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272 Matching Results
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Work-family responsiveness in organizations: The influence of resource dependence and institutionalization on program adaptation
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Changes in workforce demographics, employee sentiments, and working conditions have increased attention on employees' needs to balance the demands of work life and family life. Despite apparent growing interest among companies to be responsive to these needs, the number of companies demonstrating high levels of work-family responsiveness is relatively small. The frameworks of resource dependence theory and institutional theory were used to develop a model to explain differences in work-family responsiveness among for-profit companies. The theoretical models were tested on survey data collected through a stratified random sample of 692 for-profit companies. The data were further enhanced with secondary data sources. While the institutional model explained more variance in work-family responsiveness than the resource dependence model, a model combining both theories best explains work-family responsiveness among for-profit companies. High industry-region diffusion of family-friendly benefits was one of several strong predictors of work-family responsiveness. Also, the greater the proportion of professionals in a company's industry, the greater was the level of work-family responsiveness. Companies that measured effectiveness outcomes were more likely to offer family-friendly benefits. The same was true for companies with more positive assessments regarding the impact of their family-friendly benefits. Organizations that were large, publicly traded, or had human …
Date:
May 2000
Creator:
Ruggiere, Paul
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Virginia Carter Smith: Her Career and Contributions to Advancement in Higher Education
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Most research studies of women in the college and university advancement profession measure the number of women in advancement positions, report their corresponding salaries and reflect on the differences between male and female employees in the same position. Little research explores how women achieve high ranking advancement positions and very few provide an analysis of the characteristics, influences and careers of successful female advancement professionals. This dissertation describes the life and work of Virginia Carter Smith, founding editor of the Council for Advancement and Support of Education's award winning publication CURRENTS. The career and contributions of Virginia Carter Smith are relevant and helpful to advancement professionals in colleges, universities and K-12 institutions. This study explores Smith's formative years as a child, describes her educational and extra-curricular preparation and identifies individuals who influenced her life and provided direction for her future. It also examines Smith's role in the formation and direction of CASE and CURRENTS. Smith successfully launched CURRENTS in 1975 when few women held senior-level positions in advancement-related fields. With Smith's contributions, CASE became the dominate professional organization for advancement professionals working in educational institutions, and CURRENTS continues to be an exemplary professional development periodical for individuals working in advancement. …
Date:
May 2000
Creator:
Russell, Kimberly A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of an Oral History Interview on Counselor Trainees' Confidence and Couples' Intimacy
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A major concern many counselor trainees face when preparing to see their first couple-client is that of confidence because they have had little to no experience in interacting in a professional capacity with couples. Many beginning counselors experience anxiety, which can inhibit their effectiveness with clients (Scanlon & Baille, 1994). Introducing counselor trainees to a relatively non-threatening interaction with couples might reduce the initial anxiety that characterizes the neophyte counselor venturing into new clinical territory. The interaction may also enhance feelings of warmth and closeness of the couples. John Gottman's Oral History Interview (Gottman, 1999) was the protocol used in the interaction between trainee and couple. An instrument developed for this study to measure couple counseling confidence, the State Trait Anxiety Inventory (Spielberger, 1983), and the Personal Assessment of Intimacy in Relationships (Schaefer & Olson, 1981) were used to assess levels of counselor confidence, counselor anxiety, and couple intimacy, respectively. The confidence instrument and State-Trait Anxiety Inventory were administered to 37 students who were enrolled in four graduate level introductory couple counseling classes and who interviewed couples, as well as to 34 counselor-trainees who were enrolled in five graduate level counseling courses other than couple counseling and who did not …
Date:
May 2003
Creator:
Toler, Jane K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Nightingale in Poetry and Music
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This thesis surveys a variety of songs and arias for high soprano which feature the nightingale; examines the musical elements that symbolize, refer to, or imitate the nightingale; and compares these musical elements with transcriptions of the nightingale's song. The first chapter reviews the symbolic development of the nightingale and its role in poetry and literature. The interior chapters address a selection of musical compositions that feature the nightingale and its song. The final chapter establishes a relationship between the sound of the actual sound of the nightingale and the musical gestures created by composers to imitate the nightingale.
