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366 Matching Results
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Do the Hemispheres Learn at Different Rates: Further Examination of Hemispheric Differences Using a Random Polygon Task
This paper examines the learning rate of the two different hemispheres of the brain and compares them through a study. Lance Hoffmeyer explains the findings derived from a test conducted through having subjects complete a random polygon task.
Date:
December 1996
Creator:
Hoffmeyer, Lance
System:
The UNT Digital Library
The Effect of Test Anxiety Reduction Intervention on United States Air Force Allied Health Care Students
This study examined the effects of test anxiety reduction strategies on U.S. Air Force allied health care students and had a fourfold purpose. The first was to estimate the extent of student test anxiety in allied health care students. The second was to determine the predictors of student test anxiety. The third was to determine if the Student Learning Center provides an effective method of reducing test anxiety in the subjects. The final purpose was to recommend areas for future research.
Date:
December 1996
Creator:
Sterling, Jimmy L. (Jimmy Lee)
System:
The UNT Digital Library
Effectiveness of the Neurobehavioral Cognitive Status Examination in Assessing Alzheimer's Disease
Accurate, early diagnosis of Alzheimer's Disease is becoming increasingly important in light of its growing prevalence among the expanding older-aged adult population. Due to its ability to assess multiple domains of cognitive functioning and provide a profile of impairment rather than a simple global score, the Neurobehavioral Cognitive Status Examination (NCSE) is suggested to better assess such patterns of cognitive deficit for the purpose of diagnosis. The performance of the NCSE was compared with that of the Mini-Mental State Examination (MMSE) for diagnostic sensitivity in a sample of patients diagnosed as having probable Alzheimer's Disease. The strength of correlation between severity of cognitive impairment on these tests and report of behavior problems on the Memory and Behavior Problems Checklist (MBPC) was also explored, as was performance on the NCSE and report of behavior problems using the MBPC in predicting Single Photon Emission Computed Tomography (SPECT) scan results. The NCSE was found to exhibit greater sensitivity to physician diagnosis of probable Alzheimer's Disease relative to two versions (Serial 7's or WORLD) of the MMSE (.90, .77 and .68, respectively). While both measures were found to correlate significantly with the report of behavior problems, only a moderate proportion (NCSE = .22 and …
Date:
December 1996
Creator:
Begnoche, Normand B.
System:
The UNT Digital Library
The Effects of Child-Centered Play Therapy Training on Trainees
This study was designed to determine the effects of child-centered play therapy as a play therapy training model for beginning play therapy students. The purpose of this study was to determine the effects of child-centered play therapy training on play therapy trainees in (a) improving positive attitudes and beliefs toward children; (b) improving knowledge of child-centered play therapy; (c) improving confidence in applying child-centered play therapy skills; (d) reducing dominance tendencies in trainees' personality as measured by the California Psychological Inventory; and (e) increasing tolerance levels in trainees' personality as measured by the CPI. The experimental group, consisting of 37 counseling graduate students with a specialty in child counseling, received 45 clock hours of introduction to play therapy graduate course training at the University of North Texas, Denton. The control group, consisting of 29 counseling graduate students with a specialty in child counseling, received other counseling graduate courses training but no play therapy training at the time of their participation in this study at the University of North Texas. Both experimental and control group students completed the pretest and the posttest on the Play Therapy Attitude Knowledge Skills Survey and the California Psychological Inventory at the beginning and the end …
Date:
December 1996
Creator:
Kao, Shu-Chen
System:
The UNT Digital Library
Effects of English and Bilingual Storybook Reading and Reenactment on the Retelling Abilities of Preschool Children
