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open access

Developing a Forest Gap Model to Be Applied to a Watershed-scaled Landscape in the Cross Timbers Ecoregion Using a Topographic Wetness Index

Description: A method was developed for extending a fine-scaled forest gap model to a watershed-scaled landscape, using the Eastern Cross Timbers ecoregion as a case study for the method. A topographic wetness index calculated from digital elevation data was used as a measure of hydrologic across the modeled landscape, and the gap model modified to have with a topographically-based hydrologic input parameter. The model was parameterized by terrain type units that were defined using combinations of USDA soil… more
Date: August 2014
Creator: Goetz, Heinrich (Heinrich Erwin)
Partner: UNT Libraries
open access

A Structural and Psychometric Evaluation of a Situational Judgment Test: The Workplace Skills Survey

Description: Some basic but desirable employability skills are antecedents of job performance. The Workplace Skills Survey (WSS) is a 48-item situational judgment test (SJT) used to assess non-technical workplace skills for both entry-level and experienced workers. Unfortunately, the psychometric evidence for use of its scores is far from adequate. The purpose of current study was two-fold: (a) to examine the proposed structure of WSS scores using confirmatory factor analysis (CFA), and (b) to explore the W… more
Date: August 2014
Creator: Wei, Min
Partner: UNT Libraries
open access

Would You Do Your Homework for a Chance to Improve Your Quiz Score?

Description: Students who complete homework generally do better on measures of academic performance such as quizzes, exams, and overall course grades. We examined the effects of contingent access to second quiz attempts on the percentage of undergraduate students completing homework to mastery. The study was conducted in an Introduction to Behavior Analysis course that, historically, had only 70% of students on average completing homework. An adapted multiple baseline design across sections was used for fou… more
Date: August 2014
Creator: Zimmerman, Karl J.
Partner: UNT Libraries
open access

Heart Rate Variability as an Indicator of Stress and Resilience in HIV+ Adults: An Analysis of a Stigma Related Stress Induction

Description: Learning of a positive diagnosis of HIV may be one of the most challenging and stressful events in life. The memory of this event is emotionally laden, and even years later evokes an emotional response. Similarly, many people living with HIV (PLH) have memories of the first time they were treated differently because of their diagnosis. While research frequently examines the subjective of stress, few studies have examined biological markers of stress in people living with HIV. Heart Rate Variabi… more
Date: August 2014
Creator: Lewis, Kimberly
Partner: UNT Libraries
open access

An Interactive Framework for Teaching Fundamentals of Digital Logic Design and VLSI Design

Description: Integrated Circuits (ICs) have a broad range of applications in healthcare, military, consumer electronics etc. The acronym VLSI stands for Very Large Scale Integration and is a process of making ICs by placing millions of transistors on a single chip. Because of advancements in VLSI design technologies, ICs are getting smaller, faster in speed and more efficient, making personal devices handy, and with more features. In this thesis work an interactive framework is designed in which the fundame… more
Date: August 2014
Creator: Battina, Brahmasree
Partner: UNT Libraries
open access

Networks of Social Debt in Early Modern Literature and Culture

Description: This thesis argues that social debt profoundly transformed the environment in which literature was produced and experienced in the early modern period. In each chapter, I examine the various ways in which social debt affected Renaissance writers and the literature they produced. While considering the cultural changes regarding patronage, love, friendship, and debt, I will analyze the poetry and drama of Ben Jonson, Lady Mary Wroth, William Shakespeare, and Thomas Middleton. Each of these writer… more
Date: August 2014
Creator: Criswell, Christopher C.
Partner: UNT Libraries
open access

Penumbra

Description: This thesis consists of a collection of poems. The poems entail a discussion of the weight of human decisions with regards to gender, sexuality, music, religion, and environment. A great deal of these pieces are in conversation with a type of death or an eclipsed ending in order to examine the outcome of each varied individual response to mortality.
Date: August 2014
Creator: Brizendine, Elizabeth Katherine
Partner: UNT Libraries
open access

The Effects of Providing a Brief Training Package to Daycare Teachers to Teach a Child a Sign for Social Attention

Description: Behavioral skills training (BST) packages have been successful in increasing change agents’ correct implementation of various procedures. The current study evaluated the effects of a brief BST package to train daycare teachers to implement incidental teaching procedures with toddlers. The brief BST consisted of a set of written instructions, a two-minute video model, rehearsal, and feedback during session. Results demonstrated that teachers increased their correct implementation of incidental t… more
Date: August 2014
Creator: Zimmerman, Valerie L. V.
Partner: UNT Libraries
open access

