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Adhesion/diffusion barrier layers for copper integration: carbon-silicon polymer films and tantalum substrates
The Semiconductor Industry Association (SIA) has identified the integration of copper (Cu) with low-dielectric-constant (low-k) materials as a critical goal for future interconnect architectures. A fundamental understanding of the chemical interaction of Cu with various substrates, including diffusion barriers and adhesion promoters, is essential to achieve this goal. The objective of this research is to develop novel organic polymers as Cu/low-k interfacial layers and to investigate popular barrier candidates, such as clean and modified tantalum (Ta) substrates. Carbon-silicon (C-Si) polymeric films have been formed by electron beam bombardment or ultraviolet (UV) radiation of molecularly adsorbed vinyl silane precursors on metal substrates under ultra-high vacuum (UHV) conditions. Temperature programmed desorption (TPD) studies show that polymerization is via the vinyl groups, while Auger electron spectroscopy (AES) results show that the polymerized films have compositions similar to the precursors. Films derived from vinyltrimethyl silane (VTMS) are adherent and stable on Ta substrates until 1100 K. Diffusion of deposited Cu overlayers is not observed below 800 K, with dewetting occurred only above 400 K. Hexafluorobenzene moieties can also be incorporated into the growing film with good thermal stability. Studies on the Ta substrates demonstrate that even sub-monolayer coverages of oxygen or carbide on polycrystalline Ta significantly degrade the strength of Cu/Ta chemical interactions, and affect the kinetics of Cu diffusion into bulk Ta. On clean Ta, monolayer coverages of Cu will de-wet only above 600 K. A partial monolayer of adsorbed oxygen (3L O2 at 300 K) results in a lowering of the de-wetting temperature to 500 K, while saturation oxygen coverage (10 L O2, 300 K) results in de-wetting at 300 K. Carbide formation also lowers the de-wetting temperature to 300 K. Diffusion of Cu into the Ta substrate at 1100 K occurs only after a 5-minute induction period. This induction period increases to 10 min for partially oxidized Ta, 15 min for carbidic Ta and 20 min for fully oxidized Ta. digital.library.unt.edu/ark:/67531/metadc2255/
The Afro-British Slave Narrative: The Rhetoric of Freedom in the Kairos of Abolition
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The dissertation argues that the development of the British abolition movement was based on the abolitionists' perception that their actions were kairotic; they attempted to shape their own kairos by taking temporal events and reinterpreting them to construct a kairotic process that led to a perceived fulfillment: abolition. Thus, the dissertation examines the rhetorical strategies used by white abolitionists to construct an abolitionist kairos that was designed to produce salvation for white Britons more than it was to help free blacks. The dissertation especially examines the three major texts produced by black persons living in England during the late eighteenth centuryIgnatius Sancho's Letters of the Late Ignatius Sancho (1782), Ottobauh Cugoano's Thoughts and Sentiments on the Evil of Slavery (1787), and Olaudah Equiano's The Interesting Narrative of the Life of Olaudah Equiano, or Gustavus Vassa, the African (1789)to illustrate how black rhetoric was appropriated by whites to fulfill their own kairotic desires. By examining the rhetorical strategies employed in both white and black rhetorics, the dissertation illustrates how the abolitionists thought the movement was shaped by, and how they were shaping the movement through, kairotic time. While the dissertation contends that the abolition movement was rhetorically designed to provide redemption, and thus salvation, it illustrates that the abolitionist's intent was not merely to save the slave, but to redeem blacks first in the eyes of white Christians by opening blacks to an understanding and acceptance of God. Perhaps more importantly, abolitionists would use black salvation to buy back their own souls and the soul of their nation in the eyes of God in order to regain their own salvation lost in the slave trade. But ironically, they had to appear to be saving others to save themselves. So white abolitionists used the black narratives to persuade their overwhelmingly white audience that slavery was as bad for them as it was for the African slave. And in the process, a corpus of black writing was produced that gives current readers two glimpses of one world. digital.library.unt.edu/ark:/67531/metadc2278/
An Analysis of the Ability of an Instrument to Measure Quality of Library Service and Library Success
This study consisted of an examination of how service quality should be measured within libraries and how library service quality relates to library success. A modified version of the SERVQUAL instrument was evaluated to determine how effectively it measures library service quality. Instruments designed to measure information center success and information system success were evaluated to determine how effectively they measure library success and how they relate to SERVQUAL. A model of library success was developed to examine how library service quality relates to other variables associated with library success. Responses from 385 end users at two U.S. Army Corps of Engineers libraries were obtained through a mail survey. Results indicate that library service quality is best measured with a performance-based version of SERVQUAL, and that measuring importance may be as critical as measuring expectations for management purposes. Results also indicate that library service quality is an important factor in library success and that library success is best measured with a combination of SERVQUAL and library success instruments. The findings have implications for the development of new instruments to more effectively measure library service quality and library success as well as for the development of new models of library service quality and library success. digital.library.unt.edu/ark:/67531/metadc2245/
...and one of time...: A Composition for Full Orchestra with Narration.
