines Tejano cultural perseverance whose indelible imprint still resonates today.
Date:
December 2002
Creator:
Guzmán, Roberto
System:
The UNT Digital Library
Stability of Field Emitter Arrays to Oxygen Exposures
The purpose of these experiments was to determine the degradation mechanisms of molybdenum based field emitter arrays to oxygen exposures and to improve the overall reliability. In addition, we also evaluated the emission current stability of gold-coated field emitter arrays to oxygen exposures. oxygen at 1x10-6 torr was introduced into the chamber through a leak valve for different lengths of time and duty cycles. To ensure identical oxygen exposure and experimental measurement conditions, tips on half the area of the FEA were fully coated with gold and the other half were left uncoated. The emission current from the gold coated half was found to degrade much less than that from the uncoated half, in the presence of oxygen. Also in the absence of oxygen, the emission current recovery for the gold-coated side was much quicker than that for the uncoated side.
Date:
December 2002
Creator:
Godbole, Soumitra Kumar
System:
The UNT Digital Library
Rasa: Serenity, Valor, Love
The focus of this thesis is the conveyance of moods through clothes, the communication of feelings through fashion. The thesis illustrates how clothes speak, and the tools used to communicate a visual message. Three moods are used as examples: Serenity, Valor and Love. The thesis presents the author's design ability, creative personality, cultural background and technical skills. Sources of data range from personal experience to books on Cultural Studies, armor and mask making, Indian/ Asian dance and theatre, fabric design, fabric manipulation and websites on related topics. The chapters discuss background information of the author and the topic of research, and present each ensemble created to support the thesis. Through design details and photographs of the nine ensembles, the thesis demonstrates different techniques of achieving visual communication through clothes.
Date:
December 2002
Creator:
Ganguly, Deepa
System:
The UNT Digital Library
Students' and Teachers' Perceptions of Culturally Responsive Teaching: A Case Study of an Urban Middle School
This was a qualitative study that used the procedures of case study design while incorporating ethnographic techniques of interviewing and non-participant observation in classrooms with six selected students, six teachers, and eight interviews of selected administrators and staff members in one middle school in a large Texas urban school district. The purpose of this study was to understand the educational experiences and perceptions of selected immigrant students and their mainstream teachers. Following the method of case study design, the educational experiences of English Language Learner (ELL) students were examined in the naturally occurring context of the school and the classroom. Because the goal of case studies is to understand a given phenomenon from the perceptions of the participants (referred to as “emic” perspective) all participants were interviewed in-depth in order to understand their unique perceptions. The study took place during a five-month period in the spring of 2002. Data were analyzed concurrently during data collection and were framed by Geneva Gay's (2000) characteristics of culturally responsive teaching. The findings and interpretation of data are divided into three parts that encompass the results of the five research questions that guided this study. Part one presents the teachers' perceptions and addresses the …
Date:
December 2002
Creator:
Curtin, Ellen Mary
System:
The UNT Digital Library
Assessing the Effect of Inquiry-Based Professional Development on Science Achievement Tests Scores.
This study analyzed student test scores to determine if teacher participation in an inquiry-based professional development was able to make a statistically significant difference in student achievement levels. Test scores for objectives that assessed the critical thinking skills and problem-solving strategies modeled in a science inquiry institute were studied. Inquiry-based experiences are the cornerstones for meeting the science standards for scientific literacy. State mandated assessment tests measure the levels of student achievement and are reported as meeting minimum expectations or showing mastery for specific learning objectives. Students test scores from the Texas Assessment of Academic Skills Test (TAAS) for 8th grade science and the Biology End Of Course (EOC) exams were analyzed using ANCOVA, Chi Square, and Logistic Regression, with the Iowa Test of Basic Skills (ITBS) 7th Grade Science Subtest as covariate. It was hypothesized that the students of Inquiry Institute teachers would have higher scale scores and better rates of mastery on the critical thinking objectives than the students of non-Institute teachers. It was also hypothesized that it would be possible to predict student mastery on the objectives that assessed critical thinking and problem solving based on Institute participation. This quasi-experimental study did not show a statistically significant …
Date:
December 2002
Creator:
Dickson, Teresa K.
