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1,687 Matching Results
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Perceived Racial Discrimination and Psychiatric Outcomes among Asian Americans
The present study related generational status, family dynamics, and perceptions of racial discrimination (PRD) to acute psychiatric outcomes among a nationally representative Asian American sample (N = 2095), using data from the National Latino and Asian American Study (NLAAS). High self-reports of PRD were correlated with endorsement of clinical depression and suicidality as predicted. Regression analyses suggested that high PRD, low family cohesion, and high family conflict served as significant predictors of poor mental health independently, but moderator hypotheses predicting the interaction of these factors were not supported. Clinical and research implications are provided.
Date:
December 2009
Creator:
Varghese, Anita
System:
The UNT Digital Library
The Impact of Legal Sanctions on Recidivism Rates among Male Perpetrators of Domestic Violence
Using a Cox proportional hazards regression model, this dissertation explores three factors currently not addressed in the literature on men who batter women and who are court ordered to participate in a battering intervention program. These factors are the cumulative effects of civil and criminal legal sanctions (dose-response of sanctions) for domestic violence related offenses on recidivism, reduced opportunities to recidivate, and whether the number of legal sanctions imposed has an effect on how long a man maintains his non-recidivism status. Because one domestic violence case may involve multiple sanctions, this study uses the Legal Sanction Dose-Response Index to gauge the cumulative impact of civil and criminal sanctions upon recidivism of domestic violence. The Cox proportional hazards model indicates that the risk of recidivism is 45% lower for men who experienced two legal sanctions (typically arrest and probation) in response to the index case, relative to men who experienced one legal sanction (typically civil protective order). In other words, those with two legal sanctions are able to maintain their non-recidivism status longer relative to those with one sanction. Men with prior criminal court involvement for domestic violence related offenses are more likely to recidivate. Additionally, rather than incarceration reducing opportunities …
Date:
December 2009
Creator:
Cosimo, S. Deborah
System:
The UNT Digital Library
Growth and Characterization of β-Iron Disilicide, β-Iron Silicon Germanide, and Osmium Silicides
The semiconducting silicides offer significant potential for use in optoelectronic devices. Full implementation of the materials, however, requires the ability to tailor the energy gap and band structure to permit the synthesis of heterojunctions. One promising approach is to alloy the silicides with Ge. As part of an investigation into the synthesis of semiconducting silicide heterostructures, a series of β-Fe(Si1−xGex)2 epilayer samples, with nominal alloy content in the range 0 < x < 0.15, have been prepared by molecular beam epitaxy on Si(100). I present results of the epitaxial and crystalline quality of the films, as determined by reflection high-energy electron diffraction, Rutherford backscattering spectroscopy, and double crystal x-ray diffraction, and of the band gap dependence on the alloy composition, as determined by Fourier transform infrared spectroscopy. A reduction in band gap was observed with increasing Ge content, in agreement with previous theoretical predictions. However Ge segregation was also observed in β-Fe(Si1−xGex)2 epilayers when x > 0.04. Osmium silicide films have been grown by molecular beam epitaxy on Si(100). The silicides have been grown using e-beam evaporation sources for both Os and Si onto Si(100) substrates at varying growth rates and temperatures ranging from 600-700ºC. The resulting films have been …
Date:
August 2009
Creator:
Cottier, Ryan James
System:
The UNT Digital Library
The Value of Everything: Ranking and Association with Encyclopedic Knowledge
This dissertation describes WikiRank, an unsupervised method of assigning relative values to elements of a broad coverage encyclopedic information source in order to identify those entries that may be relevant to a given piece of text. The valuation given to an entry is based not on textual similarity but instead on the links that associate entries, and an estimation of the expected frequency of visitation that would be given to each entry based on those associations in context. This estimation of relative frequency of visitation is embodied in modifications to the random walk interpretation of the PageRank algorithm. WikiRank is an effective algorithm to support natural language processing applications. It is shown to exceed the performance of previous machine learning algorithms for the task of automatic topic identification, providing results comparable to that of human annotators. Second, WikiRank is found useful for the task of recognizing text-based paraphrases on a semantic level, by comparing the distribution of attention generated by two pieces of text using the encyclopedic resource as a common reference. Finally, WikiRank is shown to have the ability to use its base of encyclopedic knowledge to recognize terms from different ontologies as describing the same thing, and thus …
Date:
December 2009
Creator:
Coursey, Kino High
System:
The UNT Digital Library
Negative affect and positive symptoms of psychosis.
