Perceptions of Family Vacation and Family Cohesion and the Moderating Effects of Parenting Style (open access)

Perceptions of Family Vacation and Family Cohesion and the Moderating Effects of Parenting Style

Family cohesion, or emotional bonding, is important to family functioning. Shared activities such as family vacations offer opportunities for strengthening the family unit which can improve cohesion. Additionally, parenting style has direct influence on the family unit and family cohesion. This study’s purpose was to assess to what extent the perception of the family vacation experience predicted the perception of family cohesion and whether that relationship was moderated by parenting style. An online survey was conducted, resulting in 97 adult participants responding to items regarding their last family vacation, family cohesion, and parenting style. Using hierarchical multiple regression, a medium effect size was found for the predictive ability of a participant’s perception of their last family vacation on family cohesion. Findings also indicated a negative correlation between an authoritarian parenting style and perception of family cohesion, but a positive relationship between the interaction of family vacation experience and authoritarian parenting to family cohesion. Stronger predictive abilities were found for those with children in the 3-11 age group. Results may encourage parent and family educators to use family vacation as a tool in assisting families with the processes of building strong and cohesive families.
Date: May 2014
Creator: Kruenegel-Farr, Debbie S.
System: The UNT Digital Library
Product Management: the Decision Process (open access)

Product Management: the Decision Process

This thesis builds upon several theoretical ideas. The first of which is the anthropologists’ transition into the corporate context and the particular type of skills and value that someone with anthropological training can bring to operations management. As anthropology is relatively new and unfamiliar to corporations, anthropologists are often hired without explicit knowledge of how they will address organizational problems. Frequently, this incremental relationship building between the anthropologist and the organization leads to shifting project goals which come only after the anthropologist is able to reveal initial findings to someone who has the power to grant the anthropologist further access to employees and company information. This refocusing comes from a building of trust that is crucially important for the anthropologist’s ability to identify social issues, which is the anthropologist’s expertise. In order to develop the context of this project the following paragraphs will explain in more detail and expand into particular cases in which anthropologists have helped organizations to identify and manage social, organizational problems. As a relationship needs to be built between the anthropologist and the organization, here I argue that there needs to be continual relationship building between anthropological, design, and management theories to optimally solve organizational problems.
Date: May 2014
Creator: Pahl, Shane D.
System: The UNT Digital Library
The Changing Symbolic Images of the Trumpet: Bologna and Venice in the Seventeenth Century (open access)

The Changing Symbolic Images of the Trumpet: Bologna and Venice in the Seventeenth Century

The trumpet is among the most ancient of all musical instruments, and an examination of its history reveals that it has consistently maintained important and specific symbolic roles in society. Although from its origins this symbolic identity was linked to the instrument’s limited ceremonial and signaling function, the seventeenth century represents a period in which a variety of new roles and identities emerged. Bologna and Venice represent the two most important centers for trumpet writing in Italy during the seventeenth century. Because of the differing ideologies at work in these cities, two distinctive symbolic images of the instrument and two different ways of writing for it emerged. The trumpet’s ecclesiastic role in Bologna and its participation in Venetian opera put the instrument at the service of two societies, one centered around the Church, and another around a more permissive state. Against the backdrop of the social and political structures in Venice and Bologna, and through an examination of its newly-emerging musical roles in each city, the trumpet’s changing identities during a most important point in the history of the instrument will be examined.
Date: May 2014
Creator: Karp, Jamie Marie
System: The UNT Digital Library
Preschool Teachers’ Constructions of Early Reading (open access)

Preschool Teachers’ Constructions of Early Reading

Much of the current discourse surrounding the practice of early reading has emerged from policies that dictate the definition and means by which reading is taught and by which reading success is measured. Although this discourse directly influences the work of preschool teachers, little is known about what preschool teachers think about early reading and how they develop these understandings or constructions. Research concerning preschool teachers’ constructions is useful because of the potential influence on teachers' decisions and classroom behaviors. The purpose of this study is to better understand preschool teachers’ constructions concerning early reading and the process of learning to read. Six preschool teachers, with a variety of personal, educational, and professional experiences, from four diverse early childhood programs in the North Texas area were interviewed over a nine-month period during which each participant was interviewed for approximately three hours. Through systematic, inductive analysis, three themes were identified under an overarching theme of the interdependent and relational nature of early reading influences: out-of-school interactions, in-school interactions, and interactions with text. Without exception, these teachers referred to their life experiences as influencing their approach to teaching in general and to teaching reading in particular. The goals these preschool teachers had …
Date: May 2014
Creator: Walker, Karen Elledge
System: The UNT Digital Library
Academic Advising Professional Characteristics and Standards: Do Academic Advisors Follow Recognized Professional Standards in Their Work? (open access)

