Examination and Development of the Correlation Consistent Composite Approach (open access)

Examination and Development of the Correlation Consistent Composite Approach

The primary focus of this dissertation is the advancement of the correlation consistent composite approach (ccCA) methodology from its original formulation to the current implementation. Although for large main group test sets which contained both first- (Li-Ne) and second-row (Na-Ar) species ccCA produced chemical accuracy (generally estimated as a deviation of ~1 kcal mol-1 from reliable experiment), the second-row species were smaller in molecular size in comparison to their corresponding first-row species. Previous theoretical work has shown that the accuracy for theoretical calculations involving second-row species (specifically sulfur-containing species) are more basis set dependent than first-row species. Therefore, an analysis of the accuracy of ccCA for sulfur-containing species is warranted. The ccCA methodology is used to evaluate both enthalpies of formation and bond dissociation energies of sulfur-containing species as well as examine isomerization energies for three sets of sulfur-containing isomers. During the testing of ccCA for sulfur-containing species two observations were made which led to further investigations. First, there is no agreement between different theoretical methodologies on the lowest energetic isomer between SNO and NSO. In fact, G3 and G3B3 which differ only by the geometry of the single-point calculations do not agree on the lowest isomer. For this reason, …
Date: December 2010
Creator: Williams, T. Gavin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Primary Compositional Characteristics in the Instrumental Music of Paul Lansky as Demonstrated in Hop (1993) (open access)

Primary Compositional Characteristics in the Instrumental Music of Paul Lansky as Demonstrated in Hop (1993)

This dissertation provides insight into the compositional characteristics of Paul Lansky's instrumental works as demonstrated in Hop (1993). As well, this document intends to make Hop more approachable to performers through a structural, harmonic, and rhythmic analysis. This dissertation presents a brief overview of Lansky's biographical information, discusses background information about Marimolin (the ensemble that premiered the piece), and provides an analysis of Hop. Hop is analyzed with regard to form, harmony, and rhythm. The analysis was conducted through a tonal approach, and harmonies are identified with a lead sheet analysis. Personal interviews with Paul Lansky and marimbist Nancy Zeltsman provided significant insight into Lansky's influences, musical characteristics, as well as other elements pertaining to Hop.
Date: December 2010
Creator: Willie, Eric Jason
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Function of Social Structure in Controlling Violent Crime in Turkey (open access)

The Function of Social Structure in Controlling Violent Crime in Turkey

This dissertation examines the relationship between social structural factors and violent crime rates in Turkey. The relationship between social structural characteristics and violent crime is worth exploring in areas that have attracted little academic attention, such as violent crime in Turkey. In order to understand and prevent the occurrence of crime, researchers have long investigated possible factors related to crime. Examining how crime varies across different regions can help us to understand underlying reasons for violent crime, which is considered one of the enduring problems in society. The findings of this research, to some extent, support the assumptions of social disorganization theory regarding the distribution of violent crime. Both the findings of multivariate and bivariate analysis indicated that poverty, unemployment, and family disruptions may have a positive effect on the distribution of violent crime in the cities of Turkey. The analysis of the effects of the social structure variables through the mediating variables, such as religious institutions, libraries and voluntary associations on the number of violent crimes and violent criminals, to some extent, support the tenets of social disorganization theory. However, all mediating variables cannot mediate all the indirect effects of social structural covariates. In brief, none of their indirect …
Date: December 2010
Creator: Guclu, Idris
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Singing the Republic: Polychoral Culture at San Marco in Venice (1550-1615) (open access)

Singing the Republic: Polychoral Culture at San Marco in Venice (1550-1615)