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‘...and one of time.' is a reinterpretation of a small musical moment from Philip Glass' opera, Einstein on the Beach, centered around the phrase "Berne, Switzerland 1905." This reinterpretation is realized through the use of several different compositional techniques including spectral composition, micropolyphony and dodecaphony, as well as the application of extra-musical models developed by Alan Lightman, John Gardner, Italo Calvino and Albert Einstein. digital.library.unt.edu/ark:/67531/metadc2267/
Asleep in the Arms of God
A work of creative fiction in the form of a short novel, Asleep in the Arms of God is a limited-omniscient and omniscient narrative describing the experiences of a man named Wafer Roberts, born in Jack County, Texas, in 1900. The novel spans the years from 1900 to 1925, and moves from the Keechi Valley of North Texas, to Fort Worth and then France during World War One, and back again to the Keechi Valley. The dissertation opens with a preface, which examines the form of the novel, and regional and other aspects of this particular work, especially as they relate to the postmodern concern with fragmentation and conditional identity. Wafer confronts in the novel aspects of his own questionable history, which echo the larger concern with exploitative practices including racism, patriarchy, overplanting and overgrazing, and pollution, which contribute to and climax in the postmodern fragmentation. The novel attempts to make a critique of the exploitative rage of Western civilization. digital.library.unt.edu/ark:/67531/metadc2253/
Benchmarks in American Higher Education: Selected Approaches for Distance Education Copyright and Intellectual Property Policies
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An evaluation of American higher education distance education programs was conducted to explore how they approach intellectual property, copyright and information sharing/antitrust policy concerns for Internet-based programs. An evaluation of the current status of distance education and Internet-based training in higher education was conducted through a pilot study that included a random sample of 223 accredited institutions. Seventy-seven institutions responded to a survey, of which there were 14 Research I&II, 17 Doctorate I&II, and 46 Master's I&II institutions included in this study. A review of institutional policy approaches for these 77 institutions was conducted via Internet Web site and bulletin review. A multiple-case study was also conducted which included 10 of the top 30 accredited distance education institutions in America. Policy approaches were examined for all institutions and differences were discussed for public and private institutions as well as the following Carnegie Class institutions- Research I&II, Doctorate I&II and Master's I&II. Ten percent of all institutions that responded to the pilot study developed a written policy addressing antitrust/information-sharing concerns. Additionally, the data indicated that 22% of institutions in these Carnegie Class ranges published copyright and intellectual property policy on their institutions' Internet Web site. Ninety percent of the institutions in the case study advised of central control for the distance education program, as well as central control for copyright and intellectual property policy. digital.library.unt.edu/ark:/67531/metadc2266/
Cassette Systems for Creating Intergeneric Hybrid ATCases
Cassette systems for creating intergeneric hybrid ATCases were constructed. An MluI restriction enzyme site was introduced at the carbamoylphosphate binding site within the pyrB genes of both Pseudomonas putida and Escherichia coli. Two hybrids, E. coli pyrB polar domain fused with P. putida pyrB equatorial domain and P. putida pyrB polar domain fused with E. coli pyrB equatorial domain, are possible. The intergeneric E. coli-P. putida hybrid pyrB gene was constructed and found to encode an active ATCase which complemented an E. coli Pyr- strain. These hybrids are useful for kinetic and expression studies of ATCase in E. coli. digital.library.unt.edu/ark:/67531/metadc2237/
Chemotactic Response of Lumbricus terrestris Coelomocytes to Larval and Adult Stages of Rhabditis pellio
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Experiments were performed to assess the suitability of Rhabditis pellio, a nematode found in earthworms, as a challenge organism for use in development of a biomarker assay to determine the potential of chemicals to suppress the immunocompetence of the non-specific immune system. To accomplish this goal, information on the life cycle of R. pellio was determined; including effects of incubation time and temperature on growth rates; along with information on the immune response elicited in the earthworm, Lumbricus terrestris. Immune parameters measured were coelomocyte migration toward and attachment to R. pellio larvae and adults. Preliminary background information showed that R. pellio has potential as a challenge organism for development of a biomarker assay. digital.library.unt.edu/ark:/67531/metadc5507/
Classification of toolmark surfaces on zipper teeth
This study proposes the classification of the toolmark under the heads of zipper teeth as a subclass characteristic as outlined by the Association of Firearm and Toolmark Examiners (AFTE). Two separate cases in which zipper teeth were found at crime scenes prompted this study. Brass zipper teeth manufactured by YKK were taken from 20 pairs of jeans and studied using a Reichert comparison microscope at 4X power. Photographs were taken and over 750 comparisons made. It was found that the toolmarks on each side on the 20 zippers were unique and independent of all other sides. The observations made in this study indicate that classifying zipper teeth toolmarks as a subclass characteristic is valid. digital.library.unt.edu/ark:/67531/metadc2248/
Counselor Effectiveness and Correlations With Select Demographic Variables for Masters Level Counseling Students
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Counselor education programs are charged with the responsibility to train students to be effective counselors. Despite relative consistency in academic and clinical experiences, some students are less effective than others. It was the intent of this research to investigate possible relationships which may exist between students' background and experiences and their levels of demonstrated counselor effectiveness as measured by the Counselor Rating Form - Short Version (CRF-S) and the Supervisor Rated-Counselor Interaction Analysis (SR-CIA). It was hypothesized that counselor effectiveness would be negatively correlated with prior teaching experience and level of religious participation. Data was collected using a demographic survey from masters level counseling students participating in their practicum semester. Counseling tapes from each of the participants were collected towards the end of the semester. These tapes were then rated by doctoral students using the CRF-S and the SR-CIA. The total sample size was 28. Regression analysis was used to investigate the hypotheses. Three models were constructed. The dependent variables used were scores from the CRF-S, the SR-CIA and a third comprised of a normalized composite of CRF-S and SR-CIA termed COMPOSITE. Each model used, as the independent variables, years of teaching experience, and hours of religious participation. Results from regression analysis suggested that a negative correlation existed between counseling effectiveness and years of teaching experience and a positive correlation between counselor effectiveness and hours of religious participation. Statistically significant results were not achieved for any of the models tested. Further investigation was conducted using effect size analysis. Small to medium effect sizes were achieved, however, suggesting that the models were detecting a negative correlation between counselor effectiveness and years of teaching experience, and a positive correlation between hours of religious participation and counselor effectiveness. digital.library.unt.edu/ark:/67531/metadc2280/
Cure kinetics and processing parameters of neat and reinforced high performance epoxy resins : evaluation of techniques
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Kinetic equation parameters for the curing reaction of a commercial glass fiber reinforced high performance epoxy prepreg composed of the tetrafunctional epoxy tetraglycidyl 4,4-diaminodiphenyl methane (TGDDM), the tetrafunctional amine curing agent 4,4’-diaminodiphenylsulfone (DDS) and an ionic initiator/accelerator, are determined by various thermal analysis techniques and the results compared. The reaction is monitored by heat generated determined by differential scanning calorimetry (DSC). The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC and temperature-modulated DSC (TMDSC), thermomechanical (TMA) and dynamic mechanical (DMA) analysis and thermally stimulated depolarization (TSD). Changes in viscosity, also indicative of degree of conversion, are monitored by DMA. Thermal stability as a function of degree of cure is monitored by thermogravimetric analysis (TGA). The parameters of the general kinetic equations, including activation energy and rate constant, are explained and used to compare results of various techniques. The utilities of the kinetic descriptions are demonstrated in the construction of a useful time-temperature-transformation (TTT) diagram for rapid determination of processing parameters in the processing of prepregs. Copyright is held by the author, unless otherwise noted. All rights reserved. Files: Thesis.pdf Special Conditions digital.library.unt.edu/ark:/67531/metadc2281/
As Darkness Falls: A Composition for Wind Ensemble