Academic Advising Professional Characteristics and Standards: Do Academic Advisors Follow Recognized Professional Standards in Their Work?

There were two main purposes of this quantitative study. The first purpose was to identify characteristics associated with the selected sample of academic advisors that comprise study. Secondly, the study sought to determine how well work related activities of a selected population of academic advisors correlate with professional characteristics constructs and professional standards constructs of academic advising as a profession. The study used Habley’s (1986) characteristics of a profession to derive the studies professional characteristic construct, education activities, research activities, and professional development activities as it relates to a selected group of academic advisors work related activities. The studies professional standards construct was derived from five Council for the Advancement of Standards (CAS) professional standards for academic as it relates to a selected group of academic advisors work related activities. The study of 78 out of 210 identified full-time academic advisors at two-and four-year public colleges and universities in the North Texas Region utilized a multidimensional researcher-developed Web survey instrument designed to measure professional standards and characteristic within the field of academic advising. Study results reinforced current criticism of research and education activities within the field of academic advising showing that the lack of scholarly research and education activities among …
Date: May 2014
Creator: Shelton, Kiesha R.
System: The UNT Digital Library
Targeted and Metal-loaded Polymeric Nanoparticles As Potential Cancer Therapeutics (open access)

Targeted and Metal-loaded Polymeric Nanoparticles As Potential Cancer Therapeutics

Polymeric nanoparticles were designed, synthesized, and loaded with metal ions to explore the therapeutic potential for transition metals other than platinum found in cisplatin. Nanoparticles were synthesized to show the potential for polymer based vectors. Metal loading and release were characterized via Inductively Coupled Plasma Mass Spectrometry (ICP MS), Energy Dispersive X-Ray Spectroscopy (EDX), X-Ray Photoelectron Spectroscopy (XPS), and Elemental Analysis. Targeting was attempted with the expectation of observed increased particle uptake by cancer cells with flow cytometry and fluorescence microscopy. Results demonstrated that a variety of metals could be loaded to the nano-sized carriers in an aqueous environment, and that the release was pH-dependent. Expected increased targeting was inconsistent. The toxicity of these particles was measured in cancer cells where significant toxicity was observed in vitro via dosing of high copper-loaded nanoparticles and slight toxicity was observed in ruthenium-loaded nanoparticles. No significant toxicity was observed in cells dosed with metal-free nanoparticles. Future research will focus on ruthenium loaded polymeric nanoparticles with different targeting ligands dosed to different cell lines for the aim of increased uptake and decreased cancer cell viability.
Date: May 2014
Creator: Harris, Alesha N.
System: The UNT Digital Library
Processing and Characterization of Nickel-Carbon Base Metal Matrix Composites (open access)

Processing and Characterization of Nickel-Carbon Base Metal Matrix Composites

Carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are attractive reinforcements for lightweight and high strength metal matrix composites due to their excellent mechanical and physical properties. The present work is an attempt towards investigating the effect of CNT and GNP reinforcements on the mechanical properties of nickel matrix composites. The CNT/Ni (dry milled) nanocomposites exhibiting a tensile yield strength of 350 MPa (about two times that of SPS processed monolithic nickel ~ 160 MPa) and an elongation to failure ~ 30%. In contrast, CNT/Ni (molecular level mixed) exhibited substantially higher tensile yield strength (~ 690 MPa) but limited ductility with an elongation to failure ~ 8%. The Ni-1vol%GNP (dry milled) nanocomposite exhibited the best balance of properties in terms of strength and ductility. The enhancement in the tensile strength (i.e. 370 MPa) and substantial ductility (~40%) of Ni-1vol%GNP nanocomposites was achieved due to the combined effects of grain refinement, homogeneous dispersion of GNPs in the nickel matrix, and well-bonded Ni-GNP interface, which effectively transfers stress across metal-GNP interface during tensile deformation. A second emphasis of this work was on the detailed 3D microstructural characterization of a new class of Ni-Ti-C based metal matrix composites, developed using the laser engineered net …
Date: May 2014
Creator: Borkar, Tushar Murlidhar
System: The UNT Digital Library
Ddos Defense Against Botnets in the Mobile Cloud (open access)

