This investigation is concerned with demonstrating the effects of an easily managed classroom contingency-management treatment package on increasing arithmetic performance while decreasing disruptive behavior for whole classes of students. The study proposed, among other things, that programs differ in the degree to which each student must depend upon other students for reinforcement

As a painter, I have been working the past few years to develop a mature pictoral image and the concepts of space that were flexible enough for me to produce what I believed was a valid art statement. I have investigated several avenues for improving my work, i.e., acquiring certain technical painting skills, reading more to broaden my concepts and imagination, and visiting various art galleries and museums. During an earlier critique it was realized that the majority of my paintings were all very similar in scale. I decided to approach my work on a much larger scale than previously attempted in the hopes of discovering a better, or at least different painting concept.

This composition is a concerto in two movements and has a total duration of approximately twenty-two minutes. The First Movement is prefaced by an Introduction, while the Second Movement is concluded with an Epilogue. The bass trombone functions in speeding up the tempo when it is featured in solo capacity. The horn, however, functions in slowing down the tempo when featured as a solo instrument. The speeding up and slowing down processes follow the principles of metric modulation.

Triabolous is a three movement composition for trombone, woodwind quintet, and one percussionist. The three movements Agitato, Andante, and Allegro, are of equal length resulting in a total performance time of 15 minutes. The piece is primarily a trombone solo; however, the trombone does not function as a solo throughout the total composition. There are portions of every movement where the trombone is silent or added to the quintet as an auxiliary wind instrument.

Synphony Number Two is a composition in four movements for symphonic band requiring approximately nineteen minutes for performance. An unusual feature of this symphony is the vertical juxtaposition of movements two and three. Movement three begins thirty seconds after the beginning of the second movement, and the two movements finish together. Each uses different sections of the band, and two conductors are required.

The first movement is an introductory movement introducing thematic material used in the entire piece. The second movement contrasts the first by incorporating real time throughout the majority of the movement. The third movement is a composite or summary of material presented in the previous two movements.

There were no restrictions as to style or technique, and since my previous works had been realistic, this direction was to be continued during the entire investigation. The primary objective was to create a series of drawings and paintings which would concentrate on the basic facial topography and idiosyncrasies of a constant model with variations in color, scale, medium, and expression.

This investigation focused on an empirical evaluation of the efficacy of preventative systematic desensitization, a recently developed psychotherapeutic technique intended to preclude the formation of a phobic or adverse autonomic reaction. While earlier research suggested the therapeutic viability of this technique, various methodological difficulties inherent in the experimental designs negated any clear an unequivocal statements regarding therapeutic efficacy. The design of the experiment central to this dissertation was developed expressly to avoid the methodological problems which characterized prior research, expand upon the hypothesis of earlier investigators, and evaluate the effectiveness of prophylactic desensitization. The following results were obtained: (a) the experimental group did not show an increase in fear on the dependent measures following conditioning, (b) the placebo control group did show a significant increase in fear on the dependent measures following conditioning, (c) the group that received traditional systematic desensitization showed a significant fear increase after conditioning which was reduced to baseline following systematic desensitization, and (d) the measurements control group confirmed the above result and showed no significant differences in fear at retests. The major conclusion of this experiment is that within the context of the laboratory, it would appear that preventive systematic desensitization is an efficient psychotherapeutic …

The problem of this study was the analysis of the pectoralis major during six antigravity exercises using electromyographc techniques. Thirty male subjects were used for the investigation from physical education classes at North Texas State University during the spring of 1976.

A study was made of the effects of diphenylhydantoin (DPH) and the carrier solution on the spleen, lymph node, and thymus. DPH was injected i.p. at concentrations of 5 and 10 mg./100 gm. for 30 and 60 days. Hematologic effects observed were leucocytosis, neutrophilia, eosinophilia, and lymphopenia. Respiratory measurements of lymph node tissue slices were made using the oxygen electrode method. The carrier solution was found to cause a marked increase in oxygen consumption. A DPH effect on lymph tissue respiration was not observed. The carrier alone caused an atrophy of the lymph nodes and thymus, as well as an increase in the total body weight. Histological examination revealed that the 5 mg./100 gm. DPH injected for 60 days and the 10 mg./100 gm. DPH injected for 30 or 60 days produced a histiocytic cell type lymphoma, resembling Hodgkin's disease in the lymph node, thymus, and spleen in rats. The data indicated that DPH may not be a direct carcinogen, but it may interfere with the normal immune mechanism to produce the changes observed.

