UNT Theses and Dissertations - 159 Matching Results

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Academic and Social Functioning of College Students with Attention-Deficit/Hyperactivity Disorder (ADHD)

Description: Attention-deficit/hyperactivity disorder (ADHD) is a complicated psychiatric disorder that is typically first diagnosed in childhood and associated with negative outcomes in adulthood such as poor academic performance and difficulties with social relationships. ADHD can be difficult to accurately diagnose in adulthood, given the absence of clear, agreed upon ADHD symptomology in adults. In the current study, two raters used psychometrically sound instruments and diagnostically valid assessment … more
Date: December 2017
Creator: Calmenson, Nina
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Analysis of Heat Transfer Enhancement in Channel Flow through Flow-Induced Vibration

Description: In this research, an elastic cylinder that utilized vortex-induced vibration (VIV) was applied to improve convective heat transfer rates by disrupting the thermal boundary layer. Rigid and elastic cylinders were placed across a fluid channel. Vortex shedding around the cylinder led to the periodic vibration of the cylinder. As a result, the flow-structure interaction (FSI) increased the disruption of the thermal boundary layer, and therefore, improved the mixing process at the boundary. This … more
Date: December 2017
Creator: Kota, Siva Kumar k
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Arduino Based Hybrid MPPT Controller for Wind and Solar

Description: Renewable power systems are becoming more affordable and provide better options than fossil-fuel generation, for not only the environment, but a benefit of a reduced cost of operation. Methods to optimize charging batteries from renewable technologies is an important subject for off-grid and micro-grids, and is becoming more relevant for larger installations. Overcharging or undercharging the battery can result in failure and reduction of battery life. The Arduino hybrid MPPT controller takes t… more
Date: December 2017
Creator: Assaad, Michael
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Artscapes: Community Perceptions of City Beautification through Murals in Denton, Texas

Description: Keep Denton Beautiful (KDB) is inspired by Keep America Beautiful's model of community engagement to create a clean, beautiful, and vibrant city. The community mural initiative, Artscapes, aims to enliven public spaces, abate graffiti, and inspire community members to keep Denton, Texas, clean and beautiful. The goals of this research project are to understand the impact of Artscapes initiative, community perceptions of public art, and find ways KDB can better align future mural projects with t… more
Date: December 2017
Creator: Robertson, Lindsey
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Civil Liberties and National Unity: Reaction to the Sedition Act in the Southern States, 1798

Description: The traditional narrative of political party development in the United States of America during the latter half of the 1790s ascribes the decline in popularity of the Federalist Party in the Election of 1800 to that party's passage of controversial legislation, specifically the Sedition Act of 1798, prior to the election. Between the passage of the Sedition Act and the Election of 1800, however, the midterm elections of 1798-1799 transpired and resulted in a significant increase in Federalist p… more
Date: December 2017
Creator: Robinson, Sarah Elizabeth
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Considerations for Global Development and Impact using Haiti as a Case Study

Description: As the world becomes more connected, issues surrounding sustainable development are coming to the fore of global discussions. This is exemplified in strategies such as the United Nation's Sustainable Development Goals (SDGs), released in 2015, which created a framework for global development that defines specific goals for issues like poverty, climate change, and social justice. To complement the analysis that went into defining the SDGs, capital allocations around the world are becoming more i… more
Date: December 2017
Creator: Clerie, Isabelle
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Corbicula fluminea Invasion as a Secondary Effect of Hydrilla verticillata Management via Triploid Grass Carp (Ctenopharyngodon idella)

Description: A study of Asian clam (Corbicula fluminea Müller) colonization in relation to changes in aquatic vegetation community as a result of management of Hydrilla verticillata (L. f.) Royle with grass carp was conducted at the Lewisville Aquatic Ecosystem Research Facility (LAERF), Lewisville, TX, from April 2015 through October 2016. Percent vegetation cover, C. fluminea abundance and water quality metrics (pH, turbidity, conductivity, DO, calcium, chlorophyll a) from 16 experimental subjects were an… more
Date: December 2017
Creator: Holbrook, David Lee
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Effects of HALSs and Nano-ZnO Worked as UV Stabilizers of Polypropylene

