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open access

Static Bustle: Patterns Achieved Through Repetitive Processes (Artists Statement)

Description: Static Bustle is a gradute work that explores relationships between visual art and sound through experiments with new and traditional media, including sound, video, digital images prints and fibers. Through strategic processes of layering and repetition, the researcher seamlessly unifies this remarkable range of media into an accessible and cohesive vision. Overall, this research shows visual and sonic pattern achieved through repetitive processes.
Date: May 2015
Creator: Vogt, Jonathan C.
Partner: UNT Libraries
open access

Polyphonic Harmony in Three of Ferruccio Busoni’s Orchestral Elegies

Description: This dissertation focuses on three of Busoni’s late orchestral works known as “orchestral elegies”: Berceuse élégiaque (Elegie no. 1, 1909), Gesang vom Reigen der Geister (Elegie no. 4, 1915), and Sarabande (Elegie no. 5, 1918-19). The study seeks to provide a better understanding of Busoni’s late style as a crucial bridge from late nineteenth-century chromaticism in the works of Liszt, Wagner, and others to the post-tonal languages of the twentieth century. At the heart of this study lies a particular concept that forms the basis of many characteristic features of Busoni’s late style, namely the concept of polyphonic harmony, or harmony as a cumulative result of independent melodic lines. This concept is also related to a technique of orchestration in which the collective harmony is sounded in such a way that the individual voices are distinct. In the highly personal tonal language of Busoni’s late works, passages often consist of a web of motives weaved throughout the voices at the surface level of the music. Linear analysis provides a means of unravelling the dense fabric of voices and illustrating the underlying harmonic progressions, which most often consist of parallel, primarily semitonal, progressions of tertian sonorities. Chapter 1 provides a backdrop for this study, including a brief summary of Busoni’s ideas on the aesthetics of music and a summary of his influence and development as a composer. Chapter 2 addresses the concept of polyphonic harmony in more detail, some theoretical ideas related to it, and characteristics of Busoni’s late style that reflect this concept. Chapter 3 is dedicated to analytical methodology, addressing concepts which emerge from various linear approaches to the analysis of some twentieth-century music. Chapters 4, 5, and 6 are each dedicated to a specific work, the purpose being to illuminate through linear analysis compositional characteristics and techniques related …
Date: May 2015
Creator: Davis, Colin
Partner: UNT Libraries
open access

Structure, Composition, and Regeneration of Cross Timbers Forest Fragments in Different Land Use Contexts

Description: Throughout its current range, the Cross Timbers forest ecosystem is vulnerable to land-use change. In this study, we examined the surrounding land use matrix on the vegetation structure, composition and regeneration of six Cross Timbers forest fragments in Denton County, Texas (north of the Dallas-Fort Worth metroplex). Two fragments adjacent to agricultural land, two to residential neighborhoods, and two formally protected forest sites were selected. In summer 2015, five 100 m2 plots were randomly established in each fragment at least 200 meters from the edge. In each plot, all live and dead trees ≥ 3 cm diameter were identified and their height and diameter at breast height (DBH at 1.3 m aboveground) measured. Evidence of dumping (presence of trash) was recorded as an index of human frequentation. Differences in vegetation structure among the forest fragments were found. Most notably, fragments adjacent to agriculture contained 25% to 50% fewer trees per hectare than all other sites (Kruskal-Wallis, p < 0.02), especially trees <10 cm DBH. However, residential fragments had fewer trees that were ≥15 cm DBH compared to the other fragments, indicating that these are the youngest of the forest patches surveyed. Trash was observed in 60% of plots surveyed at residential forest sites, showing high levels of human frequentation compared to the protected and agricultural forest sites. Agricultural sites contained the lowest number of recorded tree species and were most similar to each other, sharing 91% of species. These findings indicate that surrounding land use affects forest structure and composition, consequently affecting valuable ecosystem services including wildlife habitat, aesthetics and recreation.
Date: May 2015
Creator: Dunn, Ingrid
Partner: UNT Libraries
open access

The Relationship of Peer Leadership Employment to Academic Outcomes in Texas Institutions of Higher Education

