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open access

Theory of ordering transformations in metals and minerals

Description: This dissertation presents an investigation of ordering in FCC based systems using the pair potential approximation in the ground state and mean field limits. The theoretical approach is used to explain the occurrence of observed equilibrium phases and characteristics of thermodynamic instabilities, in particular, spinodal ordering and decomposition. It is shown that the stability of non-integer domain sizes in long period superstructures such as Al{sub 3}Ti and Ag{sub 3}Mg may result from the … more
Date: July 1, 1991
Creator: Lindsey, Timothy Francis
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

College Readiness and Dual Credit Participation of Alternative High School Students

Description: The purpose of this study was to explore the extent to which alternative schools add value to the college readiness of their students, as well as to measure the capacity of alternative school students to successfully complete dual credit courses while enrolled at the alternative school. This mixed methods study utilized an exploratory approach with a descriptive research design to explore the extent to which alternative schools produce college-ready students. The Texas Success Initiative Asse… more
Date: December 2017
Creator: Bradley, Jeffrey James
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Return to Sport: Improving Athletes' Confidence and Mindset Post-ACL Surgery

Description: This study explored the impact of three psychological interventions over seven weeks - goal setting (GS), GS and imagery (IM), and GS and mindful self-compassion (MSC) - on 20 athletes' (Mage = 16.75 years) pain, cognitive appraisal, depression reinjury anxiety, psychological readiness to return to sport, and range of motion (ROM). IM and GS interventions have demonstrated initial effectiveness; however, no study has examined MSC in relation to post-ACL recovery. All athletes experienced signif… more
Date: December 2017
Creator: Sheinbein, Shelly Thurlo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Location Estimation and Geo-Correlated Information Trends

Description: A tremendous amount of information is being shared every day on social media sites such as Facebook, Twitter or Google+. However, only a small portion of users provide their location information, which can be helpful in targeted advertising and many other services. Current methods in location estimation using social relationships consider social friendship as a simple binary relationship. However, social closeness between users and structure of friends have strong implications on geographic dis… more
Date: December 2017
Creator: Liu, Zhi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

School System Improvement through Building Leadership, Adult Learning, and Capacity: A Consideration of Instructional Rounds as a Systemic Improvement Practice

Description: The problem of the study was determining the supportive conditions related to instructional rounds (rounds) to understand better what conditions may allow for sustained systemic improvement over time. Three Texas school districts were studied to understand the perceptions of district leaders, principals, teacher leaders, and teachers with regard to the sustainability of instructional rounds as a systemic improvement practice, the supportive conditions necessary for sustainability, the salient … more
Date: December 2017
Creator: Warnock, Teresa Georgeanne
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Practices that Influence Instructional Coaches' Perceptions of Effectiveness

Description: As instructional coaches are being implemented across the country, their purpose is reviewed, as well as which types of instructional coaching tend to have the most impact on teachers' instructional growth. In this study, I explored instructional coaching and coaches' perceived effectiveness as they work with teachers. A look at the effect of non-evaluative feedback with an instructional coach, and how that helps sustain teachers' pedagogical practice, is taken into consideration as coaches' … more
Date: December 2017
Creator: Koehler, Laura Yvette
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Non-Isothermal Laser Treatment of Fe-Si-B Metallic Glass

Description: Metallic glasses possess attractive properties, such as high strength, good corrosion resistance, and superior soft magnetic performance. They also serve as precursors for synthesizing nanocrystalline materials. In addition, a new class of composites having crystalline phases embedded in amorphous matrix is evolving based on selective crystallization of metallic glasses. Therefore, crystallization of metallic glasses and its effects on properties has been a subject of interest. Previous investi… more
Date: December 2017
Creator: Joshi, Sameehan Shrikant
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Effects of Multicultural Discussions and Supervisory Working Alliance on Multicultural Counseling Competence

