UNT Theses and Dissertations - 422 Matching Results

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Health Reform Implementation Analysis: A Guide to Policy Development for Geriatric Care Planning, Integration and Evaluation

Description: In the context of health care delivery for senior citizens, this research utilizes three studies that examine the development and implementation of health policy and the factors that can directly or indirectly impact the effective delivery of health services to senior citizens. It utilizes three essays employing mixed methods (qualitative and quantitative) methods including semi structured interviews, multiple regression and partial least squares structural equation modelling to examine the ext… more
Date: August 2020
Creator: Abah, Theresa
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Stimulus Control Effects of Changes in Schedules of Reinforcement

Description: Sometimes, changes in consequences are accompanied by a clear stimulus change explicitly arranged by the experimenter. Other times when new consequences are in effect, there is little or no accompanying stimulus change explicitly arranged by the experimenter. These differences can be seen in the laboratory as multiple (signaled) schedules and mixed (unsignaled) schedules. The current study used college students and a single-subject design to examine the effects of introducing signaled and unsig… more
Date: August 2020
Creator: Abdel-Jalil, Awab
Item Type: Refine your search to only Thesis or Dissertation
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Impact of Anti-S2 Peptides on a Variety of Muscle Myosin S2 Isoforms and Hypertrophic Cardiomyopathy Mutants Revealed by Fluorescence Resonance Energy Transfer and Gravitational Force Spectroscopy

Description: Myosin subfragment-2 (S2) is an intrinsically unstable coiled coil. This dissertation tests if the mechanical stability of myosin S2 would influence the availability of myosin S1 heads to actin thin filaments. The elevated instability in myosin S2 coiled coil could be one of the causes for hypercontractility in Familial Hypertrophic Cardiomyopathy (FHC). As hypothesized FHC mutations, namely E924K and E930del, in myosin S2 displayed an unstable myosin S2 coiled coil compared to wild type as mea… more
Date: August 2020
Creator: Aboonasrshiraz, Negar
Item Type: Refine your search to only Thesis or Dissertation
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Adolescent Self-Theories of Singing Ability within the Choral Hierarchy

Description: The purpose of this study was to explore adolescent self-views of singing ability through both implicit theories and self-concept meaning systems. A secondary purpose of this study was to examine these self-views specifically in the context of a choral hierarchy. Using a researcher-designed survey instrument, I gathered data from middle- and high-school students currently enrolled in a choir program organized in a hierarchical structure. I analyzed descriptive statistics of survey responses to … more
Date: May 2020
Creator: Adams, Kari
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Exploring the Impact of Decentralization of Decision Making and Complexity on Supply Chain Resilience

Description: The purpose of this three-essay dissertation is to synthesize and extend the effects of decentralization in decision-making and supply chain complexity in the context of supply chain resilience (SCRES).First essay contributes to theory and practice by expanding resilience thinking into including supply chain orientation and organizational structure and their implications and also responds to prior research arguing for the importance of identifying organizational factors that improve supply chai… more
Date: August 2020
Creator: Adana, Saban
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Multifactorial Determinants of Change in Mental Disorder and Happiness among Older Americans

Description: Mental health is an intrinsic capability that constitute an essential component of healthy aging. Mental health is constituted by positive constructs such as happiness and negative constructs (mental disorders) such as depression. As people grow older, they become more prone to developing mental disorders which are linked to poorer quality of life, increased disability, increased utilization and cost of health services, and higher rates of suicide. This dissertation involved three studies that … more
Date: August 2020
Creator: Adaralegbe, Adeleye Ayinde
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Role of Eigenvalues of Parity Check Matrix in Low-Density Parity Check Codes

Description: The new developments in coding theory research have revolutionized the application of coding to practical systems. Low-Density Parity Check (LDPC) codes form a class of Shannon limit approaching codes opted for digital communication systems that require high reliability. This thesis investigates the underlying relationship between the spectral properties of the parity check matrix and LDPC decoding convergence. The bit error rate of an LDPC code is plotted for the parity check matrix that has d… more
Date: August 2020
Creator: Adhikari, Dikshya
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Identification, Characterization and Engineering of UDP-Glucuronosyltransferases for Synthesis of Flavonoid Glucuronides

Description: Flavonoids are polyphenolics compounds that constitute a major group of plant specialized metabolites, biosynthesized via the phenylpropanoid/polymalonate pathways. The resulting specialized metabolites can be due to decoration of flavonoid compounds with sugars, usually glucose, by the action of regiospecific UDP-glycosyltransferase (UGT) enzymes. In some cases, glycosylation can involve enzymatic attachment of other sugar moieties, such as glucuronic acid, galactose, rhamnose or arabinose. Th… more
Date: December 2020
Creator: Adiji, Olubu Adeoye
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Traffic-Generated Air Pollution-Exposure Mediated Expression of Factors Associated with Progression of Multiple Sclerosis in a Female Polipoprotein E Knockout Mouse Model

