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UNT Theses and Dissertations
246
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237
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67
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54
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52
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52
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52
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45
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The Eosinophil and Lysophospholipase Responses in Mice Infected with Trichinella spiralis: A Role for the Lymphocyte and Macrophage
The relationship among eosinophils, lysophospholipase activity and the immune response in animals infected with Trichinella spiralis was studied using in vivo and in vitro techniques. In an in vivo experiment, anti-thymocyte serum (ATS) was administered to mice infected with T. spiralis and its effects on intestinal lysophospholipase (EC 3.1.1.5.) activity, peripheral blood, bone marrow and intestinal eosinophilia were measured in the same experimental animal. The ATS caused a significant temporally related suppression of both the tissue lysophospholipase response and eosinophilia, in all three compartments. These findings support the hypothesis that parasite-induced eosinophilia is the cause of the increased lysophospholipase activity of parasitized tissue and that the responses are thymus cell-dependent. In vitro experiments demonstrated that the eosinophil was the primary inflammatory cell source of lysophospholipase among eosinophils, neutrophils macrophages and lymphocytes. The role of other cells and antigen in the production of the enzyme by the eosinophil was also investigated in vitro• Results demonstrated that eosinophils cultured with both T. spiralis antigen and other leukocytes yielded enzyme activities significantly greater than eosinophils cultured alone or with only antigen. More specific experiments showed that T-lymphocytes were the cells responsible for influencing the eosinophils' lysophospholipase activity in the presence of antigen, and …
Date:
August 1986
Creator:
Adewusi, Iyabode Olukemi, 1958-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Quasi-Experimental Study of Behavior in the Professional Negotiation Process: An Analysis of the Nigerian Setting
The problem investigated by this study was that of understanding types of behaviors exhibited by participants in negotiations processes and impact of behaviors on collective bargaining in Nigeria. The study's three purposes were to describe the nature and extent of interpersonal conflict that occurs in collective bargaining, to determine the consequences that stem from such conflict, and to suggest the behaviors and performances during the face-to-face negotiations that should exist to enhance labor-management relations in Nigerian public education. This study examined behavior in negotiations by using simulation, i.e., a quasiexperimental method. Four outcomes of negotiations--time required to reach agreement, terms of agreements, verbal behavior exhibited during negotiations, and satisfaction derived by negotiators in negotiations—were examined.
Date:
August 1986
Creator:
Akiri, Agharuwhe Anthony, 1950-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Saudi Arabia and United States Multinationals: A Partnership in Economic Development
This study has been primarily concerned with the pattern of economic development and the role of the multinational corporations (MNC's) in that process in the Kingdom of Saudi Arabia. Two contrasting theoretical frameworks were adopted to assess the pattern of economic development followed in the Kingdom of Saudi Arabia from 1970 through 1983. The first theoretical perspective is the neoclassical approach to economic development which postulates that the productive resources at the disposal of a country and the institutions developed to guide the prudent use of them are paramount to a balanced development. On the other hand, Hymer's contrasting perspective is based on the Law of Uneven Development. Essentially, Hymer claimed that inequality is built into the growth mechanisms of the present day world capitalist economic system that shapes the international economy through the agency of the multinational corporations. Therefore, any involvement by the MNC's is necessarily hierarchical, and characterized by dominance and dependence as well as wealth and poverty, particularly between the industrial countries of Western Europe and North America and the less developed countries in the Third World societies. Ironically, the Saudi Arabian case shows that Hymer's Law of Uneven Development is questionable. First, instead of the location …
Date:
August 1986
Creator:
Al-Babtein, Ahmed
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Multiple Window Editor
This paper is written to present the design purpose and design process of the Multiple Window Editor. Multiple Window Editor is a software which allows the user to edit or view different files or the same file on the screen by the window facilities provided by this software. All the windows can be dynamically created, changed, moved, and destroyed. The main purpose of this program is to improve the programming environment for the users. The design motivations will be introduced through the comparison of the present existing window facilities and the editor components. The design process will be introduced by analyzing the design decision, design tradeoffs and implementation problems.
Date:
June 1986
Creator:
Alphy, Yu Cherng-Der
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Letter to the Editor: Bozzano and Deathbed Visions [#2]
Letter written to the editor of the Journal of Near-Death Studies discussing concerns about research approaches based on the work of Ernesto Bozzano regarding deathbed visions.
