UNT Theses and Dissertations - 21,382 Matching Results

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High-Density Polyethylene/Peanut Shell Biocomposites

Description: A recent trend in the development of renewable and biodegradable materials has led to the development of composites from renewal sources such as natural fibers. This agricultural activity generates a large amount of waste in the form of peanut shells. The motivation for this research is based on the utilization of peanut shells as a viable source for the manufacture of biocomposites. High-density polyethylene (HDPE) is a plastic largely used in the industry due to its durability, high strength … more
Date: May 2014
Creator: Londoño Ceballos, Mauricio
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Partner: UNT Libraries
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The Influence of Engagement with Graphic Narrative Text Formats on Student Attitudes Towards the School Library

Description: Comics, graphic novels, and manga differ appreciably from textual narrative formats, and materials with increasingly visual elements have found their way into progressive and student-centered library collections. But many educators and librarians still resist inclusion of graphic narratives in school libraries and devalue the reading practice of students who prefer more visual texts. Using the framework of radical change, which posits that both text conventions and reader expectations for text … more
Date: December 2014
Creator: Stephens, Wendy Steadman
Item Type: Refine your search to only Thesis or Dissertation
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Instructors Adoption of a Web-based Learning System at Rajabhat Universities in Thailand: a Study Using the Unified Theory of Acceptance and Use of Technology

Description: Web-based learning has become an important component of education. Higher education institutions in Thailand have become increasingly aware of the widespread use and effectiveness of web-based learning systems. However, the adoption of such learning systems is growing at a slow pace in Thailand. The purpose of this study was to test the Unified Theory of Acceptance and Use of Technology (UTAUT), that performance expectancy, effort expectancy, social influence, and facilitating conditions have a… more
Date: August 2014
Creator: Boonsong, Ratchadaporn
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Partner: UNT Libraries
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The Effect of Plasma on Silicon Nitride, Oxynitride and Other Metals for Enhanced Epoxy Adhesion for Packaging Applications

Description: The effects of direct plasma chemistries on carbon removal from silicon nitride (SiNx) and oxynitride (SiOxNy ) surfaces and Cu have been studied by x-photoelectron spectroscopy (XPS) and ex-situ contact angle measurements. The data indicate that O2,NH3 and He capacitively coupled plasmas are effective at removing adventitious carbon from silicon nitride (SiNx) and Silicon oxynitride (SiOxNy ) surfaces. O2plasma and He plasma treatment results in the formation of silica overlayer. In contrast,… more
Date: August 2014
Creator: Gaddam, Sneha Sen
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Determinants and Impacts of Pinterest Consumer Experiences

Description: Pinterest is one of the fastest growing social networking sites and is attracting the interest of retailers as an effective way to interact with consumers. The purpose of this study was to examine: 1) determinants and impacts of Pinterest consumer experiences. Specifically, this study examined the impacts of retailer reputation, trust, perceived ease of use, and perceived usefulness on Pinterest consumer experiences on retailer SNS. 2) To identify the impacts of Pinterest consumer experiences o… more
Date: December 2014
Creator: Vasquez, Lauren
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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“Madness” in the Media: How Can Print Journalists Better Report on Mental Illnesses?

Description: Stereo types and stigmas of individuals with mental illnesses have proved to be a major roadblock preventing these individuals from seeking help. The news media, despite having a responsibility to accurately inform the public, has played a significant role in portraying individuals with mental illness as violent, unpredictable, dangerous, and unfit to live with the rest of “normal” society. This happens through the words journalists choose to use and the information they choose in included, and… more
Date: August 2014
Creator: Cousineau, Anna Desiree
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Environmental Imagination: the Constitution and Projection of a Sustainable Ethos

Description: This dissertation provides a theoretical analysis and examination of the role of imagination in the formation of an environmental ethos. The majority of ethical theories in environmental thought largely neglect the role that imagination plays in both the relationships that humans form with their environment, and the subsequent role that imagination plays in constituting the way that those relationships are understood ethically. To explore the role of imagination in constituting and subsequently… more
Date: December 2014
Creator: Day, Philip Garrett
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Evaluating Preventative Interventions for Depression and Related Outcomes: a Meta-analysis

