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Question of Honor (open access)

Question of Honor

My thesis, Question of Honor, addresses the premise of women's lack of choice in relation to men's honor, and vengeance; concepts that are closely connected to the oppressive world of women in Pakistan. These works deal with concepts of purity and minor transgressions that have an impact on the lives of women in relation to family names and the associative feelings of humiliation linked to men. The subtle nuances of women and their reactions to oppression give a strong emotive content to the work.
Date: May 2004
Creator: Agha, Anila Quayyum
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effects of Rate Contingent Consequences and Charting on Response Rates for Two Children with Autism. (open access)

The Effects of Rate Contingent Consequences and Charting on Response Rates for Two Children with Autism.

This study investigated the effects of a precision teaching package on response rates of children with autism. Prior to both experiments a preference assessment was conducted to identify high preference activities for each participant. Experiment 1 investigated whether response rates would shift as a function of rate-contingent consequences during an academic task. Different activities were associated with different rates of responding. The experimental package of 1 minute timings, rate contingent consequences, and charting was successful in increasing the rates of responding when the most highly preferred activity was associated with high rates of responding. When the contingencies were switched and the most highly preferred activity was contingent on lower rates of responding, the participant's responding did not decrease. Experiment 2 was an attempt to replicate the results of Experiment 1 using a multiple baseline across tasks. The experimental package was not successful in increasing the rate of responding.
Date: May 2004
Creator: Berman, Christine M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Empirical Investigation of Portfolios with Little Idiosyncratic Risk (open access)

An Empirical Investigation of Portfolios with Little Idiosyncratic Risk

The objective of this study is to answer the following research question: How large is a diversified portfolio? Although previous work is abundant, very little progress has been made in answering this question since the seminal work of Evans and Archer (1968). This study proposes two approaches to address the research question. The first approach is to measure the rate of risk reduction as diversification increases. For the first approach, I identify two kinds of risks: (1) risk that portfolio returns vary across time (Evans and Archer (1968), and Campbell et al. (2001)); and (2) risk that returns vary across portfolios of the same size (Elton and Gruber (1977), and O'Neil (1997)). I show that the times series risk reaches an asymptote as portfolio size increases. Cross sectional risk, on the other hand, does not appears to reach an asymptote as portfolio size increases. The second approach consists of comparing portfolios' performance to a benchmark portfolio that is assumed to be diversified (Statman (1987)). I develop a performance index. The performance index is calculated, for any given test portfolio, as the ratio of the Sharpe-like measure of the test portfolio to the Sharpe-like measure of the benchmark portfolio that is …
Date: May 2004
Creator: Benjelloun, Hicham
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Analysis of Leadership Perceptions Using Multirater Feedback. (open access)

Analysis of Leadership Perceptions Using Multirater Feedback.

Performance improvement intervention begins with assessment. How that assessment is interpreted can mean the difference between success and failure. Previous research of 360-degree feedback instruments has tried to reconcile the differences between multiple rater groups. Rather than searching for agreement, this research proposes to understand the meaning of the differences using multirater feedback. Individuals determine ratings based upon their own perspective and building upon the understanding of rater perspective may result in improved assessments. Data from an existing data set was processed using a second-order CFA in structural equation modeling. Covariance between the second-order factors and rater groups determined the difference in how each rater group perceived the leader.
Date: May 2004
Creator: Bradley, Thomas P.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Maxwell's Equations from Electrostatics and Einstein's Gravitational Field Equation from Newton's Universal Law of Gravitation Using Tensors (open access)

Maxwell's Equations from Electrostatics and Einstein's Gravitational Field Equation from Newton's Universal Law of Gravitation Using Tensors

