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  Partner: UNT Libraries
 Decade: 2010-2019
 Collection: UNT Theses and Dissertations
Blogging and Tweens: Communication Portal to Reading Selection and Engagement
The ethnographic study utilized the research techniques of observations, content analysis, and semi-structured interviews with tween participants (i.e., 9 through 13 year-old youth) during an 8-week literary blog project. Twenty-six participants created individual blog pages within a member-only classroom blog site that allowed for online communication between members. the blog project incorporated social networking applications with which youth frequently engage. the research questions ensured data regarding what facets participants found appealing and motivating during the project was collected. the questions allowed for determining if participants utilized peer blogs for reading material selection or repurposed the blogs to discuss other topics. Components of self-determination theory and engagement theory underlay the project design and aided in identifying motivational aspects of the data. Frequency tables outlined the identified patterns and structures of participants’ online activity. Participants found the ability to change the colors of their blog backgrounds and to design their individual blogs and the giving and receiving of feedback to be the two most appealing features of the project. Participants chose books from peer suggestions in the online world but also selected materials from recommendations they received in face-to-face interactions with their peers, their teacher, and the school librarian. Little evidence of repurposing the blog for social topics was observed. Participants engaged in discussions predominantly based around the books they were currently reading or had read. Implications for incorporating social networking applications within the classroom environment are discussed. digital.library.unt.edu/ark:/67531/metadc115155/
Blood and Earth: Indivisible Territory and Terrorist Group Longevity
The study of terrorism has been both broad in scope and varied in approach. Little work has been done, however, on the territorial aspects of terrorist groups. Most terrorist groups are revolutionary to one degree or another, seeking the control of a piece of territory; but for the supportive population of a terrorist group, how important is the issue of territory? Are the intangible qualities of territory more salient to a given population than other factors? Are territorially based terrorist groups more durable than their ideologically or religiously motivated cohorts? This paper aims to propose the validity of the territorial argument for the study of political terrorism. digital.library.unt.edu/ark:/67531/metadc271819/
Blood Brothers
Blood Brothers as a media project works as a diptych. There are two – seemingly identical – pieces of the project that must both be experienced to understand the project as a whole. The first piece of the project is the linear documentary. This part captures the experience as it exists in the past. It exists as a master copy of the original story of mine and my foster brother’s relationship. This version of the story will always exist in the past. The second part is the live-cinema documentary performance. In this version of the story, my foster brother and I are no longer only images on a screen; we are living, breathing, and emotional subjects in the present. Our presence alters how the audience consumes the material. digital.library.unt.edu/ark:/67531/metadc149656/
Blueline Concerto: Critical Essay
The purpose of this critical essay is two-fold. First, the essay presents a detailed critical analysis of my original composition, Blueline Concerto for bass trombone and wind ensemble. Second, using Blueline Concerto, the essay presents preliminary findings of my study to develop an approach to composing that takes into account the musicians' health, specifically regarding noise induced hearing loss (NIHL). Through various hypothesized composition- and orchestral-based approaches, I test effectiveness on changes in NIHL risk while also noting that artistic merit and compositional integrity is preserved. digital.library.unt.edu/ark:/67531/metadc283800/
Bodies and Other Firewood
The chakra system consists of seven energetic vortexes ascending up the spine that connect to every aspect of human existence. These vortexes become blocked and unblocked through the course of a life, these openings and closings have physiological and mental repercussions. Knowledge of these physical and mental manifestations, indicate where the chakra practitioner is in need, the practitioner can then manipulate their mind and body to create a desired outcome. These manipulations are based upon physical exercises and associative meditations for the purpose of expanding the human experience. As a poem can be thought of as the articulation of the human experience, and the chakra system can be thought of as a means to understand and enhance that experience, it is interesting and worthwhile leap to explore the how the chakras can develop and refresh the way we read and write poetry. This critical preface closely reads seven poems, one through each chakra, finding what the chakras unveil. Here, each chakra is considered for its dynamic creative capabilities and for its beneficial potentiality in the reading and writing process, finding each chakra provides tools: idea generators with the potential to free the poet from usual patterns of creativity while broadening vision and expressivity. In this collection of poetry poems are experiences chopped into consumable units that show and tell the constant negotiation between what is actually happening and the stories we tell ourselves about what is happening. digital.library.unt.edu/ark:/67531/metadc177180/
Body Dissatisfaction, Disordered Eating Behaviors and Body Image Quality of Life in African American Women with Hiv
The purpose of the current study was to further our understanding of the subjective experience of middle-age African American women who are HIV+ and on highly active antiretroviral therapy, particularly how self-reported lipodystrophy (LD), levels of body dissatisfaction, body image quality of life, and engagement in disordered eating behaviors are related. Multiple regression, MANOVA, MANCOVA, ANOVA, and chi-square were utilized to test hypotheses. Results revealed that HIV+ and HIV- women did not differ significantly on their levels of body dissatisfaction or drive for thinness. When HIV+ women were examined in more detail a pattern emerged: women who self-reported fat hypertrophy had significantly higher levels of body dissatisfaction, bingeing, but not purging, and dietary restriction and fear of weight gain compared to women who did not self-report LD. About 75% of the sample was overweight or obese, and when BMI was controlled for, these differences persisted for body dissatisfaction and disordered eating behaviors for fat hypertrophy, but not fat atrophy. Overall, the findings indicate that the type of LD, specifically hypertrophy, is more related to body dissatisfaction and disordered eating behaviors, than LD in general. Clinical implications and limitations of these findings are discussed. digital.library.unt.edu/ark:/67531/metadc177208/
Boosting for Learning From Imbalanced, Multiclass Data Sets
