In urban environments, ozone air pollution, poses significant risks to respiratory health. Fixed site monitoring is the primary method of measuring ozone concentrations for health advisories and pollutant reduction, but the spatial scale may not reflect the current population distribution or its future growth. Moreover, formal methods for the placement of ozone monitoring sites within populations potentially omit important spatial criteria, producing monitoring locations that could unintentionally underestimate the exposure burden. Although air pollution affects all people, the combination of underlying health, socioeconomic and demographic factors exacerbate the impact for socially vulnerable population groups. A need exists for assessing the spatial representativeness and data gaps of existing pollution sensor networks and to evaluate future placement strategies of additional sensors. This research also seeks to understand how air pollution monitor placement strategies may neglect social vulnerabilities and therefore, potentially underestimate exposure burdens in vulnerable populations.

The Dallas-Fort Worth International (DFW) Airport is located in a densely urbanized area with one of the fastest-growing populations in the U.S.A. The airport property includes a large tract of "protected" riparian forest that is unique to the urban surroundings. This dissertation explores variables that influence the benthic macroinvertebrate community structure found in urbanized prairie streams that were initially assessed by the University of North Texas (UNT) Benthic Ecology Lab during four, non-consecutive biomonitoring studies (2004, 2005, 2008, and 2014) funded by the DFW Airport. Additionally, land use analysis was performed using 5-meter resolution satellite imagery and eCognition to characterize the imperviousness of the study area watersheds at multiple scales. Overall, flow conditions and imperviousness at the watershed scale explained the most variability in the benthic stream community. Chironomidae taxa made up 20-50% of stream communities and outperformed all other taxa groups in discriminating between sites of similar flows and urban impairments. This finding highlights the need for genus level identifications of the chironomid family, especially as the dominant taxa in urban prairie streams. Over the course of these biomonitoring survey events, normal flow conditions and flows associated with supra-seasonal drought were experienced. Prevailing drought conditions of 2014 did not …

This dissertation examines the gay rights movement occurring in Dallas, Texas, from the mid-twentieth century to present day by focusing on the work of the Dallas Gay and Lesbian Alliance (DGLA), previously known as the Dallas Gay Political Caucus and the Dallas Gay Alliance. Members of that group utilized a methodology they called "the Dallas Way" that minimized mass protests and rallies in favor of using backroom negotiations with the people who could make the changes sought by the movement. The fact that most of the members of the DGLA were white, professional men aided in the success of their methodology. Particularly useful in this type of effort is the use of legal action. The Dallas community supported several lawsuits that attempted to overthrow various versions of sodomy laws in the Texas Penal Code that criminalized an entire population of gay men and lesbians in the state.

Gender and sexual minorities (GSM) experience considerably worse health outcomes than heterosexual and cisgender people, yet no comprehensive understanding of GSM health exists due to a dearth of research. GSM leaders in Dallas expressed need for a community needs assessment of GSM health. In response to this call, the Center for Psychosocial Health Research conducted a needs assessment of gender and sexual minority health in Dallas (35 interviews, 6 focus groups). Competency was one area highlighted and shared across existing research. Thus, the current study explored how competency impacts gender and sexual minorities' experience of health care in Dallas. We utilized a consensual qualitative research approach to analyze competency-related contents. The meaning and implications of emerging core ideas were explored. These findings were also used to develop a survey instrument.

Makerspaces are a popular, new concept being implemented in public, academic, and school libraries, and as stand-alone spaces. The literature reflects the newness of the topic with a limited number of articles and studies and even less about the users of makerspaces themselves. This study explored information sharing behaviors in the Dallas Makerspace as an informal learning environment and described their preferred method of information transfer from one member to another. It employed a mixed methods methodology using surveys, interviews and observations. The study identified how the rules and policies in place at the makerspace influence the information seeking process and how the Dallas Makerspace exchanges information effectively. Dallas Makerspace is one of the largest non-profit work groups in its size, and this research study answers how information is exchanged in an informal environment.