Ddos Defense Against Botnets in the Mobile Cloud

Mobile phone advancements and ubiquitous internet connectivity are resulting in ever expanding possibilities in the application of smart phones. Users of mobile phones are now capable of hosting server applications from their personal devices. Whether providing services individually or in an ad hoc network setting the devices are currently not configured for defending against distributed denial of service (DDoS) attacks. These attacks, often launched from a botnet, have existed in the space of personal computing for decades but recently have begun showing up on mobile devices. Research is done first into the required steps to develop a potential botnet on the Android platform. This includes testing for the amount of malicious traffic an Android phone would be capable of generating for a DDoS attack. On the other end of the spectrum is the need of mobile devices running networked applications to develop security against DDoS attacks. For this mobile, phones are setup, with web servers running Apache to simulate users running internet connected applications for either local ad hoc networks or serving to the internet. Testing is done for the viability of using commonly available modules developed for Apache and intended for servers as well as finding baseline capabilities of …
Date: May 2014
Creator: Jensen, David
System: The UNT Digital Library
Homeless Abjection and the Uncanny “Place” of the National Imagination (open access)

Homeless Abjection and the Uncanny “Place” of the National Imagination

This project examines the effects of the homeless body and the threat of homelessness on constructing a national imaginary that relies on the trope of locatability for recognition as a citizen-subject. The thesis argues that homelessness, the oft-figured specter of public space, functions as bodies that are “pushed out” as citizen-subjects due to their inability maintain both discursive and material location. I argue that figures of “home” rely on the ever-present threat of dislocation to maintain a privileged position as the location of the consuming citizen-subject. That is, the presence of the dislocated homeless body haunts the discursive and material construction of home and its inhabitants. Homeless then becomes the uncanny inverse of home, functioning as an abjection that reifies home “place” as an arbiter of recognition in a neoliberal national imaginary. The chapters proceed to examine what some consider homeless “homes,” focusing on the reduction of the homeless condition to a place of inhabitance, or the lack thereof. This attempt to locate the homeless body becomes a symptom of the desire for recognition as a placed body. The thesis ends on a note of political possibility, figuring the uncanny as a rupture that evacuates language of signification and opens …
Date: May 2014
Creator: Sloss, Eric J.
System: The UNT Digital Library
Further Evaluation of Blocked Trials to Teach Intraverbal Conditional Discriminations: Effects of Criterion-level Probes (open access)

Further Evaluation of Blocked Trials to Teach Intraverbal Conditional Discriminations: Effects of Criterion-level Probes

Individuals with autism often have deficient intraverbal repertoires. Previous research has found success in using a blocked trials procedure to facilitate discrimination training. A previous study (unpublished) from our laboratory extended this procedure to intraverbal training. The current study continued this line of research by exploring the outcomes of probing the criterion performance more frequently. Three children with autism, ages 7-13, participated. Eight question pairs were taught. One question was presented repeatedly until a specified number of consecutive correct responses occurred, then the other question was presented. Contingent on specific mastery criteria, the trial blocks were faded into smaller blocks until the questions were presented in quasi-random order. Between each step, a criterion probe was conducted to determine if further steps were necessary. The procedure has been successful for two of the three participants. Criterion probe performance showed that not all teaching steps were needed every time. The procedure may have facilitated acquisition over time, because the number of trials to mastery generally decreased over successive targets.
Date: May 2014
Creator: Haggar, Jennifer Lynn
System: The UNT Digital Library
Toward a Grounded Theory of Community Networking (open access)