Azotobacter and various fungi were grown together in nitrogen-free media. Maximal fungal growth in the medium used was possible only at the expense of Azotobacter cells and growth was always accompanied by acid production. When the medium reached a pH of 2, the bacterial cells were aggregated on fungal hyphae and the culture fluid appeared to be free of Azotobacter. Aspergillus niger grew well at the expense of viable bacteria and other fungi grew well on heat-killed cells of A. vinelandii. Members of the genus Hormodendrum, although not causing significant decrease in pH, were also able to clear turbid cultures of Azotobacter. However, clearing, which involved the attachment of bacteria to fungal hyphae, was dependent on acid production by the fungi. Bacterial aggregation was followed by hyphal attachment, bacterial inactivation, and finally, bacterial cell lysis.

The purpose of this investigation was to develop a method of burning out expanded plastic patterns invested in ceramic shell molds. Technological information suggested that the procedure was not feasible because plastic expansion or gas combustion invariably spoiled the mold. However, burning out expanded plastic patterns would provide a practical method of using such materials in the sculptor's studio; combined with ceramic shells, the patterns would promote accurately detailed castings with ease and convenience.

The purpose of this paper is to compare a group of adolescents with the learning disorder of dyslexia and a group of adolescents without dyslexia in regard to their ability to make realistic drawings. Subjects selected for the study were from a suburban junior high school in which a random sample was taken of both dyslexic and non-dyslexic students. Each was given three standardized drawing tasks, including a still-life drawing, a contour drawing, and a perspective drawing. The drawings were judged by five evaluators on a continuum of realistic to non-realistic. The ratings were then analyzed by the application of the Mann-Whitney U-Test, which indicated that there are no significant differences in the abilities of the two groups to render drawings realistically.

Data on the life cycle of Hydropezrla crosbvi were collected from January, 1974, to March, 1976, in Clear Creek, Denton County, Texas. Laboratory investigation helped in establishing instar number, egg incubation and description, and first instar descriptions. Adult Hydroperla crosbyi emerge in February - March when water temperature increases to a mean of 15 C. Eggs undergo a diapause, hatching when decreasing water temperature reaches 18 C in October - November. Maximum growth occurs when water temperatures are coldest. Male and female nymphs undergo ca. 12 and 14 instars, respectively. Larvae of Simuliidae and Chironomidae are the preferred food items of nymphs throughout the growth season.

The peptidoglycan layer of Vitreoscilla stercoraria, ATCC 15218, was isolated from intact cells after treatment with sodium lauryl sulfate (SLS) and digestion with Pronase. Amino acid and amino sugar content was analyzed and 67% of the total present was made up of glutamic acid, alanine, diaminopimelic acid (DAP), and glucosamine in a molar ratio of 1:1.7:1:0.7. Electron microscopy of the final peptidoglycan product showed a thin, delicately folded sacculus which exhibited a morphology different from that of the intact vegetative cells. Within these sacculi occurred electron-dense structures which were assayed and found to be poly- 3-hydroxybutyrate (PHB) granules. The final yield of peptidoglycan was 2.9% of the dry weight of the intact vegetative cell.

In this investigation, the age and racial characteristics of older inner-city neighborhoods within seven Texas cities are examined. More specifically, a general thesis is developed which suggests that residentially integrated neighborhoods near the core of the city contain a relatively older white population and younger black residents.

The purpose of this study was to analyze, evaluate, expand, and implement instructional procedures designed in order to increase visual perceptual differentiation. The literature revealed visual perceptual differentiation to be pervasive and stable across situational variables.