System:
The UNT Digital Library
A Comparison of Auditory and Visual Stimuli in a Delayed Matching to Sample Procedure with Adult Humans.
Five humans were exposed to a matching to sample task in which the delay (range = 0 to 32 seconds) between sample stimulus offset and comparison onset was manipulated across conditions. Auditory stimuli (1” tone) and arbitrary symbols served as sample stimuli for three (S1, S2, S3) and two (S4 and S5) subjects, respectively. Uppercase English letters (S, M, and N) served as comparison stimuli for all subjects. Results show small but systematic effects of the retention interval on accuracy and latency to selection of comparison stimuli. The results fail to show a difference between subjects exposed to auditory and visual sample stimuli. Some reasons for the failure to note a difference are discussed.
Date:
December 2002
Creator:
DeFulio, Anthony L.
System:
The UNT Digital Library
DADS - A Distributed Agent Delivery System
Mobile agents require an appropriate platform that can facilitate their migration and execution. In particular, the design and implementation of such a system must balance several factors that will ensure that its constituent agents are executed without problems. Besides the basic requirements of migration and execution, an agent system must also provide mechanisms to ensure the security and survivability of an agent when it migrates between hosts. In addition, the system should be simple enough to facilitate its widespread use across large scale networks (i.e Internet). To address these issues, this thesis discusses the design and implementation of the Distributed Agent Delivery System (DADS). The DADS provides a de-coupled design that separates agent acceptance from agent execution. Using functional modules, the DADS provides services ranging from language execution and security to fault-tolerance and compression. Modules allow the administrator(s) of hosts to declare, at run-time, the services that they want to provide. Since each administrative domain is different, the DADS provides a platform that can be adapted to exchange heterogeneous blends of agents across large scale networks.
Date:
December 2002
Creator:
Cozzolino, Clifford Joseph
System:
The UNT Digital Library
NMR Study of n-Propyllithium Aggregates
A variable temperature 1H, 13C, and 6Li NMR study of n-propyl-6Li-lithium showed five different aggregates, similar to that in the literature as (RLi)n, n= 6, 8, 9, 9, 9. There were also a number of additional new species, identified as lithium hydride containing aggregates. Unexpectedly, a series of 13C{1H} 1-D NMR experiments with selective 6Li decoupling showed evidence for 13C-6Li spin-spin coupling between the previously reported (RLi)n aggregates and various hydride species.
Date:
December 2002
Creator:
Davis, James W.
System:
The UNT Digital Library
Music student teaching in Texas: A Delphi study of issues in the new millennium.
The preparation of prospective music educators is a very complex undertaking that culminates with the student teaching practicum. However, the music student teaching experience may have less predictable expectations and results than the curriculum that precedes the event. The two-fold purpose of this study was (a) to investigate the music student teaching practicum in the State of Texas in an effort to establish current levels of success as perceived by the music educators involved in the process and (b) to identify any potentially problematic areas which might be in need of attention or revision. Thirty-six music educators (12 university supervisors, 12 cooperating teachers and 12 student teachers) who were recently involved in the music student teaching practicum in Texas were chosen as the sample in this two-round Delphi study. The first round Delphi survey, based on related literature, achieved consensus on 79% of the 108 item responses, and 15 of the 22 unresolved items reached consensus in round two of the Delphi process. The 34 sample members who completed the study ranked a final item in the second Delphi round concerning suggestions for the improvement of student teaching. The respondents showed a very high opinion of the music student teaching …
Date:
December 2002
Creator:
Cannon, Rodney M.