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In many real-world applications, it is common to have uneven number of examples among multiple classes. The data imbalance, however, usually complicates the learning process, especially for the minority classes, and results in deteriorated performance. Boosting methods were proposed to handle the imbalance problem. These methods need elongated training time and require diversity among the classifiers of the ensemble to achieve improved performance. Additionally, extending the boosting method to handle multi-class data sets is not straightforward. Examples of applications that suffer from imbalanced multi-class data can be found in face recognition, where tens of classes exist, and in capsule endoscopy, which suffers massive imbalance between the classes. This dissertation introduces RegBoost, a new boosting framework to address the imbalanced, multi-class problems. This method applies a weighted stratified sampling technique and incorporates a regularization term that accommodates multi-class data sets and automatically determines the error bound of each base classifier. The regularization parameter penalizes the classifier when it misclassifies instances that were correctly classified in the previous iteration. The parameter additionally reduces the bias towards majority classes. Experiments are conducted using 12 diverse data sets with moderate to high imbalance ratios. The results demonstrate superior performance of the proposed method compared to several state-of-the-art algorithms for imbalanced, multi-class classification problems. More importantly, the sensitivity improvement of the minority classes using RegBoost is accompanied with the improvement of the overall accuracy for all classes. With unpredictability regularization, a diverse group of classifiers are created and the maximum accuracy improvement reaches above 24%. Using stratified undersampling, RegBoost exhibits the best efficiency. The reduction in computational cost is significant reaching above 50%. As the volume of training data increase, the gain of efficiency with the proposed method becomes more significant. digital.library.unt.edu/ark:/67531/metadc407775/
Booty Calls, Rage, and Racialized/sexualized Subjects: Tmz's Coverage of Rihanna and Chris Brown
Internet-based celebrity gossip blog site, TMZ, is a growing cultural force. Employing critical rhetorical analytics, the author examines the TMZ coverage of Chris Brown's assault on his then-girlfriend, Rihanna. This project explicates TMZ's enthymematic invocation of dominant cultural ideologies surrounding race, sex, and domestic violence. Chapter 1 demonstrates the theoretical importance of both celebrities and gossip blogs, signaling the ideological importance of each. Chapter 2 critiques TMZ's reliance on historic myths regarding sex and race in their reporting on this case. Chapter 3 analyzes TMZ's humorous and affective strategies that bolster broader investments in colorblind ideologies. Chapter 4 concludes by examining the interplay of formal rhetorical elements that inform the project's findings. This research reveals that TMZ utilizes affective, enthymematic strategies that camouflage broader racist and sexist ideological impulses that perpetuate domestic violence myths. digital.library.unt.edu/ark:/67531/metadc177250/
Boron Nitride by Atomic Layer Deposition: A Template for Graphene Growth
The growth of single and multilayer BN films on several substrates was investigated. A typical atomic layer deposition (ALD) process was demonstrated on Si(111) substrate with a growth rate of 1.1 Å/cycle which showed good agreement with the literature value and a near stoichiometric B/N ratio. Boron nitride films were also deposited by ALD on Cu poly crystal and Cu(111) single crystal substrates for the first time, and a growth rate of ~1ML/ALD cycle was obtained with a B/N ratio of ~2. The realization of a h-BN/Cu heterojunction was the first step towards a graphene/h-BN/Cu structure which has potential application in gateable interconnects. digital.library.unt.edu/ark:/67531/metadc84305/
A Boy in a Canoe
The dissertation consists of a collection of personal essays about hunting and fishing. Because the essays are narratives and contain dialogue, characterization, description, themes, etc., they fall under the genre of creative nonfiction. The dissertation has two parts. Part I consists of an essay that discusses the author’s struggle to combine creative nonfiction with outdoor writing and also describes the author’s dilemma of writing about hunting, a topic that is often controversial at the university, while a graduate student. Part II of the dissertation consists of narratives that recount the author’s hunting and fishing experiences that occurred in North Texas and in the mountains of New Mexico. The essays discuss fishing for trout and hunting for deer, wild boars, quail, and duck. Three major themes are developed throughout the dissertation. The first theme describes the close relationship that exists between the author and his father. This closeness is partly due to the time that they have shared during decades of hunting and fishing together. The second theme discusses the ethics of hunting and especially focuses on which methods of hunting are ethical and which methods are not. The third theme explores the complex and sometimes unpleasant interactions that occur between sportsmen when they encounter each other while hunting and fishing. This theme explores the give and take attitude that must exist in order for sportsmen to get along. This attitude is necessary because no two outdoorsmen view the outdoors and hunting and fishing in quite the same way. digital.library.unt.edu/ark:/67531/metadc84264/
Branded Content: Understanding the Mechanisms of Strategic Messaging in Entertainment Television Formats
Branded content as an advertising tactic is a growing phenomenon that is not widely researched and is generally ambiguous in nature. This study uses qualitative methods to explain how branded content is defined, how it functions, and how it can influence a brand. Case studies of IKEA and Chevrolet were compared alongside four interviews with branded content professionals. the data collected suggests that branded content in structure and substance is varied, however it comprises engagement, the brand, and financial transaction. the data collected also suggested that brands take a variety of stances when controlling content to support their brand, and that branded content generally supports the intangible aspects of a brand, as opposed to product features. digital.library.unt.edu/ark:/67531/metadc115129/
Brass Band History and Idiomatic Writing in Brass Music
The purpose of this research was to explore historical perspective of brass music. There is a brief history of brass bands in Britain. Furthermore, the paper examines the differences between two brass band pieces in the repertoire, A Western Fanfare by Eric Ewazen and Brass Symphony by Jan Koetsier. Both of these pieces were compared and contrasted against the author's newly composed work for brass, Two Companion Pieces for Brass Ensemble. The paper covers different techniques commonly used in brass writing and points these techniques out in all three pieces. digital.library.unt.edu/ark:/67531/metadc271838/
The Brazos Valley Groundwater Conservation District: A Case Study in Texas Groundwater Conservation
This thesis examines the history of groundwater management through the development of groundwater conservation districts in Texas. Political, economic, ideological, and scientific understandings of groundwater and its regulation varied across the state, as did the natural resource types and quantities, which created a diverse and complicated position for lawmakers and landowners. Groundwater was consistently interpreted as a private property right and case law protected unrestricted use for the majority of the twentieth-century even as groundwater resources crossed property and political boundaries, and water tables declined particularly during the second-half of the century. The case study of the Brazos Valley Groundwater Conservation District describes the complicated history of groundwater in Texas as the state attempted to balance natural resource legislation and private property rights and illuminate groundwater’s importance for the future. digital.library.unt.edu/ark:/67531/metadc84287/
Breaking Accidental Behavior Chains.
