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  Partner: UNT Libraries
 Degree Level: Doctoral
 Collection: UNT Theses and Dissertations
Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe

Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe

Date: May 1973
Creator: Freeman, Ronald Harold
Description: Electron densities and collision frequencies were obtained on a number of gases in a dc discharge at low pressures (0.70-2mm of Hg). These measurements were performed by microwave probing of a filament of the dc discharge placed coaxially in a resonant cavity operating in a TM₀₁₀ mode. The equipment and techniques for making the microwave measurements employing the resonant cavity are described. One of the main features of this investigation is the technique of differentiating the resonance signal of the loaded cavity in order to make accurate measurements of the resonant frequency and half-power point frequencies.
Contributing Partner: UNT Libraries
The Effect of Giving Class Time for Reading on the Reading Achievement of Fourth Graders and the Effect of Using a Computer-Based Reading Management Program on the Reading Achievement of Fifth Graders

The Effect of Giving Class Time for Reading on the Reading Achievement of Fourth Graders and the Effect of Using a Computer-Based Reading Management Program on the Reading Achievement of Fifth Graders

Date: May 1998
Creator: Peters, Rochelle
Description: This study investigated the problem that educators have throughout the state of Texas. The problem educators have is that reading scores continue to fall short of state expectations. This study investigated the effectiveness of 90 minutes of class time given for reading to students who use the Electronic Bookshelf Program and the effectiveness of the Electronic Bookshelf Program, which is being sold to school districts throughout the nation. The literature review focused on the effectiveness of independent reading on reading achievement, and the effectiveness of using computer-based reading programs to increase reading achievement.
Contributing Partner: UNT Libraries
Chemical Equilibria in Binary Solvents

Chemical Equilibria in Binary Solvents

Date: August 1997
Creator: McHale, Mary E. R.
Description: Dissertation research involves development of Mobile Order Theory thermodynamic models to mathematically describe and predict the solubility, spectral properties, protonation equilibrium constants and two-phase partitioning behavior of solutes dissolved in binary solvent mixtures of analytical importance. Information gained provide a better understanding of solute-solvent and solvent-solvent interactions at the molecular level, which will facilitate the development of better chemical separation methods based upon both gas-liquid and high-performance liquid chromatography, and better analysis methods based upon complexiometric and spectroscopic methods. Dissertation research emphasizes chemical equilibria in systems containing alcohol cosolvents with the understanding that knowledge gained will be transferable to more environmentally friendly aqueous-organic solvent mixtures.
Contributing Partner: UNT Libraries
Perceived Barriers to the Implementation of Site Based Management

Perceived Barriers to the Implementation of Site Based Management

Date: August 1998
Creator: Hancock, Don G. (Don Gaylon)
Description: The purpose of this study was to identify perceived barriers to the implementation of site-based management for administrators in the Region XII Service Center area in Texas.
Contributing Partner: UNT Libraries
Susceptibility of College Students to Alcohol Abuse and Alcohol Related Problems: the Impact of Family Environmental Factors

Susceptibility of College Students to Alcohol Abuse and Alcohol Related Problems: the Impact of Family Environmental Factors

Date: December 1998
Creator: Blue, James M. (James Michael)
Description: The purpose of this study was to examine the impact of parental divorce, level of family conflict, and family history of alcoholism on the alcohol use patterns of college students. Gender differences were also explored. Multivariate Analysis of Variance revealed mixed results. Parental marital status was found to have no significant effect on college students' alcohol behavior. High family conflict had a significant impact on both level of current alcohol use and level of alcohol related problems. A positive family history of alcoholism was found to have effects on the level of alcohol related problems encountered by students. Gender played a significant role, with males reporting higher levels of alcohol-related problems. No significant interactions were found. Results, contributions and limitations of the study are discussed.
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Creating a Mythistory: Texas Historians in the Nineteenth Century

Creating a Mythistory: Texas Historians in the Nineteenth Century

Date: August 1998
Creator: McLemore, Laura Lyons, 1950-
Description: Many historians have acknowledged the temptation to portray people as they see themselves and wish to be seen, blending history and ideology. The result is "mythistory." Twentieth century Texas writers and historians, remarking upon the exceptional durability of the Texas mythistory that emerged from the nineteenth century, have questioned its resistance to revision throughout the twentieth century. By placing the writing of Texas history within the context of American and European intellectual climates and history writing generally, from the close of the eighteenth century to the beginning of the twentieth, it is possible to identify a pattern that provides some insight into the popularity and persistence of Texas mythistory.
Contributing Partner: UNT Libraries
Out with the Old? Voting Behavior and Party System Change in Canada and the United States in the 1990's