Date:
May 2003
Creator:
Blizzard, Amy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Response Restriction on Non-Socially Maintained Self-Injury
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This study examined the effects of response restriction (blocking and protective equipment) on subsequent durations of self-injury with two female participants with developmental disabilities. First, a functional analysis was conducted with each participant to identify potential maintaining variables of the self-injury. Second, access to the response was systematically restricted in a multiple schedule restriction paradigm. A baseline extended alone was conducted without the restriction component in place as a control condition. For one participant the results suggested that response restriction may have increased subsequent durations of responding once the restriction element was removed. For a second participant responding did not appear to be affected by the restriction component.
Date:
May 2003
Creator:
Blevins, Travis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Computational Studies of Catalysis Mediated by Transition Metal Complexes
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Computational methods were employed to investigate catalytic processes. First, DFT calculations predicted the important geometry metrics of a copper–nitrene complex. MCSCF calculations supported the open-shell singlet state as the ground state of a monomeric copper nitrene, which was consistent with the diamagnetic character deduced from experimental observations. The calculations predicted an elusive terminal copper nitrene intermediate. Second, DFT methods were carried out to investigate the mechanism of C–F bond activation by a low-coordinate cobalt(I) complex. The computational models suggested that oxidative addition, which is very rare for 3d metals, was preferred. A π–adduct of PhF was predicted to be a plausible intermediate via calculations. Third, DFT calculations were performed to study ancillary ligand effects on C(sp3)–N bond forming reductive elimination from alkylpalladium(II) amido complexes with different phosphine supporting ligands. The dimerization study of alkylpalladium(II) amido complexes indicated an unique arrangement of dative and covalent Pd-N bonds within the core four-membered ring of bimetallic complexes. In conclusion, computational methods enrich the arsenal of methods available to study catalytic processes in conjunction with experiments.
Date:
May 2019
Creator:
Jiang, Quan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Who is Who in Zimbabwe's Armed Revolution? Representation of the ZAPU/ZIPRA and the ZANU/ZANLA in High School History Textbooks Narratives of the Liberation War
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The liberation war was a watershed event in the history of Zimbabwe. According to the ZANU PF (Zimbabwe African National Union Patriotic Front) ruling elites, an understanding of the common experiences of the people during the liberation war provides the best opportunity to mold a common national identity and consciousness. However, the representation of important historical events in a nation's history is problematic. At best events are manipulated for political purposes by the ruling elites, and at the worst they are distorted or exaggerated. In Zimbabwe, the representation of the ZAPU/ZIPRA and the ZANU/ZANLA as liberation movements in high school history textbooks during the armed struggle is a hot potato. This study critically examined and explored the contested "representational practices" of the ZAPU/ZIPRA and the ZANU/ZANLA as liberation movements during the Zimbabwean armed revolution. By means of qualitative content analysis, seven high school history textbooks from Zimbabwe were analyzed. Drawing from postcolonial perspectives and insights, particularly Fanon's concept of the pitfall of national consciousness, the study unveiled the way in which Zimbabwean high school textbooks portrayed the ZAPU/ZIPRA and the ZANU/ZANLA as very different liberation movements whose roles and contributions were unequal. High school textbooks depicted the ZANU/ZANLA as a …
Date:
May 2019
Creator:
Sibanda, Lovemore
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Further Evaluation of Individual and Synthesized Contingencies within Functional Analysis Methods
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A functional analysis (FA) is the most commonly used assessment methodology for identifying maintaining variables influencing problem behavior. However, if an FA does not produce clear differentiation, researchers and practitioners often then modify procedures to include additional individualized variables. The interview-informed synthesized contingency analysis (IISCA) provides a marked departure from FA methodology and aims to include individualized factors at the initiation of the assessment in order to more rapidly produce differentiation and clear results. We sought to further evaluate and compare the outcomes of two different functional analysis methods: the single-contingency functional analysis (FA) and the interview-informed synthesized contingency analysis (IISCA) to determine the function of problem behavior and evaluate the subsequent function-based treatment determined from the functional analysis results with two children diagnosed with autism spectrum disorder (ASD). Both participants engaged in problem behavior maintained by single-contingencies of reinforcement identified within the single-contingency FA and emphasized by the effectiveness of each single-contingency function-based treatment.
