This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.

This lecture script examines the nature and role of standards for the emerging 21st century library. Given the dynamic character of the networked environment, when are standards appropriate and how can they be developed in a manner consistent with the volatility of information technologies and changing library services? What are the roles and responsibilities of standards developing organizations, technology vendors, content creators, and librarians for standards? Do local practices of libraries threaten standards-based resource sharing and resource access technologies? Can local needs be balanced with broader library community responsibilities, and how do standards affect this balance? The speaker's assumption is that adherence to standards has never been more critical, yet his implementation experience with Z39.50 and MARC suggests that the commitment to national and international standards by librarians, technology vendors, and content creators are often an example of good intentions rather than actual practice. This standards disconnect threatens the emerging 21st century library's ability to deliver fundamental services in appropriate ways to their users.

The study used a survey design to ascertain the levels of knowledge and attitudes of special education and non-special education preservice and inservice teachers towards students with different sexual orientations. The results of this study are based on 408 responses from preservice and inservice teachers enrolled at seven institutions of higher education within North Carolina, Virginia, and the District of Columbia offering teacher training programs in regular and/or special education. Two previously developed instruments were used to measure dependent variables in this study. Koch's modified version of The Knowledge about Homosexuality Questionnaire developep by Harris, Nightengale & Owen was used to measure the dependent variable of the preservice and inservice teacher's knowledge about homosexuality. Herek's Attitudes Toward Lesbians and Gay Men (ATLG) measured the dependent variable of attitudes towards homosexuals. The study found no significant differences reported mean scores for knowledge or attitude of homosexuality among the teacher groups surveyed: (a) special education preservice teachers, (b) non-special education preservice teachers, (c) special education inservice teachers, and (d) non-special education inservice teachers. Neither gender nor age were found to be factors in measures of knowledge or attitude of preservice or inservice teachers. Receiving prior instruction in serving the needs of GLBT …

The purpose of this research was to determine if installing a smaller air compressor could reduce the electrical usage of a large semiconductor manufacturing plant. A 200 horsepower Atlas Copco compressor was installed with the existing 500 horsepower Ingersoll-Rand compressors. Testing was conducted during the regular manufacturing process at MEMC Southwest in Sherman, Texas. Analysis of the data found that installing the new compressor could reduce electrical consumption. The study also found there are specific operational setpoints that allow the compressor to operate more efficiently.

Competition to lure corporations has become an enormous issue between states. Smaller communities feel unable to participate in economic development opportunities since their budgets do not provide the necessary funding. In 1979, the Texas state legislature passed the Development Corporation Act in an attempt to aid the smaller communities' quest for economic development. The Act allowed for the creation of local development corporations; however, it did not provide a sufficient funding source to assist the corporations. Therefore two local sales options were established. This paper reports the findings of an analysis of per capita income and employment changes after the adoption of an economic development sales tax. The analysis showed no statistically significant impacts on cities adopting an economic development sales tax when compared with non-adopting cities.

Since the inception of the Higher Education Reauthorization Act of 1998 by the United States Congress, there has been limited research conducted on parental notification policies on campuses of Higher Education concerning alcohol and drug offenses committed by students. This study surveyed parents of incoming freshmen at the University of North Texas regarding their perceptions of Parental Notification policies and their perceptions of underage alcohol offenses by gender, age, ethnicity, and parental status. The relationship between parental notification and underage alcohol offenses was also examined. This study, conducted in the summer of 2002, at the University of North Texas had 539 respondents. An instrument developed to determine parental perceptions of underage alcohol use and parental notification consisted of 20 dichotomous questions. Chi-square tests of independence were used to analyze the data because it could calculate the relationships between two sets of nominal data. Data show that most parents want to be notified in all situations involving underage alcohol offenses and their offspring. Generally, parents do not believe their offspring will use alcohol underage as they enter college and that they are not binge drinkers. Females want to be notified about their student's underage alcohol offenses at a higher rate than …

Handheld computers may hold the possibility for a one-to-one computer: student ratio. The impact of the use of Palm® (Palm, Inc.) handhelds on information acquisition and use by 5th grade students in a North Texas school during a class research project was investigated. Five research questions were examined using observation, interviews, surveys, and document analysis. Are there differences in information gathering and use with the Palm between gifted, dyslexic, and regular learners? What relevance criteria do students use to evaluate a web site to determine whether to download the site to the Palm and afterwards whether to use the downloaded site's information in the report? How do the Palms affect the writing process? Do the animations and concept maps produced on the Palm demonstrate understanding of the intended concepts? Are there significant differences in results (i.e., final products grade) between Palm users and non-Palm users? Three groups of learners in the class, gifted, dyslexic, and regular learners, participated in the study. The regular and dyslexic students reported using Web sites that had not been downloaded to the Palm. Students reported several factors used to decide whether to download Web sites, but the predominant deciding factor was the amount of information. …

