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Use of a semiconductor laser in infrared spectroscopy

Description: A semiconductor laser has certain properties which makes its use desirable as a continuous monitor of atmospheric pollutants. Its energy output is concentrated in widely separated energy modes of very narrow bandwidths (less than 10/sup -5/ cm/sup -1/) which can be centered on one infrared absorption line of one gas. This makes the laser quite selective. The energy in each mode is typically greater than 200 ..mu.. watts, and, because of the laser's small size, its light energy can be colli… more
Date: December 1, 1977
Creator: Morris, R. N.
Partner: UNT Libraries Government Documents Department
open access

Inductively coupled plasma--atomic emission spectrometry: trace elements in oil matrices

Description: The simultaneous determination of up to 20 trace elements in various oil matrices by inductively coupled plasma-atomic emission spectrometry is reported. The oil matrices investigated were lubricating oils (for wear metals), fuel oil, centrifuged coal liquefaction product, crude soybean oil, and commercial edible oils. The samples were diluted with appropriate organic solvents and injected into the plasma as an aerosol generated by a pneumatic nebulization technique. Detection limits of the 28 … more
Date: December 1, 1977
Creator: Peterson, C. A.
Partner: UNT Libraries Government Documents Department
open access

Analytical applications of resins containing amide and polyamine functional groups

Description: A dibutyl amide resin is used for the separation of uranium(VI), thorium(IV), and zirconium(IV) from each other and several other metal ions. Uranium(VI) and thorium(IV) are determined in the presence of large excesses of foreign metal ions and anions. A practical application of the amide resin is studied by determining uranium in low grade uranium ores. The amide resin is also used for the selective concentration of gold(III) from sea water.
Date: December 1, 1977
Creator: Orf, G. M.
Partner: UNT Libraries Government Documents Department
open access

Lanthanide extraction with 2,5-dimethyl-2-hydroxyhexanoic acid

Description: This research is concerned with the solvent extraction into chloroform of the lanthanides, using 2,5-dimethyl-2-hydroxyhexanoic acid (DMHHA). This acid is the first ..cap alpha..-hydroxy aliphatic acid to be studied as an extracting agent for the lanthanides. The chloroform-water DMHHA partition constant was determined to be 1.0 (at 0.1 M ionic strength and 25/sup 0/C). The acid dimerizes in chloroform with a constant of 56. The light lanthanides can be extracted into chloroform by forming comp… more
Date: December 1, 1977
Creator: Miller, J. H.
Partner: UNT Libraries Government Documents Department
open access

Multiconfigurational electronic wavefunctions in the full optimized reaction space: the isomerization of nitrosyl hydride to nitrogen hydroxide in the lowest singlet and triplet states

Description: Energy curves are determined for the lowest singlet and triplet states of the HNO molecule. The geometry is varied in that the hydrogen moves through 13 positions around the NO core to describe the isomerization reaction HNO yields HON. Quantitatively determined are the stable and metastable equilibrium positions in both states, the energy differences between these two equilibrium positions and between the two states, and the barriers with respect to isomerization. The calculations are carried … more
Date: December 1, 1977
Creator: Dombek, M. G.
Partner: UNT Libraries Government Documents Department
open access

Electronic transitions of some pi-molecular charge transfer complexes. [Anthracene--pyromellitic dianhydride (PMDA) or pyrene--PMDA in naphthalene--PMDA host]

Description: A unique phonon progression in the phosphorescence spectrum of pyrene-PMDA (Py-PMDA) in naphthalene-PMDA (N-PMDA) is reported. Calculations of the electron-phonon coupling strength parameter for the ground and excited states indicate strong coupling for the fractional CT contribution of Py-PMDA to the observed phosphorescent state. Model calculations indicate that the observed low frequency phonon mode corresponds to a low energy rotation of the rigid guest complex and not a symmetric donor-acc… more
Date: December 1, 1977
Creator: Beckman, R. L.
Partner: UNT Libraries Government Documents Department
open access

Early English Organ Music: Some Contributions from the Mulliner Book of W. Blitheman, T. Tallis and J. Taverner: Together with Three Recitals of Selected Works of J. S. Bach, D. Buxtehude, M. Duruflé, C. Franck, G. Frescobaldi, J. J. Frogerber, P. Hindemith, O. Messiaen, M. Reger, J. H. Tallis, and C.-M. Widor

Description: The lecture recital was given April 16, 1971. An Excellent Meane, six settings of Gloria Tibi Trinitas, Eterne rerum conditor, and Te Deum laudamus by William Blitheman, In Nomine by John Taverner, and Ecce tempus idonem by Thomas Tallis were performed, together with a choir of four men's voices, following a lecture on various aspects of organ music in early Tudor England. In addition to the lecture recital, three other public recitals, all solo programs, were performed. The first solo recital,… more
Date: December 1977
Creator: Lowry, David Michael
Partner: UNT Libraries
open access