Maxwell's equations are obtained from Coulomb's Law using special relativity. For the derivation, tensor analysis is used, charge is assumed to be a conserved scalar, the Lorentz force is assumed to be a pure force, and the principle of superposition is assumed to hold. Einstein's gravitational field equation is obtained from Newton's universal law of gravitation. In order to proceed, the principle of least action for gravity is shown to be equivalent to the maximization of proper time along a geodesic. The conservation of energy and momentum is assumed, which, through the use of the Bianchi identity, results in Einstein's field equation.
Date: May 2004
Creator: Burns, Michael E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Transfer of Mand Topographies to Tact Relations and Vice Versa in Two Vocal-Verbal Children with Autism (open access)

Transfer of Mand Topographies to Tact Relations and Vice Versa in Two Vocal-Verbal Children with Autism

Skinner (1957) suggested that verbal responses learned as mands are not necessarily emitted in tact relations and vice versa. Previous empirical research has found that newly acquired mands and tacts can be functionally independent. The present study investigated 1) whether novel responses taught in mand relations would be emitted as tacts when opportunity for tacting was presented; 2) whether novel responses taught in tact relations would be emitted as mands when opportunity for manding was presented; and 3) whether the size of pre-experimental mand and tact repertoires affected the rate of acquisition and/or transfer. Two vocal-verbal children with autism were taught three novel responses as mands and three other responses as tacts. Mand topographies transferred to tact relations and tact topographies transferred to mand relations for both participants. Overall acquisition as well as transfer of mands and tacts was faster for the participant with an entering repertoire of approximately 175 mands and 175 tacts than for the participant with a repertoire of approximately 100 mands and 100 tacts.
Date: May 2004
Creator: Castellani, Jill E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Clockwork Plums (open access)

Clockwork Plums

Based on a story by Joshua Forehand with additional lyrics by Joshua Bradford, Clockwork Plums is an original musical work that integrates techniques and ideas from composers and different cultures. The accompanying essay about the work includes a summary of the story, "Clockwork Plums," some historical background covering 30 years of pop music, an analysis focusing on the use of African and Reichian compositional devices, and discussion about controlled improvisation and use of the voice as compositional tools. The music consists of three sections scored for 5 voices (lead male vocalist and SATB), flute (doubling tenor saxophone), Bb clarinet (doubling baritone saxophone), violin, cello, piano, electronic keyboard, electric guitar, electric bass, drum set, and percussion.
Date: May 2004
Creator: Bradford, Joshua
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Historical Survey of the Euphonium and Its Future in Non-Traditional Ensembles Together with Three Recitals of Selected Works by Jan Bach, Neal Corwell, Vladimir Cosma, and Others (open access)

A Historical Survey of the Euphonium and Its Future in Non-Traditional Ensembles Together with Three Recitals of Selected Works by Jan Bach, Neal Corwell, Vladimir Cosma, and Others

The euphonium has been a respected member of military bands, brass bands, and civilian concert (wind) bands since its invention in 1843. These bands were very visible to the public, and often performed popular music of the day. Since then, the euphonium has had occasional use in orchestral works, jazz, and in brass chamber groups as well. However, by the middle of the 20th century, its traditional use as an instrument of the wind band resulted in a prevailing attitude of the music world toward the euphonium as an instrument strictly for that purpose. This attitude, along with changing popular tastes in music, has over time caused professional opportunities for euphoniumists to become very limited. This lack of public expose for the instrument has therefore resulted in people outside of wind band experience being unaware of the euphonium's existence. There have been, however, positive signs in the last thirty years that changes are taking place in prevailing attitudes toward the euphonium. The formation of the Tubists Universal Brotherhood Association (renamed the International Tuba Euphonium Association in 2000) as a supportive professional organization, the emergence of the tuba/euphonium ensemble as chamber music, new solo works by major composers, and the use …
Date: May 2004
Creator: Cottrell, Jeffrey S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Contributions of W. A. Criswell to the Establishment and Development of The Criswell College (open access)

Contributions of W. A. Criswell to the Establishment and Development of The Criswell College

