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Assessment and Treatment of Multiple Topographies and Functions of Self-injury
Results of a functional analysis indicated that the self-injurious behavior (SIB) of an adult female with profound mental retardation occurred primarily in the alone and demand conditions. Graphs of the separate topographies (head slaps and head bangs) showed that head banging occurred in the alone condition and that both head banging and head slapping occurred in the demand condition. A data analysis procedure to identify within-session trends across sessions and fluctuations in rates of SIB by topography revealed that most of the demands escaped were escaped by head slaps and that over 80% of all head slaps were associated with escape, compared to less than 1%of all head bangs, indicating that head banging and head slapping were members of separate functional response classes. Treatment consisted of noncontingent availability of preferred leisure materials, and produced substantial decreases of both head banging and head slapping. Interpretation of the results are discussed, as well as some implications and limitations of the study.
Date:
December 1998
Creator:
Gonzalez, Angela M. (Angela Maria), 1970-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Natural Smooth Measures on the Leaves of the Unstable Manifold of Open Billiard Dynamical Systems
In this paper, we prove, for a certain class of open billiard dynamical systems, the existence of a family of smooth probability measures on the leaves of the dynamical system's unstable manifold. These measures describe the conditional asymptotic behavior of forward trajectories of the system. Furthermore, properties of these families are proven which are germane to the PYC programme for these systems. Strong sufficient conditions for the uniqueness of such families are given which depend upon geometric properties of the system's phase space. In particular, these results hold for a fairly nonrestrictive class of triangular configurations of scatterers.
Date:
December 1998
Creator:
Richardson, Peter A. (Peter Adolph), 1955-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Role and Functions of Diversity Affairs Centers' Chief Personnel Officers at Public Universities in Texas
The problem of this study concerns the role and functions of diversity affairs centers' chief personnel officers at public universities in Texas. Because of the political and evolving nature of diversity affairs offices, it is important to understand the functions and types of services these centers provide with respect to institutional goals, missions, and student retention at public universities in Texas.
Date:
May 1998
Creator:
David, John Seh
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Parental Divorce and Family Conflict on Young Adults Females' Perceptions of Social Support and Adjustment
The purpose of this study was to explore the effects of parental divorce and family conflict during adolescence on young adult females' social support and psychological adjustment. The three areas explored were perceptions of relationship satisfaction and closeness, sources and amount of social support and adjustment. One hundred and forty-one female undergraduates, 53% from families in which their parents are still married and 47% from families in which a parental divorce occurred during adolescence, completed the following measures: the Dyadic Adjustment Scale (Spanier, 1976), the Social Provisions Scale-Source Specific (Cutrona, 1989), the Inventory of Common Problems (Hoffman & Weiss, 1986), the Family Environment Scale (Moos & Moos, 1981), and the Sibling Relationship Questionnaire (Furman & Buhrmester, 1985).
Date:
May 1998
Creator:
Quinn, M. Theresa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Structural and Photoelectron Emission Properties of Chemical Vapor Deposition Grown Diamond Films
The effects of methane (CH4), diborone (B2H6) and nitrogen (N2) concentrations on the structure and photoelectron emission properties of chemical vapor deposition (CVD) polycrystalline diamond films were studied. The diamond films were grown on single-crystal Si substrates using the hot-tungsten filament CVD technique. Raman spectroscopy and x-ray photoelectron spectroscopy (XPS) were used to characterize the different forms of carbon in the films, and the fraction of sp3 carbon to sp3 plus sp2 carbon at the surface of the films, respectively. Scanning electron microscopy (SEM) was used to characterize the surface morphology of the films. The photoelectron emission properties were determined by measuring the energy distributions of photoemitted electrons using ultraviolet photoelectron spectroscopy (UPS), and by measuring the photoelectric current as a function of incident photon energy.