Toward a Grounded Theory of Community Networking

This dissertation presents a preliminary grounded theory of community networking based on 63 evaluations of community networking projects funded by the National Telecommunications and Information Administration’s Technology Opportunities Program (TOP) between 1994 and 2007. The substantive grounded theory developed is that TOP projects differed in their contribution to positive outcomes for intended disadvantaged community beneficiaries based on the extent and manner in which they involved the disadvantaged community during four grant process phases: partnership building, project execution, evaluation, and close-out. Positive outcomes for the community were facilitated by using existing communication channels, such as schools, to connect with intended beneficiaries; local financial institutions to provide infrastructure to support local trade; and training to connect community members to jobs. Theoretical contributions include situating outcomes for disadvantaged communities within the context of the grant process; introducing the “vulnerable community” concept; and identifying other concepts and properties that may be useful in further theoretical explorations. Methodological contributions include demonstrating grounded theory as a viable method for exploring large text-based datasets; paving the way for machine learning approaches to analyzing qualitative data; and illustrating how project evaluations can be used in a similar fashion as interview data. Practical contributions include providing information to guide …
Date: May 2014
Creator: Masten-Cain, Kathryn
System: The UNT Digital Library
Forgotten Glory - Us Corps Cavalry in the ETO (open access)

Forgotten Glory - Us Corps Cavalry in the ETO

The American military experience in the European Theater of Operations during the Second World War is one of the most heavily documented topics in modern historiography. However, within this plethora of scholarship, very little has been written on the contributions of the American corps cavalry to the operational success of the Allied forces. The 13 mechanized cavalry groups deployed by the U.S. Army served in a variety of roles, conducting screens, counter-reconnaissance, as well as a number of other associated security missions for their parent corps and armies. Although unheralded, these groups made substantial and war-altering impacts for the U.S. Army.
Date: May 2014
Creator: Nance, William Stuart
System: The UNT Digital Library
Identifying Opportunities for the Revitalization of Downtown Bloomsburg (open access)

Identifying Opportunities for the Revitalization of Downtown Bloomsburg

American downtowns were once the place to see and be seen, but the introduction of the shopping mall in the late 1950s challenged this notion and gave the American consumer a different place to spend their time and money. The prevalence of shopping malls has slowly been declining across the country since the beginning of this century, leaving room in the American retail landscape for downtowns to reclaim their status as community and retail centers. Towns across the U.S. are turning to national and local organizations to assist them in revitalizing their downtown districts. Downtown Bloomsburg, Inc. (DBI), a non-profit organization located in the small town of Bloomsburg, Pennsylvania, has been working since 2006 to revitalize its town’s downtown and main street area. The unique findings presented here were derived from a four month long ethnographic study of downtown Bloomsburg merchants and shoppers and are meant to be used by DBI as a supplemental guide for further revitalization of the town.
Date: May 2014
Creator: Schlieder, Victoria Mae
System: The UNT Digital Library
Design and Application of a New Planar Balun (open access)

Design and Application of a New Planar Balun

The baluns are the key components in balanced circuits such balanced mixers, frequency multipliers, push–pull amplifiers, and antennas. Most of these applications have become more integrated which demands the baluns to be in compact size and low cost. In this thesis, a new approach about the design of planar balun is presented where the 4-port symmetrical network with one port terminated by open circuit is first analyzed by using even- and odd-mode excitations. With full design equations, the proposed balun presents perfect balanced output and good input matching and the measurement results make a good agreement with the simulations. Second, Yagi-Uda antenna is also introduced as an entry to fully understand the quasi-Yagi antenna. Both of the antennas have the same design requirements and present the radiation properties. The arrangement of the antenna’s elements and the end-fire radiation property of the antenna have been presented. Finally, the quasi-Yagi antenna is used as an application of the balun where the proposed balun is employed to feed a quasi-Yagi antenna. The antenna is working in the S-band radio frequency and achieves a measured 36% fractional bandwidth for return loss less than -10 dB. The antenna demonstrates a good agreement between its measurement …
Date: May 2014
Creator: Mohamed, Younes
System: The UNT Digital Library
Effects and Mediation of Child-centered Play Therapy on Young Children Who Are Anxious (open access)

Effects and Mediation of Child-centered Play Therapy on Young Children Who Are Anxious