This study investigated whether a salicylate-restricted diet (eliminating foods containing artificial additives and natural salicylates) could effectively reduce hyperactivity in children more so than a diet not restricting salicylates (ostensibly restricting foods containing refined sugar). Ten hyperactive children, nine boys and one girl, were matched on their pre-treatment activity rates and assigned to either a salicylate-restricted diet (Group I) or a diet not restricting salicylates (Group II). After approximately nine weeks, post-treatment activity rates were obtained, and a significant difference in favor of the salicylate-restricted diet group was found with this diet group exhibiting a significantly lower mean post-treatment activity rate in comparison to the group placed on a diet not restricting salicylates (p<.05). Implications for diagnosis and treatment of hyperactivity in children were discussed.

The study determines and evaluates changes in the 10:00 p.m. newscasts of the Dallas-Fort Worth network affiliates following personnel and ownership changes, and a reduction in length of one station's newscast. Scripts and audio recordings of the newscasts were collected during four-week periods before and after the changes. The data were analyzed and supplemented with interviews conducted with the stations' news directors and producers. Conclusions drawn were that ownership changes had more impact on the presentation of the news than on its content, changes in anchormen and producers had more effect on presentation than on content, and a reduction in news time caused changes in the content of a television newscast.

During the Elizabethan period, certain stereotypes existed concerning women. Seven tragedies were examined to discover the role played by those stereotypes in the dramas. These include "The Spanish Tragedy," "Edward II," "Bussy D'Ambois," "The Changeling," "A Woman Killed with Kindness," "Othello," and "The Duchess of Malfi." Female stereotyping was found to be used in three important ways: in characterization, in motivation, and as a substitute for motivation. Some of the plays rely on stereotyping as a substitute for motivation while others use stereotyping only for characterization or subtly blend the existence of stereotyping into the overall plot. A heavy reliance on stereotype for motivation seems to reflect a lack of skill rather than an attempt to perpetuate those stereotypes.

This thesis examines four taboo words (Jesus, God, fuck, ass) used in the films Jaws, Shampoo, and One Flew Over the Cuckoo's Nest. The dominant method of research is semantic, drawing on language theories of I.A. Richards and Alfred Korzybski. Investigation led to these conclusions: (1) Symbolic use of taboo terms is accompanied by positive attitudes, while non-symbolic use, which is more frequent, is accompanied by negative or neutral attitudes. (2) Casual non-symbolic pronunciation is leading to separation of the symbol from its referent. (3) Through this methodology, it is possible to ascertain the speaker's intent and his attitude toward the audience, but not his attitude toward the referent.

This investigation is concerned with determining the impact of the United States Supreme Court's Rodriguez decision upon the state and federal courts. The first chapter discusses the background behind the 1973 decision and outlines the basic issues. The second chapter examines the decision's impact upon opinions in the federal courts and concludes that Rodriguez has become a significant precedent. While school finance reform is dormant in the federal tribunals as a result of the decision, the third chapter concludes that reform is still possible in the state courts. However, there has been a deceleration in the rate of cases overturning school funding statutes since 1973. The final chapter examines some of the state legislatures and concludes that statutory reform is not necessarily linked to action in the courts.

Expectations in six areas of concern were explored by means of a questionnaire distributed to parents, staffs, and directors of three day care centers. These included physical setting, educational activities, social development, staff relationships with children, staff relationships with parents, and parent relationships with the center. Responses averaged over 50 per cent in each category of respondent. Analysis showed that although there were areas of almost total agreement, there were a number of statements that demonstrated a wide divergence in the expectations of the respondents. This study and the related literature indicate that there is cause for concern that children's needs for consistency in child-rearing practices are not always being met.

The study was an investigation of parental decision-making regarding preschool programs for their children. Data indicated that parents investigated a preschool program beyond a conversation with the preschool director and that non-educational aspects of preschool programs were important considerations in the selection of a preschool program by parents. Parents educational preferences tended to coincide with the educational programs of the preschools they selected, although parents indicated favorable opinions of more educational variables than any of the preschools surveyed offered. Levels of education attained by mothers appeared to have little effect on educational preferences, and parents whose first child was attending preschool had educational preferences similar to those of parents whose older children had attended preschool.