The State of the Field of Critical Information Literacy in Higher Education

Description: The purpose of this dissertation was to explore the state of critical information literacy (CIL) in higher education as it is enacted and understood by academic librarians. This qualitative study investigated the institutional support, nonsupport, and barriers to CIL programs and the effectiveness of experiential critical pedagogy for information literacy (IL) learning as taught and studied by 19 CIL specialists. Purposeful sampling was used to gather a sample of 17 academic librarians and two … more
Date: August 2014
Creator: Downey, Annie L.
Partner: UNT Libraries
open access

Highly Efficient Single Frequency Blue Laser Generation by Second Harmonic Generation of Infrared Lasers Using Quasi Phase Matching in Periodically Poled Ferroelectric Crystals

Description: Performance and reliability of solid state laser diodes in the IR region exceeds those in the visible and UV part of the light spectrum. Single frequency visible and UV laser diodes with higher than 500 mW power are not available commercially. However we successfully stabilized a multi-longitudinal mode IR laser to 860 mW single frequency. This means high efficiency harmonic generation using this laser can produce visible and UV laser light not available otherwise. In this study we examined… more
Date: August 2014
Creator: Khademian, Ali
Partner: UNT Libraries
open access

Women Have Higher Skin Temperature on the Back during Treadmill Exercise in a Hot, Humid Environment

Description: A common measurement of body temperature during exercise in a hot, humid environment is mean skin temperature collected from 3-12 sites on the body. However, such an approach fails to demonstrate localized differences in skin temperature that are likely to exist as a function of gender. The purpose of this study was to examine potential differences in skin temperature between men and women at 17 different locations on the body. Young women (21 ± 1 y; n = 11) and men (23 ± 3; n = 10) were recrui… more
Date: August 2014
Creator: Venable, Adam Steven
Partner: UNT Libraries
open access

“The Scherzo for Trombone Quartet” by John La Montaine: A Performer’s Edition

Description: In 1939, during his studies at the Eastman School of Music, John La Montaine (1920-2013) composed a Scherzo for four trombones. The Scherzo was revised more than 60 years later, becoming the third movement of a three-movement trombone quartet completed in 2001. Interestingly, the same Scherzo subsequently appeared in two of his later works: first the final movement of his Piano Concerto No. 4 Op. 59 (1989) and 12 years later as the final movement of a three-movement Trombone Quartet. The thesis… more
Date: August 2014
Creator: Begnoche, David J.
Partner: UNT Libraries
open access

The Influence of Family and Cultural Values on the Career Development of Asian Americans

Description: Factors influencing the career development of Asian Americans have included family influences, including parental expectations and parent-young adult relationship, and adherence to Asian cultural values. Variables such as interests and values have been shown to be important factors in the career-related decisions of western, European American culture individuals, although interests have been found to be less important for Asian Americans. Research suggests that parental expectations and adher… more
Date: August 2014
Creator: Sandhu, Gurminder
Partner: UNT Libraries
open access

Room of Windows

Description: This thesis consists of a collection of poems and a critical preface. The preface examines the collaborative process as integral to art-making. Using a range of poems and prosody essays as support, I argue that reciprocal relationships are intrinsic to poetry, providing a model for actual collaboration. I also examine my own collaboration with a visual artist, which resulted in many of the poems in this collection.
Date: August 2014
Creator: Lynch, Erin
Partner: UNT Libraries
open access

Criterion Validity of Common Career Interest Inventories: Relative Efficacy with High School Seniors

Description: Professional school counselors frequently use career interest inventories as part of a comprehensive guidance program to help students create a post-secondary school plan. The present study evaluates the validity of three commonly used interest inventories, the Myers-Briggs Type Indicator, Self-Directed Search, and Strong Interest Inventory on field of study choice for graduating high school seniors (N = 616) from a large, suburban high school in Texas. Students identified their intended posts… more
Date: August 2014
Creator: Martin, Summer M.G.
Partner: UNT Libraries
open access

Investigation of Strategies for Improving STR Typing of Degraded and Low Copy DNA from Human Skeletal Remains and Bloodstains

Description: Forensic STR analysis is limited by the quality and quantity of DNA. Significant damage or alteration to the molecular structure of DNA by depurination, crosslinking, base modification, and strand breakage can impact typing success. Two methods that could potentially improve STR typing of challenged samples were explored: an in vitro DNA repair assay (PreCR™ Repair Mix) and whole genome amplification. Results with the repair assay showed trends of improved performance of STR profiling of blea… more
Date: August 2014
Creator: Ambers, Angie D.
Partner: UNT Libraries
open access

brk1 and dcd1 Act Synergistically in Subsidiary Cell Formation in Zea mays

Description: Subsidiary mother cell (SMC) divisions during stomatal complex formation in Zea mays are asymmetric generating a small subsidiary cell (SC) and a larger epidermal cell. Mutants with a high number of abnormally shaped subsidiary cells include the brick1 (brk1) and discordia1 (dcd1) mutants. BRK1 is homologous to HSPC300, an ARP2/3 complex activator, and is involved in actin nucleation while DCD1 is a regulatory subunit of the PP2A phosphatase needed for microtubule generation (Frank and Smith, 2… more
Date: August 2014
Creator: Malhotra, Divya
Partner: UNT Libraries
open access

