The second order rate constants for nucleophilic substitution by methoxide of (Z)- and (E)-O-methylbenzohydroximoyl fluorides [C6H4C(F)=NOCH3] with various substituents on the phenyl ring [p-OCH3 (1h, 2h), p-CH3 (1g, 2g), p-Cl (1f, 2f), p-H (1e, 2e), (3,5)-bis-CF3 (1i, 2i)] in 90:10 DMSO:MeOH have been measured. A Hammett plot of these rate constants vs σ values gave positive ρ values of 2.95 (Z isomer) and 3.29 (E isomer). Comparison of these rates with methoxide substitution rates for Omethylbenzohydroximoyl bromide [C6H4C(Br)=NOCH3] and Omethylbenzohydroximoyl chloride [C6H4C(Cl)=NOCH3] reveal an element effect for the Z isomers of Br:Cl:F(1e) = 2.21:1.00:79.7 and for the E isomers of Cl:F(2e) = 1.00:18.3. With the p-OCH3-imidoyl halides the following element effects are found: Br:Cl:F(1h) = 2.78:1.00:73.1 for the Z isomer and Br:Cl:F(2h) = 1.97:1.00:12.1 for the E isomer. Measurement of activation parameters revealed ∆S≠ = -17 eu for 1e and ∆S≠ = -9.9 eu for 2e. Ab initio calculations (HF/6-31+G*, MP2/6-31+G*//HF/6-31+G*, B3LYP/6- 31+G*//HF/6-31+G*, HF-SCIPCM/6-31+G*//HF/6-31+G*) were performed to define the reaction surface. These calculations demonstrate a relatively large barrier for nucleophilic attack in relation to halogen loss and support the experimental findings that this reaction proceeds by an addition-elimination mechanism (AN# + DN). The imidoyl fluorides have been used to synthesize …

The primary interest of this investigation concerned the self-injurious thoughts and behaviors (SITBs) of inpatient adolescents. Previous researchers have provided descriptive information regarding either automatic (or intrinsic) and social components using the Self-Injurious Thoughts and Behaviors Interview (SITBI). However, the presence and trends of these components have not firmly been established, suggesting the need to explore this area further. Eighty-two adolescent inpatients were selected and interviewed using the SITBI to evaluate the predictive ability of self-reported self-injurious behavior with regard to social and automatic, negative and positive functions. Results showed that depending on the type of thought or behavior displayed one could discern the motivation behind their actions. Automatic-Negative was seen to have the strongest relationship across all SITB behaviors while Automatic-Negative was not found to be relatively low compared to other SITB behaviors. Both Social-Positive and Social-Negative were found to be present in moderate relationships compared to Automatic in general.

This study explored the relationship between cheating among university students and their cognitive developmental levels, use of neutralization techniques, self-concept as a multifaceted cognitive construct, and attitude toward cheating. The purposes of this study were to investigate: (1) The relationships between academic dishonesty and each of the following overall independent variables: cognitive development, use of neutralization techniques, self-concept as a multifaceted cognitive construct, and attitude toward cheating, and (2) the reasons behind college student academic cheating behaviors. The study used data from anonymous, self-report surveys administered to undergraduate students in-class and at supplemental sessions. Student participation was voluntary. The study was correlational. The five hypotheses were: (1) Self-concept is significantly and negatively related to academic dishonesty; (2) Cognitive development is significantly and negatively related to academic dishonesty; (3) Attitude toward cheating is significantly and negatively related to academic dishonesty; (4) The use of neutralization techniques is significantly and positively related to academic dishonesty; (5) Cognitive development, self-concept, and attitude toward cheating will make significant contributions to the regression model for the dependent variables of academic dishonesty. The data supported the first, third, and fourth hypotheses. However, the second and fifth hypotheses were supported under certain conditions. The roles of cognitive …

This study replicated and extended previous research I had performed that suggested that a student success course is an effective intervention to assist student-athletes in the adjustment to college. Participants in the current study included 4 groups of students, including (1) non-athletes and (2) student-athletes who were mandated and enrolled in the student success course, and (3) non-athletes and (4) student-athletes who were not mandated and did not enroll in the student success course. Overall, results from the current study suggested that the student success course was effective in helping non-athletes and student-athletes learn key cognitive strategies that are necessary for college success. In addition, results indicated that after taking the student success course, academically at-risk students earned equivalent grades, percentage of hours passed, and retention rates compared to their peers who were not classified as being academically underprepared. Finally, adjustment patterns of all groups were examined, with particular emphasis on the decrease in adjustment over the course of the semester that was demonstrated by the student-athletes. Intervention implications and future research directions are discussed, specifically in terms of how to address the unique needs of college freshmen student-athletes.

