The kinetics of the gas-phase reactions of chlorine atoms with fluoromethane (CH3F) and fluoromethane-d3(CD3F) were tested experimentally. The relative rate method was applied by using CH4 as the reference compound for fluoromethane (CH3F) and CH4 and CH3F as the reference compound for fluoromethane-d3(CD3F). The rate constants for H-abstraction from CH3F and D-abstraction from CD3F were measured at room temperature and a total pressure of 920 Torr using Ar as a diluent. The rate constants are described by the expressions: kH= (3.50±0.52) x 10-13 cm3 molecule-1 s-1 and kD=(5.0±0.51) x 10-14 cm3 molecule-1 s-1. The kinetic isotope effect, equal to the ratio kH/kD, was found to be 7.0±1.2 at room temperature.

Although there is extensive research demonstrating the benefits of teaching problem solving repertoires to typically developing individuals, there is little research on the effectiveness of these kinds of procedures with individuals with special needs. In this study, a group of special education students in a public school were taught problem solving skills using a curriculum called Talk Aloud Problem Solving (TAPS), which was developed by Robbins (2014). TAPS teaches students five problem solving skills and five active listening skills. This study utilized a multiple baseline design to examine whether training in TAPS would change the way that students solve problems and increase their accuracy when solving problems. In addition, a reversal design was used for each participant, consisting of the presence and the removal of the active listener during different stages of the study. After TAPS training and guided practice sessions, all students demonstrated new problem solving repertoires and their accuracy improved. For some students, having an audience (an active listener) was necessary to maintain their behavior. Further research is needed to determine how to teach students to be their own active listener.

The position of the cell division plane in plants is determined by the position of the preprophase band. The pre prophase band (PPB) is a ring of microtubules centered around the nucleus on the inner side of plasma membrane that establishes the cortical division site. The PPB forms at the end of G2 and breaks down at the end of prophase leaving behind protein markers of its position that are collectively called the cortical division site. During cytokinesis the phragmoplast expands towards the cortical division site and mediates the fusion of the new cell plate with the mother cell at that position. Several proteins necessary for PPB formation in plants have been identified, including maize DCD1 and ADD1 and Arabidopsis TON2, which are all type 2A protein phosphatase (PP2A)B" regulatory subunits. DCD1, ADD1, and TON2 localize to the PPB and the cortical division site through metaphase. The PP2A subunits each have two EF-hand domains, which are predicted to bind calcium ions. Since calcium ions are important for some aspects of cell division, we designed a series of constructs to test if TON2 binds calcium. TON2 protein was cloned into expression vectors, pET42a, and expression of TON2 protein was confirmed via …

Natural fibers like kenaf, hemp, flax and sisal fiber are becoming alternatives to conventional petroleum fibers for many applications. One such applications is the use of Non-woven bio-fiber mats in the automobile and construction industries. Non-woven hemp fiber mats were used to manufacture plywood in order to optimize the plywood structure. Hemp fiber mats possess strong mechanical properties that comparable to synthetic fibers which include tensile strength and tensile modulus. This study focuses on the use of hemp fiber mat as a core layer in plywood sandwich composite. The optimization of fiber mat plywood was done by performing a three factor experiment. The three factors selected for this experiment were number of hemp mat layers in the core, mat treatment of the hemp mat, and the glue content in the core. From the analysis of all treatments it was determined that single hemp mat had the highest effect on improving the properties of the plywood structure.

Nearly 700,000 suspects with mental disorders are arrested and Mirandized each year. The current study systematically examined the effects of cognitive deficits and psychological symptoms on both Miranda comprehension and reasoning. The current sample was comprised of 85 adult psychiatric inpatients recruited from University Behavioral Health (UBH), a private psychiatric hospital in North Texas. Unexpectedly, most inpatients demonstrated pervasive deficits in their immediate recall of a representative Miranda warning, omitting approximately four-fifths of its content. In addition, the majority of inpatients evidenced damaging errors in their reasoning about waiver decisions. As a result, 64.7% waived and subsequently confessed after only a 3-5 minute interrogation. Interestingly, impaired verbal ability but not the severity of their symptoms predicted greater deficits in Miranda comprehension.