Out with the Old? Voting Behavior and Party System Change in Canada and the United States in the 1990's

Date: December 1997
Creator: Rapkin, Jonathan D.
Description: This study has attempted to explain the dramatic challenges to the existing party system that occurred in Canada and the United States in the early 1990s. The emergence of new political movements with substantial power at the ballot box has transformed both party systems. The rise of United We Stand America in the United States, and the Reform Party in Canada prompts scholars to ask what forces engender such movements. This study demonstrates that models of economic voting and key models of party system change are both instrumental for understanding the rise of new political movements.
Contributing Partner: UNT Libraries
Participation in Student Financial Aid Programs during the Freshman Year and Persistence in a Private University

Participation in Student Financial Aid Programs during the Freshman Year and Persistence in a Private University

Date: August 1997
Creator: Munson, Leo W.
Description: The study determined the overall persistence rate of first-time full-time entrants into a mid-sized private university during the fall semesters 1989 to 1991 to the 2nd year (1990 to 1992). The study compared the retention rate of recipients and nonrecipients of a variety of financial aid programs. Included is a comparison of groups receiving various types of financial assistance and whether or not there are differences between the groups with respect to types of assistance, gender, ethnicity (African American, Hispanic, Anglo), high school grade point average, and national test scores (SAT, ACT). The types of assistance studied were categorized by academic scholarships, university-operated student employment, need-based grants, activity awards, entitlements, and loans. The question of whether renewal, elimination, or reduction in assistance relates to retention was also studied.
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Unique applications of cultured neuronal networks in pharmacology, toxicology, and basic neuroscience

Unique applications of cultured neuronal networks in pharmacology, toxicology, and basic neuroscience

Date: May 2001
Creator: Keefer, Edward W.
Description: This dissertation research explored the capabilities of neuronal networks grown on substrate integrated microelectrode arrays in vitro with emphasis on utilizing such preparations in three specific application domains: pharmacology and drug development, biosensors and neurotoxicology, and the study of burst and synaptic mechanisms. Chapter 1 details the testing of seven novel AChE inhibitors, demonstrating that neuronal networks rapidly detect small molecular differences in closely related compounds, and reveal information about their probable physiological effects that are not attainable through biochemical characterization alone. Chapter 2 shows how neuronal networks may be used to classify and characterize an unknown compound. The compound, trimethylol propane phosphate (TMPP) elicited changes in network activity that resembled those induced by bicuculline, a known epileptogenic. Further work determined that TMPP produces its effects on network activity through a competitive inhibition of the GABAA receptor. This demonstrates that neuronal networks can provide rapid, reliable warning of the presence of toxic substances, and from the manner in which the spontaneous activity changes provide information on the class of compound present and its potential physiological effects. Additional simple pharmacological tests can provide valuable information on primary mechanisms involved in the altered neuronal network responses. Chapter 3 explores the effects produced ...
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Empirical Research of Decision-making Effectiveness When Using Differing Presentation Formats Under Varying Decision Tasks

Empirical Research of Decision-making Effectiveness When Using Differing Presentation Formats Under Varying Decision Tasks

Date: December 1988
Creator: Hard, Nancy J. (Nancy Jean)
Description: The purpose of this research was to determine if presentation format, given a particular task to be performed, would affect the decision-making process of financial decision makers. The problem motivating this study is the potential for managers to make inefficient decisions when they use reports which are presented inappropriately for a given task.
Contributing Partner: UNT Libraries
The Use of an Academic Library by University Students

The Use of an Academic Library by University Students

Date: August 1988
Creator: Harrell, Charles B.
Description: Academic librarians have for a number of decades been interested in understanding more about how and why students use libraries. This study contributes to that area of library administration by focusing on nine factors thought to be associated with student use of academic libraries.
Contributing Partner: UNT Libraries
A Comparison of the Desirability and Feasibility of Accountability Measures as Perceived by Public School Administrators and Teachers

A Comparison of the Desirability and Feasibility of Accountability Measures as Perceived by Public School Administrators and Teachers

Date: May 1973
Creator: Kiamie, Robert A.
Description: This study had three main purposes. The first was to determine the perceptions of public school administrators toward desirability and toward feasibility of accountability items. The second was to determine the perceptions of public school teachers toward desirability and toward feasibility of accountability items. The third was to compare the perceptions of administrators with those of teachers and to indicate areas where they seemed to be in agreement or disagreement.
Contributing Partner: UNT Libraries
Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela

Light Spectra Distributions in Temperate Conifer-Forest Canopy Gaps, Oregon and in Tropical Cloud-Forest Canopy, Venezuela

