There is a need to understand the relationship between, the traditional 16-week versus an 8-week, and college-level mathematics success rates. This study applied chi-square (χ2) and analysis of variance to compare and contrast which course length of time, 8-weeks or 16-weeks, for college algebra resulted in a higher proportion of students successfully completing the course. In addition, success rates among ethnicities, gender, and age groups were also examined. The population sample for this study was 231 students enrolled in college algebra from fall 2004 through fall 2007. Data was analyzed on four sections of the traditional 16-week courses and four sections of 8-week courses. Success was defined as earning a grade of A, B, or C in the course. The study found that overall there was no significant difference in success rates for the 8-week and 16-week college algebra courses. However, significant differences were found in success rates among Asian, Pacific Islander students enrolled in the 8-week and 16-week courses. No significant differences in success rates were found for White, Non-Hispanic; African-American, and Hispanic, Mexican American students. There was a significant difference in the number of A's, B's, C's, D's and F's among White, Non-Hispanic students, but there was no …

Using the principles of systems analysis as a guide, this study compared two class schedule formats used by Behavior Management and Parenting Services (BMAPS) in order to address the following research questions: 1) What effects do 2 different class formats have on student attrition and appointment keeping? 2) What effects do 2 different class formats have on student outcomes on a pre and posttest assessment? 3) What effects do 2 different class formats have on staff procedures? BMAPS provides parent education to individuals referred by Child Protective Services. The current research included approximately 200 referred clients with an appointment or class scheduled with BMAPS between January 1, 2006 and September 22, 2007. Data was collected by reviewing client files for class attendance and performance records. Results of this study allow BMAPS to enlist the class format that is correlated with better attrition rates and client outcomes.

Density functional (ca, BLYP, BPW91, B3LYP and B3PW91), MP2 and CCSD(T) methods in combination with LANL2DZ or cc-pVxZ-PP (where x=D(double), T(triple) Q(quadruple), and 5(quintuple)) basis sets have been employed in computing electronic transition energies of zinc and cadmium monomers. CCSD(T)/aug-cc-pV5Z-PP combination finds values that are 150 cm-1 from the experimental value for the zinc monomer and 240 cm-1 remove from the cadmium monomer excitation experimental value. These method/basis set combinations are also used to find spectroscopic values (re, De, we, wexe, Be , and Te) that rival experimental values for dimers and excimers. Examples of this can be seen with the CCSD(T)/aug-cc-pV5Z-PP combination phosphorescent emission results. The values found are within 120 cm-1 of the zinc emission energy and 290 cm-1 of the cadmium emission energy. While this combination rigorously models spectroscopic constants for monomers, dimers, and excimers, it does not efficiently model these constants for larger clusters with available modern computational resources. It is important to show spectroscopic trends (bonding, phosphorescent excitation and emissions) as clusters increase as the monomer and dimer emission energies do not model solid state metallophilic interactions and phosphorescence. The MP2/LANL2DZ combinations show qualitative cooperative bonding trends in group oligomers and extended excimers as size …

In this work I present a constructive method for finding critical points of the Ginzburg-Landau energy functional using the method of Sobolev gradients. I give a description of the construction of the Sobolev gradient and obtain convergence results for continuous steepest descent with this gradient. I study the Ginzburg-Landau functional with magnetic field and the Ginzburg-Landau functional without magnetic field. I then present the numerical results I obtained by using steepest descent with the discretized Sobolev gradient.

Mexico's cultural norms have been the subject of repeated inquiries because democratic and authoritarian patterns appear concomitantly. However, few have focused on the potential demographic and contextual sources of these divergent results. This study attempts to clarify the sources of Mexico's political culture, and then determine the extent to which these factors affect political participation. Statistical analysis of a LAPOP dataset from 2006 makes limited progress to this end. The sources of Mexican political culture remain somewhat a mystery, although some intriguing results were found. Most notably, demographic traits appear to have little influence on political culture variables and political participation rates in Mexico. In fact, political culture norms and political participation appears consistent across Mexico's infamous social and economic lines.

