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Lipids and Phospholipase Activity of Vibrio Cholerae

Description: One purpose of this investigation is to determine the fatty acid and lipid content of typical Vibrio cholerae cells. The comparison of cholera lipid constituents with those of closely-related bacteria might be of taxonomic value. Furthermore, chemical characterization of the cholera vibrio could provide useful criteria for identification of these disease-producing microorganisms.
Date: August 1972
Creator: Brian, Buford Leo
Partner: UNT Libraries
open access

A Study of the Physical Facilities of Industrial Arts Metalworking Laboratories in the State of Texas

Description: The purposes for conducting this study were to ascertain whether the housing for industrial arts metalworking laboratories was adequate, whether the enrollment of the school showed any correlation with the availability of a metalworking facility, and to what extent the physical facility for metalworking laboratories met current standards.
Date: December 1972
Creator: Teague, Ben W.
Partner: UNT Libraries
open access

A Case Study of Selected Plan A Special Education Inservice Programs in Texas

Description: This investigation is concerned with determining the extent of inservice education provided for special education personnel by the five pilot programs of Plan A. The two methods of determining this involvement are a case study of the pilot programs' inservice education and its relationship to resource agencies such as the Texas Education Agency and Regional Education Service Centers. The purposes of this study include the following: (1) determining the principles underlying the philosophy formu… more
Date: December 1972
Creator: Fite, Kathleen Elizabeth
Partner: UNT Libraries
open access

Mexican Americans: An Economically Significant Ethnic Market Segment

Description: The area of ethnic market segmentation has received little attention from practitioners or academicians of marketing since most minority groups immigrating to the United States have gradually assimilated the cultural norms and values, and thus the market behavior, of the American society as a whole. Preliminary investigation, however, indicates that Mexican Americans are an exception. To discover whether Mexican Americans represent a true ethnic market segment of economic significance, this stu… more
Date: December 1972
Creator: Ferguson, Richard Wayne, 1934-
Partner: UNT Libraries
open access

Existing Relationships Between Enrollment Size and Methods of Financial Management in the Public Universities of Texas Participating in the Ad Valorem Tax Fund

Description: The problem of this study is to ascertain the existing relationships between enrollment size and methods of financial management in selected public institutions of higher education. The purposes set forth for this investigation are to conduct a survey of the financial management methods of a major segment of Texas higher education, to analyze the existing relationships of these financial methods with increasing enrollments ranging from 2,537 to 26,531, and to assess the implications thereof fo… more
Date: August 1972
Creator: Childers, Lloyd Fred
Partner: UNT Libraries
open access

Effects of a Learning Center Method Versus Lecture Method of Teaching as Related to Achievement, Self-Concept, and Attitude of College Freshmen

Description: The major problem of this study involved a comparison of two methods of teaching English and biology to college freshmen. Subproblems investigated in this study involved the apparent influence of each method of teaching on achievement in each course, on the self-concept of the student, on the students' attitude toward college and toward the learning center, and the effect of the commuterresident status on achievement, self-concept, or attitude. The purpose of this study was to assess the effica… more
Date: December 1972
Creator: Tillerson, Charles Wayne
Partner: UNT Libraries
open access

The Refinement of a Policy-Capturing Model Used in the Selection of Administrative Interns

Description: The problem of this study is to refine the "policy-capturing" model used in the selection process of interns for the Administrative Leadership Training Program in a large metropolitan school district. The subjects for this study consisted of 416 candidates over a three-year period. The statistical procedure of multiple linear regression analysis was used to test the hypothesis that it would be possible to model the decision-making process so that the predictive value would be 90 per cent or hig… more
Date: December 1972
Creator: Stanley, Billie Joe
Partner: UNT Libraries
open access

Shubnikov-de Haas Effect Under Uniaxial Stress: A New Method for Determining Deformation Potentials and Band Structure Information in Semiconductors

Description: The problem with which this investigation is concerned is that of demonstrating the applicability of a particular theory and technique to two materials of different band structure, InSb and HgSe, and in doing so, determining the deformation potentials of these materials. The theory used in this investigation predicts an inversion-asymmetry splitting and an anisotropy of the Fermi surface under uniaxial stress. No previous studies have ever verified the existence of an anisotropy of the Fermi su… more
Date: December 1972
Creator: Hathcox, Kyle Lee
Partner: UNT Libraries
open access

A Comparison of Certain Factors in Students with and without Financial Aid at Austin College

Description: This study compares certain factors of Austin College financial aid recipients to the same factors in their classmates who received no financial assistance. First, this study attempts to determine whether there are significant differences in selected variables between these two groups. Second, the study seeks to identify the causes for students' withdrawing from the College. Subjects were randomly selected from two groups: (l) 100 subjects receiving financial assistance; and (2) 100 subjects no… more
Date: August 1972
Creator: Winder, James Boyd, 1935-
Partner: UNT Libraries
open access