Date:
May 2019
Creator:
Hendryx, Maggie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Praseodymium Oxide and Organic Modified Cerium Oxide Nanoparticles for Electrodeposition of Nickel-Ceramic Nanocomposites to Enhance Corrosion Protection and Mechanical Properties
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There is a consistent need in many industries, especially oil and gas, to develop coatings which have higher corrosion resistance and better hardness to extend the lifetime of equipment when it is exposed to hostile environments. Electrodeposition has been a favorable method in the synthesis of metal coatings because of its low cost, convenience, ability to work at low temperatures, and ability to control surface morphology and structure. The inclusion of ceramic nanoparticles in metal matrix composites has previously been investigated as a technique to not only increase the corrosion resistance of the native metal but also to improve the hardness and mechanical properties. Cerium oxide nanoparticles were modified through the grafting of organic groups with increasing hydrophobicity for use in nickel coatings on stainless steel to further improve the corrosion properties while maintaining the hardness of the nanocomposite coatings. The process of modifying the cerium oxide nanoparticles involved the use of aryl diazonium salts and resulted in multilayers forming on the surface of the nanoparticles. Praseodymium oxide nanoparticles were also investigated as additives to nickel coatings, since praseodymium oxide has not yet been studied as a possible corrosion protection enhancement in coatings. These coatings were evaluated for composition and …
Date:
May 2019
Creator:
Sanders, Stephen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Information Sharing and Storage Behavior via Cloud Computing: Security and Privacy in Research and Practice and Users' Trust
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This research contributes to the cloud computing (CC) literature and information science research by addressing the reality of information sharing and storage behavior (ISSB) of the users' personal information via CC. Gathering information about usage also allows this research to address the paradox between the research and practice. Additionally, this research explores the concept of trust and its role in the behavioral change relative to CC. The findings help reconcile the paradox between the two realms. Essay1 develops and tests cloud computing usage model (CCUM) that assesses ISSB. This model considers the main adoption determinants and the main drawbacks of CC. The study measures the main concerns of users found in the literature, perceived security and perceived privacy. The findings prove surprising on these concerns. Using multiple regression to analyze 129 valid survey responses, the results find that CC users are less concerned about the major issues of security and privacy and will use the technology based on peer usage. Essay 2 examines why users ignore the technology issues and elect to replace the traditional mechanisms for handling their personal information. The results of an interview-based study conducted on 11 normal users and 11 IT professionals clarify their perceptions about …
Date:
May 2019
Creator:
Al Smadi, Duha
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Modeling Marijuana Use Willingness and Problems as a Function of Social Rejection and Social Anxiety
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Marijuana is the second most commonly used substance in the US. A growing literature suggests that socially anxious individuals use marijuana to manage their symptoms in social situations, which may explain why they are also more likely to experience problems. Unfortunately, the majority of the literature is based on research conducted with adult samples or the co-occurrence of diagnoses in adolescent samples. The proposed study sought to test the link between social anxiety (SA) and proxies for ‘real-time' marijuana use behaviors (i.e., use willingness) as well as use-related problems among adolescents. Participants were 69 adolescents (15-17; 55% female) recruited from the community reporting any lifetime marijuana use. Participants were randomly assigned to a novel social rejection or neutral laboratory task and completed measures of SA, marijuana use frequency, and related problems. Consistent with adult findings, main effects of SA and experimental condition on marijuana use willingness were expected to be qualified by an interaction in which the greatest marijuana use willingness would occur among high SA youth post-rejection (H1), SA would be positively related to marijuana use problems (H2), and among adolescents in the rejection condition, marijuana use willingness would be positively correlated with use problems (H3). Only H2 was …