Accidental behavior chains are a common problem in dog training. Many handlers inadvertently reinforce undesirable behaviors. The behavior analytic literature already contains articles describing methods of breaking chains; however, those methods either are not used in dog training for practical purposes or are ineffective in dog training. This experiment investigated two ways to break a behavior chain, including extending the chain and introducing a delay into the chain. The results of extending the chain showed that it is possible to decrease the target behavior using this method, but it was not eliminated in this study. Adding a delay into the behavior chain resulted in a quick elimination of the target behavior. digital.library.unt.edu/ark:/67531/metadc28453/
Breaking Outside: Narratives of Art and Hawaii
This research examines the personal narratives of two contemporary non-native artists living and working on the island of Oahu, Hawaii. Issues related to narratives, power structures, artistic processes, insider/outsider dynamics, Hawaiian culture, island life, surfing, and the researcher's own experiences are woven together to formulate realizations surrounding alternative knowledge systems and the power of multiple or hidden narratives to the practice of art education. digital.library.unt.edu/ark:/67531/metadc271797/
Bridging the Gap Between Access and Success: a Study of the Impact of an Access and Success Program on Academic Outcomes of Low-income College Freshmen
In response to the increasing cost of college, colleges and universities are leveraging financial aid and academic support services to implement access and success programs intended to help financially disadvantaged students afford and persist through a baccalaureate degree program. This research is a study of the efficacy of one such program at a large research university in the southwestern region of the United States. The study sample included low-income program participants in four cohorts of freshmen enrolling for the first time in college from fall 2007 (Cohort 1) to fall 2010 (Cohort 4) and a comparison group of almost 400 low-income freshmen who enrolled for the first time in college in fall 2006 (the year prior to program implementation) for a sample total of over 2150 students. Approximately 64% were female, 36 % were males, over 60% were African American and Hispanic, and over 75% were first generation college students. Logistic regression was used to measure probability and odds of their academic success and retention in the first year of college utilizing gender, ethnicity, parental degree attainment, and program participation as the independent variables. The logistic regression models illustrated that participation in the program netted a consistently positive and significant impact on academic success across all cohorts, increasing the odds ratio for academic success no less than three times in favor of program participants vis-à-vis the comparison group. The statistical models illustrated that the program netted a slight positive impact on the odds of retention, particularly for African American students. Therefore, the principle implication that might be drawn from this study is that by strategically leveraging financial aid and academic support services, access and success programs can facilitate higher rates of academic success and retention for financially disadvantaged college students. digital.library.unt.edu/ark:/67531/metadc149575/
Bridging the Theory-to-practice Gap: a Multivariate Correlational Study Exploring the Effects of a Graduate Online Learning Environment As a Community of Practice Framework
In this multivariate correlational study, the researcher examined the course culture of an online graduate course whose environment exhibited characteristics of a Community of practice (CoP). An online survey captured data used to explore the relationships among variables shown to describe a CoP in field environments and among student perceptions of their experience in the course culture. A canonical correlation analysis (CCA) and commonality analysis (CA) were conducted using five predictor variables and three criterion variables to evaluate the degree and direction of the relationships. The CCA revealed that the full model was significant, explaining approximately 74% of the variance among the two synthetic variates. Impact, faculty leadership, and connection were the largest contributors to the predictor variate. The criterion variate was primarily explained by value and perceived CoP, with exposure to the profession providing a smaller contribution. The CA confirmed these findings. Results from this study indicate that a CoP could be fostered in an online graduate course. The overall significance of the model indicates teachers can nurture an environment wherein graduate students will take the initiative to work with others to create and acquire knowledge that creates a sense of professional connection with each other and with the profession overall. The results of this study suggest further empirical research in implementing and assessing CoPs in online graduate courses is warranted. digital.library.unt.edu/ark:/67531/metadc407763/
British Labour Government Policy in Iraq, 1945-1950
Britain during the Labour government's administration took a major step toward developing Iraq primarily due to the decision of Ernest Bevin, the Foreign Minister, to start a new British policy toward the Iraqi regimes that would increase the British influence in the area. This led to Bevin's strategy of depending on guiding the Iraqi regime to make economic and political reforms that would lead to social justice. digital.library.unt.edu/ark:/67531/metadc271770/
Britten’s Op 47, Five Flower Songs: Breaking Trends in Analysis
Benjamin Britten’s life and music have been the subject of study from early in his musical career. Current trends in psychological analysis of Britten’s music tend to focus on common themes, such as homosexuality, pacifism, the sense of the outsider, and the loss of innocence. Similarly, theoretical analyses tend either to provide general categorizations of the technical elements in Britten’s music or to apply a singular preconceived concept as a tool for understanding his compositions. These approaches have yielded significant information but leave aspects of Britten’s personality and music unilluminated. Britten’s Op. 47, Five Flower Songs, are a collection of five part songs for a cappella chorus that are often included within the canon of 20th century choral literature. This paper examines a new perspective on Britten’s music by examining the relationship between Britten’s friendships and their influence on his compositions. Through the examination of these relationships information is revealed that allows for a new method of analysis that is particularly relevant to the Five Flower Songs. The opus was dedicated to two botanists for the occasion of their 25th wedding anniversary. Contained within specific movements are extra-musical references to scientific characteristics of the flowers that are the subjects of the texts. By examining this work and important connections between other friendships and his compositional output this paper demonstrates the validity of this perspective in analyzing Britten’s life and music. digital.library.unt.edu/ark:/67531/metadc500181/
Broad-band Light Emission From Ion Implanted Silicon Nanocrystals Via Plasmonic and Non-plasmonic Effects for Optoelectronics