Date: December 1997
Creator: Monteleone, Susan Elaine
Description: Light spectra distributions were measured in two different montane forests: temperate and tropical. Spectral light measurements were made in different sized canopy gaps in the conifer forest at H. J. Andrews Experimental Forest in Oregon, USA. Researchers at Oregon State University created these gaps of 20 m, 30 m, and 50 m in diameter. In the tropical cloud forest, spectral light measurements were made in two plots that were permanently established at La Mucuy Parque Nacional in Venezuela, in collaboration with researchers at Universidad de Los Andes. In both studies, spectra and distributions of physiologically active light were analyzed: red, far-red, R/FR ratio, and blue light.
Contributing Partner: UNT Libraries
Reading Informational Tradebooks Aloud to Inner City Intermediate Fourth and Sixth Grade Students : A Comparison of Two Styles

Reading Informational Tradebooks Aloud to Inner City Intermediate Fourth and Sixth Grade Students : A Comparison of Two Styles

Date: December 1997
Creator: Dougherty, Pamela S.
Description: This study measured the effects of reading aloud informational books to fourth and sixth grade students in the inner city.
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An Exploratory Investigation of the Origins and Regulatory Actions of the United Kingdom's Financial Reporting Review Panel

An Exploratory Investigation of the Origins and Regulatory Actions of the United Kingdom's Financial Reporting Review Panel

Date: December 1998
Creator: Styles, Alan K. (Alan Keith)
Description: In 1990, the accounting profession and the British government worked together to establish a new regulatory framework for financial reporting in the United Kingdom (UK), the Financial Reporting Council (FRC) and its two subsidiaries, the Accounting Standards Board (ASB) and the Financial Reporting Review Panel (FRRP). The FRRP enforces companies' compliance with the ASB's accounting standards and the accounting provisions of the UK Companies Act. Only one study, Brandt et al. (1997), has examined the activities and effectiveness of the FRRP. This dissertation attempts to extend Brandt et. al (1997) and add to understanding of the origins and regulatory actions of the FRRP.
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A Comparative Study and Model of the Certification Requirements for Vocational Office Education Teacher-Coordinators in the United States

A Comparative Study and Model of the Certification Requirements for Vocational Office Education Teacher-Coordinators in the United States

Date: May 1973
Creator: Bounds, Joan Karen Johnston, 1936-
Description: The purposes of the study were (1) to describe the historical rationale for teacher certification, (2) to survey and report the present requirement of the states for certification as a vocational office education teacher-coordinator, (3) to survey leading business and office education educators for recommendations for vocational office education teacher-coordinator certification requirements, (4) to examine, survey, and report the characteristics and qualifications of employed vocational office education teacher-coordinators, and (5) to develop a model of criteria representing ideal standards for initial and continuing certification requirements for vocational office education teacher-coordinators.
Contributing Partner: UNT Libraries
Cognitive Dysfunction in Systemic Lupus Erythematosus

Cognitive Dysfunction in Systemic Lupus Erythematosus

Date: August 1997
Creator: Niemela-Waller, Kirsi (Kirsi M.)
Description: The purpose of the study was to determine the point prevalence of cognitive dysfunction in patients with systemic lupus erythematosus (SLE) and to investigate its association with corticosteroids and depression. The severity of dysfunction and the pattern of cognitive changes were examined. This study hypothesized that cognitive dysfunction is common in SLE and many previous studies have underestimated its prevalence, partially due to using limited neuropsychological batteries and insensitive test instruments. It was further hypothesized that the pattern of cognitive changes in SLE patients will resemble that observed in subcortical dementias.
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Natural Smooth Measures on the Leaves of the Unstable Manifold of Open Billiard Dynamical Systems

Natural Smooth Measures on the Leaves of the Unstable Manifold of Open Billiard Dynamical Systems

Date: December 1998
Creator: Richardson, Peter A. (Peter Adolph), 1955-
Description: In this paper, we prove, for a certain class of open billiard dynamical systems, the existence of a family of smooth probability measures on the leaves of the dynamical system's unstable manifold. These measures describe the conditional asymptotic behavior of forward trajectories of the system. Furthermore, properties of these families are proven which are germane to the PYC programme for these systems. Strong sufficient conditions for the uniqueness of such families are given which depend upon geometric properties of the system's phase space. In particular, these results hold for a fairly nonrestrictive class of triangular configurations of scatterers.
Contributing Partner: UNT Libraries
The Rhetoric of Posthumanism in Four Twentieth-Century International Novels