System:
The UNT Digital Library
Social and Economic Characteristics Related to the Immediate College Transition of Recent High School Graduates: A Study of Southwest Region TRIO Participants' College Continuation
The purpose of this study was to determine whether: 1) Southwest Region TRIO high school students between the years 1991 - 2001 continued to college immediately after high school at rates significantly different than similar population students on national and state levels; and 2) immediate college continuation for this group was a function of social and economic characteristics including race, gender, parental education, and home-care environment. The sample included 414 TRIO program participants from Texas, Oklahoma, New Mexico, Louisiana, and Arkansas. Data on the 414 participants were gathered using an existing database containing demographic and post-secondary enrollment information on study participants. The findings of this study reveal Southwest Region TRIO students during this ten-year period continued to college immediately after high school at rates not significantly different than the national low-income population of students. Results indicate that when compared to all students in the five-state southwest region, the majority low-income, first-generation TRIO population continued to college at rates not significantly different than all-income students in the region. Findings of this study also revealed select social and economic characteristics were not predictors of immediate college continuation for this group. Finally, the study showed out-of-home care environment students continued to college at …
Date:
December 2002
Creator:
Cowan, Charisse L.
System:
The UNT Digital Library
Gender, Identity, and Influence: Hong Kong Martial Arts Films
This project is an examination of the Hong Kong film industry, focusing on the years leading up to the handover of Hong Kong to communist China. The influence of classical Chinese culture on gender representation in martial arts films is examined in order to formulate an understanding of how these films use gender issues to negotiate a sense of cultural identity in the face of unprecedented political change. In particular, the films of Hong Kong action stars Michelle Yeoh and Brigitte Lin are studied within a feminist and cultural studies framework for indications of identity formation through the highlighting of gender issues.
Date:
December 2002
Creator:
Castillo, Gilbert Gerard
System:
The UNT Digital Library
The influence of klezmer on twentieth-century solo and chamber concert music for clarinet: with three recitals of selected works of Manevich, Debussy, Horovitz, Milhaud, Martino, Mozart and others.
The secular music of the Eastern European Jews is known today as klezmer. Klezmer was the traditional instrumental celebratory music of Yiddish-speaking Ashkenazi Jews who eventually populated the Pale of Settlement, which encompassed modern-day Poland, Lithuania, Ukraine, Belarus and Romania. Due to the rise of oppression and expulsion, many klezmer musicians or klezmorim immigrated to the United States between 1880 and the early 1920s. These musicians found work in klezmer bands and orchestras as well as Yiddish radio and theater. Some of the most influential klezmorim were clarinetists Naftule Brandwein and Dave Tarras who helped develop an American klezmer style. While the American style flourished, the popularity of pure klezmer began to diminish. As American-born Jews began to prefer the new sounds of big band and jazz, klezmer was considered old-fashioned and was in danger of becoming a lost art form. During the early 1970s, a reawakening study of klezmer developed. Henry Sapoznik, Lev Liberman and Andy Statman were instrumental in creating a klezmer revival in the United States. At the same time, Argentinean-born Israeli clarinetist Giora Feidman was popularizing klezmer in Europe. Klezmer had again become popular and the revival's impact on the concert hall was inevitable. Even though …
Date:
December 2002
Creator:
Card, Patricia Pierce
System:
The UNT Digital Library
Speaking up-speaking out: What does it take to prepare early childhood professionals to advocate for children and families?
