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Field investigation of keyblock stability

Description: Discontinuities in a rock mass can intersect an excavation surface to form discrete blocks (keyblocks) which can be unstable. This engineering problem is divided into two parts: block identification, and evaluation of block stability. One stable keyblock and thirteen fallen keyblocks were observed in field investigations at the Nevada Test Site. Nine blocks were measured in detail sufficient to allow back-analysis of their stability. Measurements included block geometry, and discontinuity roughness and compressive strength. Back-analysis correctly predicted stability or failure in all but two cases. These two exceptions involved situations that violated the stress assumptions of the stability calculations. Keyblock faces correlated well with known joint set orientations. The effect of tunnel orientation on keyblock frequency was apparent. Back-analysis of physical models successfully predicted block pullout force for two-dimensional models of unit thickness. Two-dimensional (2D) and three-dimensional (3D) analytic models for the stability of simple pyramidal keyblocks were examined. Calculated stability is greater for 3D analyses than for 2D analyses. Calculated keyblock stability increases with larger in situ stress magnitudes, larger lateral stress ratios, and larger shear strengths. Discontinuity stiffness controls block displacement more strongly than it does stability itself. Large keyblocks are less stable than small ones, and stability increases as blocks become more slender. Rock mass temperature decreases reduce the confining stress magnitudes and can lead to failure. The pattern of stresses affecting each block face explains conceptually the occurrence of pyramidal keyblocks that are truncated near their apex.
Date: April 1, 1985
Creator: Yow, J.L. Jr.
Partner: UNT Libraries Government Documents Department

A Comparative Content Analysis of the Editorial Positions of the Christian Century and Christianity Today on Selected Social and Moral Issues

Description: This study compared the editorial positions of two magazines, The Christian Century and Christianity Today, on seven social and moral issues, then compared each magazine's positions with the opinions of their intended audiences. A directional content analysis was conducted that determined the editorial positions. On all four issues for which comparison was possible, the magazines demonstrated a marked difference in direction. These positions were compared with the published opinions of those social groups identified as representative of each magazine's intended audience. There was marked disagreement between each magazine and its intended audience on three of the five issues for which comparison was possible.
Date: December 1985
Creator: Warner, Gregory Dann
Partner: UNT Libraries

Metaphor and the ESL Classroom

Description: This paper concentrates on the viability of using metaphor as a teaching tool in the English as a Second Language classroom. In doing so, a semantically-based theory of metaphor, like that presented by Lakoff and Johnson (1980), is employed as a base for the examination. Such a theory of metaphor presents a dramatic shift from theories, especially Aristotle's, of the past. The theory of metaphor proposed by Lakoff and Johnson contends that language is essentially metaphorical and that much of our 'commonsense' knowledge about the world is derived from interpretations of reality and is manifested in metaphors central to a culture and its language. If this theory is true, then it stands to reason that a student attempting to learn English as a Second Language could profit greatly from metaphor instruction because such instruction would aid all areas of the language acquisition process.
Date: August 1985
Creator: Bishop, Ryan M. (Ryan Marion)
Partner: UNT Libraries

Voice Onset Time Characteristics of Selected Phonemes in Young and Old Male Speakers

Description: The purpose of the investigation was to compare mean voice onset time in young and old male subjects, as well as to examine variability of VOT productions with age for prevocalic bilabial, alveolar, and velar voiced and voiceless stop consonants. Forty-five Caucasion.males were divided equally into three.age groups. Ten tokens of six stimulus words were recorded and wide band spectrograms were made. Results of an analysis of variance revealed no significant differences in VOT with age when averages of the phonemes were used for analysis; however, a significant interaction between age and voiced phonemes was found when individual trials of phoneme productions were used for analysis.
Date: December 1985
Creator: Thomas, Kathy Wright
Partner: UNT Libraries

Caddo Blues: The Making Of A Stunt

Description: Stuntwork became a science when stuntman and technician Yakima Canutt left the rodeo to work in Hollywood westerns. Canutt perfected methods and designed mechanisms that made dangerous stunts safer and visually exciting. Many of Canutt's techniques are still used today by modern stuntmen like Hal Needham, Ronnie Rondell, and Paul Baxley. Directed by stuntman Hal Needham and starring "box office draw" Burt Reynolds, Hooper presented the stuntman as a rugged, fun-loving, almost suicidal superman. For the first time in film's short history, the stuntman and his craft became a topic of wide public interest. The stuntman had become "glamorous" almost rivaling his actor counterpart.
Date: December 1985
Creator: Moore, Stan (Stan Clark)
Partner: UNT Libraries