Description: The purpose of this quantitative study was to examine the relationship of participation and involvement in an undergraduate student success program to academic success and persistence among students in three programs sponsored by the Texas Higher Education Coordinating Board (THECB): the G-Force Collegiate Work-Study Mentorship Program, the Advancement Via Individual Determination (AVID) for Higher Education (AHE) program, and the THECB work-study program. The sample was identified using data from the THECB during the 2009-2013 academic years. Compared to THECB work-study students, significantly more AHE and G-Force students persisted toward graduation while engaged in the program (p < .001). ANOVA indicated that AHE students had a higher average GPA compared to G-Force and THECB work-study students, controlled for gender, race/ethnicity, pre-program GPA, and length of time in the position. Regression analyses found no statistically significant relationship between program associations and persistence towards graduation or GPA. Results suggest that although participation in a peer leadership programs such as AHE and G-Force encourage greater academic achievement and persistence, there is no direct relation to the achievement of these outcome variables. Implications of the study suggest the need for a deeper analysis into elements of peer leadership programs that contribute to student success, an expanded analysis of outcomes across a wider range of demographic variables, and an exploration of peer leadership programs across campuses for comparison of persistence and GPA outcomes.
Date: May 2015
Creator: Buggs, Michelle L.
Partner: UNT Libraries
open access

The Effects of a Psychosocial Environment on College Women’s Exercise Regulations and Social Physique Anxiety

Description: A positive psychosocial intervention comprised of high autonomy support, task-involvement, and caring was implemented in physical activity classes to examine its effects on college women’s basic psychological needs (i.e. autonomy, competence, relatedness), exercise regulations (i.e. external, introjected, identified, integrated, intrinsic) and social physique anxiety (SPA). We hypothesized that at the end of the semester, participants in the intervention group (N = 73) would report greater need satisfaction, more self-determined regulations and less SPA than participants in the non-intervention group (N = 60). At T1 and T2, both the intervention and non-intervention participants reported “agreeing” with experiencing an autonomy supportive, task-involving, and caring environment. Furthermore, both groups at T1 and T2 reported moderate SPA. No significant group differences were found at T1. At T2, significant group differences were observed in the intervention and non-intervention groups’ report of external regulation and intrinsic regulation. The results suggests that group exercise instructors are capable of creating a positive psychosocial environment to enhance students’ intrinsic motivation.
Date: May 2015
Creator: Alvarez, Ana
Partner: UNT Libraries
open access

A Study of Firm Location to Examine Disclosures and Governance Using a Dual Approach: Quantitative Analysis Based Upon the Sarbanes-Oxley Act of 2002 and Qualitative Analysis of the Annual Report’s Management Discussion and Analysis

Description: The purpose of this dissertation is to investigate the effect of U.S. firms’ geographic location, whether urban or rural, on their corporate disclosure and governance practices. An “urban” firm is one that is headquartered in a large metropolitan area; whereas, a “rural” firm is one that is headquartered some distance from any metropolitan area. Specifically, the study examines whether there are different stock market reactions to urban and rural firms around key event dates relative to the enactment of the Sarbanes-Oxley Act (SOX) on July 30, 2002. Also, the readability and linguistic style in the Management Discussion and Analysis (MD&A) section of public company’s annual reports (Form 10-K) to the Securities and Exchange Commission (SEC) are investigated to determine whether urban and rural firms communicate information differently to investors.
Date: May 2015
Creator: Garner, Steve A.
Partner: UNT Libraries
open access

Convenience to the Cataloger or Convenience to the User?: An Exploratory Study of Catalogers’ Judgment

