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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
Partner: UNT Libraries
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A Study of the Relationship of Student Participation in the Activities Program to Student Achievement, Attendance and Scores on College Admissions Examinations

Description: This investigation studied the impact of male student involvement in selected school activities upon grade-point averages, rates of attendance and college entrance examination scores. The main purpose of this study was to provide data for state officials, school administrators, and school boards as they seek to make decisions concerning the activities program and its place in the educational system. The specific purpose was to determine if involvement in selected school activities had any relationship to the variables grade-point average, attendance, and scores on college entrance examinations. The study was carried out in four large Texas high schools with a total student population of 6,456. Male participants in seven major school activities were randomly selected. This process produced a total sample of 280 male students representing participation in seven activities in four high schools. Each activity was represented by a sample of forty male students. The conclusions were drawn that (1) there is a positive relationship between participation in the activities program by male students and attendance rate, grade-point average, and scores on the Scholastic Aptitude Test and (2) there was no negative relationship between participation in the activities program and the participants' ability to receive a high school education.
Date: December 1985
Creator: Casey, Arthur Clifford
Partner: UNT Libraries
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Professional Development Needs of Elementary School Principals Implementing Site-Based Management in an Urban School System

Description: The problem of this study was to identify professional development needs of elementary school principals who are implementing site-based management. The purpose was to develop a prioritized list of developmental needs of principals participating in site-based management in the evaluation of teacher performance, instructional knowledge, behavioral life styles, and other needs as identified by a decentralized decision-making questionnaire. The population for this study was the sixty-one elementary school principals in a large urban school district. The principals were encouraged by the central administrative staff to assume the responsibility of site-based managers during the 1981-1982 school year. Three priority areas involving decision making at the school site evolved. These three areas were personnel, instruction, and budgeting. During the three succeeding years, additional areas of decision making have been added, such as building-level staff development, implementation of flexible student schedules, and provisions for specialized summer programs. Findings of the study showed that there was normality in the assessment of teaching skills by principals, that a significant correlation existed between principals' knowledge of instruction and principals' teacher evaluation scores and that a significant correlation existed between principals' teacher evaluation scores, female principals being more consistent. The findings showed that no correlation existed between evaluation scores and training and age, that there was normality of principals' scores in instructional knowledge, and that there was not a relationship between knowledge of instruction and experience or training. It is recommended that staff development be provided to principals on the philosophy of site-based management and on the role of the principal and that this staff development be given for one to two years prior to implementing site-based management. It is recommended that specific training be provided principals in improving their instructional knowledge, understanding of the authority, and an understanding of the responsibilities that accompany site-based management.
Date: August 1985
Creator: Shipp, J. D.
Partner: UNT Libraries
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A Measure of Dependency in Patients with Chronic Illness: Clinical Ecology

Description: This study briefly reviews both historical and recent conceptualizations of dependency. In particular, it focuses on this concept's applicability to patients with chronic illnesses, especially those with allergies. Type and degree of dependency were seen as an important factor in the approach to the medical and psychological treatment of clinical ecology patients. The purpose of the study was to develop an objective measure of dependency which could quickly identify patients whose dependency conflicts interfere with the treatment process. The study was divided into three phases. In the first phase test responses by 84 inpatients to the CAQ, MMPI, and the HAT as well as historical and demographic data were analyzed by a series of stepwise discriminant analysis. The 53 resulting items were examined for those which most concisely discriminated between the two identified groups (pathologically dependent and nonpathologically dependent). These 15 items were used to test 120 additional patients in phase II. Fourteen items were retained and the coefficients obtained classified the patients in phase I and II with a 98.81 percent and 94.17 percent degree of accuracy respectively. These classification coefficients were used to classify another 30 patients in phase III with a 96.67 percent rate of accuracy. These results provide exceptionally strong support for the hypothesis that group classification can be obtained through the use of an objective screening instrument. The pathologically dependent patients tend to focus on disease, frequently are unemployed, have histories of childhood illnesses, have limited emotional controls, are depressed, ambivalent, and distrustful. Additionally, they experience difficulty establishing goals or accepting personal responsibility. Those patients identified as nonpathologically dependent exemplify the more positive aspects of these traits. The pathologically dependent patients appear to be caught in a dilemma between wellness and satisfaction of dependency needs. While all patients need an organized approach to treatment, the …
Date: December 1985
Creator: Jones, Frances McManemin
Partner: UNT Libraries
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An Empirical Study of the Effectiveness of Independence Discrimination Resulting from the Application of Aicpa Ethical Interpretation 101-3--Accounting Services

