UNT Theses and Dissertations - 4,294 Matching Results

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Three Research Essays on Online Users' Concerns and Web Assurance Mechanisms

Description: Online users struggle with different concerns whenever they use information systems. According to Miyazaki and Fernandez (2001), there are three important categories of concerns for online users: privacy concern, third party fraudulent behavior concern ("system security"), and online website fraudulent behavior concern ("security"). Kim, Sivasailam, and Rao (2004) proposed a similar categorization for web assurance dimensions. They argue that online websites are supposed to address users' priv… more
Date: August 2016
Creator: Mousavizadeh Kashipaz, Seyed Mohammadreza
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Tracing the Evolution of Collaborative Virtual Research Environments: A Critical Events-Based Perspective

Description: A significant number of scientific projects pursuing large scale, complex investigations involve dispersed research teams, which conduct a large part or their work virtually. Virtual Research Environments (VREs), cyberinfrastructure that facilitates coordinated activities amongst dispersed scientists, thus provide a rich context to study organizational evolution. Due to the constantly evolving nature of technologies, it is important to understand how teams of scientists, system developers, and … more
Date: August 2016
Creator: Trudeau, Ashley B
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Twitter and Radio News: A Dallas-Fort Worth Case Study

Description: This study of radio news stations adds to the field of Twitter research into broadcasters' use of this social media microblogging platform; previous research has predominantly focused on television. This case study, based on a survey with numerous open-ended questions completed in face-to-face interviews, begins to fill in data on how Twitter is being used in major market radio station newsrooms. Limited in scope, this exploratory study used answers from seven members of two radio newsrooms in … more
Date: August 2016
Creator: Lambert, Mark T
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Two Harpsichord Sonatas by Antonio Soler: Analysis and Transcription for Solo Guitar

Description: There is a puacity of original works from the Baroque Era for the guitar. Transcriptions, especially music originally for harpsichord, complement the guitarist's repertoire. Dominating the priviledged space in the guitar canon, represented by Baroque transcriptions, are the composers Johann Sebastian Bach, George Frideric Handel and Domenico Scarlatti. Underrepresented in the Baroque guitar canon is the music of Spanish composers, most noteworthy, the harpsichordist Padre Antonio Soler, who com… more
Date: August 2016
Creator: Daniel, Andrew
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Two Piano Editions of the Third and Fifth Movements of Bartók's Concerto for Orchestra: Their Textual Fidelity and Technical Accessibility

Description: In the case of Concerto for Orchestra, Béla Bartók transcribed one of his most emblematic orchestral compositions to his own solo instrument, the piano. This transcription's primary function was to suffice for ballet rehearsal accompaniment for the choreography to be introduced alongside a performance of the orchestral work. György Sándor, Bartók's pupil and pianist, prepared the original manuscript for publication. Logan Skelton, pianist-composer, used this published edition as a point of depa… more
Date: August 2016
Creator: Polgár, Éva, 1983-
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Understanding Principal Perceptions of Stress and Burnout: A Qualitative Case Study in North Texas School Districts

Description: This qualitative case study examined principals' perceptions regarding stress and burnout, investigated perspectives regarding ways to alleviate chronic stress, and analyzed the extent to which future role expectations are related to chronic stress and feelings of burnout. Perceptions of eight elementary principals in large, suburban school districts who experienced similar professional preparation prior to receiving their first principalship were analyzed. Participants, identified through cr… more
Date: August 2016
Creator: Lovell, Joy E.
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Understanding the Information Seeking of Pre-Kindergarten Students: An Ethnographic Exploration of Their Seeking Behaviors in a Preschool Setting

Description: Although there has been research conducted in the area of information seeking behavior in children, the research focusing on young children, more specifically on pre-kindergarten students, is almost nonexistent. Children at this age are in the preoperational developmental stage. They tend to display curiosity about the world around them, and use other people as a means to gain the information they are seeking. Due to the insistence from President Obama to implement pre-kindergarten programs … more
Date: August 2016
Creator: Stewart, Sarah Nykole
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Using a Conditional Discrimination Training Procedure to Teach College Students to Play Music by Ear