The purpose of this study was to investigate the story retelling abilities of preschool children who have experienced storybook reading and storybook reenactment bilingually, in English and Spanish, and preschool children who have experienced storybook reading and storybook reenactment in English only. This is a clinical case study employing both quantitative and qualitative measures comparing four treatment groups. Three evaluation instruments were developed by the researcher and used for posttesting; a story comprehension test, a story retelling guidesheet/scoresheet, and a storybook literacy response evaluation. In addition, participant observation and teacher interviews were used to gather qualitative data regarding learning center extensions of the target text and teacher beliefs and practices about the use of storybooks. The findings from this study show that scores for children who experienced storybook reading and storybook reenactment were significantly better on both the story retelling and story comprehension measures. In addition, a larger proportion of children who experienced storybook reading and reenactment were found to perform at the second level of literacy response on the Levels of Literacy evaluation. No differences were found in relationship to the language used on any of the dependent measures. Findings fromqualitative data showed that children were involved in limited …
Date:
December 1996
Creator:
Gutierrez-Gomez, Catalina
System:
The UNT Digital Library
The Effects of English Immersion Mathematics Classes on the Mathematics Achievement and Aspiration of Eighth-Grade Spanish-Speaking LEP Students
This research grew from concerns relative to the mathematical performance of Spanish-speaking limited English proficient (LEP) public school students. This investigation studied the effects of the sheltered mathematics class on eighth-grade Spanish-speaking LEP students with regard to mathematical achievement, attitudes toward mathematics, the dropout rate, and the number of math credits earned in high school. The enrollment of a sheltered mathematics class was limited to LEP students. The purpose was to compare Spanish-speaking LEP students enrolled in sheltered mathematics classes with Spanish-speaking LEP students enrolled in regular mathematics classes. The research hypotheses were that achievement, mathematical attitudes, the dropout rate, and high school math credits earned would favor enrollment in sheltered mathematics classes. The data for achievement, dropout information, and mathematics course work completed were drawn from student records in the school district data bank. A mathematics attitude survey was given to a sample from the 1995-96 eighth-grade advanced level Spanish-speaking LEP students. The research hypotheses were not accepted. All of the populations did show an academic deficit. However, they did have more positive attitudes than negative attitudes toward mathematics. To improve achievement, staying in school, and a higher rate of inclusion in mathematics related careers the following recommendations were …
Date:
December 1996
Creator:
Hunt, Beverly Thornhill
System:
The UNT Digital Library
Effects of microstructural control on the failure kinetics and the reliability improvement of Al and Al-alloy interconnects
The reliability of microelectronic systems is often limited by electromigration failure in Al-based thin-film conducting lines which interconnect devices to form an integrated circuit. Under an applied electric field Al atoms migrate with the electron flow, causing a counterflow of vacancies that accumulate into voids, eventually leading to an open circuit failure. The work reported here is concerned with clarifying the microstructural mechanism of electromigration failure, and with developing a metallurgical method to improve the electromigration resistance of Al-based interconnects. Pure Al, Al-2Cu, and Al-2Cu-1Si lines with quasi-bamboo microstructures are explored as a function of heat treatment conditions and current density. The {open_quotes}weakest{close_quotes} microstructural unit that causes failure is identified by electron microscopy; with rare exceptions, failure occurs at the upstream end of the longest polygranular segment in a given line. This microstructural characteristic of electromigration failure is even observed in lines whose maximum segment lengths are less than a few microns. The time to failure appears to increase exponentially with decreasing longest polygranular segment length. A simple constitutive equation is reported to describe the failure kinetics as a function of the polygranular segment length that leads to failure. Given correct values of the kinetic constants included in the equation, …
Date:
December 1, 1996
Creator:
Kang, Seung Hyuk
System:
The UNT Digital Library
Elizabeth Barrett Browning: Quest for the Father
This dissertation explores Elizabeth Barrett's dependency on the archetypal Victorian patriarch. Chapter I focuses on the psychological effects of this father-daughter relationship on Elizabeth Barrett. Chapter II addresses Barrett's acceptance of the conventional female role, which is suggested by the nature and the situation of the women she chooses to depict. These women are placed in situations where they can reveal their devotion to family, their capacity for passive endurance, and their wish to resist. Almost always, they choose death as an alternative to life where a powerful father figure is present. Chapter III concentrates on the highly sentimental images of women and children whom Barrett places in a divine order, where they exist untouched by the concerns of the social order of which they are a part. Chapter IV shows that the conventional ideologies of the time, society's commitment to the "angel in the house," and the small number of female role models before her increase her difficulty to find herself a place within this order. Chapter V discusses Aurora Leigh's mission to find herself an identity and to maintain the connection with her father or father substitute. Despite Elizabeth Barrett's desire to break away from her paternal ties …
