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Faculty Attitudes Toward Residential and Distance Learning: A Case Study in Instructional Mode Preferences Among Theological Seminary Faculty

Description: Twenty-first century learners have bought into a cafeteria-style mentality for obtaining higher education that learning should be available at the student's convenience. Institutions that ignore this postmodern trend will likely find their applicant pools dwindling along with significant reductions in entering class sizes. Students will simply choose other schools able to provide respected, accredited, and useful learning which fits their busy lifestyles. Since 1987, Dallas Theological Seminary (Texas), a 76-year-old graduate school of theology in the conservative, evangelical, free-church movement, has offered distance learning classes in both extension and print-based delivery models. Because the faculty plays a pivotal role in the successful or unsuccessful implementation of online courses (McKenzie, Mims, Bennett, & Waugh, 2000), the present study uncovered the attitudes of full-time, graduate theological faculty at Dallas Theological Seminary (DTS) regarding distance learning and the likelihood of faculty to adopt this delivery innovation. Bruce Manning's (1976) Trouble-Shooting Checklist (TSC) for Higher Education Institutions was the instrument used in the study. The TSC is a nonparametric test designed to uncover differences between the observed and expected levels of acceptance that a department, program, or institution possesses regarding change toward distance learning in contrast to residential learning. The checklist's two major purposes are to provide an overall norm-referenced, predictive score estimating the organization's likelihood of adopting and implementing an innovation and to profile the strengths and weaknesses of an organization's environment (culture) relative to the adoption and implementation of innovations. Five scales provide a comprehensive understanding of the organizational climate, personality and leadership characteristics of participants, communication pathways within the organization, the degree of sophistication or expertise within the organization, and the receptivity of the students. An official administration of the instrument was conducted involving all full-time faculty at DTS. Frequency counts, percentage distributions, and the chi-square goodness-of-fit statistic were used to ...
Date: May 2003
Creator: Scott, Benjamin G.
Partner: UNT Libraries

Faculty Practice Among Commission of Collegiate Nursing Education Accredited Nursing Schools

Description: This descriptive survey study investigated the value of faculty practice among Commission of Collegiate Nurse Education (CCNE) Accredited Nursing Schools. The sample included all CCNE accredited schools that offered a Masters degree. Subjects from the 66 schools in the sample the dean and three Nurse Practitioner faculty who are teaching a clinical course. Response rate was 51% for the deans and 35% for the faculty. The opinions of deans were compared to the opinions of faculty on the views of faculty practice as research and the incorporation of faculty practice in the tenure and merit review system. The results showed faculty and deans differed on the value of faculty practice as research. However, only 6.5 % of statistically significance difference was contributable to whether the response was from a dean of a faculty. There was no significant difference to the inclusion of faculty practice in the tenure and merit review system. Boyer's expanded definition of research was used as a theoretical background. Deans viewed faculty practice more important as compared to the traditional faculty expectation of research than faculty did. The operational definition of faculty practice was that it required scholarly outcomes from the practice. Deans were more willing than faculty to acknowledge there were scholarly measurable outcomes to evaluate faculty practice than faculty were. The greatest difference in opinion of outcomes was the deans were more willing to accept clinically focused articles as an outcome than faculty were. Faculty were asked how the money from faculty practice was distributed. Faculty overwhelmingly reported that money generated from faculty practice most often goes to the individual faculty member. Suggested areas for future research involve investigation of the role of tenure committees in tenure decisions relating to research and faculty practice.
Date: December 2002
Creator: Roberts, Amy
Partner: UNT Libraries

Faculty Preparation in American Higher Education: Academic Lineage as a Predictor of Career Success