Anton Bruckner's Treatment of the Credo Text in His Last Three Masses

Description: In order to investigate the stylistic transformation that occured before Bruckner abandoned the composition of Masses, this paper analyzes the Credo settings in his last three great Masses, with special attention to the treatment of the text. The relationship between the text and specific musical techniques is also considered. The trends found in these three works, especially in the last setting in F minor, confirm the assumption that Bruckner's Mass composition served as a transition to the composition of his symphonies.
Date: December 1985
Creator: Lee, Namjai
Partner: UNT Libraries

A Content Analysis of Violence in Music Videos

Description: This content analysis study of music videos answered questions concerning the amount and severity of violence content during different time periods of the day. A system of classifying violence content as nonviolent, mostly light, neither light nor serious, mostly serious, and extremely serious was used to evaluate music videos from MTV. One hour from each day was randomly selected for evaluation for a period of thirty days. During this time, there were 313 occurrences of music videos which were aired and subsequently evaluated. The results indicated the majority of these music videos contained mostly light or no violence content. This study also revealed that the most likely time of day a viewer would see videos with violence would be from midnight until eight in the morning.
Date: August 1985
Creator: Paxton, Sue
Partner: UNT Libraries

The Relationship Between Pace Characteristics of Distance Runs and Criterion Measures of Endurance

Description: The purpose of the study was to examine the relationship between treadmill time, maximal oxygen consumption and pace characteristics of the 1.5 and 3 mile runs and to compare the distances and pace characteristics as predictors of aerobic capacity. Subjects were 70 college aged males, ages 18 to 25, enrolled in jogging and conditioning classes at North Texas State University. Three tests were administered: the 1.5 mile run, the 3 mile run and the Bruce treadmill test. The data were analyzed using correlations and factor analysis. Conclusions of the investigation were (1) the 1.5 and 3 mile runs are valid measures of aerobic capacity, (2) the 3 mile run does not significantly increase the correlation between VO2max and endurance runs and (3) pacing characteristics are evident in the 1.5 and 3 mile runs.
Date: December 1985
Creator: Sanchez, Robert J.
Partner: UNT Libraries

The Impact of the 1967 War on the Jordanian Economic Development

Description: This thesis is an analysis of the Jordanian economic developmental process which demonstrates that it expanded rapidly between 1948 and 1970. During the period under study, Jordan had to face two wars, in 1948 and 1967, which had inverse effects on the economy. After each war, the economy experienced a period of recovery due primarily to government efforts to promote investment; the existence of a more educated people represented by the refugees; and the role of foreign aid. Chapter I is a brief introduction to the Jordanian economy. Chapter II is a discussion of some theories of economic development. Chapters III and IV provide us with a more detailed description of the economic situation before and after the 1967 war. However, the purpose of Chapter V is to incorporate the theory that appears to handle the processes discussed in both Chapters III and IV.
Date: December 1985
Creator: Zoubi, Marwan M. Sharif (Marwan Mohd Sharif)
Partner: UNT Libraries

Ancient Light

Description: A collection of poetry.
Date: December 1985
Creator: Hill, Jay Scott
Partner: UNT Libraries

Holland's Self-Directed Search: A Measure of Interests of Abilities?

Description: This study examined the relationship between the sub-components of Holland's Self-Directed Search and independent, objective measures of ability using a comprehensive battery of well-validated tests of primary abilities corresponding to each of Holland's six vocational interest types. The sample consisted of 149 female undergraduate students, ages 18-25. Correlation of the ability measure test scores with the four Self-Directed Search subcomponents revealed that the subtests were not related to corresponding measures of ability in a consistent fashion. Implications for the use of the Self-Directed Search in assessing abilities are discussed along with suggestions for future research investigating the relationhip between interest in ventories and the measurement of primary abilities.
Date: December 1985
Creator: Williams, Richard Earl
Partner: UNT Libraries

A Comparative Analysis of Three Forms of Evaluating Management Training Programs

Description: The practice of training evaluation has not kept pace with prescription, and evaluations being being done are frequently negligent of appropriate controls needed to draw valid conclusions. A comparison was made of training outcomes contrasting results obtained using carefully controlled scientific approaches with those from a more popular less scientific approach. The research design involved the collection and analysis of data from a single organizations managerial training program. , Three different methods of training evaluation were studied: an "immediate reaction" rating sheet, a self-report participant survey, and a similar survey completed by t he participants' subordinates. Bo th surv ey r e sul t s showed no signif icant c hang es in on-the-job behavior six weeks after training. In contrast the "immediate reaction" ratings were positive, implying the training program was a "success." Conclusions w ere drawn concerning the validity of methods compared.
Date: December 1985
Creator: Hale, John P.
Partner: UNT Libraries