Parent-child interactions tend to be problematic among families of children diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD). Although much attention has been paid in research and therapy to negative cycles of interaction between parent and child, it is equally important to consider how positive family interactions can be promoted, as these are likely to help prevent or reduce behavior problems and facilitate the best possible outcomes for children. Major contributors to the fields of psychology and child therapy have postulated that parental empathy is of primary importance in facilitating healthy child personality development. However, the effect of parental empathy has not been systematically studied with ADHD children. Thus, this study investigated the relationship between parental empathy and child adjustment factors in children with ADHD. It was hypothesized that among parent-child dyads with ADHD children, higher levels of parental empathy would predict higher levels of child self-esteem, social skills, and compliance, and lower levels of child aggression. Participants were 56 children who were previously diagnosed with ADHD and their parent/guardian. Thirty-seven parent-child dyads served as a control group. The study included parent-child participation in a videotaped analogue observation procedure and completion of parent-, child-, and teacher-report measures. Results indicated that higher levels of …

Effective leadership is a concept shown to be important for successful team performance in the fields of business, education, and sport. In sport, the role of the athlete leader has been under-examined and specifically, how coaching behaviors can affect athlete leader behaviors and how various leadership models (e.g., trait, behavioral, situational) relate to the athlete leader role has never been studied. The present study examined how autocratic, democratic, and collaborative coaching styles affect the athlete leader behavior preferences of athletes of different genders and sport types. Three coach scenarios reflecting the three aforementioned coaching styles were created so that athletes could imagine that they were coached by the individual presented in the scenario and then rate what type of athlete leader behaviors that they would prefer given the style of the coach that they read about. Results showed that the coach scenarios failed to have a significant impact; however, significant differences were discovered between men and women and between individual and team sport athletes on variables measuring preferred performance/task, relationship, motivation, and representation behaviors. Data were gathered on the style of athletes' current coach and this variable also produced significant differences for such behaviors as resolving conflict, providing positive reinforcement, …

This study investigated the effect of school-sponsored, extra-curricular activities on academic achievement for students at a private school in north central Texas. Students selected for this study were graduates from the classes of 1996, 1997, 1998, 1999, and 2000. With a minimum participation of two years during grades nine through twelve, students were categorized into subgroups of activities. After eliminating students who participated in more than one of the extra-curricular activities of music, drama, visual arts, and athletics, three hundred sixty-one students were represented. The identity of students was encoded and information was recorded for gender, school-sponsored, extra- curricular activities, cumulative grade point averages, SAT Scores, ACT Scores, and cumulative grade point averages in core curriculum subjects. A two-way ANOVA test with a two-by-five factorial design was completed for research questions one through four. A one-way ANOVA with a one-by-five factorial design was completed for research question five. When a significant F was found, Scheffe and LSD post hoc tests were completed to determine pair wise interaction. Statistical differences did exist when comparing school-sponsored, extra-curricular activities and cumulative grade point averages with musicians having a significantly higher cumulative grade point average, SAT scores, and ACT scores than athletes. A significant …

This study investigated the effects of interactive lessons and learning style on student learning outcomes in self-defense education classes. The study utilized an experimental design that incorporated four self-defense education classes at the University of North Texas (UNT) during the fall semester 2007 (N = 87). A pre-test was administered during the first week of class to determine prior knowledge of the participants. The Visual Auditory Reading/Kinesthetic Inventory (VARK) was used to assess the learning styles of the students and was completed after the pre-test of knowledge was administered. The treatment group received the interactive lesson and the control received a paper review. The difference between the pre and posttest was used as a measure of improvement of the student's learning outcomes. A 2 (treatment/control) by 2 (pretest/posttest) ANOVA with repeated measures was conducted to examine the differential improvement in knowledge across the intervention. Based on the 2-way ANOVA there was a significant difference between the treatment group and the control group based on their learning outcomes. A repeated measures ANOVA was conducted to determine if there was a significant difference between the groups based on the pre and post test scores. Based on the results of a one week …

Parental participation in educational issues is relevant in assisting parents in understanding and becoming satisfied with their child's educational experience. Parental involvement is not only an ethical issue for teachers, but mandates have been established for special educators through various public laws. When involving parents in their children's education, it is relevant to consider various factors associated with students who are culturally and linguistically diverse. Parental satisfaction plays an important role in many cultures in obtaining parental involvement in decision-making meetings. If parents experience negative interactions, parental participation can be diminished. In other cultures, the satisfaction level raises parental trust in allowing school staff to make the appropriate choices for their children. Family values and beliefs among the various cultures should be a consideration when encouraging parents to participate in their child's educational process. Several barriers exist when involving different cultural groups; therefore, it is essential for educators to become aware of these barriers and learn strategies to overcome them. This study addresses parental understanding and satisfaction among ethnic group and throughout various disability groups by evaluating parental responses from a statewide survey and three focus groups.