Automatic memory management is crucial in implementation of runtime systems even though it induces a significant computational overhead. In this thesis I explore the use of statistical properties of the directed graph describing the set of live data to decide between garbage collection and heap expansion in a memory management algorithm combining the dynamic array represented heaps with a mark and sweep garbage collector to enhance its performance. The sampling method predicting the density and the distribution of useful data is implemented as a partial marking algorithm. The algorithm randomly marks the nodes of the directed graph representing the live data at different depths with a variable probability factor p. Using the information gathered by the partial marking algorithm in the current step and the knowledge gathered in the previous iterations, the proposed empirical formula predicts with reasonable accuracy the density of live nodes on the heap, to decide between garbage collection and heap expansion. The resulting heuristics are tested empirically and shown to improve overall execution performance significantly in the context of the Jinni Prolog compiler's runtime system.

The focus of the study is on financial reporting for non-U.S. firms registered with the Securities Exchange Commission (SEC) but using International Accounting Standards (IAS). This study addresses two issues, (1) whether the comparability of financial reporting among firms using IAS in credit and equity financing jurisdictions increases over time and (2) the associated capital market implications. The motivation for the study is the SEC's ongoing assessment of IAS for possible use by non-U.S. registrants for listing and capital raising in the U.S. Previous research on variations in financial reporting practices has revealed distinctly different types of financial reporting depending on country of origin. Moreover, some research suggests that such differences in financial reporting tend to persist in spite of harmonization efforts of accounting standards. This study suggests that there may be a systematic difference between credit and equity firms' financial reporting that is manifested by the fact that credit firms' adjustments to U.S. GAAP are greater than the adjustments made by equity firms. This systematic difference has had the following capital market consequences for credit firms, (1) a decreasing strength of association between accounting earnings and share prices post-1994, (2) an increased bid-ask spread post-1994, and (3) a decreased …

This work is an exploration into the palindrome, both as a literary form and an expression of infinity. The first two chapters address the fascinating manner in which the mind contextualizes fragments of speech and ludicrous grammatical implications that are spawned by the poetic structure of the palindrome (third chapter). The thesis then departs from the literary aspect of the palindrome and focuses in the fourth chapter on structural likenesses in psychology and mythology. The fifth chapter argues the palindrome and parallel conceptual structures as examples of recursion, then presents examples of recursion in language/grammar, art, and computer science. The sixth chapter uses instances of the recursive equiangular spiral throughout nature to introduce recursion and therefore the palindrome as an archetypal expression of infinity. The thesis ends with a list of the author's palindromes.

The purpose of this study was to examine the effects frequenting the street had on the social-emotional development of children in Cuenca, Ecuador. While the study sought to discover who these children were, it primarily observed the levels of trust these children felt in the various contexts of their lives, their level of safety, where they saw themselves in the future, what made a place feel like a home, their sense of self-esteem, and how they saw themselves contributing to their future. The research instrument used in this study was a modified youth questionnaire previously developed by Tyler and Tyler (1991) in a study with street children/youth in Bogóta, Colombia. The results are presented in 11 case studies of children who ranged in age between 7 and 12 years.

The medium of language is important to environmental philosophy, and more specifically, to the establishment and understanding of environmental relationships. The differences between animal and human language point to our unique semantic range, which results from our neuro-linguistic process of signification. An examination of the linguistic implications of the problem of nature and the tenets of semiotics challenges the idea of a clean word to world fit. Because signs are the medium in which meaning is constructed, questions about nature must in part be questions of language. Environmental discourse itself is bound up in sociolinguistic productions and we must attend not only to what language says, but to what it does. NEPA functions as a speech act that systematically invokes an ethical framework by which it colonizes the domain of valuation and fails to provide a genuine opportunity for non-commodity values to be expressed.

Through this body of work and this paper the possibilities of using Fashion Design to express the concepts of the circle has been explored. This was done with three questions in mind: How can I use the shape of the circle as inspiration for fashion design? How can I express related words and phrases in my design? and How can I use the colors black and white to emphasize the concept of my design. To answer these questions I have created two groups of garments: one was inspired by circular objects, such as cherries and drops, and the other starting from words and phrases such as "study circle" and "circle the wagons." In the first group the emphasis was on the aesthetics of the garment while the second group was more focused on meaning. All garments are black and white.