The Interrelationships of Strength, Speed, Power and Anthropometric Measures in College Aged Women

Description: The purpose of the investigation was to determine the interrelationships of strength, speed, power and anthropometric measures in women. Sixty females ranging in ages from 18 to 25 volunteered as subjects. Subjects were measured for strength on the bench press, leg extension and leg curl, power vertical jump, speed--a 40 yard dash, body weight (BW) and fat weight (FW) using a scale and skinfold tests. The correlations for strength and power (.35 to .53), strength and speed (-.37 to -.56) and speed and power (-.45) were significant (p < .01). Partial correlations with (BW) and (FW) held constant were also significant, but were not significantly greater than their zero-order correlations.
Date: December 1985
Creator: Hinojosa, Richard
Partner: UNT Libraries

Psalm 23

Description: Psalm 23 is a sacred work in four movements, written for women's chorus (SSAA), a tenor solo and a chamber ensemble consisting of flute, oboe, trumpet, percussion, timpani, and string quartet. It is designed to be performed as a portion of a church service or in concert. The text, Psalm 23 from the Bible is sung in Chinese, and the verses of the Psalm are arranged as follows: Movement 1, Verse 1, General musical characteristics: pastoral; Movement 2, Verses 2-3, General musical characteristics: peaceful; Movement 3, Verses 4-5, General musical characteristics: agitated; Movement 4, Verse 6, General musical characteristics: majestic. The form, tonal structure and harmony of each movement are influenced by the characteristics of an original synthetic scale.
Date: December 1985
Creator: Man, Stanlas Ping Kwan
Partner: UNT Libraries

A Study of the Changes Over Time in State Anxiety in a Computer-Assisted Instructional Program

Description: The purposes of this study were to analyze (1) the changes over time in the state anxiety level of children in a computer-assisted program of reading instruction and in classroom reading instruction, (2) the changes in state anxiety patterns as related to gender, achievement level, and ethnicity, and (3) the difference in anxiety levels of the students while in computer-assisted reading instruction and classroom reading instruction.
Date: December 1985
Creator: Spence, M. Janet (Martha Janet)
Partner: UNT Libraries

The Impact of Strategic Management on Organizational Effectiveness in Jesuit Colleges and Universities

Description: The organizational effectiveness and strategic management areas of organizational theory are the general focus of this study. Organizational effectiveness is defined as the extent to which an organization by the use of certain resources fulfills its objectives without depleting its resources and without placing undue strain upon its members and/or society. Strategic management is defined as an array of processes which leads to the development of an effective approach to achieve the organization's objectives. Little agreement appears to exist on how to evaluate organizational effectiveness and to what extent strategic management impacts organizational effectiveness. This is the problem this study addressed. This study presents an extensive review of the literature, formulates some syntheses and utilizes a questionnaire to gather pertinent data. The sample of respondents consisted of a group of key administrators from all the Jesuit colleges and universities in the United States. The questionnaire had a ninety percent response rate. This study was primarily a correlation study which emphasized the perceptions of the respondents regarding the elements and/or processes of strategic management and the concepts of organizational effectiveness. The Chi-Square and Spearman rank order tests were utilized for statistical measures. The analysis of data revealed any significant relationships between (1) the elements and/or processes of strategic management and (2) the concepts related to organizational effectiveness.
Date: December 1985
Creator: Favilla, Edward S.
Partner: UNT Libraries

Effects of a Psychotherapy Presentation on Asians' Therapy Expectations and Help-Seeking Attitudes

Description: The effectiveness of an educational psychotherapy presentation on Asians' therapy expectations and help-seeking attitudes was investigated. Subjects were foreign-born Asian university students. Compared to a non-Asian American normative sample, the Asian group demonstrated significantly less accurate expectations about therapy and less positive attitudes about seeking help for psychological problems. A psychotherapy presentation was used to modify expectations and attitudes. It consisted of an audiotaped lecture on therapist and client roles and the types of problems discussed in therapy. It also included a written transcript of therapist-client dialogues for subjects to read. The experimental group, which received the presentation, was compared to placebo control and delayed-treatment control groups. The psychotherapy presentation did not modify Asians' expectations or attitudes more than the control groups. Instead, all three groups showed improvement at posttest. Because there is a clear need to assess further the therapy expectations and attitudes of Asians, future research was recommended.
Date: December 1985
Creator: Plotkin, Rosette Curcuruto
Partner: UNT Libraries

