Middle school student's interaction within a digital library is explored. Issues of interface features used, obstacles encountered, search strategies and search techniques used, and representation obstacles are examined. A mechanism for evaluating user's descriptors is tested and effects of augmenting the system's resource descriptions with these descriptors on retrieval is explored. Transaction log data analysis (TLA) was used, with external corroborating achievement data provided by teachers. Analysis was conducted using quantitative and qualitative methods. Coding schemes for the failure analysis, search strategies and techniques analysis, as well as extent of match analysis between terms in student's questions and their search terms, and extent of match analysis between search terms and controlled vocabulary were developed. There are five chapters with twelve supporting appendixes. Chapter One presents an introduction to the problem and reviews the pilot study. Chapter Two presents the literature review and theoretical basis for the study. Chapter Three describes the research questions, hypotheses and methods. Chapter Four presents findings. Chapter Five presents a summary of the findings and their support of the hypotheses. Unanticipated findings, limitations, speculations, and areas of further research are indicated. Findings indicate that middle school users interact with the system in various sequences of patterns. …

The problem of the present study was to describe and analyze marketing in Saudi Arabia and American marketing executives' knowledge about the Saudi market. The purposes of the study were twofold: (1) to describe and analyze marketing in Saudi Arabia and (2) to determine what American marketing executives know about the Saudi Arabian market. This study employed both primary and secondary data. For the analysis of marketing in Saudi arabia, primarily secondary sources were used from the available literature. For the analysis of American marketing executives' knowledge about the Saudi Arabian market, primary sources were used in the form of American marketers' responses to a mailed questionnaire.

Outer membrane proteins (OMPs) were recovered from eleven strains (eight serogroups) of Legionella pneumophila by sequential treatment with Tris buffer (pH 8), citrate buffer(pH 2.75) and Tris buffer (pH 8). Transmission electron microscopy revealed clearly the separation of the outer membrane from the bacteria. The development of delayed hypersensitivity was also noted by measuring the area of arythema and induration produced by intradermal injections of the MPSs from Chicago 8 strain. The adjuvants enhanced greatly both active and cell-meditated immunity (CMI). Transient lymphocytopenia with a slight rise in neutrophils was noted in each of the immunized groups. Intraperitoneal challenge, seven days after the OMP booster, of one LD (1.5 x10^6) of legionellae resulted in lymphocytopenia with elevated neutrophils. All immunized rats survived the challenge, although those in the saline-OMP group were clearly the sickest. Post-challenge, legionella antibody titers rose greatly and CMI was heightened. Passive immunization (homologous and heterologous) was found to protect the rats from a challenge of on LD. Actively-immunized rats retained their immunity for at least six months as determined by their resistance to a second challenge.

This dissertation aims to explain the conditions under which expertise can undermine democratic decision making. I argue that the root of the conflict between expertise and democracy lies in what I call insufficiently “representative” expertise – that is forms of scientific research that are not relevant to the policy questions at hand and that fail to make visible their hidden values dimensions. I claim that the scholarly literature on the problem of expertise fails to recognize and address the issue correctly, because it does not open the black box of scientific methodologies. I maintain that only by making sense of the methodological choices of experts in the context of policy making can we determine the relevance of research and reveal the hidden socio-political values and consequences. Using the case of natural gas fracking, I demonstrate how expert contributions – even though epistemically sound – can muddle democratic policy processes. I present four case studies from controversies about fracking to show how to contextualize scientific methodologies in the pertinent political process. I argue that the common problem across all case studies is the failure of expertise to sufficiently represent stakeholders’ problems and concerns. In this context, “representation” has three criteria: (1) …

There is great expectation that oil development in Ghana will catapult the nation towards prosperity and lead to drastic improvement in the wellbeing of Ghanaians. However, there is also concern that Ghana could fail to achieve these due to the resource curse notwithstanding the fact that scholars of the curse have yet to agree on the inevitability of the curse. Resource curse scholars adduce different reasons for its occurrence or absence. One thing common among the scholars, however, is that none discusses environmental justice in the context of the curse. In this dissertation, I examine Ghana's attempts at avoiding the resource curse through policymaking and implementation using the Guidelines on Environmental Assessment and Management of Ghana's offshore oil sector as a case study. I argue that a strong environmental justice frame is required to avert the curse in Ghana. Specifically, I assess the policy process in Ghana's oil sector, the institutional framework for managing the sector, and analyze the perception of environmental justice for policymaking. The outcome of these assessments show that although the policy process requires broadening for full and effective participation, Ghana has checks and balances policies to avert the resource curse and to deliver environmental justice in …

