6,050 Matching Results

Search Results

Results: 1 - 24 next
open access

The Relationship Between the Perception of Parental Loving-Rejecting Behavior and Scholastic Aptitude in College Students

Description: The purpose of this study was to examine the relationship between the perception of parents as Loving-Rejecting(L-R) on the basis of the Roe-Siegleman Parent-Child Relations Questionnaire (PCR), scholastic achievement, as measured by the grade point average (GPA), and scholastic aptitude, as measured by the Scholastic Aptitude Test (SAT).
Date: May 1973
Creator: Smith, Jamie M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Variations of the Mouthpiece Chamber and Their Effects on the Harmonic Spectrum of the Alto Saxophone

Description: It is the intent of this study to describe the harmonic activity that is present in the tone of the alto saxophone and to compare the spectra of selected tones when the chamber of the mouthpiece is changed in size and shape. It is hoped that the following questions might be answered: 1. What does the harmonic spectrum of the alto saxophone contain in terms of harmonic activity and the relative intensities of these harmonics? 2. What basic changes in chamber shape and size have evolved from early models? 3. Is there an appreciable change in the envelope of harmonic activity when the mouthpiece chamber is altered in size and shape? 4. Is it possible for these changes to be used to explain common terminology of the musician in describing tone qualities?
Date: August 1970
Creator: Guillaume, Dennis A. (Dennis Andrew)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Microbial Actinomycete Population Studies in Lacustrine Substrates

Description: The discovery of the production of antibiotic materials by certain members of the Actinomycetales has stimulated the study of these organisms over the last two decades, raising them from a position of little significance to one of noticeable importance. These studies include investigations concerning the physiology and biochemistry of the actinomycetes.
Date: August 1968
Creator: Brothers, James Walker
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Construction and Testing of a Charging System and a Corona Column for an Electrostatic Accelerator

Description: The purpose of the project described in this paper has been to complete construction and to determine the operating characteristics of a charging system and a corona-type controlled leakage system for the compact Van de Graaf generator now under construction at North Texas State University. Calibration data of the generating voltmeter to be used for determining the potential developed by the generator are also included in the paper.
Date: January 1964
Creator: Daniel, Robert Earl
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Development and Use of the Bass Clarinet in the Symphony Orchestra

Description: The purpose of this study is to trace the development of a comparatively young orchestral instrument, the bass clarinet, and its use in the symphony orchestra. The first chapter concerns the development of the bass clarinet from the earliest imperfect specimen to the modern day instrument. The second chapter discusses physical characteristics that are peculiar to the bass clarinet. The third chapter deals with the particular methods of using the bass clarinet in orchestral literature by various composers, from its introduction into the orchestra by Meyerbeer through the present.
Date: August 1966
Creator: Hearn, Dan Kent
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Coming of Conscription in Britain

Description: The subject of this thesis is the conscription debate in Great Britain in the late nineteenth and early twentieth centuries, defined in a social-cultural context. The basic assumption is that a process of cultural conditioning works to determine human actions; actions therefore can be understood by examining cultural conditioning. That examination in this thesis is limited to a study of social and intellectual influences relating to conscription as they acted upon various groups in the English community prior to the Great War. The thesis also discusses the 1915-1916 crisis over actual adoption of conscription, in light of these influences.
Date: May 1972
Creator: Baker, Suzanne Helen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Distribution of Nighttime F-region Molecular Ion Concentrations and 6300 Å Nightglow Morphology

Description: The purpose of this study is two-fold. The first is to determine the dependence of the molecular ion profiles on the various ionospheric and atmospheric parameters that affect their distributions. The second is to demonstrate the correlation of specific ionospheric parameters with 6300 Å nightglow intensity during periods of magnetically quiet and disturbed conditions.
Date: December 1970
Creator: Brasher, William Ernest, 1939-
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Molecular Dynamics and Interactions in Liquids

Description: Various modern spectroscopies have been utilized with considerable success in recent years to probe the dynamics of vibrational and reorientational relaxation of molecules in condensed phases. We have studied the temperature dependence of the polarized and depolarized Raman spectra of various modes in the following dihalomethanes: dibromomethane, dichloromethane, dichloromethane-d2, and bromochloromethane. Among other observed trends, we have found the following: Vibrational dephasing times calculated from the bend) and (C-Br stretch) lineshapes are of the same magnitude in CI^B^. The vibrational dephasing time of [C-D(H) stretch] is twice as long in CD2Cl2 as in CH-^C^, and the relaxation time of (C-Cl stretch) is greater in CI^C^ than in CD2CI2. Isotropic relaxation times for all three stretching vibrations are significantly shorter in C^BrCl than in CI^C^ or CI^B^. Application of the Kubo model revealed that derived modulation times are close to equal for equivalent vibrations in the various dihalomethanes. Thus, the more efficient relaxation of the A^ modes in CE^BrCl can be attributed almost entirely to the broader mean squared frequency perturbation of the vibrations in this molecule.
Date: May 1985
Creator: Chen, Jen Hui
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Dynamic Encounter: Shakespearean Influence on Structure and Language in Moby-Dick