Description: This mixed-method study explored cataloger’s judgment through the presence of text as entered by catalogers for the 11 electronic resource items during the National Libraries test for Resource Description and Access (RDA). Although the literature discusses cataloger’s judgment and suggests that cataloging practice based on new cataloging code RDA will more heavily rely on cataloger’s judgment, the topic of cataloger’s judgment in RDA cataloging was not formally studied. The purpose of this study was to study the differences and similarities in the MARC records created as a part of the RDA National Test and to determine if the theory of bounded rationality could explain cataloger’s judgment based on the constructs of cognitive and temporal limits. This goal was addressed through a content analysis of the MARC records and various statistical tests (Pearson’s Chi-square, Fisher’s Exact, and Cramer’s V). Analysis of 217 MARC records was performed on seven elements of the bibliographic record. This study found that there were both similarities and differences among the various groups of participants, and there are indications that both support and refute the assertion that catalogers make decisions based on the constructs of time and cognitive ability. Future research is needed to be able to determine if bounded rationality is able to explain cataloger’s judgment; however, there are indicators that both support and refute this assertion. The findings from this research have implications for the cataloging community through the provision of training opportunities for catalogers, evaluating workflows, ensuring the proper indexing of bibliographic records for discovery, and recommended edits to RDA.
Date: May 2015
Creator: Hasenyager, Richard Lee, Jr.
Partner: UNT Libraries
open access

The Relation Between Exposure to Intimate Partner Violence and Dating Violence in a Social Information Processing Model Among Young Adults

Description: Dating violence (DV) among young adults, specifically in college settings, is a serious issue with potential severe repercussions – both physically and psychologically – for victims of DV (DV victimization), and even financially on societal institutions as a whole. Exposure to parental intimate partner violence (IPV) has been associated with DV in young adults. Such violent behaviors appear to be associated with a recurrent pattern of aggressive thought processes, content, and arousing emotions. This study investigated the mediating effects of explicit socio-cognitive processes, through the reformulated social information processing (SIP) model, and implicit cognitive processes for exposure to parental IPV on DV perpetration and victimization, as well as the moderating effects of identification with parental figures and emotional arousal for exposure to parental IPV on predicting DV perpetration and victimization. 85 college students (men n = 23, M age = 22.29) were recruited for the study and results revealed that exposure to father-to-mother IPV predicted DV victimization, and that the interaction between exposure to father-to-mother IPV and identification with maternal figure predicted DV victimization. Conversely, identification with a parental figure negatively predicted DV victimization. The results revealed that SIP processes did not mediate the relationship for exposure to parental IPV on DV perpetration, however, SIP process of aggressive responding was positively associated with exposure to father-to-mother IPV and DV perpetration. Next, interaction of exposure to mother-to-father IPV and positive affective arousal is associated with less severe SIP hostile attributions and less positive evaluations of aggression responses. Finally, implicit cognition did not mediate exposure to parental IPV and DV perpetration.
Date: May 2015
Creator: Chong, Chu Chian
Partner: UNT Libraries
open access

Deleterious Synergistic Effects of Concurrent Magnetic Field and Superparamagnetic (Fe3O4) Nanoparticle Exposures on CHO-K1 Cell Line

Description: While many investigations have been performed to establish a better understanding of the effects that magnetic fields and nanoparticles have on cells, the fundamental mechanisms behind the interactions are still yet unknown, and investigations on concurrent exposure are quite limited in scope. This study was therefore established to investigate the biological impact of concurrent exposure to magnetic nanoparticles and extremely-low frequency magnetic fields using an in-vitro CHO-K1 cell line model, in an easily reproducible manner to establish grounds for further in-depth mechanistic, proteomic, and genomic studies. Cells were cultured and exposed to 10nm Fe3O4 nanoparticles, and DC or low frequency (0Hz, 50Hz, and 100Hz) 2.0mT magnetic fields produced by a Helmholtz coil pair. The cells were then observed under confocal fluorescence microscopy, and subject to MTT biological assay to determine the synergistic effects of these concurrent exposures. No effects were observed on cell morphology or microtubule network; however, cell viability was observed to decrease more drastically under the combined effects of magnetic field and nanoparticle exposures, as compared to independent exposures alone. It was concluded that no significant difference was observed between the types of magnetic fields, and their effects on the nanoparticle exposed cells, but quite clearly there are deleterious synergistic effects of these concurrent magnetic field and nanoparticle exposure conditions.
Date: May 2015
Creator: Coker, Zachary
Partner: UNT Libraries
open access