Recital presented at St. Rita's Catholic Church in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

To date, traditional behavioral interventions have done little to reduce the prevalence and transmission of HIV among African American men who have sex with men (AAMSM), a highly at risk group. Some researchers theorize that the lack of success may be because these interventions do not address contextual factors among AAMSM. Community-based participatory research (CBPR) is one approach to research with the potential to lead to effective interventions in the future. CBPR is a collaborative, mixed-methods and multidisciplinary, approach to scientific inquiry, which is conducted with, and within, the community. The current study follows the CBPR approach to engage and develop a relationship with the African American communities in the Dallas/Fort Worth Metroplex. Contextual issues were discussed in order to identify emerging themes regarding HIV health related issues among AAMSM to provide the groundwork for continued CBPR research and future interventions with AAMSM in the Dallas/Fort Worth Metroplex. To accomplish this goal, researchers began the CBPR process by conducting interviews and focus groups with a sample of approximately 62 (34 from key informant interviews, 28 from focus groups [gender balanced]) AIDS service organization leaders and workers, advocates, medical doctors and community members with first-hand knowledge of HIV health issues in …

This research explored the information needs of patient families and hospital staff at a pediatric hospital system in Dallas, Texas. Library statistics recorded in four hospital libraries from 2011 - 2013 were used to analyze the information requests from patient families and hospital staff. Crosstabulations revealed the extent to which patient families and hospital staff used the libraries to satisfy their information needs. The data showed that patient families used the libraries very differently than hospital staff. Chi-square tests for independence were performed to identify the relationships between the Classification (Patient Family, Hospital Staff) and two descriptors of information needs (Request Type, Resources Used). There were a total of 1,406 information requests analyzed. The data showed that patient families and hospital staff information requests differed greatly in the number of information requests, the type of information requested, the resources used and the time the library staff spent on the requests. Chi-square analyses revealed relationships statistically significant at the p < .05 level; however, the strength of the relationships varied.

The City of Dallas Environmental Education Initiative (EEI) is a hands-on, inquiry-based, K-12 water conservation education program that teaches students concepts about water and specific water conservation behaviors. Few descriptions and evaluations, especially quantitative in nature, of water conservation education programs have previously been conducted in the literature. This research measured the quantitative effects and impacts of the education program on water use in single-family homes in Dallas, Texas. A total of 2,122 students in 104 classrooms at three schools in the Dallas Independent School District received hands-on, inquiry-based water conservation education lessons and the average monthly water use (in gallons) in single-family homes was analyzed to measure whether or not there was a change in water use. The results showed that over a period of one calendar year the water use in the single-family homes within each school zone and throughout the entire research area in this study experienced a statistically significant decrease in water use of approximately 501 gallons per home per month (independent, t-test, p>0.001). Data from this research suggests that EEI is playing a role in decreasing the amount of water used for residential purposes. Additionally, this research demonstrates the use of a quantitative tool by …

This study addresses an individual's performance, relating it to eyesight changes due to the aging of the individual and to color computer screens used for computer-based-instruction not designed specifically for older students. This study determines how existing research in gerontology, human-computer interface, and color use in visual graphics can be applied to the design of computer screen displays containing color text and backgrounds and how various color combinations will affect performance by adult learners forty years of age and older. The results of this research provide software developers and instructional designers guidelines to use when designing computer screen displays for use in instructional computing settings involving older adults.

This research expands on recent sociological studies which maintain that environmental contaminants in America are disproportionately placed in neighborhoods inhabited by minorities and the poor. Prior studies have focused on the predictor variables which identify areas of contamination near residential neighborhoods, yet fail to explore the socio-political and historical factors which contribute to these phenomena. The Environmental Protection Agency's Toxic Release Inventory 1990 database, the Texas Natural Resource Conservation Commission's Annual Report of the Hazardous and Solid Waste Program for 1992, and the U.S. Census Bureau's 1990 Census Data for Dallas County were utilized in pinpointing industries violating toxic release standards. Socio-historical data was obtained from government and historical records and reports, books, and newspaper clippings on Dallas County. Maps and data were obtained from the North Central Texas Council of Governments, and the cities of Dallas and Garland. Chapter I discusses the synergetic forces of capitalism, urban growth, uneven development, and settlement patterns resulting in the distribution of environmental contaminants. Chapter II reviews the literature and presents evidence that race and class are strong predictors of where environmental contaminants are located. Chapter III outlines the data and methods employed. Chapter IV traces the historical development of Dallas County. Chapter …

The problem of this study is to compare the effectiveness of two methods of teaching beginning typewriting in the community college. The two methods are an audio-tutorial approach and the traditional textbook approach. Groups taught by the contrasting methods of instruction were compared on the basis of their production performance and their straight-copy skills after thirty-six class periods of instruction. A comparison was also made of the attrition rate of the two groups.

