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Language Policy, Protest and Rebellion
The hypothesis that language discrimination contributes to protest and/or rebellion is tested. Constitutional language policy regarding administrative/judicial, educational and other matters is measured on three separate scales developed for this study; the status of each minority group's language under its country's policy is measured by another set of scales. Protest and rebellion variables are taken from Gurr's Minorities at Risk study. Findings include an indication that group language status contributes positively to protest and rebellion until a language attains moderate recognition by the government, at which point status develops a negative relationship with protest and rebellion, and an indication that countries with wider internal variations in their treatment of language groups experience higher levels of protest and rebellion on the part of minority groups.
Date:
May 2001
Creator:
Lunsford, Sharon
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Factors related to cycling performance
There were two primary goals in this investigation. The first goal was to determine if results from field tests (time-trials and a Conconi incremental test) are related to performance in mass-start long-distance bicycle races. The second goal was to investigate inter-relationships among field test variables. The testing variables measured were critical velocity (CV), Conconi anaerobic threshold (AT) velocity, 4mM AT velocity, fatigue index, peak blood lactate, and anaerobic work capacity. Participants were USCF 30 category 1 through 5 cyclists. Participants performed one 20.75 km and two 10.37 km all-out tests in the field. They also performed an incremental test. The tests were performed at one-week intervals. Results from the field tests were compared to recent mass-start racing performance. Results indicated that Conconi AT velocity was related to performance in a 161-km race. There was also a relationship between 4mM AT velocity and CV and between Conconi AT velocity and 4mM AT velocity. It was concluded that field tests might provide information about performance ability in mass-start long-distance bicycle races.
Date:
May 2001
Creator:
Naukkarinen, Vesa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Stylistic Analysis of American Indian Portrait Photography in Oklahoma, 1869-1904
This thesis studies the style of Native American portrait photographs of William S. Soule (1836-1908), John K. Hillers (1834-1925), and William E. Irwin (1871-1935), who worked in Oklahoma from 1869 to 1904. The examination of the three men's work revealed that each artist had different motivations for creating Native American portrait photographs, and a result, used a distinct style. However, despite the individual artistic styles, each artist conformed to Native American stereotypes common during the nineteenth-century. The thesis includes a discussion of the history of the area, photographer biographies, a stylistic analysis of the photographs, and how the images fit into American Indian stereotypes.
Date:
May 2001
Creator:
Nelson, Amy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Laser Cutting Machine: Justification of initial costs
The Industrial Laser is firmly established in metalcutting as the tool of choice for many applications. The elevator division of Montgomery KONE Inc., in an effort to move towards quality, ontime, complete deliveries and 100% customer satisfaction, decided to invest in new equipment to improve manufacturing processes. A huge investment is proposed for a laser-cutting machine. It is the responsibility of Manufacturing Engineering to direct the management by justifying its benefits, which includes payback time and financial gains. Factors such as common line cutting, automated material handling system and cutting time were involved in justification of the initial cost of a laser-cutting machine. Comparative statistics on appropriate factors accurately determine and justify the initial cost of a laser-cutting machine.
Date:
May 2001
Creator:
Nagaraja, Dwarakish
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Selection and Use of Aquatic Vegetation by Migratory Waterfowl in North Central Texas
Assessment of aquatic plant selection by waterfowl has been conducted during the winters of 1997-2000 on 49 0.2-0.79 ha research ponds in north central Texas. Ponds were categorized by dominant plant species into eight habitat types. Census with waterfowl species identification were performed to investigate impacts of aquatic vegetation and water depth on waterfowl. Eighteen waterfowl species were observed. Peak migration occurred in late December/early January. Mixed native ponds and mixed native/hydrilla ponds were the most frequently selected habitat types. The study included correlation analysis between pond water levels and waterfowl use. Full ponds received greatest use followed by half full ponds, while almost empty ponds received minimal use. Time activity budgets were conducted on waterfowl utilizing mixed native and hydrilla ponds to compare waterfowl time partitioning on native aquatic vegetation versus hydrilla. Although only minor differences were found in time budgets, social status appears to be strongly related to habitat selection. Ducks on native ponds were paired (86%), conversely no ducks on hydrilla ponds were paired. Hydrilla pond although frequently utilized, were populated by lower status birds mostly single hens.