Description: Interpretation 101-3 of the AICPA Code of Professional Ethics provides four independence requirements for certified public accountants performing bookkeeping services. As such, these requirements are largely thought of as rules requiring compliance. The purpose of this study was to provide empirical evidence related to the question, "Can the guidelines in Interpretation 101-3 be effectively interpreted?" Accordingly, the research objectives were twofold: (1) to make an estimate of the effectiveness of independence discrimination resulting from the use of Interpretation 101-3 , and (2) to identify variables related to differences in CPAs' judgements of impairment and non-impairment of CPA independence in situations covered by Interpretation 101-3. The research methodology for this study was based on a case approach. Twelve situations developed from analysis of Interpretation 101-3 and discussions with practitioners were organized into twenty-four cases in which a CPA firm provided a variety of accounting services. These twenty-four cases were divided into two case sets of twelve cases each and then combined with two cases from a previous study by David Lavin. These cases were submitted to an expert panel for validation as to their relationship to Interpretation 101-3, and a predetermined "correct" judgement was established for use in analysis. A mail survey of the licensees of the Texas State Board of Public Accountancy was used for collecting data. The CPAs were provided with a copy of Interpretation 101-3 and asked to base their judgements exclusively on the standard. Hypothesis testing was used to determine the effectiveness of the independence discrimination resulting from the use of Interpretation 101-3. Statistical models were developed for evaluating differences in the effectiveness of independence discrimination and differences in the CPAs' judgements themselves.
Date: May 1985
Creator: Steed, Steve A. (Steve Alan)
Partner: UNT Libraries
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The Relationships Between College Aptitude, Race, College Hours Completed, and P-PST Scores for Education Students in Texas Public Colleges and Universities

Description: The purpose of this study was to determine the relationships between the scores of students on the Pre-Professional Skills Test (P-PST) and the scores of students on college aptitude tests, the race of students and the number of college hours that students had completed. The subjects who participated in this study were education students who sought admittance to Texas public colleges and universities and took the P-PST in March, 1984. A total of 642 students participated in the study, 512 White or other, 48 Blacks and 82 Hispanics. P-PST scores, race, number of college hours completed, and college aptitude scores were obtained from the student's college or university as a result of the signed release forms each student completed at the March, 1984 testing date.
Date: May 1985
Creator: Griffin, Annette T. (Annette Teer)
Partner: UNT Libraries
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Missa Salve Regina

Description: Missa Salve Regina, a five movement work, is approximately twenty minutes in duration. The work is a setting of the Ordinary of the Mass in Latin with additional text in the vernacular drawn from the writings of Miguel de Unamuno. The composition is scored for four speaking soloists (SATB), mixed chorus (SATB, percussion (player 1: tam tam, three suspended cymbal, bass drum, three tom-toms, glockenspiel, maracas, and marimba), and digital synthesizer optionally on tape. The Missa Salve Regina is concerned with the spiritual implications of the mass and its ritual. The music is composed for both concert presentation and use within the liturgy and deals with the conflict between faith and reason in the human mind, discussed at length, by Unamuno.
Date: May 1985
Creator: Waschka, Rodney, II, 1958-
Partner: UNT Libraries
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In Memoriam H.W. Reese

Description: In Memoriam H. W. Reese is written for chamber orchestra and small mixed chorus, in honor of the composer's father, Hardy W. Reese (March 22, 1926-Nov. 23, 1982). The piece is written in one continuous movement with a total duration of approximately fifteen minutes. Within the work there are three distinct sections, each on texts dealing with a different stage in the process of reconciliation with death.
Date: May 1985
Creator: Reese, Janette E.
Partner: UNT Libraries
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Validation of K-12 Art Specialist Competencies Most Essential for Elementary Classroom Teachers in the State of North Carolina

Description: The problem of this study was to determine which of a list of forty-seven art competencies designed by the North Carolina Department of Public Instruction for K-12 art specialists were most essential for early childhood and intermediate elementary classroom teachers. Four-point Likert-type scaled instruments were designed and sent to three types of North Carolina educators: (a) 200 elementary classroom teachers, stratified into two equal subgroups of early childhood and intermediate teachers; (b) 100 K-12 art specialists; and (c) all art teacher educators employed at colleges and universities with state approved programs in art education. These subjects were asked to respond to the relevance of each competency for the elementary classroom teacher.
Date: May 1985
Creator: Cherry, Timothy Yates
Partner: UNT Libraries
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The Effects of Imaging Ability, Guided Imagery, and Source of Themes on Interview Verbal Behavior

