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Analysis of Imagery Concerning Body and Landscape (open access)

Analysis of Imagery Concerning Body and Landscape

The primary purpose of this study was to investigate how imagery evolved in my work, in dealing with the relationship between body and landscape and the relationship between image and abstraction. Five paintings were created for the investigation of the evolution in my imagery. A journal of notes was kept concerning each piece while in progress and immediately following its completion. The analyzing method was a visual analysis of the structure and content, as well as the process through which the imagery evolved.
Date: May 1985
Creator: Juergens, Sharon
System: The UNT Digital Library
Brain Activity in Rats Exposed to Short-Term External Electrical Fields (open access)

Brain Activity in Rats Exposed to Short-Term External Electrical Fields

The effects of external electric fields (EEF) on brain activity in anesthetized rats were studied. The field strengths used, 9 kV/m and 5 kV/m, both D.C. and A.C. (60Hz) were in the range of those measured beneath current overhead transmission lines. Brain activity was monitored from surface electrodes and from electrodes stereotaxically implanted in the posterior-lateral portion of the hypothalamus. It was found that 9 kV/m and 5 kV/m EEF's both D.C. and A.C. brought about statistically significant changes in hypothalamic activity, however, the effects were bi-directional, (i.e. increases and decreases). Only seven of the 60 animals exposed showed changes in the EEG recorded with surface electrodes. The data clearly indicate that (1) anesthetized animals do respond to a change in the external electric field around them, (2) the hypothalamus may contain special electro-receptors that, in turn, may alter various other physiological processes, and (3) the data indicates the need for further research to help government agencies to establish more adequate safety guidelines.
Date: May 1985
Creator: Hines, Gregory M. (Gregory Manuel)
System: The UNT Digital Library
Corporal Punishment in American Education from a Historical, Legal, and Theoretical Perspective (open access)

Corporal Punishment in American Education from a Historical, Legal, and Theoretical Perspective

This paper discusses corporal punishment as a disciplinary method in American public schools. The effectiveness of corporal punishment is investigated. Chapter I introduces corporal punishment as a pertinent educational issue. Chapter II discusses the historical development of corporal punishment. Chapter III discusses the legal ramifications of corporal punishment. Chapter IV looks at surveys and studies that have been conducted in regard to the issue. Chapter V discusses a survey of teachers in Lewisville, Texas. Teachers responded to 42 statements pertaining to corporal punishment. Chapter VI concludes that research indicates that corporal punishment will not be effective unless it is administered harshly and consistently. The paper concludes that corporal punishment will not be necessary if higher educational institutions train teachers in alternative methods.
Date: May 1985
Creator: Carnes, Susan Carle
System: The UNT Digital Library
Discriminative Stimulus Properties of Cocaine: Tolerance and Cross-Tolerance Characteristics (open access)

Discriminative Stimulus Properties of Cocaine: Tolerance and Cross-Tolerance Characteristics

Rats were trained to discriminate an injection of cocaine, 5.0 mg/kg, from an injection of saline, using a two-lever choice paradigm: one lever was correct after cocaine injection, the other lever was correct after a saline injection. After training, cocaine and methamphetamine were generalized to the cocaine lever, but phenethylamine (PEA) was only partially generalized. Cocaine was injected every 8 hrs, 20.0 mg/kg, and the discriminability of 5.0 mg/kg was tested every other day. Redetermination of the cocaine generalization curve after 6 days of chronic administration showed a shift to the right, from an ED50 of 4.1 mg/kg in the pre-chronic condition to 10.0 mg/kg. Tolerance did not develop to the behavioral effects of cocaine, measured by time to the first reinforcement and response rate. There was cross-tolerance to methamphetamine; however, no evidence for cross-tolerance to PEA was obtained. Following the acquisition of tolerance, chronic administration of cocaine was terminated, and the discriminability of 5.0 mg/kg was tested every other day for loss of tolerance. After 8 days the ED50 returned to 5.0 mg/kg.
Date: May 1985
Creator: Wood, Douglas M. (Douglas Michael)
System: The UNT Digital Library
Emergence, Growth, Drift and Microdistribution of Stoneflies (Plecoptera) in an Ozark Foothills Stream, Delaware County (open access)

Emergence, Growth, Drift and Microdistribution of Stoneflies (Plecoptera) in an Ozark Foothills Stream, Delaware County