Date:
Autumn 1986
Creator:
Alvarado, Carlos S. & Stevenson, Ian
Object Type:
Letter
System:
The UNT Digital Library
Prediction of Business Failure as a Criterion for Evaluating the Usefulness of Alternative Accounting Measures
This study examines the usefulness of general price level information (GPL) and current cost information (CC) originally provided by SFAS No. 33 as compared to historical cost information (HC) in predicting bankruptcy. The study also examines the usefulness of GPL data versus CC data when each supplements HC data. In addition, this study tests the usefulness of the three types of information systems combined in one model (HC, GPL, and CC) versus HC data in predicting bankruptcy. The study focuses on the predictability of business failure using financial ratios as predictors. A comparison of these predictors is made in order to identify the accounting system that yields a better prediction of bankruptcy. Two multivariate statistical techniques, multiple discriminant analysis (MDA) and logistic regression analysis (LRA), are used to derive the ex—post classification and the ex-ante prediction results. Six functions are developed, based on ratios computed with HC, CC, GPL, the combined HC and GPL, the combined HC and CC, and the combined HC, GPL, and CC. The resulting functions are used to classify 40 firms as failed or nonfailed. The analysis is repeated for three time bases—one, two, and three years before bankruptcy. The main results of the various analyses …
Date:
August 1986
Creator:
Aly, Ibrahim M. Mohamed
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 1, January 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
January 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 2, February 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
February 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 3, March 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
March 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 4, April 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
April 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 5, May 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
May 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 6, September 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
September 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 7, October 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
October 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 8, November 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
November 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 9, December 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
December 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Chemical Information Bulletin, Volume 38, Number 1, Spring 1986
Periodic supplement for "the regular journals of the American Chemical Society," containing annotated bibliographies of chemical documentation literature as well as information about meetings, conferences, awards, scholarships, and other news from the American Chemical Society (ACS) Division of Chemical Literature.
Date:
Spring 1986
Creator:
American Chemical Society. Division of Chemical Information.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Chemical Information Bulletin, Volume 38, Number 2, Summer 1986
Periodic supplement for "the regular journals of the American Chemical Society," containing annotated bibliographies of chemical documentation literature as well as information about meetings, conferences, awards, scholarships, and other news from the American Chemical Society (ACS) Division of Chemical Literature.
Date:
Summer 1986
Creator:
American Chemical Society. Division of Chemical Information.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Chemical Information Bulletin, Volume 38, Number 3, Fall/Winter 1986
Periodic supplement for "the regular journals of the American Chemical Society," containing annotated bibliographies of chemical documentation literature as well as information about meetings, conferences, awards, scholarships, and other news from the American Chemical Society (ACS) Division of Chemical Literature.
Date:
Autumn 1986
Creator:
American Chemical Society. Division of Chemical Information.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
A Study of the Demographic Status, Actual Role and Ideal Role of the Elementary School Assistant Principal in Texas
This study analyzes the status and job functions of the 546 elementary school assistant principals in Texas during the 1985-1986 school year. It is concerned with the status of the position and the degree of responsibility assigned to the assistant principal for forty-eight specific job functions in the actual and ideal practice. A sample of 125 assistant principals, 125 supervising principals and a population of 135 superintendents whose districts employ assistant principals were included in the study. All three groups completed the role survey instrument. The results were analyzed by using the one-sample chi-square test to determine whether significant differences existed among the perceptions of the superintendents, principals, and assistant principals at the .01 level. The return rate was 60.8 percent for the assistant principals and principals and 84.6 percent for the superintendents.
Date:
August 1986
Creator:
Anthony, Dean Wade
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Determining the Validity of the Kaufman Assessment Battery for Children (K-ABC) with Learning Disabilities
This study investigated the relation of the Kaufman Assessment Battery for Children (K-ABC) with the Wechsler Intelligence Scale for Children - Revised (WISC-R) for learning disabled (LD) children, the relation of K-ABC Achievement subtests with other achievement tests, and the relation of verbal and perceptual abilities assessment and the K-ABC. One hundred white, middle to above socioeconomic status (SES), LD students 6 to 12 1/2 years old were administered the K-ABC in addition to the test battery used to identify them. Findings indicated significant differences (2<-01) between WISC-R Full Scale scores and KABC MPC scores, with MPC scores being 3.33 points lower. Significant correlations (2<-01) were found between the following: (a) WISC-R Performance scores and K-ABC Simultaneous scores, (b) K-ABC Sequential and Simultaneous scores, (c) WISC-R Performance and K-ABC Sequential scores, (d) K-ABC Arithmetic and WRAT Arithmetic, and (e) K-ABC Reading Understanding and the following: Woodcock Word Identification, Woodcock Passage Comprehension, WRAT Reading, and Durrell Silent Reading. The study found the MPC correlates higher with tests of perceptual ability than with tests of verbal ability. Results indicate the following: (a) the WISC-R and K-ABC can substitute each other when measuring overall intelligence, (b) the WISC-R and K-ABC do not measure …
Date:
August 1986
Creator:
Antonetti, Robert C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Vitamin B-6 Status of Patients with Chronic Obstructive Pulmonary Disease
The problem of this study is to determine the vitamin B-6 status of patients who have chronic obstructive pulmonary disease (COPD). Erythrocyte aspartate transaminase assay was the method for measuring vitamin B-6 status. The vitamin B-6 status was examined in thirty subjects (ten COPD subjects and twenty control subjects). An unpaired t-test was used to compare the vitamin B-6 status of the COPD group versus the control group. Four determinants (percentage stimulation, ratio of basal to stimulated activity, basal activity, and stimulated activity) were used to determine vitamin B-6 status in both groups of subjects. Percentage stimulation and ratio of basal to stimulated activity were not significantly different (control group versus COPD group) at the .05 level. However, two of ten COPD subjects had values for percentage stimulation that were two standard deviations above the mean, indicating a poor B-6 status. In contrast, basal activity and stimulated activity of erythrocyte aspartate transaminase were found to be significantly lower at the .05 level in the COPD group than the control group. Therefore, the COPD subjects as a group had some biochemical characteristics of a lower level of vitamin B-6 than the controls.