Date:
December 1996
Creator:
Yegenoglu, Dilara
System:
The UNT Digital Library
An Empirical Investigation of Personality and Situational Predictors of Job Burnout
Empirical research exploring the complex phenomenon of job burnout is still considered to be in its infancy stage. One clearly established stream of research, though, has focused on the antecedents of the three job burnout components: emotional exhaustion, depersonalization, and personal accomplishment. In particular, situational characteristics have received a great deal of attention to date. Four situational factors: (1) role ambiguity, (2) role conflict, (3) quantitative role overload, and (4) organizational support were included in this analysis to test their significance as predictors of job burnout. Another set of antecedents that has received far less attention in job burnout research is personal dispositions. Individual differences, most notably personality traits, may help us understand why some employees experience burnout whereas others do not, even within the same work environment. Four personality characteristics: (1) self-esteem, (2) locus of control, (3) communal orientation, and (4) negative affectivity were included to test their significance as predictors of job burnout. An on-site, self-report survey instrument was used. A sample of 149 human service professionals employed at a large government social services department voluntarily participated in this research. The main data analysis techniques used to test the research hypotheses were canonical correlation analysis and hierarchical analysis …
Date:
December 1996
Creator:
Caudill, Helene L. (Helene Litowsky)
System:
The UNT Digital Library
An Examination of the Accounting Debate over the Determination of Business Income: 1945-1952
George O. May's (1952) prescient statement that "if accounting had not already become, it was well on its way to becoming a political phenomenon" provides the motivation for this study. Changing socioeconomic relationships in the post-World War II period make it an ideal period to examine the politicalization of accounting. Keynesian economic policies justified active government intervention in the economy to manage demand and ensure full employment. No longer could it be assumed that competitive market forces would ensure that corporations produced goods and services at a socially optimal level or that income would be distributed equitably. Claims that accounting profit provides a measure of managerial efficiency are based on these premises. This dissertation examines the political dynamics of one particular accounting measurement debate--the debate over the determination of business income. Policies, such as wage/price controls, the excess profits tax, and the undistributed profits tax, brought the accounting income determination debate to center stage. The perseverance of the historic cost allocation model in the face of significant economic changes presents a fascinating glimpse of the important role accounting played in justifying continued reliance on the private property rights paradigm. I use retrodiction (reasoning from present to past) to examine why …
Date:
December 1996
Creator:
Pence, Diana Kay
System:
The UNT Digital Library
Experimental validation of the wavefield transform
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Date:
December 1, 1996
Creator:
Das, Kaushik K.
System:
The UNT Digital Library
Exploratory fuel-cell research: I. Direct-hydrocarbon polymer-electrolyte fuel cell. II. Mathematical modeling of fuel-cell cathodes
A strong need exists today for more efficient energy-conversion systems. Our reliance on limited fuel resources, such as petroleum for the majority of our energy needs makes it imperative that we utilize these resources as efficiently as possible. Higher-efficiency energy conversion also means less pollution, since less fuel is consumed and less exhaust created for the same energy output. Additionally, for many industrialized nations, such as the United States which must rely on petroleum imports, it is also imperative from a national-security standpoint to reduce the consumption of these precious resources. A substantial reduction of U.S. oil imports would result in a significant reduction of our trade deficit, as well as costly military spending to protect overseas petroleum resources. Therefore, energy-conversion devices which may utilize alternative fuels are also in strong demand. This paper describes research on fuel cells for transportation.
Date:
December 1, 1996
Creator:
Perry, M. L.; McLarnon, F. R.; Newman, J. S. & Cairns, E. J.
