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In Vitro Studies of Nuclear Changes in Mammalian CNS Neurons Subjected to Rapid Acceleration Impact Injury (open access)

In Vitro Studies of Nuclear Changes in Mammalian CNS Neurons Subjected to Rapid Acceleration Impact Injury

An in vitro model of Rapid Acceleration Impact (RAI) Injury was used to study the effects of multiple impact (220 g/impact, 3-5 sec intervals) trauma on cultures of murine CNS cells. Investigations with spinal cord cultures showed that 1) multiple impacts delivered tangential to the plane of cell growth caused neuronal death (12% after 3 impacts to 46% after 10 impacts); 2) multiple impacts delivered normal to the plane of cell growth were much less effective (8% dead after 10 impacts); 3) most neuronal death occurred within 15 minutes after injury 4) morphological changes observed included increased nuclear prominence and somal swelling; and 5) pretreatment with ketamine (0.1mM) reduced cell death from 51 to 14% and reduced somal swelling. Identical studies performed on cortical cultures revealed minimal differences between the two tissues in their response to multiple tangential impacts.
Date: May 1995
Creator: Wolf, Amy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Influence of Family Environment on Ease of Discussion of Sexual Issues With a Partner (open access)

Influence of Family Environment on Ease of Discussion of Sexual Issues With a Partner

The purpose of the present study was to investigate the relationship between ease of discussion of sexual likes and dislikes with a sexual partner and religious, expressive, and affectional influences in the family of origin.
Date: May 1995
Creator: Broodo, Beth (Beth Lauren)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Internal Belief System: Variables that Influence Eighth-Grade Girls' Mathematics Achievement-Related Behaviors (open access)

An Internal Belief System: Variables that Influence Eighth-Grade Girls' Mathematics Achievement-Related Behaviors

The purposes of this study were to apply a model of achievement-related behaviors to a sample of eighth-grade girls and to ascertain whether this theoretical model continued to describe girls' internal beliefs regarding mathematics.
Date: May 1995
Creator: Fair, Margaret Reed
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Interrelationship of Macro- and Microbenthos to Substrate Characteristics in Lake Ray Roberts Texas (open access)

The Interrelationship of Macro- and Microbenthos to Substrate Characteristics in Lake Ray Roberts Texas

The objective of this research was to determine if physical and microbial sediment characterizations could be used to explain benthic macroinvertebrate distribution in two branches of Lake Ray Roberts, Texas.
Date: May 1995
Creator: Yeager, Phillip E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Intrinsic and Extrinsic Adaptation in a Simulated Combat Environment (open access)

Intrinsic and Extrinsic Adaptation in a Simulated Combat Environment

Genetic algorithm and artificial life techniques are applied to the development of challenging and interesting opponents in a combat-based computer game. Computer simulations are carried out against an idealized human player to gather data on the effectiveness of the computer generated opponents.
Date: May 1995
Creator: Dombrowsky, Steven P. (Steven Paul)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Investigation into the Stability of Students' Timbre Preferences from the Sixth through the Tenth Grade (open access)

An Investigation into the Stability of Students' Timbre Preferences from the Sixth through the Tenth Grade

The purpose of the study was to determine whether students' timbre preferences in the sixth grade remain stable through the tenth grade. The investigation also examined whether gender, band instruction, or musical home environment makes any difference in influencing the stability of students' timbre preferences from grade six through ten. Students' timbre preferences at the beginning of the study were compared to their preferences four years later. The students' timbre preferences were obtained by employing Gordon's Instrument Timbre Preference Test (ITPT). A questionnaire was also utilized at the conclusion of the study to determine which students had musical home environments and which did not. All sixth grade students enrolled in a single school district took the ITPT. Each student's scores were tallied and ranked in order to determine their timbre preferences; four years later they were retested and their scores were ranked again.
Date: May 1995
Creator: May, Brack M. (Brack Miles)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Italian Influences in the Corellisirende Sonaten of Telemann (open access)

Italian Influences in the Corellisirende Sonaten of Telemann

George Philipp Telemann is often thought of an experimenter with many nationalistic styles during the course of his career. His Corellian Sonatas demonstrate this facet of his work in their employment of Corelli's manner, and the cultivation of the Italian style. Telemann's Corellian sonatas are stylistically close to those of Corelli, and they do not appear to vary widely from the church and chamber sonatas of Corelli; Telemann fused the two sonata types in that dance elements are found in the church sonatas and the abstract elements of the church sonatas are inserted into the chamber sonatas. In addition to the amalgamation of internal elements, Telemann also experimented with the external features, such as the alternation of tempo and the four movement stereotype.
Date: May 1995
Creator: Chang, Young-Shim
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Laboratory Study of the Asiatic Clam (Corbicula fluminea Müller) as Influenced by Substrate, Food Source and Water Type (open access)