Date:
December 1986
Creator:
Anurak Bhunthurat
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of the Current Texas School Finance System to Determine to What Extent it Meets Criteria for Equity Concerning School Finances
The main purpose of this study was to determine the effect of Texas House Bill 72 on equalization of finances in the public school districts of Texas. House Bill 72 is a finance reform bill which was passed by the Texas Legislature during the Summer of 1984. This study involves basically three steps. First, current criteria for equity as defined by school finance "experts" and recent definitive court decisions were determined. Second, financial data from the Texas Education Agency were statistically analyzed for the 1984-1985 school year. Third, the statistical analysis was used to determine if the current Texas school finance plan meets the current criteria for equity. The population used in the study was 1,068 school districts. Based on the findings of this study the following conclusions were drawn. 1. The use of a per capita flat grant by the Texas Public School Finance System contributes to the unequalizing of financial resources available to school districts. 2. School districts with greater property index values are required to exercise very little effort toward the support of their public schools. 3. School districts with high property index values tend to have lower effective tax rates and high per-pupil expenditures. 4. School …
Date:
December 1986
Creator:
Arrington, Ronald L. (Ronald Lee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Manufacturer [Sic] of Densified-Refuse Derived Fuel (d-RDF) Pellets and Methods for the Determination of d-RDF Pellet Densities
There are 150 million tons of Municipal Solid Waste (MSW) annually produced in the United States, which is approximately equivalent to 150 million barrels of oil. MSW production is inexhaustible, and is increasing on an annual per capita basis of approximately three per cent. After controlling the moisture and adding a binder, the combustible portion of MSW was converted to pellets. The objects of this project were to 1) evaluate the binder, 2) prepare the pellets, and 3) evaluate the pellets with regard to density. The manufacture of pellets was conducted at the Naval Air Station, Jacksonville, Florida. The evaluation of the binders and the pellets was done at North Texas State University (NTSU). There were three procedures for measuring the density. The first, using water displacement, was from the American Society for Testing and Material (ASTM). The second, using wax coating, was also from ASTM. The third, using sharply-cut cylindrical pellets, was developed at NTSU.
Date:
December 1986
Creator:
Attili, Bassam Saleem
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Independent Quadtrees
This dissertation deals with the problem of manipulating and storing an image using quadtrees. A quadtree is a tree in which each node has four ordered children or is a leaf. It can be used to represent an image via hierarchical decomposition. The image is broken into four regions. A region can be a solid color (homogeneous) or a mixture of colors (heterogeneous). If a region is heterogeneous it is broken into four subregions, and the process continues recursively until all subregions are homogeneous. The traditional quadtree suffers from dependence on the underlying grid. The grid coordinate system is implicit, and therefore fixed. The fixed coordinate system implies a rigid tree. A rigid tree cannot be translated, scaled, or rotated. Instead, a new tree must be built which is the result of one of these transformations. This dissertation introduces the independent quadtree. The independent quadtree is free of any underlying coordinate system. The tree is no longer rigid and can be easily translated, scaled, or rotated. Algorithms to perform these operations axe presented. The translation and rotation algorithms take constant time. The scaling algorithm has linear time in the number nodes in the tree. The disadvantage of independent quadtrees is …
Date:
December 1986
Creator:
Atwood, Larry D. (Larry Dale)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library