Financial Leverage and the Cost of Capital

Description: The objective of the research reported in this dissertation is to conduct an empirical test of the hypothesis that, excluding income tax effects, the cost of capital to a firm is independent of the degree of financial leverage employed by the firm. This hypothesis, set forth by Franco Modigliani and Merton Miller in 1958, represents a challenge to the traditional view on the subject, a challenge which carries implications of considerable importance in the field of finance. The challenge has led… more
Date: December 1977
Creator: Brust, Melvin F.
Partner: UNT Libraries
open access

An Examination of the Hawthorne Effect in a Verbal Learning Situation in an Educational Setting

Description: This study was an examination of the Hawthorne Effect in a verbal learning situation in an educational setting. The Hawthorne Effect was defined as the facilitating effect(s) produced in experimental situations when the subjects of the experiment expect that they are the objects of special attention. The purpose of the study was to determine if contamination by the Hawthorne Effect existed in an educational setting. Comparisons were made between "experimentally inexperienced" subjects and "expe… more
Date: December 1977
Creator: Simpson, Bert L.
Partner: UNT Libraries
open access

Decision Criteria for Gifts Under the 1976 Tax Reform Act

Description: The 1976 Tax Reform Act made many changes in the taxation of estate and gift transfers. Previously gifts and estates were taxed separately and the gift tax rate was 75 percent of the estate tax rate; and there was a $30,000 exemption for gifts and a $60,000 exemption for estate transfers. Under the new law the exemptions were repealed and replaced with a unified credit against the tax; and the tax on estate and gift transfers was combined into one increasing rate schedule. Under the prior law, … more
Date: December 1977
Creator: Byars, Richard B.
Partner: UNT Libraries
open access

Charles Tomlinson Griffes's Three Preludes (1919) and Sonata for Piano (1918): A Lecture Recital, Together with Three Recitals of Selected Works

Description: The lecture recital was given July 18, 1977. The lecture began with the performance of the Three Preludes and a discussion of these final works in relation to the composer's last period of composition which included the Sonata for Piano. After the biographical foundation was laid, the Sonata for Piano was detailed concerning form and compositional techniques. All works were performed from memory. In addition to the lecture recital, three public recitals were performed. The first solo recital, p… more
Date: December 1977
Creator: Patterson, Donald Lee
Partner: UNT Libraries
open access

The Effects of Physical Exertion on Immediate Classroom Mental Performance of Second-Grade Elementary School Children

Description: The aim of this investigation was to analyze the effects of induced physical exertion on the performance of an immediate mathematical mental ability task among second-grade students. The purpose of the study was to gain information concerning the effects of physical exertion on a mathematical mental task and to evaluate each of four experimental treatment periods (twenty, thirty, forty, and fifty minutes) used to induce physical exertion. Another purpose was to determine whether males or female… more
Date: December 1977
Creator: Gabbard, Carl P.
Partner: UNT Libraries
open access

A Comparison of Two Methods of Teacher Evaluation

Description: This study reports on an investigation of the effects of two methods of teacher evaluation on the attitudes of teachers and principals concerning the method of teacher evaluation in which each subject participated. The data indicate several broad implications. Teachers who were evaluated by the CT method had a significantly more positive feeling that teacher evaluation is more likely to be used for the improvement of instruction than teachers who were evaluated by the ADT method. CT teachers al… more
Date: December 1977
Creator: Cole, Charles C.
Partner: UNT Libraries
open access

A Determination of the Perceived Competencies Needed by Supervisors for the Supervision of Instruction Which Is Conducted by Part-Time Faculty in a Selected Community College District

Description: The problem of this study was to determine the perceived competencies needed by supervisors in order to supervise instruction conducted by part-time instructors in a junior/community college setting. The study was conducted in three phases. The purpose of phase one of the study was to determine the areas of responsibility and tasks which are appropriately delegated to the supervisors of part-time instructors. To accomplish this purpose, areas of responsibility and tasks were drawn from job desc… more
Date: December 1977
Creator: Dixon, Nancy M.
Partner: UNT Libraries
open access

The Effect of Busing on School Success of Minority Students in Urban Elementary Schools

Description: The purposes of this study were (1) to determine whether the mean gains on achievement scores in reading and mathematics for bused students in grades four and five after one year in integrated schools is greater than the mean gain in reading and mathematics achievement scores for similar non-bused students in segregated schools; (2) to determine whether school attendance for bused students is greater than attendance for similar non-bused students; and (3) to determine if attitude toward school,… more
Date: December 1977
Creator: Thomas, Kenneth D., 1939-
Partner: UNT Libraries
open access

Relationship of Female Acceptance or Rejection of Double Sex Standards to Selected Variables