During the late sixteenth and early seventeenth centuries, Venetian society and politics could be considered as a "polychoral culture." The imagination of the republic rested upon a shared set of social attitudes and beliefs. The political structure included several social groups that functioned as identifiable entities; republican ideologies construed them together as parts of a single harmonious whole. Venice furthermore employed notions of the republic to bolster political and religious independence, in particular from Rome. As is well known, music often contributes to the production and transmission of ideology, and polychoral music in Venice was no exception. Multi-choir music often accompanied religious and civic celebrations in the basilica of San Marco and elsewhere that emphasized the so-called "myth of Venice," the city's complex of religious beliefs and historical heritage. These myths were shared among Venetians and transformed through annual rituals into communal knowledge of the republic. Andrea and Giovanni Gabrieli and other Venetian composers wrote polychoral pieces that were structurally homologous with the imagination of the republic. Through its internal structures, polychoral music projected the local ideology of group harmony. Pieces used interaction among hierarchical choirs - their alternation in dialogue and repetition - as rhetorical means, first to create …
Date: December 2010
Creator: Yoshioka, Masataka
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Software and Hardware-In-The-Loop Modeling of an Audio Watermarking Algorithm (open access)

Software and Hardware-In-The-Loop Modeling of an Audio Watermarking Algorithm

Due to the accelerated growth in digital music distribution, it becomes easy to modify, intercept, and distribute material illegally. To overcome the urgent need for copyright protection against piracy, several audio watermarking schemes have been proposed and implemented. These digital audio watermarking schemes have the purpose of embedding inaudible information within the host file to cover copyright and authentication issues. This thesis proposes an audio watermarking model using MATLAB® and Simulink® software for 1K and 2K fast Fourier transform (FFT) lengths. The watermark insertion process is performed in the frequency domain to guarantee the imperceptibility of the watermark to the human auditory system. Additionally, the proposed audio watermarking model was implemented in a Cyclone® II FPGA device from Altera® using the Altera® DSP Builder tool and MATLAB/Simulink® software. To evaluate the performance of the proposed audio watermarking scheme, effectiveness and fidelity performance tests were conducted for the proposed software and hardware-in-the-loop based audio watermarking model.
Date: December 2010
Creator: Zarate Orozco, Ismael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Culture and Self-Representation in the Este Court: Ercole Strozzi's Funeral Elegy of Eleonora of Aragon, a Text, Translation, and Commentary. (open access)

Culture and Self-Representation in the Este Court: Ercole Strozzi's Funeral Elegy of Eleonora of Aragon, a Text, Translation, and Commentary.

This dissertation presents a previously unedited text by one of the most distinguished- yet neglected-Latin writers of the Italian Renaissance, Ercole Strozzi (1471-1508), a poet and administrator in the court of Ferrara. Under the Este Dukes, Ferrara became a major center of literary and artistic patronage. The Latin literary output of the court, however, has received insufficient scholarly scrutiny. The text is a verse funeral elegy of Eleonora of Aragon (1450-1493), the first Duchess of Ferrara. Eleonora was a remarkable woman whose talents and indefatigable efforts on behalf of her husband, her children, and her state, won her accolades both at home and abroad. She also served as a prototype for the remarkable careers of her two daughters, Isabella d'Este, and Beatrice d'Este, who are celebrated for their erudition and patronage of arts and letters. The text is a mirror of the Estense court and reveals to us how its members no doubt saw themselves, at the very peak of its temporal power and the height of its prestige as a center of cultural creativity. It is also important for the striking portrait it presents of Eleonora. Ercole Strozzi chose to call his poem an epicedium, an ancient minor literary …
Date: December 2010
Creator: Cassella, Dean Marcel
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Henderson Street Bazaar and Other Stories (open access)

Henderson Street Bazaar and Other Stories

The preface, "Against Buses: Charles Baxter and the Contemporary Epiphany" deals with the epiphany as a potential ending to short stories. Baxter holds that epiphanies are trite and without purpose in today's fiction. I argue that Baxter's view, while not without merit, is limiting. Beginning with James Joyce and Katherine Anne Porter and moving to my own work, I discuss how some epiphanies, particularly false ones, can enhance rather than detract from excellent fiction. Five short stories make up the remainder of this thesis: "Dedication," "Taking it with You," "Transition to Flowers," "Profile in Courage," and "Henderson Street Bazaar."
Date: December 2010
Creator: Briseño, J. Andrew
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Key to Unlocking the Secret Window (open access)