Description: This study examined the influence of multicultural training, multicultural discussions in supervision, and the supervisory working alliance on multicultural counseling competence. The sample consisted of 57 doctoral counseling interns, doctoral graduate students and post-doctoral students in counseling and clinical psychology. Participants completed several instruments including a demographic questionnaire, the Supervisory Working Alliance Inventory - Trainee, and the Multicultural Counseling… more
Date: December 2017
Creator: Carr, Jarice N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

How Does It Feel to be Creative? A Phenomenological Investigation of the Creative Experience in Kinetic Places

Description: How does it feel to be creative? Such a question, when approached from a phenomenological perspective, reveals new understandings about the embodied experience of creativity, and how it feels as it is being lived. This investigation begins with a provocative contrast of two environments where creativity is thought to manifest itself: school art classrooms, where creativity is often legislated from an authority figure, and New Orleans Second Line parades, where creativity is organically and kin… more
Date: December 2017
Creator: Bartholomee, Lucy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Supportive Systems for Building Capacity of the Elementary Instructional Coach

Description: The purpose of this qualitative case study was to examine the systems in place to build the capacity of elementary instructional coaches in a fast-growth district. Through syntheses of research from educational scholars, the conceptual framework was developed with a focus on building capacity of instructional coaches in an ever-changing environment of fast-growth through the lens of professional learning communities, human and social capital, and support from district and campus administration.… more
Date: December 2017
Creator: Fiori, Christy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Modeling of High Strain Rate Compression of Austenitic Shape Memory Alloys

Description: Shape memory alloys (SMAs) exhibit the ability to absorb large dynamic loads and, therefore, are excellent candidates for structural components where impact loading is expected. Compared to the large amount of research on the shape memory effect and/or pseudoelasticity of polycrystalline SMAs under quasi-static loading conditions, studies on dynamic loading are limited. Experimental research shows an apparent difference between the quasi-static and high strain rate deformation of SMAs. Research… more
Date: December 2017
Creator: Yu, Hao
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Understanding the Perceptions and Indications of the Goals and Unique Aspects of the Foundations for Success (FFS) Curriculum Model: A Case Study in a North Texas Private Preschool

Description: This quantitative and qualitative case study examined the educators' perceptions of both the goals and unique aspects of the foundations for success (FFS) curriculum model. Specifically, this study was designed to explain the experiences of 55 early childhood educators and administrators who all had similar exposure to the FFS curriculum model. This study sought to understand the educators' perceptions of the specific goals of using pertinent curriculum and instruction terminology and the paral… more
Date: December 2017
Creator: Jackey, Lisa
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Potential of Misdiagnosis of High IQ Youth by Practicing Mental Health Professionals: A Mixed Methods Study

Description: The difficulty of distinguishing between genuine disorder and characteristics that can be attributed to high IQ increases the likelihood of diagnostic error by mental health practitioners. This mixed methods study explores the possibility of misdiagnosis of high IQ youth by mental health professionals. Participants were private practice mental health professionals who read case study vignettes illustrating high IQ youth exhibiting characteristics associated with their population. Participants t… more
Date: December 2017
Creator: Bishop, James
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Counselors Explore their Attachment Organizations: An Interpretative Phenomenological Analysis

Description: This study explored participants' experiences of being interviewed with the Adult Attachment Interview as a means of supporting counselor self-awareness and fostering effective counselor-client working alliances. A sample of first-year counselor education doctoral students (n = 7) completed an AAI interview and feedback session. Participants completed five reflective journals over three weeks and explored their experiences in individual, semi-structured interviews. Data were analyzed according … more
Date: December 2017
Creator: Spellings, Maria
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Co-Occurrence of Rape Myth Acceptance and Intolerant Attitudes in a Military Sample

Description: Sexual trauma within the military is a widespread issue, and rape myth acceptance has been shown to contribute to its prevalence. Given that the military culture has been shown to lend itself to hypermasculinity and traditional gender role adherence, both of which facilitate aggression toward women, this effect warrants investigation within a military sample. The present study replicated and expanded upon Aosved and Long's (2006) study examining 85 veteran and active duty military members' resp… more
Date: December 2017
Creator: Holtz, Pamela M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