Down and Out: a Novel

Description: A creative dissertation consisting of two parts: a novel and a critical preface. The critical preface, titled “Novel without Falsehood” deals directly with David Shields’s Reality Hunger, touching on issues of reality as it pertains to truth, writing, fiction, and contemporary culture. The novel is entitled Down and Out and follows the fortunes of a small town in Arkansas before, during, and after its sole source of employment ceases to exist.
Date: May 2015
Creator: Briseño, J. Andrew
Partner: UNT Libraries
open access

The Light of Dark-Age Athens: Factors in the Survival of Athens after the Fall of Mycenaean Civilization

Description: When looking at Dark Age Greece, one of the most important sites to consider is Athens. The Dark Age was a transitional period between the fall of Mycenaean Greece of the Bronze Age, and Archaic Greece of the Iron Age. This period is called the Dark Age because the palaces that ruled the Mycenaean age collapsed, and with them fell civilization in mainland Greece. Writing, fine art, massive architecture, trade, and luxury goods disappear from mainland Greece. But Athens survived the fall of the Mycenaeans. In order to understand the reason why Athens survived one must look at what the causes of the fall of the Mycenaeans were. Theories range from raiders and invasion, to natural disasters, such as earthquakes, droughts, and plagues. One must also examine Greece itself. The landscape and climate of Greece have a large impact on the settlement of the Greeks. The land of Greece also affects what Greek communities were able to do economically, whether a city would be rich or poor. It is because Athens is located in Attica that it survived. Attica had the poorest soil in the Mycenaean world, and was the poorest of the major cities, therefore, when looking at the collapse of the Mycenaeans being caused by people, there would be no reason for said people to raid or invade Athens and Attica. It is because Athens survives that it is such an important site. Athens survived the fall of the Mycenaeans and in doing so acts as a refugee center and a jumping off point for the remaining Mycenaeans to flee east, to the Aegean islands and Anatolia. Athens also stayed occupied during the Dark Age and because of this it was able to make some advancements. In particular Athens was a leader in mainland Greece in the development …
Date: May 2015
Creator: Golightly, Paul
Partner: UNT Libraries
open access

Participant Perspectives: Investigating the Experience of Low-Income Schizophrenics in Clinical Research Trials

Description: The continued investigation into the experiences of individuals with schizophrenia who participate in biomedical research trials is necessary in order to understand participants’ perspectives, motivations, attitudes, values, and beliefs. As important stakeholders in the clinical research process, participant feedback is significant and can help shed light on, not only their experiences, but also deepen understandings when it comes to clinical trial participants’ perceptions of informed consent and personal autonomy. Conducting ethical research demands the exploration of these issues and specifically targeting this vulnerable group helped to address a gap in the literature. This study was conducted for InSite Clinical Research and gathered data in the form of in-depth semi-structured interviews and a short survey instrument with 20 low-income adults diagnosed with schizophrenia that participate in clinical research trials. Findings indicate overall positive research experiences, with motivations aligning with previous research when it comes to trial participation including: altruism, personal benefit, access to medications, financial incentives, and psychosocial treatment. Learning about their illness and themselves, autonomy, and debriefing were also particularly important within this group. Unique to this sample were findings of friendship. Trust in the research staff was identified as a major underlying value and shaping factor impacting informed consent decisions. These conclusions have implications for recruitment and informed consent practices at InSite Clinical Research.
Date: May 2015
Creator: Green, Asha M.
Partner: UNT Libraries
open access

