The main purpose of this study was to consider the effects of amplification and vocal function exercises on the perceived vocal health of elementary music educators (N = 37) from Oklahoma (n = 11) and Texas (n = 26). Participants were assigned to the use of the ChatterVoxTM amplifier or vocal function exercises based on pretest scores on the Voice Handicap Index with Music Teacher Voice Questionnaire (VHI/MVQ). Following the 4-week study period, participants completed the posttest VHI/MVQ. The results of a one-way ANCOVA that used treatment group as the independent variable, the summed posttest scores as the dependent variable, and the summed pretest scores as the covariate or control variable indicated that there was a statistically significant difference between the adjusted means for the posttest scores, favoring the exercises group. The overall group and both treatment groups reported frequent loud voice use in work settings and in public places. The overall group and the amplification group reported hoarseness after prolonged talking. The exercises group did not report as great a problem with hoarseness after prolonged talking. Secondary purposes addressed demographic variables. Women perceived greater overall vocal difficulties than men; men frequently reported specific vocal complaints that were not commonly …

The goal of this study was to analyze the impact of instructional format and pedagogical approach on students' learning and motivation within the introductory communication course. Three hundred eighty-five students participated in this study within one of four contexts: face-to-face instruction with service-learning, face-to-face instruction without service-learning, blended instruction with service-learning, and blended instruction without service-learning. A series of MANOVAs was utilized for the study. Results of the study, possible explanations for the results, limitations, and guidelines for future research are presented.

An extensive study of disubstituted cycloalkanes like CnH2n where n=3,4,5 and 6 using DFT((U)B3LYP/6-31G(d) and 6-311+G(2df,2p)) calculations is presented focusing on the effect of pyramidalization of the radical center. A potential energy surface (PES) analysis shows that the radical prefers to pyramidalize anti to the two cis fluorines in the disubstituted cycloalkanes. The degree of pyramidalization for 1,2-difluorocyclopropyl radical is 43.9o away from the cis fluorines whereas for 1,3-difluorocyclobutyl radical, 1,3-difluorocyclopentyl radical and 1,3-difluorocyclohexyl radical is 3.8o, 5.4o and 14.5o respectively away from the cis fluorines. The importance of this pyramidality effect in these compounds is discussed in context with the carbon-hydrogen bond dissociation energies (BDE's) because the preference of the radical centers to pyramidalize anti to the fluorines affects the bond dissociation energy. Importance of steric effect and unfavorable electronic interactions have been extensively explored in planar permethylated cyclobutadiene (Me4CBD) and cyclooctatetraene (Me8COT) using ((U)B3LYP/6-31G(d) and 6-311+G(2df,2p)) calculations. It is thought that steric interactions dominate electronic interactions in Me8COT, while this works opposite in case of Me4CBT. Instead, in Me4CBD the number of unfavorable electronic interactions between π bonds and out-of-plane hydrogens plays the dominant role in determining the relative energies. Interactions between the π bonds of CBD and …

Classification and scheduling are key functionalities of a network processor. Network processors are equipped with application specific integrated circuits (ASIC), so that as IP (Internet Protocol) packets arrive, they can be processed directly without using the central processing unit. A new network processor is proposed called the video network processor (VNP) for real time broadcasting of video streams for IP television (IPTV). This thesis explores the challenge in designing a combined classification and scheduling module for a VNP. I propose and design the classifier-scheduler module which will classify and schedule data for VNP. The proposed module discriminates between IP packets and video packets. The video packets are further processed for digital rights management (DRM). IP packets which carry regular traffic will traverse without any modification. Basic architecture of VNP and architecture of classifier-scheduler module based on content addressable memory (CAM) and random access memory (RAM) has been proposed. The module has been designed and simulated in Xilinx 9.1i; is built in ISE simulator with a throughput of 1.79 Mbps and a maximum working frequency of 111.89 MHz at a power dissipation of 33.6mW. The code has been translated and mapped for Spartan and Virtex family of devices.

This study examines Liszt's use of the style hongrois in his Swiss book of Années de pèlerinage to reference certain sentiments he had experienced. The event that brought Liszt to Switzerland is discussed in Chapter 1 in order to establish an understanding of the personal difficulties facing Liszt during the period when the Swiss book took shape. Based on Jonathan Bellman's research of the style hongrois, Chapter 2 examines the Swiss pieces that exhibit musical gestures characteristic of this style. Bellman also introduced a second, metaphoric meaning of the style hongrois, which is discussed in Chapter 3 along with Liszt's accounts from his book Des Bohémien as well as the literary quotations that are included in the Swiss book. Together, the biographical facts, the accounts from Des Bohémien, and the literary quotations show that Liszt was using the style hongrois to substantiate the autobiographical significance of the Swiss book.