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As Darkness Falls is a composition that explores our interaction with several aspects of darkness through the use of musical imagery. The imagery attempts to reflect the moods, feelings, and impressions of a person as he or she interacts with darkness. The non-programmatic character of the composition allows listeners to superimpose their own experiences onto the musical tapestry in order to manifest a personal connection between the listener and the music. As Darkness Falls is a composition scored for a minimum instrumentation of piccolo, 6 flutes, 3 oboes, 3 bassoons, 9 B-flat clarinets, B-flat bass clarinet, 2 E-flat alto saxophones, B-flat tenor saxophone, E-flat baritone saxophone, 4 B-flat trumpets, 4 horns in F, 3 tenor trombones, bass trombone, 2 euphoniums, 2 tubas, timpani, and 4 percussionists. The music consists of three movements (slow-slow-fast) lasting a total of approximately seventeen minutes. The duration of each of the three movements is six minutes, four and one-half minutes, and six and one-half minutes, respectively. The document also contains an analysis of the work by the composer. The analysis explores the compositional style of the work, focusing on musical aspects within each movement that were governing parameters in the compositional process. digital.library.unt.edu/ark:/67531/metadc2269/
A descriptive study of students who were accepted for admission at West Texas A&M University but did not enroll
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Each year, institutions of higher education devote valuable financial and personnel resources in the hope of enhancing student recruitment and matriculation. The purpose of this study was to examine the demographic characteristics, the factors that influenced students’ decisions to apply for admission to a university, their educational intentions, and their reasons for not enrolling after they had been admitted. The subjects of the study were first-time freshmen accepted for admission to a mid-size, public, southwestern university who did not enroll for the fall 1997 semester. Statistically significant differences were found when comparing no-shows and enrolled students by gender, ethnicity, age, ACT/SAT score, and distance of their hometown from the university. There were more female no-shows, and more males enrolled than females; a greater percentage of no-shows reported the distance of their hometown to be more than 200 miles; and the mean test score for no-shows was higher. Factors important in the college selection process found to be statistically significant among the groups were: a greater percentage of Minorities than Caucasians reported the importance of the financial aid award or a scholarship offer; students living within 100 miles of the campus reported the proximity of the university as important, advice received from current or former students and high school counselors was more important to those living more than 100 miles from the campus. Cost of attendance and scholarships were important to students with the higher test scores. Statistically significant reasons cited by the no-shows for not enrolling were more Minorities than Caucasians reported financial difficulties and job demands; students living farther from the campus reported attending other universities while those living within 100 miles reported attending a community college. Recommendations the university studied could pursue include: developing a program to follow-up on the no-shows, directing more energy at recruiting students living within 200 miles of the university, and increasing the availability of scholarships. digital.library.unt.edu/ark:/67531/metadc2282/
Development of a coaxiality indicator
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The geometric dimensioning and tolerancing concept of coaxiality is often required by design engineers for balance of rotating parts and precision mating parts. In current practice, it is difficult for manufacturers to measure coaxiality quickly and inexpensively. This study examines feasibility of a manually-operated, mechanical device combined with formulae to indicate coaxiality of a test specimen. The author designs, fabricates, and tests the system for measuring coaxiality of holes machined in a steel test piece. Gage Repeatability and Reproducibility (gage R&R) and univariate analysis of variance is performed in accordance with Measurement System Analysis published by AIAG. Results indicate significant design flaws exist in the current configuration of the device; observed values vary greatly with operator technique. Suggestions for device improvements conclude the research. digital.library.unt.edu/ark:/67531/metadc2283/
Ecological Enhancement of Timber Growth: Applying Compost to Loblolly Pine Plantations
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This study explored the application of compost onto a small loblolly pine tree forest in northeast Texas. Its purpose was to determine if the application of various amounts of compost would provide for accelerated rates of growth for the trees. Soil parameters were also monitored. A total of 270 trees were planted and studied in a northeast Texas forest ecosystem. Compost rates of 5, 25, and 50 tons per acre with either soil or compost backfill were utilized and compared to a control without compost. Nonparametric and parametric ANOVA and Chi-Square tests were utilized. The results indicated that greater application rates retained greater moisture and higher pH levels in the soil. Compost applications also yielded a greater survival rate as well as larger tree height and diameter when compared to the control. The 25 ton/acre application backfilled in native soil achieved the greatest average in height and diameter when compared to the averages for the control plot. Greater growth differences for the 25S application can be attributed to additional nutrients coupled with a stable pH consistent with native soil acidity. digital.library.unt.edu/ark:/67531/metadc2265/
The effects of a tactile prompting device on the requesting behavior of a child with autism
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In the present experiment, a remote control tactile prompting device (RCT) was utilized to prompt a child with autism to recruit teacher models and play suggestions. A multiple baseline and reversal was used to assess the effects of the RCT across three play contexts. The results showed increases in the number of requests for models and suggestions as well as increases in the duration of interactive play between the child and therapist, the number of contextual statements emitted by the child, and the topography and contexts of the play behaviors emitted by the child. Findings are discussed in terms of the effectiveness and generality of the RCT and the issue of teaching a child to recruit versus teaching a child activity-specific behaviors. digital.library.unt.edu/ark:/67531/metadc2433/
The Effects of Age, Sex, and Class Stratification and the Use of Health Care Services among Older Adults in the United Kingdom
As the population ages, providing health services for the growing number of older people will become an increasingly difficult problem. In countries where the health services are provided by the government, these problems are involved with complicated issues of finance and ethics. This is the case of the National Health Service, the government institution providing health care for the citizens of the United Kingdom. Knowing what social factors influence health care usage can be a link to match usage and funding. Literature has shown that health care utilization can be predicted by social factors, as well as the medical model, and from this orientation social variables were drawn from the 1994 General Household Survey. Social factors were analyzed to determine relationships that exist between certain types of health care use and these factors. Age, sex, and class, the three main factors shown in literature to affect usage, were then analyzed to determine if services are allocated on the basis of these factors or the basis of need from illness and disability. Results of the study show that of the predisposing variables, age, sex, and class, are associated with most types of health care use. From the enabling variables, both source of income and visits from friends and relatives are associated with most types of health care. Of the illness determinants, disability, limiting illness, restricted activity days and eyesight difficulty were all related to health care use. When intervening control variables were introduced, the intervening control variables of difficulty with activities of daily living and difficulty with instrumental activities of daily living had an explanatory effect on the use of home help, district nursing, consultations with a general practitioner at home, consultations with a general practitioner at a surgery or health clinic, and inpatient stays. These services were offered more according to need than the factors of age, sex, and class. digital.library.unt.edu/ark:/67531/metadc2256/
The Effects of Shaping and Instruction-based Procedures on Behavioral Variability during Acquisition and Extinction
This study examined effects of two response acquisition procedures on topography of responding using the revealed operant technique and compared results to previous experiments on this topic. Subjects emitted 100 repetitions each of 4 response patterns on a continuous schedule of reinforcement. A 30-min extinction condition followed acquisition. One group of subjects learned the first response through a series of shaping steps designed to reduce acquisition variability. Another group of subjects was instructed in the correct response topography and was told there was no penalty for attempting other sequences. The first group of subjects produced high variability during extinction despite reduced variability in acquisition. The second group of subjects responded with moderate to high variability during extinction and little variability during acquisition. Most extinction responses for the first group were variations of the last pattern reinforced. Most extinction responses for the second group were repetitions of the last pattern reinforced. digital.library.unt.edu/ark:/67531/metadc2244/