Broad band light emission ranging from the ultraviolet (UV) to the near infrared (NIR) has been observed from silicon nanoparticles fabricated using low energy (30-45 keV) metal and non-metal ion implantation with a fluence of 5*1015 ions/cm2 in crystalline Si(100). It is found from a systematic study of the annealing carried out at certain temperatures that the spectral characteristics remains unchanged except for the enhancement of light emission intensity due to annealing. The annealing results in nucleation of metal nanoclusters in the vicinity of Si nanoparticles which enhances the emission intensity. Structural and optical characterization demonstrate that the emission originates from both highly localized defect bound excitons at the Si/Sio2 interface, as well as surface and interface traps associated with the increased surface area of the Si nanocrystals. The emission in the UV is due to interband transitions from localized excitonic states at the interface of Si/SiO2 or from the surface of Si nanocrystals. The radiative efficiency of the UV emission from the Si nanoparticles can be modified by the localized surface plasmon (LSP) interaction induced by the nucleation of silver nanoparticles with controlled annealing of the samples. The UV emission from Si nanoclusters are coupled resonantly to the LSP modes. The non-resonant emission can be enhanced by electrostatic-image charge effects. The emission in the UV (~3.3 eV) region can also be significantly enhanced by electrostatic image charge effects induced by Au nanoparticles. The UV emission from Si nanoclusters, in this case, can be coupled without LSP resonance. The recombination of carriers in Si bound excitons is mediated by transverse optical phonons due to the polarization of the surface bound exciton complex. The low energy side of emission spectrum at low temperature is dominated by 1st and 2nd order phonon replicas. Broad band emission ranging from the UV to the NIR wavelength range can be obtained from Ag implanted onto a single silicon substrate. digital.library.unt.edu/ark:/67531/metadc177255/
A-Bu-GE: A Composition for Organ and Percussion
Keyphrases describe a document in a coherent and simple way, giving the prospective reader a way to quickly determine whether the document satisfies their information needs. The pervasion of huge amount of information on Web, with only a small amount of documents have keyphrases extracted, there is a definite need to discover automatic keyphrase extraction systems. Typically, a document written by human develops around one or more general concepts or sub-concepts. These concepts or sub-concepts should be structured and semantically related with each other, so that they can form the meaningful representation of a document. Considering the fact, the phrases or concepts in a document are related to each other, a new approach for keyphrase extraction is introduced that exploits the semantic relations in the document. For measuring the semantic relations between concepts or sub-concepts in the document, I present a comprehensive study aimed at using collaboratively constructed semantic resources like Wikipedia and its link structure. In particular, I introduce a graph-based keyphrase extraction system that exploits the semantic relations in the document and features such as term frequency. I evaluated the proposed system using novel measures and the results obtained compare favorably with previously published results on established benchmarks. digital.library.unt.edu/ark:/67531/metadc67940/
Burushaski Case Marking, Agreement and Implications: an Analysis of the Hunza Dialect
This thesis was written to explore the structural case patterns of the Burushaski sentence and to examine the different participant coding systems which appear between noun marking and verb agreement. Verb suffixes follow nominative alignment patterns of agreement, while the verb prefix agrees with the affected argument as determined by semantic relations, as opposed to syntactic ones. The agent noun phrase is directly marked when highly active or volitional, suggesting a system of agent marking on the noun phrase and nominative alignment on the verb suffix. Nominative alignment also allows for a less marked presence of passive voice. Burushaski's agent marking is not entirely consistent; however, its nominative alignment is consistent. The conclusion is that Burushaski is not an ergative language at all. digital.library.unt.edu/ark:/67531/metadc177257/
Business Intelligence Success: An Empirical Evaluation of the Role of BI Capabilities and the Decision Environment
Since the concept of business intelligence (BI) was introduced in the late 1980s, many organizations have implemented BI to improve performance but not all BI initiatives have been successful. Practitioners and academicians have discussed the reasons for success and failure, yet, a consistent picture about how to achieve BI success has not yet emerged. The purpose of this dissertation is to help fill the gap in research and provide a better understanding of BI success by examining the impact of BI capabilities on BI success, in the presence of different decision environments. The decision environment is a composition of the decision types and the way the required information is processed to aid in decision making. BI capabilities are defined as critical functionalities that help an organization improve its performance, and they are examined in terms of organizational and technological capabilities. An online survey is used to obtain the data and partial least squares path modeling (PLS) is used for analysis. The results of this dissertation suggest that all technological capabilities as well as one of the organizational capabilities, flexibility, significantly impact BI success. Results also indicate that the moderating effect of decision environment is significant for quantitative data quality. These findings provide richer insight in the role of the decision environment in BI success and a framework with which future research on the relationship between BI capabilities and BI success can be conducted. Findings may also contribute to practice by presenting information for managers and users of BI to consider about their decision environment in assessing BI success. digital.library.unt.edu/ark:/67531/metadc30472/
“Campaigns Replete with Instruction”: Garnet Wolseley’s Civil War Observations and Their Effect on British Senior Staff College Training Prior to the Great War
This thesis addresses the importance of the American Civil War to nineteenth-century European military education, and its influence on British staff officer training prior to World War I. It focuses on Garnet Wolseley, a Civil War observer who eventually became Commander in Chief of the Forces of the British Army. In that position, he continued to write about the war he had observed a quarter-century earlier, and was instrumental in according the Civil War a key role in officer training. Indeed, he placed Stonewall Jackson historian G.F.R. Henderson in a key military professorship. The thesis examines Wolseley’s career and writings, as well as the extent to which the Civil War was studied at the Senior Staff College, in Camberly, after Wolseley’s influence had waned. Analysis of the curriculum from the College archives demonstrates that study of the Civil War diminished rapidly in the ten years prior to World War I. digital.library.unt.edu/ark:/67531/metadc103302/
Campania In-Felix (Unhappy Country)
This documentary film explores the damages produced by the illegal dumping of toxic waste in the environment and the rise in health concerns specific to the Campania region in Southern Italy. The management of waste material in the region is in the hands of the Camorra - a mafia organization with vast economic and political power. Through the narration of personal stories, the documentary reveals the broken emotional and cultural balance between the people from the region and their land. digital.library.unt.edu/ark:/67531/metadc67970/
Can Positive Reinforcement Overcome Fear? An Investigation of Competing Contingencies
Escape maintained behavior in dogs is generally displayed by one of two behaviors-fleeing or aggression. Once aggression is negatively reinforced by the removal of the aversive stimulus, it is very difficult to eliminate from the organism's repertoire. Counterconditioning is the process of pairing a positive reinforcer with an aversive stimulus in the attempts that an organism will no longer exhibit fear responses in its presence. This process must be done gradually with small approximations. Many organisms have been trained to tolerate the presence of aversive stimuli via counterconditioning. However, this process can be time consuming and has inconsistent results. The purpose of this experiment was to monitor the effects of counter conditioning around an aversive stimulus while simultaneously training an identical behavior in the presence of a neutral stimulus. The results demonstrated that even though counterconditioning produced approach to the aversive stimulus the subject still exhibited numerous fear responses when results were compared to the control condition. digital.library.unt.edu/ark:/67531/metadc84232/
Can Social Disorganization and Social Capital Factors Help Explain the Incidences of Property Crimes in Turkey?