A Laboratory Study of the Asiatic Clam (Corbicula fluminea Müller) as Influenced by Substrate, Food Source and Water Type

Growth of Corbicula fluminea was monitored in the laboratory. Three experiments were conducted. Experiment I utilized three substrates and one food type. Experiment II utilized three substrates and two food types. Experiments I and II were conducted to determine if substrate type or food type effected growth. Experiment III used no substrates, one food type and was conducted to determine growth response to different types of water. Clams were maintained in three substrates: sand, gravel and clay. Clams were also maintained without substrate. Growth was monitored by measuring shell length (mm) and recording the weight (mg) of clams over a period of thirty days. At the end of the test period data were evaluated for normality and homogeneity.
Date: May 1995
Creator: Halbrook, Courtney (Courtney Ann)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Launching of an Accelerated School: A Case Study (open access)

The Launching of an Accelerated School: A Case Study

The purpose of this qualitative study was to explore the readiness, planning, training and implementation stages of staff development in the implementation of the Accelerated Schools Program in a suburban elementary school. The research questions focused on how the school became interested in the accelerated program; the steps that were taken to make the school ready to accept the program; the training made available to the staff, parents and students; how teacher approval and acceptance were achieved; and how the implementation was initiated and to what degree.
Date: May 1995
Creator: Montgomery, Alcynthia R. (Alcynthia Rose)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Linkages between the Texas Supreme Court and Public Opinion (open access)

Linkages between the Texas Supreme Court and Public Opinion

This investigation sought to identify linkages between the Texas Supreme Court and public opinion through 1) a matching of written decisions with scientifically conducted public opinion polls; 2) direct mention of public opinion and its synonyms in Texas justices' decisions; 3) comparison of these mentions over time; and 4) comparison of 10 personal attributes of justices with matched decisions. The study moved the unit of analysis from the U.S. Supreme Court to the state court level by using classification schemes and attribute models previously applied to the U.S. Supreme Court. It determined that linkages exist between the Texas Supreme Court's written decisions and public opinion from 1978 to July 1994.
Date: May 1995
Creator: Ragland, Ruth Ann Vaughan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Louis Cahuzac's Clarinet Music: an Examination of Selected Works, with Three Recitals and a Solo Performance of Selected Works by Debussy, Reinecke, Bloch, Stravinsky, Mozart and Others (open access)

Louis Cahuzac's Clarinet Music: an Examination of Selected Works, with Three Recitals and a Solo Performance of Selected Works by Debussy, Reinecke, Bloch, Stravinsky, Mozart and Others

Louis Cahuzac was one of the most sought-after clarinetists in the first half of the twentieth century. He was also highly respected as a conductor, as a teacher, and as a composer of music for the clarinet. The selections performed and discussed in the lecture depict Cahuzac's use of simple compositional forms and procedures which blend the expressive capability of the clarinet with its technical potential.
Date: May 1995
Creator: Sanders, Raphael P.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Mark Twain, Nevada Frontier Journalism, and the "Territorial Enterprise" : Crisis in Credibility (open access)

Mark Twain, Nevada Frontier Journalism, and the "Territorial Enterprise" : Crisis in Credibility

This dissertation is an attempt to give a picture of the Nevada frontier journalist Samuel L. Clemens and the surroundings in which he worked. It is also an assessment of the extent to which Clemens (and his alter ego Twain) can be considered a serious journalist and the extent to which he violated the very principles he championed.
Date: May 1995
Creator: Wienandt, Christopher
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Measurement of Mood State Changes Throughout a Competitive Volleyball Season (open access)

Measurement of Mood State Changes Throughout a Competitive Volleyball Season

Mood state changes have been assessed in endurance sport athletes such as swimmers, distance runners and rowers. However, much less is known about the psychological changes that occur in team sport athletes. The purpose of this study was to assess mood state changes of intercollegiate female volleyball players across a competitive season.
Date: May 1995
Creator: Schultes, Bruce A. (Bruce Anthony)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Mechanisms of rapid receptive field reorganization (open access)