Description: Eighty four female undergraduate students participated in a psychotherapy analog study to determine the effects of imagery ability, guided imagery therapy treatments, and personal versus supplied constructs upon self-disclosure variables in a 2 x 3 x 2 Anova design, with repeated measures on the final factor. Dependent variables were measured by reaction time, total talk time, speech duration, silence quotient, and Doster's (1971) Self-Disclosure Rating Scale. Subjects were divided into two imagery ability levels on the basis of local mean scores on Sheehan's (1967) modification of Betts' (1909) Questionnaire upon Mental Imagery. Three treatment procedures were employed: a guided focal imagery treatment, which encouraged imagery involving the interpersonal topics to be discussed, a guided relaxation imagery treatment which used standard sensory relaxation scenes, and a treatment which imparted ambiguous instructions. The final factor was repeated measures of the eight negative topics the subjects were asked to discuss. Four were chosen from the subjects' Role Construct Repertory Test grid (Kelly, 1955; Landfield, 1971), and four were selected from the Semantic Differential (Snider & Osgood, 1969).
Date: December 1985
Creator: Wixson, Sandra Werre
Partner: UNT Libraries
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Problems Involved in the Academic Advisement Process of Foreign Graduate Students at North Texas State University

Description: The subjects were 69 graduate faculty advisors, 187 foreign graduate students, and 184 American graduate students who were enrolled at North Texas State University in the Spring Semester, 1984. Statistical techniques used for data analysis include frequency distributions, percentages, means, and Mann-Whitney U test. Significant differences were determined by the two-tailed test of significance at or beyond the .05 level.
Date: May 1985
Creator: Khabiri, Mohammad
Partner: UNT Libraries
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Life Stress and Incidence of Pediatric Sickle Cell Anemia Pain Crises

Description: This study investigated the relationship between stress and pain crisis incidence in pediatric Sickle Cell Anemia (SCA). It was hypothesized that SCA children were exposed to higher levels of stress than healthy children. It was also hypothesized that a significant positive correlation existed between level of stress and pain crisis incidence both within and between years. The sample consisted of 20 Black elementary school children with SCA. There were 12 female and 8 male children. The period of investigation included the calendar years 1983 and 1984. Pain crisis incidence was determined through parent interviews and verified by a review of medical records.
Date: December 1985
Creator: Norsworthy, William Ludy, 1948-
Partner: UNT Libraries
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Symphony No. 1 "Concertante"

Description: Symphony No. 1 "Concertante" is a work of approximately twenty-two minutes duration for chamber orchestra. The work is scored for flute (doubling piccolo), oboe (doubling English horn), B-flat clarinet, bassoon, trumpet, F horn, trombone, tuba, percussion, harp, piano (doubling celesta), solo violin, solo viola, solo cello, solo double bass, and strings.The percussion battery, which is to be played by one performer, includes three timpani, vibraphone, orchestra bells, xylophone, chimes, suspended cymbal, bass drum, snare drum, and two triangles. One group of instruments, including the eight winds, percussion, and the four solo strings, is treated primarily in a soloistic manner although it also functions as a part of the ensemble. The remaining group, piano, harp, and strings, functions primarily as an accompanying group although it does get some soloistic treatment. The work is in four movements, each of which uses the traditional symphonic form. Movement I is in sonata-allegro form, movement II a simple ternary "song" form, movement III a scherzo and trio, and the final movement is a theme and variations. These traditional forms apply only to thematic use and development, however, for the tonal scheme is developed in a broader design which unfolds throughout the course of the four movements. All important melodic ideas are based on the same pitch set that serves as the basis for the tonal scheme.
Date: August 1985
Creator: Ring, Gordon L. (Gordon Lee)
Partner: UNT Libraries
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Cognitive Coping Strategies with Chronic Back Pain Patients

Description: Low back pain has long been estimated to be the most prevalent and debilitating source of chronic pain. The present study first reviews the literature addressing the various theories of pain, the physiological and psychological variables important in pain research, and the psychotherapeutic approaches that have been used to date to reduce pain. Thirty-seven hospitalized chronic back pain patients were administered the cold-pressor test and a medical pain stimulus procedure which was medically relevant to their back pathology. A card-sort method was utilized in order to assess the coping strategies employed by the patients during these two pain stimulus tasks. These procedures were repeated following treatment. Coping strategies used by patients during the two pain tasks were compared. Results demonstrated that there was a significant difference in the manner in which patients coped with the two types of pain. Cold-pressor measures of pain threshold and tolerance were not significantly different between pretreatment and post-treatment. These measures were also not positively correlated with treatment outcome. A multiple regression approach demonstrated that particular coping strategies were significantly predictive of treatment outcome. The medical pain stimulus procedure was found to provide more significant pedictor variables than the cold-pressor test. At pre-treatment assessment, patients who relied on dramatized coping strategies were less likely to be successful in treatment. Breathing activity and pain acknowledgement were positive coping techniques highly predictive of successful outcome in this study. The use of computers for assessment and other recommendations for future research were discussed.
Date: December 1985
Creator: Hinnant, Donald Wayne
Partner: UNT Libraries
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Some Responses of Bacillus subtilis Spores to Glutaraldehyde