Description: An understanding of the influence of Shakespeare on the structure and language of Moby-Dick is important because the plays of Shakespeare gave Melville a sudden insight into the significance of form and because his absorption of Shakespearean rhetoric enabled him to solve a serious artistic problem. In Moby-Dick Melville wished to write a work of symbolic fiction which would have both epic scope and tragic depth, but his difficulty lay in finding a structural and stylistic method which would provide the amplitude necessary to epic and at the same time could achieve the compression and verbal economy necessary to tragedy. He solved this problem by learning from Shakespeare to create a multi-layered dramatic structure and to use a dramatic language which becomes one layer of that structure. In Shakespeare's greatest plays there is a virtual fusion of form and meaning, and it is this fusion which, in its greatest moments, the language of Moby-Dick achieves.
Date: May 1981
Creator: Smith, Marion L. (Marion Lynch), 1937-
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Value of Visual Media in the Achievement of Instructors' Objectives as Perceived by Instructors in Predominantly Black State-Supported Colleges and Universities in the State of Louisiana

Description: The problem of this study was to determine the extent to which instructors perceived visual media as being valuable in achieving their classroom objectives in predominantly black, state-supported colleges and universities in the State of Louisiana. Questionnaires were mailed to 165 college and university instructors in colleges of education in predominantly black state-supported universities in Louisiana. Of the 165 questionnaires mailed, 139 were returned. All participants used in the study were teaching at least one course in education during the time the questionnaire was administered. The study is descriptive. The data were collected by means of a questionnaire, and analyzed by percentages, means, and standard deviations. One-way analysis of variance was used to test the differences in attitudes among the faculty members in the study. The level of significance was set at .05.
Date: December 1980
Creator: Pennywell, Phillip
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Woman Suffrage and the States: A Resource Mobilization Analysis

Description: This dissertation fills a conspicuous gap in the literature on the U.S. woman suffrage movement by developing and testing a model of state woman suffrage success. This model is based on a version of the resource mobilization perspective on social movements which emphasizes the importance of social movement organizations (such as the National American Woman Suffrage Association) as resource-gathering agencies which can exploit the structure of organized politics by mobilizing their own resources and neutralizing those of opponents. Accordingly, this model taps four alternative types of variables used by woman suffrage scholars to explain state success: state political structure, NAWSA mobilization, and liquor and allied interests (opponents of woman suffrage) as well as demographic characteristics.
Date: May 1984
Creator: Lance, Keith Curry
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Ozonolysis and Cycloaddition Reaction of (Trimethylsilyl)ketene

Description: The purpose of this investigation was to study the chemistry of the new and novel (trimethylsilyl)ketene. This ketene was synthesized by pyrolysis of (trimethylsilyl)ethoxyacetylene which was prepared from ethoxyacetylene and methyllithium. (Trimethylsilyl)ketene is a very stable and isolable ketene which does not dimerize and, therefore, provides an opportunity for some unique studies that have not been possible with other monosubstituted ketene.
Date: August 1980
Creator: Saidi, Kazem
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

(4+2)-Cycloaddition Reactions of Ketenes; Pyranones

Description: This study deals with the (4+2)-cycloaddition reactions of 4-π electron compounds with ketenes. Chloroketenes were generated in situ from the corresponding chlorinated acid chlorides in the presence of the ketenophiles. Chloro-, dichloro- and diphenylketenes reacted with 1-methoxy-3-trimethylsiloxy-l,3-butadiene, and 2,4-bis(trimethylsiloxy)-1,3-pentadiene to yield the corresponding dihydropyrans. The dihydropyrans yielded substituted 4-pyranones on hydrolysis.
Date: August 1983
Creator: Agho, Michael O. (Michael Osarenogowu)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Synthesis of Anthracyclines Related to Adriamycin

Description: This dissertation reports the preparation of several types of anthraquinones structurally related to adriamycin. It describes the synthesis of two types of 2-aminoquinizarin compounds. It also presents two new syntheses of a heterocyclic tetracyclic ring system, similar to the aglicone ring system of adriamycin. A series of 2-aminoquinizarins was prepared by adding several primary amines to quinizarin. Quinizarin was shown to be essentially inert toward secondary amines. Several secondary amine adducts with quinizarin have been prepared, however, by treating the bis-boroacetate ester of quinizarin with the amines. Both types of 2-aminoquinizarin compounds exhibit outstanding potential for possessing antineoplastic activity, and several have been submitted to the National Cancer Institute for testing in their screening program for antineoplastic agents.
Date: May 1981
Creator: White, Roger J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Livestock Legacy: A History of the Fort Worth Stockyards Company 1893-1982

Description: This dissertation outlines the creation and history of the Fort Worth Stockyards Company from its conception to the time of this dissertation's publication. The Fort Worth Stockyards Company was created by Greenleif W. Simpson and Louville V. Niles. This company would soon cement Fort Worth as the premier livestock producer in America, soon surpassing Chicago.
Date: August 1982
Creator: Pate, J'Nell L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Gauge-Invariant Energy Variational Principle Application to Anisotropic Excitons in High Magnetic Fields