The purpose of this study was to investigate the evolution and development of the field of public administration in the Kingdom of Saudi Arabia. Factors which brought about programs of public administration and which have been influential in the development of these programs were analyzed. Although the historical roots of Saudi public administration are traced to the recapture of Riyadh by the late King Abdulaziz Al-Saud in 1902, modern public administration in the Kingdom actually began in 1953 with a royal decree which established the Council of Ministers. Factors that led to the establishment of the Institute of Public Administration and the birth of public administration programs at major Saudi universities include the country's rapid socioeconomic growth, rapid administrative expansion, and policies of administrative reform, higher education development, and the ambitious Five-Year Plans. Despite the fact that attention to the field of public administration in the Kingdom of Saudi Arabia dates back to the establishment of the College of Commerce at King Saud University in 1959, the real start of teaching public administration in Saudi universities is considered recent. The field of public administration is paralleled with the establishment of the Departments of Public Administration in King Abdulaziz University in …

This study examines the political and administrative role of planning and budgeting in Saudi Arabia. It demonstrates how they have contributed to lessening the political crises of distribution, participation, and penetration that confront developing countries. The study also investigates how these two bureaucratic processes have helped adapt rapid changes in a manner acceptable to the cultural milieu. In addition, the study explores the politics of planning and budgeting and identifies the roles various actors play. The evolution and institutionalization of planning and budgeting are examined through printed materials and interviews with planners and budgeters in the Ministries of Planning and Finance. In addition, a number of the Ulama, businessmen, former government bureaucrats, officials of key ministries and agencies, and media were interviewed in an attempt to understand how they interact in the politics of planning and budgeting.

The purpose of this dissertation is to study the planning and budgeting processes in Jordan to determine whether the findings of Caiden and Wildavsky about those processes in other poor countries generally are applicable to Jordan. An attempt is made to answer the research questions by comparing data from national plans, budgets, and expenditures during a fifteen-year period (1970-1984). In Jordan, as in other developing nations, the role of planning and budgeting is highly significant to the success of the country's hopes for development. This research tries to evaluate the role of planning and budgeting as policy instruments in the process of development in Jordan. The second focus of the dissertation concerns the possibilities and problems of assessing the impact of governmental policies on development. Specifically, an assessment is made to determine the impact of governmental expenditures on development as evidenced in Jordan s gross national product during the last fifteen years. The following questions are addressed in order to examine the impact of government action on economic development. First, what are the impact and significance of government expenditures, as a combined measure, on the gross national product in Jordan? Second, which governmental expenditure areas provide the greatest contribution to …

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This study contributes a procedure, based on data analysis and geostatistical methods, to evaluate the distribution of chemical ratios and differentiate natural and anthropogenic contaminant sources of groundwater quality in the East Texas Basin. Four aquifers were studied, Sparta, Queen City, Carrizo and Wilcox. In this study, Carrizo- Wilcox is considered as one aquifer, and Sparta-Queen City as another. These aquifers were divided into depth categories, 0-150 feet for Sparta-Queen City and 300-600 feet and 600-900 feet for Carrizo-Wilcox in order to identify individual sources of contamination. Natural sources include aquifer mineral make up, salt domes and lignite beds. Major anthropogenic sources include lignite and salt dome mining and oil-gas production. Chemical ratios selected were Na/Cl, Ca/Cl, Mg/Cl, SO4/Cl, (Na+Cl)/TDS, SO4/Ca and (Ca+Mg)/(Na+K). Ratio distributions and their relationships were examined to evaluate physical-chemical processes occurring in the study area. Potential contaminant sources were used to divide the Basin into three areas: Area 1 to the east, Area 2 in the west and Area 3 in the center. Bivariate analysis was used to uncover differences between the areas. The waters in Area 1 are potentially impacted primarily from oil field waters. Sources present in Area 2 include lignite beds and oil …

This dissertation aims to examine the relationship between interorganizational collaboration and the implementation of urban greening policy. Specifically, it discusses bonding and bridging relationships that explain a successful interorganizational collaboration, and to what extent these factors explain the perception of success in the implementation of public programs. The effects of risks of collaboration on the implementation of urban greening policy are also studied. To frame the analysis, this dissertation uses Feiock's institutional collective action (ICA) framework, which aims to understand successful interorganizational collaboration and policy implementation across sectors. The collection of data was carried out in Riyadh City in Saudi Arabia, which is located in the center of Saudi Arabia. In this study, the unit of analysis is the networks of relationships among organizations that work with the Royal Commission for Riyadh City (RCRC). The data were obtained from 44 organizations collaborating to implement urban greening projects in Riyadh City and were collected over 17 days from June 15, 2019 to July 2, 2019. The sampling technique used in this study was snowball sampling. The main statistical methods employed for hypothesis examination were social network analysis (SNA) and ordinary least squares (OLS). The key empirical results indicated that there were …