The current study utilized structural equation modeling (SEM) to examine the factor-to-factor relations and temporal associations between disturbances in negative affect (NA) and positive symptoms of psychosis (PP). Data were drawn from a large, public-domain data set (MacArthur Violence Risk Assessment Study). A dimensional approach was used to conceptualize and identify latent variables of NA (depression, anxiety, and guilt) and PP (hallucinations, delusions, and thought disorder) among individuals with a diagnosis of primary psychotic disorder. Results showed that anxiety, guilt, and depressed mood modeled an NA latent variable, and that hallucinations and unusual thought content modeled a PP latent variable. As predicted, results revealed strong, significant cross-sectional (synchronous) associations between NA and PP at each measured time-frame, suggesting that NA and PP occurred concurrently within the sample. Contrary to predictions, no significant cross-lagged effect between NA and PP was identified (10 weeks and 20 weeks respectively).
Date:
December 2009
Creator:
Crutchfield, Audra
System:
The UNT Digital Library
The Effectiveness of Business Leadership Practices among Principals on Student Achievement on Public School Campuses in Texas
The purpose of this descriptive study was to determine if business leadership practices by Texas public school principals have an impact on principals' campus student achievement in mathematics and reading, as measured by TAKS scores. The survey instrument was the Leadership Assessment Instrument (LAI), developed by Warren Bennis in 1989. The survey instrument was electronically distributed to a sample of 300 public school principals in Texas. Of the 300, 140 principals completed and returned the survey, for a response rate of 47%. The Statistical Package for the Social Sciences (SPSS), version 16.0, was used for the analysis of data, which included descriptive statistics, analysis of variance, and regression. In addition, reliability for the LAI was also calculated. The LAI consists of the following five categories of effective business practices: focused drive, emotional intelligence, building trust, conceptual thinking, and systems thinking. No significant relationships were found between principals' use of LAI elements and student achievement in mathematics and reading. However, the lack of significant relationships between the business model as used in public schools and student achievement reveals that current models of principal preparation programs do not result in school leaders who are adequately prepared to increase student achievement. Further research …
Date:
December 2009
Creator:
Cooper, Kary M.
System:
The UNT Digital Library
Hypoxic and hyperoxic incubation affects the ductus arteriosus in the developing chicken embryo (Gallus gallus).
Developing chicken embryos have two ductus arteriosus (DA) that shunt blood away from the lungs and to the chorioallantoic membrane, the embryonic gas exchanger. In mammals, DA closure is stimulated by an increase in blood gas O2 that occurs as the animal begins to breathe with its lungs. The goal of this study was to determine the influence of O2 levels during incubation on the vascular reactivity and morphology of the O2-sensitive DA and to examine the effects of changing O2 levels during late incubation on the morphology of the DA from chicken embryos. In comparison to normoxia, hypoxia (15%) reduced venous O2 levels in day 16 and day 18 embryos and reduced aircell O2 values in day 16, day 18, and internally pipped (IP) embryos, whereas hyperoxia (30%) increased venous O2 levels and aircell O2 level in day 16, day 18, and IP embryos. In comparison to normoxia, hypoxia delayed closure of the DA, whereas hyperoxia accelerated DA closure. In comparison to the left DA from externally pipped (EP) normoxic embryos, the left DA from EP hypoxic embryos exhibited a significantly weaker contractile response to O2. The DA from day 18 hypoxic embryos exhibited a significantly weaker contractile response …
Date:
December 2009
Creator:
Copeland, Jennifer
System:
The UNT Digital Library
Francis Poulenc's Sonata for Horn, Trumpet and Trombone: A Structural Analysis Identifying Historical Significance, Form and Implications for Performance
Research has been conducted on Francis Poulenc and his prominent 20th century sonata for brass instruments. Poulenc and members of the French compositional collaboration known as Les Six have all been subjects of research. Francis Poulenc's Sonata for Horn Trumpet and Trombone is a crucial piece in the development of brass chamber music during the 20th century. As one of the first works written for modern brass instruments, it demonstrates a highly crafted compositional style representative of Poulenc's early period. Research includes background and historical significance of the Sonata, analysis of form and compositional techniques, biographical information on Francis Poulenc and the members of Les Six and a section on implications for the performance of the work. This study is necessary due to the lack of research available for the piece especially considering its relevance to the development of brass chamber music. This study explores the compositional style of Francis Poulenc and his contribution to the brass ensemble repertoire.