Anxiety is one of the most pervasive childhood disorders, with a poor prognosis if left untreated. Traditional methods of treating anxiety have been less effective with young children. Based on theoretical assumptions regarding the potential effectiveness of child-centered play therapy (CCPT) as a treatment approach, I sought to explore the effects and mediating factors of CCPT on young children with symptoms of anxiety. Fifty-three participants between the ages of 6 to 8 years old were recruited from four elementary schools, including 36 males and 17 females. Of participants, 11 were African American, 24 were Caucasian, 10 were Hispanic/Latino, one was Asian, and seven were biracial. Twenty-five participants were randomly assigned to an experimental group receiving a mean of 15 sessions of individual CCPT, and 28 participants were assigned to an 8-session active control group. Five factorial analyses of variance (ANOVA) were conducted applying an alpha level of .05 for interpretation of statistical significance and Cohen’s d to assess practical significance. ANOVA results indicated a statistically significant interaction with a large effect size on Total Anxiety score of the Revised Children’s Manifest Anxiety Scale-2nd edition (p = .013, d = .715). Subscale ANOVA results indicated a statistically significant interaction effect with …
Date: May 2014
Creator: Stulmaker, Hayley L.
System: The UNT Digital Library
The Value of Ties: Impact of Director Interlocks on Acquisition Premium and Post-acquisition Performance (open access)

The Value of Ties: Impact of Director Interlocks on Acquisition Premium and Post-acquisition Performance

Mergers and acquisitions (M&A) evolved as alternative governance structures for firms seeking to combine resources with other firms, access larger markets, or acquire strategic assets. In spite of managers’ enthusiasm about the practice, studies show mixed results regarding post-acquisition performance of acquiring firms. The impact of acquisitions on the performance of acquiring firms has therefore remained inconclusive. A few reasons for this have been suggested and recent meta-analytic research efforts indicate that studies in M&A may have ignored variables that have significant effects on post-acquisition performance. In a bid to extend the literature on M&A and identify cogent variables that impact on acquisition performance, this dissertation draws on social network theory to advance a proposition for the value-of-ties. This was done by examining the impact of directorate interlocks on acquisitions specifically and organizational strategy in general. A non-experimental cross-sectional study of 98 interlocked directorate companies simultaneously involved in acquisitions was conducted. Several multiple regression analyses were conducted and the results obtained suggest that there is a positive linear relationship between director interlocks and post-acquisition performance and that to some extent this relationship is moderated by acquisition experience. The study also showed that director interlocks have a negative linear relationship with …
Date: May 2014
Creator: Lawani, Uyi
System: The UNT Digital Library
Community College Student Success in Developmental Mathematics Courses: a Comparison of Four Instructional Methods (open access)

Community College Student Success in Developmental Mathematics Courses: a Comparison of Four Instructional Methods

The student success rates for three developmental mathematics courses (prealgebra, elementary algebra, and intermediate algebra) taught through four instructional methods (lecture, personalized system of instruction [PSI], hybrid, and online) were examined. The sample consisted of 9,211 students enrolled in a large Texas community college from fall 2009 through spring 2011. Student success was defined as a grade of C or better. Chi-square tests were used to compare the three developmental mathematics courses success rates. Statistically significant differences in student success were found between all four methods of instruction for all three mathematics courses (prealgebra: χ2 [df = 3] = 107.90, p < 0.001; elementary algebra: χ2 [df = 3] = 88.39, p < 0.001; intermediate algebra χ2 [df = 3] = 254.18, p < 0.001). Binary logistic regression modeling was used to determine to what extent age, gender, ethnicity, residency, Pell eligibility and mode of instruction accounted for the community college students’ course success for each of the three developmental mathematics courses. For prealgebra, the independent variables of gender, race, age, residency, and mode of instruction made statistically significant contributions to the model (χ2 [df = 14, n = 1,743] = 159.196, p < .001; Nagelkerke R2 = .119), with …
Date: May 2014
Creator: Keller, Judith
System: The UNT Digital Library
Lipodystrophy, Body Image and Depression in Hiv Positive Black Women (open access)