Elasticity of money as a reinforcer: Assessing multiple compositions of unit price
Behavioral economics is the integration of concepts from micro-economics into behavior analysis. Most of the research in behavioral economics has been done with non-human subjects and with drugs as reinforcers. This study represents an extension of previous research to assess money as a reinforcer with humans as subjects. The participants in this study solved math problems to earn money at various unit prices. Results indicate that demand of money adhered to the law of demand in that consumption decreased as unit prices increased. An underlying assumption is that consumption should be equivalent at different compositions of unit price. Replications of either the same or different compositions of unit price indicated that there were some discrepancies in consumption in this study. digital.library.unt.edu/ark:/67531/metadc2234/
Empowerment: The Paradigm for Success for the Nursing Homes of the 21st Century
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For a workplace to be successful, it needs to have a higher morale, thus leading to higher quality of care for residents. For a workplace to be successful in empowerment, it must have developed strong teams, and everyone must work as a team and respect one another. The research for this paper focused on many issues. The most important part of my research came from a study of the nursing assistants at Jennings Hall (JH) in Garfield, Ohio. From the data received, I concluded that the two biggest problems in many nursing homes are lack of respect and lack of team-centered attitude. digital.library.unt.edu/ark:/67531/metadc5846/
An Examination of David Maslanka's Marimba Concerti: Arcadia II for Marimba and Percussion Ensemble and Concerto for Marimba and Band, A Lecture Recital, Together With Three Recitals of Selected Works of K.Abe, M. Burritt, J. Serry, and Others
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Although David Maslanka is not a percussionist, his writing for marimba shows a solid appreciation of the idiomatic possibilities developed by recent innovations for the instrument. The marimba is included in at least eighteen of his major compositions, and in most of those it is featured prominently. Both Arcadia II: Concerto for Marimba and Percussion Ensemble and Concerto for Marimba and Band display the techniques and influences that have become characteristic of his compositional style. However, they express radically different approaches to composition due primarily to Maslanka's growth as a composer. Maslanka's traditional musical training, the clear influence of diverse composers, and his sensitivity to extra-musical influences such as geographic location have resulted in a very distinct musical style. His exemplary attention to detail and sound timbres give his works an individualized stamp. The evolution of motivic gestures is the most distinctive characteristic of Maslanka's compositional process. Maslanka freely incorporates forms and structural principles of the baroque and classical periods, but these principles are not applied in a strict sense. These factors combine to produce two works that are both unique and significant in the literature for marimba. They exhibit a sensitivity to sound timbres while maintaining a mature approach to melody, harmony, and rhythm acknowledging the traditions of earlier eras. This study examines compositional techniques, aspects of formal structure, tonality, melodic content, and marimba technique found in David Maslanka's Arcadia II: Concerto for Marimba and Percussion Ensemble (1982), and Concerto for Marimba and Band (1990). Transcripts of personal interviews provide valuable insights into Maslanka's approach to composition and other issues pertinent to the study of his compositions for marimba. Biographical information and an overview of his works that include marimba will serve as background material. digital.library.unt.edu/ark:/67531/metadc2262/
Examining the nature of interactions which facilitate learning and impact reading achievement during a reading apprenticeship: A case study of at-risk adolescent readers
The purpose of this qualitative case study was to explore the interactions that take place during a reading apprenticeship which facilitate the learning of reading strategies by adolescent students who are at the middle school level and are still at-risk for reading failure and to investigate how a reading apprenticeship affects reading achievement in the areas of fluency, vocabulary development, comprehension, and the self-perception of the reader. The case study was descriptive and interpretive in nature, and examined two students, each of whom was part of a one-to-one reading apprenticeship. The researcher served as participant observer in both cases and was the teacher in each of the one-to-one reading apprenticeships. The primary data set was qualitative in nature, and elements of quantitative data were also considered. Sessions included pretesting and posttesting using the Classroom Assessment of Reading Processes (Swearingen & Allen, 1997), reading from narrative or expository books, working with words, writing, and dialoguing about the reading. Reading strategies were directly taught, modeled, and reinforced by the teacher/researcher with the goal of the students internalizing the strategies and improving their reading in the areas of fluency, vocabulary development, and comprehension, as well as improving their attitudes toward reading and their self-perception about their reading ability. This study described a reading apprenticeship which positively impacted reading achievement for two students in the areas of fluency, comprehension, and vocabulary development, as well as influencing their motivation for reading and their self-perceptions as readers. The environment of the reading apprenticeship, the dialogue that occurred throughout the reading apprenticeship, and strategy instruction, modeling, and reinforcement were found to be factors and interactions which facilitated learning during this intervention. digital.library.unt.edu/ark:/67531/metadc2233/
Exploration of Sculpture
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The images that I sculpt deal with reflections of human traits. Wood lends itself to this endeavor, offering minimal resistance to manipulation. Keeping the origin and qualities of the material while manipulating it into another object is a statement within itself. Letting the wood do what it does naturally keeps the viewer in touch with the fact it is still just an object of nature. Wood does not make itself any less real because of the relationship of the sculpture to it as wood. digital.library.unt.edu/ark:/67531/metadc5841/
Factors Influencing How Students Value Asynchronous Web Based Courses
This dissertation discovered the factors influencing how students value asynchronous Web-based courses through the use of qualitative methods. Data was collected through surveys, observations, interviews, email correspondence, chat room and bulletin board transcripts. Instruments were tested in pilot studies of previous semesters. Factors were identified for two class formats. The asynchronous CD/Internet class format and the synchronous online Web based class format. Also, factors were uncovered for two of the instructional tools used in the course: the WebCT forum and WebCT testing. Factors were grouped accordingly as advantages or disadvantages under major categories. For the asynchronous CD/Internet class format the advantages were Convenience, Flexibility, Learning Enhancement, and Psychology. The disadvantages included Isolation, Learning Environment, and Technology. For the synchronous online Web based class format the advantages were Convenience, Flexibility, Human Interaction, Learning Enhancement and Psychology, whereas the disadvantages included Isolation, Learning Environment and Technology. Concurrently, the study revealed the following factors as advantages of the WebCT Forum: Help Each Other, Interaction, Socialization, Classroom News, and Time Independent. The disadvantages uncovered were Complaints, Technical Problems and Isolation. Finally, advantages specified for the WebCT testing tool were Convenience, Flexibility and Innovations, and its disadvantages were Surroundings Not Conducive to Learning, and Technical Problems. Results indicate that not only classroom preference, learning style and personality type influence how students value a Web based course, but, most importantly, a student's lifestyle (number of personal commitments, how far they live, and life's priorities). The WebCT forum or bulletin board, and the WebCT testing or computerized testing were seen mostly by students, as good tools for encouraging classroom communication and testing because of the convenience and flexibility offered. Still, further research is needed both quantitatively and qualitatively to ascertain the true weight of the factors discovered in this study. digital.library.unt.edu/ark:/67531/metadc6151/
Goal Setting Strategies, Locus of Control Beliefs, and Personality Characteristics of NCAA Division IA Swimmers
