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Evaluation of a Behavior Skills Package to Teach Caregivers to Manage Disruptive Behavior during Medical and Dental Appointments
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 clients to and from routine medical/dental appointments. 4 direct-support professionals at a large residential care facility participated in this project. Multiple probes were conducted utilizing standard role-play exercises to evaluate caregiver acquisition of 16 specific skills related to client information, best practices for client transport, and behavior management. The results indicated that behavior skills training (BST) resulted in caregiver acquisition of all 16 skills during role-play exercises.
Date:
December 2017
Creator:
Kinser, Joshua Andrew
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
It's Going to be Different, but It's Going to be Okay: Caregiver Perspectives on Autism, Culture and Accessing Care
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 to not only identify the barriers faced by North Texas Families while seeking out care,but also the strategies the organization uses when connecting with families from different backgrounds.
Date:
December 2017
Creator:
Otwori, Beverly N.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Ex-Offender Reentry: An Analysis of Current Policies and Programs
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-offenders. The policies and programs reviewed in this study were categorized among six main themes which were identified in prior literature as the most crucial elements needed for successful reintegration. The findings indicate that while many policy changes have been made to positively impact ex-offender reintegration by allowing initial access to services post-release from prison, more should be done to ensure ex-offenders actually receive needed services.
Date:
December 2017
Creator:
Laird, Kaleigh B.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Corbicula fluminea Invasion as a Secondary Effect of Hydrilla verticillata Management via Triploid Grass Carp (Ctenopharyngodon idella)
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 analyzed. Treatments included four replicated grass carp stocking densities; 1-control with no fish stocked (n = 4), 2-low density of 40-43 fish per vegetated ha (n = 4), 3-medium density of 72-81 fish per vegetated ha (n = 4) and 4-high density of 110-129 fish per vegetated ha (n = 4). Data analysis showed statistical significance in the relation of C. fluminea abundance to percent vegetation cover (multiple linear regression, r2 = 0.820), grass carp stocking densities (two-way analysis of variance, p = <0.001) and chlorophyll a (multiple linear regression, r2 = 0.339). Findings of this research indicate the possibility that management of hydrilla had enabled establishment of secondary invasive species.
Date:
December 2017
Creator:
Holbrook, David Lee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Arduino Based Hybrid MPPT Controller for Wind and Solar
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 the advantage of solar and wind energy sources by controlling two systems simultaneously. The ability to manage two systems with one controller is better for an overall production of energy, cost, and manageability, at a minor expense of efficiency. The hybrid MPPT uses two synchronous buck DC-DC converters to control both wind and solar. The hybrid MPPT performed at a maximum of 93.6% efficiency, while the individual controller operated at a maximum 97.1% efficiency when working on the bench test. When designing the controller to manage power production from a larger generator, the inductor size was too large due to the frequency provided by the Arduino. A larger inductor means less allowable current to flow before the inductor becomes over saturated, reducing the efficiency of the controller. Utilizing …
Date:
December 2017
Creator:
Assaad, Michael
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
When to Say It: Establishing a Verbal Cue
Dog trainers sometimes teach verbal cues by saying the cue as the dog is performing the desired behavior. However, there is disagreement about when to say the cue. In this study, a pet dog was trained to go to three different apparatus, the cue for each of which was given at a different time, in a multi-element design. The cue "hoop" was given just as the dog began to move to the hoop apparatus. The cue "carrier" was given as the dog was stepping into the carrier apparatus. The cue "platform" was given after the dog was sitting on the platform apparatus. To test if the dog had learned the cues, the trainer had the dog sit and gave the cue. During testing, if only the correct apparatus was present, the dog responded to all three cues. However, when all three apparatus were present, the dog only responded correctly to the "hoop" cue. This suggests that giving the cue just as the learner is beginning to perform the desired behavior is the most effective teaching method.
Date:
December 2017
Creator:
Rulla, Emily
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Musical Priming and Operant Selection
Language is a cultural construct, and the relationship between words is taught. Priming research has long investigated the relationship between related and unrelated words. Similar research has been seen in music relationships, but most of these investigate harmonic relations despite the melodic relationship being the one listeners are mostly likely to describe. Further, these studies typically measure existing relationships and do not attempt to teach a new relationship, nothing that most adults are experienced musical listeners. This study seeks to establish a new melodic relationship (the enigmatic Scale) in addition to a familiar one (the major Scale) while measuring response time to the musical sequences. A baseline was conducted in which participants listened to a musical sequence and selected via response box if the final note is consonant (major Scale) or dissonant (enigmatic Scale). Following baseline a training section occurred in which participants heard sequences ranging from 2-7 notes and were provided feedback for correct and incorrect responses. Following completion of the training participants completed a post-test identical to baseline. Behavioral results are discussed in relation to Palmer's (2009) concept of the repertoire.