Description: Bacillus subtilis (ATCC 19659) were damaged by exposure to various concentrations of glutaraldehyde, as shown by decreased germination rates. The damage caused was repaired or otherwise obviated by the presence of sodium lactate in the holding medium. When two different salts of lactic acid were compared for ability to overcome the effect of glutaraldehyde, it was found that calcium salt of lactate was more effective than the sodium salt. The damage repair system involved l-alanine, lactate and either the sodium or calcium ions. The study involved in determining the difference in efficiency of spore repair was due to an organic or an amino acii snowed that the presence of two carboxylic functional groups did not effectively alter the reactivity.
Date: May 1985
Creator: Crum, Morris G. (Morris Glenn)
Partner: UNT Libraries
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Self-Perception of Health: A Proposed Explanatory Model and a Test of its Clinical Significance

Description: A multivariate model of health self-perceptions was postulated based upon a comprehensive set of health related variables suggested by previous bivariate research. Components of the model included measures of health attitudes, health practices, health locus of control, a measure of stress/ coping, and a physical health measure. A stratified random sampling technique was used to select 10 8 subjects based upon the external measure of physical health which included categories ranging from disability-severe to symptom free-high energy level. All subjects completed a health questionnaire comprised of measures of the model components, two measures of health self-perceptions, and the Health Resource Task, an author designed instrument measuring a subject's ability to generate flexible health alternatives/resources. Bivariate correlational analysis revealed that the physical health, stress/coping, health practices, and locus of control measures and certain of the health attitude subscales were significantly correlated to general health self-ratings. A multivariate model including these variables accounted for almost 50 percent of the variance in one of the general health self-ratings measures and approximately 38 percent of the variance in the Health Resource Task. Suggestions for refining the proposed model were made.
Date: December 1985
Creator: Scherzer, Charles E.
Partner: UNT Libraries
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The Economic Effects of the Tax Relief Amendment of 1978 and Subsequent Finance Legislation on the Public School Districts of Texas with an Average Daily Attendance of 500 Pupils or Less

Description: The primary purpose of the study was to determine if the funding and revenue conditions which existed prior to the passage of the Tax Relief Amendment of 1978 continued after the enactment of public school finance legislation by the Sixty-Sixth and Sixty-Seventh Texas Legislatures. Analyses of four research questions were used to accomplish the purpose of the study.
Date: May 1985
Creator: Brewer, David R. (David Ray)
Partner: UNT Libraries
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Degradation of Humic Substances by Aquatic Bacteria

Description: A variety of aquatic bacteria were isolated and tested for their ability to degrade humic substances and their aromatic residues/monomers which serve as precursors of the trihalomethanes (THMs) found in chlorinated drinking waters. The majority of them were Gram-negative, oxidative types dominated by pseudomonads. Most of the 146 isolates were found to utilize as their sole source of carbon several or more of ten aromatic compounds known to be products of degradation of humus and also to be precursors of THMs. The aromatics tested, with percent of the isolates utilizing the compound in parentheses, were: p-hydroxybenzoate (49), vanillic acid (48), 3,5-dihydroxybenzoic acid (16), syringic acid (19), vanillin (30), benzoic acid (27), ferulic acid (34), resorcinol (9), catechol (8) and protocatechuic acid (27).
Date: August 1985
Creator: Baiu, Saleh Hamed Salem
Partner: UNT Libraries
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An Analysis of the Continuing Education-Community Service Programs in the Public Junior-Community Colleges of the State of Texas

Description: The problem with which this study is concerned is the analysis of the status of continuing education-community service programs within the public junior-community colleges of the state of Texas as these programs are viewed (1) from the areas of funding, faculty and facility allocations, (2) from the areas of the educational and professional preparation and responsibility of the leaders who are assigned to direct these programs, and (3) from the area of community involvement in program planning. Based on the problem a survey was developed; 142 administrators responded (61.2 per cent).
Date: May 1985
Creator: Grigsby, Lindle D. (Lindle Dean)
Partner: UNT Libraries
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The Influence of Hypnotic Susceptibility on Depth of Trance Using a Direct Induction and a Metaphorical Induction Technique