The purpose of the present study was to examine goal setting strategies, locus of control beliefs and personality characteristics of swimmers (108 males and 111 females) from top twenty 1999 NCAA Division IA programs. Three questionnaires were completed: (a) Goal Setting in Sport Questionnaire (GSISQ: Weinberg, Burton, Yukelson, & Weigand, 1993), (b) the Internal, Powerful Others, Chance Scale (IPC: Levenson, 1973), and (c) the compliance subscale and six conscientiousness subscales from the NEO Personality Inventory-Revised (NEO PI-R: Costa & McCrae, 1985). Descriptive statistics from the GSISQ indicated that most of the swimmers set goals to improve overall performance (51%) and set moderately difficult goals (58%). Results associated with the IPC scale revealed that most of the swimmers attributed their sport performance to internal factors. Results pertaining to the NEO-PI-R indicated that most swimmers were highly conscientious, disciplined, purposeful, and determined. digital.library.unt.edu/ark:/67531/metadc2236/
Hearing History: Musical Borrowing in the Percussion Ensemble Works, Duo Chopinesque and Chameleon Music
Duo Chopinesque by Michael Hennagin and Chameleon Music by Dan Welcher represent two of the most significant percussion ensemble compositions written in the last twenty years. Both works are written for the mostly mallet type of percussion ensemble wherein the keyboard instruments predominate. However, the most unique aspect of these two pieces is their use of musical quotation. Duo Chopinesque borrows Chopin's Prelude in E minor in its entirety, while Chameleon Music borrows portions from four Mozart Sonatas. This paper places each work within the history of the percussion ensemble, and in the larger history of musical quotation in the twentieth century. In addition, the compositional characteristics of both works are examined with particular emphasis on each composer's use of borrowed material from the music of Mozart and Chopin. Particular attention is paid to the relationship between quoted material and newly composed rhythmic motives. digital.library.unt.edu/ark:/67531/metadc2250/
Hospitality Students' Attitudes and Behavioral Intentions toward Learning and Using Computer Technology
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Following Ajzen/Fishbein's 1980 Theory of Reasoned Action, influences of hospitality students' external variables (age, gender, university classification, and work experience) on computer attitudes, and relationships between computer attitudes and intentions to learn and use computers were tested. A sample of 412 hospitality students completed two measurements: Loyd/Gressard's 1984 Computer Attitude Scale, and Behavioral Intentions to Learn and Use Computers. Males and females had positive computer attitudes. Graduates had more positive computer attitudes. No interaction effect existed between gender and classification. No relationships existed between age and work experience on computer attitudes. Computer attitudes positively correlated with intentions to learn and use computers. Results supported the Theory of Reasoned Action. External variables partially influence attitudes and attitudes influence intentions. digital.library.unt.edu/ark:/67531/metadc2279/
The Human Object: Explorations of the Figurative Toy
This Problem in Lieu of Thesis documents the thought processes that led to the completion of a series of five interactive sculptures. Each piece incorporates a part of the human body taken from its normal context and placed into the context of children's playground equipment. digital.library.unt.edu/ark:/67531/metadc5848/
Human Rights & U.S. Foreign Aid, 1984-1995: The Cold War and Beyond...
This study attempts to cast empirical light on the traditionalist-revisionist debate regarding the impact of the Soviet Union's collapse on U.S. foreign policy decision-making. To accomplish this goal, the relationship between human rights and U.S. foreign aid decision-making is examined before and after the Cold War. In doing so, the author attempts to determine if "soft" approaches, such as the use of a country's human rights records when allocating aid, have garnered increasing attention since the end of Cold War, as traditionalists assert, or declined in importance, as revisionists content. digital.library.unt.edu/ark:/67531/metadc6152/
The implications of national culture on American knowledge work teams: A model of a collaborative corporate culture to support team functioning
In order to remain competitive, many American businesses implement team-based work strategies. In many cases, however, teams fail in American organizations, which may be in part due to a conflict between American culture and the cooperative environment necessary for teams to function effectively. By comparing the literature regarding American culture, challenges faced by teams, and then corporate culture, it becomes evident that there are aspects of American culture that pose challenges but also that an appropriate corporate culture can mediate some areas of incompatibility. A collaborative corporate culture can induce cooperation among employees without asking employees to work in a manner that is counterintuitive, thus gaining the benefits of teams. digital.library.unt.edu/ark:/67531/metadc2257/
John Buchan (1875-1940) and the First World War: A Scot's Career in Imperial Britain
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This dissertation examines the political career of Scottish-born John Buchan (1875-1940) who, through the avenue of the British Empire, formed political alliances that enabled him to enter into the power circles of the British government. Buchan's involvement in governmental service is illustrative of the political and financial advantages Scots sought in Imperial service. Sources include Buchan's published works, collections of correspondence, personal papers, and diaries in the holdings of the National Library of Scotland, Edinburgh. Letters and other documents pertaining to Buchan's life and career are also available in the Beaverbrook papers, Lloyd George papers, and Strachey papers at the House of Lords Record Office, London, and in the Liddle Hart Collection at King's College, London. Documents concerning Buchan's association with the War Cabinet, the Foreign Office, and the Department of Information are among those preserved at the Public Record Office, London. References to Buchan's association with the British Expeditionary Force in France are included in the holdings of the Intelligence Corps Museum, Ashford, Kent. The study is arranged chronologically, and discusses Buchan's Scottish heritage, his education, his assignment on Lord Alfred Milner's staff in South Africa, and his appointment as Director of the Department of Information during World War I. The study devotes particular attention to Buchan's leadership of the Department of Information, a propaganda arm of the British government during the First World War. Buchan consolidated independent branches of propaganda production and distribution, and coordinated the integration of information provided by the British Foreign Office, War Office, and the Department of Information's Intelligence Bureau to forward Britain's propaganda effort. The study also considers his literary contributions, his Parliamentary service, and, when raised to the peerage as Lord Tweedsmuir of Elsfield, his royal commission as Governor-General of Canada. This dissertation concludes that, while pursuing an imperial career, John Buchan established a relationship with a powerful clique that enabled him to become part of the machinery of state. digital.library.unt.edu/ark:/67531/metadc2274/
Korean studies in North America 1977-1996: A bibliometric study
This research is a descriptive bibliometric study of the literature of the field of Korean studies. Its goal is to quantitatively describe the literature and serve as a model for such research in other area studies fields. This study analyzed 193 source articles and 7,166 citations in the articles in four representative Korean and Asian studies journals published in North America from 1977 to 1996. The journals included in this study were Korean Studies (KS), the Journal of Korean Studies (JKS), the Journal of Asian Studies (JAS), and the Harvard Journal of Asiatic Studies (HJAS). Subject matters and author characteristics of the source articles were examined, along with various characteristics such as the form, date, language, country of origin, subject, key authors, and key titles of the literature cited in the source articles. Research in Korean studies falls within fourteen broad disciplines, but concentrated in a few disciplines. Americans have been the most active authors in Korean studies, followed closely by authors of Korean ethnicity. Monographic literature was used most. The mean age of publications cited was 20.87 and the median age of publications cited was 12. The Price Index of Korean studies as a whole is 21.9 percent. Sources written in English were most cited (47.1%) and references to Korean language sources amounted to only 34.9% of all sources. In general, authors preferred sources published in their own countries. Sources on history were cited most by other disciplines. No significant core authors were identified. No significant core literature were identified either. This study indicates that Korean studies is still evolving. Some ways of promoting research in less studied disciplines and of facilitating formal communication between Korean scholars in Korea and Koreanists in North America need to be sought in order to promote well-balanced development in the field. This study suggests that as many and as great a variety of titles in all formats as possible need to be collected to support research in Korean studies. digital.library.unt.edu/ark:/67531/metadc2254/
The law and human rights: is the law a mere parchment barrier to human rights abuse?
