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 American students to a DAEP during the 2013-2014 school year. Archival data from the Texas Education Agency were also used to identify African American student enrollment and teacher ethnicity for the selected school districts. Finally, archival data from the Texas Department of Agriculture were used to identify district classifications of urban or rural. Participants in this study consisted of 187 school districts that placed African American students in a DAEP during the 2013-2014 school year. Based on the findings, teacher ethnicity and African American student enrollment are statistically significant contributions to African American student placement in a DAEP. Urban or rural district classification is not a statistically significant predictor in the same placements. Results of this study add to existing literature by confirming that there is an overrepresentation of African American student …

The intention of this thesis is to identify and analyze the precise shift from an exploitative archetype to an empowered representation of women warriors, to identify the arena in which male and female characters are given equal agency in the context of war, and finally explore the key characteristics that make up an empowered female hero. This thesis also addresses the sociocultural nature of the warrior woman archetype as it pertains to the current role of women in the military. The films analyzed in this thesis are all post 9/11 films; a fact that links them culturally to the wars in Iraq and Afghanistan. In recent years, numerous milestones have been reached for women in the armed services, especially for those women in combat positions. For the first time in American history women are being recognized for their active role as soldiers in combat. Therefore, it is valid to consider the correlation between seeing women as military professionals, fighting alongside male soldiers in these films, and the cultural impact of female combat soldiers. This aspect of the thesis also imbues the female just-warrior archetype with a legitimate history, mythology, and current cultural reference; which is essential to the visibility of …

This exploratory research focuses on identifying the roles and perspectives of community gardens in the Dallas area. Results from semi-structured interviews reveal the social and political makeup of the neighborhoods where the garden projects in this study are located. While these findings highlight the benefits of gardening in the city, they can also be contested spaces. In advocating for the proliferation of garden projects in the city, community organizations would benefit from understanding the nuances of garden initiatives and the way in which they are perceived by members of the garden, nearby residents, and policy makers.

The Replenishment cycle contains five works that allude to the experience of sleep, beginning with awake drowsiness and ending with the piece inspired by rapid eye movement (REM) sleep, titled Conceiving Realities. This last piece is an intermedia work composed for chamber ensemble, live painting with biofeedback, computer, and audiovisual processing. This critical essay describes the composition of Conceiving Realities within the context of the Replenishment cycle, followed by a thorough analysis of the research involved in the technological aspects of the piece, and finally, a description of the instrumentation, notation, intermedia elements, and technology comprising the work. Conceiving Realities uses a system of interactions between painting, biofeedback, music, and video, in which a painter wears brainwave and heartbeat sensors that send data to a computer patch processing the sound of an ensemble as the painter listens and creates the painting while responding to the music. This requires a passive biofeedback system in which the painter is focused on listening and painting. The computer uses the data to process existing sounds, instead of synthesizing new lines. The score blends elements of traditional notation, graphics, and guided improvisation; giving the performers some creative agency. This alludes to the way in which …

Observational learning (OL) occurs when an individual contacts reinforcement as a direct result of discriminating the observed consequences of other individuals' responses. Individuals with autism spectrum disorder (ASD) may have deficits in observational learning and previous research has demonstrated that teaching a series of prerequisite skills (i.e., attending, imitation, delayed imitation, and consequence discrimination) can result in observational learning. We sequentially taught these prerequisite skills for three young children with ASD across three play-based tasks. We assessed the direct and indirect effects of training by assessing OL before and after instruction across tasks and task variations (for two participants) during both in-vivo and video-model probes using a concurrent multiple-probe design. All participants acquired the prerequisite skills and demonstrated observational learning during probes of directly-trained tasks. Generalization results varied across participants. Observational learning generalized to one untrained task for one participant. For the other two participants, observational learning generalized to variations of the trained tasks but not to untrained tasks. Generalization additionally occurred during the in-vivo probes for both participants for whom we assessed this response. Implications of these findings, as well as directions for future research, are discussed.

One statement that we can make with absolute certainty in our current time is that wireless communication is now the standard and the de-facto type of communication. Cognitive radios are able to interpret the frequency spectrum and adapt. The aim of this work is to be able to predict whether a frequency channel is going to be busy or free in a specific time located in the future. To do this, the problem is modeled as a time series problem where each usage of a channel is treated as a sequence of busy and free slots in a fixed time frame. For this time series problem, the method being implemented is one of the latest, state-of-the-art, technique in machine learning for time series and sequence prediction: long short-term memory neural networks, or LSTMs.