This research evaluates the relationship between various individual differences constructs and performance on a past behavior interview (PBI)-one of the most popular forms of personnel selection interviews used today-within a sample of business unit leader level incumbents and applicants from organizations across the United States. Correlation analysis is conducted on the relationship between overall performance on a PBI and four work-related constructs: Experience, Motivation, Personality, and Cognitive Ability. The existing literature on PBIs and the four independent variables is critically reviewed. As limited research has been conducted on the influence of Experience and Motivation on PBI performance, this study makes unique contributions to the literature regarding impact of these two constructs. The major hypotheses stated that Experience and Motivation would yield significant, positive correlations with PBI performance while Personality and Cognitive Ability would not be significantly correlated with PBIs. Results partially supported the hypotheses-Experience, Motivation, and Personality were significantly related to overall PBI score, while Cognitive Ability was not. Implications for the findings as well as suggestions for future research are discussed.

This qualitative action research study examines how critical theory defined and guided my practice as an art teacher educator while I provided inclusion training for seven preservice art teachers during their student teaching. Sources of data included a personal journal, the inclusion curriculum I created for the preservice teachers and questionnaires and interviews. Primary findings indicated that critical theory had a substantive impact on the evolving development of my teaching philosophy, in particular my attention to issues of power redistribution in the classroom and my developing notion of teaching as form of artistry. The findings of this study also indicate that the primary impact of critical theory upon the preservice teachers was the articulation of their personal narratives and its relation to the development of their teaching identities. Further, mentoring these preservice art teachers in critical theory increased their competence in solving educational dilemmas. A primary finding of this study was how significant of a role the supervising or mentor teacher plays in developing preservice teachers' identity. As this is acknowledged, valued and utilized, more collaborative relationships among these stakeholders in the education of the preservice art teacher can be forged. The study provides implications for art teacher educators as …

Etudes and method books played had an important role in teaching technique and musicality for all musicians. Euphonium players have been using pedagogical materials originally written for other brass instruments such as trumpet, cornet, and trombone. Those materials have been very effective in helping euphoniumists learn skills to play idiomatic nineteenth and early twentieth century repertoire. In recent years, many solo pieces for euphonium demanding advanced techniques have been composed. The difficulty of these solo works for euphonium has increased dramatically in the second half of the twentieth century. Traditional etudes and method books do not cover all the necessary techniques to play this modern repertoire. In the last two decades, many collections of etudes have been written specifically for euphonium, and several of them are technically challenging and aimed at advanced euphoniumists. This trend can be seen in the United States, France and England. In this paper, traditional standard pedagogical materials currently used by euphoniumists will be evaluated. Recent publications of pedagogical materials written exclusively for euphonium after 1990 will be introduced, and effective uses of old and new pedagogical materials for current euphonium players will be presented. An annotated list of the latest etudes composed exclusively for euphonium …

Dallas is a unique city whose history has been overshadowed by its elite. The War on Poverty in Dallas, Texas, has been largely overlooked in the historical collective. This thesis examines the War on Poverty, more specifically, Community Action Programs (Dallas County Community Action Committee) and its origin and decline. It also exams race within the federal program and the push for federal funding among the African American and Mexican American communities. The thesis concludes with findings of the politicization of the Mexican American community and the struggle with African Americans for political equality.

The purpose of this study is to frame the cinematic male prostitute as a "fallen angel" to demonstrate that the evolution of the cinematic hustler has paralleled historicized ideological definitions of male homosexuality. Because cultural understandings of male homosexuality frequently reflect Judeo-Christian ideological significations of sin and corruption, the term "fallen angel" is utilized to describe the hustler as a figure who has also succumbed to sin due to his sexual involvement with other men. This study constructs an epochal analysis of eight films that explores the confluence of the social understanding of homosexuality with the cinematic image of the hustler from the mid 1960s through the present. In doing so, this study shows that the image of the cinematic hustler is intricately tied to the image of the male homosexual in material cultures and eras that produce them. A filmography is included.

The preface to this collection of poems, "Memory and The Myth of Lost Truth," explores the physical and metaphysical roles memory plays within poetry. It examines the melancholy frequently birthed from a particular kind poetic self-inquiry, or, more specifically, the feelings associated with recognizing the self's inability to re-inhabit the emotional experience of past events, and how poetry can redeem, via engaging our symbolic intuition, the faultiness of remembered history. Dawn in the Empty House is a collection of poems about the implications of human relationships, self-deception, and memory as a tool for self-discovery.