Consumer Compulsive Buying and Hoarding in a World of Fast Fashion

Description: The purpose of this study was twofold: (1) to determine the relationships between social media, fashion interest and fast fashion involvement and whether these psychographic variables affect propensity for compulsive clothing buying and (2) to determine whether a relationship exists between compulsive buying and propensity toward hoarding. Data was collected through consumer panel from Qualtrix. Screener questions ensured that all respondents were adult females with an interest in fashion. Re… more
Date: August 2014
Creator: Higgins, Kathleen M.
Partner: UNT Libraries
open access

Factorial Validity and Measurement Invariance of the Test of Performance Strategies, Sport Anxiety Scale, and the Golf Performance Survey Across Age Groups

Description: The purpose of this study was to examine the factorial validity and measurement equivalence of the Test of Performance Strategies (TOPS; Thomas, Murphy, & Hardy, 1999); the Sport Anxiety Scale (SAS; Smith, Smoll, & Schultz, 1990); and the Golf Performance Survey (GPS; Thomas & Over, 1994) across age groups in a representative sample of amateur golfers. Based on archival data, participants comprising this study were 649 younger adult (n = 237) and older adult (n = 412) amateur golfers who playe… more
Date: August 2014
Creator: Deiters, Jay A.
Partner: UNT Libraries
open access

First-Semester General Chemistry Curriculum Comparison of Student Success on ACS Examination Questions Grouped by Topic Following an Atoms First or Traditional Instructional Approach

Description: This study uses the ACS first-term general chemistry exam to determine if one curriculum approach is more effective in increasing student success than the other based on their performance on the ACS exam. Two chemistry curriculum approaches were evaluated in this study; the traditional curriculum (TC) and the Atoms First (AF) approach. The sample population was first-semester general chemistry students at Collin College in Frisco, TX. An independent sample t-test was used to determine if there… more
Date: August 2014
Creator: Molina, Cathy D.
Partner: UNT Libraries
open access

Capital Ships, Commerce, and Coalition: British Strategy in the Mediterranean Theater, 1793

Description: In 1793, Great Britain embarked on a war against Revolutionary France to reestablish a balance of power in Europe. Traditional assessments among historians consider British war planning at the ministerial level during the First Coalition to be incompetent and haphazard. This work reassesses decision making of the leading strategists in the British Cabinet in the development of a theater in the Mediterranean by examining political, diplomatic, and military influences. William Pitt the Younger… more
Date: August 2014
Creator: Baker, William Casey
Partner: UNT Libraries
open access

Shostakovich's Use of Satire in Anti-formalist Rayok with a Focus on the Music of the Character Dt Troikin

Description: In January 1989, a much-rumored work by Dmitri Shostakovich titled Anti-Formalist Rayok received its public premiere. Rayok is a single-act satirical opera/cantata for bass soloist and mixed chorus. Each character represents a prominent Soviet political figure: Joseph Stalin, Andrei Zhdanov, and Dmitri Shepilov. The text of the libretto is either taken directly from actual speeches given by these political figures or follows their idiosyncratic style of public speaking. Rayok often falls victim… more
Date: August 2014
Creator: Grabowski, Gregory
Partner: UNT Libraries
open access

Diimine(dithiolate)platinum(ii) Chromophores: Synthesis, Spectroscopy, and Material Applications

Description: A series of 28 square-planar dithiol(diimine)platinum(II) chromophoric complexes have been synthesized, characterized, and evaluated for potential efficacy in sensitization of solid state photovoltaic devices to the near-infrared regions of the electromagnetic spectrum. The effect of molecular stacking in the solid state and self-association in solution are shown to influence spectral, electronic, and magnetic properties of the chromophores. Such properties are investigated in the pure form and… more
Date: August 2014
Creator: Browning, Charles
Partner: UNT Libraries
open access

The Influence of Indigenous Bushmen Musical Elements and Significant Compositional Traits on Niel Van Der Watt’s Song Cycle, Die Wind Dreun Soos ‘N Ghoera, ‘N Siklus Boesman-mites

Description: In Ghoera, Afrika-verse vir kinders, poet Hennie Aucamp demonstrates an affiliation with and reflection of his surroundings, such as the tribal communities he experienced as a child. This group of African children’s poems, published by Protea Boekhuis in 2011, became the source of inspiration for composer Niel van der Watt’s song cycle Die wind dreun soos ‘n ghoera, ‘n Siklus Boesman-mites. This study investigates and identifies significant compositional traits that contributed to van der Watt… more
Date: August 2014
Creator: Bester, Christiaan
Partner: UNT Libraries
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