Description: A conditional discrimination training procedure was used to establish stimulus-stimulus relations that might lead to the emergence of relations that define playing by ear. The participants were four college students. Overall, the results varied across participants. Of the 3 participants who received Training 1 (hear-note-name/select-key), all 3 participants acquired that relation. Out of those 3 participants, 2 participants showed emergence of the hear-see-key-pressed/say-note-name relation aft… more
Date: August 2016
Creator: Holder, Stephanie Shae
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Using Pre-Session Mindfulness to Improve Session Presence and Effectiveness: A Randomized-Controlled Trial

Description: While a significant amount of research illustrates the overall positive effects of therapists' general use of mindfulness, very few studies have addressed whether therapists' use of mindfulness translates to improved psychotherapy outcomes. The present study utilized a randomized-controlled design to test whether a brief mindfulness training program and pre-session mindfulness practice could have a positive impact on therapy; in particular, we hypothesized that mindfulness training and practic… more
Date: August 2016
Creator: Dunn, Rose
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Using Topic Models to Study Journalist-Audience Convergence and Divergence: The Case of Human Trafficking Coverage on British Online Newspapers

Description: Despite the accessibility of online news and availability of sophisticated methods for analyzing news content, no previous study has focused on the simultaneous examination of news coverage on human trafficking and audiences' interpretations of this coverage. In my research, I have examined both journalists' and commenters' topic choices in coverage and discussion of human trafficking from the online platforms of three British newspapers covering the period 2009–2015. I used latent semantic ana… more
Date: August 2016
Creator: Papadouka, Maria Eirini
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William Byrd's Motet "Tristitia et anxietas" through Elizabethan Eyes: Performance Practice based on an Examination of Sixteenth-Century Sources

Description: By considering sixteenth-century English chorister training, modern singers of Renaissance vocal music are informed of the practical and academic demands unique to Elizabethan musicians and audiences. Clauses in relevant choirmaster contracts provide an insight into pedagogical expectations of teachers and their choristers. Studies included plainchant, grammar, Latin, rhetoric, improvisation, poetry, morality, instrumental instruction on organ and viols, and composition. For those not associate… more
Date: August 2016
Creator: Irving, John (John Wells)
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Wireless Signal Conditioning

Description: This thesis presents a new approach to extend and reduce the transmission range in wireless systems. Conditioning is defined as purposeful electromagnetic interference that affects a wireless signal as it propagates through the air. This interference can be used constructively to enhance a signal and increase its energy, or destructively to reduce energy. The constraints and limitations of the technology are described as a system model, and a flow chart is used to describe the circuit process. … more
Date: August 2016
Creator: Valero, Daniel
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Workfunction tuning of AZO Films Through Surface Modification for Anode Application in OLEDs.

Description: Widespread use of organic light emitting diodes (OLEDs) in solid state lighting and display technologies require efficiency and lifetime improvements, as well as cost reductions, inclusive of the transparent conducting oxide (TCO). Indium tin oxide (ITO) is the standard TCO anode in OLEDs, but indium is expensive and the Earth's reserve of this element is limited. Zinc oxide (ZnO) and its variants such as aluminum-doped ZnO (AZO) exhibit comparable electrical conductivity and transmissivity to … more
Date: August 2016
Creator: Jha, Jitendra
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The 50,000 Watt Blowtorch of the Great Southwest: The History of WBAP

Description: This paper looks at the history of WBAP while examining how programming has changed from 1922-2014 and how WBAPs audience helped shape programming at the station. This paper reveals four formatting changes throughout the stations history and provides in-depth statistical analysis of how WBAPs audience changed during the stations 90 plus years of existence.
Date: December 2016
Creator: Dixon, Chad M
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Academic Progress Scores to Predict Performance on a State Assessment

Description: This quantitative study examined seventh-grade reading scores to determine the extent to which certain demographic variables (race/ethnicity, gender, socioeconomic status) explain and MAP reading scores predict reading scores on the State of Texas Assessment of Academic Readiness (STAAR) in a selected northeast Texas public school. Standardized assessments only compare the relative performance of an individual student to other groups of students using scaled scores, which can vary from year to… more
Date: December 2016
Creator: Curry, David Mitchell
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Acceptability of Behavioral Interventions for Autism