Seminal works on leadership, including those in librarianship define a traditional model of interaction between leaders and followers without reference to the information technology-driven environment. In addition, remote leadership indicates a different model from the traditional model, one that is focused on the interaction of leaders and their staff through digital technology. Although leaders still use face-to-face interaction, due to varied work schedules or job responsibilities, they also recognize the need to lead employees remotely. Leadership studies in library literature have not addressed how library leaders use information technology to lead employees remotely, nor have these studies addressed remote leadership and remote employees, except for some articles on telecommuting. As a result, this research was conducted to address this gap, providing an exploratory foundation of emergent patterns of remote leadership with its associated leadership dimensions rooted in personality traits, behaviors, and skills. Quantitative and qualitative data were obtained from a small sample size of academic and public-library leaders in the United States who participated in a Web-based survey designed specifically for this study, limiting generalizations. Factor analysis was the principal methodology used to obtain findings. Its composite factor scores were also used in the t-test and chi-square analyses. This study …

The purpose of this descriptive study was to determine if business leadership practices by Texas public school principals have an impact on principals' campus student achievement in mathematics and reading, as measured by TAKS scores. The survey instrument was the Leadership Assessment Instrument (LAI), developed by Warren Bennis in 1989. The survey instrument was electronically distributed to a sample of 300 public school principals in Texas. Of the 300, 140 principals completed and returned the survey, for a response rate of 47%. The Statistical Package for the Social Sciences (SPSS), version 16.0, was used for the analysis of data, which included descriptive statistics, analysis of variance, and regression. In addition, reliability for the LAI was also calculated. The LAI consists of the following five categories of effective business practices: focused drive, emotional intelligence, building trust, conceptual thinking, and systems thinking. No significant relationships were found between principals' use of LAI elements and student achievement in mathematics and reading. However, the lack of significant relationships between the business model as used in public schools and student achievement reveals that current models of principal preparation programs do not result in school leaders who are adequately prepared to increase student achievement. Further research …

This study explores distinct levels of meaning from images of picture books perceived by 3- to 5-year-old children and investigates how the certain visual perception factors influence children's meaning making and if these factors are correlated. The literature review supports associations among visual perception, information, picture books, meaning, and children. Visual perception serves as the first channel that filters and interprets visual information, and picture books provide visual and verbal experience for children, who constantly search for meaning. Children age 3 to 5 years are potential users of picture books because pictorial information is considered useful to children's learning tasks. Previous research reveals that various factors influence visual perception, and meaning has been mostly associated with its semantic significance in information retrieval. In information science, little research has focused on young children's own way of categorizing information, especially visual information. In order to investigate the distinct levels of meaning perceived by children, the investigation employed both qualitative and quantitative methods including unobtrusive and participant observation, factor analysis, content analysis, and case study. The result of this study contributes to understanding the cognitive process of children related to visual literacy and their interpreting visual information in a digital environment.

Implicit in the call for educational reform in the teaching of social studies has been the suggestion that pursuing inquiry-based principles will lead to improvement in student achievement. The purpose of this study was to compare the effectiveness of two types of pedagogy: traditional and inquiry-based upon student achievement as measured by a standards-based, state administered examination. Second, this study examined the relationship between the treatment teachers' level of implementation and student achievement. A nonequivalent control group posttest and experimental design was used in this study. Subjects involved in this study include 84 secondary American history teachers and their respective students from a large urban public school district in Texas. The sample consisted of two groups, one taught by traditional/didactic instruction (n=48) and the other taught by inquiry-based pedagogy (n=36). Data for this study were collected using a classroom observation protocol based upon the level of use rubric developed by the concerns-based adoption model. An analysis of variance (ANOVA) (p<.05) was used to measure the effects of inquiry-based instruction and traditional pedagogy on student achievement. Student achievement results were measured by the Texas Assessment of Knowledge and Skills (TAKS) for American history, grades 8 and 11. The study found that …

An exploratory study was conducted examining Internet usage among African-American college students. The study examined both psychosocial correlates, including technological anxiety and racial identity as well as socioeconomic measures, as they impacted Internet usage. Additionally, three distinct measures of Internet usage, thin access, thick access and the Internet Connectedness Index (ICI), were used as criterion variables in three separate multiple regression analysis (MRA) models. The results of the study found differences in predictive validity based on the criterion variable used, with the ICI accounting for the greatest amount of variance (54%). Racial identity, in terms of internal beliefs and feelings about being African American and internalization of Afrocentric values in a political context were found to be predictive of Internet usage as measured by the ICI.