Date:
August 1998
Creator:
Akwani, Ikerionwu Asiegbu
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of a Technology Enriched Learning Environment on Student Development of Higher Order Thinking Skills
The problem for this study was to enhance the development of higher order thinking skills and improve attitudes toward computers for fifth and sixth grade students. The purpose of this study was to determine the impact of a Technology Enriched Classroom on student development of higher order thinking skills and student attitudes toward the computer. A sample of 80 sixth grade and 86 fifth grade students was tested using the Ross Test of Higher Cognitive Processes. The Ross Test was selected because of its stated purpose to judge the effectiveness of curricula or instructional methodology designed to teach the higher-order thinking skills of analysis, synthesis and evaluation as defined by Bloom. The test consisted of 105 items grouped into seven subsections. In addition, the students were surveyed using the Computer Attitude Questionnaire developed by the Texas Center for Educational Technology. The questionnaire assessed sixty-five questions combined to measure eight attitudes.
Date:
May 1998
Creator:
Hopson, Michael H. (Michael Hugh)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Experimental Analysis of Self-injury With and Without Protective Equipment
Outcomes of experimental analyses during which protective equipment (PE) was placed on three participants were compared to those during which PE was not provided to them. Experimental analysis conditions were presented using a multielement format, and the effects of PE were evaluated using a withdrawal design. Results of experimental analysis without PE suggested that self-injurious behavior (SIB) was maintained by negative reinforcement for two participants and nonsocial mechanisms for the third participant. However, SIB was eliminated either immediately or eventually for all participants when PE was provided during experimental analysis. Thus, outcomes of assessments with PE did not match those without PE, and no conclusion about variables associated with SIB could be drawn from experimental analyses with PE alone. Therefore, the present findings do not support the use of PE as an alternative to standard methods for conducting experimental analysis (i.e., without PE).
Date:
December 1998
Creator:
Le, Duy D. (Duy Dang)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Ecological Association Between the Red-Cockaded Woodpecker and Southern Pine Beetle in the Homochitto National Forest: a Geographic Information System Approach
Since the introduction of management practices by the Forest Service to stabilize red-cockaded woodpecker (RCW) populations, the number of cavity trees killed by southern pine beetles (SPB) has increased. A model of the landscape ecology of RCW and SPB in the Homochitto National Forest was created using data collected from the Forest Service and Global Atmospherics. The conclusions of the study were that the RCW and SPB utilize the same type of habitat and the stand hazard maps are an accurate means of determining the locations of SPB infestations. The functional heterogeneity maps created for the SPB and RCW would be useful predictors of future occurrences of either species if complete data were obtained.
Date:
December 1998
Creator:
Skordinski, Karen R. (Karen Renee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Determinants of Federal Spending for the Administration of Justice
This study develops and empirically tests a model of the determinants of federal spending for crime-fighting policies. An inter-disciplinary approach to building the model is utilized that merges ideas from budgeting, policy analysis and criminology. Four factors hypothesized to impact federal spending for the administration of justice are operationalized as eight variables and tested using ordinary least squares regression analysis on time series data. The factors hypothesized to impact federal spending in this area are economic constraints imposed on government spending, the ideological makeup of Congress and the president, the actual crime rate, and the public's attitude toward crime. Five of the eight variables demonstrated statistical significance at the.10 level or better.
Date:
December 1998
Creator:
Gabriano, Gina
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Brittle and Ductile Behavior in Carbon Nanotubes
Article discussing research on the response of carbon nanotubes to a tensile load.
Date:
November 23, 1998
Creator:
Buongiorno Nardelli, Marco; Yakobson, Boris I. & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
Lip-Lip Interactions and the Growth of Multiwalled Carbon Nanotubes
Article on lip-lip interactions and the growth of multiwalled carbon nanotubes.
Date:
January 12, 1998
Creator:
Buongiorno Nardelli, Marco; Brabec, Charles; Roland, Christopher & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
The Relationship between Privatization, Culture, Adoption of International Accounting Standards, and Accounting in Egypt
This study explores how the Egyptian socioeconomic factors impacted the implementation of International Accounting Standards (IASs) in Egypt. Prior research concluded that developing nations have special needs when it comes to accounting and financial reporting and recommended nation-specific analysis. The author adapts Gray's (1988) model, which connects Hofstede's cultural dimensions with accounting practice, to fit the Egyptian environment.
Date:
December 1998
Creator:
Dahawy, Khaled M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Peer Mediation: an Empirical Exploration Empowering Elementary School Children to Resolve Conflicts Constructively
Conflict is inevitable in school and in life. Many children lack skills necessary to resolve daily conflicts constructively. Without knowledge of positive ways to manage conflicts, violence may result. Limited research suggests that involvement in a peer mediation program may have a positive influence on children. This study assessed effects peer mediation training and mediation experience had on student mediators. The pretest-posttest, control-group, and quasi-experimental study investigated the effects of a year long peer mediation program implemented in a suburban elementary school.