Description: The burden of depression requires modalities other than individual psychotherapy if we are to reduce it. Over the past two decades preventative programs for depression have been developed and refined for different populations. The six years since the last meta-analysis of preventative interventions—inclusive of all program types—have seen a number of new studies. The current study used the greater statistical power provided by these new studies to analyze moderators of, and sub-group difference… more
Date: August 2014
Creator: González, David Andrés
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Partner: UNT Libraries
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New Wine in Old Wineskins: Hobbes’s Use and Abuse of Religious Rhetoric

Description: Thomas Hobbes’s knowledge of religious doctrine, typology, and use religious rhetoric in his writings is often glossed over in an over-eager attempt to establish his preeminence as a founder of modern political theory and the social contract tradition. Such action, however is an injustice to Hobbes himself, who recognized that in order to establish a new, and arguably radical, political position founded upon reason and nominalist materialism he had to reform people’s understanding of religious … more
Date: December 2014
Creator: Higgins, Nicholas J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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"Stealing Dreams" and Other Stories

Description: The critical preface, "Learning to Break the Rules" discusses workshop rules as guidelines, as well as how and why I learned to break them. The creative portion of this thesis is made up of eight short stories: "The Many Incarnations of Blazer Chief," "Anna's Monsters," "The Pecan Tree's Daughter," "When the Seas Emptied," "The Umbrella Thief," "How to Forget," "Fracture," and "Stealing Dreams."
Date: December 2014
Creator: Matthews, Elise
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Pathways From ADHD Symptoms to Obesity in a College Population

Description: Attention deficit hyperactivity disorder (ADHD) is more recently being recognized as a lifetime disorder that continues to affect individuals into their adult lives. Recent research studies have found connections between ADHD and overweight/obesity. The current study was designed to further explore these relationships and better understand the connections between these two constructs among 340 college students. It was hypothesized that the ADHD symptoms (i.e., inattention and impulsivity) wo… more
Date: August 2014
Creator: Marcom, Leslee Johnson
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Partner: UNT Libraries
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Lean on Me: Social Support Compensation and Risk of Death in Older Adults with Type 2 Diabetes

Description: Type 2 diabetes (T2DM) has an estimated incidence of nearly 11 million US adults aged 65 years and older. Evidence suggests that the quality of the marital relationship is an important factor for diabetes related health outcomes affecting self-management and adherence (Kiecolt-Glaser & Newton, 2001). However, an individual in need may compensate for primary support that is unavailable or not optimal by looking for other sources of support, which may be important for health outcomes (Rini, et a… more
Date: August 2014
Creator: Smith, Lauren Marie
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Gamma Prime Precipitation Mechanisms and Solute Partitioning in Ni-base Alloys

Description: Nickel-base superalloys have been emerged as materials for gas turbines used for jet propulsion and electricity generation. The strength of the superalloys depends mainly from an ordered precipitates of L12 structure, so called gamma prime (γ’) dispersed within the disorder γ matrix. The Ni-base alloys investigated in this dissertation comprise both model alloy systems based on Ni-Al-Cr and Ni-Al-Co as well as the commercial alloy Rene N5. Classical nucleation and growth mechanism dominates the… more
Date: August 2014
Creator: Rojhirunsakool, Tanaporn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Assessment of Post-earthquake Building Damage Using High-resolution Satellite Images and LiDAR Data - a Case Study From Port-au-prince, Haiti

Description: When an earthquake happens, one of the most important tasks of disaster managers is to conduct damage assessment; this is mostly done from remotely sensed data. This study presents a new method for building detection and damage assessment using high-resolution satellite images and LiDAR data from Port-au-Prince, Haiti. A graph-cut method is used for building detection due to its advantages compared to traditional methods such as the Hough transform. Results of two methods are compared to unders… more
Date: August 2014
Creator: Koohikamali, Mehrdad
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Workplace Supportiveness, Family Obligations, and Advancement for Caucasian Male Student Affairs’ Middle Managers

Description: In higher education, the field of student affairs, as demonstrated in previous research, suffers from high turnover, and often, the choice to leave the student affairs field seems to coincide with starting a family and simultaneously taking care of elder family members. Previous research has demonstrated that care-giving commitments hinder women in the advancement of their career and given the changing culture of shared care-giving responsibilities, the previous findings may now be true for men… more
Date: December 2014
Creator: Smethers, Misty L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Hermitian Jacobi Forms and Congruences