Description: The purposes of this research were to determine (1) the extent to which faculty are employed by the types of institutions from which they earned their doctorates in the United States, (2) the extent to which faculty have higher professional rank at employing institutions tat are the same type of institutions as those from which they earned their doctorates, (3) the extent to which female faculty are employed by the types of institutions from which they earned their doctorates, (4) the extent to which female faculty have higher professional rank at employing institutions that are the same type of institutions as those from which they received their doctorates, and (5) the extent of variability across academic disciplines in which faculty are employed by types of institutions from which they earned their doctorates. An exhaustive review of the literature on academic lineage was used to develop this research. All stratified random sample of 260 institutions from 2,873 colleges and universities was selected by Carnegie Foundation classification categories. Institutions were selected at random until the number of faculty members in each category corresponded to the estimated national distribution of faculty across Carnegie classification categories (n=3,940). The analyses revealed that the majority of faculty (74%) employed at all types of higher education institutions obtained their doctoral degrees fromresearch I institutions. Professional academic rank is an interaction between doctoral-granting institution and employing institution combined with gender. Male faculty are following the traditional "trickle down" theory of academic lineage while women faculty appear to be charting a different career path. Another unique finding was that there was not significant variability in the findings across academic disciplines. Academic success is a complex phenomenon that is not singularly explainable by academic lineage. As more women are entering into the academic ranks of higher education, changes in academic ...
Date: December 1996
Creator: Ellis, Martha M. (Martha McCracken)
Partner: UNT Libraries

Faculty Research Productivity at Addis Ababa University

Description: This study explores the research productivity of Addis Ababa University (AAU) faculty. AAU was established in 1950 and is the oldest modern higher educational institution in Ethiopia. Recently AAU took steps to transform itself to become a pre-eminent African research university. One of the characteristics of a research university is the focus on the amount of research conducted by the institution's faculty. Academic institutions measure research productivity primarily based on published work. The purpose of this study was to analyze the research productivity of AAU faculty, and to examine the differential predictive effects of individual and environmental variables on faculty research productivity. This quantitative study used a theoretical framework and instrument, Faculty at Work. Four hundred questionnaires were distributed to Addis AAU faculty in person and 298 questionnaires were returned resulting in a 74.5% response rate. After exclusion of 12 cases with missing information, 286 cases (71.5% response rate) were analyzed. Most of the respondents were men (M = 92.1%, F = 7.9%). The average age of AAU faculty was 44. A hierarchical multiple regression was used to examine the ability of six sets of independent variables (sociodemographic, career, self-knowledge, social knowledge, behavior, and environmental response) to predict research productivity (publication output). Results indicated that there are productive researchers at AAU, and the theoretical framework explained 67.6% of the variance in publication output.
Date: May 2011
Creator: Stafford, Mehary T.
Partner: UNT Libraries

Faculty Use of the World Wide Web: Modeling Information Seeking Behavior in a Digital Environment

Description: There has been a long history of studying library users and their information seeking behaviors and activities. Researchers developed models to better understand these information seeking behaviors and activities of users. Most of these models were developed before the onset of the Internet. This research project studied faculty members' use of and their information seeking behaviors and activities on the Internet at Angelo State University, a Master's I institution. Using both a quantitative and qualitative methodology, differences were found between tenured and tenure-track faculty members on the perceived value of the Internet to meet their research and classroom information needs. Similar differences were also found among faculty members in the broad discipline areas of the humanities, social sciences, and sciences. Tenure-track faculty members reported a higher average Internet use per week than tenured faculty members. Based on in-depth, semi-structured interviews with seven tenured and seven tenure-track faculty members, an Internet Information Seeking Activities Model was developed to describe the information seeking activities on the Internet by faculty members at Angelo State University. The model consisted of four basic stages of activities: "Gathering," "Validating," "Linking" with a sub-stage of "Re-validating," and "Monitoring." There were two parallel stages included in the model. These parallel stages were "Communicating" and "Mentoring." The Internet Information Seeking Activities Model was compared to the behavioral model of information seeking by faculty members developed by Ellis. The Internet Model placed a greater emphasis on validating information retrieved from the Internet. Otherwise there were no other substantive changes to Ellis' model.
Date: December 2000
Creator: Fortin, Maurice G.
Partner: UNT Libraries

The Feasibility of Using an Adaptation of the Montessori Method to Teach Basic Nursing Skills to Beginning Generic Baccalaureate Nursing Students

Description: The purposes of this study are to determine the extent to which nursing education administrators accept the use of an adapted Montessori method in teaching basic nursing skills and to determine the feasibility of implementing such a method.
Date: August 1992
Creator: Paterniti, Anthony Peter
Partner: UNT Libraries

First-generation College Students: Their Use of Academic Support Programs and the Perceived Benefit