Description: This work reports the outdoor weathering performance of ultraviolet (UV)-stabilized polypropylene (PP) products (using PP resins from Encore Wire). Different hindered amine light stabilizers (HALSs) and nano-ZnO were used to stabilize PP-film-based formulations that were exposed under UV light for 6 weeks simulating for in harsh outdoor weather of Dallas, Texas, USA in 2016. Characterization of the exposed PP film products was done in terms of mechanical and friction spectroscopic properties. T… more
Date: December 2017
Creator: Lu, Xinyao
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Estimating Thermal Conductivity and Volumetric Specific Heat of a Functionally Graded Material using Photothermal Radiometry

Description: Functionally graded materials (FGMs) are inhomogeneous materials in which the material properties vary with respect to space. Research has been done by scientific community in developing techniques like photothermal radiometry (PTR) to measure the thermal conductivity and volumetric heat capacity of FGMs. One of the problems involved in the technique is to solve the inverse problem, i.e., estimating the thermal properties after the frequency scan has been obtained. The present work involves fin… more
Date: December 2017
Creator: Koppanooru, Sampat Kumar Reddy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Ethnic and Sexual Minority Differences in the Prediction of Disordered Eating and Exercise Behaviors in College Men

Description: Despite growing evidence of their prevalence, clinical and subclinical disordered eating behaviors among men continue to be understudied phenomena. When compared to females, predictors of male disordered eating vary across ethnic groups, suggesting cultural influences on disordered eating. Moreover, gay and bisexual men experience pronounced levels of body dissatisfaction, sensitivity to societal body image standards, and subsequent disordered eating when compared to straight men and gay women.… more
Date: December 2017
Creator: Pereira, Andrew
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Evaluation of a Behavior Skills Package to Teach Caregivers to Manage Disruptive Behavior during Medical and Dental Appointments

Description: Adults with developmental disabilities that live in large residential settings experience complications due to problem behavior when attending routine medical/dental appointments. This may result in sedation for clients for even the most routine medical/dental appointments. The purpose of this project was to develop a comprehensive staff training program that incorporated best practices to teach direct-support professionals behavior management techniques and best practices for transporting clie… more
Date: December 2017
Creator: Kinser, Joshua Andrew
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Ex-Offender Reentry: An Analysis of Current Policies and Programs

Description: Recidivism rates among ex-offender populations have consistently remained high. With over 600,000 ex-offenders being released from prison each year, reducing the rate of recidivism among the ex-offender class has become a highly debated issue. Ensuring ex-offenders successfully reintegrate into the community post-incarceration may help to reduce recidivism rates. Through a qualitative thematic analysis, this study examined various policies and program that may impact recidivism rates among ex-o… more
Date: December 2017
Creator: Laird, Kaleigh B.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Facets of Positive Affect and Risk for Bipolar Disorder: Role of the Behavioral Activation System

Description: Bipolar disorder is characterized by disruptions in mood and affect that occur not only during mood episodes, but during euthymic periods as well. At the same time, sensitivity of the behavioral activation system (BAS) has been implicated in the disorder and is a risk marker for it. Less clear is the relationship between BAS sensitivity and positive affect, particularly lower level facets of positive affect. The aim of the present study was to examine the relationship between positive affect… more
Date: December 2017
Creator: Dornbach-Bender, Allison
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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"Failure to Yield": Essays

Description: Failure to Yield is a collection of creative nonfiction that explores themes of presence and emotional connection and expression. The seven essays, which include three flash essays, explore the themes by reflecting on such topics as marriage, parent-child relationships and addiction. The collection is woven together by the author's relationships with her parents and children and by her experiences growing up in a small town in Iowa.
Date: December 2017
Creator: Siegfried, Cary Ann
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Furyous Female Just-Warriors of Post-Apocalypse and Dystopia

Description: The intention of this thesis is to identify and analyze the precise shift from an exploitative archetype to an empowered representation of women warriors, to identify the arena in which male and female characters are given equal agency in the context of war, and finally explore the key characteristics that make up an empowered female hero. This thesis also addresses the sociocultural nature of the warrior woman archetype as it pertains to the current role of women in the military. The films an… more
Date: December 2017
Creator: Lynch, Shaylynn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Generation of Recombinant Zea mays Spastin and Katanin Proteins for In Vitro Analysis