The Effects of an Achievement Motivation Program on the Self-Concepts of Selected Ninth-Grade Students Representing Three Ethnic Groups

Description: The problem with which this investigation was concerned was that of determining the effects that an achievement motivation program had on changing the self-concepts and academic achievement among ninth-grade students in a triethnically mixed junior high school. The subjects for this study were ninth-grade students from a large southwestern city. The experimental program was conducted in a junior high school composed of Anglo, Mexican-American, and Negro students of approximately 30 per cent, 40… more
Date: December 1972
Creator: Allen, John G., 1925-
Partner: UNT Libraries
open access

Ludwig van Beethoven: 33 Variations on a Waltz by Diabelli, Op, 120, A Lecture Recital, Together with Three Recitals of Selected Works of J. S. Bach, L. van Beethoven, R. Schumann, F. Chopin, F. Liszt, S. Prokofiev, and E. Granados

Description: The lecture recital was given December 5, 1971. A discussion of Beethoven's 33 Variations on a Waltz by Diabelli, Op. 120 included the circumstances under which the work was composed, analysis of the composition, and controversial opinions on the Variations. The piece was then performed by memory. In addition to the lecture recital three other public recitals were performed. These consisted entirely of solo literature for the piano. The first solo recital was on April 12, 1970, and included wo… more
Date: December 1972
Creator: Da Roza, Natalia, 1940-
Partner: UNT Libraries
open access

An Analysis of the Understanding of Authority Relationships Between Chief District Administrators and Chief Campus Administrators in Multicampus Junior College Systems

Description: One of the newest organizational developments in the junior college world is the multicampus junior college system. The purpose of this study was to determine whether there is a difference in the understanding of authority relationships between chief district administrators and chief campus administrators in multicampus junior college systems. This information should be valuable to junior college administrators who are now, or will be, faced with the problem of clarifying this authority relatio… more
Date: December 1972
Creator: VanTrease, Dean Paul
Partner: UNT Libraries
open access

Isolation and Characterization of Malic Enzyme from Ascaris suum

Description: A procedure for the isolation of malic enzyme from muscle tissue of the roundworm Ascaris suum is described. The fractionation method yields relatively large quantities of the enzyme,with a specific activity of fifteen moles of malate converted to pyruvate and carbon dioxide per min per mg at 25º. Homogeneity was established with analytical ultracentrifugation, zone electrophoresis, isoelectric focusing, and rechromatography. The molecular weight of the enzyme was 250,000, and it is dissociated… more
Date: December 1972
Creator: Fodge, Douglas W.
Partner: UNT Libraries
open access

The Isolation and Characterization of a Hitherto Undescribed Gram-Negative Bacterium

Description: A unique undosciribed gramnegative rod is extensively characterized in this study. The cells of this unusual water isolate measure 1.2 X 6.5 microns, The most distinguishing characteristic of the bacterium is a polar tuft of 35-40 flagella that aggregate to function as a single organelle which is visible under phase contrast. Aging cells deposit poly- -hydroxybutyric acid granules which are bound by an inclusion membrane made up of four distinct layers. It also possesses an unusual exterior mem… more
Date: August 1972
Creator: Lassiter, Carroll Benson
Partner: UNT Libraries
open access

A Comparison of Physical Fitness and Anthropometric Measures of Pre-Adolescent Mexican-American and Anglo-American Males

Description: The problem of this study is that of comparing certain physical fitness and anthropometric measures for early adolescent Mexican-American and Anglo-American males. The purposes of the study are to determine if Mexican-American and Anglo-American males differ in physical fitness or anthropometric measures; to determine if the relationships between age and physical fitness, age and arthropometric measures, and anthropometric measures and physical fitness items are significantly different for Mex… more
Date: December 1972
Creator: Brogdon, Gayle Lyndon
Partner: UNT Libraries
open access

A Probabilistic Model for Evaluating Capital Investment Proposals for Petroleum Refineries

Description: The purpose of this study was to develop a probabilistic model that could be used by petroleum refiners to evaluate the economic potential of refinery capital investment proposals. The following two requirements were placed on the development at the outset: (1) that the model use linear programming to simulate refinery operations; and (2) that the model keep computer time within reasonable bounds. A probabilistic model was developed that requires the following steps for its application: (1) use… more
Date: December 1972
Creator: Martin, William Basil, Jr.
Partner: UNT Libraries
open access