System:
The UNT Digital Library
Factors Influencing Myoelectric Wearing Patterns of Pediatric Prosthetics Patients
Upper limb deficiencies in children may be the result of trauma, disease, or congenital problems. Although biomechanical losses are the primary problem associated with a limb deficiency, the loss of such an obvious body part has cosmetic and psychosocial implications as well. Fitting a child with a prosthesis typically is the treatment chosen by families. Presently, there are three types of prostheses available for pediatric amputees, including passive, cable-operated, and myoelectric arms, but the myoelectric appears to be the most popular choice of children and their families. However, there is growing concern among clinicians that, despite its advanced technological capabilities, the myoelectric prosthesis is chosen for aesthetic rather than functional reasons. It is difficult, then, to justify the expense of fitting a myoelectric prosthesis when a more inexpensive prosthesis, or none at all, would be a more appropriate prescription. The question of when to prescribe a myoelectric prosthesis for a pediatric patient remains one of the most controversial questions in the field of prosthetics today due to this cost/benefit issue. In this study, the researcher examined psychological factors that may influence whether or not a child will wear a prosthesis and how that prosthesis will be used. Thirty prosthetics patients …
Date:
December 1996
Creator:
Glenn, Shannon M. (Shannon Richardson)
System:
The UNT Digital Library
Faculty Preparation in American Higher Education: Academic Lineage as a Predictor of Career Success
The purposes of this research were to determine (1) the extent to which faculty are employed by the types of institutions from which they earned their doctorates in the United States, (2) the extent to which faculty have higher professional rank at employing institutions tat are the same type of institutions as those from which they earned their doctorates, (3) the extent to which female faculty are employed by the types of institutions from which they earned their doctorates, (4) the extent to which female faculty have higher professional rank at employing institutions that are the same type of institutions as those from which they received their doctorates, and (5) the extent of variability across academic disciplines in which faculty are employed by types of institutions from which they earned their doctorates. An exhaustive review of the literature on academic lineage was used to develop this research. All stratified random sample of 260 institutions from 2,873 colleges and universities was selected by Carnegie Foundation classification categories. Institutions were selected at random until the number of faculty members in each category corresponded to the estimated national distribution of faculty across Carnegie classification categories (n=3,940). The analyses revealed that the majority of …
Date:
December 1996
Creator:
Ellis, Martha M. (Martha McCracken)
System:
The UNT Digital Library
Family and Self-concept Factors Contributing to the Adjustment and Achievement of Early Entrants
The purpose of this study was to investigate the role of students' self-concept and their perceptions of family environment in the psychosocial adjustment and academic achievement of accelerated college students in a residential program. A secondary purpose was to investigate the differential role of those factors for students of diverse ethnic backgrounds.
Date:
December 1996
Creator:
Caplan, Sheryl Mink
System:
The UNT Digital Library
Financial Reporting in Poland: Privatization of Select Firms Traded on the Warsaw Stock Exchange
Poland's transition from a centrally-planned economy (CPE) to a market economy began in 1989. Building a market economy out of the failures of a CPE represents an unprecedented process in the history of economic development. At the core of the transition is the privatization of state-owned enterprises (SOEs). Many problems encountered during privatization are accounting related, and before privatization can occur valuation issues must be resolved. What has been the role of accounting in Poland's transition? Accounting is an interactive process that reflects and creates reality. The accounting process facilitates the calculation of the value created by a firm by attempting to trace the flow of resources through the value-creating process, and it identifies, measures, records, summarizes, and reports transactions. How these transactions are internalized determines how they flow through the accounting process, and, because the former SOEs are complex organizations in transition, decisions concerning when and how to record events can be diverse. The primary objective of this study is to provide insight into the accounting transition in Poland by addressing issues of ownership rights, valuation, financial reporting, and disclosure. The research question is: How is accounting transforming and being transformed in Poland? The research question is addressed in …
Date:
December 1996
Creator:
De la Rosa, Denise M. (Denise Mary), 1949-
System:
The UNT Digital Library
Fluorescence spectroscopy of single molecules at room temperature and its applications