Date:
August 2009
Creator:
Cord, John T.
System:
The UNT Digital Library
Factors of the Geriatric Depression Scale that may Distinguish between Four Cognitive Diagnostic Groups: Normal, Mild Cognitive Impairment, Dementia of the Alzheimer's Type, and Vascular Dementia
The purpose of the current study was to explore the relationship between cognitive status and depression in a sample of geriatric patients. Participants included 282 geriatric patients ranging in age from 65 to 96 years who were classified according to diagnosis as: DAT, VaD, MCI, and Norm. All were referred for neurocognitive testing from the Geriatric Assessment Program (GAP) at the University of North Texas Health Science Center (UNTHSC) in Fort Worth, Texas. This study sought to identify factor structures for two versions of the GDS using a geriatric sample of cognitively impaired and intact patients. It then compared these factors to each other to determine whether the GDS-15 is truly a shorter version of the GDS-30. These were then compared to a previously determined factor structure. This study explored whether the four-factors of the GDS-30 are able to differentiate cognitive diagnostic groups. Further, this study sought to identify whether the severity of cognitive decline impacted GDS factor score for each of the cognitively impaired groups. Results revealed a two-factor model of the GDS - 15 and a four-factor model with the GDS - 30. The GDS-15 factors did not differ from the first two factors of the GDS-30. Comparison …
Date:
December 2009
Creator:
Cornett, Patricia F.
System:
The UNT Digital Library
The Impact of IT Capability on Employee Capability, Customer Value, Customer Satisfaction, and Business Performance
This study empirically examines the impact of IT capability on firms' performance and evaluates whether firms' IT capabilities play a role in improving employee capability, customer value, customer satisfaction, and ultimately business performance. The results were based on comparing the business performance of the IT leader companies with that of control companies of similar size and industry. The IT leader companies were selected from the Information Week 500 list published annually from 2001 to 2004. For a company to be selected as IT leaders, it needed to be listed at least twice during the period. Furthermore, it had to be listed in the American Customer Satisfaction Index (ACSI) so that its customer satisfaction level could be assessed. Standard & Poor's Compustat and the ACSI scores were used to test for changes in business performance. The study found that the IT leaders had a raw material cost measured by cost-of-goods-sold to sales ratio (COGS/S) than the control companies. However, it found no evidence that firms' IT capability affects employee capability, customer value, customer satisfaction, and profit. An important implication from this study is that IT becomes a commodity and an attempt to gain a competitive advantage by overinvesting in IT may …
Date:
August 2009
Creator:
Chae, Ho-Chang
System:
The UNT Digital Library
Significant Influences in the Composition of Hendrik Hofmeyr's Song Cycle, Alleenstryd
The poet of this cycle, Sydney Vernon Petersen, was a man who faced great adversity during Apartheid. The title of this cycle, Alleenstryd, is an Afrikaans term for 'a struggle alone.' Petersen was of mixed heritage or "Coloured" and born in South Africa in 1914. He died in 1987. His most important works in Afrikaans poetry were published between 1948 and 1965. This cycle specifically focuses on the relationship between the poet and his community, the isolation he endured within that community, the depths of despair he felt and how he overcame those obstacles to finally achieve a sense of self-worth. This group of poems, first published as an anthology by Tafelberg Press in 1979, became the source of inspiration for the composer Hendrik Hofmeyr. The purpose of this research is to identify the significant social, political and musical influences on the composer which contributed to the composition of Alleenstryd (1996), especially the significance of his self-imposed exile. Also, the Afrikaans language, a derivative of 17th century Dutch, is a language dear to its speakers but not widely accessible or familiar to most other nations. Hopefully this research will provide more information and make the language, its composers and the …
Date:
August 2009
Creator:
Cupido, Conroy Alan
System:
The UNT Digital Library