Description: In this thesis, we introduce a new space of Hermitian Jacobi forms, and we determine its structure. As an application, we study heat cycles of Hermitian Jacobi forms, and we establish a criterion for the existence of U(p) congruences of Hermitian Jacobi forms. We demonstrate that criterion with some explicit examples. Finally, in the appendix we give tables of Fourier series coefficients of several Hermitian Jacobi forms.
Date: August 2014
Creator: Senadheera, Jayantha
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Networking and Decentralized Control in Layered Networks: a Theoretical Study and Test-bed Development

Description: Layered structures are commonly used in communication systems, but their roles in decentralized control are not understood well. In the first part of this thesis, a theoretical study of consensus (a typical decentralized control task) in layered structures is conducted. The unique graph topology approach permits explicit characterization of consensus performance based on simple graphical characteristics of MLMG structures. In the second part of this thesis, a generic LEGO test-bed to mimic mult… more
Date: December 2014
Creator: Sheth, Vardhman Jayeshkumar
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Partner: UNT Libraries
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The Impact of Social Learning and Social Norms on Auditor Choice

Description: The purpose of this dissertation is to explore the influences of industry dynamic factors (e.g., peer selections) on a client’s subsequent decision to select the type of auditor (e.g., Big N versus non-Big N), following auditor turnover. More specifically, drawing on social norms and social learning theories, I develop testable implications and investigate whether and how industry dynamics have an incremental power in explaining auditor choice beyond traditional firm-specific variables document… more
Date: August 2014
Creator: Li, Xudong
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Partner: UNT Libraries
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Marianismo and Community College Persistence: a Secondary Data Analysis of the Educational Longitudinal Study 2002

Description: Hispanics represent the greatest U.S. population growth, yet Hispanic women are the least educated of all U.S. ethnic female groups and reflect the lowest college enrollment as a percent of their total population. Since nearly half of Hispanics enrolled in college are served by community colleges, this research sought to understand if marianismo, i.e., the cultural expectations that Hispanic women females must focus on caretaking and mothering while reflecting passivity, duty and honor, and se… more
Date: August 2014
Creator: LaCoste, Linda
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Partner: UNT Libraries
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Child-Centered Play Therapy Parent Services: a Q-Methodological Investigation

Description: Child-centered play therapy (CCPT) is an empirically supported and developmentally appropriate counseling intervention for young children. Despite the clinical effectiveness of CCPT with children, no known study has been conducted in which parents were surveyed or interviewed regarding the services they have received as a part of their children’s participation in CCPT. Therefore, this study was designed to gain a better understanding of parents’ reported needs and expectations in CCPT. This … more
Date: December 2014
Creator: Lee, Kasie R.
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Partner: UNT Libraries
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The Relationship Between Registration Time and Major Status and Academic Performance and Retention of First-time-in-college Undergraduate Students at a Four-year, Public University

Description: This quantitative study utilized secondary data from one large four-year, state university in the southwestern US. The relationship between registration time and academic performance was examined as well as the relationship between registration time and retention of first-time-in-college (FTIC) undergraduate students during their first semester of enrollment at the university. The differences between decided and undecided students were tested regarding students’ academic performance and retent… more
Date: August 2014
Creator: Smith, Marian Ford
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Youth-led Environmental Awareness: Initiatives Towards a Jain Faith Community Empowerment

Description: This project employs participatory action research methods in efforts to create a community specific environmental curriculum for the high school age youth at the only Jain faith community in the North Texas region. Aligned with the community’s goals, the youth led in deciding, creating, and carrying out initiatives that were aimed at increasing the level of awareness about environmental issues amongst community members. The research done by the youth aimed at looking at environmental issues th… more
Date: August 2014
Creator: Otterbine, Joseph R.
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Partner: UNT Libraries
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The Evaluation of Task Preference on Reinforcer Efficacy

Description: Stimulus preference assessments have determined high and low preferred items that increase the rate of frequency of responding for various skills. Within applied settings, high preferred items may not attain the same reinforcing value across tasks which might decrease responding. The preference of the task might have an effect on reinforcer efficacy that is being presented. The purpose of the current study is to evaluate changes in reinforcer efficacy as a function of preference for the task. T… more
Date: December 2014
Creator: Lowery, Wesley J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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