We address the problem of the DNA sequences developing a "dynamical" method based on the assumption that the statistical properties of DNA paths are determined by the joint action of two processes, one deterministic, with long-range correlations, and the other random and delta correlated. The generator of the deterministic evolution is a nonlinear map, belonging to a class of maps recently tailored to mimic the processes of weak chaos responsible for the birth of anomalous diffusion. It is assumed that the deterministic process corresponds to unknown biological rules which determine the DNA path, whereas the noise mimics the influence of an infinite-dimensional environment on the biological process under study. We prove that the resulting diffusion process, if the effect of the random process is neglected, is an a-stable Levy process with 1 < a < 2. We also show that, if the diffusion process is determined by the joint action of the deterministic and the random process, the correlation effects of the "deterministic dynamics" are cancelled on the short-range scale, but show up in the long-range one. We denote our prescription to generate statistical sequences as the Copying Mistake Map (CMM). We carry out our analysis of several DNA sequences, …

The purposes of this study were to identify public school districts that currently offer, or are planning to offer, transitional first-grade programs, to describe existing transitional programs, to describe the genesis of transitional first-grade classes in the North Texas area, and to assist in the establishment of a networking system for schools in the North Central Texas area that currently have, or are planning to have, transitional first-grade classes. The 158 school districts in Regions 10 and 11 were surveyed. The findings of the study indicate that about one-third of the districts offered transitional first-grade programs during the 1988-89 school year, and two-thirds of the districts saw a need for transitional first-grade classes. These transitional programs were implemented to meet the needs of children who had completed kindergarten but were not ready for regular first grade. Transitional first-grade programs focus primarily on language arts and math skills for kindergarten and early first grade. While curriculum materials vary from district to district, language arts is likely to be based on a whole-language approach, and math is likely to focus on manipulatives.. Kindergarten teacher observation is used in the screening procedures in the majority of the districts. A number of instruments are …

This dissertation is a study of the political transformation of Texas during the twentieth century from a predominantly Democratic to a two-party state. It is commonly asserted that the fundamental conservatism of Texas voters led them to abandon the national Democratic Party as it embraced more liberal reforms. This shift led to a rise in support in Texas for the Republican Party, which continued to advocate a more conservative agenda. But this change demands a more thorough explanation at the local level, in part because such a study can also reveal other factors at work. This dissertation first examines how prohibition impacted the state's political status quo and provided an opportunity for the Republican Party to increase its numbers. It then discusses the New Deal and the growth of Texas's oil industry, and how government regulation shaped political developments. The impact of urbanization and suburbanization on Republican growth are also addressed, along with numerous campaigns that reflected the changes occurring in Texas's electorate during this time. Although Dwight D. Eisenhower's 1952 and 1956 wins in Texas were a strong indication of the realignment among Texas voters, it was John G. Tower's election to the United States Senate that served as …

The purpose of this qualitative multi-case study was to explore the nature of the impact that a tutoring program, which featured preservice teachers as tutors, had on participating fifth grade at-risk students’ literacy behaviors in the classroom.The researcher served in the role of passive participant observer during the scheduled language arts period three days per week in the participating students’ classroom for a period of twenty-three weeks. Field notes were made in the classroom and coded, and audio tapes were recorded and transcribed of the tutoring sessions. Formal and informal interviews with the teacher, tutors, and participating students were conducted, transcribed, and coded. Lesson plans and reflections developed and written by the tutors were gathered and coded. Observations indicated that there were four types of reading required on a daily basis in the classroom. Assigned readings made by the teacher included narrative and expository texts. Pleasure readings were materials chosen by the students, but at certain times were teacher initiated and at other times, student initiated. The four types of reading found in the classroom were mirrored by the tutoring sessions. Students observed in the classroom could be divided into two types and four categories. Those with positive attitudes were …

This empirical study is concerned with the usefulness of proposed supplementary disclosures for oil and gas producers to financial analysts in valuing a company. It is concerned with what supplementary information is being used, to what extent it is being used and which type of information is used most. Three main research procedures are employed. In the first procedure, the Mann-Whitney U Test is applied to determine any significant difference between valuing an oil and gas producing company using basic financial statements and ratio data, and valuing the same company with this information plus the proposed disclosures. The second procedure involves applying the chi-square and Cramer's V statistics to determine whether the disclosure information caused switching in valuation method used for each of the cases. The third procedure tests for significant differences between financial ratios used for each case by employing the test of differences between two proportions. Additional evaluation attempts to determine analysts' perceived usefulness of each of the schedules of the proposed disclosures