Organized crime and terrorism taking place in the Turkish provinces get more attention in the public agenda than other type of crimes. Although property crimes receive less attention, they pose a serious threat to public order and the social welfare of Turkish society. Academic researchers have also paid little attention to the analysis of property crimes at the macro level in Turkey. For these reasons, this study focused on the analysis of property crimes for three years period, 2005, 2006 and 2007 in Turkey, using a conceptual model of social disorganization. Provincial level data from Turkish governmental agencies were used. The findings of multivariate analyses showed that social disorganization approach, as measured in this study, provided a partial explanation of property crime rates in Turkey. Family disruption and urbanization had significant effects on property crime rate, while remaining exogenous elements of social disorganization (i.e., SES, population heterogeneity and residential mobility) did not have any expected effects. In mediation analysis, using faith-based engagement and political participation rates as mediators between the structural factors of social disorganization and property crime rate provided marginal support for the theory. Political participation rate partially mediated the relationship between property crime rate and urbanization rate, while faith-based engagement rate did not mediate the effects of social disorganization variables on property crime rate. These findings were consistent with the findings of research that has been completed in other nations, and made a unique contribution to the Turkish research on crime. digital.library.unt.edu/ark:/67531/metadc103333/
Can These Bones Live? A Collection of Stories
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The collection concerns itself with race, gender, masculinity, marginalization, the act of violence as a means of self expression, identity and the performance of identity, love, and loss. The collection also uses historical events-more specifically, events that are central to black culture in Northeast, Ohio- to situate the characters and witness their response to these historical events. I strive to illustrate blackness as both political and fragmented with the characters in my collection. My characters believe that what they are doing-exacting violence, abusing women, disrespecting each other- is somehow the normative; that somehow what it is that they have learned is how they should perform black identity. digital.library.unt.edu/ark:/67531/metadc28431/
Carbon Nanostructure Based Donor-acceptor Systems for Solar Energy Harvesting
Carbon nanostructure based functional hybrid molecules hold promise in solarenergy harvesting. Research presented in this dissertation systematically investigates building of various donor-acceptor nanohybrid systems utilizing enriched single walled carbon nanotube and graphene with redox and photoactive molecules such as fullerene, porphyrin, and phthalocyanine. Design, synthesis, and characterization of the donor-acceptor hybrid systems have been carefully performed via supramolecular binding strategies. Various spectroscopic studies have provided ample information in terms of establishment of the formation of donor-acceptor hybrids and their extent of interaction in solution and eventual rate of photoinduced electron and/or energy transfer. Electrochemical studies enabled construction of energy level diagram revealing energetic details of the possible different photochemical events supported by computational studies carried out to establish the HOMO-LUMO levels in the donor acceptor systems. Transient absorption studies confirmed formation of charge separated species in the donor-acceptor systems which have been supported by electron mediation experiments. Based on the photoelectrochemical studies, IPCE of 8% was reported for enriched SWCNT(7,6)-ZnP donor-acceptor systems. In summary, the present investigation on the various nanocarbon sensitized donor-acceptor hybrids substantiates tremendous prospect, that could very well become the next generation of materials in building efficient solar energy harvesting devices andphotocatalyst. digital.library.unt.edu/ark:/67531/metadc407823/
Cardinal Giovanni Battista De Luca: Nepotism in the Seventeenth-century Catholic Church and De Luca's Efforts to Prohibit the Practice
This dissertation examines the role of Cardinal Giovanni Battista de Luca in the reform of nepotism in the seventeenth-century Catholic Church. Popes gave very large amounts of money to their relatives and the burden of nepotism on the Catholic Church was very onerous. The Catholic Church was crippled by nepotism and unable to carry out its traditional functions. Although Cardinal de Luca and Pope Innocent XI worked tirelessly to end nepotism, they were thwarted in their attempts by apprehension among the Cardinals concerning conciliarism and concerning the use of reform measures from the Council of Trent; by Gallicanism and the attempts of the French King to exercise power over the French Church; and by the entrenchment of nepotism and its long acceptance within the Church. Cardinal de Luca and Innocent XI were not able to push through reforms during their lifetimes but Pope Innocent XII was able to complete this reform and pass a reform Bull. This dissertation has two complementary themes. First, a confluence of circumstances allowed for the unfettered growth of nepotism in the seventeenth-century Church to the point of threatening the well-being of the Catholic Church. Reform was not undertaken until the threat to Church finances was severe. Secondly, two upstanding and honest reformers arose in the Catholic Church to correct the problem, de Luca and Innocent XI. The achievements of Cardinal de Luca, also an important reformer of the Canon Law, are almost unknown to an English-speaking audience. digital.library.unt.edu/ark:/67531/metadc149577/
Caregiver Perceptions of Wandering Behavior in the Adrd (Alzheimer’s Disease and Related Dementias) Patient
The dissertation examined family caregivers’ perceptions of wandering behavior after their loved one has been diagnosed with ADRD (Alzheimer’s disease and related dementias). Semi-structured in-depth face-to-face interviews of a convenience sample of 22 caregivers in the Dallas metropolitan area were conducted. Responses were analyzed using a grounded theory approach. The use of qualitative methods facilitated the study of how caregivers of a loved one with ADRD understood and explained in their own voice the wandering behavior associated with the disease and how their views of the behavior informed the caregiving process. In particular, this research examined why some caregivers tend to recognize wandering behavior as significant early on while the ADRD patient is still living in the home (and community) and modifications can be made to keep him or her there despite the behavior, and why some caregivers do not. Findings indicated that caregivers were concerned about the general safety of their loved one. Precautions were taken within the home for conditions related to frailty, but were much less likely to be taken to address wandering behavior and its negative consequences. Three groups of caregivers emerged: (a) those who primarily reacted to their loved one’s problem behaviors including wandering, and intervened minimally; (b) those who were proactive, making modifications in their routines and environment to protect their loved one after a trigger event; and (c) those who had a mixed response, who did the best that they could with what they had. This last group of caregivers took on additional roles, modified their homes for safety, but environmental stressors and inadequate supports limited their interventions. Implications of the findings for aging in place and community, further research, policy-making, and practitioners are discussed. digital.library.unt.edu/ark:/67531/metadc149582/
Carrier Mobility, Charge Trapping Effects on the Efficiency of Heavily Doped Organic Light-Emitting Diodes, and EU(lll) Based Red OLEDs
Transient electroluminescence (EL) was used to measure the onset of emission delay in OLEDs based on transition metal, phosphorescent bis[3,5-bis(2-pyridyl)-1,2,4-triazolato] platinum(ΙΙ) and rare earth, phosphorescent Eu(hfa)3 with 4'-(p-tolyl)-2,2":6',2" terpyridine (ttrpy) doped into 4,4'-bis(carbazol-9-yl) triphenylamine (CBP), from which the carrier mobility was determined. For the Pt(ptp)2 doped CBP films in OLEDs with the structure: ITO/NPB (40nm)/mcp (10nm)/65% Pt(ptp)2:CBP (25nm)/TPBI (30nm)/Mg:Ag (100nm), where NPB=N, N'-bis(1-naphthyl)-N-N'-biphenyl-1, 1'-biphenyl-4, MCP= N, N'-dicarbazolyl-3,5-benzene, TPBI=1,3,5-tris(phenyl-2-benzimidazolyl)-benzene, delayed recombination was observed and based on its dependence on frequency and duty cycle, ascribed to trapping and de-trapping processes at the interface of the emissive layer and electron blocker. The result suggests that the exciton recombination zone is at, or close to the interface between the emissive layer and electron blocker. The lifetime of the thin films of phosphorescent emitter Pt(ptp)2 were studied for comparison with rare earth emitter Eu(hfa)3. The lifetime of 65% Pt(ptp)2:CBP co-film was around 638 nanoseconds at the emission peak of 572nm, and the lifetime of neat Eu(hfa)3 film was obtained around 1 millisecond at 616 nm, which supports the enhanced efficiency obtained from the Pt(ptp)2 devices. The long lifetime and narrow emission of the rare earth dopant Eu(hfa)3 is a fundamental factor limiting device performance. Red organic light emitting diodes (OLEDs) based on the rare earth emitter Eu(hfa)3 with 4'-(p-tolyl)-2,2":6',2" terpyridine (ttrpy) complex have been studied and improved with respect performance. The 4.5% Eu(hfa)3 doped into CBP device produced the best power efficiency of 0.53 lm/W, and current efficiency of 1.09 cd/A. The data suggests that the long lifetime of the f-f transition of the Eu ion is a principal limiting factor irrespective of how efficient the energy transfer from the host to the dopant and the antenna effect are. digital.library.unt.edu/ark:/67531/metadc30483/