Description: The purpose of this study was to determine the extent to which academically successful first-generation college students, compared to academically successful non-first-generation college students, used academic support programs provided by UNT and to measure their perception of the benefits of these programs. Differences were examined using information gathered from a Graduate Student Survey administered to students graduating in fall 2006 from the University of North Texas. Analysis of the data from the survey indicated that there was no statistical significance between the use and perception of benefit of academic support programs between the two groups. Overall, students that used academic support programs provided by the university believed they benefited from the programs they utilized. Both groups indicated that they believed the Math Lab provided the most benefit. The Graduating Student Survey also examined input, environment and output factors of academically successful first-generation and academically successful non-first-generation students. Again, both groups indicated similar responses to the questions asked. First-generation college students in this study were successful in graduating from the University of North Texas and utilized some of the resources provided by the university to do so.
Date: December 2007
Creator: Thompson, Jessica Loren
Partner: UNT Libraries

For-profit higher education programs in the United States.

Description: This study examined the extent of research and teaching on higher education programs in the United States that focuses on for-profit higher education. This descriptive study used a 30-item questionnaire to gather the information reported here. This survey instrument was sent to the entire population of interest. This population was made up of all of the programs in higher education that are listed in the ASHE Higher Education Program Directory, which is produced by the Association for the Study of Higher Education. The results of this research show that little research and teaching is being done that has a primary focus on for-profit higher education. Recommendations on how to address this are provided.
Date: May 2007
Creator: Chipps, Kenneth M.
Partner: UNT Libraries

Forecasting Future Events Affecting One Institution of Higher Education in the State of Texas: A Delphi Application

Description: The purpose of this study was to investigate the possible events in the external environment between 1987 and 1997 that may affect the future of North Texas State University. Two groups of experts participated in the study, a group of individuals from outside North Texas State University and a group of experts from the university.
Date: December 1987
Creator: Bollinger, Julie R., 1952-
Partner: UNT Libraries

The Four Major Education GI Bills: A Historical Study of the Shifting National Purposes and Accompanying Changes in Economic Value to Veterans

Description: Benefits for soldiers follow the formation of ancient and present day armies raised for the purpose of extending the national or state will. Veterans' benefits for defenders of the U.S. emerged during the American colonial period. College benefits began after WWII with the GI Bill of Rights. This study examines the variations in purpose for nationally established educational benefits for veterans and the singular value to the veterans of these 5educational benefits. The study begins with an overview of the history of veterans' benefits. Primary emphasis is then placed on the educational portion of the World War II Servicemen's Readjustment Act and the current educational benefit, the Montgomery GI Bill. As the purpose of awarding educational benefits changed from World War II to the latest U.S. war, the Gulf War of 1990-1991, the economic value to the individual veteran also changed. The WWII GI Bill featured an educational provision intended to keep returning veterans out of the changing economy whereas current GI Bills is intended as a recruiting incentive for an all-volunteer force. Correspondingly, the economic value to the individual veteran has changed. Data supporting this study were extracted from historical documents in primary and secondary scholarly studies and writings, government documents, national newspapers and periodicals, Veterans Administration publications, service newspapers, and anecdotal writings. The study offers conclusions regarding the shifting purposes and economic value and recommends changes to current and future GI Bills. The conclusions of this study are: (a) the purpose of the Montgomery GI Bill is to serve as a recruitment tool for the armed force, whereas the WWII GI Bill emphasized concern over the return of millions of veterans to a changing wartime economy unable to offer full employment and, (b) the present GI Bill funds less than 50% of the costs for a 4-year degree ...
Date: December 2000
Creator: Spaulding, Donald James
Partner: UNT Libraries

From Aspiration to Attainment: African American Community College Transfer Student Experiences Through Baccalaureate Degree Attainment

Description: The purpose of this dissertation was to explore African American community college transfer student experiences through baccalaureate degree completion. The current study used qualitative methods to examine the experiences and perceptions of eighteen African American community college transfer students who recently graduated or were within 30 credit hours of graduating from a four-year university in Texas. Ten female and eight male students, ranging in age from 21 to 56 years old, with an average age of 28, composed the sample. Data were collected through semi-structured interviews which were transcribed and analyzed based on an integrated conceptual model of Padilla’s (1999) Model of Minority Student Success and Yosso’s (2005) Community Cultural Wealth Model. Findings suggest that African American community college transfer student experiences are very similar to transfer student experiences revealed in current literature. However, findings indicate students perceive their experiences differ from student of other races/ethnicities when dealing with negative stereotypes, lack of role models, and racial bias. Findings also suggest African American community college transfer student persist by employing transfer student capital, familial, aspirational, and resistant capital to learn how the traverse transfer, transition, and persistence through baccalaureate degree attainment.
Date: December 2013
Creator: Wilson, Dawna
Partner: UNT Libraries

From reactionary to responsive: Applying the internal environmental scan protocol to lifelong learning strategic planning and operational model selection.