Mechanisms of rapid receptive field reorganization

Rapid receptive field (RF) reorganization of somatosensory neurons in the cat dorsal column nuclei (DCN) was studied using electrophysiological and histological methods. Soon after denervation of the peripheral RF by lidocaine injection, every DCN neuron tested exhibited a reorganized RF.
Date: May 1995
Creator: Pettit, Michael J. (Michael James)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Melville's Vision of Society : A Study of the Paradoxical Interrelations in Melville's Major Novels (open access)

Melville's Vision of Society : A Study of the Paradoxical Interrelations in Melville's Major Novels

I hold that Melvillean society consists of paradoxical relationships between civilization and barbarianism, evil and good, the corrupt and the natural, the individual and the collective, and the primitive and the advanced. Because these terms are arbitrary and, in the context of the novels, somewhat interchangeable, I explore Melville's thoughts as those emerge in the following groups of novels: Typee, Omoo, and White-Jacket demonstrate the paradox of Melvillean society; Redburn, Moby-Dick, and Mardi illustrate the corrupting effects of capitalism and individualism; and The Confidence-Man, Israel Potter, and Pierre depict a collapsed paradox and the disintegration of Melville's society.
Date: May 1995
Creator: Terzis, Timothy R. (Timothy Randolph)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Molecular Modeling Study of Oxidative Degradation of Polyperfluoroethers Catalyzed by Iron Fluoride Surfaces : An Extended Hückel Theory Approach (open access)

Molecular Modeling Study of Oxidative Degradation of Polyperfluoroethers Catalyzed by Iron Fluoride Surfaces : An Extended Hückel Theory Approach

Extended Hückel methods are known to be a useful tool in understanding surface phenomena. Important quantities about atoms and chemical bonds can be obtained from this computationally simple method, although caution must be exercised in interpreting the results. Application of Extended Hückel calculations to large metal clusters reveals the role of d orbitals in solids. Basic ideas of constructing model compounds have been developed. Several model systems for surface chemisorption processes are constructed in order to understand the surface catalyzed oxidative degradation of polyperfluoroethers. The activation of oxygen molecules can be explained. The Lewis acid character of the iron fluoride surface can be predicted. Based on these results, mechanisms of the degradation processes are discussed.
Date: May 1995
Creator: Wang, Yanbin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Morning and Afternoon Response to Exercise Using Two Test Protocols (open access)

Morning and Afternoon Response to Exercise Using Two Test Protocols

The purpose was to investigate time of day on responses to two types of exhaustive cycle ergometer tests. Sixteen males performed six exercise tests: three - constant power protocol and three - incremental protocol. The first test was a learning trial; the other tests were performed one in the morning and one in the afternoon. ANOVA revealed that O2 deficit and lactate were higher in the afternoon than the morning. Regardless of test type, time to exhaustion tended to be higher in the afternoon. VO2max was unaffected by the time of day and test type. These results confirmprevious reports of a time of day effect on anaerobic capacity, and support the contention that V02max is stable about a day.
Date: May 1995
Creator: Jones, Nicole A. (Nicole Amy)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Music Performance Program Enrollment and Course Availability for Educationally Disadvantaged versus Non-Educationally Disadvantaged High School Students in Texas (open access)

Music Performance Program Enrollment and Course Availability for Educationally Disadvantaged versus Non-Educationally Disadvantaged High School Students in Texas

The purpose of this study was to measure music performance program enrollments and course availability for educationally disadvantaged and non-educationally disadvantaged groups (grades 9-12) in Texas, and to further examine relationships which could help music educators understand the role which music performance programs play in the lives of educationally disadvantaged students. Data analyzed were collected by Texas' Public Education Information Management System (PEIMS). Educationally disadvantaged groups under consideration included economically disadvantaged, at risk (as defined by Texas Education Agency guidelines), limited English proficient, as well as Black and Hispanic students. Separate analyses were conducted for band, choir, and orchestra. Subjects included 907,327 students from 1,048 school districts.
Date: May 1995
Creator: Nabb, David B.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Myths, Hierophanies, and Sacraments in William Faulkner's Yoknapatawpha Fiction (open access)