A Proposal for Instruction of Poetry at El Centro College

Description: The problem of this study was to develop a proposal for the teaching of poetry for the purposes of contributing to the student's understanding and enjoyment. Surveys and summaries were made of scholarly writings on the junior college student, existential theories of education, and theories of poetry. A bibliography was constructed for each subject from resources of the North Texas State University library. Conclusions from each survey were derived from the selected resources and used to prepare… more
Date: August 1972
Creator: Drake, Jesse Henry
Partner: UNT Libraries
open access

Role Expectations of the Texas Public High School Counselor as Perceived by Various Professional Groups

Description: This study seeks as its purpose to establish an .objective evaluation of the counselor and his role as seen by various professional groups. The primary purpose of the investigation is to compare the perceptions of these various groups as to the tasks a counselor may perform. The study involves the distribution of an opinionn-aire to one hundred public high school counselors, one hundred public high school principals, sixty-three counselor-educators, and forty-two administrator-educators. A retu… more
Date: August 1972
Creator: Wills, Curtis Edwin, 1941-
Partner: UNT Libraries
open access

The Activity of Certain Facial Muscles in the B-Flat Soprano Clarinet Embouchure: An Exploratory Study Utilizing Electromyography

Description: The problem with which this investigation is concerned is that of facial muscle activity in forming and maintaining the soprano clarinet embouchure. The purposes of the study are to collect and analyze data in the following areas: 1. Activity of the following muscles during performance on the clarinet: (1) upper orbicularis oris, (2) lower orbicularis oris, (3) upper half of the buccinator, and (4) lower half of the buccinator. Muscular activity is read as electronic potential and is presented … more
Date: August 1972
Creator: Newton, William Jackson, 1932-
Partner: UNT Libraries
open access

The Effects of Videotaping and Playback on the Communication Performance of the Introverted and Extroverted Individual

Description: The problem with which this investigation is concerned is that of determining the effects of videotaping and subsequent playback on the communication performance of introverted and extroverted individuals. The principal method of determining these effects is the subjective judgment of a panel of qualified speech instructors who viewed videotaped speeches made by the subjects. All subjects were repeatedly subjected to videotaping, and half were exposed to playback. Statistically, by using one-wa… more
Date: December 1972
Creator: Wilson, John William
Partner: UNT Libraries
open access

Brahms and the Character Piece: Emotion Guided by Intellect, a Lecture Recital, Together with Three Recitals of Selected Compositions by Beethoven, Brahms, Chopin, Debussy, Mozart, Prokofieff, and Ravel

Description: The lecture recital was given October 15, 1971. The subject of the discussion was Brahms and the Character Piece: Emotion Guided by Intellect, and it included historical and biographical information, an analysis of Brahms' romantic-classic style, a general analysis of the six character pieces in Opus 118, and performance of Opus 118 by memory. In addition to the lecture recital, three other public recitals were performed. These three programs were comprised of solo literature for the piano. The… more
Date: December 1972
Creator: Blocker, Robert L. (Robert Lewis), 1946-
Partner: UNT Libraries
open access

A Theory of Brasswind Embouchure Based upon Facial Anatomy, Electromyographic Kinesiology, and Brasswind Embouchure Pedagogy

Description: The purposes of this study are to identify and describe the function and control of facial muscles as related to sound production on brasswind instruments, to explore electromyographic theory and techniques with particular regard to the function and control of facial muscles, to identify basic theories of embouchure among brasswind teachers and performers, to develop a theory of brasswind embouchure based upon the preceding factors, and to propose recommendations with regard to brasswind pedago… more
Date: August 1972
Creator: Isley, Charles L., 1920-
Partner: UNT Libraries
open access

A Visual-Aural Self-Instructional Program: In Pitch-Error Detection for Student Choral Conductors

Description: This study seeks to develop and evaluate a program of selfinstructional drill materials for improving the ability of students to detect pitch errors in choral singing. The specific purposes of the study are as follows: (1) To develop and validate a visualaural test for pitch-error detection; (2) to develop a visual-aural, self-instructional program for improving the ability of students to detect pitch errors; and (3) To determine whether the program of self-instructional drill materials modifie… more
Date: August 1972
Creator: Michels, Walter Joseph, 1930-
Partner: UNT Libraries
open access

Martin Agricola's 'Musica Instrumentalis Deudsch': A Translation

Description: The problem with which this investigation is concerned is that of presenting a concise English translation of the book which Martin Agricola wrote in 1528 in German on the musical instruments and practices of his time. In addition to the translation itself, there is a major section devoted to a comparison of the material of Musica instrumentalis deudsch with other books and treatises on the same and related subjects which were written at approximately the same time or within the next hundred ye… more
Date: May 1972
Creator: Hollaway, William W.
Partner: UNT Libraries
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