Description: This study describes and implements a necessary preliminary strategic planning procedure, the Internal Environmental Scanning (IES), and discusses its relevance to strategic planning and university-sponsored lifelong learning program model selection. Employing a qualitative research methodology, a proposed lifelong learning-centric IES process based on Bryson's (2004) strategic planning model was tested at a large public university in the American Southwest with the intention of both refining the IES process for general use in the field as well as providing a set of useable reference documents for strategic planners at that university. The prototype lifelong learning IES process as tested proved to be highly effective in identifying and categorizing previously unrecognized lifelong learning programming and organizational structures and, was reasonably efficient in process execution. Lessons learned from the application of the prototype lifelong learning IES procedure led to the development of a revised scanning procedure. This revised procedure is considered more reliable and can be accomplished by a single investigator in as little as 35 production hours, providing a detailed snapshot of the total university lifelong learning system and a point of departure for the larger strategic planning effort.
Date: May 2009
Creator: Downing, David, L.
Partner: UNT Libraries

The Full Range Advising Experience: an Assessment of College Academic Advisors’ Self-perceived Leadership Styles

Description: The purpose of this quantitative, descriptive study was to identify the self-perceived leadership styles of college academic advisors and to explore the variance in the perceived leadership styles based on demographic information such as academic advising approaches, institutional type, age, years of experience, and gender. Participants were 225 college advisors from among 5,066 members of the National Academic Advising Association (NACADA) during the 2013-2014 academic year who met study criteria and whose email invitation to complete an online survey was presumably delivered, rendering a 4.44% response rate. The Multifactor Leadership Questionnaire Version 5X (MLQ 5X) with five supplemental questions was used for data collection The composite score for leadership style served as the dependent variable, and advising approach, institutional type, age, years of experience, and gender served as the independent variables for the study. Descriptive statistics, frequency distribution, and a factorial analysis of variance (ANOVA) were used for data analysis. The descriptive statistics for this study revealed that college academic advisors represent all points along the entire spectrum of the Full Range Model of Leadership continuum employing different leadership behaviors based on the situation. The descriptive data were supported by the frequency distributions per case which identified transformational leadership as the perceived dominant leadership style for the college academic advisors in this study. A priori to conducting the factorial ANOVA, Leneve’s test for homogeneity of variance indicated a statistically significant coefficient, thus violating the assumption of data normality and rendering the ANOVA findings uninterpretable. An implication of this study is that transformational leadership is the most desired leadership style of the Full Range Model of Leadership for college academic advisors. If this is true, professional development activities for college academic advisors should focus on strengthening transformational leadership behaviors/techniques including with whom and when this leadership style should be employed compared ...
Date: August 2015
Creator: Davis Jones, Chrissy L.
Partner: UNT Libraries

Gender Differences Associated with Enrollment in the Texas Academy of Mathematics and Science

Description: This study sought to determine if different factors had influenced females and males to select engineering/science-related studies at the Texas Academy of Mathematics and Science (TAMS). The data were collected in the fall semester in 1997 at TAMS located on the University of North Texas campus from a survey of factors reported in the literature that had influenced students to enroll in engineering/science-related curriculum.
Date: May 1998
Creator: Burns, Robert T. (Robert Thomas), 1942-
Partner: UNT Libraries

Gender differences in college choice, aspirations, and self-concept among community college students in science, mathematics, and engineering.