Description: Caregivers' evaluation of evidence-based behavioral interventions may differ dependent upon the type of language used to describe the intervention. We administered a survey to 24 parents of children with autism to assess social validity measures of behavioral interventions described in one of three communication styles: technical, conversational, and conversational with intended outcome. Participants were presented with a description of two behavior-reduction and two behavior-acquisition interv… more
Date: December 2016
Creator: Fatema, Afshaan
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Adolescent's Social Networking Use and Its Relationship to Attachment and Mental Health

Description: Adolescents spend much of their time using the internet and electronic media. Since its inception, the use of online social networking (OSN) sites by adolescents continues to grow. With the proliferation of OSN, it is critical to examine how this activity affects psychological development, but better measurement tools are needed. As researchers struggle to keep up with this rapidly growing field, many gaps remain in the literature investigating the interrelations between adolescent's OSN use a… more
Date: December 2016
Creator: Woolford, Brittany
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Adult Learning: Evaluation of Preferences for Technology and Learning Sources for Workplace Learning

Description: The purpose of this research was to provide an initial investigation of the preferences for both technology and learning sources that are available today in the modern workplace at a large financial institution with a national presence in the USA. In addition to the preferences of the participants, the research includes insights about the culture of the learning organization by using the Dimension of Learning Organization Questionnaire (DLOQ) and two preference surveys. The research methods … more
Date: December 2016
Creator: Kaiser, Robert Cresswell
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Analysis of Pre-ictal and Non-Ictal EEG Activity: An EMOTIV and LabVIEW Approach

Description: In the past few years, the study of electrical activity in the brain and its interactions with the body has become popular among researchers. One of the hottest topics related to brain activity is the epileptic seizure prediction. Currently, there are several techniques on how to predict a seizure; however, most of the techniques found in research papers are just mathematical models and not system implementations. The seizure prediction approach proposed in this thesis paper is achieved using t… more
Date: December 2016
Creator: Medina, Oscar F
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Analysis of Students' Knowledge, Perceptions, and Interest in Engineering Post Teacher Participation in a National Science Foundation (NSF) Research Experience for Teachers (RET) Professional Development

Description: This study examined the impact of the National Science Foundation's Research Experience for Teachers (RET) in engineering at University of North Texas on students after their teachers' participation in the program. Students were evaluated in terms of self-efficacy, knowledge of engineering, perceptions of engineering, and interest in engineering. A 22-item Likert pre/post survey was used for analysis, and participants included 589 students from six high schools, one middle school, and one magne… more
Date: December 2016
Creator: Reeder, Christina
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Analyzing Tuberculosis Vulnerability and Variables in Tarrant County

Description: Over 9 million new cases of tuberculosis (TB) were reported worldwide in 2013. While the TB rate is much lower in the US, its uneven distribution and associated explanatory variables require interrogation in order to determine effective strategies for intervention and control. However, paucity of case data at fine geographic scales precludes such research. This research, using zip code level data from 837 confirmed TB cases in Tarrant County obtained from Texas Department of State Health Servic… more
Date: December 2016
Creator: McGlone, John Francis
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Angular Analysis of a Wide-Band Energy Harvester based on Mutually Perpendicular Vibrating Piezoelectric Beams

Description: The recent advancements in electronics and the advents of small scaled instruments has increased the attachment of life and functionality of devices to electrical power sources but at the same time granted the engineers and companies the ability to use smaller sources of power and batteries. Therefore, many scientists have tried to come up with new solutions for a power alternatives. Piezoelectric is a promising material which can readily produce continuous electric power from mechanical inputs… more
Date: December 2016
Creator: Mirzaabedini, Sohrab
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Assessing the Older Diabetic Population in the US: A Descriptive Look at This Population from 2001-2010 Focusing upon Education and Clinical Behaviors

Description: The focus of this research study was to gain needed information on the older adult population in the United States who have diabetes. The research method was quantitative retrospective study of American diabetes obtained from the National Health Interview Survey database from 2001 through 2010. The study results confirmed more than one-third of the U.S. diabetics are aged 65 and older. More than 75% of the older diabetic population report clinical limitations or comorbidities. Based on surr… more
Date: December 2016
Creator: Parker, Patti Annette
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Partner: UNT Libraries
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