This study researched the role of W. A. Criswell as Chancellor of The Criswell College and his involvement in the areas of development, facilities acquisitions, personnel, and academics. This qualitative historical research was taken from Criswell's personal files from 1968 through 2001. W. A. Criswell gave written approval for this review and publication in November 2001. Included in Criswell's files were primary and secondary sources including copies of letters, board meeting minutes, personal notes, catalogs, newspaper articles, sermons, speeches, and other printed forms of communication. All documents pertaining to Criswell's involvement in these four categories were copied and the documents organized in chronological order, by the decade of the 1970s, the 1980s, and 1990s. Primary sources also included personal interviews and telephone interviews with eyewitnesses who were present at the events described, and board meeting minutes. Secondary sources included newspaper articles, magazine articles, national Christian magazines, and journals. Findings were summarized, evaluated and the following research questions answered (1) What was the purpose for establishing a Christian institution of higher education sponsored by First Baptist Church in Dallas, Texas? (2) What was the rationale for establishing a Christian institution of higher education in an area where a high density of …
Date: May 2004
Creator: Cowan, Gloria
Object Type: Thesis or Dissertation
System: The UNT Digital Library
"Only Connect": A Journey of Teaching Henrik Ibsen's  A Doll House to Play Analysis Students (open access)

"Only Connect": A Journey of Teaching Henrik Ibsen's A Doll House to Play Analysis Students

This work examines the author's experience in teaching A Doll House by Henrik Ibsen to students in the course Play Analysis, THEA 2440, at the University of North Texas in the Fall 2003 and Spring 2004 semesters. Descriptions of the preparations, presentations, student responses, and the author's self-evaluations and observations are included. Included as appendices are a history of Henrik Ibsen to the beginning of his work on A Doll House, a description of Laura Kieler, the young woman on whose life Ibsen based the lead character, and an analysis outline form that the students completed for the play as a requirement for the class.
Date: May 2004
Creator: Davis, Dena Michelle
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Bacterial Cyanide Assimilation: Pterin Cofactor and Enzymatic Requirements for Substrate Oxidation (open access)

Bacterial Cyanide Assimilation: Pterin Cofactor and Enzymatic Requirements for Substrate Oxidation

Utilization of cyanide as the sole nitrogen source by Pseudomonas fluorescens NCIMB 11764 (Pf11764) occurs via oxidative conversion to carbon dioxide and ammonia, the latter satisfying the nitrogen requirement. Substrate attack is initiated oxygenolytically by an enzyme referred to as cyanide oxygenase (CNO), which exhibits properties of a pterin-dependent hydroxylase. The pterin requirement for Pf11764 CNO was satisfied by supplying either the fully (tetrahydro) or partially (dihydro) reduced forms of various pterin compounds at catalytic concentrations (0.5 µM). These compounds included, for example, biopterin, monapterin and neopterin, all of which were also identified in cell extracts. A related CNO-mediated mechanism of cyanide utilization was identified in cyanide-degrading P. putida BCN3. This conclusion was based on (i) the recovery of CO2 and NH3 as enzymatic reaction products, (ii) the dependency of substrate conversion on both O2 and NADH, and (iiii) utilization of cyanide, O2 and NADH in a 1:1:1 reaction stoichiometry. In contrast to findings reported for Pf11764, it was not possible to demonstrate a need for exogenously added pterin as a cofactor for the PpBCN3 enzyme system. However, results which showed that cells of PpBCN3 contained approximately seven times the amount of pterin as Pf11764 (of which a significant portion …
Date: May 2004
Creator: Dolghih, Elena
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Performance comparison of data distribution management strategies in large-scale distributed simulation. (open access)

Performance comparison of data distribution management strategies in large-scale distributed simulation.