Lipodystrophy, Body Image and Depression in Hiv Positive Black Women

Human immunodeficiency virus (HIV) seropositive men on highly active antiretroviral therapy treatment (HAART) who experience lipodystrophy syndrome (LD), a side effect of HAART, rate themselves as more depressed than those who did not experience LD(Crane et al., 2008). Furthermore, men who rated their LD symptoms as more severe also scored higher on depression measures than men who experienced less severe symptoms. It is unknown these findings can be generalized to other groups of HIV positive individuals. The current study seeks to fill this gap in the literature by exploring the associations between LD, body image, and depressive symptoms in an archival sample of HIV positive Black women. This study aims to describe the body changes associated with HAART in a Black female sample and explore the relationships between LD, body image, depression, and quality of life. Findings supported past research indicating a correlation between depression and poor body image but did not indicate that body image quality of life moderated the relationship between perceived body changes and depression. Results expanded on the literature by indicating that perceived body changes may be more distressing to Black women with HIV than objective changes. Lastly, findings suggested that Black women may have inaccurate …
Date: May 2014
Creator: Carr, Jarice N.
System: The UNT Digital Library
Increasing the Players: Expanding the Bilateral Relationship of Conflict Management (open access)

Increasing the Players: Expanding the Bilateral Relationship of Conflict Management

This research seeks to explore the behavior of international and regional organizations within conflict management. Previous research on conflict management primarily examines UN peacekeeping as the primary actor and lumps all non-UN actors into a single category. I disaggregate this category, examining how international and regional organizations interact when deciding to establish a peace mission, coordinate a peace mission with multiple organizations, and finally, how this interaction affects the success of peace missions. I propose a collective action theoretical framework in which organizations would rather another actor undertake the burden and costs of implementing a peace mission. I find the United Nations is motivated to overcome the collective action problem through an increase in the severity of the conflict. Regional organizations are motivated to establish a peace mission as the economic and political salience of the conflict increases, increasing the possibility of the regional organization acquiring club goods for its member states. The presence of a regional hegemon within a regional organization also significantly increases the likelihood of an organization both establishing a peace mission and taking on the primary role when coordinating a joint mission. I argue this is because a regional hegemon allows the organization to more easily …
Date: May 2014
Creator: Stull, Emily A.
System: The UNT Digital Library
Fundamental Issues in Support Vector Machines (open access)

Fundamental Issues in Support Vector Machines

This dissertation considers certain issues in support vector machines (SVMs), including a description of their construction, aspects of certain exponential kernels used in some SVMs, and a presentation of an algorithm that computes the necessary elements of their operation with proof of convergence. In its first section, this dissertation provides a reasonably complete description of SVMs and their theoretical basis, along with a few motivating examples and counterexamples. This section may be used as an accessible, stand-alone introduction to the subject of SVMs for the advanced undergraduate. Its second section provides a proof of the positive-definiteness of a certain useful function here called E and dened as follows: Let V be a complex inner product space. Let N be a function that maps a vector from V to its norm. Let p be a real number between 0 and 2 inclusive and for any in V , let ( be N() raised to the p-th power. Finally, let a be a positive real number. Then E() is exp(()). Although the result is not new (other proofs are known but involve deep properties of stochastic processes) this proof is accessible to advanced undergraduates with a decent grasp of linear algebra. Its …
Date: May 2014
Creator: McWhorter, Samuel P.
System: The UNT Digital Library
Opening Doors for Excellent Maternal Health Services: Perceptions Regarding Maternal Health in Rural Tanzania (open access)

Opening Doors for Excellent Maternal Health Services: Perceptions Regarding Maternal Health in Rural Tanzania

The worldwide maternal mortality rate is excessive. Developing countries such as Tanzania experience the highest maternal mortality rates. The continued exploration of issues to create ease of access for women to quality maternal health care is a significant concern. A central strategy for reducing maternal mortality is that every birth be attended by a skilled birth attendant, therefore special attention was placed on motivations and factors that might lead to an increased utilization of health facilities. This qualitative study assessed the perceptions of local population concerning maternal health services and their recommendations for improved quality of care. The study was conducted in the Karatu District of Tanzania and gathered data through 66 in-depth interviews with participants from 20 villages. The following components were identified as essential for perceived quality care: medical professionals that demonstrate a caring attitude and share information about procedures; a supportive and nurturing environment during labor and delivery; meaningful and informative maternal health education for the entire community; promotion of men’s involvement as an essential part of the system of maternal health; knowledgeable, skilled medical staff with supplies and equipment needed for a safe delivery. By providing these elements, the community will gain trust in health facilities …
Date: May 2014
Creator: McLendon, Pamela Ann
System: The UNT Digital Library
Shall We Dance? Teaching Parents the Communication Dance to Enhance Generalized Communication in Their Children (open access)