This project aims to explore the beliefs of international teachers regarding the students with whom they work, and the change in those beliefs over time. Participant observation, interviews, and questionnaires were used as tools of collection to address the following research questions: How did teachers' beliefs about students change over time? What variables were significantly associated with the rate of change in teacher beliefs about students? What types of challenges did teaches face while living and working in Thailand? Over the course of four months, I shadowed twenty-two U.S. teachers in thirteen different locations throughout Thailand. Participants were enrolled in an international teaching program in Thailand that provided a cultural orientation and teacher training. Participants were then assigned to teaching jobs throughout the country. Qualitative and quantitative data was analyzed using SPSS and NVivo software. This project contributes to the scholarship of teaching and learning, and anthropological and education research dedicated to exploring teachers' beliefs about students. Results of the study provide vital information about what variables or experiences may influence a critical analysis of beliefs among teachers working with students who they perceive as different from themselves. Due to some of the parallels between this study population and that …

Ghana is identified among the developing countries with high maternal mortality ratio in Africa. This study unpacked the Demographic and Health Survey data by examining the maternal health indicators at the district level using GIS methods. Understanding the geographic patterns of antenatal care, place of delivery, and skilled birth attendants at the small scale will help to formulate and plan for location-specific health interventions that can improve maternal health care behavior among Ghanaian women. Districts with high rates and low rates were identified. Place of residence, Gini-Coefficient, wealth status, internet access, and religious affiliation were used to explore the underlying factors associated with the observed patterns. Economic inequality was positively associated with increased use of maternal health care services. The ongoing free maternal health policy serves as a cushion effect for the economic inequality among the districts in the Northern areas. Home delivery is common among the rural districts and is more prominent mostly in the western part of Northern Region and southwest of Upper West. Educating women about the free maternal health policy remains the most viable strategy for positive maternal health outcomes and in reducing MMR in Ghana.

This thesis describes an approach for object recognition using the chordiogram shape-based descriptor. Global shape representations are highly susceptible to clutter generated due to the background or other irrelevant objects in real-world images. To overcome the problem, we aim to extract precise object shape using superpixel segmentation, perceptual grouping, and connected components. The employed shape descriptor chordiogram is based on geometric relationships of chords generated from the pairs of boundary points of an object. The chordiogram descriptor applies holistic properties of the shape and also proven suitable for object detection and digit recognition mechanisms. Additionally, it is translation invariant and robust to shape deformations. In spite of such excellent properties, chordiogram is not scale-invariant. To this end, we propose scale invariant chordiogram descriptors and intend to achieve a similar performance before and after applying scale invariance. Our experiments show that we achieve similar performance with and without scale invariance for silhouettes and real world object images. We also show experiments at different scales to confirm that we obtain scale invariance for chordiogram.

Agtarap, Wright, Mlynski, Hammad, and Blackledge took an initial step in providing support for the predictive validity of a new conceptual analysis concerned with behavioral restraint, defined as active resistance against a behavioral impulse or urge. The current study was designed to partially replicate and extend findings from their study, employing a common film protocol and a procedure for inducing low- and high levels of fatigue. Analyses on key data indicated that the fatigue manipulation was ineffective. On the other hand, they supported the suggestion that behavioral restraint should be proportional to the strength of an urge being resisted so long as success is perceived as possible and worthwhile. Analyses also provided evidence of gender differences for this behavioral restraint task. Women showed relatively enhanced CV responses to my manipulation of urge magnitude, performed less well, rated the behavioral restraint challenge as harder, and rated success on the more difficult behavioral restraint task as more important. A broad indication is that men and women can differ in the strength of impulses they experience in response to stimulus presentations as well as in the importance they place on resisting the impulses.

This thesis examines the various "signature" threads that are present within the "oeuvre" of the Hollywood filmmaker Adrian Lyne. The goal of this thesis is to showcase both how and why Lyne can be thought of as an auteur and to open up his films to new and previously unexplored meanings. Lyne's eight feature films are analyzed in-depth individually and in comparison to one another from a variety of theoretical frameworks and points of focus in each of the body chapters.