The early childhood profession regards advocacy as a professional and ethical responsibility yet little is known about advocacy instructional practices in teacher education programs. This study surveyed selected early childhood teacher educators who currently prepare undergraduate preservice professionals in two- and four-year institutions throughout the United States to identify and evaluate the existing advocacy training practices in preservice education. The study was designed to: (a) determine what leaders in the field of early childhood believe constitutes appropriate advocacy training for preprofessionals, (b) describe the advocacy activities of teacher educators, (c) determine if there is a difference in the advocacy instructional practices of two- and four-year institutions, and (d) recommend a model for advocacy in preprofessional programs. The participants included 607 teacher educators who responded to a mailed questionnaire and 14 leaders of early childhood professional organizations who participated in telephone interviews. Participants represented 48 states and all geographic regions of the United States. Results indicate that teacher educators and leaders believe advocacy instruction is important in preparation programs. The most frequently included advocacy activities are professionalism and understanding the professional role. Advocacy skills and strategies focused on public policy were included the least. Findings show that teacher educators participate in …
Date:
December 2002
Creator:
Brunson, Mary Nelle
System:
The UNT Digital Library
Ecotoxicological Investigations in Effluent-Dominated Stream Mesocosms
The University of North Texas Stream Research Facility (UNTSRF) was designed to examine contaminant impacts on effluent-dominated stream ecosystems. Stream mesocosms, fed municipal effluent from the City of Denton, TX, Pecan Creek Water Reclamation Plant (PCWRP), were treated with 0, 15 or 140 µg/L cadmium for a 10-day study in August 2000. Laboratory toxicity test and stream macroinvertebrate responses indicated that cadmium bioavailability was reduced by constituents of effluent-dominated streams. The Biotic Ligand Model (BLM) for Cd was used to predict a 48 hour Cd EC50 for Ceriodaphnia dubia of 280 µg/L in these effluent-dominated streams. This value is higher that an EC50 of 38.3 µg/L Cd and a 7-day reproduction effect level of 3.3 µg/L Cd generated for C. dubia in reconstituted laboratory hard water. These results support use of a cadmium BLM for establishing site-specific acute water quality criteria in effluent-dominated streams. Although not affected by 15 µg/L treatments, organisms accumulated Cd in 15 µg/L treated streams. Hence, over longer exposure periods, Cd accumulation may increase and a no effect level may be lower than the observed 10-day no effect level of 15 µg/L. A toxicity identification evaluation procedure was utilized with in vitro and in vivo bioassays …
Date:
December 2002
Creator:
Brooks, Bryan W.
System:
The UNT Digital Library
Vicarious Learning: The Relationship Between Perceived Leader Behavior and Work Group Member Behavior
The relationship between perceived leader behavior and work group behavior was examined. Archival survey data was used in the analyses. The company that developed the survey randomly selected 595 employees to complete the survey. Results suggest there is a strong and significant relationship between leader and subordinate behavior. Group members who report that their leader demonstrates a particular behavior also report that their work group demonstrates the same or similar behavior, suggesting that subordinates may be modeling the behavior of their leader. Leadership behaviors related to trust, availability, respect, conflict, and support seem to be the best predictors of work group behavior. Furthermore, whether or not group members have received team training appears to have an effect on their perceptions of their leader and work group. The challenge for leaders is to understand modeling principles so that they can facilitate the modeling of functional rather than dysfunctional behaviors.
Date:
December 2002
Creator:
Brown, Diem
System:
The UNT Digital Library
Landscape forest modeling of the Luquillo Experimental Forest, Puerto Rico.
This thesis contributes to modeling the dynamics of forest community response to environmental gradients and disturbances over a mountain landscape. A gap model (FACET) was parameterized for species of various forest types (Tabonuco, Colorado, Dwarf and Palm), for many terrain conditions and was modified and extended to include species response to excess soil moisture and hurricanes. Landscape cover types were defined by dominance of species of each forest type and canopy height. Parameters of the landscape model (MOSAIC) were calculated from multiple runs of FACET. These runs were determined by combining terrain variables (elevation and soil) and hurricane risk. MOSAIC runs were analyzed for distribution patterns. Geographic Information Systems software was used to process terrain variables, hurricane risk and MOSAIC model output.
Date:
December 2002
Creator:
Abbott-Wood, Chris
System:
The UNT Digital Library
Reflections of Revolution: Le Figaro, Le Monde, and Public Opinion in France during the Algerian Conflict (1954-1962)
This thesis is an examination of the printed media in France (1955-1963), as represented by two mainstream newspapers: Le Monde (left-centrist) and Le Figaro (right-centrist). Using these newspapers, as well as Gallup polls recorded at the time, this study explores correlations of what was reported in newspapers and how French public opinion evolved during the course of the war. These two major sources of information are shown to have given contradictory information, thus accounting for some of the paradoxes found in public opinion polls. Specifically, the paradoxes analyzed in the study concern the Front de Libération Nationale (FLN) and the Pieds-Noirs (the European population of North Africa).