The Key to Unlocking the Secret Window

David Koepp's Secret Window was released by Columbia Pictures in 2004. The film's score was written by Philip Glass and Geoff Zanelli. This thesis analyzes transcriptions from six scenes within the film in conjunction with movie stills from those scenes in an attempt to explain how the film score functions.
Date: December 2010
Creator: McConnell, Sarah E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Determinants of Mental Health Problems Among College Students (open access)

Determinants of Mental Health Problems Among College Students

Many college students have reported struggling with mental health problems while dealing with challenging demands of college. The initial theoretical framework for this research was Pearlin's stress process model (SPM). Building on the SPM, the three additional mediating variables of perceived control, meaninglessness, and financial worries were added to create a composite model for the research. Mental health outcomes in the model were measured by a comprehensive range of factors, which included: psychological distress, suicide, substance abuse, and anger. Data were collected from a non-probability convenience sample of 463 undergraduate students attending a large state supported university in the southwestern region of the United States. Among the social status variables measured, being married, female, and white were significant predictors of poor mental health in the sampled college students. Poor self-image, feeling of meaninglessness, and worrying about current and future finances were significant mediating variables. Poor mental health could make individuals overwhelmed and discouraged. This is a formula for failure in college. The results of this study contribute to a better understanding of the correlates of mental health problems among college students. A greater understanding means that families and college administrations will have better ideas about how to intervene to reduce …
Date: December 2010
Creator: Mirbaha-Hashemi, Fariba
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Purification of Cyanide-Degrading Nitrilase from Pseudomonas Fluorescens NCIMB 11764. (open access)

Purification of Cyanide-Degrading Nitrilase from Pseudomonas Fluorescens NCIMB 11764.

Cyanide is a well known toxicant that arises in the environment from both biological and industrial sources. Bacteria have evolved novel coping mechanisms for cyanide and function as principal agents in the biosphere for cyanide recycling. Some bacteria exhibit the unusual ability of growing on cyanide as the sole nitrogen source. One such organism is Pseudomonas fluorescens NCIMB 11764 (Pf11764) which employs a novel oxidative mechanism for detoxifying and assimilating cyanide. A unique complex of enzymes referred to as cyanide oxygenase (CNO) is responsible for this ability converting cyanide to ammonia which is then assimilated. Because one component of the four member CNO complex was previously shown to act on cyanide independent of the other members, its characterization was sought as a means of gaining a better understanding of the overall catalytic mechanism of the complex. Preliminary studies suggested that the enzyme belonged to a subset of nitrilase enzymes known as cyanide dihydratases (CynD), however, a cynD-like gene in Pf11764 could not be detected by PCR. Instead, a separate nitrilase (Nit) linked to cyanide metabolism was detected. The corresponding nit gene was shown to be one of a conserved set of nit genes traced to a unique cluster in bacteria …
Date: December 2010
Creator: Chou, Chia-Ni
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Portrayal of Race by Public and Private University Newspapers (open access)

Portrayal of Race by Public and Private University Newspapers

This study investigated how two college newspapers cover race and how the papers employed racial stereotypes when describing sources. One of newspapers is a student-produced paper at a private university. The other is a student-produced newspaper at a public university. The study conducted content analyses of front-page news stories in both college newspapers. The sources in the story were analyzed for racial stereotypes. Stereotypes were identified based on frames used in modern racism research. A t-test and chi-square were used to compare the coverage of minorities to Whites. Once the quantitative content analysis was completed, I used textual analysis to identify what ways the news stories used stereotypical coverage of minorities. The study used critical media theory.
Date: December 2010
Creator: Hayton, Tasha
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Endocannabinoid System in a Planarian Model (open access)