This study examined the experience of 140 students in a counselor training program that required students to participate in 10 sessions of individual counseling during their training program in order to increase their self-awareness. Students had the option of fulfilling the requirement through being counseled either by more advanced students within the training program or by mental health professionals outside the program. Results indicated that students in both settings reported a significant increase in their self-awareness. Students who fulfilled the requirement in a setting outside of the counseling program clinics reported a significantly higher increase in self-awareness than those who fulfilled the requirement within the counseling program clinics. Students' reports of increased self-awareness did not vary by their stages of progress through the program. Participants reported significant ethical concerns regarding confidentiality and dual relationships that reportedly reduced the beneficial impact of the counseling experience. Students who fulfilled the counseling requirement within the counseling program clinics experienced significantly greater ethical concerns than did those who fulfilled the requirement outside the program clinics. As with effect on self-awareness, stage in the program was not related to impact of ethical concerns on the required counseling experience. The overwhelming majority (91.4%) of participants supported …

The kinetics of the pressure dependent O + SO2 + Ar reaction have been investigated using laser photolysis resonance fluorescence at temperatures of 289 K, 399 K, 581 K, 699 K, 842 K and 1040 K and at pressures from 30-665 torr. Falloff was observed for the first time in the pressure dependence. Application of Lindemann theory yielded an Arrhenius expression of k(T) = 3.3 x 10-32exp(-992/T) cm6 molecule-1 s-1 for the low pressure limit and k(T) = 8.47 x 10-14exp(-468/T) cm3 molecule-1 s-1 for the high pressure limit at temperatures between 289 and 842 K. The reaction is unusual as it possesses a positive activation energy at low temperature, yet at higher temperatures the activation energy is negative, illustrating a reaction barrier.

The Lewisville Lake Environmental Learning Area (LLELA) is a wildlife management area with tallgrass prairie, an endangered ecosystem. Essential ecosystem processes, especially fire, are part of restoration. To support fire management efforts at LLELA and surrounding areas, this project evaluated and developed tools for fire restoration. The four primary prairie grasses respond favorably to burning. Fuel loads and fuel models vary by scale and survey method. One- and 10-hour fuel moisture can be predicted using a statistical model; 100- and 1,000-hour fuel moisture cannot. Historic weather data suggests that burning can occur when it is most effective. The production of ozone precursors produced by burning is comparable to those emitted every six minutes by regional automobiles.

Teacher attrition is a problem with a number of implications, not the least of which is the teacher shortage. Almost half of all new teachers leave the profession within the first five years, creating a difficult model where more teachers leave the teaching profession compared to teachers entering the profession. Part of the problem is a result of career progression. However, most of teacher attrition is a result of factors such as inadequate pay, administrative support, workplace conditions, student related issues, and collegiality with peers. Without a thorough understanding of the factors that contribute to teacher attrition it is impossible to create an environment where "No Child is Left Behind". Although teachers do not enter the profession with the notion of getting rich, they do need to make enough money to support themselves and their families. Furthermore, professional status in America is closely tied to socioeconomic status. Therefore, while salary may be the largest component of teacher attrition, school and district characteristics, teacher qualifications, and demographics also affect a teacher's decision to leave the profession.

This written thesis is a companion to a 30-minute documentary video of the same title. The documentary is a presentation of the historical conflict between the United States Navy and the people of the island of Vieques, Puerto Rico. For over 60 years the island was used by the United States Navy as a military training facility. The documentary attempts to present an analysis of the struggle between citizens of the island and the Navy. This written component presents a summarized history of Puerto Rico, Vieques and the conflict with the United States Navy. In addition, the preproduction, production and post-production process of the documentary are discussed. A theoretical analysis of the filmmaker's approach and technique are addressed and analyzed as well. The thesis's goal is to provide a clear understanding of the Vieques conflict to United States audiences who do not a familiarity with the topic. The thesis is presented from the perspective of a person who grew up in Puerto Rico.