Thermophysical, Interfacial and Decomposition Analyses of Polyhydroxyalkanoates introduced against Organic and Inorganic Surfaces
The development of a "cradle-to-cradle" mindset with both material performance during utilization and end of life disposal is a critical need for both ecological and economic considerations. The main limitation to the use of the biopolymers is their mechanical properties. Reinforcements are therefore a good alternative but disposal concerns then arise. Thus the objective of this dissertation is to investigate a biopolymer nanocomposite where the filler is a synthetically prepared layer double hydroxide (inorganic interface); and a biopolymer paper (organic interface) based coating or laminate. The underlying issues driving performance are the packing density of the biopolymer and the interaction with the reinforcement. Since the polyhydroxyalkanoates or PHAs (the biopolymers used for the manufacture of the nanocomposites and coatings) are semicrystalline materials, the glass transition was investigated using dynamic mechanical analysis (DMA) and dielectric spectroscopy (DES), whereas the melt crystallization, cold crystallization and melting points were investigated using differential scanning calorimetry (DSC). Fourier transform infrared (FTIR) spectroscopy was used to estimate crystallinity in the coated material given the low thermal mass of the PHA in the PHA coating. The significant enhancement of the crystallization rate in the PHA nanocomposite was probed using DSC and polarized optical microscopy (POM) and analyzed …
Date:
December 2009
Creator:
Dagnon, Koffi Leonard
System:
The UNT Digital Library
Metro Environmental: The impact of training HVAC technicians using the SightPros-VirTechs system for remote, wireless, Internet video assistance.
This qualitative study explored the overall impact of training HVAC technicians using the SightPros-VirTechs system for remote, wireless, internet video assistance at a small HVAC company, Metro Environmental. John Thomason, the president/co-owner developed a website and a new SightPros communication tool that allows wireless, one-on-one, just-in-time, high-quality, video-monitored instructions between an expert at one site and a technician at another site. Metro Environmental successfully used the SightPros-VirTechs system to train a new apprentice remotely. The apprentice and expert changed their normal and routine physical activities because the expert worked remotely and the apprentice worked on-site. Within just a few months, the apprentice proved competent enough to go to customer accounts without more experienced technicians nearby. The technicians express excitement about the SightPros communication tool as a way to contact remote experts whenever needed. The customer and business contacts also give good reviews and suggest other benefits. The expert permanently captures the communications so the company can use the saved video for many applications, especially training. The dissertation provides a list of recommendations to trainers/educators for similar applications.
Date:
May 2008
Creator:
Daily, Ellen Wilmoth Matthews
System:
The UNT Digital Library
The Parent Participation Discourse of a Community School: Diverse Ideas and Perceptions about Educational Partnership at an Inner City Community School
Despite the widespread recommendation that schools "collaborate" with parents, little is found in the literature to elaborate on what this term or the common synonym "partnership" means, and further, how schools can invite diverse parental contributions to the table of educational discourse. The current study looks to contribute to the literature by analyzing the parent participation discourse in one community elementary school, utilizing critical discourse analysis and ethnographic observations. The findings reveal both school and parents' conceptions of the parents' partnership role as ancillary to that of the school's and the subsequent lack of true collaboration so advocated by the literature. Implications arise from this analysis which calls into question the examples of "collaboration" found in the literature, given the lack of theorizing regarding what collaboration inside of parent participation means. Contributions may shed light on the unintentional inequality of diverse parents in an effort toward true collaboration utilizing both the European American, middle class contributions of the educational institution alongside those of non-mainstream parents in creating an authentic educational atmosphere for diverse students.