The Impact of a Part 48 Training Program on the Health and Safety Knowledge Level of Newly Employed Inexperienced Miners

Description: The impact of a mandatory Part 48 training program on the health and safety knowledge level of newly employed inexperienced miners in Texas was studied. Part 48 training was defined by compliance with Mine Safety and Health Administration's (MSHA) mandatory health and safety training requirements. A two-group pretest, posttest research design was utilized. Group one individuals were newly employed inexperienced persons who received mandatory Part 48 training in accordance with MSHA guidelines. Group two subjects were newly employed inexperienced persons who worked for companies that were exempt from conducting a Part 48 training program. MSHA's health and safety knowledge inventory was utilized. A significant difference was found in the health and safety training program when compared with individuals who did not receive the training . A significant difference was also found in the posttest scores for eight of the ten subject areas of the MSHA health and safety knowledge inventory for persons who completed a Part 48 training program when compared to persons who did not receive the training . Analysis of gain scores resulted in significant differences in the same subject areas indicated by posttest scores. It was concluded that MSHA Part 48 did have a significant impact on the health and safety knowledge level of newly employed inexperienced miners. Additional implications noted relate to the impact of a Part 48 training program on accidents, productivity, absenteeism, turnover, job satisfaction and management styles; role of MSHA in miner training; development of new training materials; methods of training; and the evaluation of health and safety training programs.
Date: December 1985
Creator: Revel, Layton
Partner: UNT Libraries

The Student Service Related Problems of International and English as a Second Language Students in a Selected Community College

Description: The study focused on the student service related problems of culturally distinct groups of students attending a community college. The groups selected for the study were sixty international students and sixty English as a Second Language students. The researcher administered the Michigan International Student Problem Inventory, an instrument which has been widely used to indicate foreign students' problems. Combining the use of naturalistic research methodology, the researcher utilized an indepth interview to document the problems they were facing. Patterns and trends among the problems were analyzed and reported. The results indicated that many international students experienced concerns in the area of financial aid, had difficulties with some of the immigration regulations and work restrictions, and experienced forms of racial and social discrimination. The English as a Second Language students tended to experience most difficulties in the area of English language functioning but also experienced problems related to academic functioning and making friends. The student service areas most closely related to the international students' concerns were Financial Aids, Admissions, Placement, Counseling, and English Language Services. English as a Second Language students' problems were most closely related to the areas of English Language Services, Admissions, Counseling, and Academic Advisement. Recommendations generated by the study include the development of a new instrument to include topics generated by the students in the open-ended section of the questionnaire, a translation of the instrument into the major languages of the English as a Second Language population, and the need for future research on subgroups of the populations who indicated a greater number of problems than the others. Institutional recommendations are included which focus on how the college could address the problems which the students identified.
Date: December 1985
Creator: Paez, Georgia Somerville
Partner: UNT Libraries

Impacts of Personality Type and Computer System Response Time on Anxiety and User Response Time

Description: The purpose of this research was to determine if personality type and system response time have any effect on state anxiety and user response time. The sample for this study consisted of senior and graduate level college students who possessed basic know 1 edge of a text editor. Each test subject was administered the Jenkins Activity Survey to determine scores for Type A versus Type B, speed and impatience, involvement, and competitiveness. The test subjects were randomly assigned to one of three treatment groups (good, variable, and poor system response time). They were required to edit a text file which contained multiple errors. The test subjects were provided hard copies of the file with errors (errors highlighted) and the file as should appear without the errors. The test situation for each test subject was identical, except for changes in system response time. The A-state scale of the State-Trait Anxiety Inventory (STAI) was administered to the test subjects immediately prior to the edit task in order to determine pre-task state anxiety levels. The A-state scale of the STAI was again administered immediately after the edit task in order to determine post-task state anxiety levels. Analysis of variance, analysis of covariance, regression, and two sample t-tests were used to analyze the data collected. All hypotheses were tested at the alpha .05 level. The most significant finding of this study was the positive relationship between state anxiety and system response time. It was originally predicted that the Type A personality would experience a greater increase in state anxiety than the Type B personality. However, that was not found to be true. Both Type A and Type B individuals experience an increase in state anxiety during periods of poor or variable system response time. This study also confirms prior research regarding user and system ...
Date: December 1985
Creator: Guynes, Jan L. (Jan Lucille)
Partner: UNT Libraries