A Case Study of 1:1 Technology Policies in Four Texas High Schools and Their Relationship to Practice
With increasing emphasis on technology in schools, the importance of technology policies is great. This study investigated policies for four 1:1 secondary schools in Texas (schools with a ratio of one computing device per student), particularly with respect to the relationship of those policies to practice. The purpose of the study was to determine the current status of the National Education Technology Standards (NETS) essential conditions as reflected in policy and the relationship of those conditions to practice as measured through levels of technology usage and teaching innovation. Schools were selected through purposive, criterion sampling. Open-ended interviews were conducted with twelve participants (principals, technology directors, and superintendents). Policies were rated by campus principals and the researcher using a rubric based on the NETS essential conditions. Finally, surveys of proficiency and readiness measures were collected from 156 teachers using the School Technology and Readiness (STaR) instrument and the Levels of Teaching Innovation (LoTI) instrument. Interviews were transcribed and coded using structural and frequency coding. Policies were analyzed using magnitude coding and policy ratings. A qualitative analysis determined patterns between policy and practice. Quantitative data collected from surveys were measured against policy ratings and magnitude coding using bivariate correlation methods in SPSS. Quantitative analysis revealed two statistically significant relationships between policy and reported levels of practice in the classroom. Qualitative elements of the study from interviews and policy ratings revealed six findings that may explain a lack of correlation between policy and practice: a lack of ability for leadership to identify 1:1 program policy; lack among school leaders of perceived relationship between policy and practice; a belief among leaders that they are communicating policy to stakeholders even though they demonstrated difficulty in articulating policy; an inability to identify specific research-based theoretical foundations in policy; a lack of meaningful measurement of practices; and a lack of leadership at the same school to interpret policy similarly. A seventh finding revealed potential patterns between conditions that are addressed extensively in policy and evidence of those conditions in practice. Qualitative findings, in particular, contribute insights into disconnections between policy and practice in 1:1 settings. digital.library.unt.edu/ark:/67531/metadc407819/
A Case Study of the Impact of the Middle School Data Coach on Teacher Use of Educational Test Data to Change Instruction
With the advent of No Child Left Behind (NCLB) legislation in 2002 and its attendant increases in accountability pressure, many districts and schools currently embrace data analysis as an essential part of the instructional decision making process. In their attempts to overcome low achievement on state-mandated tests, some districts have begun employing data coaches. The study reported here, which was set in three middle schools in a northeast Texas school district, assessed the influence of the campus data coach on a middle school mathematics teachers' use of analyzed data to make instructional decisions. It also examined the extent to which the Data Coach/teacher relationship resolved teacher concerns about data-driven decision making. Phenomenological interviews with data coaches were guided by Seidman's (2006) three-series interview. Measurement of teacher use of data to make decisions was based on the concerns-based adoption model's levels of use interview protocol, stages of concern questionnaire, and innovation configuration map. By the end of one school year, two out of the three teachers never used data to make instructional decisions, although the non-users both had moved closer toward employing the innovation in their classroom. Data indicated all teachers were aware of the innovation, but all three ended the study with high personal concerns, signifying that the minimal efforts made by the data coaches to resolve concerns were not successful. This study's small sample gave the research paradigm of data-based decision making an in-depth glimpse into the process of implementing data-based instructional decision making and the Data Coach position on three middle school campuses in one large northeast Texas district. digital.library.unt.edu/ark:/67531/metadc33164/
A Case Study of Tu and Vous Use in the French Dubbing and Subtitling in an American Film
Translation and subtitling has always been a complicated dimension of the motion picture industry for years. The problem of dealing with linguistic elements in films and conveying them to audiences of different languages across the globe encompasses many difficulties regarding forms and structures of other languages. One of the more highly researched topics in French linguistic studies has been the use of address pronouns and a range of aspects related to their use and interpretation. Many studies have been conducted over the last sixty years in order to determine and understand these variables. An analysis of several of these studies reveals the many complexities involved in second-person pronoun choice in the French language and the development of the idea of pronoun choice as an act of social identity. The focus of this study is to provide an analysis of the use of formal and informal address pronoun use in the French subtitling and dubbing of an American film, Maid in Manhattan, in order to add, on a broader level, a way to differentially examine perceived norms in a variety of contexts within this medium. digital.library.unt.edu/ark:/67531/metadc68037/
A Case Study of Undergraduate Course Syllabi in Taiwan
Higher education in Taiwan has been influenced by U.S. and Western practices, and syllabi represent one means to verify this. However, limited research exists in Taiwan on course syllabi and on similarities of syllabi with practices in other countries. In the U.S. as the paradigm shifted from teaching to learning and to the learning-centered context, scholars argued that syllabi should be learning-centered. Given the assumption that higher education in Taiwan is similar to U.S. higher education and the call for a learning-centered context, this qualitative research examined 180 undergraduate syllabi at a public university in Taiwan with a (traditional) syllabus component template and a learning-centered syllabus component template derived from the literature in the U.S. to describe (1) the contents of syllabi, and (2) the extent that syllabi in Taiwan were congruent to U. S. syllabus component templates. Syllabi at this university were highly congruent with the (traditional) syllabus component template and were congruent at the medium level with the learning-centered component template. About 90% of syllabi included 8 of 10 major components. Additional findings included: 70% of faculty were male, and 30% were female; more than 75% of the faculty earned their doctoral degrees from the United States or Europe; gender made no difference on inclusion of major components for both templates; there was no difference in inclusion of components on both templates for faculty who earned their doctoral degrees from the U.S. or Taiwan; a high percentage (80%) of college courses adopted English textbooks published in the U.S.; some differences existed and use of English in the syllabus and on components included in the syllabi. Based on these syllabi, it is evident that syllabi in Taiwan represent course planning and organization congruent to recommended practices in the United States. digital.library.unt.edu/ark:/67531/metadc28487/
Catered Learning: an Anthropological Approach to Understanding How Learning Styles of Participants and Teaching Styles of Instructors Affect Participants’ Perception, Motivation, and Performance