This study is the first systematic global analysis of the impact of law on human rights, analyzing the impact of twenty-three constitution provisions and an international covenant on three measures of human rights behavior, over the period of 1976-1996. Three sets of constitutional provisions are analyzed, including 1) ten provisions for individual freedoms and due process rights, 2) nine provisions for elements of judicial independence and 3) four provisions that outline procedures for states of emergency. Additionally, the impact of the International Covenant on Civil and Political Rights on actual human rights behavior is analyzed. Each of these areas of law are evaluated individually, in multiple models in which different elements vary. For example, some models control for democracy with different measures, others divide the data into the Cold War and post-Cold War eras, and some test constitutional indices. Finally, all provisions are simultaneously analyzed in integrated models. Provisions for fair and public trials are consistently shown to decrease the probability of abuse. An index of four freedoms (speech, religion, association, and assembly) decreases the probability of abuse somewhat consistently. Three of the provisions for judicial independence are most consistent in reducing the probability of abuse: the provisions for exclusive judicial authority, for the finality of judges' decisions, and banning exceptional courts. Two of four states of emergency provisions decrease abuse as international lawyers have argued: the provisions for legislative declaration of the emergency and the ban against dissolving the legislature during an emergency. However, two of the provisions are shown to hurt human rights practices: the duration and the derogation provisions. The International Covenant on Civil and Political Rights does not demonstrate a statistically significant impact. While the performance of the constitutional provisions is less than legal scholars would hope, their combined impact over time are shown to be quite large, relative to the impacts of other factors shown to affect human rights abuse. digital.library.unt.edu/ark:/67531/metadc2247/
The Luxury of Tears: A Secondary Survivor's Story
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As the written accompaniment for The Luxury of Tears, a twelve-minute documentary video exploring the emotional impact of sexual assault on male survivors and their partners, this document examines the visual texts of both the fiction and nonfiction genres. Specifically, I contend that fiction film manufactures male survivorship with regard to rape events in such manner which contributes to the thematization of social silence. Such silence perpetuates the feminization of rape as a social problem, and dissolves the development of male survivor resources. A discussion of production processes, challenges, and resolutions is included. digital.library.unt.edu/ark:/67531/metadc2273/
"Marvelous Accidents": The Concerto for Prepared Piano and Chamber Orchestra of John Cage
John Cage’s Concerto for Prepared Piano and Chamber Orchestra (1950-51) holds a unique position within the composer’s oeuvre as the first work based in part on chance-derived compositional procedures. Cage entered into such practice gradually, incrementally abandoning subjective taste and personal expression through the course of the work. Drawing from the philosophical framework provided by Cage’s "Lecture on Nothing" (1950) and "Lecture on Something" (c. 1951-52), this thesis explores the aesthetic foundations of the concerto and examines Cage’s compositional methodology throughout its three movements. Special attention is paid to the procedure underlying the first movement, whose analysis is based largely on the composer’s manuscript materials for the work. digital.library.unt.edu/ark:/67531/metadc2260/
Measuring change in university counseling center students: Using symptom reduction and satisfaction with services to propose a model for effective outcome research
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Abstract This study proposes a model for meeting increasingly mandated outcome research objectives in a university counseling center setting. It is proposed that counseling centers utilize their existing intake forms, along with an annual satisfaction survey to determine the effectiveness of counseling services. Effectiveness is defined as improvement and measured by the reduction of the symptoms or presenting concerns with which the client initially presented. It also introduces the Relative-Change Index (R-Chi) as an objective way to quantify intra-individual change occurring as a result of therapy. This new mathematical procedure allows for a more meaningful assessment of the client's degree of improvement, relative to their potential for improvement. By re-administering the problem checklist, routinely included as part of the initial paperwork for each client at intake, again post-therapy, it is possible to quantify improvement by measuring the difference in distressing concerns. Additionally, including a subjective, retrospective survey question asking the client to indicate their perceived rate if improvement at follow-up provides construct validity and allows for correlational comparisons with R-Chi. Results suggest that student/client ratings of the degree to which the services they received satisfactorily addressed their presenting concerns were significantly rated to their R-Chi score. This model suggests that the framework guiding client outcome research should include measures of the client's level of distress, improvement in reducing the distress, and satisfaction with services. digital.library.unt.edu/ark:/67531/metadc2268/
Media effects on the body shape ideal and bulimic symptomatology in males
This study investigates the impact of sociocultural mediators in relation to eating disorders among male undergraduates. Literature on eating disorders has demonstrated that a thin body shape ideal depicted in the media directly contributes to eating pathology among females, but little research has investigated the direct effects of ideal body shape images among men. The focus of the present investigation was to assess the direct effects of exposure to the ideal male body shape on men’s affect, self esteem, body satisfaction, and endorsement of U. S. societal ideals of attractiveness. In addition, the relation of these variables to bulimic symptomatology was examined. Modeling a study conducted on women (Stice & Shaw, 1994), male undergraduates between the ages of 18 to 25 participated in premeasure (N = 169) and post measure (N = 95) conditions. Participants in the post measure were randomly exposed to pictures from magazines containing either male models depicting the ideal body shape, an average body or pictures of clothing without models. Results from repeated mulitvariate analysis indicated that exposure to the ideal body shape condition did not demonstrate significant negative changes in men’s affect, self esteem, body satisfaction or endorsement of U. S. societal ideals of attractiveness. Indirect support for the sociocultural theory of eating disorders was provided by multiple regression analyses which demonstrated that increased body mass, self esteem, stress and anxiety predicted bulimic symptomatology in men. Future research should direct itself toward investigating possible sociocultural influences of eating disorders on certain male subenvironments, such as athletes or homosexual males that place a greater emphasis on maintaining lower body mass and an ideal body shape. digital.library.unt.edu/ark:/67531/metadc2261/
A Narrative Analysis of Korematsu v. United States
This thesis studies the Supreme Court decision, Korematsu v. United States, 323 U.S. 214 (1944) and its historical context, using a narrative perspective and reviewing aspects of narrative viewpoints with reference to legal studies in order to introduce the present study as a method of assessing narratives in legal settings. The study reviews the Supreme Court decision to reveal its arguments and focuses on the context of the case through the presentation of the public story, the institutional story, and the ethnic Japanese story, which are analyzed using Walter Fisher's narrative perspective. The study concludes that the narrative paradigm is useful for assessing stories in the law because it enables the critic to examine both the emotional and logical reasoning that determine the outcomes of the cases. digital.library.unt.edu/ark:/67531/metadc2238/