The purpose of this study was to determine if seminary students, identified as conservative, moderate, or liberal in theological beliefs, were significantly different on the following personality variables: dogmatism, thinking introversion, theoretical orientation, aestheticism, complexity, autonomy, religious orientation, impulse expression, anxiety level, practical outlook, and personal integration. The instrument used to measure theological beliefs was the "Inventory of Theological Beliefs." Dogmatism was measured by the "Rokeach Dogmatism Scale." All other variables were measured by the Omnibus Personality Inventory.

The problem of this study was to develop a proposal for the teaching of poetry for the purposes of contributing to the student's understanding and enjoyment. Surveys and summaries were made of scholarly writings on the junior college student, existential theories of education, and theories of poetry. A bibliography was constructed for each subject from resources of the North Texas State University library. Conclusions from each survey were derived from the selected resources and used to prepare the proposal for instruction of poetry.

Dallas Bible College existed under several names from 1940 to 1985. It was a member of the American Association of Bible Colleges. Although never prosperous, the institution did have an educational niche. This study explores the reasons behind the close of the school in 1985. It surveys the previous history but emphasizes the events from 1983 to 1985. The study investigates the change of mission, location, and name which occurred in the final year of existence. Also included is an extended study of disunity on the board of directors. Exploration is made of reasons why no strong leadership emerged to step in and save the school as it was on its downward path.

Using questionnaire survey generated data from the DWI Probation Program in Dallas County. This study investigated the factors related to the perceived effectiveness of that program from the probationers perspectives. The findings in this study indicate that the perceived effectiveness of the DWI program by the probationers is an area that calls for more research and investigations. The findings have shown that factors related to the perceived effectiveness of the program by the probationers have a profound effect on the efficiency of the program as a whole in order to achieve its stated objectives.

The purpose of this study was to explore the variables of content knowledge, individual attitude, and span of time from initial training with regard to implementation of selected teaching practices in the elementary classroom. The sample consisted of thirty-two elementary classroom teachers who teach reading or mathematics in a large suburban school district in the Dallas Metropolitan Area. After completion of the second day's training in an inservice program on teaching strategies, the teachers were given a test to measure content knowledge of and attitude toward the teaching strategies. The test results were used in determining four groups for follow-up classroom observations four weeks and eight weeks after the in-service sessions. Using three-way analysis of variance, the data were analyzed. Results indicated that teachers with high content knowledge of the teaching strategies implemented these strategies to a greater degree than did teachers with low content knowledge. No significant relationship with regard to implementation was found for the variables of attitude or span of time. It can be concluded that teachers who know the content of inservice training are able to and do implement the training in their classrooms. Of equal significance is the conclusion that teachers who do not know …

The Trinity River flows through the Dallas-Ft. Worth Metroplex in north central Texas where it receives effluents from numerous point sources including seven large regional wastewater treatment facilities. Historically, the Trinity River has been impacted by massive wastewater loadings which often constitute > 80% of the total river discharge during low flow periods. Normally, high mass loadings correspond to the summer months, compounding the effects of a naturally stressful period, characterized by high temperatures and low dissolved oxygen concentrations. Samples from 12 stations were collected quarterly over an 18 month period from the Trinity River and two tributaries. Water samples were analyzed for a variety of water quality variables, including metals, priority pollutants, pesticides, and general water quality parameters. Water samples were also tested for acute and subchronic effects with several test species. Fish were collected at each station and assemblages were characterized using traditional classification techniques and the Index of Biotic Integrity. In addition, sediment samples were assessed for toxic effects which could have adversely impacted fish recruitment and in situ biomonitoring experiments were performed. Quantitative habitat characterization analyses were performed to gain additional information that could possibly explains differences in fish assemblage structure related to habitat variability. Data …