Taxonomic composition and spatio-temporal variability of macroinvertebrates inhabiting snags were examined from an 8-km segment of the Elm Fork of the Trinity River. Seventy-seven macroinvertebrate taxa were collected from submerged wood during the study. Assemblages were highly variable spatially and temporally, especially among seasons. An ordination of species and environment did not find snag taxa to have striking correlations with many of the selected environmental variables, although there were some trends in flow-mediated species distributions. There were significant seasonal differences in the abundances of some taxa, particularly among the Chironomidae (Diptera). The Tribe Orthocladiini was numerically abundant during the winter, while the Tribes Chironomini and Tanytarsini dominated the summer and autumn. Additionally, this study included a secondary production and microdistribution analysis of a population of the caddisfly Cyrnellus fraternus. Distributions of C. fraternus were restricted to snags, the most stable substratum for retreat building and for resisting periodic high waters. Larvae were not found in the soft sand and mud benthic habitats near submerged wood. The insects were multivoltine with a minimum of three generations per year. Pupae were collected July through September and adults emerged from May through October. The population overwintered as larvae. Estimated annual production was 1,015.4 …

This study investigates the correlation between students' learning styles, computer competency and student satisfaction in Web-based distance learning. Three hundred and one graduate students participated in the current study during the Summer and Fall semesters of 2002 at the University of North Texas. Participants took the courses 100% online and came to the campus only once for software training. Computer competency and student satisfaction were measured using the Computer Skill and Use Assessment and the Student Satisfaction Survey questionnaires. Kolb's Learning Style Inventory measured students' learning styles. The study concludes that there is a significant difference among the different learning styles with respect to student satisfaction level when the subjects differ with regard to computer competency. For accommodating amd diverging styles, a higher level of computer competency results in a higher level of student satisfaction. But for converging and assimilating styles, a higher level of computer competency suggests a lower level of student satisfaction. A significant correlation was found between computer competency and student satisfaction level within Web-based courses for accommodating styles and no significant results were found in the other learning styles.

Team-based management is a popular contemporary method of redesigning jobs in order to more effectively utilize the human potential of employees. The use of such management techniques should result in increased satisfaction and team commitment; however, many research studies have failed to demonstrate increases in affective outcomes on the part of the employee. The research question examined in this study is, "What specific job dimensions and situational factors result in higher levels of satisfaction and team commitment?" The Job Characteristics Model (Hackman & Oldham, 1975) provided a basis for this study. The model was designed for individual contributors and has not been extensively used in team research. As expected it was found that within a team-based environment higher levels of the five core job dimensions of skill variety, task identity, task significance, autonomy, and job feedback were associated with increased satisfaction and team commitment. Organization-based self-esteem was found to mediate the relationship between the five core job dimensions and the affective outcome variables. Contrary to expectations, however, it was found that consultative team members experienced higher levels of satisfaction and commitment than substantive team members. In addition, consultative team members reported higher levels of two core job dimensions, skill variety …

The purpose of this study determined whether use of student random drug testing provided an effective means to reduce drug usage by secondary school students. The participants included 50,214 7th through 12th grade students in 12 selected public schools. All school districts participated in the Texas School Survey of Substance Use in 1994, 1996, 1998, and 2000. The six districts in the experimental group used drug testing as a method of reducing drug usage among students. The six districts in the control group did not use drug testing. Although athletes and students involved in extracurricular activities remain the focus of random dug testing, this research focused on an entire school population to determine whether drug testing only a select group of students reduced reported drug usage in the entire school. Two questions guided the research: First, does the use of random drug testing have an impact on student drug usage? Second, does the year of implementation of random drug testing have an impact on students' self-reported drug usage? The findings for each research question were categorized according to nine illegal drugs. The researcher used a one-way repeated measures factorial design. The data were analyzed via the univariate (split-plot) 2 x …

Analysis of a particular north-central Texas public high school revealed a strong representation of Hispanic females in advanced academic programs, i.e., AP and GT in proportion to their representation in the overall student population. Research seems to indicate that a progressive approach to academic-potential identification; culturally effective mentoring, traditional Hispanic values, and newly emerging personal and social characteristics all seem to be contributing factors. This study seems to indicate that a new type of Hispanic female is emerging who is more assertive academically, more visible in the classroom, and less marriage-and-family oriented as might be believed by teachers, society, their peers, and perhaps even their parents.