Date:
August 1998
Creator:
Link, Kathleen Elizabeth Barbieri
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Circumfusion: a Composition for Real-Time Computer Music Spatialization System
Two of the leading methodologies for spatializing audio over multiple channels include non-real-time multi-track tape and variations of real-time systems that often involve complex configurations of hardware. Of the latter, composers relying on MIDI as a control source have used pairs of sound modules, effects units and automation capable mixers to achieve spatialization over four loudspeakers. These systems typically employ intensity panning, Doppler shifts and reverberation. The present research details the development of a compact spatialization system using a MAX patch controlling a Kurzweil K2500 sampler. This system supports real-time diffusion of up to six simultaneous sound files over eight loudspeakers while incorporating intensity panning, Doppler shifts, delays and filtering. The MAX patch allows composers to choose from several automatic sound spatialization trajectories or to use the mouse to draw and store their own trajectories for later playback. The piece, Circumfusion, is an eighteen-minute composition of electroacoustic music utilizing this spatialization system.
Date:
August 1998
Creator:
Morgan, Christopher R. (Christopher Robert)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
External Factors and Ethnic Mobilization : A Global Study of the Causes of Military Mobilization among Ethnic Groups, 1945-1995
The main purposes of this study are to elaborate on the concept of ethnic military mobilization and to identify the factors that contribute to its occurrence.
Date:
December 1998
Creator:
Nejad, Jalal K. (Jalal Komeili)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Synthesis of the Personal and the Political in the Works of May Stevens
This thesis is an investigation of the way in which the painter May Stevens (b. 1924) synthesizes her personal experiences and political philosophy to form complex and enduring works of art. Primary data was accumulated through an extended interview with May Stevens and by examining her works on exhibit in New York and Boston. An analysis of selected works from her "Big Daddy" and "Ordinary/Extraordinary" series revealed how her personal feelings about her own family became entwined with larger political issues. As an important member of the feminist art movement that evolved during the 1970s, she celebrated this new kinship among women in paintings that also explored the contradictions in their lives. In more recent work she has explored complex social issues such as teenage prostitution, sexism, and child abuse in a variety of artistic styles and media. This study investigates how May Stevens continues to portray issues of international significance in works that consistently engage the viewer on a personal, almost visceral level.
Date:
May 1998
Creator:
Abbott, Janet Gail
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Characterization of Aspartate Transcarbamoylase and Dihydroorotase in Moraxella Catarrhalis
Bacterial aspartate transcarbamoylases (ATCase's) are divided into three classes that correspond to taxonomic relationships within the bacteria. The opportunistic pathogen Moraxeila catarrhalis has undergone several reclassifications based on traditional microbiological criteria. The previously uncharacterized ATCase from M. catarrhalis was purified to homogeneity and its chemical properties characterized. The ATCase from M. catarrhalis is a class C ATCase with an apparent molecular mass of 480-520 kDa. The M. catarrhalis ATCase is a dodecomer composed of six 35 kDa polypeptides and six 45 kDa polypeptides. The enzyme has an unusually high pH optimum of greater than pH 10. The enzyme exhibited hyperbolic kinetic with a Km for aspartate of 2 mM. A single, separate 78 kDa dihydroorotase from M. catarrhalis was identified and it was not associated with ATCase. These data support the reclassification of M. catarrhalis out of the Neisseriaceae family.
Date:
May 1998
Creator:
Fowler, Michael A. (Michael Allen), 1961-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
"The Best Stuff Which the State Affords": a Portrait of the Fourteenth Texas Infantry in the Civil War
This study examines the social and economic characteristics of the men who joined the Confederate Fourteenth Texas Infantry Regiment during the Civil War and provides a narrative history of the regiment's wartime service. The men of the Fourteenth Infantry enlisted in 1862 and helped to turn back the Federal Red River Campaign in April 1864. In creating a portrait of these men, the author used traditional historical sources (letters, diaries, medical records, secondary narratives) as well as statistical data from the 1860 United States census, military service records, and state tax rolls. The thesis places the heretofore unknown story of the Fourteenth Texas Infantry within the overall body of Civil War historiography.