Shall We Dance? Teaching Parents the Communication Dance to Enhance Generalized Communication in Their Children

Children diagnosed with autism exhibit deficits in communication that impact their ability to control their immediate environment. Recent research on mand training has been criticized for producing a limited number of mand topographies over a long span of time with limited generalization to novel environments. There is a body of research, however, that successfully establishes larger repertoires. Training parents as change agents may mediate generalization by teaching under naturally maintaining contingencies. Additional effects of parent training may reduce parent reports of stress, increase favorable quality of parent-child interactions, and increase reports of parental self-efficacy. The current study evaluated the effects of a generalized training framework to teach parents how to target generalized mands and expand their child’s communicative topographies. The effects of the training were evaluated using a non-concurrent multiple baseline across participants and skills. Results indicated that parents were able to effectively teach their child to mand for a variety of items and events and to substantially increase the number of different mand topographies and expand the topographies the child emitted. Parents were observed to have higher overall confidence and lower overall stress following intervention. The current study builds on previous research on generalized teaching strategies for parents that …
Date: May 2014
Creator: Baker, Jacqueline R.
System: The UNT Digital Library
Factors Related to Meeting Physical Activity Guidelines in College Students: a Social Cognitive Perspective (open access)

Factors Related to Meeting Physical Activity Guidelines in College Students: a Social Cognitive Perspective

Engaging in regular physical activity is important for maintaining and improving health. Unfortunately, most college students fail to meet the recommendations for both aerobic and muscle-strengthening physical activity guidelines (PAGs). Psychosocial factors described within the social cognitive theory are related to the acquisition and retention of physical activity behaviors. The purpose of this study was to examine the relations of gender, self-efficacy, outcome expectancies, and social support with college students meeting aerobic, muscle-strengthening and both PAGs. Participants (N = 396) completed online questionnaires assessing their physical activity behaviors, exercise self-efficacy, outcome expectancies, and social support. Self-reported physical activity was classified as meeting / not meeting PAGs. Using gender, exercise self-efficacy, outcome expectancies, and social support as predictors, separate logistic regressions were used to examine their relations with the three PAG classifications. Analyses revealed that being male and level of social support increased the odds of meeting muscle-strengthening PAGs, but students’ level of self-efficacy and outcome expectations increased the odds of meeting all three PAG classifications. These findings indicate that interventions designed to increase self-efficacy and outcome expectancy may be beneficial for increasing college students’ physical activity for meeting the PAGs. Promotion of muscle-strengthening activities targeted at young women is also …
Date: May 2014
Creator: Farren, Gene L.
System: The UNT Digital Library
Thematic and Formal Narrative in Respighi’s Sinfonia Drammatica (open access)

Thematic and Formal Narrative in Respighi’s Sinfonia Drammatica

Respighi’s scarcely-known orchestral work Sinfonia Drammatica lives up to its title by evoking a narrative throughout the course of its three movements. In this dissertation, I argue how the work’s surface, subsurface, and formal elements suggest this narrative which emerges as a cycle of rising and falling dramatic tension. I explain how Respighi constructs the work’s narrative in the musical surface through a diverse body of themes that employ three motives of contour. The disposition and manipulation of these motives within the themes suggest frequent fluctuations of the level of conflict throughout the symphony as a whole. To show the involvement of musical forms in the work’s narrative, I employ an approach which integrates harmony and thematic behavior. I utilize analytical methods from the current Formenlehre, including terms from James Hepokoski and Warren Darcy’s sonata deformation theory and William Caplin’s theories of formal functions to elucidate ties between the forms of the Sinfonia Drammatica’s movements and those of conventional sonata forms of the late-eighteenth century. This dissertation also employs Heinrich Schenker’s theories of structures, voice leading, and reduction to illustrate large-scale aspects of the Sinfonia Drammatica’s narrative. The resulting analyses show Respighi’s elaborations of common structural paradigms which serve to …
Date: May 2014
Creator: Amato, Alexander G.
System: The UNT Digital Library