Western educational policies and practices have impacted Taiwanese early childhood programs. The concept of developmentally appropriate practice has become part of the educational program for young children in Taiwan. This research study was completed to: (a) describe Taiwanese parents' beliefs about developmentally appropriate practice (DAP) in early childhood programs; (b) examine group differences between fathers' and mothers' beliefs about DAP; (c) investigate group differences between parents of different socioeconomic statuses beliefs about DAP; (d) explore group differences between parents' beliefs about DAP when their children attend different types of schools (public and private); and (e) identify salient factors related to the variability of developmentally appropriate beliefs of Taiwanese parents. Three hundred seventy-nine matched Taiwanese parent pairs (mothers and fathers) participated in this survey research study. All parents had at least one child between the ages of 3 and 6 years. Four hundred forty-eight children attended public schools, and 415 attended private schools. The Teacher Beliefs Questionnaire was modified and used to collect data in this study. Findings showed: (a) fathers' and mothers' beliefs about DAP are significantly correlated; (b) fathers' and mothers' socioeconomic statuses are significantly correlated with their developmentally inappropriate practice beliefs; and (c) parents' socioeconomic status was a …

The purpose of this study was to investigate the effects of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children. The findings of prior investigations indicated similarities between aural music and language perception. Psychoacoustic and neurological findings have reported the discrimination of alphabet quality and musical timbre to be similar perceptual functions and have provided, through imaging technology, physical evidence of music learning simultaneously stimulating non-musical areas of the brain. This investigator hypothesized that timbre discrimination, the process of differentiating the characteristic quality of one complex sound from another of identical pitch and loudness, may have been a common factor between music and alphabet sound discrimination. Existing studies had not explored this relationship or the effects of directly teaching for transfer on learning generalization between skills used for the discrimination of musical timbre and alphabet sounds. Variables identified as similar from the literature were the discrimination of same- different musical and alphabet sounds, visual recognition of musical and alphabet pictures as sound sources, and association of alphabet and musical sounds with matching symbols. A randomized pre-post test design with intermittent measures was used to implement the study. There were 5 …

American composer George Antheil's Sonata for Trumpet and Piano was written in 1951. This dissertation provides historical and theoretical information that gives insight into the interpretation of this sonata. Reasons why the piece deserves greater attention with respect to the standard twentieth century trumpet literature are also given. Antheil's music was influential in the development of classical music in the first half of the 20th century and, more specifically, contributed to the establishment of an American style of classical music. Composed near the end of his life, this sonata has its roots in this heritage. The understanding of Antheil's history, motivations, and compositional techniques is intended to help bring a performance of this sonata to its full potential.

This study provides quantitative and qualitative data about the effects of using children's literature with adolescents in a language classroom and the role of children's literature in students' second/foreign language development, including listening, speaking, reading, and writing skills. The study presents qualitative data about the role of children's literature in developing more positive attitudes toward reading in the second/foreign language and toward reading in general. With literature being a model of a culture, presenting linguistic benefits for language learners, teaching communication, and being a motivator in language learning, this study presents empirical data that show that inclusion of children's literature in adolescents' second/foreign language classroom promotes appreciation and enjoyment of literature, enhances the development of language skills, stimulates more advanced learning, and promotes students' personal growth.

This study examined the comments submitted by the public to the United States Department of Education (USDE), the Office of Special Education Programs, in response to the 2004 amended IDEA, prior to the development and publication of proposed regulations under 34 Code of Federal Regulations (CFR) parts 300 and 303 to implement programs under IDEA. Specifically, this study analyzed the types of individuals (e.g., parents, advocates, administrators, lawyers, support staff personnel) and interest groups along with the number of submissions, types of comments made, and specific provisions in the legislation that received the most comments during the period open to the public prior to the publication of the proposed regulations. In addition, an exploration of the existence of differences in comments submitted by states and regions was analyzed in terms of types of individuals, interest groups, types of comments, and specific provision of the 2004 amended IDEA. Content analysis approach utilizing qualitative data collection and analysis procedures was used for this study. The sample consisted of 2,199 comments submitted to the USDE via the U.S. Postal system, e-mail, and verbal testimony transcripts obtained during one of the public meetings held throughout the United States during the 60 day period open …