We performed fluorescence spectroscopy of single and pairs of dye molecules on a surface at room temperature. Near field scanning optical microscope (NSOM) and far field scanning optical microscope with multi-color excitation/detection capability were built. The instrument is capable of optical imaging with 100nm resolution and has the sensitivity necessary for single molecule detection. A variety of dynamic events which cannot be observed from an ensemble of molecules is revealed when the molecules are probed one at a time. They include (1) spectral jumps correlated with dark states, (2) individually resolved quantum jumps to and from the meta-stable triplet state, (3) rotational jumps due to desorption/readsorption events of single molecules on the surface. For these studies, a computer controlled optical system which automatically and rapidly locates and performs spectroscopic measurements on single molecules was developed. We also studied the interaction between closely spaced pairs of molecules. In particular, fluorescence resonance energy transfer between a single resonant pair of donor and acceptor molecules was measured. Photodestruction dynamics of the donor or acceptor were used to determine the presence and efficiency of energy transfer Dual molecule spectroscopy was extended to a non-resonant pair of molecules to obtain high resolution differential distance information. …
Date:
December 1, 1996
Creator:
Ha, Taekjip
System:
The UNT Digital Library
A Follow-Up Study of the Subsequent Educational Placement and Categorical Classification of Preschool Early Childhood Special Education Students in Selected Rural and Urban Settings
Proponents of special education early childhood interventions programs have promoted the assumptions that these programs: (a) will have a positive effect on the long-term outcomes of preschool children with disabilities; (b) will result in some children no longer requiring special education services throughout their elementary school years; and (c) will facilitate the need for fewer services for those students who do remain in special education programs throughout their education. The purpose of this follow-up study is to identify and describe the placement decisions and the changes of exceptionality classification for children identified as special education early childhood students over the course of six follow-up years. This study (a) identifies 108 children from rural and urban school settings who were enrolled in Early Childhood Special Education (ECSE) programs in 1990-91, (b) documents their categorical label and educational placement six years later, and (c) then determines the differences in the number of hours rural and urban students receive special education and/or related services in 1996-97.
Date:
December 1996
Creator:
Lechtenberger, DeAnn
System:
The UNT Digital Library
Freshman Music Students' Identification With Expected Tasks in the Music Theory Class as a Relevant Part of Becoming a Musician
The purpose of the study was to investigate freshman music students' identification with expected tasks in music theory class including aural, written, and performance requirements. The second research problem compared students' descriptions with actions in class to determine the presence of role taking (the conscious adherence to a set of behaviors) or role playing (the unconscious assumption of a set of behaviors).
Date:
December 1996
Creator:
Kteily-O'Sullivan, Laila Rose
System:
The UNT Digital Library
Frontal Lobe Functions in Attention Deficit Hyperactivity Disorder from Children to Young Adults
Individuals with attention deficit hyperactivity disorder (ADHD) with and without a learning disorder (LD) and a control group of clinically referred individuals with behavioral problems were compared on four neuropsychological tests of frontal lobe functioning. Test results were collected to examine if ADHD individuals with and without LD have deficits in frontal lobe functioning. Two age groups were used to examine developmental differences. In the six to ten age group there were 27 ADHD, 17 ADHD/LD and seven other clinically referred individuals. In the 11 -20 age group there were 12 ADHD, 23 ADHD/LD and 24 other clinically referred individuals. The ADHD and ADHD/LD groups performed at a lower level than the other diagnostic group on the freedom from distractibility factor of the WISC-R and the omission and commission errors of the Gordon Diagnostic system. Differences for the ADHD and ADHD/LD groups were also found on the number of correct responses for the Gordon Diagnostic system, the Speech Sounds test and the Seashore Rhythm test. The developmental differences that were found were not influenced by diagnosis. The deficits that the ADHD individuals with and without LD demonstrated were not affected by age.
Date:
December 1996
Creator:
Kramer-Stutts, Traci A.
System:
The UNT Digital Library
The Fusion of Predominantly Linear Marks and Solidly Rendered Forms as an Expressive Agent in Painting
I plan to investigate the fusion of predominantly linear marks with solidly rendered forms to create a sense of space, depth, and texture within a series of paintings. The investigation will seek to answer a four part problem related to the creation of a series of paintings. The four part problem will explore whether or not the combined use of line, textural surface information, and buried images will have the potential to operate as an expressive agent in painting. This investigation will also address the series as a whole by evaluating the evolutionary process which may occur when color and solidly rendered forms are re-introduced to the canvas and combined with the primarily linear marks.