Date:
December 2017
Creator:
Vail, Kimberly Gail
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Shear and Bending Strength of Cold-Formed Steel Solid Wall Panels Using Corrugated Steel Sheets for Mobile Shelters
The objective of this thesis is to determine if the single sided resistance spot weld (RSW) can be used as a feasible connection method for cold formed steel (CFS) shear walls subject to lateral force of either seismic or wind loads on mobile shelters. The research consisted of three phases which include: a design as a 3D BIM model, connection tests of the resistance spot weld, and full-scale testing of the designed solid wall panels. The shear wall testing was conducted on specimens with both resistance spot weld and self-drilling screws and the results from tests gave a direct comparison of these connections when the solid wall panel was subjected to in-plane shear forces. The full-scale tests also included 4-point bending tests which was designed to investigate the wall panel's resistance to the lateral loads applied perpendicularly to the surface. The research discovered that the singled sided resistance spot weld achieved similar performance as the self-drilling screws in the applications of CFS wall panels for mobile shelters. The proposed single sided resistance spot weld has advantages of low cost, no added weight, fast fabrication, and it is a feasible connection method for CFS wall panels.
Date:
December 2017
Creator:
Derrick, Nathan Lynn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Slogan Word Count and the Effects on Consumer Behavior
Slogans can be attributed as a way in which to communicate a brand's message to its key consumer. An effectively established brand amongst targeted consumers can in turn generate profitability and ever further promote the brand. The purpose of this paper was to investigate the effectiveness of advertisements that employ vague or precise cosmetic product brand slogans among both male and female consumers. Ultimately, the end goal of marketing is to make a sale. Additionally, the purpose of this study was to determine whether or not the length of a slogan is an influential factor on the participant's motivation to purchase a cosmetic or skincare product. Data was collected through the use of survey in an online social media format, in order to test the effectiveness of different lengths of slogans for slogan recall, brand recall, brand awareness and purchase intention. Prior research and hypotheses were used to predict the concept that shorter more concise or precise slogans in this study would heighten the levels of all measured variables in the study, slogan recall, brand recall, brand awareness and purchase intention. The results of this paper conclude overall vague slogans have the potential to reach higher levels of slogan recall …
Date:
December 2017
Creator:
Scro, Paige
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of Heat Transfer Enhancement in Channel Flow through Flow-Induced Vibration
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 study aims to improve convective heat transfer rate by increasing the perturbation in the fluid flow. A three-dimensional numerical model was constructed to simulate the effects of different flow channel geometries, including a channel with a stationary rigid cylinder, a channel with a elastic cylinder, a channel with two elastic cylinders of the same diameter, and a channel with two elastic cylinders of different diameters. Through the numerical simulations, the channel maximum wall temperature was found to be reduced by approximately 10% with a stationary cylinder and by around 17% when introducing an elastic cylinder in the channel compared with the channel without the cylinder. Channels with two-cylinder conditions were also studied in the current research. The additional cylinder with the same diameter in the fluid channel …
Date:
December 2017
Creator:
Kota, Siva Kumar k
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Furyous Female Just-Warriors of Post-Apocalypse and Dystopia
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 analyzed in this thesis are all post 9/11 films; a fact that links them culturally to the wars in Iraq and Afghanistan. In recent years, numerous milestones have been reached for women in the armed services, especially for those women in combat positions. For the first time in American history women are being recognized for their active role as soldiers in combat. Therefore, it is valid to consider the correlation between seeing women as military professionals, fighting alongside male soldiers in these films, and the cultural impact of female combat soldiers. This aspect of the thesis also imbues the female just-warrior archetype with a legitimate history, mythology, and current cultural reference; which is essential to the visibility of …
Date:
December 2017
Creator:
Lynch, Shaylynn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Understanding Perceptions of Community Gardens in the Dallas Area
This exploratory research focuses on identifying the roles and perspectives of community gardens in the Dallas area. Results from semi-structured interviews reveal the social and political makeup of the neighborhoods where the garden projects in this study are located. While these findings highlight the benefits of gardening in the city, they can also be contested spaces. In advocating for the proliferation of garden projects in the city, community organizations would benefit from understanding the nuances of garden initiatives and the way in which they are perceived by members of the garden, nearby residents, and policy makers.