Description: To test the hypothesis that a metaphorical technique would be more effective than a direct technique to induce hypnosis, 60 volunteers from students at North Texas State University were divided into high- and low-susceptible subjects by the Harvard Group Scale of Hypnotic Susceptibility. They were randomly assigned to direct and metaphorical induction groups and to a control group, with 10 high- and 10 low-susceptible subjects in each group. After hypnosis they completed the Field Inventory of Hypnotic Depth, and their mean scores were subjected to an analysis of variance and a Newman-Keuls test. Neither method of hypnotic induction was found more effective than the other, although both were effective when compared to a control group. It was also found that subjects who expected to be able to experience hypnosis were no more likely to be hypnotized than those who expected not to be able to experience hypnosis. Finally, it was found that low-susceptible subjects were as likely to respond to a post-hypnotic suggestion as high-susceptible subjects.
Date: August 1985
Creator: Grotts, James B. (James Bruce)
Partner: UNT Libraries
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Menstrual-Related Distress and Willingness Versus Unwillingness to Seek Treatment

Description: The purpose of this study was to delineate variables which relate to reported willingness to seek treatment for menstrual-related distress, and to assess treatment preferences in a population of women often tapped for menstrual research that of college students. Of the 198 volunteers included in the study, 71 stated that they were willing to seek some form of treatment for menstrual-related distress, and 127 stated that they were not willing to do so. The Adjective Checklist (ACL), Menstrual Attitude Questionnaire (MAQ), and Menstrual Distress Questionnaire (MDQ), along with a personal data sheet were administered to subjects. In addition, they were asked to read three paragraph-long descriptions of self-administered, medical, and behavioral treatments for menstrual-related distress and to indicate their preference for each.
Date: May 1985
Creator: Markum, Rosemary Wilson
Partner: UNT Libraries
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Early Identification of Dropout-Prone Students and Early Intervention Strategies to Improve Student Retention at a Private University

Description: The problem of this study was first year student retention at a private university. The purpose of the study was to identify high risk students (dropout prone) by use of the Stratil Counseling Inventory -_ College Form (SCI-C) in order to initiate early intervention counseling and advising. Intrusive counseling was started within the first six weeks of the 1984 fall semester to facilitate the students' transition to college. The population of the study was first-time full-time freshmen students in attendance at Freshmen Orientation the week prior to the beginning of the 1984 academic year. SCI-C instrument consisted of six scales designed to elicit attrition-related information about the firsttime, freshmen students. The scales identified students who were in need of assistance, and they provided a profile of their problem areas. This information, available within ten days after the beginning of classes enabled Student Development personnel to select the students out of the freshman class who needed help and to refer them to university resources for assistance. The conclusions drawn from the analysis of the SCI-C data were: (1) students who needed assistance to integrate into the academic and social envrionment of the university were identified by the SCI-C; (2) students at Hardin-Simmons University value adult/student relationship outside of the classroom; (3) attitudes of caring service creates a "staying environment;1* (4) although the SCI-C indicates students' interests in support services, not all students who request assistance, avail themselves of the opportunities provided for them; (5) a relationship seems to exist between the intervention strategies provided particular freshmen and their succesful performance in the classroom (CPA of 1.60 or greater) and their persistence at the university for their second year; (6) the SCI-C provides attrition-related counseling information about students rather than predicting college academic success; and (7) the SCI-C i s a valid …
Date: December 1985
Creator: Bray, Carolyn Scott
Partner: UNT Libraries
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Major Spelling Deficiencies Among Collegiate Business Students

Description: The problem of this study was an analysis of major spelling deficiencies among collegiate business students. The purposes were as follows: (1) to develop a diagnostic instrument that will measure spelling deficiencies; and (2) to make recommendations regarding the preparation of materials that will assist students in overcoming these deficiencies. Written assignments prepared by collegiate Business Communication students were examined for spelling errors. Errors were then classified into the following categories: (1) words with "ie" and "ei" ; (2) final "e"; (3) final consonant rule; (4) final "y"; (5) confusion over vowel sounds; (6) pronunciation problems; (7) sound-alikes; (8) plurals; (9) apostrophes; (10) omissions; (11) additions and repetitions; (12) substitutions; (13) demons; and (14) miscellaneous. Percentages of total errors served as a guideline for preparation of a Table of Specifications, and a Spelling Diagnostic Test was developed. Validity of the instrument was determined by a panel of experts. The test was then administered to 214 collegiate business students, and a reliability coefficient of .83 was determined using the split-half method.
Date: August 1985
Creator: Benson, Melba W.
Partner: UNT Libraries
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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
Partner: UNT Libraries
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