A Narrative Herstory of Women's Studies at the University of North Texas
In the late 1960's the academic field of Women's Studies was created to give women a more equal education and a more accurate reflection of their history and impact on society. At the University of North Texas the effort to implement Women's Studies was not begun seriously until the late 1980's. This paper covers the effort to establish Women's Studies at UNT. My thesis is that this has been a grassroots effort led by professors and students who succeeded not only in establishing Women's Studies but also in changing the face and feeling of the University, creating a more positive environment for women. The bulk of the paper is made up of narrative selections drawn from oral history interviews with key individuals. digital.library.unt.edu/ark:/67531/metadc2252/
Nobody's Fool: A Study of the Yrodivy in Boris Godunov
Modest Musorgsky completed two versions of his opera Boris Godunov between 1869 and 1874, with significant changes in the second version. The second version adds a concluding lament by the fool character that serves as a warning to the people of Russia beyond the scope of the opera. The use of a fool is significant in Russian history and this connection is made between the opera and other arts of nineteenth-century Russia. These changes are, musically, rather small, but historically and socially, significant. The importance of the people as a functioning character in the opera has precedence in art and literature in Russia in the second half of the nineteenth-century and is related to the Populist movement. Most importantly, the change in endings between the two versions alters the entire meaning of the composition. This study suggests that this is a political statement on the part of the composer. digital.library.unt.edu/ark:/67531/metadc2242/
Performing "Camp, Vamp & Femme Fatale": Revisiting, Reinventing & Retelling the Lives of Post-Death, Retro-Gothic Women
This thesis examines the production process for "Camp, Vamp and Femme Fatale," performed at the University of North Texas in April of 1997. The first chapter applies Henry Jenkins's theory of textual poaching to the authors' and cast's reappropriation of cultural narratives about female vampires. The chapter goes on to survey the narrative, cinematic and critical work on women as vampires. As many of the texts were developed as part of the fantasy role-playing game Vampire: The Masquerade, this chapter also surveys how fantasy role-playing develops unpublished texts that can make fruitful ground for performance studies. The second chapter examines the rehearsal and production process in comparison to the work of Glenda Dickerson and other feminist directors. digital.library.unt.edu/ark:/67531/metadc2239/
A Personal Documenation System for Scholars: A Tool for Thinking
This exploratory research focused on a problem stated years ago by Vannevar Bush: "The problem is how creative men think, and what can be done to help them think." The study explored the scholarly work process and the use of computer tools to augment thinking. Based on a review of several related literatures, a framework of 7 major categories and 28 subcategories of scholarly thinking was proposed. The literature was used to predict problems scholars have in organizing their information, potential solutions, and specific computer tool features to augment scholarly thinking. Info Select, a personal information manager with most of these features (text and outline processing, sophisticated searching and organizing), was chosen as a potential tool for thinking. The study looked at how six scholars (faculty and doctoral students in social science fields at three universities) organized information using Info Select as a personal documentation system for scholarly work. These multiple case studies involved four in-depth, focused interviews, written evaluations, direct observation, and analysis of computer logs and files collected over a 3- to 6-month period. A content analysis of interviews and journals supported the proposed AfFORD-W taxonomy: Scholarly work activities consisted of Adding, Filing, Finding, Organizing, Reminding, and Displaying information to produce a Written product. Very few activities fell outside this framework, and activities were distributed evenly across all categories. Problems, needs, and likes mentioned by scholars, however, clustered mainly in the filing, finding, and organizing categories. All problems were related to human memory. Both predictions and research findings imply a need for tools that support information storage and retrieval in personal documentation systems, for references and notes, with fast and easy input of source material. A computer tool for thinking should support categorizing and organizing, reorganizing and transporting information. It should provide a simple search engine and support rapid scanning. The research implies the need for tools that provide better affordances for scholarly thinking activities. digital.library.unt.edu/ark:/67531/metadc2258/
Personality characteristics of Counselor Education graduate students as measured by the Myers-Briggs Type Indicator and the Bem Sex Role Inventory
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This study was designed to investigate the correlation of the variables of gender, Myers-Briggs Type Indicator (MBTI) personality preferences, and androgyny as measured by the Bem Sex Role Inventory (BSRI) in Counselor Education graduate students. Instruments were administered to Counselor Education graduate students at nine institutions in five national regions. A total of 172 participants (18 males and 154 females) who were enrolled in Master's level theories courses or practicum courses completed a student information sheet, informed consent, MBTI, and BSRI. Instruments were hand scored and chi-square test was used to determine significance of the hypotheses; the saturated model of log linear analysis was the statistic used for the research question. As predicted, of the sixteen MBTI types, the most common for Counselor Education graduate students emerged as ENFP: extraversion, intuition, feeling, and perception. Additionally, this MBTI type was found to be significantly more common among the population of Counselor Education graduate students than is found among the general population. The expectation that more male Counselor Education graduate students would score higher on the androgyny scale of the BSRI was unsupported; low sample size for male Counselor Education graduate students prevented use of chi-square; however, it was apparent through the use of the statistic of raw frequencies that males clustered around every other category except androgyny. The hypothesis that more female Counselor Education graduate students would score higher on the feminine scale was also unsupported, as equal distribution of the females occurred within all four categories of the BSRI. It was hypothesized that males with a sensing and thinking preference on the MBTI would tend toward the masculine dimension of the BSRI more than males with an intuitive and feeling preference. This was unsupported as well. Female Counselor Education graduate students with an intuitive and feeling preference did, however, demonstrate a greater tendency toward the feminine classification on the BSRI than did females with a sensing and thinking preference, so that this hypothesis was retained. No significant relationship was found between the variables of MBTI type, BSRI classification, and gender. digital.library.unt.edu/ark:/67531/metadc2263/
The potential of coelomocyte chemotaxis as an immune biomarker in the earthworm, Lumbricus terrestris
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Coelomocyte migration responses, both random and chemotatic, were examined in the earthworm Lumbricus terrestris. Coelomocyte random migration patterns towards non-stimulatory, non-chemotatic solutions were described. Migration responses to immunostimulatory agents lipopolysaccharides (LPS), N-formly-methionyl-leucyl-phenylalanine (FMLP), sheep erythrocytes, Saccharomyces cerevisiae, Aeromonas hydrophila, Eisenia fetida and Rhabditis pellio were characterized. Chemotaxis was reported to LPS, FMLP, sheep erythrocytes, S. cerivesae and E. fetida. Bio-indicator potential of chemotaxis is discussed relative to variability in migration responses. digital.library.unt.edu/ark:/67531/metadc2272/