A Content Analysis of Public Broadcasting Service Television Programming

Description: The problem with which this investigation is concerned is the description of the social map that is presented to the viewers of public television. Using content analysis methodology, the study describes how different genders, racial groups, and age groups are being portrayed on PBS programming. The sample consisted of one week of PBS 1984 fall programming broadcast on KERA-TV, the PBS station in Dallas-Ft. Worth, Texas. Research questions addressing proportions of groups, types of roles, length of scenes, occupational variation, conversational behaviors, conflict management modes, and cultural norms were answered. All coding was accomplished by the principal investigator. Upon completion of the coding sub-totals for the variables under study by program types and a grand total for the entire sample were then tabulated. After this extensive content analysis, the report concludes that females are still extremely underrepresented in PBS programming, accounting for only 32.7% of the total participants. Blacks and Hispanics are also underrepresented except in children's programming. Occupational variation for white males is evident for all types of PBS programming. Occupational variation for white females is evident in children's programming and informational/documentary programming. Minorities with delineated occupations are extremely limited in all types of programming except for children's programming. The exchange of information is the major conversational behavior that occurs on PBS programming with minority characters receiving orders considerably more than their white counterparts. Verbal aggression is the conflict management mode chosen most frequently on PBS programming. Explicit messages regarding racial and sexual equality and prosocial behavior occur on PBS programming. Implicit messages such as frequency of appearances, number of major roles, and prevalence of power cues suggest a white male domination of television programming on PBS. The findings of the study reveal that major inroads have been made by women and minorities in children's programming. This comprehensive analysis ...
Date: December 1985
Creator: Harper, Sandra S.
Partner: UNT Libraries

The Effect on Learning of Geographic Instruction Designed for Students' Verbal and Spatial Abilities

Description: The purpose of this study was to compare student scores on geographic skills in the experimental group with student scores on geographic skills in the control group after adjustment was made in teaching methods and learning materials for verbal and spatial ability for students in the experimental group. Hypotheses tested at the .05 level were as follows. 1. Females would score higher than males on a criterion measure of verbal ability. 2. Males would score higher than females on a criterion measure of spatial ability. 3. Experimental/verbal students would score higher on a geography skills posttest. 4. Experimental/spatial students would score higher on a geography skills posttest. 5. The experimental group would score higher than the control group on a geography skills posttest. The sample was 150 high school United States History students in a medium-sized North Texas school district. Analysis of covariance was used to analyze results of the study of six classes after fifteen days of instruction in physical geography concepts. Experimental classes received geographic instruction directed to verbal and spatial abilities; control group classes received traditional geographic instruction which utilized textbook, lecture, and whole-group instruction. Three high schools participated in the study. Conclusions were that males and females did not differ significantly on verbal and spatial abilities. Values between pretest and posttest for both experimental and control groups were significant, but when adjusted for the covariates of verbal and spatial ability, control/verbal learners' posttest scores were significantly higher than experimental/verbal learners' posttest scores. Spatial/ experimental learners' posttest scores and spatial/control learners' posttest scores were compared, and the result was no significant difference when cell means were adjusted for the higher spatial/experimental learners' spatial ability. The practice of teaching geography through the use of textbook and whole-group instruction resulted in larger learning gains than the practice of using ...
Date: December 1985
Creator: Flatt, Crystal Adonna Lee
Partner: UNT Libraries

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

The Prediction of Industrial Bond Rating Changes: a Multiple Discriminant Model Versus a Statistical Decomposition Model

Description: The purpose of this study is to investigate the usefulness of statistical decomposition measures in the prediction of industrial bond rating changes. Further, the predictive ability of decomposition measures is compared with multiple discriminant analysis on the same sample. The problem of this study is twofold. It stems in general from the statistical problems associated with current techniques employed in the study of bond ratings and in particular from the lack of attention to the study of bond rating changes. Two main hypotheses are tested in this study. The first is that bond rating changes can be predicted through the use of financial statement data. The second is that decomposition analysis can achieve the same performance as multiple discriminant analysis in duplicating and predicting industrial bond rating changes. To explain and predict industrial bond rating changes, statistical decomposition measures were computed for each company in the sample. Based on these decomposition measures, the two types of analyses performed were (a) a univariate analysis where each decomposition measure was compared with an industry average decomposition measure, and (b) a multivariate analysis where decomposition measures were used as independent variables in a probability linear model. In addition to statistical decomposition analysis, multiple discriminant analysis was used in duplicating and predicting bond rating changes. Finally, a comparison was made between the predictive abilities of decomposition analysis and discriminant analysis.
Date: December 1985
Creator: Metawe, Saad Abdel-Hamid
Partner: UNT Libraries