Date:
December 2002
Creator:
Atkins, Michael
System:
The UNT Digital Library
The Influence Of Jazz On Timbre In Selected Compositions For Solo Trombone
A significant body of solo literature for the trombone has been written in the last fifty years that draws as much from the jazz tradition as from that of European classical music. While much attention has been paid to these works' use of characteristic jazz rhythms, harmonies and melodic inflections, there has been little focus on timbre, the musical element that perhaps most readily distinguishes jazz from other styles of Western music. This paper focuses on the important role jazz timbres should play in a performer's interpretation of those works that are significantly influenced by jazz. It includes explorations of the significant differences in concepts of timbre between European classical music and jazz, some of the ways in which these timbral differences are produced, and methods by which performers can develop the skills necessary to produce these varied timbres. Particular attention is paid to the importance of timbre to idiomatically appropriate performances of two significant works from the solo trombone repertoire, Robert Suderburg's Night Set (Chamber Music III) and Richard Peaslee's Arrows of Time.
Date:
December 2002
Creator:
Aldag, Daniel J.
System:
The UNT Digital Library
Application of Thermomechanical Characterization Techniques to Bismuth Telluride Based Thermoelectric Materials
Access:
Use of this item is restricted to the UNT Community
The thermoelectric properties of bismuth telluride based thermoelectric (TE) materials are well-characterized, but comparatively little has been published on the thermomechanical properties. In this paper, dynamic mechanical analysis (DMA) and differential scanning calorimetry data for bismuth telluride based TE materials is presented. The TE materials' tan delta values, indicative of viscoelastic energy dissipation modes, approached that of glassy or crystalline polymers, were greater than ten times the tan delta of structural metals, and reflected the anisotropic nature of TE materials. DMA thermal scans showed changes in mechanical properties versus temperature with clear hysteresis effects. These results showed that the application of DMA techniques are useful for evaluation of thermophysical and thermomechanical properties of these TE materials.
Date:
August 2002
Creator:
White, John B.
System:
The UNT Digital Library
The Solo Compositions for Trumpet of Fisher Aubrey Tull: An Analysis of Structural, Technical, and Stylistic Elements for Performance Preparation, with Three Recitals of Selected Works by Bozza, Fasch, Haydn, Tomasi, and Others
Access:
Use of this item is restricted to the UNT Community
The compositions of Fisher Aubrey Tull are widely performed and many have become standard repertoire. Tull's compositions encompass a multiplicity of performance media including works for orchestra, chorus, symphonic band, jazz band, brass choir, and solo and chamber works. Tull's compositional output for the trumpet is prolific and is acknowledged to be music of high quality. An examination of Trumpet and Brass Programs, compiled and published annually by the International Trumpet Guild, shows Tull's solo and ensemble works for trumpet to be frequently performed. Furthermore, his compositions for trumpet have been performed and recorded by internationally acclaimed artists including Vincent DiMartino, Terry Everson, Håkan Hardenberger, Anthony Plog, Carl "Doc" Severinsen and Allen Vizzutti.This study investigates Fisher Tull's eight solo works for trumpet, which include: Vignette for Trumpet and Piano (1954); Concerto No. 1 for Trumpet and Orchestra (1964); Concerto No. 2 for Trumpet and Band (1974); Three Bagatelles for Trumpet and Piano (1975); Eight Profiles for Solo Trumpet (1978); Rhapsody for Trumpet and Band (1980); Sonata for Trumpet and Piano (1986); and Chromutations for Solo Trumpet (1988). Histories of each composition are chronicled. An analysis of formal organization and significant style features examines musical structure, harmonic language, rhythmic character, instrumentation, …
Date:
August 2002
Creator:
Wenger, Alan J.
System:
The UNT Digital Library
Tiger; a stage play, and a reflective essay detailing the writing process
Access:
Use of this item is restricted to the UNT Community
This thesis includes a full length play and a separate section describing the creation of this play. The play depicts family members struggling with the direct and indirect ramifications of alcoholism, depression, and suicide. The play is composed of two acts; act one contains eight scenes, and act two contains six scenes. It is set in the 1950s and 1960s and takes place in various areas of the family home, at a wedding reception, and at a funeral. The essay section includes a description of the process, a record of changes in the play's direction, notations of personal discoveries, and a self evaluation of the strengths and weaknesses of the play.
Date:
August 2002
Creator:
Westkaemper, Lisa
System:
The UNT Digital Library