The Rhetoric of Posthumanism in Four Twentieth-Century International Novels

Date: August 1998
Creator: Lin, Lidan
Description: The dissertation traces the trope of the incomplete character in four twentieth-century cosmopolitan novels that reflect European colonialism in a global context. I argue that, by creating characters sharply aware of the insufficiency of the Self and thus constantly seeking the constitutive participation of the Other, the four authors E. M. Forster, Samuel Beckett, J. M. Coetzee, and Congwen Shen all dramatize the incomplete character as an agent of postcolonial resistance to Western humanism that, tending to enforce the divide between the Self and the Other, provided the epistemological basis for the emergence of European colonialism. For example, Fielding's good-willed aspiration to forge cross-cultural friendship in A Passage to India; Murphy's dogged search for recognition of his Irish identity in Murphy; Susan's unfailing compassion to restore Friday's lost speech in Foe; and Changshun Teng, the Chinese orange-grower's warm-hearted generosity toward his customers in Long River--all these textual occasions dramatize the incomplete character's anxiety over the Other's rejection that will impair the fullness of his or her being, rendering it solitary and empty. I relate this anxiety to the theory of "posthumanism" advanced by such thinkers as Marx, Bakhtin, Sartre, and Lacan; in their texts the humanist view of the individual ...
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The Relationship of Fifth-Grade Students' Self-Concepts and Attitudes toward Mathematics to Academic Achievement in Arithmetical Computation, Concepts, and Application

The Relationship of Fifth-Grade Students' Self-Concepts and Attitudes toward Mathematics to Academic Achievement in Arithmetical Computation, Concepts, and Application

Date: August 1971
Creator: Moore, Bobbie Dean
Description: The purpose of this study was to determine the interrelationship of self-concept and attitude toward mathematics to academic achievement in the areas of arithmetical computation, concepts, and application.
Contributing Partner: UNT Libraries
A Study of Differences Perceived by Information Systems Professionals in the Systems Development Job Environment Due to the Use of ICASE Technology

A Study of Differences Perceived by Information Systems Professionals in the Systems Development Job Environment Due to the Use of ICASE Technology

Date: August 1997
Creator: Troboy, Lori Kim
Description: Information systems professionals now face the automation of their own work in integrated computer aided software engineering. Organizations need to achieve all the leverage possible from costly IT implementations to enhance competitiveness, profitability, and survival in a rapidly changing environment. ICASE technology is a part of the infrastructure necessary to meet this challenge but appears to present significant difficulties in implementation.
Contributing Partner: UNT Libraries
Effects of Frustration Tolerance Training on Young Institutionalized Retarded Children

Effects of Frustration Tolerance Training on Young Institutionalized Retarded Children

Date: January 1968
Creator: Landrum, Jerry Lynn
Description: The major problem investigated was to ascertain the extent to which a training program designed specifically to increase frustration tolerance would reduce selected behavioral problems in institutionalized mentally retarded children. Of lesser importance was the problem of examining the extent to which the prescribed training program had differential effects on brain-injured and non-brain-injured retarded children.
Contributing Partner: UNT Libraries
Convergence of Self and Other Ratings of Personality: a Structural Equation Analysis

Convergence of Self and Other Ratings of Personality: a Structural Equation Analysis

Date: May 1998
Creator: McElhenie, Michael K. (Michael Keith)
Description: Recently, multi-source feedback has been a popular way of providing performance-related feedback to individuals in many organizations. Many who use multi-source feedback consider Rating Convergence, others seeing target individuals as they see themselves, to be a positive outcome of this process. However, the variables that account for Rating Convergence are not known. This study investigated whether the personality factor Extroversion and Behavioral Consistency, acting as a moderator variable, could account for Self-other Rating Convergence, particularly the Convergence between self and peer Ratings. The sample consisted of 235 mid-level managers from a variety of industries who were participants in individual career development workshops. Using structural equation modeling, the results indicated that a model consisting of a single Extroversion factor could account for the convergence of self-peer ratings. This finding calls into question the significance of Rating Convergence when using multi-source rating instruments that provide feedback on trait characteristics since it may be heavily influenced by a single personality factor rather than observers' comprehensive understanding of the ratee's performance.
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Analysis of Phytoplankton Responses to Water Chemistry Dynamics in a Moderately Eutrophic North Texas Reservoir

Analysis of Phytoplankton Responses to Water Chemistry Dynamics in a Moderately Eutrophic North Texas Reservoir

Date: May 1998
Creator: Banks, Kenneth E. (Kenneth Edward)
Description: Canonical correspondence analysis (CCA) was used to explore relationships between measured environmental variables and in situ phytoplankton communities in a moderately eutrophic North Texas Reservoir.
Contributing Partner: UNT Libraries