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 that IRs remain thinly populated in large part due to faculty reluctance to participate. There have been studies on the topic of open access repositories with the focus on external factors (social or technological context) that affect faculty attitudes towards participation in IRs, and there is a lack of understanding of the internal factors and the psychology of the reluctance. The goal of this mix method study was to identify the overall factors that affect faculty attitudes towards participation in IRs and examine the extent to which these factors influenced faculty willingness to participate in IRs. First, from literature review and the Model of Factors Affecting Faculty Self-Archiving this study identified eleven factors that influenced faculty members' intention to participate in OA …

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 district were interviewed. Responses were then analyzed for themes and patterns using qualitative methods, and conclusions were drawn based on the data. The study found that campus and central office administrators believed socio-economic levels, lack of empathy shown to parents, and distrust contributed to parents' decisions to file due process complaints or litigation. They also believed that placement decisions influenced by student discipline, parent denial about the impact of the disability on children, and parent entitlement played a role. Lastly, the nine participants found that parent advocacy and communication were strong contributors to the amount of due process hearings held at Evergreen ISD.

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 about mapping parameters. Similar approaches are recommended for map-makers who are faced with decisions about choosing threshold values for their own data. This can facilitate threshold selection. Second, the study evaluates the relative performance of the adaptive KDE and spatial empirical Bayes for disease mapping. The results reveal that while the estimated rates at the state level computed from both methods are identical, those at the zip code level are slightly different. These findings indicate that using either the adaptive KDE or spatial empirical Bayes method to map disease in urban areas may provide identical rate estimates, but caution is necessary when mapping diseases in non-urban (sparsely populated) areas. This study contributes insights on the relative performance in terms of accuracy of visual representation and associated limitations. Lastly, the study contributes …

The environmental problems associated with the boom in hydraulic fracturing or "fracking," such as anthropogenic earthquakes and groundwater contamination, have motivated some citizens living in affected areas such as Denton, Texas to form movements with the goal of imposing greater regulation on the industry. As responses to an environmental threat that is localized and yet mobile, these anti-fracking movements must construct rhetorical appeals with complicated relationships to place. In this thesis, I examine the anti-fracking movement in Denton, Texas in a series of three rhetorical analyses. In the first, I compared fracking bans used by Frack Free Denton and State College, Pennsylvania to distinguish the argumentative claims that are dependent on the politics of place, and affect strategies localities must use in resisting natural gas extraction. In the second, I compare campaign strategies that use local identity as a way of invoking legitimacy, which reinforces narrative frameworks of environmental risk. In the third, I conduct and analyze interviews with anti-fracking leaders who described the narrative of their movement, which highlighted tensions in the rhetorical construction of a movement as local. Altogether, this thesis traces the rhetorical conception of place across the rhetoric of the anti-fracking movement in Denton, Texas, while …

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, stress in the parent-child relationship, and child behavior problems. Participants were 11 adoptive parents ages 25 to 64 (55% male; 91% couples; 100% married; 56% European American, 27% Asian, 9% Hispanic, and 9% Black American) with adoptees between the ages of 8 to 14 (56% male; 56% Hispanic, 33% European American, and 11% Black American). All child participants were adopted out of foster care. Data was collected at baseline, pretest, midtest, and posttest. Results from non-parametric Friedman test of differences across 4 points of measure indicated that CPRT demonstrated statistically significant improvement for the 3 outcome variables: parental empathy, child behavior, and parent child relationship stress. Specifically, results indicated that prior to receiving CPRT (baseline to pretest), parents demonstrated no change or worsening in functioning across all variables, whereas during the intervention phase findings showed …

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 frequency and binge behavior during the prior month. Latent variable cross-lagged panel models examined the effects of alcohol use from the previous month on negative and positive urgency while controlling for concurrent and autoregressive effects. Results of the current study indicated that for the full sample, there was not an effect for the influence of binge/prolonged drinking on either negative or positive urgency during the subsequent month. However, when examined separately by sample (Turkers vs. university) and gender (male vs. female), significant effects were found more for individuals who were Turkers, male, and/or heavy drinkers, suggesting that increases in positive and negative urgency at Time 2 could be partially explained by variance in drinking patterns at Time 1 for these individuals. However, these relationships were not replicated again between …

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 created to induce emotional responses, or a neutral non-fiction story. Stressors were counterbalanced as a family or non-family stimuli to assess changes in stress response measured by salivary cortisol and heart rate variability. Results supported existing research stating that heart rate variability (HRV) is a more sensitive measure of stress. HRV statistically significantly interacted between type of stressor and PTSD symptomology (1, 70) = 5.018, p = .028, η2 =0.06. Scores on the Interpersonal Reactivity Index (IRI) indicated there were increases in empathy across time, but were not impacted by exposure to stress or treatment condition. Trauma was identified as a statistically significant factor on heart rate variability F(1, 70) = 8.39, p = .005, η2 = .10. Treatment condition did not impact cortisol levels across time F(2, 71) = .2.532, p = .087, η2 = .11. …