The outbreak of the Ebola virus was declared a Public Health Emergency of International Concern by the World Health Organisation (WHO). Due to the complex nature of the outbreak, the Centers for Disease Control and Prevention (CDC) had created interim guidance for monitoring people potentially exposed to Ebola and for evaluating their intended travel and restricting the movements of carriers when needed. Tools to evaluate the risk of individuals and groups of individuals contracting the disease could mitigate the growing anxiety and fear. The goal is to understand and analyze the nature of risk an individual would face when he/she comes in contact with a carrier. This thesis presents a tool that makes use of contextual data intelligence to predict the risk factor of individuals who come in contact with the carrier.

The present investigation evaluated whether dispositional use of emotional approach coping partially accounts for the association between parental response to emotional expression and posttraumatic stress symptoms (PTSS) in a sample of 252 trauma-exposed individuals drawn from a pool of college students and college-age members of the community at-large. An online survey assessed parental reactions to participants' negative emotions during childhood (i.e., offspring retrospective report), as well as participant trauma history, PTSS, and use of emotional approach coping. Findings complement literature illustrating the long-lasting implications of the parent-child relationship, such that both supportive and unsupportive parenting were related to PTSS. Supportive parental reactions also were related to emotional expression, but not emotional processing, and unsupportive reactions did not significantly relate to either aspect of emotional approach coping. Notably, emotional approach coping strategies were unrelated to PTSS in the full sample, and thus the indirect effects models were not supported. Post hoc analyses indicated preliminary support for the indirect effect of emotional expression on the relation between supportive parenting and PTSS in the local college student sample (n = 117). Limitations and implications for future research are discussed.

In the Dallas/Fort Worth (DFW) do-it-yourself (DIY) punk scene, participants attempt to adhere to notions of authenticity that dictate whether a band, record label, performance venue, or individual are in compliance with punk philosophy. These guiding principles champion individual expression, contributions to one's community (scene), independence from the mainstream music industry and consumerism, and the celebration of amateurism and the idea that everyone should "do it yourself." While each city or scene has its own punk culture, participants draw on their perceptions of the historic legacy of punk and on experiences with contemporaries from around the world. For this thesis, I emphasize the significance of performance spaces and the sonic aesthetic of the music in enacting and reinforcing notions of punk authenticity. The live performance of music is perceived as the most authentic setting for punk music, and bands go to great lengths to recreate this soundscape in the recording studio. Bands achieve this sense of liveness by recording as a group, rather than individually for a polished studio sound mix, or by inviting friends and fans into the studio to help record a live show experience. House venues have been key to the development of the DFW scene with …

"Off Main Street" is a collection of short stories concerned, primarily, with the expression of womanhood in the American Midwest.

Wireless sensor networks are an indispensable tool in this highly connected world. WSNs have been the focus of research efforts in areas of communication, electronics and control for many years. Advancements in the fields of MEMS, RF and digital circuit technology has led to the development of low cost and extremely power efficient smart sensors. This has led to the need of a fast, reliable and inexpensive method of consensus building for these sensor networks. Basic concepts of graph theory and consensus building are explained in this thesis. This thesis reviews the models and strategies for consensus building present in the literature. The shortcomings of these models are explained through examples and a leader-follower model based consensus building strategy is presented. Algorithm to convert any graph into a bipartite graph by edge removal and a strategy to select effective leaders based on a weighted combination of node centrality, ratio of leaders to the total number of nodes and presence of leaf nodes in the group is presented in this thesis. Proposed leader-follower model is compared against classic models for consensus building are compared and proven to be better. Mobility is studied using deterministic and random mobility models to show the …

This thesis proposes a design of a rapidly deployable cellular network prototype that provides voice and data communications and it is interoperable with legacy devices and the existing network infrastructure. The prototype is based on software defined radio and makes use of IEEE 802.11 unlicensed wireless radio frequency (RF) band for backhaul link and an open source GSM implementation software. The prototype is also evaluated in environments where there is limited control of the radio frequency landscape, and using Voice Over Internet Protocol (VoIP) performance metrics to measure the quality of service. It is observed that in environments where the IEEE 802.11 band is not heavily utilized, a large number of calls are supported with good quality of service. However, when this band is heavily utilized only a few calls can be supported as the quality of service rapidly degrades with increasing number of calls, which is due to interference. It is concluded that in order to achieve tolerable voice quality, unused licensed spectrum is needed for backhaul communication between base stations.