Date:
May 2001
Creator:
Smith, JoEtta Kaye
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Portrait of Your Stream: Development and Assessment of a Stream Ecology Program for Middle-School Student
Portrait of Your Stream (POYS) is a stream ecology and student action program designed for use with middle-school students. The program is correlated with learning cycle pedagogical methods emphasizing student-centered lessons and activities in both classroom and outdoor settings. Implementation of a pilot program in the Fall semester of 1999 was used to collect formal and informal responses and data from students and teachers. Data included changes in student knowledge, skills and attitudes and were analyzed for determination of the success of program objectives and modifications to the program. The final POYS program is currently distributed and administered by the Botanical Research Institute of Texas.
Date:
May 2001
Creator:
Swirczynski, Brenda J.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Guilt and Shame as They Relate to Combat Posttraumatic Stress Disorder (PTSD): An Analysis of Trauma Content And Resulting Symptomatology
This study began testing the Sewell and Williams (in press) model that differing trauma types yield differing presentations in social versus event processing domains. Other hypotheses explored trauma type with levels of guilt, and shame-proneness with anxiety. Volunteers were 44 male combat veterans being treated for PTSD. Data analyses determined whether trauma type related to guilt and perceived social support and whether shame-proneness related to levels of anxiety. High shame persons may process anxiety and social support differently than low shame persons. Results can assist professionals understand how a person's functioning is affected by certain types of trauma. Future research should focus on increasing social support for persons who have experienced trauma.
Date:
May 2001
Creator:
Taber, Iris
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Virtual teams: The relationship between organizational support systems and effectiveness
This study investigates the effects of eight organizational support systems on virtual team effectiveness in five areas: communication, planning tasks and setting goals, solving problems and making decisions, resolving conflict, and responding to customer requirements. One hundred and eighty surveys were sent to information technology managers and collaborative team members, representing 43 companies. The results indicated that developing new roles for IT professionals and senior managers significantly increased virtual team effectiveness in several areas. The findings support the theory that organizations that utilize virtual teams must create high-level structures, policies, and systems to support the teams and the information tools they use.
Date:
May 2001
Creator:
Townsley, Carole
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Extensions to Jinni Mobile Agent Architecture
We extend the Jinni mobile agent architecture with a multicast network transport layer, an agent-to-agent delegation mechanism and a reflection based Prolog-to-Java interface. To ensure that our agent infrastructure runs efficiently, independently of router-level multicast support, we describe a blackboard based algorithm for locating a randomly roaming agent. As part of the agent-to-agent delegation mechanism, we describe an alternative to code-fetching mechanism for stronger mobility of mobile agents with less network overhead. In the context of direct and reflection based extension mechanisms for Jinni, we describe the design and the implementation of a reflection based Prolog-to-Java interface. The presence of subtyping and method overloading makes finding the most specific method corresponding to a Prolog call pattern fairly difficult. We describe a run-time algorithm which provides accurate handling of overloaded methods beyond Java's reflection package's limitations.
Date:
May 2001
Creator:
Tyagi, Satyam
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Hearsee/Say and Hearsee/Write on Acquisition, Generalization and Retention.
This study examines the effects of training in two yoked learning channels (hearsee/say and hearsee/write) on the acquisition, generalization and retention of learning. Four fifth-grade participants were taught the lower-case letters of the Greek alphabet. Twelve letters were taught in the hearsee/say channel and twelve letters taught in the hearsee/write channel for equal amounts of time. The see/say channel reached higher frequencies at the end of training and showed higher acquisition celerations than the see/write channel. However, the see/write channel showed higher accuracy and retention than the see/say channel. The see/write channel also showed greater generalization across learning channels including the see/say, think/say, think/write and see-name/draw-symbol.