The discipline of information security management is still in its infancy as evidenced by the lack of empirical scholarly work in this area. Most research within the information security domain focuses on specific technologies and algorithms and how it impacts the principles of confidentiality, integrity, and availability. But, an important area receiving little attention is the antecedents of effective information security management at the organizational level (Stanton, Guzman, Stam & Caldera, 2003). The little empirical research that has been conducted in this area has shown that information security management in many organizations is poor (Baskerville, 1993; Shimeall & McDermott, 1999). Several researchers have identified the need for methods to measure the organization-wide information security posture of organizations (Eloff & Von Solms, 2000; James, 1996). This dissertation attempts to measure the organization-wide information security posture by examining benchmark variables that assess role, planning orientation, and performance structure within the organization. Through this conceptualization of an organization's information security posture, a means is presented to measure overall information security and how it impacts the effective utilization of information security strategies. The presence of the dependent variable, effectiveness, gives academics and practitioners a success measure which can guide more effective decision making in …

The increasing use of polymer-based materials (PBMs) across all types of industry has not been matched by sufficient improvements in understanding of polymer tribology: friction, wear, and lubrication. Further, viscoelasticity of PBMs complicates characterization of their behavior. Using data from micro-scratch testing, it was determined that viscoelastic recovery (healing) in sliding wear is independent of the indenter force within a defined range of load values. Strain hardening in sliding wear was observed for all materials-including polymers and composites with a wide variety of chemical structures-with the exception of polystyrene (PS). The healing in sliding wear was connected to free volume in polymers by using pressure-volume-temperature (P-V-T) results and the Hartmann equation of state. A linear relationship was found for all polymers studied with again the exception of PS. The exceptional behavior of PS has been attributed qualitatively to brittleness. In pursuit of a precise description of such, a quantitative definition of brittleness has been defined in terms of the elongation at break and storage modulus-a combination of parameters derived from both static and dynamic mechanical testing. Furthermore, a relationship between sliding wear recovery and brittleness for all PBMs including PS is demonstrated. The definition of brittleness may be used as …

Experts in traumatology have postulated traumatized children play differently than non-traumatized children. These differences are called posttraumatic play and include the behaviors of intense play, repetitive play, play disruption, avoidant play and negative affect. The purpose of this study is the continued development of the Trauma Play Scale through the addition of a normative sample. The Trauma Play Scale is an observation-based instrument designed to distinguish the play behaviors of children in play therapy with a history of interpersonal trauma when compared to non-traumatized children. The present study compares two samples of children. One group (n=6) currently in play therapy with a history of interpersonal trauma and another group (n=7) considered normally developing (cognitively, emotionally, socially, and physically) by their parents with no known history of interpersonal trauma. Trained raters blind to the trauma history of the children rated a series of eight consecutive video-recorded play therapy sessions for each participant. One-way analysis of variance statistics, including effect sizes were compute to determine the discriminant validity of the Trauma Play Scale. Traumatized children scored significantly higher on the Trauma Play Scale than non-traumatized children on all domains of the scale as well as the overall Average Trauma Play Scale score. …

The conduct of young adults has long been a concern in societies. The primary objective of this study was to gain greater understanding of what influences the deviant behavior of young adults in Turkey. Factors assessed in their background included family rituals, self-esteem, religiosity and deviant behavior. It was expected that levels of family rituals, religiosity, self-esteem and other risk factors would be significantly different between incarcerated youth and youth not incarcerated. Overall, these higher levels of family rituals, religiosity, and self-esteem plus lower levels of other risk factors were expected to negatively affect young people's engagement in deviant behavior in Turkey. Walter Reckless' containment theory provided a framework for this study. The non-probability sample of Turkish youths consisted of 205 incarcerated respondents and 200 college students. Each responded to four survey instruments, the Family Rituals Questionnaire, the Culture Free Self-Esteem Inventory, the Religious Background and Behavior Questionnaire, and a Family Information Inventory. Data were gathered cross-sectionally from January through March of 2007. The incarcerated respondents significantly practices less family rituals and had lower levels of religiosity than the college students but they did not differ significantly on self-esteem. Furthermore, overall participation in family rituals was associated with decreased likelihood …