Nanohybrids Based on Solid and Foam Polyurethanes

Description: Polymer nanocomposites are a going part of Materials Science and Engineering. These new composite materials exhibit dimensional and thermal stability of inorganic materials and toughness and dielectric properties of polymers. Development of nanocomposites become an important approach to create high-performance composite materials. In this study silica, fly ash, silica nanotubes and carbon black particles have been added to modify polyurethane foam and thermoplastic polyurethanes. It has been found that the addition of silica can diminish the size of foam bubbles, resulting in an increased stiffness of the material, increase of the compressive strength, and greater resistance to deformation. However, the uniformity of bubbles is reduced, resulting in increased friction of the material. Fly ash added to the foam can make bubbles smaller and improve uniformity of cells. Therefore, the material stiffness and compressive strength, resistance to deformation, and has little impact on the dynamic friction of the material. Adding nanotubes make bubble size unequal, and the arrangement of the bubble uneven, resulting in decreased strength of the material, while the friction increases. After the addition of carbon black to the polyurethane foam, due to the special surface structure of the carbon black, the foam generates more bubbles during the foaming process changing the foam structure. Therefore, the material becomes soft, we obtain a flexible polyurethane foam. The results of mechanical properties determination of the thermoplastic polyurethane that adding particles may increase the stiffness and wear resistance of the thermoplastic polyurethane, while the tensile properties of the material are reduced. This phenomenon may be due to agglomeration of particles during the mixing process. Possibly the particles cannot be uniformly dispersed in the thermoplastic polyurethane.
Date: May 2015
Creator: Bo, Chong
Partner: UNT Libraries
open access

A Predictive Model of Adolescent Persistence in Counseling

Description: Adolescence is a developmental period characterized by profound social and emotional changes. Counseling can serve as a protective factor for decreasing the long-term negative emotional effects. Despite this fact, counselors continue to struggle with high rates of attrition among adolescent clients. When examining trends of client persistence in counseling across the lifespan, researchers found a relationship between the presence of internalizing and externalizing behaviors. Additionally, they found that high levels of familial stress predicted premature termination from counseling. The purpose of the current study was to create a predictive model of adolescent persistence in counseling. I examined both personal and environmental characteristics of adolescents who sought counseling services (N = 72) from an on-campus university counseling clinic that serves as a training facility for master’s and doctoral students at an accredited counselor education program in the southwestern United States. Participants were predominantly White (67.6%, n = 50), with a mean age of 14.23 (SD = 1.65). Nearly 60% (n = 44) of the clients were female, and 37.8% were male (n = 28). Beyond descriptive variables, eight predictor variables were examined: adolescent involvement in their intake, time spent on the wait list, four domains of parental stress, and parent perceptions of adolescent internalizing and externalizing behaviors. A multiple linear regression was conducted to understand how much of the variance in the number of counseling sessions attended by adolescent clients was explained by the predictor variables. The regression analysis was statistically significant (p = .008) and accounted for 29.1% (R2adj = .192) of the variance in sessions attended. Of the variables examined, externalizing behaviors (42.82%) accounted for the most variance in sessions attended, followed by whether the adolescent was involved in the intake (29.16%), internalizing behaviors (12.96%), and parent-focused stress (10.30%). An examination of the two strongest predictors in correlation to …
Date: May 2015
Creator: Holm, Jessica M.
Partner: UNT Libraries
open access

Estimation of Air Emissions During Production Phase from Active Oil and Gas Wells in the Barnett Shale Basin: 2010-2013

Description: The Barnett shale basin, the largest onshore gas field in the state of Texas, mainly produces natural gas. The basin’s oil and gas productions have dramatically increased over the past two decades with the enhancement via shale fracturing (fracking) technology. However, recent studies suggest that air emissions from shale fracking have significantly contributed to the growing air pollution problem in North Texas. In this study, air emissions from the Barnett shale basin during the production phase of the oil and gas activities (once the product is collected from the wells) are quantified. Oil and gas production data were acquired from the Texas Railroad Commission for the baseline years of 2010 through 2013. Methodology from prior studies on shale basins approved by the Texas Commission on Environmental Quality was employed in this study and the emission inventories from the production phase sources were quantified. Accordingly, the counties with the most gas operations in the basin, Tarrant, Johnson, Denton and Wise, were found to be the highest emitters of air pollutants. Tarrant County was responsible for the highest emitted NOx (42,566 tons) and CO (17,698 tons) in the basin, while Montague County released the maximum VOC emissions (87,601 tons) during the study period. Amongst the concerned emitted pollutants, VOC was the largest emitted pollutant during the study period (417,804 tons), followed by NOx (126,691 tons) and CO (47,884 tons). Significant Sources of air emissions include: storage tanks, wellhead compressor engines, and pneumatic devices. Storage tanks and pneumatic devices contributed to about 62% and 28% of the total VOC emissions, respectively. Whereas, wellhead compressor engines are primarily responsible for about 97% of the total NOx emissions. Finally, in Tarrant, Wise and Denton counties, the emissions increased during the study period due to increase in the oil and gas production, while Johnson County’s emission …
Date: May 2015
Creator: Dohde, Farhan A.
Partner: UNT Libraries
open access