Every year many immigrant families become members of United States communities. Among these are international graduate students whose lives and identities, as well as those of their families, are changed as they negotiate between cultures and experiences. In this study, three Saudi graduate students share their stories about culture, education and literacy. This research employs narrative inquiry to answer the following question: What stories do Saudi immigrant students tell regarding their educational beliefs and experiences, as well as the experiences of their children in the U.S. and in Saudi Arabia? The participants' interview texts are the main data source. The three-dimensional narrative inquiry spaces of temporality, sociality, and place help identify the funds of knowledge in place throughout these narratives. Data analysis uses funds of knowledge as a theoretical lens to make visible the critical events in each narrative. These events point to themes that support the creation of a third space in which the participants negotiate being in two cultures as well as their storying across time to understand their own experiences. Themes of facing challenges, problem solving, adaptation, and decision-making connect these stories and support the discussion of findings within the personal, practical, and social justifications for this …

This thesis describes a pilot study for a new cultural anthropology initiative at Team One, a US-based premium and luxury brand advertising agency. In this study, I explore the role and meaning of technology among a population of affluent individuals in Southern California through diaries and ethnographic interviews conducted in their homes. Using schema theory and design anthropology to inform my theoretical approach, I discuss socioeconomic and cultural factors that shape these participants' notions of affluence and influence their presentation of self through an examination of their technology and proudest possessions. I put forward a theory of conspicuous achievement as a way to describe how the affluent use technology to espouse a merit-based model of affluence. Through this model of affluence, participants strive to align themselves to the virtuous middle-class while ascribing moral value to their consumption practices. Lastly, I provide a typology of meaningful technology artifacts in the affluent home that describes the roles of their most used tech devices and how each type supports conspicuous achievement.

This study examines the ways visual culture influences a child's drawings. The child is my 9-year-old daughter Nada, who was born in Saudi Arabia and is a fourth-grade student temporarily living in the United States. The study uses qualitative methods of data collection and exploratory case study research design as a methodology. The data were analyzed in light of Althusser's theory of ideology, specifically the notion of interpellation, along with visual culture theories. In addition, gender performativity theory, specifically the work of Judith Butler, was used to consider gender issues when these concerns emerged from the study. Nada has been exposed to two diverse cultures, those of Saudi Arabia and the United States. Both cultures may impact Nada's interpretations of her visual surroundings in various ways. Therefore, recognizing and examining how she interacts with US visual culture might help to uncover how such interactions constitute the basis of her perceptions, identities, and critical thinking. Drawing is not only a means of self-expression but also an important function of communication, identity formation, and represents possible ways of being in the world that are related to culture, community, and society as a whole. The study begins with the premise that there is …

The schoolhouse is a place in which messages for student consumption are typically found with classroom lectures, text, and activities. As with any social setting, however, the communication is not confined to one space but extends, in this case, to hallways, common spaces, and exterior of the building. One of the most common practices for the delivery of messages to students within the schoolhouse is through visual signage. Visual signage can traverse disciplines encompassing concepts from the fields of communication, semiotics, language, literacy, and even interior design. In an effort to understand the impact these signs have on student populations this dissertation asks the question: How are signs within public high schools produced, consumed, and influential to persons in contact with intended messages that are presented in public school spaces? The study utilizes ethnography to describe the production, consumption, and influence of fixed signs in the interior hallways and common spaces at three public high schools in Texas. At each campus, student volunteers, one from each grade level, provided their individual course schedule to follow their daily route from class to class at their particular high school. Post these observations these students engaged in focus groups to discuss the various …

Juvenile delinquency is an issue in today's society for various reasons. This issue can result due to different motives, but family dynamics is one of the most vital factors. The current study extends prior research done in regards to the family factors that affect juvenile delinquency and what policies and programs are available to eliminate these factors. The seven family dynamics that are studied are socioeconomic status, divorce, cohabiting, family transitions, parental incarceration, parental control, as well as parental substance abuse. A subsample of policies and programs are assigned to each factor and researched of whether or not they are effective. Majority of the programs were effective and were found to minimize antisocial behaviors among adolescents. The programs that were not evaluated were still found to have a positive impact on juveniles' behaviors due to the outcomes of the policies. Investing in these programs and policies are beneficial for juveniles and the impact that family dynamics play on delinquency.