Date:
December 2017
Creator:
Ayyad, Raja
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Replenishment: A Musical Narrative Inspired by Sleep
The Replenishment cycle contains five works that allude to the experience of sleep, beginning with awake drowsiness and ending with the piece inspired by rapid eye movement (REM) sleep, titled Conceiving Realities. This last piece is an intermedia work composed for chamber ensemble, live painting with biofeedback, computer, and audiovisual processing. This critical essay describes the composition of Conceiving Realities within the context of the Replenishment cycle, followed by a thorough analysis of the research involved in the technological aspects of the piece, and finally, a description of the instrumentation, notation, intermedia elements, and technology comprising the work. Conceiving Realities uses a system of interactions between painting, biofeedback, music, and video, in which a painter wears brainwave and heartbeat sensors that send data to a computer patch processing the sound of an ensemble as the painter listens and creates the painting while responding to the music. This requires a passive biofeedback system in which the painter is focused on listening and painting. The computer uses the data to process existing sounds, instead of synthesizing new lines. The score blends elements of traditional notation, graphics, and guided improvisation; giving the performers some creative agency. This alludes to the way in which …
Date:
December 2017
Creator:
Espinel, Miguel Angel
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Teaching Observational Learning to Children with Autism: An In-vivo and Video-Model Assessment
Observational learning (OL) occurs when an individual contacts reinforcement as a direct result of discriminating the observed consequences of other individuals' responses. Individuals with autism spectrum disorder (ASD) may have deficits in observational learning and previous research has demonstrated that teaching a series of prerequisite skills (i.e., attending, imitation, delayed imitation, and consequence discrimination) can result in observational learning. We sequentially taught these prerequisite skills for three young children with ASD across three play-based tasks. We assessed the direct and indirect effects of training by assessing OL before and after instruction across tasks and task variations (for two participants) during both in-vivo and video-model probes using a concurrent multiple-probe design. All participants acquired the prerequisite skills and demonstrated observational learning during probes of directly-trained tasks. Generalization results varied across participants. Observational learning generalized to one untrained task for one participant. For the other two participants, observational learning generalized to variations of the trained tasks but not to untrained tasks. Generalization additionally occurred during the in-vivo probes for both participants for whom we assessed this response. Implications of these findings, as well as directions for future research, are discussed.
Date:
December 2017
Creator:
Sansing, Elizabeth M
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Spectrum Analysis and Prediction Using Long Short Term Memory Neural Networks and Cognitive Radios
One statement that we can make with absolute certainty in our current time is that wireless communication is now the standard and the de-facto type of communication. Cognitive radios are able to interpret the frequency spectrum and adapt. The aim of this work is to be able to predict whether a frequency channel is going to be busy or free in a specific time located in the future. To do this, the problem is modeled as a time series problem where each usage of a channel is treated as a sequence of busy and free slots in a fixed time frame. For this time series problem, the method being implemented is one of the latest, state-of-the-art, technique in machine learning for time series and sequence prediction: long short-term memory neural networks, or LSTMs.
Date:
December 2017
Creator:
Hernandez Villapol, Jorge Luis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Maximal Proposition, Environmental Melodrama, and the Rhetoric of Local Movements: A Study of The Anti-Fracking Movement in Denton, Texas
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 thesis, I examine the anti-fracking movement in Denton, Texas in a series of three rhetorical analyses. In the first, I compared fracking bans used by Frack Free Denton and State College, Pennsylvania to distinguish the argumentative claims that are dependent on the politics of place, and affect strategies localities must use in resisting natural gas extraction. In the second, I compare campaign strategies that use local identity as a way of invoking legitimacy, which reinforces narrative frameworks of environmental risk. In the third, I conduct and analyze interviews with anti-fracking leaders who described the narrative of their movement, which highlighted tensions in the rhetorical construction of a movement as local. Altogether, this thesis traces the rhetorical conception of place across the rhetoric of the anti-fracking movement in Denton, Texas, while …
Date:
December 2017
Creator:
Hensley, Colton Dwayne
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Understanding Affluence through the Lens of Technology: An Ethnographic Study toward Building an Anthropology Practice in Advertising
This thesis describes a pilot study for a new cultural anthropology initiative at Team One, a US-based premium and luxury brand advertising agency. In this study, I explore the role and meaning of technology among a population of affluent individuals in Southern California through diaries and ethnographic interviews conducted in their homes. Using schema theory and design anthropology to inform my theoretical approach, I discuss socioeconomic and cultural factors that shape these participants' notions of affluence and influence their presentation of self through an examination of their technology and proudest possessions. I put forward a theory of conspicuous achievement as a way to describe how the affluent use technology to espouse a merit-based model of affluence. Through this model of affluence, participants strive to align themselves to the virtuous middle-class while ascribing moral value to their consumption practices. Lastly, I provide a typology of meaningful technology artifacts in the affluent home that describes the roles of their most used tech devices and how each type supports conspicuous achievement.