Community Development at Heronswood Botanical Garden

Description: The overall main goal of this research is to assist with the planning and creation of an ethnobotanical addition at the Heronswood Garden, a botanical garden located in northwest Washington state recently purchased by the Port Gamble S’Klallam Tribe. Methods included a three month long ethnographic study of Heronswood Garden as an official intern, and conducting a needs assessment that primarily employed participant observation and semi-structured open-ended interviews with all garden employees. Information revealed through the research includes causal issues behind a lack of community participation at the garden, elaboration on the solutions to various issues facilitated by negotiating and combining the views and opinions of the garden’s employees, and author reflections on the needs assessment report and the project as a whole. This research connects itself with and utilizes the methodologies and theories from applied anthropology, environmental anthropology, and environmental science to provide contemporary perspective into the subject of preserving or preventing the loss of biodiversity, language diversity, and sociocultural diversity.
Date: May 2015
Creator: Cherry, Levi Scott
Partner: UNT Libraries
open access

"Miss Kathy"

Description: Miss Kathy is a documentary film that tells the story of Kathy Griffin-Grinan, a lead recovery coach for prostitution and human trafficking with the Harris County Sheriff’s Office. Her non-profit organization —We’ve Been There, Done That – works in conjunction with law-enforcement to offer the survivors of prostitution a chance at rehabilitation. With endless enthusiasm, she mentors survivors as they struggle to escape a destructive lifestyle. This film also explores the relationship between human trafficking and prostitution, while addressing issues of victimization and exploitation.
Date: May 2015
Creator: Alexander, Jeffrey, 1982-
Partner: UNT Libraries
open access

Synthesis and Characterization of Ion Beam Assisted Silver Nanosystems in Silicon Based Materials for Enhanced Photocurrent Collection Efficiency

Description: In recent years a great deal of interest has been focused on the synthesis of transitional metal (e.g. Ag, Cu, Fe, Au) nanosystems at the surface to sub-surface regions of Si and SiO2 matrices for fundamental understanding of their structures as well as for development of technological applications with enhanced electronic and optical properties. The applications of the metal nanoparticle or nanocluster (NC) systems range from plasmonics, photovoltaic devices, medical, and biosensors. In all of these applications; the size, shape and distribution of the metallic NCs in the silicon matrix play a key role. Low energy ion implantation followed by thermal annealing (in vacuum or gas environment) is one of the most suitable methods for synthesis of NCs at near surfaces to buried layers below the surfaces of the substrates. This technique can provide control over depth and concentration of the implanted ions in the host matrix. The implanted low energy metal ions initially amorphizes the Si substrates while being distributed at a shallow depth near the substrate surface. When subject to thermal annealing, the implanted ions agglomerate to form clusters of different sizes at different depths depending upon the fluence. However, for the heavier ions implanted with high fluences (~1×1016 - 1×1017 atoms/cm2), there lies challenges for accurately predicting the distribution of the implanted ions due to sputtering of the surface as well as redistribution of the implants within the host matrix. In this dissertation, we report the investigation of the saturation of the concentration of the implanted ion species in the depth profiles with low energies (< 80 keV) metal ions (Ag and Au) in Si (100), while studying the dynamic changes during the ion implantation. Multiple low energies (30-80 keV) Ag ions with different fluences were sequentially implanted into commercially available Si wafers in order to facilitate …
Date: May 2015
Creator: Dhoubhadel, Mangal S.
Partner: UNT Libraries
open access

Levanten La Mano Si Me Entienden: Receptive Bilinguals’ Linguistic and Cultural Perceptions in Secondary Spanish Classes