Data distribution management (DDM) is a High Level Architecture/Run-time Infrastructure (HLA/RTI) service that manages the distribution of state updates and interaction information in large-scale distributed simulations. The key to efficient DDM is to limit and control the volume of data exchanged during the simulation, to relay data to only those hosts requiring the data. This thesis focuses upon different DDM implementations and strategies. This thesis includes analysis of three DDM methods including the fixed grid-based, dynamic grid-based, and region-based methods. Also included is the use of multi-resolution modeling with various DDM strategies and analysis of the performance effects of aggregation/disaggregation with these strategies. Running numerous federation executions, I simulate four different scenarios on a cluster of workstations with a mini-RTI Kit framework and propose a set of benchmarks for a comparison of the DDM schemes. The goals of this work are to determine the most efficient model for applying each DDM scheme, discover the limitations of the scalability of the various DDM methods, evaluate the effects of aggregation/disaggregation on performance and resource usage, and present accepted benchmarks for use in future research.
Date: May 2004
Creator: Dzermajko, Caron
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Concept of Collision Strength and Its Applications (open access)

The Concept of Collision Strength and Its Applications

Collision strength, the measure of strength for a binary collision, hasn't been defined clearly. In practice, many physical arguments have been employed for the purpose and taken for granted. A scattering angle has been widely and intensively used as a measure of collision strength in plasma physics for years. The result of this is complication and unnecessary approximation in deriving some of the basic kinetic equations and in calculating some of the basic physical terms. The Boltzmann equation has a five-fold integral collision term that is complicated. Chandrasekhar and Spitzer's approaches to the linear Fokker-Planck coefficients have several approximations. An effective variable-change technique has been developed in this dissertation as an alternative to scattering angle as the measure of collision strength. By introducing the square of the reduced impulse or its equivalencies as a collision strength variable, many plasma calculations have been simplified. The five-fold linear Boltzmann collision integral and linearized Boltzmann collision integral are simplified to three-fold integrals. The arbitrary order linear Fokker-Planck coefficients are calculated and expressed in a uniform expression. The new theory provides a simple and exact method for describing the equilibrium plasma collision rate, and a precise calculation of the equilibrium relaxation time. It generalizes …
Date: May 2004
Creator: Chang, Yongbin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Mary/merry and horse/hoarse: Mergers in Southern American English (open access)

Mary/merry and horse/hoarse: Mergers in Southern American English

Phonetic mergers in American English have been studied throughout the last half century. Previous research has contributed social and phonetic explanations to the understanding of front and back vowel mergers before /l/, front vowel mergers before nasals and phonetically unconditioned back vowel mergers. Using data from the Linguistic Atlas of the Gulf States (LAGS) and the Linguistic Atlas of the Middle and South Atlantic States (LAMSAS), this thesis examines the spread of the front vowel mergers in Mary and merry and the back vowel mergers in horse and hoarse. The two complementary sources of data allow for a social and phonetic approach to the examination of the merger.
Date: May 2004
Creator: Ehrhardt, Brooke
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Performer's Analysis of Maurice Ravel's  Chansons madécasses: A Lecture Recital, Together with Three Recitals of Selected Works of B. Britten, R. Schumann, S. Barber, T. Pasatieri, F. Poulenc, G. Verdi, T. Arne, and Others (open access)

A Performer's Analysis of Maurice Ravel's Chansons madécasses: A Lecture Recital, Together with Three Recitals of Selected Works of B. Britten, R. Schumann, S. Barber, T. Pasatieri, F. Poulenc, G. Verdi, T. Arne, and Others