Description: Environmental air pollution is one risk factor associated with the onset and progression of multiple sclerosis (MS). In this project, we investigated the effects of ubiquitous traffic-generated pollutants, namely a mixture of gasoline and diesel vehicle exhaust (MVE), on signaling pathways associated with the pathophysiology of MS in the central nervous system (CNS) of either ovary intact (ov+) or ovariectomized (ov-) female Apolipoprotein (Apo) E-/-. Specifically, we investigated whether a sub… more
Date: December 2020
Creator: Adivi, Anna
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Military Religio: Caesar's Religiosity Vindicated by Warfare

Description: Gaius Julius Caesar remains one of the most studied characters of antiquity. His personality, political career, and military campaigns have garnered numerous scholarly treatments, as have his alleged aspirations to monarchy and divinity. However, comparatively little detailed work has been done to examine his own personal religiosity and even less attention has been paid to his religion in the context of his military conquests. I argue that Caesar has wrongly been deemed irreligious or skeptica… more
Date: August 2020
Creator: Adkins, Austin L
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Analysis of the Cytochrome P450 and UDP-Glucuronosyltransferase Families and Vitamin D3- Supplementation in Anoxia Survival in Caenorhabditis elegans

Description: Alteration in diet and knockdown of detoxification genes impacts the response of C. elegans to oxygen deprivation stress. I hypothesized that feeding worms a vitamin D3-supplementation diet would result in differential oxygen deprivation stress response. We used a combination of wet lab and transcriptomics approach to investigate the effect of a vitamin-D3 supplemented diet on the global gene expression changes and the anoxia response phenotype of C. elegans (Chapter 2). C. elegans genome consi… more
Date: December 2020
Creator: Agarwal, Sujata
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Adaptive Slot Location in the Design of Slotted Microstrip Multi-Frequency Antenna for Radionavigation and Radiolocation Applications

Description: In light of incidents and concerns regarding the vulnerability of the global positioning system (GPS), the main purpose of the thesis is to look at alternative systems for radio guidance and to put up a serious study on such alternatives with receive and transmit antenna. There is also the need to design such antennas with multiple frequencies to offer robustness in the unlikely event that such adversarial attacks on the GPS happen. The basis on which such alternative antennas are designed is a… more
Date: August 2020
Creator: Agbor, Ikechukwu Wilson
Item Type: Refine your search to only Thesis or Dissertation
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Intersecting Identities and Conflict as Moderators of the Relationship Between Discrimination and Mental Health in Emerging Adulthood

Description: Individuals with a minority sexual identity, such as lesbians, gay men, and bisexuals (LGB) face increased risk for stigmatization surrounding their sexual identities and subsequent psychological distress. Sexual minorities of color (SMOC) face the same difficulties faced by White sexual minorities, often compounded with stigma and discrimination linked to their racial/ethnic identities. However, because SMOC remain underrepresented in research on LGB issues, empirically-driven knowledge abou… more
Date: August 2020
Creator: Akibar, Alvin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Resurrection Attempts: Essays

Description: This dissertation is composed of a critical preface, "Reconciling Art and Account in the Creative Essay," and the essay collection Resurrection Attempts: Essays. The preface situates the following essay collection within the genre of contemporary creative nonfiction. Specifically, it argues that genre-bending or genre hybridity are inherent and unavoidable features of creative nonfiction writing and should be celebrated, rather than denied or lamented. It points to other writers who deliberatel… more
Date: May 2020
Creator: Al-Qasem, Ruby
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Novel Approaches for Enhancing Resistance to Fusarium graminearum in Arabidopsis and Wheat by Targeting Defense and Pathogenicity Factors

Description: Fusarium head blight (FHB) is an important disease of small grain cereals including wheat that affects grain quality and yield. The fungus Fusarium graminearum (Fg) is the major agent of this disease. Lack of natural resistance has limited ability to control wheat losses to this disease. Developing new approaches is critical for increasing host plant resistance to this fungus. This work has identified four processes that can be targeted for enhancing host plant resistance to FHB. The first i… more
Date: May 2020
Creator: Alam, Syeda Tamanna
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Partner: UNT Libraries
open access

Traffic Forecasting Applications Using Crowdsourced Traffic Reports and Deep Learning

Description: Intelligent transportation systems (ITS) are essential tools for traffic planning, analysis, and forecasting that can utilize the huge amount of traffic data available nowadays. In this work, we aggregated detailed traffic flow sensor data, Waze reports, OpenStreetMap (OSM) features, and weather data, from California Bay Area for 6 months. Using that data, we studied three novel ITS applications using convolutional neural networks (CNNs) and recurrent neural networks (RNNs). The first experimen… more
Date: May 2020
Creator: Alammari, Ali
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Partner: UNT Libraries
open access