Adult stonefly emergence, nymphal growth, drift and microdistribution were examined in Battle Branch, a secondorder, spring-fed stream, from November, 1982 to May, 1984. Adults of 22 species emerged successionally, with specific adults present every month. Searching emergent objects and the stream margin was best for collection of winter and early spring emerging species. Sweeping the streamside and light trapping were most efficient for late spring and summer emerging species. Nymphal growth for nine abundant species generally fit double log or semilog models. Drift was low, but did show a post-sunset pulse. Generally, leaf material was found to be significantly related (p<O.001) to density, diversity and biomass of stoneflies in Battle Branch.
Date: May 1985
Creator: Ernst, Mark R. (Mark Richard)
System: The UNT Digital Library
An Environmental Evaluation and Public Opinion Survey Concerning Park and Recreation Development in Flower Mound, Texas (open access)

An Environmental Evaluation and Public Opinion Survey Concerning Park and Recreation Development in Flower Mound, Texas

An environmental evaluation concerning land designated for park and recreation development was conducted in Flower Mound, Texas. Results were compared with the findings of a public opinion survey of the citizenry of Flower Mound. The first section is an introduction to land use and recreation planning. Section two presents a review of pertinent literature concerning environmental evaluation and recreation and recreation planning. Third is a brief description of Flower Mound, Texas, and existing park properties. The fourth section discusses both the environmental evaluation and the survey research techniques employed. Results of the environmental evaluation are examined in section five. The public opinion survey results are discussed in the sixth section. Flower Mound is fortunate to have a number of sites suitable for recreational development. If recreational development is to be successful and satisfactory to the users, decisions will need to be made in an organized fashion. Park and recreation planning should be incorporated within a general land use planning framework.
Date: May 1985
Creator: Nelson, Thomas A. (Thomas Allen)
System: The UNT Digital Library
An Existence Theorem for an Integral Equation (open access)

An Existence Theorem for an Integral Equation

The principal theorem of this thesis is a theorem by Peano on the existence of a solution to a certain integral equation. The two primary notions underlying this theorem are uniform convergence and equi-continuity. Theorems related to these two topics are proved in Chapter II. In Chapter III we state and prove a classical existence and uniqueness theorem for an integral equation. In Chapter IV we consider the approximation on certain functions by means of elementary expressions involving "bent line" functions. The last chapter, Chapter V, is the proof of the theorem by Peano mentioned above. Also included in this chapter is an example in which the integral equation has more than one solution. The first chapter sets forth basic definitions and theorems with which the reader should be acquainted.
Date: May 1985
Creator: Hunt, Cynthia Young
System: The UNT Digital Library
Exoprotease Production by Aeromonas hydrophila in a Chemically Defined Medium (open access)

Exoprotease Production by Aeromonas hydrophila in a Chemically Defined Medium

Wretlind, Heden, and Wadstrom found ammonium sulfate to be inhibitory for the formation of extracellular protease in Aeromonas hydrophila grown in Brain Heart Infusion medium. They demonstrated by manipulating the iron and zinc content within their medium that it is possible to differentially affect the accumulation of hemolysin and protease by A. hydrophila grown in batch culture. Further manipulation of the composition of this medium was done in the present study to determine the effect of other components on the production of protease. The purpose of this study was to determine the factors affecting the level of A. hydrophila protease produced in a chemically defined medium.
Date: May 1985
Creator: Anderson, Paulette S. (Paulette Sue), 1952-
System: The UNT Digital Library
Food Habits, Dietary Overlap and Electivity of Non-Game Insectivorous Fishes in an Ozark Foothills Stream (open access)

Food Habits, Dietary Overlap and Electivity of Non-Game Insectivorous Fishes in an Ozark Foothills Stream

Etheostoma spectabile, E. punctulatum, and Cottus carolinae were sampled Mar., 1983, - Feb., 1984, in Flint Creek, Oklahoma. Immature E. spectabile ate primarily microcrustaceans, while mature fishes relied more on mayflies and amphipods. Juvenile E. punctulatum fed upon mayflies, amphipods, and Asellus. Mature E. punctulatum ate primarily mayflies, and other relatively larger prey. Cottus carolinae consumed chironomids almost exclusively in Jan. - Feb., 1984, while mayflies were predominant the remainder of the year. No significant habitat partitioning between the two darters, and seasonal habitat segregation between C. carolinae and the two darters was found. Dietary overlap between the darters was significantly correlated (p<0.0005) to differences in x prey sizes.
Date: May 1985
Creator: Todd, C. Stan (Charles Stan)
System: The UNT Digital Library
History of Self-Disclosure and Premature Termination from Therapy (open access)