Date:
May 2019
Creator:
Cloutier, Renee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Substrate Nanotopography and Stiffness Modulation of Cell Behavior
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The physical characteristics (i.e., nanostructure and stiffness) of the extracellular matrix where cells reside have been shown to profoundly affect numerous cellular events in vivo and also been employed to modulate cell behavior in vitro, yet how these physical cues regulate cell behavior is still elusive. Therefore, we engineered a variety of nanotopographies with different shapes and dimensions, and investigated how the nanotopographical cue, through focal adhesions-cytoskeleton-nucleus pathway, affected cell phenotype and function. We further designed and fabricated well-defined substrates which had either identical biochemical cue (adhesive ligand presentation) but different nanotopographical cues or identical nanotopography but different biochemical cues, and dissected the roles of these cues in cell modulation. In addition, we revealed that the human mesenchymal stem cells (hMSCs) could obtain nanotopographical memory from the past culture environment, and the nanotopographical memory influenced the future fate decision of the hMSCs. Moreover, we evaluated the effects of substrate nanotopographical and stiffness cues on the fibrogenesis of human lung fibroblasts in response to carbon nanotubes and highlighted the significance of these physical cues in the development of physiologically relevant in vitro models for nanotoxicological study. The mechanistic understanding of the physical regulation of cell behaviors will provide important insight into …
Date:
May 2019
Creator:
Wang, Kai
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Bio-Inspired Material Surfaces with Self-cleaning, Micromanipulation and Water Collection
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Geckos are famous for the skill of switchable adhesion that they use to stick on various surface while keep their fingers super clean. In the dissertation, a unique mechanism was discovered to explain gecko self-cleaning phenomena. Using atomic force microscopy (AFM), we managed to compare the microparticle-substrate adhesion and the microparticle-seta adhesion with a single seta bonded to the AFM cantilever. A dynamic effect was approved that high pulling-off speed could increase the microparticle-substrate adhesion and thus the self-cleaning appears at high moving speed. Based on the self-cleaning theory, a gecko-inspired N-doped graphene surface with switchable adhesion was achieved, which was designed into a bio-inspired micromanipulator with a success rate over 90%. When electrical bias was applied on this biomimetic surface, the charge concentration induced an electrical double layer (ELD) on the convex surfaces, which attracts polar water molecules to form a water bridge on it, significantly enhancing the adhesion on the wrinkled graphene surface, mimicking the capillary force on beetle feet. Therefore, the bio-inspired adhesive surface can be controlled with speed, electrical bias, humidity and different material surfaces. The water attraction phenomenon on the polarized surface was further tested for the potential application of water collection and evaporation in …
Date:
May 2019
Creator:
Wan, Yiyang
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Distribution and Probable Sources of Nitrate in the Seymour Aquifer, North Central Texas, USA
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This study utilized GIS and statistical methods to map the spatial variability of nitrate and related groundwater constituents in 30 counties above the Seymour Aquifer, analyze temporal patterns of nitrate pollution, identify probable sources of pollution, and recommend water development strategies to minimize exposure to nitrate and reduce future aquifer contamination. Nitrate concentrations in excess of 44 mg/L (US EPA limit) were commonly observed in the Seymour Aquifer region, especially in the central agricultural belt. Data indicated that this is an ongoing problem in the Seymour Aquifer and that agricultural activity and rural septic systems are the likely sources of the nitrate. Inconclusive results emphasized the need for a more comprehensive spatial and temporal water quality monitoring.