African American Student Placement in Disciplinary Alternative Education Programs

Description: The purpose of this study was to determine the relationship (predicative capability) between selected variables, specifically, African American student enrollment, teacher ethnicity, and urban or rural district classification and the number of African American student placements in a disciplinary alternative education program (DAEP). The study used a non-experimental ex post facto design. Archival data from the Texas Education Agency were used to identify Texas schools that sent African Ameri… more
Date: December 2017
Creator: Foss, Ivy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Investigating Factors that Affect Faculty Attitudes towards Participation in Open Access Institutional Repositories

Description: Open access institutional repositories (OA IRs) are electronic systems that capture, preserve, and provide access to the scholarly digital work of an institution. As a new channel of scholarly communications IRs offer faculty a new way to disseminate their work to a wider audience, which in turn can increase the visibility to their work and impact factors, and at the same time increase institutions prestige and value. However, despite the increased popularity of IRs in numbers, research shows … more
Date: December 2017
Creator: Tmava, Ahmet Meti
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Trends in Special Education Due Process Hearings in Texas from 2010-2015: School, Parent, and Social Justice Issues that Inform a Principal's Decision-Making

Description: This study explores all due process hearings that occurred in Texas public school districts from 2010-2015. Special attention was paid to the reasons for the hearings within the legal reports addressed and their outcomes. The study was conducted using a quantitative approach involving a legal document content analysis of due process hearings to select the participants to be interviewed with a qualitative semi-structured interview protocol. Following this process, nine participants from one dist… more
Date: December 2017
Creator: Poton, Marcy Rose
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Influence of Disease Mapping Methods on Spatial Patterns and Neighborhood Characteristics for Health Risk

Description: This thesis addresses three interrelated challenges of disease mapping and contributes a new approach for improving visualization of disease burdens to enhance disease surveillance systems. First, it determines an appropriate threshold choice (smoothing parameter) for the adaptive kernel density estimation (KDE) in disease mapping. The results show that the appropriate threshold value depends on the characteristics of data, and bandwidth selector algorithms can be used to guide such decisions a… more
Date: December 2017
Creator: Ruckthongsook, Warangkana
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Effect of Child Parent Relationship Therapy (CPRT) with Adoptive Parents of Preadolescents: A Pilot Study

Description: Older adopted children and their families often express high need for support for attachment and trauma related concerns. Post-adoption mental health intervention focused on enhancing the parent-child relationship among adoptive parents and adoptees is essential for fostering placement permanency among these families. This single group pilot study explored the effect of Child-Parent Relationship Therapy (CPRT) for adoptive parents of preadolescents who reported attachment related concerns, stre… more
Date: December 2017
Creator: Swan, Alyssa
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Examination of a Bi-Directional Relationship between Urgency and Alcohol Use

Description: The proposed study examined whether negative urgency and positive urgency are dynamic traits that hold bi-directional relationships with binge and prolonged alcohol use across time. Individuals between the ages of 18-30 were recruited from Amazon Mechanical Turk (MTurk; n = 179) and university student (n = 66) pools. Participants completed three batteries of self-report assessments approximately 30 days apart, each containing measures assessing negative and positive urgency, as well as drinking… more
Date: December 2017
Creator: Blackledge, Sabrina M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Wearing the Inside Out: The Effects of Exogenous Oxytocin, Reading, and Stress on the Expression of Empathy for Victims of Trauma

Description: Considerable psycho-physiological research on empathy examines biological structures such as the hypothalamic-pituitary-adrenal axis (HPA-axis) and oxytocin systems as efficacious methods for strengthening positive emotional responses. This study recruited 76 adult participants (54 female, 23 male) for the purpose of evaluating the effects oxytocin and fiction reading have on empathetic responses. Participants completed a measure of trauma and received either intranasal oxytocin, a story create… more
Date: December 2017
Creator: Seddio, Kaylee Rae
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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