Organizations rely on their training departments to deliver adequate training for effective use of knowledge on the job to new and tenured employees. The transfer of learned knowledge and skills yields many positive outcomes for the employees, the trainers, and the organization as a whole. Such outcomes include improved productivity and efficiency, increased morale, work enjoyment, improved customer service, and improved shareholder satisfaction. In order to achieve these outcomes, training departments must employ skilled training personnel knowledgeable about curriculum design and creative with training delivery and learning environments. These requirements implementation will depends heavily on the experience level of training professionals. Training professionals need to understand their own learning styles and how to appropriately utilize strategies to target the various learning styles that exist in the classroom. Instructors must constantly monitor the learning environment and be able to make immediate changes to meet the needs of the participants when necessary. Participants themselves play an integral role in the effective transfer of learning from the classroom to the job. Learners’ backgrounds, life experiences, and motivation to learn are important considerations for designing a positive learning experience. When training programs cater to learners’ preferred learning styles with an appropriate learning environment in mind, the instructor, the learner, and the organization reap numerous benefits. More specifically, when learners’ learning styles are supported by their instructors’ teaching styles, the overall learning experience becomes optimized to the benefit of all stakeholders. digital.library.unt.edu/ark:/67531/metadc407835/
Cattle Capitol: Misrepresented Environments, Nineteenth Century Symbols of Power, and the Construction of the Texas State House, 1879-1888
State officials, between 1882 and 1888, exchanged three million acres of Texas Panhandle property for construction of the monumental Capitol that continues to house Texas government today. The project and the land went to a Chicago syndicate led by men influential in business and politics. The red granite Austin State House is a recognizable symbol of Texas around the world. So too, the massive tract given in exchange for the building, what became the "fabulous" XIT Ranch, also has come to symbolize the height of the nineteenth century cattle industry. That eastern and foreign capital dominated the cattle business during this period is lesser known, absorbed by the mythology built around the Texas cattle-trail period - all but at an end in 1885. This study examines the interaction of Illinois Republicans and Texas Democrats in their actions and efforts to create what have become two of Texas's most treasured symbols. digital.library.unt.edu/ark:/67531/metadc68017/
Centers of Invariant Differential Operator Algebras for Jacobi Groups of Higher Rank
Let G be a Lie group acting on a homogeneous space G/K. The center of the universal enveloping algebra of the Lie algebra of G maps homomorphically into the center of the algebra of differential operators on G/K invariant under the action of G. In the case that G is a Jacobi Lie group of rank 2, we prove that this homomorphism is surjective and hence that the center of the invariant differential operator algebra is the image of the center of the universal enveloping algebra. This is an extension of work of Bringmann, Conley, and Richter in the rank 1case. digital.library.unt.edu/ark:/67531/metadc283833/
Central Office Administrators' Perceptions of the Professional Learning Community Process
This study provides a qualitative interpretation of the work done by central office administrators in a school district in Texas as they supported and built capacity for the professional learning community (PLC) process over a five year time period. Literature by PLC scholars, especially R. DuFour, R.B. DuFour, Eaker, Hord, Hipp, Huffman, and Olivier, informed development of the study. In a school district of 19,000 students and 2,000 staff members, ten central office administrators were interviewed to gain their perceptions of their roles in the PLC process. Interviews were analyzed through the processes of initial, focused, and theoretical coding. Documents were examined and used as supplemental sources of data to corroborate the perspectives provided. Findings revealed the story of central office administrators who worked interdependently to support and build capacity in the implementation and sustainment of the PLC process. A thick description of the work based on their perceptions offers actions and behaviors of administrators specific to their roles and practices and protocols developed to hold the work together. A grounded theory was developed with regard to central office administrators' support and capacity-building for the PLC process. From the administrators' perceptions, six theoretical categories relating to central office support and capacity building of the PLC process emerged: 1) establishment, 2) deployment, 3) accountability for implementation, 4) adult learning, 5) collaboration, and 6) leadership development. The study contributes an interpretivist description of the involvement of central office in the PLC process and confirms the importance of the change process in the implementation of the PLC framework. digital.library.unt.edu/ark:/67531/metadc283851/
Challenge the Silence
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This collection of personal essays about incest, abuse, and depression explores the lasting effects of an invisible childhood. The essays follow the protagonist from the age of five to her early twenties. Her brother, at a young age, becomes sexually abusive of her and her sisters, and her parents fail to protect their daughters. The family is divided as the older girls strive to defend their little sisters, while their parents attempt to excuse their son. When her brother is finally sent away, the protagonist is left to salvage what remains of her relationships with her parents. digital.library.unt.edu/ark:/67531/metadc283840/
A Champion for the Chicano Community: Anita N. Martínez and Her Contributions to the City of Dallas, 1969-1973
Much has been published in Chicano studies over the past thirty to forty years; lacking in the historiography are the roles that Chicanas have played, specifically concerning politics in Dallas, Texas. How were Chicanas able to advance El Movimiento (the Mexican American civil rights movement)? Anita Martínez was the first woman to serve on the Dallas City Council and the first Mexican American woman to be elected to the city council in any major U.S. city. She served on the council from 1969 to 1973 and remained active on various state and local boards until 1984. Although the political system of Dallas has systematically marginalized Mexican American political voices and eradicated Mexican American barrios, some Mexican Americans fought the status quo and actively sought out the improvement of Mexican barrios and an increase in Mexican American political representation, Anita N. Martínez was one of these advocates. Long before she was elected to office, she began her activism with efforts to improve her children’s access to education and efforts to improve the safety of her community. Martinez was a champion for the Chicano community, especially for the youth. Her work for and with young Chicanos has earned her the moniker, “Defender of Dreams.” She created a chicano recreation center in Dallas, as well as various poverty programs and neighborhood beautification projects. Although she has remained relatively unknown, during her tenure on the Dallas City Council, between the years 1969 and 1973, Anita Martínez made invaluable, lasting contributions to the Chicano community in Dallas. digital.library.unt.edu/ark:/67531/metadc84190/
Changes in Gene Expression Levels of the Ecf Sigma Factor Bov1605 Under Ph Shift and Oxidative Stress in the Sheep Pathogen Brucella Ovis
Brucella ovis is a sexually transmitted, facultatively anaerobic, intracellular bacterial pathogen of sheep (Ovis aries) and red deer (Cervus elaphus). Brucella spp. infect primarily by penetrating the mucosa and are phagocytized by host macrophages, where survival and replication occurs. At least in some species, it has been shown that entry into stationary phase is necessary for successful infection. Brucella, like other alphaproteobacteria, lack the canonical stationary phase sigma factor ?s. Research on diverse members of this large phylogenetic group indicate the widespread presence of a conserved four-gene set including an alternative ECF sigma factor, an anti-sigma factor, a response regulator (RR), and a histidine kinase (HK). The first description of the system was made in Methylobacterium extorquens where the RR, named PhyR, was found to regulate the sigma factor activity by sequestering the anti-sigma factor in a process termed "sigma factor mimicry." These systems have been associated with various types of extracellular stress responses in a number of environmental bacteria. I hypothesized that homologous genetic sequences (Bov_1604-1607), which are similarly found among all Brucella species, may regulate survival functions during pathogenesis. To further explore the involvement of this system to conditions analogous to those occurring during infection, pure cultures of B. ovis cells were subjected to environments of pH (5 and 7) for 15, 30, and 45 minutes and oxidative (50mM H2O2) stress, or Spermine NONOate for 60 minutes. RNA was extracted and converted to cDNA andchanges in transcript levels of the sigma factor Bov1605 were measured using qPCR. Preliminary results indicate that under the exposure to Spermine NONOate there was little change in expression, but under oxidative stress expression of the sigma factor Bov1605 was 4.68-fold higher than that expressed under normal conditions. These results suggest that the sigma factor Bov1605 may be involved in oxidative stress defense during infection. Under acid stress (pH5), Bov1605 was found to be upregulated at 15 and 30 minutes, but after 45 and 60 minutes the time decreased. digital.library.unt.edu/ark:/67531/metadc177218/