History of Self-Disclosure and Premature Termination from Therapy

The present study was designed to investigate the hypothesis that female clients who tend to terminate therapy prematurely will have been assigned to a male therapist. The study also tested the hypothesis that female clients who defect from therapy will have reported a history of low self-disclosure to individuals of the same sex as their therapist. Neither hypothesis was supported by the results of this study, but findings suggest a possible bias in the manner by which male and female therapists select their clients for therapy. It also appears that female defectors may be over-identifying with their family of origin or that they may be overly dependent on it as a resource system. This may be the reason for their apparent difficulty in developing a prototype that will accommodate their therapist.
Date: May 1985
Creator: Rose, Grace (Grace Elizabeth)
System: The UNT Digital Library
Predicting Attrition of Baptist Foreign Missionaries Using the MMPI (open access)

Predicting Attrition of Baptist Foreign Missionaries Using the MMPI

Relationships between MMPI subscale scores and premature resignations among Southern Baptist foreign missionaries appointed in 1964 were investigated in an effort to develop a predictive model for attrition. Unsuccessful attempts were made at cross-validating the results of a previous related study, and two separate discriminant function analyses were undertaken. The first sorted subjects into three groups, defined by subjects' length of service before resignation. The second classified them according to the reason stated for their termination, if applicable. Both procedures failed to establish a statistically reliable classification system for relating MMPI scores with premature resignations. Although consistent success has been achieved with the MMPI as a screening instrument for psychopathology, it is suggested that the instrument is not adequately sensitive as a screening device for groups lying predominantly within the normal range of variability.
Date: May 1985
Creator: Cobbs, David Lee
System: The UNT Digital Library
The Relationship of Dose to Plasma Concentration with Acute Ingestion of Amitriptyline (open access)

The Relationship of Dose to Plasma Concentration with Acute Ingestion of Amitriptyline

The high concentrations of amitriptyline found in blood at autopsy, indicating a large amount of ingested drug, is often contradictory to the prescription available. Using dogs as the animal model it was found that there was a large variance between the dose given and its plasma amitriptyline concentration during the acute phase of absorption. Factors that were found to be important were the amitriptyline to nortriptyline (as metabolite) ratio, the nature of the specimen, and the collection site. The calculation of the dose from an acute ingestion of amitriptyline resulting in death cannot be accurately determined from a single specimen collected at autopsy.
Date: May 1985
Creator: Williams, Teresa Lynn
System: The UNT Digital Library
Selected Objects and Their Effectiveness as Fired Decorative Additions (open access)

Selected Objects and Their Effectiveness as Fired Decorative Additions

It was the intention of this project to test selected objects to determine which ones could be used for decoration. If an object became a stable, aesthetically pleasing, part of the glazed piece, then it was considered successful. Two firing temperatures are important to my work; they are 1796 degrees Fahrenheit, oxidation (which is cone 06), and 2372 degrees Fahrenheit, reduction (which is cone 10). I expected some of these objects I chose to work better at the lower temperature, and some to work better at the higher temperature. All objects were test-fired on small plate-tiles at both temperatures. After testing, I decided which items were successful as decorative additions. With these successful objects, I was concerned about what methods of attachment were possible and what surfaces were appropriate.
Date: May 1985
Creator: Judy, Shirley J.
System: The UNT Digital Library
A Study of Lean Body Mass in Estimating Basal Metabolic Rate (open access)

A Study of Lean Body Mass in Estimating Basal Metabolic Rate

The primary purpose of the study was to determine if measured LBM could be used as a more powerful predictor of BMR than could surface area (SA) as calculated by the formula of DuBois and DuBois (1916). It was also of interest to develop a prediction equation for BMR using multiple regression analysis. Data from 82 women and 76 men were included in the study. Pearson product-moment correlations indicated that LBM was a better predictor for BMR than SA on either of the principal SA prediction equations, those of Aub and DuBois (1917) and Harris and Benedict (1919). Age, sex, and fat weight were not found to contribute significantly to prediction when included by multiple regression analyses. Linear equations for BMR as a function of LBM were developed for each sex. Tables based on these equations were also generated as a quick reference for clinicians.
Date: May 1985
Creator: Lachenbruch, Charles
System: The UNT Digital Library