Description: Plant microtubules play essential roles in cell processes such as cell division, cell elongation, and organelle organization. Microtubules are arranged in highly dynamic and ordered arrays, but unlike animal cells, plant cells lack centrosomes. Therefore, microtubule nucleation and organization are governed by microtubule-associated proteins, including a microtubule-severing protein, katanin. Mutant analysis and in vitro characterization has shown that the highly conserved katanin is needed fo… more
Date: December 2017
Creator: Alodailah, Sattam Sonitan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Historical Memory and Ethics in Spanish Narrative

Description: This study traces the current status of Spanish ethics as seen through the optics of historical memory. Starting from the Spanish Civil War in 1936, the thesis relates contemporary themes to their proposed origin throughout three additional distinctive eras of the 20th and 21st century in Spain: 1982-1996 (Socialist Spain), 1997-2010 (Post-modern Spain), and 2011-present (current Spain). Spanish narratives ranging from Los Abel by Matute, La magnitud de la tragedia by Monzó, "Fidelidad" of Ha d… more
Date: December 2017
Creator: Wilson, Rachelle
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Homologs of Mammalian Lysosomal Lipase in Arabidopsis and Their Roles in Lipid Droplet Dynamics

Description: Lipid droplets (LDs) are organelles with many functions in cells and numerous protein interactors facilitate their biogenesis, maintenance, and turnover. The mammalian lipase responsible for LD turnover during lipophagy, LipA, has two candidate homologs in Arabidopsis: MPL1 and LIP1. One or both of these plant homologs may function in a similar manner to mammalian LipA, providing an LD breakdown pathway. To test this hypothesis, wild type (WT) Arabidopsis plants, MPL1 over-expressing (OE) muta… more
Date: December 2017
Creator: McClinchie, Elizabeth A
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Human-Machine Interface Using Facial Gesture Recognition

Description: This Master thesis proposes a human-computer interface for individual with limited hand movements that incorporate the use of facial gesture as a means of communication. The system recognizes faces and extracts facial gestures to map them into Morse code that would be translated in English in real time. The system is implemented on a MACBOOK computer using Python software, OpenCV library, and Dlib library. The system is tested by 6 students. Five of the testers were not familiar with Morse code… more
Date: December 2017
Creator: Toure, Zikra
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Impact of True Fit® Technology on Millennial Consumer Confidence and Satisfaction in their Online Clothing Purchase

Description: This study examines the use of True Fit® technology by millennial consumers and its impact on consumer confidence and satisfaction with respect to online sizing. In the apparel industry, there is a lack of size standards among retailers, and as a result consumers will encounter frequent size variations in their clothing size. Difference sizing technology has been developed to address the sizing issue. One is True Fit® which unlike other sizing technologies, uses mathematical algorithms to compi… more
Date: December 2017
Creator: Parr, Jacqueline Nicole
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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It's Going to be Different, but It's Going to be Okay: Caregiver Perspectives on Autism, Culture and Accessing Care

Description: Through ethnography influenced by public health and anthropological theory, I explored the cultural perceptions of autism among eight caregivers whose children received services from a local Dallas-Fort Worth autism treatment organization. Participant observations and semi-structured interviews with caregivers and program employees provided a rich and nuanced view into the state of care currently available in the DFW area while also highlighting areas for improvement. This research will be used… more
Date: December 2017
Creator: Otwori, Beverly N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Listening in the Living Room: The Pursuit of Authentic Spaces and Sounds in Dallas/Fort Worth (DFW) Do-It-Yourself (DIY) Punk Rock

Description: In the Dallas/Fort Worth (DFW) do-it-yourself (DIY) punk scene, participants attempt to adhere to notions of authenticity that dictate whether a band, record label, performance venue, or individual are in compliance with punk philosophy. These guiding principles champion individual expression, contributions to one's community (scene), independence from the mainstream music industry and consumerism, and the celebration of amateurism and the idea that everyone should "do it yourself." While each … more
Date: December 2017
Creator: Peters, Sean (Sean Louis)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Maximal Proposition, Environmental Melodrama, and the Rhetoric of Local Movements: A Study of The Anti-Fracking Movement in Denton, Texas

Description: The environmental problems associated with the boom in hydraulic fracturing or "fracking," such as anthropogenic earthquakes and groundwater contamination, have motivated some citizens living in affected areas such as Denton, Texas to form movements with the goal of imposing greater regulation on the industry. As responses to an environmental threat that is localized and yet mobile, these anti-fracking movements must construct rhetorical appeals with complicated relationships to place. In this … more
Date: December 2017
Creator: Hensley, Colton Dwayne
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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