Date:
December 1998
Creator:
Parker, Scott Dennis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of an Experimentally-Induced Bodily Focus Experience on a Psychotherapist during a Psychotherapy Session
The purpose of this study is to contribute to the current process research by investigating a psychotherapist's experience during psychotherapy. Massage therapy and relaxation therapy were used to manipulate psychotherapist's bodily focus, physiology, and affective state. Topics discussed include: the bodily focus of the therapist, neurobiological models of experience, mind-body boundary issues, and a present-time focus. Doctoral level Counseling and Clinical graduate students were used as participants.
Date:
August 1998
Creator:
Koehler, Gregory C. (Gregory Charles)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Social Validation of Intervention Procedures for Emotionally Disturbed Students : Effects on Regular Education Students
The purpose of this study was to explore regular education student perceptions of the effects of implementing behavioral interventions for seriously emotionally disturbed students (SED) in the regular classroom. Student perceptions of classroom friction or disruptiveness, apathy, and general enjoyment or satisfaction were evaluated. It was predicted that regular education students would report more classroom friction, increased apathy, and less satisfaction when interventions were implemented in the regular classroom for a target SED student.
Date:
December 1998
Creator:
Thomson, Marty C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Responses of Cultured Neuronal Networks to the Cannabinoid Mimetic Anandamide
The effects of cannabinoid agonists on spontaneous neuronal network activity were characterized in murine spinal cord and auditory cortical cultures with multichannel extracellular recording using photoetched electrode arrays. Different cultures responded reproducibly with global decreases of spiking and bursting to anandamide and methanandamide, but each agonist showed unique minor effects on network activity. The two tissues responded in a tissue-specific manner. Spontaneous activity in spinal tissue was terminated by 1 μM anandamide and 6.1 μM methanandamide. Cortical activity ceased at 3.5 μM and 2.8 μM respectively. Irreversible cessation of activity was observed beyond 8 μM for both tissues and test substances. Palmitoylethanolamide, demonstrated that CB2 receptors were not present or not responsive. However, the data strongly suggested the presence of CB1 receptors.
Date:
May 1998
Creator:
Morefield, Samantha I. (Samantha Irene)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparative Study of the Impact of the Total Quality Management Program on Exit Level Texas Assessment of Academic Skills Scores
The management style being used by school personnel in Texas and across the nation today is predominately that of a bureaucracy. This model was organized around the industrial revolution that was exercising authority at the turn of the century. Writers and researchers have pointed out that such a model is not capable of providing students the knowledge and skills they will need to enter an increasingly demanding society. One management style relatively new to the educational arena today is that of Total Quality Management. This study reports the results of the impact of the training in those principles by measurement of student test scores.
Date:
December 1998
Creator:
Maulding, Wanda Smith
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Unearthing the Spiritual Message in Edward Abbey's Desert Solitaire
Unearthing Edward Abbey's spiritual philosophy is not an easy task. One must sift through Abbey's humor, sort through Cactus Ed's flamboyant character, look under the veneer of this character, and beyond Abbey's overt objective of convincing readers to defy the destruction of wilderness, and only then does the spiritual philosophy of Abbey become visible. To understand his perception of spirituality, one must define what constitutes a mystic and determine what American theological philosophies mystics tend to adopt. Once these are defined, one can apply those principles to Abbey's Desert Solitaire, and determine that Abbey is a nature mystic who adheres to the ecocentric based immanence theology. This theology is contrary to the Judeo-Christian based emanation theology which supports anthropocentricism and resourcism.
Date:
August 1998
Creator:
Jacobs, Pamela
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A History of Contemporary Independent Film Marketing in the United States (1989-1998)
This study explores the reasons for the rise in independent film's popularity, which have created a unique Hollywood phenomenon, the successful "mini-major" independent studio, dedicated to both art and commerce. Chapters cover the history of independent film, characteristics of both independent and mainstreamfilms with regards to financing, acquisition, distribution and marketing, trends within independent film in the late 1980s and 1990s, crucial distributors and landmark independent films, and key growth areas in the future for independent film.
Date:
August 1998
Creator:
Ahearn, John P. (John Patrick)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library