Date:
December 2017
Creator:
Garcia, Steven R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Untangled: The Effects Family Structure Has on Juvenile Delinquency
Juvenile delinquency is an issue in today's society for various reasons. This issue can result due to different motives, but family dynamics is one of the most vital factors. The current study extends prior research done in regards to the family factors that affect juvenile delinquency and what policies and programs are available to eliminate these factors. The seven family dynamics that are studied are socioeconomic status, divorce, cohabiting, family transitions, parental incarceration, parental control, as well as parental substance abuse. A subsample of policies and programs are assigned to each factor and researched of whether or not they are effective. Majority of the programs were effective and were found to minimize antisocial behaviors among adolescents. The programs that were not evaluated were still found to have a positive impact on juveniles' behaviors due to the outcomes of the policies. Investing in these programs and policies are beneficial for juveniles and the impact that family dynamics play on delinquency.
Date:
December 2017
Creator:
Murray, Taylor Danielle
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Shear and Compression Strength of Cold-formed Steel Clip Angles Subjected to Different Screw Patterns
This thesis presents experiments and numerical analysis of the cold-formed steel clip angle in three different limit states which are shear, compression, and combination of the screw connection. A previous cold-formed steel clip angle test program (which is Phase 1) developed design methods for clip angle. Therefore, the object of this thesis is to further investigate the behavior and design methods of loading-bearing cold-formed steel clip angles under different screw pattern. For each limit state, a test program was conducted to investigate the behavior, strength, and deflection of the clip angle. The test result were compared with previous CFS clip angle design method. Amending existing CFS clip angle method were developed by each of the four limit states studied in this project.
Date:
December 2017
Creator:
Yan, Zhishan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Artscapes: Community Perceptions of City Beautification through Murals in Denton, Texas
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 the needs and desires of community members. By talking to artists that have worked with KDB, members of the mural art committee, and community members from the neighborhoods that have existing murals, this research provides input from these three populations to continue creating public art for the Denton community. I discuss the context of my work through Lefebvre's concept of "Right to the City," Rafael Schacter's opposition between sanctioned and non-sanctioned murals, Bourdieu's concept of symbolic and social capital, and David Harvey's work on neoliberalism and the entrepreneurial city.
Date:
December 2017
Creator:
Robertson, Lindsey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Considerations for Global Development and Impact using Haiti as a Case Study
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 impact focused so that the paradigm of development is shifting from donations to impact investments. The push for impact, however, has led to a homogenization of global challenges like reproductive health and poverty. This, in turn, has led to a standardization of information resulting in agencies designing interventions based on data and information that is misguided because of incorrect assumptions about a specific context. This paper explores how the decision-making mechanisms of global development agencies and investors could apply more anthropological processes to mitigate negative impact. As the development sector becomes more and more standardized, anthropologists can act as translators between affected communities and the institutions deciding how best to help them.
Date:
December 2017
Creator:
Clerie, Isabelle
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Impact of True Fit® Technology on Millennial Consumer Confidence and Satisfaction in their Online Clothing Purchase
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 compile large amounts of data from designers. The purpose of this study was to analyze consumer confidence and satisfaction after True Fit® has been used to make a sizing decision while online shopping. The technology acceptance model (TAM) was used as the basis for the theoretical framework for this study. TAM explores how current advances in technology are influencing consumers' behaviors and attitudes. The variables studies included perceived ease of use, perceived usefulness, attitude, intent to use True Fit®, confidence and satisfaction. The methodology used in the study is a quantitative method consisting of an online survey and a True Fit® task, where consumers were exposed to True Fit® prior to answering questions about the use of sizing technology. The results of the study …
Date:
December 2017
Creator:
Parr, Jacqueline Nicole
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Concurrent Schedules of Reinforcement to Decrease Behavior
We manipulated delay and magnitude of reinforcers in two concurrent schedules of reinforcement to decrease a prevalent behavior while increasing another behavior already in the participant's repertoire. The first experiment manipulated delay, implementing a five second delay between the behavior and delivery of reinforcement for a behavior targeted for decrease while no delay was implemented after the behavior targeted for increase. The second experiment manipulated magnitude, providing one piece of food for the behavior targeted for decrease while two pieces of food were provided for the behavior targeted for increase. The experiments used an ABAB reversal design. Results suggest that behavior can be decreased without the use of extinction when contingencies favor the desirable behavior.
Date:
December 2017
Creator:
Palmer, Ashlyn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of HALSs and Nano-ZnO Worked as UV Stabilizers of Polypropylene
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. The PP film formulations were divided into 15 categories based on the type of HALS and nano-ZnO incorporated. This was done to derive meaningful comparison of the various film formulations. Following exposure under UV light, the lifetimes of certain formulations were determined. On the basis of the mechanical and friction properties, it was determined that generally, the HALS or nano-ZnO stabilized PP film give better properties and if those two kinds of UV stabilizers can work together.
Date:
December 2017
Creator:
Lu, Xinyao
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library