Endocannabinoid System in a Planarian Model

In this study, the presence and possible function of endocannabinoid ligands in the planarian is investigated. The endocannabinoids ananadamide (AEA) and 2-arachidonoylglycerol (2-AG) and entourage NAE compounds palmitoylethanolamide (PEA), stearoylethanolamide (SEA) and oleoylethanolamide (OEA) were found in Dugesia dorotocephala. Changes in SEA, PEA, and AEA levels were observed over the initial twelve hours of active regeneration. Exogenously applied AEA, 2-AG and their catabolic inhibition effected biphasic changes in locomotor velocity, analogous to those observed in murines. The genome of a close relative, Schmidtea mediterranea, courtesy of the University of Utah S. med genome database, was explored for cannabinoid receptors, none were found. A putative fatty acid amide hydrolase (FAAH) homolog was found in Schmidtea mediterranea.
Date: December 2010
Creator: Mustonen, Katie Lynn
Object Type: Thesis or Dissertation
System: The UNT Digital Library
User Acceptance of North Central Texas Fusion Center System by Law Enforcement Officers (open access)

User Acceptance of North Central Texas Fusion Center System by Law Enforcement Officers

The September 11 terrorist attacks pointed out the lack of information sharing between law enforcement agencies as a potential threat to sound law enforcement in the United States. Therefore, many law enforcement agencies as well as the federal government have been initiating information sharing systems among law enforcement agencies to eradicate the information sharing problem. One of the systems established by Homeland Security is the North Central Texas Fusion Center (NCTFC). This study evaluates the NCTFC by utilizing user acceptance methodology. The unified theory of acceptance and the use of technology is used as a theoretical framework for this study. Within the study, user acceptance literature is examined and various models and theories are discussed. Furthermore, a brief information regarding the intelligence work done by law enforcement agencies are explained. In addition to the NCTFC, several major law enforcement information systems are introduced. The data for this study comes from the users of the NCTFC across the north central Texas region. Surveys and interviews are used to triangulate data. It is found in this study that performance expectancy and effort expectancy are important indicators of system use. Furthermore, outreach and needs assessment are important factors in establishing systems. The results …
Date: December 2010
Creator: Odabasi, Mehmet
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Effects of Plasma, Temperature and Chemical Reactions on Porous Low Dielectric Films for Semiconductor Devices (open access)

Effects of Plasma, Temperature and Chemical Reactions on Porous Low Dielectric Films for Semiconductor Devices

Low-dielectric (k) films are one of the performance drivers for continued scaling of integrated circuit devices. These films are needed in microelectronic device interconnects to lower power consumption and minimize cross talk between metal lines that "interconnect" transistors. Low-k materials currently in production for the 45 and 65 nm node are most often organosilicate glasses (OSG) with dielectric constants near 2.8 and nominal porosities of 8-10%. The next generation of low-k materials will require k values 2.6 and below for the 45 nm device generation and beyond. The continuous decrease in device dimensions in ultra large scale integrated (ULSI) circuits have brought about the replacement of the silicon dioxide interconnect dielectric (ILD), which has a dielectric constant (k) of approximately 4.1, with low dielectric constant materials. Lowering the dielectric constant reduces the propagation delays, RC constant (R = the resistance of the metal lines; C = the line capacitance), and metal cross-talk between wires. In order to reduce the RC constants, a number of low-k materials have been studied for use as intermetal dielectrics. The k values of these dielectric materials can be lowered by replacing oxide films with carbon-based polymer films, incorporating hydrocarbon functional groups into oxide films (SiOCH …
Date: December 2010
Creator: Osei-Yiadom, Eric
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effects of Copying Before, Copying After, and Guessing on Acquisition Rate and Retention (open access)

The Effects of Copying Before, Copying After, and Guessing on Acquisition Rate and Retention