Date:
August 2009
Creator:
Coe, Alice Elizabeth
System:
The UNT Digital Library
Processing, structure property relationships in polymer layer double hydroxide multifunctional nanocomposites
Dan Beaty (1937-2002) was a prolific composer, pianist, researcher, educator, and writer. His large compositional output included chamber works, choral works, songs, orchestral pieces, electronic music, and keyboard works. Beaty was well versed in traditional Western music as well as the more avant-garde and perplexing idioms of the twentieth century. Beaty's compositions reflect the many fascinating, if not always popular, musical trends of his time. His music encompasses styles from serial to jazz, shows compositional influences from Arnold Schoenberg to Indonesian music, and demonstrates thought-provoking and highly intellectual craftsmanship. This document explores several of Beaty's songs through a discussion of the composer's life and compositional process. Songs included in this document are Three Weeks Songs, October, November, A Sappho Lyric, Love Song, That Night When Joy Began, and War Lyrics. This document was written to accompany the author's DMA Lecture-Recital at the University of North Texas. Unfortunately, Beaty's vocal music was never published and is mostly unknown. One goal of the project was to initiate interest in Beaty's songs. Through this document, Lecture-Recital, and additional performances, considerable strides have been made to bring Beaty's songs to new audiences throughout the United States. In addition, the author has received permission from …
Date:
August 2009
Creator:
Ogbomo, Sunny Minister
System:
The UNT Digital Library
The Politics of Sympathy: Secularity, Alterity, and Subjectivity in George Eliot's Novels
This study examines the practical and political implications of sympathy as a mode of achieving the intercommunicative relationship between the self and the other, emphasizing the significance of subjective agency not simply guided by the imperative category of morality but mainly enacted by a hybrid of discourses through the interaction between the two entities. Scenes of Clerical Life, Eliot's first fictional narrative on illuminating the intertwining relation of religion to secular conditions of life, reveals that the essence of religion is the practice of love between the self and the other derived from sympathy and invoked by their dialogic discourses of confession which enable them to foster the communality, on the grounds that the alterity implicated in the narrative of the other summons and re-historicizes the narrative of the subject's traumatic event in the past. Romola, Eliot's historical novel, highlights the performativity of subject which, on the one hand, locates Romola outside the social frame of domination and appropriation as a way of challenging the universalizing discourses of morality and duty sanctioned by the patriarchal ideology of norms, religion, and marriage. On the other hand, the heroine re-engages herself inside the social structure as a response to other's need for …
Date:
December 2009
Creator:
Koo, Seung-Pon
System:
The UNT Digital Library
Interaction of learning approach with concept integration and achievement in a large guided inquiry organic class.
A study was conducted to investigate the relationship of students' concept integration and achievement with time spent within a topic and across related topics in a large first semester guided inquiry organic chemistry class. Achievement was based on evidence of algorithmic problem solving; and concept integration was based on demonstrated performance explaining, applying, and relating concepts to each other. Twelve individual assessments were made of both variables over three related topics - acid/base, nucleophilic substitution and electrophilic addition reactions. Measurements included written, free response and ordered multiple answer questions using a classroom response system. Results demonstrated that students can solve problems without conceptual understanding. A second study was conducted to compare the students' learning approach at the beginning and end of the course. Students were scored on their preferences for a deep, strategic, or surface approach to learning based on their responses to a pre and post survey. Results suggest that students significantly decreased their preference for a surface approach during the semester. Analysis of the data collected was performed to determine the relationship between students' learning approach and their concept integration and achievement in this class. Results show a correlation between a deep approach and concept integration and a …
Date:
August 2009
Creator:
Mewhinney, Christina
System:
The UNT Digital Library
"Now His Time Really Seems to Have Come": Ideas about Mahler's Music in Late Imperial and First Republic Vienna
In Vienna from about 1918 until the 1930s, contemporaries perceived a high point in the music-historical significance of Mahler's works, with regard to both the history of compositional style and the social history of music. The ideas and meanings that became attached to Mahler's works in this milieu are tied inextricably to the city's political and cultural life. Although the performances of Mahler's works under the auspices of Vienna's Social Democrats are sometimes construed today as mere acts of political appropriation, David Josef Bach's writings suggest that the innovative and controversial aspects of Mahler's works held social value in line with the ideal of Arbeiterbildung. Richard Specht, Arnold Schoenberg, and Theodor Adorno embraced oft-criticized features in Mahler's music, regarding the composer as a prophetic artist whose compositional style was the epitome of faithful adherence to one's inner artistic vision, regardless of its popularity. While all three critics addressed the relationship between detail and whole in Mahler's music, Adorno construed it as an act of subversion. Mahler's popularity also affected Viennese composers during this time in obvious and subtle ways. The formal structure and thematic construction of Berg's Chamber Concerto suggest a compositional approach close to what his student Adorno described …
Date:
December 2009
Creator:
Kinnett, Forest Randolph
System:
The UNT Digital Library
Moderators of the sociocultural internalization-body dissatisfaction relationship among female undergraduates.