Description: Receptive bilinguals have been in a dilemma of knowing just enough Spanish to write and aurally comprehend the curriculum at the beginning-intermediate levels of a Spanish language course. This dichotomy in classrooms with mixed-ability learners has created a need to reconsider placement and pedagogical structures tailored for these students in foreign language courses. Thus, this descriptive study examined the perceptions of receptive bilinguals, drawn from two secondary Spanish courses regarding receptive bilinguals’ language use, personal Spanish language abilities and confidence, personal beliefs about the language, and contentment with the course. For this study, 31 participants were selected from two public high schools in a suburb of a large metropolitan area in north Texas. Two surveys, a listening assessment and an online questionnaire, were administered at the end of the academic year. The Likert questionnaire items were analyzed using SPSS software, while open-ended questions were coded for recurrent themes. Analyses revealed four major findings. First, with regard to influence on language use, participants’ grandparents created the most interaction with the Spanish language when compared with the other family groups. In addition, Spanish influence through television, literature, radio, and music contributed to students’ early childhood Spanish learning. Second, as to language preference, although participants perceived English to be the language with which they were most at ease, they were also confident in their Spanish conversational abilities. Third, with respect to perceptions of language abilities, Spanish 2Pre-AP students noticed an increased ability in listening, speaking, and writing the language. In both courses, students’ receptive ability was one of the highest abilities. Receptive bilinguals reflected a sense of pride and passion for the language. They desired to improve their language through their own self-motivation as a way to connect with family. Fourth, and finally, in reporting on course contentment, participants expressed overall contentment with …
Date: May 2015
Creator: Baker, Adelita Gonzales
Partner: UNT Libraries
open access

First Movement of the Beethoven Third Piano Concerto: An Argument for the Alkan Cadenza

Description: The goal of this dissertation is not only to introduce the unique cadenza by Alkan but also to offer an argument from the performer’s point of view, for why Alkan’s cadenza should be considered when there exists a cadenza by Beethoven himself, not to mention those by a number of other composers, both contemporaries of Beethoven and later. Information in reference to the brief history of the cadenza and the pianoforte in the time of Mozart and Beethoven is presented in Chapter 2. A brief bibliography about Alkan is presented in Chapter 3. Chapter 4 describes not only the cadenza in the era of Alkan, but also a comparison which is presented between Beethoven and Alkan's cadenzas. Examples of the keyboard range, dynamic contrast, use of pedal and alternating notes or octaves, and creative quote are presented in Chapter 4. In conclusion, the revival of Alkan's cadenza is mentioned, and the author's hope to promote the Alkan's cadenza is presented in Chapter 5.
Date: May 2015
Creator: Ding, Yang
Partner: UNT Libraries
open access

Plebiscites

Description: This study investigates factors that can influence leaders to use plebiscites to settle territorial claims. A quick survey of the plebiscite literature shows that the method has been extensively mentioned in the legal, historical, and philosophical fields (mostly through case studies) but less so in political science. This thesis is the first attempt, to my knowledge, to quantitatively investigate the different factors that can influence a leader to use a plebiscite. Using the latest version of the ICOW dataset, I test political and economic theories to try to explain the variation in the decision outcome. This study includes the following variables: identity ties, economic strength, an interaction between identity ties and economic strength, internal constraints (regime type and violent interaction), and external constraints (membership to international organizations). The results suggest that identity ties offer the strongest explanation as to why leaders settle a territorial claim with a plebiscite. Plebiscites have been rarely used to settle territorial claims, but when used they tend to settle cases permanently. This thesis serves as an attempt to revive a method that while difficult to agree upon, can be successful in resolving territorial claims permanently, and more importantly peacefully.
Date: May 2015
Creator: Fonseca Acosta, Rosa
Partner: UNT Libraries
open access