In his song cycle, Chansons madécasses (1926), a chamber work for voice, piano, flute, and cello, Maurice Ravel combines twentieth-century musical experimentation and exoticism with the late nineteenth-century style characteristics present in the vocal elements and instrumentation. Because early twentieth-century music appears to be closely connected to modern concerns, performers may tend to dismiss the style and technique of the early twentieth century as simply "old-fashioned" rather than examine and consider those elements as resources and valuable tools for interpreting and presenting authentic performances. The focus of this research includes a discussion of the historical, social, and textual implications of the music and poetry; a formal musical analysis of the work, including comparisons of an early twentieth-century, mid-century, and late twentieth-century recordings with regard to the use of vibrato and portamento in the voice, cello, and flute; and an examination of Chansons madécasses for elements of authentic Malagasy music and poetry. The paper also suggests methodologies for performance practice which reflect the results of these analyses. The beginnings of the rejection of traditional form - harmonic, rhythmic, and melodic structures - found in the early part of the century began to free composers and performers to explore musical presentations that …
Date: May 2004
Creator: Ellis, Diana Lea
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Sunlight readability and luminance characteristics of light-emitting diode push button switches. (open access)

Sunlight readability and luminance characteristics of light-emitting diode push button switches.

Lighted push button switches and indicators serve many purposes in cockpits, shipboard applications and military ground vehicles. The quality of lighting produced by switches is vital to operators' understanding of the information displayed. Utilizing LED technology in lighted switches has challenges that can adversely affect lighting quality. Incomplete data exists to educate consumers about potential differences in LED switch performance between different manufacturers. LED switches from four different manufacturers were tested for six attributes of lighting quality: average luminance and power consumption at full voltage, sunlight readable contrast, luminance contrast under ambient sunlight, legend uniformity, and dual-color uniformity. Three of the four manufacturers have not developed LED push button switches that meet lighting quality standards established with incandescent technology.
Date: May 2004
Creator: Fitch, Robert J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Ghosts and Lovers (open access)

Ghosts and Lovers

Ghosts and Lovers is a collection of short stories told from the points-of-view of four related characters. Travis is a bisexual restaurant owner who fears commitment and longs for the idealistic version of love that he remembers from his past. Ezra, his boyfriend, is an artist struggling to accept the inherent imperfections of life. Travis's ex-girlfriend, Beth, attempts to come to terms with the life that she has chosen for herself. Her husband, Richard, deals with feelings of helplessness as he watches the events of his life unfold before him. By depicting the events of the story from multiple perspectives, the collection attempts to create a more objective view of reality than is ordinarily possible in fiction. An introductory preface examines the role of unreliable narrators and how reality is presented in fiction.
Date: May 2004
Creator: Federer, Lisa M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Effects of Methanol, Atrazine, and Copper on the Ultrastructure of Pseudokirchneriella Subcapitata (Selenastrum Capricornutum). (open access)

Effects of Methanol, Atrazine, and Copper on the Ultrastructure of Pseudokirchneriella Subcapitata (Selenastrum Capricornutum).

The toxicity of methanol, atrazine, and copper to Pseudokirchneriella subcapitata (Korshikov) Hindák historically referred to as Selenastrum capricornutum Printz were determined following 96 hrs growth in a modified Goram's growth media. Methanol and atrazine inhibited fluorescence readings in the cultures by 50% (IC50) at concentrations of 2% and 82 µg/l respectively. These toxicity values compared favorably to other published reports. The IC50 for copper was 160 µg/l which is substantially higher than reported values. This is understandable because of the high chelating capacity of Goram's media. The use of stereologically derived relative volume in the chloroplasts, mitochondria, lipid bodies, phosphate bodies, and nucleus was investigated to determine if it could be used as a sensitive endpoint in toxicity tests. The volume fractions for the chloroplasts and mitochondria were normally distributed in control cells while the nuclei, phosphate bodies, and lipid bodies were not. The chloroplasts were the most dominate organelle occupying a mean relative volume of 46% and mitochondria occupied a mean relative volume of 3%. The nucleus and phosphate bodies occupied a median relative volume of 7% and 2% respectively. The lipid bodies were rare in section profile and no meaningful median relative volume could be calculated. Up to …
Date: May 2004
Creator: Garrett, David C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Op. 34: Evidence of Arnold Schoenberg's Musikalische Gedanke (open access)