Description: Educational researchers, practitioners, and policy makers have long expressed their concern that gender disparity of academic performance and participation in science and mathematics education continues to increase with educational progress of students through the pipeline. Educational and occupational aspirations, high school experience, external support from family members and significant others appear to be influential factors that develop strong self-concept among female students who aspire to study science and mathematics. Using a national sample of aspirants in science, mathematics, and engineering majors in public community colleges, that participated in the 1996 Cooperative Institutional Research Program American Freshman Survey, this study investigated the influences of students' pre-college experiences on their college choice, aspirations, and self-concept by examining three theoretical structural models. In addition, gender differences were tested by using multiple group analysis. The findings from the multiple group analysis revealed that there was no statistically significant gender difference in predicting college choice, aspirations, and self-concept. The results from the descriptive analysis indicated that the female students were already underrepresented in science, mathematics, and engineering majors. Taken together, the findings challenge researchers, practitioners, and policy makers to examine why the persistent fall off, and how can community colleges support and retain these students who already enrolled. The results from the model fit analysis revealed that the encouragement from family and others played as a contributing factor in predicting students' college choice, aspirations, and self-concept. This study confirmed that the development of self-concept among community college students in science, mathematics, and engineering is complex and unique. Several recommendations that are pertaining to policy implications, improvement of practice, and future research to increase the representations of female students in science, mathematics, and engineering in the post-secondary education were developed from the findings of this study. The results of this study contribute to the research literature ...
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Date: August 2004
Creator: Starobin, Soko Suzuki
Partner: UNT Libraries

The Generational Shift: an Exploration of Leadership Behaviors of Senior Student Affairs Officers Through a Generational Lens

Description: The purpose of this quantitative study was to identify and compare differences in leadership behaviors of senior student affairs officers (SSAOs) based on their generational cohort (Baby Boomer, Generation X, Millennial). The Multifactor Leadership Questionnaire (MLQ) was used to measure nine leadership behaviors and three leadership outcomes. Surveys were administered electronically to 3,361 individuals identified as a chief student affairs officer or director of student affairs in the Higher Education Online Directory (2014). The 449 respondents included 246 Baby Boomers, 192 Generation Xers, and 11 Millennials. Due to an uneven sample size, the Millennial group was removed from the data analysis. The total respondents consisted of 215 male and 219 female SSAOs with 260 employed at four-year private institutions and 170 employed at four-year public institutions. A MANOVA was utilized to determine whether or not statistical differences existed between the nine dependent variables (leadership behaviors) and independent group variables (generational group). The findings showed that whereas Generation X SSAOs exhibited more transactional leadership behaviors, Baby Boomer SSAOs were more transformational. The results of this study have implications for the field of student affairs in that research and practice support the need for more transformational leaders in senior administrative positions in higher education. If Generation X SSAOs who represent the next generation of administrators are more transactional in their leadership, college presidents and professional associations may need to develop a new, more transformational generation of SSAOs to replace Baby Boomers as they retire.
Date: August 2015
Creator: Robinson, Johnny A.
Partner: UNT Libraries

Graduate Professional Training in Christian Education at Dallas Theological Seminary and Alumni Perceptions of Program Quality

Description: This study assessed the quality of graduate professional training in Christian education at Dallas Theological Seminary (DTS) in terms of the perceptions of program alumni. The subjects of the investigation were 780 alumni who graduated from DTS between 1984 and 2000. The Christian Education program was assessed utilizing Daniel Stufflebeam's CIPP model and alumni data collected from a survey instrument. A response rate of 65% (N=504) was achieved. The research procedure employed a non-experimental design methodology for the quantitative component and open-ended questions for the qualitative component. Most results were statistically significant at the .05 alpha level utilizing chi-square goodness-of-fit tests.
Date: May 2002
Creator: McLaughlin, Linden D.
Partner: UNT Libraries

Graduate Student Opinion of Most Important Attributes in Effective Teaching

Description: Graduate students in the College of Education at the University of North Texas, Denton rated 57 teacher attributes on their relative importance in effective teaching. The data was analyzed across six demographic variables of department, sex, degree, nationality, teaching experience, and previous graduate school, using mean scores, one-way ANOVA, and t-tests for two independent samples.
Date: May 1994
Creator: Onyegam, Emmanuel I. (Emmanuel Ikechi)
Partner: UNT Libraries

Hardiness and public speaking anxiety: Problems and practices.