The sociocultural model of eating pathology is an empirically-supported model explaining eating disorder etiology. The model poses that body dissatisfaction and subsequent eating pathology stems from the unrealistic standards formulated by Westernized society. Although the model has strong empirical support, variables within the model do not account for 100% of the variance in disordered eating. Thus, the current researcher attempted to explore potential moderating factors in the sociocultural model of eating disorders that may help to explain variance currently unaccounted for. In particular, the researcher focused on the relationship between sociocultural internalization and body dissatisfaction, given that this relationship has not been previously explored within the literature. Based on theoretical support, the researcher chose several potential variables to test, including perfectionism, neuroticism, body surveillance, and shame. Primary analyses tested each variable for moderating effects using hierarchical moderated regression, but no significant findings were shown. Results of post hoc analyses showed all variables had significant mediating effects, with the exception of self-oriented perfectionism. The discussion section addresses consistency with previous research, limitations of the present study, treatment implications and guidelines for future research.
Date:
December 2009
Creator:
Latimer-Kern, Kelsey M.
System:
The UNT Digital Library
Antecedents of Commitment to and Support of a Proposed Change Initiative in a Southern Baptist Congregation.
This study extends research findings directed at a micro-focus of change by assessing individual organizational members' perspectives and psychological constructs influencing change efforts by an organization. The change initiative in question regards the construction of a new facility and subsequent relocation to said facility. Moral commitment to the organization (negative), change initiative's fit with organizational vision, and social influence significantly contributed to variance in members' affective commitment to change. Trust in leadership and normative commitment to the organization (NCO) significantly contributed to variance in members' normative commitment to change. Continuance commitment to the organization and participation (negative) significantly contributed to variance in members' continuance commitment to change. NCO, change initiative's fit with organizational vision, and participation significantly contributed to variance in support of the proposed change initiative. Affective commitment to the organization (negative), NCO (negative), trust in leadership (negative), and disruption of influence significantly contributed to variance in members' intent to leave the organization.
Date:
August 2009
Creator:
Lee, Audra
System:
The UNT Digital Library
A Longitudinal Examination of Factors Associated with Custodial Grandparenting: A Test of Moderated Mediation
The purpose of this study was to explore the following relationships: (a) how moderating factors (gender, age, ethnicity, social support, marital status, reason for role assumption and number of grandchildren in the home) can influence the mediating role of resiliency, and (b) how resiliency may mediate the negative effects of raising grandchildren (role demands, life disruptions, and difficulties with grandchildren) on grandparent adjustment over time. Resiliency was hypothesized to have the greatest effect on custodial grandparents who experienced the most stress (i.e., older, single, Caucasian males lacking social support and raising more than one grandchild). Mediation was assessed using structural equation modeling. Results indicated resilience mediated the relationship between role assumptions (i.e., role demands and life disruptions) and grandparent adjustment; however, resilience did not mediate the relationship between grandchild characteristics and grandparent adjustment. Due to the small number of custodial grandfathers (n = 14), non-married grandparents (n = 29), non-Caucasian grandparents (n = 10), the small number of grandparents who assumed the custodial role for less ambiguous reasons (n = 24), and the number of custodial grandparents with more than one grandchild residing in the home (n = 29) participating within the study, hierarchical multiple regressions were only conducted to …
Date:
December 2009
Creator:
Moske, Amanda Kay
System:
The UNT Digital Library
Fictionalized Indian English Speech and the Representations of Ideology in Indian Novels in English