Op. 34: Evidence of Arnold Schoenberg's Musikalische Gedanke

Composition for Arnold Schoenberg is a comprehensible presentation of a musical idea (musikalische Gedanke); the totality of a piece represents the idea. For tonal works, he defines Gedanke as a process of resolving the "tonal relation" or "tonal problem." Contrary to the numerous tonal examples illustrating the notion of Gedanke, Schoenberg hardly expounds on the Gedanke principle for his atonal and twelve-tone repertoires. This study reevaluates Schoenberg's compositional philosophy and aesthetics including Gedanke, comprehensibility, Grundgestalt, and developing variation in light of his compositional practices in Begleitungsmusik zu einer Lichtspielszene, Op. 34. Although Schoenberg denies the existence of a tonal problem and hierarchy among pitches in twelve-tone compositions, the registral placement found in Op. 34 indicates certain functionality assigned to each pitch-class, producing a sense of "departure and return." The approach here elucidates the "idea" of Op. 34, in which the large-scale formal organization unfolds through contextually emphasized tonal relations. This study also explores Schoenberg's concept of the multi-dimensional presentation of a musical idea. Even though Schoenberg's discussion of musical coherence is usually limited to the immediate musical surface, I believe that he was also aware of an extended realization of foreground motives in the sense of Heinrich Schenker's "concealed motivic …
Date: May 2004
Creator: Fukuchi, Hidetoshi
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Assessment of the Effectiveness of the CHAMPS/Life Skills Program at the University of North Texas: A Pilot Study (open access)

An Assessment of the Effectiveness of the CHAMPS/Life Skills Program at the University of North Texas: A Pilot Study

This study seeks to determine the effectiveness of the Challenging Athletes Minds for Personal Success (CHAMPS)/Life Skills program at the University of North Texas, as perceived by the student athletes who participate or participated in this program. The study attempts to measure the extent to which the student athletes feel that the program had value; if they received helpful information to support them through their college career to career transition; if the student athletes felt that the program provided them with skills to encourage better self-esteem; and if they believed that the CHAMPS/Life Skills program provided them with leadership and character education. The study, conducted in the Fall of 2003, had 163 respondents. An instrument was developed to determine student athletes' perceptions of the effectiveness of the CHAMPS/Life Skills program at UNT. The instrument consisted of 30 questions using a Likert-type scale. A Mann-Whitney U, a non-parametric t-Test, was utilized to analyze the data. This type of t-Test was used because it is specifically designed to compare the means of the same variable with two different groups and account for non-homogeneous groups. The lack of homogeneity was very likely influenced by the unequal group sizes. Generally, all aspects of the …
Date: May 2004
Creator: Goddard, Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Reactivity of Oxide Surfaces and Metal-Oxide Interfaces: Effects of Water Vapor Pressure on Ultrathin Aluminum Oxide Films, and Studies of Platinum Growth Modes on Ultrathin Oxide Films and Their Effects on Adhesion (open access)

Reactivity of Oxide Surfaces and Metal-Oxide Interfaces: Effects of Water Vapor Pressure on Ultrathin Aluminum Oxide Films, and Studies of Platinum Growth Modes on Ultrathin Oxide Films and Their Effects on Adhesion

The reactivity of oxide surfaces and metal-oxide interfaces play an important role in many technological applications such as corrosion, heterogeneous catalysis, and microelectronics. The focus of this research was (1) understanding the effects of water vapor exposure of ultrathin aluminum oxide films under non-ultrahigh vacuum conditions (>10-9 Torr) and (2) characterization of Pt growth modes on ultrathin Ta silicate and silicon dioxide films and the effects of growth modes on adhesion of a Cu overlayer. These studies were conducted with X-ray photoelectron spectroscopy (XPS). Ni3Al(110) was oxidized (10-6 Torr O2, 800K) followed by annealing (1100K). The data indicate that the annealed oxide film is composed of NiO, Al2O3 and an intermediate phase denoted here as "AlOx". Upon exposure of the oxide film at ambient temperature to increasing water vapor pressure (10-6 - 5 Torr), a shift in both the O(1s) and Al(2p)oxide peak maxima to lower binding energies is observed. In contrast, exposure of Al2O3/Al(polycrystalline) to water vapor under the same conditions results in a high binding energy shoulder in the O(1s) spectra which indicates hydroxylation. Spectral decomposition provides further insight into the difference in reactivity between the two oxide films. The corresponding trends of the O(1s)/Ni0(2p3/2) and Al(2p)/Ni0(2p3/2) spectral …
Date: May 2004
Creator: Garza, Michelle
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Impact of Gender on Domestic Human Rights Abuse (open access)