Transforming Art Education in Saudi Arabia: Inclusion of Social Issues in Art Education

Description: The purpose of this study was to describe in-service Saudi Arabian art education teachers' (a) philosophies of education before and after an issues-based art education (IBAE) workshop, (b) perceptions of the IBAE workshop and its products, (c) perception of the importance of IBAE approach, reasons, topics, and challenges after the workshop, and (d) perception of IBAE within the Saudi Arabian context. A mixed-methods approach was followed. The qualitative portion of the study utilized a post-wor… more
Date: August 2020
Creator: Albakri, Ghadah Shukri H. Shukri
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Achievement Motivation Theory as a Model for Explaining College Athletes' Grit

Description: This study examined the direct and indirect associations of the perceived coach-created motivational climate, athletes' implicit theory, and athletes' achievement goal orientation in relation to their levels of grit. Five hundred twenty-three Division I and II collegiate student-athletes (male = 246, female = 277) from five institutions across the south-central and southeast areas of the United States completed self-report measures assessing the previously described constructs. The measurement … more
Date: August 2020
Creator: Albert, Erin
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Role of 5.8S rRNA in Zebrafish and Human Blood Coagulation

Description: Hemolytic disorders are characterized by hemolysis and are prone to thrombosis. Previously, it has been shown that the RNA released from damaged blood cells activates clotting. However, the nature of RNA released from hemolysis is still elusive. We found that after hemolysis, the red blood cells from both zebrafish and humans release 5.8S rRNA. This RNA activated coagulation in zebrafish and human plasmas. Using both natural and synthetic 5.8S rRNA and its synthetic truncated fragments, we foun… more
Date: December 2020
Creator: Alharbi, Abdulmajeed Haya M.
Item Type: Refine your search to only Thesis or Dissertation
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Immigrant Children's Perspectives of Books that Share Stories of Early School Experiences

Description: Guided by the importance of children's voices and perspectives, this study aims at finding the immigrant children's perspectives of books that share stories of early school experiences of immigrant children. Before working with children, there was a careful selection process and analyzing of the three picture books chosen for the study using critical content analysis and childism lenses. The participants are three Arab immigrant children at the age of 6 who are bilingual and attended school in … more
Date: December 2020
Creator: Alharbi, Sara Abdullah
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open access

A Genetic Approach to Identify Proteins that Interact with Eukaryotic Microtubule Severing Proteins via a Yeast Two Hybrid System

Description: Microtubules (MT) are regulated by multiple categories of proteins, including proteins responsible for severing MTs that are therefore called MT-severing proteins. Studies of katanin, spastin, and fidgetin in animal systems have clarified that these proteins are MT-severing. However, studies in plants have been limited to katanin p60, and little is known about spastin or fidgetin and their function in plants. I looked at plant genomes to identify MT-severing protein homologues to clarify which … more
Date: May 2020
Creator: Alhassan, Hassan H
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Interorganizational Collaboration in Implementing Urban Greening Policies in Saudi Arabia: An Institutional Collective Action Framework

Description: This dissertation aims to examine the relationship between interorganizational collaboration and the implementation of urban greening policy. Specifically, it discusses bonding and bridging relationships that explain a successful interorganizational collaboration, and to what extent these factors explain the perception of success in the implementation of public programs. The effects of risks of collaboration on the implementation of urban greening policy are also studied. To frame the analysis,… more
Date: May 2020
Creator: Alkhurayyif, Mohammed A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Third-Party Perception: Implications for Governance and Communication of Health Risks during the Umrah in Saudi Arabia

Description: The current study projects the third-person perception phenomenon into the area of emergency management, specifically regarding risk communication in the context of religious gatherings. This study utilized the Umrah religious gathering in Makkah, Saudi Arabia, during summer 2019 as a case study (N = 257). This study aimed to investigate whether pilgrims perceive there was a greater effect of health information on others than on themselves. Survey results were translated and then coded and anal… more
Date: May 2020
Creator: Alkhurayyif, Saad A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Thermal Transport Modeling in Three-Dimensional Pillared-Graphene Structures for Efficient Heat Removal

Description: Pillared-graphene structure (PGS) is a novel three-dimensional structure consists of parallel graphene sheets that are separated by carbon nanotube (CNT) pillars that is proposed for efficient thermal management of electronics. For microscale simulations, finite element analyses were carried out by imposing a heat flux on several PGS configurations using a Gaussian pulse. The temperature gradient and distribution in the structures was evaluated to determine the optimum design for heat transfer.… more
Date: December 2020
Creator: Almahmoud, Khaled Hasan Musa
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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