Computer-based instructional programs are being used more frequently in classrooms. While these programs offer many benefits from traditional teaching methods, humans still need to program them. There is inconsistency in the literature regarding the best way to design such programs. The purpose of this study was to evaluate the effects of three training procedures in teaching individuals to type a specified three-letter response in the presence of a corresponding symbol. Results show that the training format that prompted individuals to copy the correct response before the opportunity to respond was more efficient than viewing the correct response after an error, or copying the correct response after an error. A discussion of the results as well as implications for classroom use is also provided.
Date: December 2010
Creator: Pinkelman, Sarah Ellen
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Spatial Analysis of North Central Texas Traffic Fatalities 2001-2006 (open access)

Spatial Analysis of North Central Texas Traffic Fatalities 2001-2006

A traditional two dimensional (planar) statistical analysis was used to identify the clustering types of North Central Texas traffic fatalities occurring in 2001-2006. Over 3,700 crash locations clustered in ways that were unlike other researched regions. A two dimensional (x and y coordinates) space was manipulated to mimic a one dimensional network to identify the tightest clustering of fatalities in the nearly 400,000 crashes reported from state agencies from 2003-2006. The roadway design was found to significantly affect crash location. A one dimensional (linear) network analysis was then used to measure the statistically significant clustering of flow variables of after dark crashes and daylight crashes. Flow variables were determined to significantly affect crash location after dark. The linear and planar results were compared and the one dimensional, linear analysis was found to be more accurate because it did not over detect the clustering of events on a network.
Date: December 2010
Creator: Rafferty, Paula S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Effect of Polyphosphoric Acid on Aging Characteristics of PG 64-22 Asphalt Binder (open access)

Effect of Polyphosphoric Acid on Aging Characteristics of PG 64-22 Asphalt Binder

This research presents the results on an experimental investigation to identify the effect of polyphosphoric acid (PPA) on aging characteristics of an asphalt binder. Addition of PPA to asphalt binders is said to improve performance of flexible pavements. Asphalt binder PG 64-22 in modified and unmodified conditions was subjected to aging in the laboratory using a regular oven and also simulated short term aging using rolling thin film oven (RTFO) test. Aging experiments were conducted to analyze the extent of oxidation in terms of changes in molecular structure of the asphalt binder. These changes were appraised using Fourier transform infrared (FTIR) spectroscopy, dynamic shear rheometer (DSR), and epifluorescence microscopy tests. FTIR was used to determine the changes in major bands with addition of PPA. Stiffness and viscoelastic behaviors of asphalts were determined from the DSR test. The stiffness is measured by calculating the shear modulus, G* and the viscoelastic behavior is measured by calculating the phase angle, sin δ. Epifluorescence microscopy is a tool used to study properties of organic or inorganic substances. The morphological characteristics of PPA modified asphalt samples were observed through epifluorescence microscopy. Epifluorescence microscopy reveals the polymer phase distribution in the asphalt binders. Results of this …
Date: December 2010
Creator: Ramasamy, Naresh Baboo
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Determination of Bioconcentration Potential of Selected Pharmaceuticals in Fathead Minnow, Pimephales promelas, and Channel Catfish, Ictalurus punctatus (open access)

Determination of Bioconcentration Potential of Selected Pharmaceuticals in Fathead Minnow, Pimephales promelas, and Channel Catfish, Ictalurus punctatus

The primary objective of this work was to determine the tissue-specific bioconcentration factors (BCFs) of the selected pharmaceuticals: norethindrone (NET), ibuprofen (IBU), verapamil (VER), clozapine (CLZ) and fenofibrate (FFB) in two freshwater fishes: fathead minnow and channel catfish. BCF tests on fathead followed the standard OECD 42-day test while a 14-day abridged test design was used in catfish exposures. Additional objectives included a) comparing the measured BCFs to the US EPA's BCFWIN model predicted values, b) comparing the BCF results from the standard and reduced tests, and c) prediction of chronic risk of the pharmaceuticals in fish using the human therapeutic plasma concentrations. Each test included uptake and depuration phases to measure tissue-specific kinetic BCFs. The results indicated that all the pharmaceuticals, except IBU, have the potential for accumulation in fish. Estimated BCFs for NET, VER and FFB may not be significant in view of the current regulatory trigger level (BCF ≥ 2000); however, CLZ's BCF in the liver had approached the criterion level. Significant differences were noticed in the tissue-specific uptake levels of the pharmaceuticals with the following general trend: (liver/kidney) > (gill/brain) > (heart/muscle) > plasma. IBU uptake was highest in the plasma. When compared to the measured …
Date: December 2010
Creator: Nallani, Gopinath C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Growth, Structure and Tribological Properties of Atomic Layer Deposited Lubricious Oxide Nanolaminates (open access)