The Impact of Gender on Domestic Human Rights Abuse

This study develops three models of human rights determinants with the inclusion an untested variable, women in parliaments. The research is conducted on pooled cross-sectional time-series data from 130 countries between 1978 and 1996. For the purpose of analysis the Prais-Winsten Regression method with Panel Corrected Standard Errors was used. The women in power variable is hypothesized to be significantly, positively correlated with a state's propensity toward respect for human rights and is operationalized as percentage of women in parliaments. Three models incorporating as control variables previously identified correlates of human rights abuse were utilized to asses the impact of percentages of women in parliaments on two individual subsets of human rights: personal integrity rights and socio-economic rights. Two models were designed to measure the subset of rights categorized as personal integrity rights using two separate measures: State Department Scores and Amnesty International Scores. Model number three utilized the Physical Quality of Life Index to measure levels of socio-economic rights. Statistical significance was demonstrated by the women in parliament variable in all three models.
Date: May 2004
Creator: Godwin, Donna D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Combat Posttraumatic Stress Disorder: Effect of Intelligence on Symptomatology (open access)

Combat Posttraumatic Stress Disorder: Effect of Intelligence on Symptomatology

The objective of this study was to examine the relations between Posttraumatic Stress Disorder symptomatology and intelligence. Thirty American combat veterans of the Vietnam War, diagnosed with chronic PTSD, were given a psychodiagnostic structured interview. Participants were assessed for Intelligence Quotient as well as the veracity of their self report. The study found that there were significant differences in how participants experienced their PTSD symptoms that were correlated with intelligence. The higher IQ participants reported more frequent and intense guilt related symptoms as well as more intense intrusive recollections. The lower IQ participants experienced more frequent startle responses, more intense problems related to falling or remaining asleep and more frequent affective symptoms related to emotional numbing. Psychologists could use these differences in how PTSD is experienced in treatment planning. It may be useful for therapy to address sleep disturbances and affective numbing in lower IQ individuals. Therapy for higher IQ individuals may be more useful if it addresses feelings of guilt and intrusive recollections.
Date: May 2004
Creator: Crisp, William A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Studies on actomyosin crossbridge flexibility using a new single molecule assay. (open access)

Studies on actomyosin crossbridge flexibility using a new single molecule assay.

Several key flexure sites exist in the muscle crossbridge including the actomyosin binding site which play important roles in the actomyosin crossbridge cycle. To distinguish between these sources of flexibility, a new single molecule assay was developed to observe the swiveling of rod about a single myosin. Myosins attached through a single crossbridge displayed mostly similar torsional characteristics compared to myosins attached through two crossbridges, which indicates that most of the torsional flexibility resides in the myosin subfragment-2, and thus the hinge between subfragment-2 and light meromyosin should contribute the most to this flexibility. The comparison of torsional characteristics in the absence and presence of ADP demonstrated a small but significant increase in twist rates for the double-headed myosins but no increase for single-headed myosins, which indicates that the ADP-induced increase in flexibility arises due to changes in the myosin head and verifies that most flexibility resides in myosin subfragment-2.
Date: May 2004
Creator: Gundapaneni, Deepika
Object Type: Thesis or Dissertation
System: The UNT Digital Library