The purpose of this research was to examine ESL (English as a second language) students' current use of their mobile phones for English skill building activities outside of class in a U.S. school setting. In addition, this research reported on students' perceptions of the potential benefits of using smartphones in class for English learning. Also learners' current English related activities using mobile devices and time duration of using different phone features were studied. The literature review included smartphones, computer education, mobile learning, mobile assisted language learning (MALL), computer assisted language learning (CALL), theories of second language learning, second language learner attributes and the use of smartphones outside the classroom. An electronic survey was used to collect the quantitative data which were analyzed by descriptive and inferential statistics. The results concluded that students used mobile applications on a daily basis to read and write email, read books and news, check a dictionary, talk, text and video chat. Students used mobile phones outside of class to improve the English skills listed in the survey and the same participants perceived the potential benefits of using smartphones in class for the same English skills. Among the English skills, vocabulary exercises, finding example sentences of …

Preservice teachers (PSTs) bring a plethora of knowledge and experiences to their educator preparation courses. The PSTs have also formed ideas about how to teach based on their observations during the thousands of hours they spent as students in the classroom from kindergarten through high school graduation. This phenomenon, coined by Lortie, is called the apprenticeship of observation. Past research has focused on the apprenticeship of observation in general while neglecting to specifically explore how this phenomenon influences PSTs in regards to writing. Guiding this study were three research questions: (1) what are the PSTs' beliefs about writing instruction and themselves as writers, (2) how have PSTs' experiences as students affected their beliefs about themselves as writers, and (3) how do PSTs' experiences as students influence their plans to teach writing? After conducting a thematic analysis, there are four findings that stemmed from the data. First, PSTs come to their educator preparation programs with beliefs about themselves as writers. Particularly, the PSTs believe they are either writers or non-writers, Next, PSTs believe that writing instruction should be high-quality and foster student interest. Additionally, data suggested that PSTs' past experiences as students in a writing classroom influenced the PSTs' beliefs. Particularly, …

There is a paucity of research regarding language use among bilingual clients, particularly with Latino children. In order to provide culturally sensitive counseling for bilingual, Spanish-speaking, Latino children it is important to understand their experience of language use. The purpose of this study was to investigate how second generation, bilingual, Mexican American, 5th grade students experience language use in the two languages with which they communicate. I employed a phenomenological method to data collection and analysis and conducted semi-structured individual and group interviews with three boys and five girls (N = 8). Analysis of the individual and group interviews yielded four main structures: (a) dominant language determined perception of developing dual selves, (b) speaking two languages useful in language brokering and upward mobility, (c) dominant language determined experience of language use, and (d) language use and aspects of the complementarity principle. Findings from this study suggest that bilingual Latino children experience language brokering for their parents as difficult, speaking two languages as useful regarding upward mobility, and that their dominant language influences various aspects of their daily experiences such as with whom and where they use each language. Limitations to this research include insufficient time building rapport with participants and …

This study analyzes senior women faculty's discourses about personal and professional experiences they believe contributed to their advancement in academic careers in science, technology, engineering, and mathematics (STEM). The purpose of the study is to understand factors that activate women's success in STEM disciplines where women's representation has not yet attained critical mass. A poststructuralist emphasis on complexity and changing nature of power relations offers a framework that illuminates the ways in which elite women navigate social inequalities, hierarchies of power, and non-democratic practices. Feminist poststructural discourse analysis (FPDA) methods allow analysis of women's talk about their experiences in order to understand the women's complex, shifting positions. Eight female tenured full professors of STEM at research-focused universities in the United States participated in the study. Data sources were in-depth semi-structured interviews, a demographic survey, and curricula vitae. Findings will help shape programs and policies aimed at increasing female representation and promoting achievement at senior levels in academic STEM fields.

This thesis presents experiments and numerical analysis of the cold-formed steel clip angle in three different limit states which are shear, compression, and combination of the screw connection. A previous cold-formed steel clip angle test program (which is Phase 1) developed design methods for clip angle. Therefore, the object of this thesis is to further investigate the behavior and design methods of loading-bearing cold-formed steel clip angles under different screw pattern. For each limit state, a test program was conducted to investigate the behavior, strength, and deflection of the clip angle. The test result were compared with previous CFS clip angle design method. Amending existing CFS clip angle method were developed by each of the four limit states studied in this project.

The demand for higher data rates for indoor and cell-edge users led to evolution of small cells. LTE femtocells, one of the small cell categories, are low-power low-cost mobile base stations, which are deployed within the coverage area of the traditional macro base station. The cross-tier and co-tier interferences occur only when the macrocell and femtocell share the same frequency channels. Open access (OSG), closed access (CSG), and hybrid access are the three existing access-control methods that decide users' connectivity to the femtocell access point (FAP). We define a network performance function, network productivity, to measure the traffic that is carried successfully. In this dissertation, we evaluate call mobility in LTE integrated network and determine optimized network productivity with variable call arrival rate in given LTE deployment with femtocell access modes (OSG, CSG, HYBRID) for a given call blocking vector. The solution to the optimization is maximum network productivity and call arrival rates for all cells. In the second scenario, we evaluate call mobility in LTE integrated network with increasing femtocells and maximize network productivity with variable femtocells distribution per macrocell with constant call arrival rate in uniform LTE deployment with femtocell access modes (OSG, CSG, HYBRID) for a given …