Date:
May 2001
Creator:
Zanatta, Laraine Theresa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Essercizii musici: A Study of the Late Baroque Sonata
Telemann's Essercizii musici is a seminal publication of the 1730's representative of the state of the sonata in Germany at that time. Telemann's music has been largely viewed in negative terms, presumably because of its lack of originality, with the result that the collection's content has been treated in a perfunctory manner. This thesis presents a reappraisal of the Essercizii musici based on criteria presented in Quantz's Versuch. A major source of the period, the Versuch provides an analytical framework for a deeper understanding of the sonatas that comprise Telemann's last publication. A comparison of contemporary publications of similarly titled collections establishes an historical framework for assessing the importance of the Essercizii musici as part of a tradition of publications with didactic objectives that may be traced to the late 17th century.
Date:
May 2001
Creator:
Volcansek, Frederick Wallace
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A model for designing a new telecommunication system in Mongolia
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Use of this item is restricted to the UNT Community
The objective of this research is to design, and determine the feasibility of, a telecommunication system for the city of Erdenet, Mongolia. The Mongolian Telecommunication Company, Telecommunication Company of Erdenet city, and the National Statistical Office of Mongolia provided the data required for telecommunication forecasting of Erdenet. The literature review and analysis of the telecommunication forecasting indicate the need for a model of a new Telecommunication system in Erdenet, Mongolia. The model, as indicated, should become a useful example for planning and updating the telecommunication system in Mongolia. The design of a proposed telecommunication network involves the following considerations: analyzing and forecasting telephone traffic, calculating the required number of channels, determining exchange locations, traffic matrix, and establishing a basic hierarchical structure.
Date:
May 2001
Creator:
Baatarjav, Enkhbat
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Layered Double Hydroxides and the Origins of Life on Earth
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Use of this item is restricted to the UNT Community
A brief introduction to the current state of research in the Origins of Life field is given in Part I of this work. Part II covers original research performed by the author and co-workers. Layered Double Hydroxide (LDH) systems are anion-exchanging clays that have the general formula M(II)xM(III)(OH)(2x+2)Y, where M(II) and M(III) are any divalent and trivalent metals, respectively. Y can be nearly any anion, although modern naturally occuring LDH systems incorporate carbonate (CO32-), chloride (Cl-), or sulfate (SO42-) anions. Intercalated cobalticyanide anion shows a small yet observable deviation from local Oh symmetry causing small differences between its oriented and non-oriented infrared spectra. Nitroprusside is shown to intercalate into 2:1 Mg:Al LDH with decomposition to form intercalated ferrocyanide and nitrosyl groups of an unidentified nature. The [Ru(CN)6]4- anion is shown to intercalate into layered double hydroxides in the same manner as other hexacyano anions, such as ferrocyanide and cobalticyanide, with its three-fold rotational axis perpendicular to the hydroxide sheets. The square-planar tetracyano-nickelate(II), -palladate(II), and platinate(II) anions were intercalated into both 2:1 and 3:1 Mg:Al layered double hydroxides (LDH). The basal spacings in the 2:1 hosts are approximately 11 Å, indicating that the anions are inclined approximately 75 degrees relative to …
Date:
May 2001
Creator:
Brister, Brian
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A preliminary study on the effect of selective serotonin reuptake inhibitors on peripheral and lower brainstem auditory processing.
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Use of this item is restricted to the UNT Community
This study compared auditory behavioral and physiologic measures in normal control subjects and subjects prescribed with a selective serotonin reuptake inhibitor (SSRI) who were yet to take the drug and those currently taking an SSRI. Test measures used were pure tone averages (PTA), acoustic reflex thresholds, uncomfortable loudness levels (UCL), otoacoustic emissions, masking level difference, temporal integration, amplitude resolution, and Beck Depression Inventory-II (BDI-II) scores. Results indicated that there was a significant difference in the amplitude resolution of the unmedicated group when compared to the medicated and the control group. There was also a significant positive correlation between dynamic range (difference between UCL and PTA) and amplitude resolution. The BDI-II revealed a significant difference between the scores of the unmedicated and the control group as well as the medicated and the control group. Although other test measures indicated differences between the groups, the differences were not statistically significant.