State digital libraries are manifestations of the diffusion of technology that has provided both access to and delivery of digital content. Whether the content is being accessed and used equitably in K-12 schools has not been assessed. Determining patterns of the diffusion of use across socioeconomic groups in K-12 schools may help measure the success of existing efforts to provide equitable access and use of digital content, and help guide policies and implementation to more effectively address remaining disparities. This study examined use of the Connecticut Digital Library (ICONN) in K-12 schools in Connecticut by determining annual patterns of use per school/district over a four-year period, using transaction log search statistics. The data were analyzed in the paradigm that Rogers (2003) describes as the first and second dimensions of the consequences of an innovation - the overall growth and the equality of the diffusion to individuals within an intended audience --- in this case, students in K-12 schools. Data were compared by school district and the established socioeconomic District Reference Groups (DRGs) defined by the Connecticut State Board of Education. At the time of this study, ICONN used aggregate data (total searches) for K-12 schools, but did not have relevant …

Online/offline signature schemes are useful in many situations, and two such scenarios are considered in this dissertation: bursty server authentication and embedded device authentication. In this dissertation, new techniques for online/offline signing are introduced, those are applied in a variety of ways for creating online/offline signature schemes, and five different online/offline signature schemes that are proved secure under a variety of models and assumptions are proposed. Two of the proposed five schemes have the best offline or best online performance of any currently known technique, and are particularly well-suited for the scenarios that are considered in this dissertation. To determine if the proposed schemes provide the expected practical improvements, a series of experiments were conducted comparing the proposed schemes with each other and with other state-of-the-art schemes in this area, both on a desktop class computer, and under AVR Studio, a simulation platform for an 8-bit processor that is popular for embedded systems. Under AVR Studio, the proposed SGE scheme using a typical key size for the embedded device authentication scenario, can complete the offline phase in about 24 seconds and then produce a signature (the online phase) in 15 milliseconds, which is the best offline performance of any known …

This study investigated what constitutes a teaching curriculum for students with autism in inclusive classrooms in Thailand. The researcher employed 3 qualitative methods: semi-structured interviews, document analysis of curricula and lesson plans, and nonparticipant observations. Six schools were selected as the sites. Participants for interview included 6 principals and 24 teachers. The researcher observed one inclusive classroom for each of the 6 selected schools. The study concentrated on 3 questions: (a) What contributes to appropriate instructional curricula to promote teaching of students with autism in inclusive classrooms in Thailand? (b) What teaching strategies improve the achievement and learning skills of students with autism in inclusive classrooms in Thailand? (c) What are the problems of curricula for teaching students with autism in inclusive classroom in Thailand? Key findings for the research questions were as follows: Common features of effective curricula for teaching students with autism in inclusive classrooms include opportunities, health care, specialized curriculum, students' individual needs and abilities, guidelines of teaching, teacher training and supervision, transition plan, parent involvement, tools/classroom environment, and students' class assignments. The teaching strategies include varying the teaching format (large group, small group, and one-on-one), teaching functional communication (giving direction, close-ended questions or open-ended questions), reinforce …

The purposes of this study were to describe the characteristics of the changing male voice in 4th, 5th and 6th grade students using Cooksey's maturation stages and, to compare the age-of-onset of the male voice change in African American, White, and Hispanic male students. Participants included volunteer 4th (n = 61), 5th (n = 73), and 6th grade male students (n = 63) from 2 urban elementary schools, 5 suburban elementary schools, 1 suburban middle school and 1 urban middle school in the North Texas region. The three ethnic groups represented in this study were: African American (n = 62), White (n = 58), and Hispanic (n = 77). Results indicated that approximately 46% of 4th grade participants, 62% of 5th grade participants, and 67% of 6th grade participants were classified as changing voices. A descriptively larger percentage of African American participants were classified as changing voices than Hispanic and White participants. Also, a larger percentage of African American and Hispanic participants were descriptively classified in the more advanced stages of the voice change than White participants. Urban African American, White, and Hispanic participants had a larger percentage of males classified as changing voices than suburban African American, White, and …