The Changing Role and Responsibilities of Audit Committees in the United States
The corporate form that developed in the early 20th century created enormous pressure for corporate governance mechanisms to curb the power of corporate managers. Berle and Means, legal pluralists, warned about concentrating economic power in the hands of a small but powerful class of professional managers. They claimed this "new form of absolutism" required governmental oversight and viewed boards of directors as part of management, rather than monitors for shareholders. The Securities and Exchange Commission (SEC) proposed that corporations establish a special board committee, made up of "nonofficer members" in response to the McKesson & Robbins scandal of the late 1930s. My dissertation examines the evolution of the U.S. corporate audit committee through three specific time periods: (1) 1920-1954; (2) 1955-1986; and (3) 1987 to the passage of the Sarbanes-Oxley Act of 2002. My purpose is to determine if evolution of the audit committee throughout these periods has been a reform continually couched in symbolism or whether the audit committee concept has evolved into real reform, allowing proper corporate governance and mitigation of unchecked corporate power. My analysis is a traditional empirical analysis, relying on both primary and secondary sources to develop a coherent ordering of facts. I use narrative in a narrow sense as my historical methodology, examining patterns that emerge and interpreting facts to develop a clear understanding of demands for and uses of audit committees. I use a holistic approach in studying the data, using narrative to show how these patterns ensue from the historical data. digital.library.unt.edu/ark:/67531/metadc30519/
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. digital.library.unt.edu/ark:/67531/metadc500135/
The Character of Environmental Citizenship: Virtue Education for Raising Morally Responsible Individuals
Surely, moral education is not merely intended to result in theoretical knowledge, but instead attempts to change people's behavior. However, when examining and evaluating current trends in moral education, it appears that hitherto moral education has fallen short of its goal to make people better. In this paper, I try to determine what has caused this perceived failure of moral education and conclude that approaches that focus on teaching moral reasoning skills rather than on teaching actual moral content, i.e., values and virtues, are generally ineffective for moral improvement. However, a more traditional form of moral education, namely character education, appears to be a viable alternative to the moral reasoning methods. Since character education can be regarded as the practical application of virtue ethics, I first describe and evaluate virtue ethics and defend it against potential criticisms. I then examine what methods are effective for teaching virtues, and how such methods can potentially be incorporated into the curriculum. Since virtues cannot be taught through theoretical instruction, the acquisition of good habits constitutes the necessary foundation for the establishment of good moral character. Some methods that have been suggested for laying the foundation for virtue are the use of stories, role play, as well as the inclusion of physical and outdoor activities, etc. Furthermore, habituation constitutes the basis for the acquisition of good habits, and as such it requires the application of rewards and punishment by a caring tutor, who at the same time can serve as a role model for virtuous behavior. Finally, I extrapolate if and how character education can be employed to make people more environmentally conscious citizens. I conclude that environmental virtue or character education is the most effective method of environmental education, since it affects how an individual understands, views, and subsequently interacts with the natural environment. digital.library.unt.edu/ark:/67531/metadc271857/
The Characteristics of a Community of Practice in a National Writing Project Invitational Summer Institute
This qualitative naturalistic descriptive case study provides an understanding of the characteristics of a community of practice within a National Writing Project Invitational Summer Institute. This study utilized naturalistic, descriptive case study methodology to answer the research question: What characteristics of a community of practice are revealed by the perceptions and experiences of the fellows of a National Writing Project Invitational Summer Institute? Data were gathered in the form of interviews, focus group, observations, field notes, and participant reflective pieces. Peer debriefing, triangulation, thick rich description, as well as member checking served to establish credibility and trustworthiness in the study. Bracketing, a phenomenological process of reflecting on one's own experiences of the phenomenon under investigation was utilized as well. The findings of this study point to five analytic themes. These themes, ownership and autonomy, asset-based environment, relationships, socially constructed knowledge and practices, and experiential learning, intertwine to illuminate the three essential components which must be present for a community of practice to exist: joint enterprise, mutual engagement, and shared repertoire. Participants' portraits provide a description of their unique experiences as they moved fluidly between the periphery and core of the community of practice. digital.library.unt.edu/ark:/67531/metadc28461/
Characterization of Arthrobacter Globiformis Aspartate Transcarbamylase Concentrations of Substrates
This thesis consists of one major section with two subsections. The first subsection investigates the activity of Arthrobacter globiformis aspartate transcarbamylase's specific activity with increasing concentrations of the enzyme's substrate. Dihydroorotase (DHOase) activity was also measured with increasing concentrations of the substrate dihydroorotate. The second subsection collected data in order to classify the enzyme, resulting in a classification into the category of class A ATCases with bifunctional ATCase-DHOase complexes. The thesis provides evidence to broaden understanding of the ATCase and DHOase enzymes for members of the family that Arthrobacter belongs to. digital.library.unt.edu/ark:/67531/metadc271918/
Characterization of Ecg Signal Using Programmable System on Chip
Electrocardiography (ECG) monitor is a medical device for recording the electrical activities of the heart using electrodes placed on the body. There are many ECG monitors in the market but it is essential to find the accuracy with which they generate results. Accuracy depends on the processing of the ECG signal which contains several noises and the algorithms used for detecting peaks. Based on these peaks the abnormality in the functioning of the heart can be estimated. Hence this thesis characterizes the ECG signal which helps to detect the abnormalities and determine the accuracy of the system. digital.library.unt.edu/ark:/67531/metadc177242/
Characterization of Ionic Liquid As a Charge Carrier for the Detection of Neutral Organometallic Complexes Using Electrospray Ionization Mass Spectrometry
A novel application of ionic liquid as a charge carrier for the analysis and detection of neutral organometallic complexes using a mass spectrometer has been presented. The mass spectrometer detects only charged compounds which raise a difficulty in analyzing a neutral molecule that lacks a basic site to associate with charge. Therefore, an effective way of providing charge has always been an area of keen interest in the field of mass spectrometry. Ionic liquids have a very fascinating property of forming a cation-? interaction with other molecules to give a charged complex. In order to take advantage of this, it is important to know the geometric structure of the complex. Advanced methodologies like hydrogen-deuterium exchange and computational calculations have been used assisting in better understanding of the structure of the ionic liquid complexes. digital.library.unt.edu/ark:/67531/metadc149615/