I investigate the spoken dialogue of four Indian novels in English: Mulk Raj Anand's Untouchable (1935), Khushwant Singh's Train to Pakistan (1956), Rasipuram Krishnaswami Narayan's The World of Nagaraj (1990), and Rohinton Mistry's Family Matters (2002). Roger Fowler has said that literature, as a form of discourse, articulates ideology; it is through linguistic criticism (combination of literary criticism and linguistic analyses) that the ideologies in a literary text are uncovered. Shobhana Chelliah in her study of Indian novels in English concludes that the authors use Indian English (IndE) as a device to characterize buffoons and villains. Drawing upon Fowler's and Chelliah's framework, my investigation employs linguistic criticism of the four novels to expose the ideologies reflected in the use of fictionalized English in the Indian context. A quantitative inquiry based on thirty-five IndE features reveals that the authors appropriate these features, either to a greater or lesser degree, to almost all their characters, suggesting that IndE functions as the mainstream variety in these novels and creating an illusion that the authors are merely representing the characters' unique Indian worldviews. But within this dialect range, the appropriation of higher percentages of IndE features to specific characters or groups of characters reveal …
Date:
August 2009
Creator:
Muthiah, Kalaivahni
System:
The UNT Digital Library
Children's Spiritual Development: Analysis of Program Practices and Recommendations for Early Childhood Professionals.
The purpose of this study was to determine the extent to which faith-based preschools promote spiritual development in preschoolers. The participants in the study were faith-based early childhood teachers and administrators from seven states. Early childhood professionals representing 11 Christian faith traditions completed written surveys or online surveys. A total of 201 faith-based educators completed the survey; 20 respondents participated in semi-structured interviews. The concurrent triangulation mixed-method design provided data on 8 program dimensions which support children's spiritual development: prayer, Bible literacy, worship, building character, service opportunities, assessment, parental involvement and context. I analyzed quantitative data using descriptive and inferential statistics. All items were examined using mean, standard deviation, frequency, and percentages. Qualitative data gathered from semi-structured interviews were coded and analyzed using NVivo8® qualitative analysis software (QSR International, Inc., Cambridge, MA, http://www.qsrinternational.com). From this data I identified the extent to which faith-based preschool programs support children's spiritual development through the practices of prayer, Bible literacy, worship, building character, service opportunities, assessment, parental involvement and context. Data analyses revealed statistically significant differences in faith-based teachers' hours of training in children's spiritual development across all program practice dimensions. A key finding of the study was that training in children's spiritual development …
Date:
December 2009
Creator:
Myers, Joyce Eady
System:
The UNT Digital Library
Metabolic, cardiac and ventilatory regulation in early larvae of the South African clawed frog, Xenopus laevis.
Early development of O2 chemoreception and hypoxic responses under normoxic (150 mmHg) and chronically hypoxic (110 mmHg) conditions were investigated in Xenopus laevis from hatching to 3 weeks post fertilization. Development, growth, O2 consumption, ventilatory and cardiac performance, and branchial neuroepithelial cells (NEC) density and size were determined. At 3 days post fertilization (dpf), larvae started gill ventilation at a rate of 28 ± 4 beats/min and showed increased frequency to 60 ± 2 beats/min at a PO2 of 30 mmHg. Also at 3 dpf, NECs were identified in the gill filament buds using immunohistochemical methods. Lung ventilation began at 5 dpf and exhibited a 3-fold increase in frequency from normoxia to a PO2 of 30 mmHg. Hypoxic tachycardia developed at 5 dpf, causing an increase of 20 beats/min in heart rate, which led to a 2-fold increase in mass-specific cardiac output at a PO2 of 70 mmHg. At 10 dpf, gill ventilatory sensitivity to hypoxia increased, which was associated with the increase in NEC density, from 15 ± 1 to 29 ± 2 cells/mm of filament at 5 and 10 dpf, respectively. Unlike the elevated rate, cardiac and ventilatory volumes were independent of acute hypoxia. Despite increased cardioventilatory frequency, …
Date:
December 2009
Creator:
Pan, Tien-Chien
System:
The UNT Digital Library