Date:
May 2001
Creator:
Hillin, Clifford K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
How to Factor Loss
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How to Factor Loss is a collection of poems and translations prefaced by a critical paper over Robert Hass's “Meditation at Lagunitas.” The preface, “A Sensuous Theory, A Sensuous Poem,” explores how Hass merges the discourses of theory and poetry to create a poem that hangs suspended between a confidence and an anxiety about language. The poems in this thesis are primarily responses to finitude. The first section turns toward an “other” as a strategy of placating desire and of reaching both inward and outward. The second section explores the potential failures of art as a means of touching objects. The final section acknowledges that finitude is the condition of humankind, and it turns toward a more tender language, one that embraces limitations and is filled with something like faith. The collection is followed by an appendix which contains translations of several poems by René Guy Cadou and Georg Trakl.
Date:
May 2002
Creator:
Hall, Todd R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Attrition Rates of Teachers Trained in Alternative Teacher Certification Programs, Those Trained in the Centers for the Professional Development of Teachers, and Those Trained in Traditional University Programs.
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This study uses teacher employment data provided by the State Board for Educator Certification to examine the similarities and differences between initial employment and attrition rates of teachers trained in three prevalent types of Texas teacher preparation programs; alternative certification programs (ACP), the centers for professional development of teachers (CPDT), and traditional certification programs (TCP). The population for the study includes all Texas teachers who completed training in these programs in 1995, 1996, and 1997. The study found that ACP participants gain employment as Texas public school teachers at a significantly higher rate than their CPDT and TCP trained peers in year-one after completion of their training. However, ACP completers experience higher attrition rates in each of the subsequent years investigated. The study concludes that the overall cumulative attrition rate of new teachers trained in these programs is not as pronounced as originally presumed, but that low production levels cannot keep up with the growing demand for new teachers. Teacher preparation program leaders must seek ways to recruit and train more teachers.
Date:
May 2002
Creator:
Harris, Steven A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Approach to Quantum Information starting from Bell's Inequality (Part I) and Statistical Analysis of Time Series Corresponding to Complex Processes (Part II)
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I: Quantum information obeys laws that subtly extend those governing classical information, making possible novel effect such as cryptography and quantum computation. Quantum computations are extremely sensitive to disruption by interaction of the computer with its environment, but this problem can be overcome by recently developed quantum versions of classical error-correcting codes and fault-tolerant circuits. Based on these ideas, the purpose of this paper is to provide an approach to quantum information by analyzing and demonstrating Bell's inequality and by discussing the problems related to decoherence and error-correcting. II: The growing need for a better understanding of complex processes has stimulated the development of new and more advanced data analysis techniques. The purpose of this research was to investigate some of the already existing techniques (Hurst's rescaled range and relative dispersion analysis), to develop a software able to process time series with these techniques, and to get familiar with the theory of diffusion processes.
Date:
May 2002
Creator:
Failla, Roberto
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Teacher-directed student use of the Internet for curricular activities: Profiles of frequent and infrequent use.
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The purpose of this study was to develop profiles that described teachers with infrequent and frequent teacher-directed student use of the Internet for curricular purposes. Responses to the teachers' self-reported needs, beliefs, demographics, Internet skill levels, and other information were examined as the basis for the study. The study was descriptive in nature, utilized correlation and causal-comparative methods, and employed a convenience sample. The population consisted of 3,187 public school teachers from Nebraska and four service regions in upstate New York. Data related to the research questions were gathered using an online survey. After minimum access was determined, frequencies, percentages, t tests, and correlations were used to examine the data. Teachers with infrequent (<15 mins. /week) teacher-directed student use of the Internet comprised 63% of the sample. Teachers from elementary and high school levels were almost equally represented in the infrequent use group. The majority of the high school level teachers were assigned to language arts, mathematics or science courses. Teachers in the frequent (>. 90 mins. /week) use group were predominately (75%) high school level, with the majority teaching computer and business subjects. Significant differences were found between the use groups regarding beliefs about the Internet's effect on students …
Date:
May 2002
Creator:
Charles, Joan T.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Construct Validity of Self-Reported Historical Physical Activity
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The purpose of this study was to determine the construct validity of self-reported historical walking, running, and jogging (WRJ) activity. The criterion measure was concurrent performance on a maximal treadmill test. Subjects completed a medical exam and treadmill test between the years 1976 and 1985, and completed a follow-up questionnaire in 1986. Questionnaire included an item that assessed WRJ for each year from 1976 through 1985. Data analysis included Spearman correlations, partial correlations, ANOVA, and ANCOVA. Results indicated self-reported historical WRJ can be assessed with reasonable validity when compared with concurrently measured treadmill performance, and there is no decay in the accuracy of this reporting for up to ten years in the past.