Date:
May 2001
Creator:
Carney, Lara E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Break-up of the Confederate Trans-Mississippi Army, 1865
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Use of this item is restricted to the UNT Community
Unlike other Confederate armies at the conclusion of the Civil War, General Edmund Kirby Smith's Trans-Mississippi Army disbanded, often without orders, rather than surrender formally. Despite entreaties from military and civilian leaders to fight on, for Confederate soldiers west of the Mississippi River, the surrender of armies led by Generals Robert E. Lee and Joseph E. Johnston ended the war. After a significant decline in morale and discipline throughout the spring of 1865, soldiers of the Confederate Trans-Mississippi Department chose to break-up and return home. As compensation for months of unpaid service, soldiers seized both public and private property. Civilians joined the soldiers to create disorder that swept many Texas communities until the arrival of Federal troops in late June.
Date:
May 2001
Creator:
Clampitt, Brad R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Geography of Tuberculosis in the Greater Accra Region of Ghana
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Use of this item is restricted to the UNT Community
In Ghana, spatial patterns of TB vary for different regions and variations may occur within the same region. This study examines TB distribution in the Greater Accra Region of Ghana using Geographic Information Systems (GIS). Behavioral, cultural and economic variables associated with TB morbidity are examined. From January 1998 to June 1999, data obtained from the Ghana Ministry of Health revealed that, men had a higher TB rate than women, TB was common among the age groups 20-29 and 30-39, and the average TB rate of 67.7 per 100, 000 population in the Greater Accra Region was higher than the national average (58.6 per 100,000 population). Using the human ecology model, this study attempts to explain the spatial distribution of the disease.
Date:
May 2001
Creator:
Donkor, Kweku
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Steroid Dose Regimen on the Relationship Between Lower Extremity Muscle Function and Cardiac Function in Post Heart Transplant Patients
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Use of this item is restricted to the UNT Community
Differences in cardiovascular/aerobic function in heart transplant patients might be attributed to the rate of corticosteroid withdrawal and/or to skeletal muscle function. This hypothesis was tested among nine male, cardiac transplant recipients. Prednisone dosage was monitored, and isokinetic strength testing was performed at 4 different time periods throughout the first year post-transplantation. Cardiovascular/aerobic measurements were obtained at the fourth time period. Pre-surgery characteristics were obtained from the patient's medical record. Significant Pearson-product moment correlations were only found between muscle function and aerobic function and between pre-surgery characteristics and cardiovascular/aerobic performance. The results of this study show no evidence that rapid reduction of prednisone dosage enhances aerobic function by benefiting skeletal muscle function.
Date:
May 2001
Creator:
Galatas, Mary V.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Improving Appointment Keeping at an Eye Care Clinic Using a Revised Process Package
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Use of this item is restricted to the UNT Community
Missed appointments by patients are a major problem for health care professionals. To combat this issue, some optometrists use a pre-appointing system in which patients are scheduled for an annual exam a year after their initial visit. Prior to that subsequent appointment, clinic staff often try to contact the patient to confirm the appointment. This study examined baseline levels of appointment keeping, analyzed existing processes for pre-appointing patients, and introduced a revised process package to improve appointment keeping at an eye care clinic. This package included training, mailed postcard reminders and two phone call reminders. Results indicate appointment keeping by pre-appointed patients increased over baseline. The intervention was also shown to be cost-beneficial.
Date:
May 2001
Creator:
Hodge, Victoria L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Distribution and Probable Sources of Nitrate in the Seymour Aquifer, North Central Texas, USA
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Use of this item is restricted to the UNT Community
This study utilized GIS and statistical methods to map the spatial variability of nitrate and related groundwater constituents in 30 counties above the Seymour Aquifer, analyze temporal patterns of nitrate pollution, identify probable sources of pollution, and recommend water development strategies to minimize exposure to nitrate and reduce future aquifer contamination. Nitrate concentrations in excess of 44 mg/L (US EPA limit) were commonly observed in the Seymour Aquifer region, especially in the central agricultural belt. Data indicated that this is an ongoing problem in the Seymour Aquifer and that agricultural activity and rural septic systems are the likely sources of the nitrate. Inconclusive results emphasized the need for a more comprehensive spatial and temporal water quality monitoring.