Precision Atomic Spectroscopy with an Integrated Electro- Optic Modulator and DBR Diode Laser at 1083nm
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We have explored the use of recently developed high speed integrated electro optic modulators and DBR diode lasers as a tool for precision laser studies of atoms. In particular, we have developed a technique using a high speed modulator as a key element and applied it to the study of the fine structure of the 23P state of atomic helium. This state has been of long standing interest in atomic physics and its study has been the aim of several recent experiments using various precision techniques. We present our method and results, which will describe a new method for determining the fine structure constant, and lead to a precision test of atomic theory. digital.library.unt.edu/ark:/67531/metadc5847/
A Presentation of Current Research on Partitions of Lines and Space
We present the results from three papers concerning partitions of vector spaces V over the set R of reals and of the set of lines in V. digital.library.unt.edu/ark:/67531/metadc2243/
A qualitative study of the use and value of financial performance indicators in selected community colleges in the state of Texas as perceived by their chief executive officers
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Throughout the United States, colleges and universities are faced with an increasing need for financial funding, while at the same time resources continue to diminish. With the limitations of available funds, community colleges must exhibit efficiencies in the operations of their institutions. External interests, such as governing boards and legislatures, require demonstration of efficient financial management. This evidence is then used to make decisions concerning future financial support for the community college. This study determined if community college chief executive officers use financial performance indicators as provided by the State Auditor's Office and if the chief executive officers of the community colleges value the compilation and the distribution of the financial performance indicators. In the selected colleges, many of the chief executive officers depend on their chief financial officer for understanding and application of financial performance indicators. The performance indicators distributed by the Auditor's Office captured only a snapshot of the college's performance, and failed to fully describe the whole college performance or specific financial events captured by the indicators. Though the indicators had flaws, either through incorrect data or lack of explanation, the CEOs did value their compilation because they provided a means for ‘getting the community college story' to decision makers external to the college.The State Auditor's performance indicators were developed using a university model. Because of the distinct difference in mission between the community college and the university, several of the indicators were not applicable to the community colleges. The CEOs suggested that another set of indicators be developed, using community college input, that would better capture the financial performance of the colleges. The new set of indicators should be simplified and measure only those areas, such as revenues and expenditures, that are truly comparable from one institution to another. digital.library.unt.edu/ark:/67531/metadc2277/
Reactions and learning as predictors of job performance in a United States Air Force technical training program
This study is based on Kirkpatrick's (1996) four level evaluation model. The study assessed the correlation between and among three levels of data that resulted from evaluation processes used in the U.S. Air Force technical training. The three levels of evaluation included trainee reaction (Level 1), test scores (Level 2), and job performance (Level 3). Level 1 data was obtained from the results of a 20 item survey that employed a 5-point Likert scale rating. Written test scores were used for Level 2 data. The Level 3 data was collected from supervisors of new graduates using a 5-point Likert scale survey. The study was conducted on an existing database of Air Force technical training graduates. The subjects were trainees that graduated since the process of collecting and storing Levels 1 and 2 data in computerized database began. All subjects for this study graduated between March 1997 and January 1999. A total of 188 graduates from five Air Force specialties were included. Thirty-four cases were from a single course in the aircrew protection specialty area; 12 were from a single course in the munitions and weapons specialty area; and 142 were from three separate courses in the manned aerospace maintenance specialty area. Pearson product moment correlation coefficients were computed to determine the correlation coefficients between Levels 1 and 2; Level 1 and 3; Level 2 and 3 for each subject course. Multiple linear regression was used to determine the relationship between the composite of Levels 1 and 2 and Level 3. There were significant correlation coefficients between Levels 1 and 2 and Levels 2 and 3 for only one of the five courses. The linear regression analysis revealed no significant correlation using the composite of Levels 1 and 2 as a predictor of Level 3. digital.library.unt.edu/ark:/67531/metadc2259/
Reconstructions: nine movements for solo soprano, chorus, and wind ensemble
Reconstructions is a nine-movement composition for solo soprano, chorus, and wind ensemble using texts from several of Emily Dickinson's poems. The soloist represents the main character in this dramatic work, and the narrative structure portrays abstract moments in this character's life. While the narrative structure of the reconstructed fragments is important to the form of the composition, other elements are also significant. Pitch structures generated from set theoretical systems, in addition to cyclic and palindromic structures are utilized throughout. Timbre also delineates the form, as various combinations of instruments and chorus create an evolving environment in which the soloist resides. digital.library.unt.edu/ark:/67531/metadc2435/
The relationship between time-on-task in computer-aided instruction and the progress of developmental reading students at the University of Texas at Brownsville and Texas Southmost College
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This research sought to determine what relationship exists between time-on-task in computer-aided instruction (CAI) using Destinations courseware and progress in reading ability of developmental reading students as indicated by the reading portion of the Texas Academic Skills Program (TASP) test. Time-on-task is the time during which a student actively works on Destinations activities, as recorded by the software management system. TASP, an exam required of all students in Texas public colleges, assesses reading, math, and writing skills. The population was made up of 482 students who took the TASP exam before and after CAI and who used Destinations CAI for remediation of reading skills. Null hypotheses were explored using Pearson correlation and linear multiple regression. The findings for the null hypotheses were the following: Ho1 - Correlation and linear regression correlation showed that time-on-task in Destinations CAI had no significant effect on the TASP scores of the population studied. Ho2 - Correlation and linear regression correlation showed that females made significantly better gains on the TASP test from CAI than males. Ho3 - Correlation and linear regression correlation showed that low-achiever students made no better gains on the TASP test from time-on-task in CAI than high-achiever students. Difference between the two group's gains was not statistically significant. Ho4 - The regression equations predicted the gain in TASP reading scores for less than 1% of the population studied. Only the regression equations for male students and female students separately were statistically significant. The researcher recommends replication of this study each semester to determine the effectiveness of CAI. Regular and systematic evaluation using pretest and posttest data will provide benchmarks so that the value of changes in instructional methods can be measured. This method of research can help to clarify questions that should be answered through other research methods. digital.library.unt.edu/ark:/67531/metadc2275/
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