Description: A new method is developed for treating atoms and molecules in a magnetic field in a gauge-invariant way using the Rayleigh-Ritz energy variational principle. The energy operator depends on the vector potential which must be chosen in some gauge. In order to adapt the trial wave function to the gauge of the vector potential, the trial wave function can be multiplied by a phase factor which depends on the spatial coordinates. When the energy expectation value is minimized with respect to the phase function, the equation for charge conservation for stationary states is obtained. This equation can be solved for the phase function, and the solution used in the energy expectation value to obtain a gauge-invariant energy. The method is applicable to all quantum mechanical systems for which the variational principle can be applied. It ensures satisfaction of the charge conservation condition, a gauge-invariant energy, and the best upper bound to the ground-state energy which can be obtained for the form of trial wave function chosen.
Date: December 1983
Creator: Kennedy, Paul K. (Paul Kevin)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Study of Low Temperature Silene Generation

Description: The reactions of tert-butyl-, sec-butyl-, and n-butyllithium with dimethylfluorovinylsilane include addition to the double bond to give both silene and silenoid intermediates, fluorine substitution, and a novel vinyl substitution. For the tert-butyllithium reaction, product stereochemistry and trapping experiments using both cyclopentadiene and methoxytrimethylsilane show that silenes are not formed in THF. In hexane about 67% of the 1,3-disilacyclobutanes obtained arise from silene dimerization while 33% are formed by silenoid coupling. In hexane the order of reactivity for addition, t-Bu > sec-Bu > n-Bu, is opposite that for fluorine substitution. The vinyl substitution is most significant with secondary alkyllithium reagents including the tert-butyllithium adduct to dimethylfluorovinylsilane and with sec-butyllithium itself. Evidence for the formation of vinyllithium or ethylene in the process could not be obtained.
Date: August 1985
Creator: Cheng, Albert Home-Been
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Analysis of Factors Related to Texas Public School Nurses' Delivery of Health Services to Handicapped Children

Description: This study investigated the factors related to the delivery of health care services by school nurses. The purposes of the study were divided into three categories. The first was the nurses' identification of the handicapping conditions of children in their caseloads and their perceptions of the children's health problems. The second involved data about the nurses' educational background and preparation they felt as useful in their work with children with handicaps; data on barriers which limit or prevent nursing care of these children was also solicited. Third, information was sought about future plans of nurses for obtaining more education, barriers perceived which hindered their plans, and special considerations in program planning that would facilitate their educational goals. Institutional guidelines were written based on findings of the study and the review of literature.
Date: August 1983
Creator: Drapo, Peggy Brooks
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

GC/MS Analysis of Chlorinated Organic Compounds in Municipal Wastewater After Chlorination

Description: A study has been conducted for the qualitative and Quantitative analysis of chlorinated organic compounds in water. The study included the adaptation of Amberlite XAD macroreticular resin techniques for the concentration of municipal wastewater samples, followed by GC/MS analysis. A new analytical method was developed for the determination of volatile halogenated organics using liquid-liquid extraction and electron capture gas chromatography. And, a computer program was written which searches raw GC/MS computer files for halogen-containing organic compounds.
Date: August 1982
Creator: Henderson, James E. (James Edward)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Gender Specific Reactions to Incest

Description: The problem of incest is beginning to receive a recognition and research attention long overdue. Becoming more evident is the prevalence and far reaching effects of incest. Currently, little distinction is made between the treatment approach for males and females, yet research indicates differences between the two sexes. This study explores possible differences between male and female incest victims in (1) their moral ethic, (2) their self-definition, (3) the basis from which they felt compelled to comply with the incestuous abuse, (4) the reasons they believed the sexual abuse was right or wrong, (5) the reasons for telling someone or keeping the incest a secret, (6) how they decided whether or not they made the right choice, (7) the manner in which they have changed since the abuse began, (8) the content and degree of their own guilt and/or lowered esteem, and (9) the ideas they have of changes which could have prevented the abuse.
Date: May 1985
Creator: Marten, Linda M. (Linda Mae)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Regulation of Lactobacillic Acid Formation in Lactobacillus Plantarum

Description: Cyclopropanation of the unsaturated fatty acid moieties of membrane phospholipids is a commonly observed phenomenon in a number of bacterial systems. The cyclopropane fatty acids are usually synthesized during and after the transition from exponential growth to stationary phase, or under such environmental conditions as acidic culture pH, low oxygen tension or high salt concentrations. S-Adenosylmethionine, the ubiquitous methyl group donor, provides the methylene bridge carbon in the reaction catalyzed by cyclopropane fatty acid synthase. Also formed in the reaction is S-adenosylhomocysteine, a potent inhibitor of cyclopropane fatty acid synthase, which is degraded by S-adenosylhomocysteine nucleosidase. This work provides evidence for at least two modes of regulation of lactobacillic acid synthesis, the cyclopropane fatty acid formed from cis-vaccenic acid (cis-11,12-octadecenoic acid), in Lactobacillus piantarum.
Date: December 1980
Creator: Smith, Darwin Dennis
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
Back to Top of Screen