Growth, Structure and Tribological Properties of Atomic Layer Deposited Lubricious Oxide Nanolaminates

Friction and wear mitigation is typically accomplished by introducing a shear accommodating layer (e.g., a thin film of liquid) between surfaces in sliding and/or rolling contacts. When the operating conditions are beyond the liquid realm, attention turns to solid coatings. Solid lubricants have been widely used in governmental and industrial applications for mitigation of wear and friction (tribological properties). Conventional examples of solid lubricants are MoS2, WS2, h-BN, and graphite; however, these and some others mostly perform best only for a limited range of operating conditions, e.g. ambient air versus dry nitrogen and room temperature versus high temperatures. Conversely, lubricious oxides have been studied lately as good potential candidates for solid lubricants because they are thermodynamically stable and environmentally robust. Oxide surfaces are generally inert and typically do not form strong adhesive bonds like metals/alloys in tribological contacts. Typical of these oxides is ZnO. The interest in ZnO is due to its potential for utility in a variety of applications. To this end, nanolaminates of ZnO, Al2O3, ZrO2 thin films have been deposited at varying sequences and thicknesses on silicon substrates and high temperature (M50) bearing steels by atomic layer deposition (ALD). The top lubricious, nanocrystalline ZnO layer was structurally-engineered …
Date: December 2010
Creator: Mensah, Benedict Anyamesem
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Impact of Genetics, Socioeconomic Status, and Lifestyle Factors on Visual Health in an Adult Population (open access)

The Impact of Genetics, Socioeconomic Status, and Lifestyle Factors on Visual Health in an Adult Population

The purpose of this dissertation was to understand how genetics, socioeconomic status (SES), and lifestyle factors influence the development of age-related macular degeneration (AMD), glaucoma, and diabetic retinopathy in an adult population in Dallas County. Two hundred fifty-three older adults participated in this study as the sample. Crosstabulation and binary logistic regression were utilized to analyze the data. Results indicated a disparity among participants' test scores, visual health status, and perceptions of their visual impairment and highlighted the fact that many seniors are not educated about age-related retinal disorders. Furthermore, variables reaching statistical significance were consistent with the literature included race/ethnicity, age, having a family history of both AMD and diabetes, frequency of eye exams, and level of education. The results not consistent with the literature as affecting visual health included health insurance, access to health care, body weight, and smoking status. Recommendations for future study included applied research focusing on determining risk factors, raising awareness, educating, and providing early detection of these diseases among low to middle income Caucasian, African American, and Hispanic older adults.
Date: December 2010
Creator: Mitzel, Gina Marie
Object Type: Thesis or Dissertation
System: The UNT Digital Library
End of Life Care:  African Americans' Disproportionate Use of Hospice (open access)

End of Life Care: African Americans' Disproportionate Use of Hospice

The United States of America is a country composed of various ethnicities. This country is considered to be a multi-cultural society. There are various cultural traditions values, norms and superstitious practices within each ethnic group. Attitudes toward end of life care are complex and vary differently across each ethnic group. This study explored factors that explained African Americans' disproportionate use of hospice. Access to hospice care was address, experience with hospice was explored, and recommendations were provided. This study conducted non-experimental research. The design of this exploratory study was quantitative in nature. A survey approach was utilized to collect data that was statistically analyzed. The important concept was African American disproportionate use of hospice. The variable willingness to use was employed to try to explain African Americans' disproportionate use of hospice. The independent variables African Americans who mistrust formal healthcare providers and knowledge about hospice services were operationalized using multiple indicators. The independent variable experience with hospice services did not use a scale. The research findings supported all three study hypotheses. This research results recommend that an important focus of the future be to counsel persons on the availability of hospice as an option for end-of-life care. Well-structured programs of …
Date: December 2010
Creator: McDonald, Ray
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Eating from the Tree of Knowledge: The Impact of Visual Culture on the Perception and Construction of Ethnic, Sexual, and Gender Identity (open access)