Exploring the Relationships Between Faculty Beliefs and Technology Preferences

Description: All too often faculty are asked to implement technology into their teaching without the knowledge necessary to use the technology effectively. Due to the evolution of technology in everyday settings, students have come to expect to be engaged through technological means. This often creates undue stress on faculty members. The purpose of this study is to investigate technology integration by exploring the relationships between a faculty member’s technology preferences and educational beliefs. Through a mixed method, this study attempts to address the question of why faculty use the types of technology they do. More importantly, this study investigates if a faculty member’s educational beliefs have any influence on the technology they choose to use. Thirty-two medical, clinical, and healthcare faculty members participated in the study. They responded to a Teaching Perspectives Inventory (TPI) survey and a Technology Preferences survey with open-ended questions. Data analysis revealed multiple statistically significant findings between different beliefs and different types of technology. The results indicated that personal epistemic beliefs influence the types of technology faculty use. The technology choices faculty make are largely related to tools they are comfortable with and ones they believe effectively fit their teaching materials. The study also found statistically significant differences between age, gender, and reported technology use. It is suggested faculty development programs should consider faculty members’ educational beliefs and personal preferences when supporting faculty with their uses of technologies.
Date: May 2015
Creator: Faulkner, Christopher G.
Partner: UNT Libraries
open access

An Assessment of Uncommon Titanium Binary Systems: Ti-Zn, Ti-Cu, and Ti-Sb

Description: The current study focuses on phase stability and evolution in the titanium-zinc titanium-copper and titanium-antimony systems. The study utilized the Laser Engineering Net Shaping (LENS™) processing technique to deposit compositionally graded samples of three binary system in order to allow the assessment of phase stability and evolution as a function of composition and temperature the material is subjected to. Through LENS™ processing it was possible to create graded samples from Ti-xSb (up to 13wt%) and Ti-xCu (up to 16wt%). The LENS™ deposited gradient were solutionized, and step quenched to specific aging temperature, and the resulting microstructures and phase were characterized utilizing XRD, EDS, SEM, FIB and TEM. The Ti-Zn system proved incapable of being LENS™ deposited due to the low vaporization temperature of Zn; however, a novel processing approach was developed to drip liquid Zn onto Ti powder at temperatures above β transus temperature of Ti (882 ◦C) and below the vaporization temperature of Zn (907 ◦C). The product of this processing technique was characterized in a similar way as the graded LENS™ depositions. From measurements performed on Ti-Sb it seems that Sb could be a potential α stabilizer in Ti due to the presence of a mostly homogeneous α grains throughout the gradient; however, from XRD it can be understood that a titanium antimonide phase is present. From results obtained from the Ti-Zn samples, it can be surmised that the eutectoid reaction seems to be active, i.e. The eutectoid reaction is kinetically fast, as concluded by the presence of pearlitic structures. Finally, for the Ti-Cu system this work has been attempted to prove or disprove the existence of the Ti3Cu through the use of XRD and TEM SAD patterns. From XRD spectra collected there are peaks belonging to the Ti3Cu orthorhombic phase along with Ti2Cu and α-Ti phase. In …
Date: May 2015
Creator: Brice, David
Partner: UNT Libraries
open access

Exploring the College Pathways of Asian American Community College Students and the Model Minority Myth

Description: Contrary to the model minority myth that portrays Asian Americans as academic all-stars over-represented in elite four-year institutions, half of all Asian American college students do in fact attend community colleges, and many experience myriad challenges. This exploratory study investigated the community college pathways of Asian American community college students, the role of family and culture in shaping expectations for higher education, and participants’ perceptions of the model minority myth and the degree to which this myth influenced their college experiences. Institutional practices and policies, or lack thereof, that support the success of this highly diverse population were also studied. Purposeful sampling was used to gather a sample of 28 students, who self-identified as Asian American and attended one of the three largest community college districts located in North Texas. The sample included 16 males and 12 females, whose ages ranged from 18 to 49 years old, with a mean age of 24. Data collection involved a demographic questionnaire and semi-structured individual interviews. The participants represented 13 different ethnicities, and nine were members of more than one ethnic or racial group. Ten participants were foreign-born citizens, and all of the participants had at least one foreign-born parent. Qualitative data provided description rich information that shed light on the expectations, experiences, and views of Asian American community college students, a virtually unstudied population. Consistent with current literature on Asian American college students, the findings suggest many Asian American community college students struggle with tremendous cultural and familial pressures for succeeding academically, and many described their experiences with racial microaggressions related to model minority stereotypes that they perceived their peers and instructors to have held. Recommendations for policy and practice designed to improve educational outcomes for Asian American community college students are addressed.
Date: May 2015
Creator: Hamm, Amanda E.
Partner: UNT Libraries
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