Myths, Hierophanies, and Sacraments in William Faulkner's Yoknapatawpha Fiction

Critical reactions to the religious experiences contained in William Faulkner's fiction have tended to fall within the context of traditional Christian belief systems. In most instances, the characters' beliefs have been judged by the tenets of belief systems or religions that are not necessarily those on which the characters base their lives. There has been no effort to understand the characters' spirituality as the basis of an independent religious belief system. Mircea Eliade's methods and models in the study of comparative religion, in particular his explanation of the interaction of the sacred and the profane during a hierophany (the manifestation of the sacred), can be applied to the belief systems of Faulkner's characters to reveal the theologies of the characters' religions, the nature of the belief systems on which they base their lives. Identification of those stories associated with hierophanies in Faulkner's Yoknapatawpha fiction enables the isolation and analysis of the sacred stories and sacraments of Yoknapatawpha County's civil religion. The storytellings examined appear in Flags in the Dust, "A Justice," and Absalom, Absalom!. The storytellers and the audiences are all a part of the Yoknapatawpha community, and the stories are drawn from a common history. The sacralization and use …
Date: May 1995
Creator: Zimmermann, David H. (David Howard)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A New Scheduling Algorithm for Multimedia Communication (open access)

A New Scheduling Algorithm for Multimedia Communication

The primary purpose of this work is to propose a new scheduling approach of multimedia data streams in real-time communication and also to study and analyze the various existing scheduling approaches.
Date: May 1995
Creator: Alapati, Venkata Somi Reddy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
I. On the Mechanism of Acid Promoted Rearrangement of PCU-Derived Pinacols II. Synthesis of a Trimethyltrishomocubyl Helical Tubuland Diol (open access)

I. On the Mechanism of Acid Promoted Rearrangement of PCU-Derived Pinacols II. Synthesis of a Trimethyltrishomocubyl Helical Tubuland Diol

I. Reductive dimerization of pentacyclo[5.4.0.0.^2,6.0^3,10.0^5'9]undecane-8-one-(PCU-8-one, 53) affords a mixture of meso and d,l pinacols (55a and 55b respectively). Acid promoted rearrangement of 55a and 55b conceivably can proceed with migration of C(7)-C(8) and/or C(8)-C(9) to form the corresponding pinacolone(s). In our hands, acid promoted rearrangement of 55a and 55b each proceeds with exclusive migration of C(7)- C(8) bond, thereby affording 58a and 59a respectively. Mechanistic features of this rearrangement are discussed. II. 4,7,1 l-trimethylpentacyclo[6.3.0.0.^2,6.0^3,l0.0^5,9]undecane-exo-4,exo-7-diol (23a) was successfully synthesized. This diol crystallizes in a helical tubuland lattice although its molecular structure does not possess C2 rotational symmetry.
Date: May 1995
Creator: Liu, Zenghui
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Orality-Literacy Theory and the Victorian Sermon (open access)

Orality-Literacy Theory and the Victorian Sermon

In this study, I expand the scope of the scholarship that Walter Ong and others have done in orality-literacy relations to examine the often uneasy juxtaposition of the oral and written traditions in the literature of the Victorian pulpit. I begin by examining the intersections of the oral and written traditions found in both the theory and the practice of Victorian preaching. I discuss the prominent place of the sermon within both the print and oral cultures of Victorian Britain; argue that the sermon's status as both oration and essay places it in the genre of "oral literature"; and analyze the debate over the extent to which writing should be employed in the preparation and delivery of sermons.
Date: May 1995
Creator: Ellison, Robert H. (Robert Howard)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Perceptions of the Changing Roles of Central Instructional Support Staff as Site-Based Decision Making is Implemented in One School District: A Descriptive Study (open access)

Perceptions of the Changing Roles of Central Instructional Support Staff as Site-Based Decision Making is Implemented in One School District: A Descriptive Study

The purpose of this study was to analyze ways in which the roles of instructional support staff as perceived by principals and instructional support staff members in a large, suburban school district have been affected by the implementation of site-based decision making (SBDM). Research questions focused on changes which have occurred in the roles of instructional support staff and in the services provided to schools by support staff since the implementation of SBDM, the roles which support staff members believe they have in SBDM, the perceptions of principals regarding the roles of instructional support staff in SBDM, and a comparison of the views of instructional support staff and principals regarding the district's implementation of SBDM.
Date: May 1995
Creator: Barnum, Rebecca Ann
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Policies and Practices of University Presses in Texas (open access)

Policies and Practices of University Presses in Texas

The purposes of this study were: (a) to present a brief history of university press publishing in Texas, (b) to describe operating policies and practices of these presses, (c) to compare these policies and practices with commonly accepted principles of publishing policy, and (d) to provide a view of the future of university press publishing in Texas.
Date: May 1995
Creator: Caraway, Georgia Kemp, 1950-
Object Type: Thesis or Dissertation
System: The UNT Digital Library