Date:
December 1996
Creator:
La Rosa, Angela
System:
The UNT Digital Library
Gerhart Hauptmann: Germany throught the Eyes of the Artist
Born in 1862, Gerhart Hauptmann witnessed the creation of the German Empire, the Great War, the Weimar Republic, the Third Reich, and World War II before his death in 1946. Through his works as Germany's premier playwright, Hauptmann traces and exemplifies Germany's social, cultural, and political history during the late-nineteenth to mid-twentieth centuries, and comments on the social and political climate of each era. Hauptmann wrote more than forty plays, twenty novels, hundreds of poems, and numerous journal articles that reveal his ideas on politics and society. His ideas are reinforced in the hundreds of unpublished volumes of his diary and his copious letters preserved in the Prussian Staatsbibliothek, Berlin. In the 1960s, Germans celebrated Hauptmann's centenary as authors who had known or admired Hauptmann published biographies that chronicled his life but revealed little of his private thoughts. This dissertation examines Hauptmann's life from his early childhood through his adult life with emphasis on social and political commentaries found in his works, diaries, and letters. Hauptmann told of the social problems alcohol and greed created and used historical events to express his concern about Germany's labor and social conditions. He also used historical events to address the political problems that …
Date:
December 1996
Creator:
Igo, William Scott
System:
The UNT Digital Library
High resolution x-ray fluorescence spectroscopy - a new technique for site- and spin-selectivity
X-ray spectroscopy has long been used to elucidate electronic and structural information of molecules. One of the weaknesses of x-ray absorption is its sensitivity to all of the atoms of a particular element in a sample. Through out this thesis, a new technique for enhancing the site- and spin-selectivity of the x-ray absorption has been developed. By high resolution fluorescence detection, the chemical sensitivity of K emission spectra can be used to identify oxidation and spin states; it can also be used to facilitate site-selective X-ray Absorption Near Edge Structure (XANES) and site-selective Extended X-ray Absorption Fine Structure (EXAFS). The spin polarization in K fluorescence could be used to generate spin selective XANES or spin-polarized EXAFS, which provides a new measure of the spin density, or the nature of magnetic neighboring atoms. Finally, dramatic line-sharpening effects by the combination of absorption and emission processes allow observation of structure that is normally unobservable. All these unique characters can enormously simplify a complex x-ray spectrum. Applications of this novel technique have generated information from various transition-metal model compounds to metalloproteins. The absorption and emission spectra by high resolution fluorescence detection are interdependent. The ligand field multiplet model has been used for the …
Date:
December 1, 1996
Creator:
Wang, Xin
System:
The UNT Digital Library
The History, Modern Development, and Future of the Lutheran Theological Seminary (Hong Kong)
This study is an historical and institutional analysis of The Lutheran Theological Seminary (LTS) in Hong Kong. The study first traces the seminary's theological and missiological roots and its history from 1913 to 1948, from its founding in Hubei Province, China to its move to Hong Kong because of civil war. Next, it describes major events of the early years in Hong Kong and the factors which contributed to an institutional crisis in the late 1960's. The study then analyzes the modern development of the institution, specifically the years 1971 to 1993. During this period several regional church groups joined together to create a collaborative educational effort through LTS, the school gained regional accreditation, expanded the ranks of its Chinese faculty, developed Asian financial support, and constructed a new campus. The modern development of the institution cannot be understood apart from a comprehension of the twenty-two year administration of Andrew Hsiao, the first Chinese president of the school. A chapter is therefore included on Andrew Hsiao's personal and academic background, the distinctives of his administration, and the strengths and weaknesses of his presidency. A current profile of the school is provided including its purposes, theology, organizational structure, faculty, student body, …
Date:
December 1996
Creator:
Lowder, Tom C. (Tom Charles)
System:
The UNT Digital Library