This dissertation sought to determine the effects of a buddy system on a student's self-concept, academic achievement, attrition rate, and congruence levels. The buddy system treatment randomly paired two students for the purposes of sharing ideas, working on assignments, getting to know each other, and supporting one another. The study included three randomly selected sections of pre-college level, developmental writing classes from the Brookhaven College of the Dallas County Community College District. Three other classes served as the control group, and one instructor taught all six sections of the course. Three instruments were used as measures of change: the Tennessee Self-Concept Scale (TSCS), designed by William H. Fitts, measured self-concept levels; the Personality and Educational Environment Scale (PEES), created by Roger Boshier, measured congruence levels; and a written paragraph measured achievement levels in English. Attrition percentages were based on the number of students enrolled during the second week of class who were not present during the sixteenth week of class. To test for significance, an analysis of covariance procedure was used on the TSCS, PEES, and written paragraph results, and a test for the difference between proportions for independent groups was used on the attrition percentages. The class sections were …

The problem of assessment and diagnosis of depression in the elderly begins with the definition of depression being indefinite. In this study, the theory of learned helplessness was chosen because of its value in organizing research within a learning theory framework. The Beck Depression Inventory, measures of fluid and crystallized intellectual ability, locus of control, and attribution of success and failure were chosen as variables for an exploratory factor analysis. The purpose of selecting these variables was to assess the cognitive, motivational, and affective components of learned helplessness as they affected the responses of elderly subjects to depression items. Self report measures of income, education, and health, were included to assess the relationship of these variables to depression. A somatic factor was predicted to correlate with an affective factor of depression.

The attitudes toward the integration of faith and discipline of full-time faculty members at five selected Southern Baptist colleges and universities which are members of the Christian College Coalition were explored for this study. The integration of faith and discipline is a concept unique to Southern Baptist higher education. Arthur Walker, Jr., of the Education Commission of the Southern Baptist Convention defines the concept as referring to the mission of the institution, the personal faith of faculty members, and the professional involvement and interaction of faculty members with their students, regardless of disciplines. Since little information exists on faculty attitudes toward this concept, data were collected through a survey instrument on three dimensions of integration: professorial integration in the classroom, professorial integration in and out of the classroom, and institutional integration of faith and discipline.

This study modified the Ramanujam and Venkatraman (1987) questionnaire that was used to develop their model of planning system dimensions and planning effectiveness, and tested the model on a sample of private social service agencies. The criterion measures were level of planning sophistication, agency size, perceived environmental uncertainty, and relative competitive position. The sample was randomly drawn from private social service agencies which were members of the Community Council of Greater Dallas. Telephone interviews with fifty executive directors were conducted by a trained, impartial interviewer. Stepwise discriminant analysis was used to predict group membership between informal and formal planners. Of the nine dimensions in the model, three dimensions correctly classified 84 percent of the sample. The three dimensions were fulfillment of planning objectives, use of decision making techniques, and lack of resistance to planning. The level of perceived environmental uncertainty was another criterion set. Directors who perceived high uncertainty paid more attention to the external environment, used more decision making techniques, and relied on functional specialists when planning. Large and small agencies were classified by their annual budgets. Stepwise discriminant analysis using the planning system dimensions failed to reject the null hypothesis. Agencies reporting strong relative competitive positions placed greater …

Few areas of research in the finance literature have received greater attention than the efficient market hypothesis. Much of the research has been directed toward the securities market while very little research has been done in the real estate markets. The existing research on real estate market efficiency has been either descriptive or illustrative with very little empirical testing being performed. The major reason for the lack of empirical testing has been the inability to develop an adequate data base. The results of the empirical work that has been done do not support the widely held belief that real estate markets are inefficient. This study, using the autoregressive-integrative-moving average (ARIMA) time series analysis technique, tests the weak-form efficiency of the Dallas-Fort Worth office properties real estate market. According to the weak-form efficient market hypothesis, all price information should be capitalized into current real estate prices and not provide the basis for earning abnormal returns in trading. Price data formed from office building sales dating from January, 1979 to January, 1985 are used to test the market. The data was gathered from the files of several professional appraisal firms located in the Dallas-Fort Worth area. The transaction information includes (1) transaction …

This study was concerned with the enrollment patterns in required general education courses by technicaloccupational students in an urban community college. The purposes of this study were to (1) examine the general education course enrollment patterns of technical occupational students in specific programs; (2) determine if completion of an English course yields a higher GPA; (3) profile the characteristics of the students who do and do not enroll in general education courses; (4) determine if students enrolled in certain technical-occupational programs are more likely to enroll in general education than students enrolled in similar programs; and (5) determine if completion of general education courses has a positive effect on overall GPA of students.