Description: The problem of this study was to determine the relationship of double sex standards to achievement and to selected personality variables of female college students. The following hypotheses were formulated: Hypothesis 1 Women with low acceptance of double sex standards will be found to have a higher grade-point average than will women with high acceptance of double sex standards. Hypothesis 2 Women with low acceptance of double sex standards will have greater internal locus of control than will… more
Date: December 1977
Creator: Williams, Bradley Frank
Partner: UNT Libraries
open access

The Virtuoso Clarinet: Arrangements from Nineteenth-Century Italian Opera, A Lecture Recital, Together with Three Recitals of Selected Works of B. Bartók, J. Brahms, E. Carter, B. Crusell, M. Clyne, C. Debussy, P. Hindemith, R. Schumann, G. Tartini, R. Vaughan Williams, and C. Whittenberg

Description: The lecture recital was given on July 25, 1977. Transcriptions and arrangements for clarinet and piano of nineteenth-century Italian opera were popular during the virtuoso wind era and are representative of an important phase in the history of clarinet playing. Arias of Rossini and Verdi and a fantasia based on Rigoletto were performed during the lecture recital. In addition to the lecture recital, three other public recitals were performed, including solo compositions for clarinet and chamber … more
Date: December 1977
Creator: Petersen, John William
Partner: UNT Libraries
open access

Identifying Competencies for Post-Secondary Mid-Management Instructor-Coordinators by Comparing the Opinions and Perceptions of Selected Administrators and Mid-Management Instructor-Coordinators in Texas

Description: The goal of this survey was to determine if a list of skills, activities, and competencies could be developed to aid in setting uniform guidelines for recruiting and selecting prospective mid-management instructor-coordinators. The data were amassed using a questionnaire which was sent to all mid-management instructor-coordinators and to three administrators at each participating college to ascertain the opinions of those persons closely involved with mid-management. The original mailing plus f… more
Date: December 1977
Creator: Irwin, Peter L.
Partner: UNT Libraries
open access

Insomnia: Effects of Electromyographic Biofeedback, Relaxation Training, and Stimulus Control

Description: Traditional treatment for insomnia has been chemotherapy-- despite short-term value and side effects. Need for an alternative has led to research on behavioral treatment methods for insomnia. Relaxation training has consistently produced effective results, but the limited research on biofeedback and stimulus control suggests that they too may be viable alternate treatment methods. The present research investigated electromyogram (EMG) biofeedback, pseudo-EMG biofeedback, relaxation, training, a… more
Date: December 1977
Creator: Hughes, Ronald C.
Partner: UNT Libraries
open access

An Acoustical Study of Individual Voices in Choral Blend

Description: The purpose of this study was to investigate the phenomenon of choral blend through acoustical analysis of individual vocal sounds. One aspect of the study involved identifying and comparing the acoustical qualities of sounds produced in the usual solo manner and sounds produced by the same singers attempting to blend with a unison ensemble. Another aspect of the study involved identifying and comparing the acoustical qualities of vocal sounds identified as blending well and poorly with a uniso… more
Date: December 1977
Creator: Goodwin, Allen W.
Partner: UNT Libraries
open access

Impeachment as a Political Weapon

Description: This study is concerned with the problem of determining the nature of impeachable offenses through an analysis of the English theory of impeachment, colonial impeachment practice, debates in the constitutional convention and the state ratifying conventions, The Federalist Papers and debates in the first Congress, In addition, the precedents established in American cases of impeachment particularly in the trials of Judge John Pickering, Justice Samuel Chase and President Andrew Johnson are exami… more
Date: December 1977
Creator: Collins, Sally Jean Bumpas
Partner: UNT Libraries
open access

The Kimbell Art Museum Building from Concept to Completion

Description: The problem of this thesis is to determine the evolution of the architectural design of the Kimbell Art Museum building from its origin as a concept to its realization in the completed structure. This study has two objectives.The first is to discover the process by which the physical museum building cam into being. The second is to trace the conceptual evolution of the Kimbell Art Museum building. This problem has three parts, each of which has been made the subject of a chapter. The first, "C… more
Date: December 1977
Creator: Connally, Alice Rebekah
Partner: UNT Libraries
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The Theatrical Director's Application of the Value Systems Analysis to the Characterization of Roles

Description: The purpose of this thesis was to determine if the Value Systems (Tribalistic, Egocentric, Absolutistic, Achievist, Sociocentric, and Individualistic) based on the "Levels of Psychological Existence" developed by Clare W. Graves, could be applied to analysis of a role in a play script. Characters in four scripts were analyzed: The -Rainmaker, by N. Richard Nash; The Lark, by Jean Anouilh, adapted by Lillian Hellman; Fiddler on the Roof, book by Joseph Stein, music by Jerry Bock, lyrics by Sheld… more
Date: December 1977
Creator: Schronk, Janice R.
Partner: UNT Libraries
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