Date:
May 2002
Creator:
Bowles, Heather R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Issues of Interpersonal Bonds
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In this work, sections of bodies are joined with sections of other people's bodies in order to form a new whole. Adding or subtracting relationships can many times be uncomfortable and strange, which I depict in my invented individuals based on the phases of family, such as birth, death, marriage, divorce, and the acquisition of new forms of family. This work questions issues of the family in terms of its definition, whether biologically or culturally constructed. I am creating hybrids by separating body parts from the whole and then recombining them to form a new individual. These images are a result of thinking about the possibilities and changes that people go through as a result of the new growth or loss of relationships. This work is intended to bring awareness to the way in which people relate and families become more blended.
Date:
May 2002
Creator:
Morin, Tesa B.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Eye of the beholder: Children respond to beauty in art.
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The purpose of this study was to determine if beauty was important to elementary age children when exploring and making aesthetic judgements about works of art and to determine the criteria elementary students used in judging beauty in works of art. This study also explored beauty as a concept that could be used as an organizing idea for designing a thematic unit with the purpose of introducing elementary students to postmodern art and issues. One hundred and sixty first grade and fourth grade students looked at 20 pairs of art reproductions and picked the artwork they considered the most beautiful. The criteria elementary students use for determining beauty in artworks was found to be color, realism, subject matter and physical appearance of the subject of the work of art.
Date:
May 2002
Creator:
Meli, Alisa A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
When shape becomes a sign: narrative design in creative nonfiction.
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This thesis consists of a preface and three original short stories. The preface explores the idea that narrative designthe shape or structureof a story may become a literary motif in its own right. The three stories included are creative nonfiction and each employs a distinct modular design. The themes of the stories revolve around personal identity and values; families and marriage; and creative empowerment.
Date:
May 2002
Creator:
Hale, Bonnie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Memories of Motherland: Gender, Diaspora and National Identity in 1990s Indian Popular Culture
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This thesis examines the role of globalization, an open economy and diasporic experiences on the 1990s popular Indian culture, focusing on discourses of gender, national identity and family. Recent Indian beauty queens and international beauty contests are discussed in the context of gendered nationhood in 1990s India. Several popular films of the 1990s are discussed as narratives expressing longing for an extended family and a homogeneous national identity under the leadership of a traditional father figure. In contrast, independent films interrogate the primacy of ethnic and national identity and raise interesting questions about exilic experience. All of these forms of national and popular culture reflect the conflicting and ever-changing anxieties surrounding national identity and the role of women in India.
Date:
May 2002
Creator:
Sapre, Manasi
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Crater of Diamonds: A History of the Pike County, Arkansas, Diamond Field, 1906-1972
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The first diamond mine in North America was discovered in 1906 when John W. Huddleston found two diamonds on his farm just south of Murfreesboro in Pike County, Arkansas. Experts soon confirmed that the diamond-bearing formation on which Huddleston made his discovery was the second largest of its kind and represented 25 percent of all known diamond-bearing areas in the world. Discovery of the field generated nearly a half century of speculative activity by men trying to demonstrate and exploit its commercial viability. The field, however, lacked the necessary richness for successful commercial ventures, and mining was eventually replaced in the early 1950s by tourist attractions that operated successfully until 1972. At that time the State of Arkansas purchased the field and converted it to a state park. Thus this work tell the rich and complicated story of America'a once and only diamond field, analyzes the reasons for the repeated failures of efforts to make it commercially viable, and explains how it eventually succeeded as a tourist venture.
Date:
May 2002
Creator:
Henderson, John C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library