Early detection of Alzheimer's disease (AD) and related dementias in the elderly is critical for improving treatment methods and is a necessary component for improving public health interventions. One of the earliest and most common behavioral syndromes of AD is apathy and is associated with executive dysfunction. Apathy in AD is often misdiagnosed as depression due to an overlap in symptoms. Studies that have found depression to be associated with executive dysfunction have not always controlled for the presence of apathy. The Geriatric Depression Scale (GDS) is a widely used instrument designed to assess depression in the elderly. This study utilized the GDS and a set of standard neuropsychological instruments to investigate the relationship between apathy, depression, and executive functions in individuals with AD and related dementias. The first objective of this study was to determine if apathy has a greater impact on executive functions compared to depression in AD and related dementias. The second objective was to determine the effectiveness of the GDS as a screen for apathy. The results of the analyses did not support the hypotheses. However, exploratory analyses suggested a possible non-linear relationship with apathy and various levels of dementia severity. Exploratory analysis also suggested mean …

The research described in this dissertation examines the possible link between self-regulated learning and LEGO Mindstorms robotics activities in teaching concepts in an introductory university computer programming course. The areas of student motivation, learning strategies, and mastery of course objectives are investigated. In all three cases analysis failed to reveal any statistically significant differences between the traditional control group and the experimental LEGO Mindstorms group as measured by the Motivated Strategies for Learning Questionnaire and course exams. Possible reasons for the lack of positive results include technical problems and limitations of the LEGO Mindstorms systems, limited number and availability of robots outside of class, limited amount of time during the semester for the robotics activities, and a possible difference in effectiveness based on gender. Responses to student follow-up questions, however, suggest that at least some of the students really enjoyed the LEGO activities. As with any teaching tool or activity, there are numerous ways in which LEGO Mindstorms can be incorporated into learning. This study explores whether or not LEGO Mindstorms are an effective tool for teaching introductory computer programming at the university level and how these systems can best be utilized.

The human resources department of a financial institution implemented a multi-component intervention to replace a paper-based hiring system. Organization-wide impacts included changes in the background check operations. To support changes, training was conducted and procedure manuals distributed. Turn time for background checks decreased, but a combination of factors may be responsible. Other metrics are either inconclusive or suggest a confounding variable, yet quality of work did not suffer was maintained. Desired system use was achieved, accompanied by improvements in time-to-fill, voluntary turnover, and quality of applicants. Considerations for analysis and challenges faced are discussed, along with suggestions for further clarification and improvements.

Toy play represents one of many levels of play where children can expand their repertoires and socially interact with peers. Play typically increases in complexity as the child's repertoire develops; however, children with autism often have delayed play skills. The current study investigated the effects of using a 3-component play training procedure (choices, prompting, and consequences), replicated from a previous study, to increase simple and pretend toy play in three boys with autism. Additional measures were used to observe engagement with materials, children, and adults during a 10-minute session. Observations show increased toy play for two participants and increases in overall engagement for all participants. The findings suggest that the teaching program used is replicable across multiple populations, furthering the advancement of evidence-based practices.

This dissertation examined the effects of academic interventions on the development of reading academic competence in fourth grade students who performed at or below grade level as determined by TAKS reading scale scores. Fifty students in fifth grade were chosen to participate in the study from five elementary schools in the Fort Worth Independent School District in Fort Worth, Texas. Only 46 students completed the study. The study was conducted with a control (n = 23) and treatment group (n = 23). The fourth grade students were administered pretests and posttests using the ACES and the fourth grade TAKS reading test. This quantitative study used a quasi-experimental design to answer the research questions. The final data results did not indicate that the implementation of interventions significantly increased TAKS reading scores at the p > .05 level. In addition, there were no significant increases at the p > .05 level between the ACES pretests and posttests. Although there were no significant gains on the TAKS or ACES, there are implications the interventions had a positive effect on teacher perceptions of their students' academic competence and some growth was evident for the treatment groups on both TAKS and ACE.