Description: This study explored the relationship between the personality construct of hardiness and public speaking anxiety. Although hardiness has been widely explored in a variety of anxiety-arousing life events, its relationship with communication anxiety had not been previously studied. Therefore, hardiness, public speaking trait anxiety, and public speaking state anxiety were measured in a course requiring an oral presentation assignment. One hundred fifty students enrolled in a basic speech communication course participated in the study. A statistically significant correlation was revealed between hardiness and trait communication anxiety. Students higher in hardiness reported lower trait communication apprehension in three contexts: 1) meeting, 2) interpersonal, and 3) group. Overall, students did not differ on measures of hardiness and a fourth communication context: public speaking anxiety. Likewise, on measures of hardiness and state public speaking anxiety, students did not differ.
Date: August 2007
Creator: Iba, Debra, L.
Partner: UNT Libraries

Hardiness, stress, and coping strategies among mid-level nurse managers: Implications for continuing higher education.

Description: This study investigated relationships among hardiness, stress, and coping strategies among mid-level nurse managers in hospitals. Coping strategies were hypothesized to be positively related to stress. In addition, hardiness and its components were hypothesized to be positively related to stress and coping strategies. Demographics were hypothesized to be unrelated to stress, hardiness, and coping strategies. Both hardiness and coping strategies were hypothesized to be predictors of stress. Pearson correlation coefficients, multiple regression, and linear regression were used in data analysis. Stress was associated with specific coping strategies viz., confrontation, selfcontrolling, accepting responsibility, and escape-avoidance. High hardiness, particularly commitment and challenge, was associated with low levels of stress and with problemfocused coping strategies. By contrast, low hardiness was associated with high stress and use of emotion-focused strategies. Significant demographics, when compared to study variables, included age, experience, time with supervisors, number of direct reports, highest degrees obtained, and formal or informal higher education in management. Young nurse managers who were less experienced in nursing and management, and who had fewer direct reports, reported the highest stress levels among nurse managers. High hardiness, particularly commitment, was a strong predictor of low levels of stress; use of escape-avoidance was a significant predictor of occupational stress. This study supported the theoretical suppositions of lower stress if hardiness and specific coping strategies are high among mid-level nurse managers. Potential exists for work-related stress to be reduced by increasing hardiness and adaptive coping strategies. Implications for higher education research and practice are discussed.
Date: May 2001
Creator: Judkins, Sharon Kay
Partner: UNT Libraries

Hazard mitigation and disaster preparedness planning at American Coastal University: Seeking the disaster-resistant university.

Description: This study employed a qualitative case study method to evaluate the efforts of one university to conduct hazard mitigation and disaster preparedness planning activities and used the Federal Emergency Management Agency framework and selected writings of sociologist and disaster researcher E.L. Quarantelli as models for evaluating the institution's approach. The institution studied was assigned a fictitious name and the identities of the study participants withheld in order to protect the integrity of the institution's planning efforts and its personnel. The study utilized a 92-item questionnaire, field interviews, and review and analysis of documentary materials provided by the institution for data collection purposes. Pattern-matching techniques were applied to identify themes and trends that emerged through the course of data collection. The results indicate the institution has developed an organizational culture that is broadly responsive to and engaged in disaster preparedness planning at multiple levels in a manner generally consistent with principles identified in select writings of Quarantelli. Results further indicate the institution has engaged in identifying hazard mitigation priorities but not in a manner consistent with that advocated by the Federal Emergency Management Agency in its publication entitled Building a Disaster-Resistant University.
Date: December 2008
Creator: Osburn, Toby W.
Partner: UNT Libraries

Hebrew Wisdom as the Sitz im Leben for Higher Education in Ancient Israel

Description: This research grows out of an interest in what scholars commonly call the wisdom tradition of the ancient near east. This tradition or movement involved groups of thinkers and writers, known collectively as scribes, who were concerned in a philosophical way with the problems of living, and with principles of living well. Such communities are known to have flourished in Egypt, the various kingdoms of Mesopotamia, and western Asia, from at least the middle of the third millennium B.C. These scribal communities are also known to have sponsored schools, intended primarily for training in statecraft and the professions, but also for training in the scribal profession per se. The documentary and historical record indicates that such schools provided education from the most rudimentary level of literacy and writing to the most advanced levels of scribal scholarship. These advanced levels of training were functionally equivalent to what is nowadays known as higher education; and the ideals, the philosophy, which guided this enterprise found expression in a corpus of literature bearing the name "wisdom." The problem for this dissertation is whether or not there was in ancient Israel, specifically in the Solomonic era (10th century, B.C.), such an advanced scribal school associated with a Hebrew wisdom tradition. This is a research problem precisely because the evidence for such a school in Israel is both less abundant and less accessible than for the rest of the ancient near east.
Date: May 1997
Creator: Wells, C. Richard (Calvin Richard), 1949-
Partner: UNT Libraries