Eating from the Tree of Knowledge: The Impact of Visual Culture on the Perception and Construction of Ethnic, Sexual, and Gender Identity

This study explores the way that visual culture and identity creates understanding about how the women in my family interact and teach each other. In the study issues of identity, liminality, border culture, are explored. The study examines how underrepresented groups, such as those represented by Latinas, can enter into and add to the discourses of art education because the women who participated have learned to maneuver through the world, passing what they have learned to one another, from one generation to the next. Furthermore, the study investigates ways in which visual cues offer a way for the women in my family to negotiate their identity. In the study the women see themselves in signs, magazines, television, dolls, clothing patterns, advertisements, and use these to find ways in which to negotiate the borderlands of the places in which they live. Although the education that occurred was informal, its importance is in creating a portal through which to self reflect on the cultural work of educating.
Date: December 2010
Creator: Peralta, Andrés
Object Type: Thesis or Dissertation
System: The UNT Digital Library
A Quantitative Analysis of the Relationship of a Non-traditional New Student Orientation in an Urban Community College with Student Retention and Grade Point Average Among Ethnic Groups (open access)

A Quantitative Analysis of the Relationship of a Non-traditional New Student Orientation in an Urban Community College with Student Retention and Grade Point Average Among Ethnic Groups

This quantitative study examined relationships of attending a new student orientation program related to student retention and academic success. A research group of 464 students of Tarrant County College Northwest, a community college campus in Fort Worth, Texas, who voluntarily attended a 2-hour pre-semester new student orientation program was compared to a group of 464 students on the same campus who did not attend the program. Comparisons were made with regard to retention and GPA. Ethnic ratios of both groups are 4% Black, 26% Hispanic, 66% White, and 4% other ethnicities. Chi square data analysis was utilized to determine if statistically significant differences relating to student retention existed between the groups. The independent t-test was used to compare means of calculated GPAs between groups. A one-way ANOVA was used to compare the means of GPAs for ethnic sub-groups. The total group and the Black sub-group showed statistically significant higher levels of second-semester retention (total group p = .018; Black sub-group p = .008) and higher calculated GPAs (total group p = .016; Black sub-group p = .019). No statistically significant results were found among Hispanic students.
Date: December 2010
Creator: Martinez, Vesta Wheatley
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Relationship of Service-Learning and Campus Involvement: A Multivariate Look at the Profile of Today's College Student (open access)

The Relationship of Service-Learning and Campus Involvement: A Multivariate Look at the Profile of Today's College Student

Service-learning continues to gain in popularity across the higher education landscape and can be found in most educational institutions. Although more often found in student affairs programming, it is also viewed as a viable pedagogy. Most studies show that service-learning impacts students in various ways: academically, socially and vocationally. The research study employed quantitative methods. It analyzed prediction of participation in community service/service-learning with students' self-assessment on five outcomes: academic skills, social integration, community integration/alumni expectations, connection with the campus community and change in opinions, values and attitudes. A canonical correlation analysis was conducted on data collected on the Profile of Today's College Student administered by NASPA-Student Affairs Administrators in Higher Education. The data represent a random sample (N = 374) of undergraduate students enrolled at a mid-sized, private four-year university located in the south central United States. The study looked for statistical significance as well as employed effect size measures. The study found participation in community service/service-learning predicts on all five factors in the model. Additional analysis incorporated effect size measures to further strengthen the results. The results were both statistically (p < .001) and practically significant (Rc2 = .101). Connection with the campus community and social integration were …
Date: December 2010
Creator: Kittle, Kris J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library