Pseudomonas aeruginosa is a Gram-negative rod, aerobic, non-fermenting, oxidase positive, pigment producing, and nutritionally versatile bacterium. Infections by P. aeruginosa are the most important cause of morbidity and mortality in immunocompromised patients, given virulence factor production that suppresses antibiotic therapy and promotes persistent infection. This research is the first comprehensive report of the pyrimidine biosynthetic pathway for all phases of growth in minimal and rich media coupled with the evaluation of virulence factor production of P. aeruginosa in comparison to four other bacterial species (Pseudomonas putida, Pseudomonas fluorescens, Burkholderia cepacia, and Escherichia coli wild-type strains). Cellular growth and passing genetic information to the next generation depend on the synthesis of purines and pyrimidines, the precursors of DNA and RNA. The pyrimidine biosynthetic pathway is essential and found in most organisms, with the exception of a few parasites that depend upon the pyrimidine salvage pathway for growth. Both the pyrimidine biosynthetic and salvage enzymes are targets for chemotherapeutic agents. In our laboratory, research on pyrimidine auxotrophic mutants showed the role of the pyrimidine biosynthetic pathway and its intermediates on P. aeruginosa metabolism and impaired virulence factors production. The present research shows that pyrimidine enzymes are active in all phases of growth, …

The complete nucleotide sequence of the region encoding the DHCDH function of the pDK1 lower operon was determined. DNA analysis has shown the presence of two open reading frames, one gene consisting of 777 nucleotides encoding a polypeptide of 27.85 kDa and another gene of 303 nucleotides encoding a polypeptide of 11.13 kDa. The results of enzymatic expression studies suggest that DHCDH activity is associated only with xy1L. However although the addition of xy1T cell-free extracts to xy1L cell-free extracts does not produce an increase in DHCDH activity, subclones carrying both xy1L and xy1T exhibit 300- 400% more DHCDH activity than subclones carrying only xy1L.

This paradoxically titled collection of poems explores what the blues and blindness has come to mean to the author.

A work of creative fiction in novella form, this dissertation follows the first-person travails of Mitch Zeller, a 26-year-old gay man who is faced with an unexpected choice. The dissertation opens with a preface which examines the form of the novella and the content of this particular work.

World War II was a watershed in American history, altering Americans' perceptions of their place in society. This study focused on Bowie County, Texas, during the twenty-five-year period that began with America's entry into the war. The construction of two defense plants there, Red River Army Depot and Lone Star Army Ammunition Plant, brought immediate changes to surrounding communities, and local residents faced many challenges as they struggled to adjust. This study used extensive primary sources, including archival materials from Red River and Lone Star, oral histories from former employees, census information, minutes from the Texarkana Chamber of Commerce, and local newspapers, to document the social and economic impact of these plants on Bowie County. The body of this dissertation contains nine chapters. Chapters two and three describe how Bowie County obtained and constructed its defense plants, and chapters four through six focus on changes precipitated by the plants during the war years. Chapters seven through nine explore the social and economic impact of the defense presence on Bowie County through 1965. The impact of the defense industries on Bowie County was significant. Plant construction brought thousands of workers into the county, and local residents faced housing, transportation, and sanitation …

The treatment of alcoholism has had a unique historical development in the United States. This study provides a chronology of how the problem of alcoholism was defined and handled during various time periods in United States history. The process that evolved resulted in an abstinence based, comprehensive, multidisciplinary approach to the treatment of alcoholism as a primary disease based on the principles of Alcoholics Anonymous. This treatment modality, that developed outside of established medicine, is currently used by the majority of treatment providers. Seven individuals who have been actively involved in alcoholism treatment were interviewed. In addition to archival research, biographies and autobiographies were examined to gain a broad perspective. Because alcoholism is both a collective and an individual problem an effort was made to include a microsociological frame of reference within a broad sociological view. Alcoholism, or inebriety, was first perceived as a legal and moral problem. By the end of the 19th century, inebriety was recognized as an illness differing from mental illness, and separate asylums were established for its treatment. Alcoholism is currently accepted and treated as a primary disease by the majority of social institutions, but the legal and moral implications remain. National Prohibition in the …

This dissertation examines the results and strategies used in the 1978 Texas gubernatorial election to determine what issues, demographics, and campaign strategies led the Republican Party nominee, Dallas businessman Bill Clements, to defeat the Democratic nominee, Attorney General John Hill, to break the 105-year old Democratic lock on the governorship and how this victory affected the evolution of Texas into a two-party state. Research materials include manuscripts and published speeches, letters, oral interviews, elections results, and secondary materials.

Ways of Pulling A Person Out of the Water contains a preface, which discusses the writing process as well as a discussion of the short story form, ten original short stories, and two chapters of a novel-in-progress. A number of the short stories explore issues such as eating disorders, sexual violence, and artistic choice in the specialized context of the dance community. The novel chapters further develop one of the short stories, "When You Are the Camera and the Camera Is You." The narrator, Diane, explores her life coping with agoraphobia and her family's car accident.