High-Temperature Corrosion of Aluminum Alloys: Oxide-Alloy Interactions and Sulfur Interface Chemistry

Description: The spallation of aluminum, chromium, and iron oxide scales is a chronic problem that critically impacts technological applications like aerospace, power plant operation, catalysis, petrochemical industry, and the fabrication of composite materials. The presence of interfacial impurities, mainly sulfur, has been reported to accelerate spallation, thereby promoting the high-temperature corrosion of metals and alloys. The precise mechanism for sulfur-induced destruction of oxides, however, is ambiguous. The objective of the present research is to elucidate the microscopic mechanism for the high-temperature corrosion of aluminum alloys in the presence of sulfur. Auger electron spectroscopy (AES), low energy electron diffraction (LEED), and scanning tunneling microscopy (STM) studies were conducted under ultrahigh vacuum (UHV) conditions on oxidized sulfur-free and sulfur-modified Al/Fe and Ni3Al(111). Evaporative deposition of aluminum onto a sulfur-covered iron surface results in the insertion of aluminum between the sulfur adlayer and the substrate, producing an Fe-Al-S interface. Aluminum oxidation at 300 K is retarded in the presence of sulfur. Oxide destabilization, and the formation of metallic aluminum are observed at temperatures > 600 K when sulfur is located at the Al2O3-Fe interface, while the sulfur-free interface is stable up to 900 K. In contrast, the thermal stability (up to at least 1100 K) of the Al2O3 formed on an Ni3Al(111) surface is unaffected by sulfur. Sulfur remains at the oxide-Ni3Al(111) interface after oxidation at 300 K. During annealing, aluminum segregation to the g ¢ -Al2O3-Ni3Al(111) interface occurs, coincident with the removal of sulfur from the interfacial region. A comparison of the results observed for the Al2O3/Fe and Al2O3/Ni3Al systems indicates that the high-temperature stability of Al2O3 films on aluminum alloys is connected with the concentration of aluminum in the alloy.
Date: December 2000
Creator: Addepalli, Swarnagowri
Partner: UNT Libraries

Higher Education and Entrepreneurship: The Relation between College Educational Background and Small Business Success in Texas

Description: This study examined the relationship between success of small businesses and the educational backgrounds of their owners. A survey composed of questions concerning demographics, educational backgrounds, and business success was mailed to 1100 businesses in Dallas, Denton, and Tarrant counties in Texas. There were 228 usable responses which were analyzed by using the Statistical Package of Social Sciences (SPSS12). Data were sorted so that educational level, sales volume, number of employees, and longevity, were identified on a 5-point ordinal scale. Educational major was identified on a 5-point nominal scale. Pearson's correlation was used to determine whether relationships existed between founders' educational background and small business success. Spearman's correlation was used to determine the direction and strength of the relationships. Then educational level and major were combined with age, gender, ethnicity, and industry, to determine the relationships between founders' educational background, and business success. For this purpose a canonical correlation was used. Five opinion questions concerned influence of college education on business success among college graduates and non-college graduates were identified on a 5-point Likert scale and tested using one-way ANOVA, and independent sample t-test. When educational level and major were the only predictors of business success, a statistically significant relationship was found between years of formal education, and sales volume. When educational level and major were combined with age, gender, ethnicity, and industry, a statistically significant relationship was found between founders' educational level and age, and business success. A statistically significant and negative relationship was found between founders' educational major and industry, and business success. All opinion questions revealed statistically significant relationships between owner's college education and business success. These relationships indicate the ability for the owner to learn, adapt and maintain a successful business. The influence of a college education on small business success was noticeable and reflects the ...
Date: May 2005
Creator: Al-Zubeidi, Mohammad
Partner: UNT Libraries