Date:
May 2001
Creator:
Hillin, Clifford K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Correspondence Between Aquatic Ecoregions and the Distribution of Fish Communities of Eastern Oklahoma
I assessed fish community data collected by the Oklahoma Conservation Commission from 82 minimally impaired wadeable reference streams in eastern Oklahoma to determine whether existing aquatic ecoregions provide the best framework for spatial classification for the development of biological assessment methods and biocriteria. I used indirect ordination and classification to identify groups of sites that support similar fish communities. Although correspondence was observed between fish assemblages and three montane ecoregions, the classification system must be refined and expanded to include major drainage basins and physical habitat attributes for some areas to adequately partition variance in key measures of biological integrity. Results from canonical correspondence analysis indicated that substrate size and habitat type were the primary physical habitat variables that influenced the fish species composition and community structure.
Date:
May 2001
Creator:
Howell, Charles E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Reactions of psychotherapists in training to religious questions
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Use of this item is restricted to the UNT Community
This project investigated the spiritual well-being (SWB) of psychotherapists in training and their physiological reactions to religious questions posed by a mock client. Electrodermal activity served as an index of physiological arousal interpreted as anxiety. Thirteen psychotherapists in training at the University of North Texas were recruited. They participated in a simulated intake session with a mock client who asked the psychotherapist neutral questions, personal-other questions (POQs), and personal-religious questions (PRQs). It was discovered that the level of SWB did not affect subjects' anxiety responses to PRQs. There also was no difference in subjects' anxiety responses for POQs between high and low SWB therapists. However, psychotherapists did experience some anxiety associated with questions related to their counseling experience and expertise.
Date:
May 2001
Creator:
Hutchinson, Geoffrey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of a Conflicting Instruction on a Fr 5 Performance
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Use of this item is restricted to the UNT Community
The purpose of this experiment was to evaluate the effects of a conflicting instruction on FR-5 performances by an ABABC design. After all four college students were consistently pressing 1-5-3 followed by sound-clips, the schedule value changed to FR-5 (A). Then they were presented with the written instruction "Press 426" (B) in addition to the previous condition. In the last condition (C), 1-5-3 responses were then scheduled for extinction in three participants and the reinforcer was changed from sound-clips to points for one participant. The results showed that unlike previous experiments, instructions did not override the scheduled contingencies. Instruction-following occurred only when there were no other contingencies (i.e., extinction of 1-5-3) or the scheduled reinforcer for FR-5 performances was weak.
Date:
May 2001
Creator:
Koremura, Yuka
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Southland, The Completion Of a Dream: The Story Behind Southern Newsprint's Improbable Beginnings
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The purpose of this thesis is to explore the creative process behind Southland Paper Mills, the South's first newsprint factory. The thesis describes the conditions leading to the need for southern newsprint. It then chronicles, through the use of company records, the difficult challenges southern newsprint pioneers faced. The thesis follows the company history from the gem of an idea during the mid 1930's through the first decade of the Southland's existence. The paper concludes with the formative years of the company in the 1940's.
Date:
May 2001
Creator:
McGrath, Charles
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Parts of Women
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Use of this item is restricted to the UNT Community
Parts of Women contains a scholarly preface that discusses the woman's body both in fiction and in the experience of being a woman writer. The preface is followed by five original short stories. "Parts of Women" is a three-part story composed of three first-person monologues. "Controlled Burn" involves a woman anthropologist who discovers asbestos in her office. "Tango Lessons" is about a middle-aged woman who's always in search of her true self. "Expatriates" concerns a man who enters the lives of his Hare Krishna neighbors, and "Rio" involves a word-struck man in his attempt to form a personal relationship.
Date:
May 2001
Creator:
Murphy, Maria Christine
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library