This qualitative study addresses how the Dallas Morning News and Al Día reporters and editors determine what type of news related to the Dallas Latino and Hispanic communities gets covered. It also looks into how and why each newspaper tackles the coverage of these communities. Through a systematic analysis of 8 in-depth interviews and a 6-month ethnography, the findings of this study suggest that Latino and Hispanic journalists in Dallas feel the Latino and Hispanic communities are regarded as the "other." This study suggests the newsroom's hegemony and its news production routines influence the way Latino and Hispanic communities are covered in Dallas, and the way Latino and Hispanic reporters and editors who primarily cover these communities are treated. Though the newsrooms have made an effort to diversity its staff, reporters and editors claim they still have a long way to go before the staff accurately represents the large Hispanic and Latino population in the city.

During the modern era, the urbanization of water has been facilitated by various privileged discourses, which valorize major engineering interventions for the sake of continued urban growth. This research examines discourse surrounding the 2-th Century proposal and construction of a reservoir near the then-tiny farming community of Grapevine, Texas, for the benefit of urban interests. I argue that urban interests produced Grapevine space as nothing more than a container for city water, by rendering meaningless any conception of space that was not directly articulated with urban economic networks. Modern discourse collapsed Denton Creek space from a watershed and landscape into a dimensionless node in the urban space of flows. In return, rural inhabitants were encouraged to progress and to modernize their own spaces: to become urban. Whereas urban discourse entails an implicit spatial imaginary of networks, I deploy the conceptual framework of settler colonialism to show that a core-periphery relationship remains relevant, and is not reducible to a network spatial ontology.

Artist Statement from the MFA Exhibition "Objects from a Future Past" as shown at the Erin Cluley Gallery in Dallas, Texas.

In game based learning, motivating the players to learn by providing them a desirable gameplay experience is extremely important. However, it's not an easy task considering the quality of today's commercial non-educational games. Throughout the gameplay, the player should neither get overwhelmed nor under-challenged. The best way to do so is to monitor the player's actions in the game because these actions can tell the reason behind the player's performance. They can also tell about the player's lacking competencies or knowledge. Based on this information, in-game educational interventions in the form of hints can be provided to the player. The success of such games depends on their interactivity, motivational outlook and thus player retention. UNTANGLED is an online mapping game based on crowd-sourcing, developed by Reconfigurable Computing Lab, UNT for the mapping problem of CGRAs. It is also an educational game for teaching the concepts of reconfigurable computing. This thesis performs qualitative comparative analysis on gameplays of low performing players of UNTANGLED. And the implications of this analysis are used to provide recommendations for improving the gameplay experience for these players by guiding them. The recommendations include strategies to reach a high score and a compact solution, hints in the …

The increase of mass shootings in the U.S. has amplified news reporting on mental illness as a possible factor in the shootings despite no evidence linking the two issues. Sources used to explain mental illness in stories that explore the motivations of mass shooters affect audience perception. Through a qualitative content analysis of local newspaper coverage of five U.S. mass shootings in 2015, journalists linked mental illness as a possible motive through sources who were not qualified to treat or diagnose mental illness. Journalists also ignored professional guidance from the Associated Press on mental illness reporting in the context of mass shootings. Additionally, journalists assumed the audience was knowledgeable of mental illness in general terms and specific diagnoses. These findings indicate coverage of mass shootings includes inaccurate information about shooters' motives, and it also continues to frame mental illness as dangerous.

In the current study, the relation of the frequency of sport participation and gender to CRF, muscular strength and flexibility, body composition, physical activity self-efficacy, and physical self-concept in a sample of 629 sixth graders were examined. Because both physical activity and sport participation have been related to similar outcomes, activity through physical education was controlled by including only 6th graders who were part of a required school class. MANCOVA analyses demonstrated that sport involvement was significantly related to improvements in physical fitness (i.e., CRF and muscular strength), physical activity self-efficacy, and physical self-concept (CRF and muscular strength). The interaction between sport involvement and gender was not significant, suggesting these relationships existed equally for the boys and girls.

Recital presented at St. Andrew Presbyterian Church in Denton, Texas in partial fulfillment of the Master of Music (MM) degree.

Recital presented at the UNT on the Square in partial fulfillment of the Master of Music (MM) degree.