Kinetic equation parameters for the curing reaction of a commercial glass fiber reinforced high performance epoxy prepreg composed of the tetrafunctional epoxy tetraglycidyl 4,4-diaminodiphenyl methane (TGDDM), the tetrafunctional amine curing agent 4,4'-diaminodiphenylsulfone (DDS) and an ionic initiator/accelerator, are determined by various thermal analysis techniques and the results compared. The reaction is monitored by heat generated determined by differential scanning calorimetry (DSC) and by high speed DSC when the reaction rate is high. The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC, temperature-modulated DSC (TMDSC), step scan DSC and high speed DSC, thermomechanical (TMA) and dynamic mechanical (DMA) analysis and thermally stimulated depolarization (TSD). Changes in viscosity, also indicative of degree of conversion, are monitored by DMA. Thermal stability as a function of degree of cure is monitored by thermogravimetric analysis (TGA). The parameters of the general kinetic equations, including activation energy and rate constant, are explained and used to compare results of various techniques. The utilities of the kinetic descriptions are demonstrated in the construction of a useful time-temperature-transformation (TTT) diagram and a continuous heating transformation (CHT) diagram for rapid determination of processing parameters in the processing of prepregs. Shrinkage …

The purpose of this study was to determine whether coaching behavior preferences of NCAA Division I athletes differ as a function of gender and type of sport. The Coaching Behavior Questionnare (CBQ; Martin & Barnes, 1999) was administered to 195 NCAA Division I athletes. Gender and sport type were the independent variables and the participant's mean scores for the subscales on the CBQ were the dependent variables. Descriptive statistics revealed that, overall, NCAA Division I athletes prefer positive and instructional behaviors more than non-responses or negative behaviors. A 2 (gender) x 3 (type of sport) MANOVA and follow-up discriminant function analysis indicated that coaching behavior preferences differed as a function of gender and type of sport played. Thus, NCAA Division I coaches should consider both individual and situational characteristics when working with their athletes to achieve the desired outcome.

The FrameNet database is being used in a variety of NLP research and applications such as word sense disambiguation, machine translation, information extraction and question answering. The database is currently available in XML format. The XML database though a wholesome way of distributing data in its entireness, is not practical for use unless converted to a more application friendly database. In light of this we have successfully converted the XML database to a relational MySQL™ database. This conversion reduced the amount of data storage amount to less than half. Most importantly the new database enables us to perform fast complex querying and facilitates use by applications and research. We show the steps taken to ensure relational integrity of the data during the refactoring process and a simple demo application demonstrating ease of use.

This dissertation examines the evolution of the early English travel narrative as it relates to the development and application of mercantilist economic practices, theories of aesthetic representation, and discourses of gender and narrative authority. I attempt to redress an imbalance in critical work on pre-colonialism and colonialism, which has tended to focus either on the Renaissance, as exemplified by the works of critics such as Stephen Greenblatt and John Gillies, or on the later eighteenth and early nineteenth centuries, as in the work of scholars such as Srinivas Aravamudan and Edward Said. This critical gap has left early travel narratives by Sir Francis Moore, Jonathan Harris, Penelope Aubin, and others largely neglected. These early writers, I argue, adapted the conventions of the travel narrative while relying on the authority of contemporary commercial practices. The early English travelers modified contemporary conventions of aesthetic representation by formulating their descriptions of non-European cultures in terms of the economic and political conventions and rivalries of the early eighteenth century. Early English travel literature, I demonstrate, functioned as a politically motivated medium that served both as a marker of authenticity, justifying the colonial and imperial ventures that would flourish in the nineteenth century, and as …

Literacy is fundamental to formal education, learning, and training for future career related skills. It provides not only the means of acquisition of information and skills during schooling, but it is a vital predictor of a person's general level of education in school as well as successful completion of schooling. Literacy skills serve as the major foundational skill for all school-based learning and without it, chances for academic and occupational success are limited. Despite the efforts of teachers, a significant portion of students continue to fail to achieve success in early literacy in school, with severe consequences for their subsequent educational progress, career opportunities and life chances. The extent of this problem varies throughout school systems. All of our children are affected by their reading ability, and as educators it is critical to provide for all students the most effective literacy programs and strategies which are research based, data-driven and successfully replicated. Because of the psychological, social and economic consequences of reading failure, it is critical to review the research to determine the risk factors that may predispose youngsters to reading failure, and the instructional practices that can be applied to ameliorate reading deficits at the earliest possible time. The …

The early music ensemble has evolved from a counterculture to a mainstream musical genre. Because of this early music is having to learn arts management. Once a unique force it now competes with other arts organizations for funding and audience. Unlike other arts groups, early music has little help from within to clarify non-profit management. Through three types of surveys that were e-mailed to 239 early music organizations and 20 early music societies, an assessment of what is currently happening with early music ensembles in terms of growth, funding and over all well-being can be made. The information obtained revealed that most early music ensembles have little or no training in how to run an organization. This inexperience is creating problems and changing the face of early music. Information from the surveys also reveals that even with the economic problems over the last three years, early music is continuing to survive.