The present study sought to build on the large body of past research into written disclosure of traumatic memories. This research has consistently found that participants who write about their traumatic experiences realize long-term physiological and psychological health benefits. More recently, it has been found that those participants who realize the most benefits are those who progressively include more elements of a good narrative, or story, in their writing about a traumatic experience over several sessions. Therefore, research has begun to examine the role of language and the structure of language in the health benefits gained from written disclosure of traumatic memories. A guided written disclosure protocol was designed for the present study, which sought to aid participants in supplying an increasing amount of narrative structure to their written disclosures of a single traumatic experience. Participants (N = 30) completed several measures of psychological and physiological health prior to and one month after completing the guided written disclosure protocol. Analyses revealed that participants who completed all four writing sessions showed statistically significant reductions in symptoms of general psychological distress, obsessive-compulsive symptoms, and intrusive and avoidant symptoms related to the traumatic experience. No significant self-reported physiological health benefits were found. The …

Flutists have reported musculoskeletal pain from practicing and performing their instrument. This study was a statistical approach to investigate potential causal risk factors for flute related pain among high school and college students. The study focused on the relationship between flute related pain and musical background or anthropometric measurements including size, strength and flexibility. Subjects included thirty high school and college-aged flutists who were assessed using a questionnaire, bi-lateral anthropometric measurements of the upper-extremities, upper-extremity performance tests for range of motion, isometric strength and rotation speed, and instrument specific questions. Four questions regarding pain associated with flute playing were treated as dependent variables and used for correlation and regression analyses with other independent variables. A six-factor regression model was created and each model was statistically significant. Results of this study show that strength, flexibility, pain spots, and exposure are risk factors for flute related pain. Both left and right pinch strength and right isometric pronation strength were significantly correlated to flutists experiencing pain while playing. Knowledge of these factors in relationship to pain is needed in flute pedagogy to help teachers and performers understand why flutists report pain during and after playing. Additional studies are warranted for replication of this …

The study purposes were to identify changes in resilience, satisfaction with life (SWL), depression, spirituality, and functional independence (FI) and to examine the relationship between these variables, during the inpatient rehabilitation for a spinal cord injury (SCI). The sample included 42 individuals with a SCI, 33 males and 9 females, who were inpatients with a mean stay of 52 days (SD = 15.78). A repeated measures design was employed with questionnaires completed at three times during rehabilitation. Results indicated that there were significant changes in depression, satisfaction with life, spirituality, and FI during inpatient rehabilitation. Findings also indicated significant correlations between resilience, SWL, spirituality, and depression. Future studies developing interventions, and examining factors that predict resilience could help build resilience and may improve rehabilitation outcomes.

Parent-child interactions help set the foundation for a child's development. It is therefore important to investigate the relative efficiency and efficacy of procedures used to train them. One procedure that researchers continue to explore is video modeling. The current study evaluated the effect of a video model that displayed favorable parent-child interactions and a modified model with embedded instructions to determine if the introduction of either of these models would alter parent-child interactions. Both models were presented alone without supplemental guidance. Three families were involved in the study. The results showed no systematic change across families or conditions as a result of video viewing and are discussed within context of the needs of the parent, adequate stimulus control, community to support behavior change, measurement sensitivity, and influence of methodology. This study provided a great baseline for future studies to explore the necessary components to create an effective video model.

Something About Marybell is a children's book with audio compact disk, in which I combined three art forms: storytelling, illustrating, and music composition. The nature of the story reflects my love of animals, which has been the essence of all my previous works as well. Beyond the technical matters I practiced and obstacles I encountered while working on each of the aforementioned art forms, the most important point I discovered was that all three were consistently interrelated, and I never could develop one medium without considering the others. Working on this project also was a journey to trace my major influences in different subjects. My drawing style is influenced by cartoons and animation films, which are now considered significant artistic styles in Japanese subculture. My music composition reflects a broad influence from many composers' works working in a variety of genres, especially piano works, of all eras. There are two specific works I studied as model works for this project: Poulenc's L'Histoire de Babar le petit éléphant (The Story of Babar the Little Elephant) and Prokofiev's Peter and the Wolf. It was a challenge to blend one stylistic approach into another to accurately realize my musical conception.

The purpose of this dissertation is to analyze Concerto No.3 "Ave Maria" by Alemdar Karamanov (1934-2007) and to elucidate the work through historical background and the composer's ideas. This concerto is presented as a significant gesture of dramatic emotion, religious belief, romantic spirit and universal feeling. The subtitle "Ave Maria" relates to a set up already present within the music program. An analysis of interval relationships will help performers better realize Karamanov's music language. In view of the complicated nature of this piece, an analytical study is considered necessary. The study centers principally on analysis, with an emphasis on the developments of form, tonality and motives to help performers better understand the work, and how to best approach this concerto.

Substitution of MeCN ligands in the activated cluster Os3(CO)10(MeCN)2 by the unsaturated diphosphine ligands (Z)-Ph2PCH=CHPPh2 (cDPPEn) or 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd) proceeds rapidly at room temperature to furnish the ligand-bridged cluster 1,2-Os3(CO)10(P-P) (P-P represents cDPPEn or bpcd). Heating 1,2-Os3(CO)10(P-P) leads to the formation of the thermodynamically more stable chelating isomer 1,1-Os3(CO)10(P-P). Each compound of Os3(CO)10(P-P) has been characterized by x-ray diffraction, IR, 31P NMR and 1H NMR. Ligand isomerization kinetics have been investigated by UV-VIS and 31P NMR (for cDPPEn) or 1H NMR (for bpcd) spectroscopies. The isomerization mechanism is discussed based on the activation parameters and CO inhibition (for cDPPEn) or ligand trapping experiments (for bpcd). Thermolysis of 1,1-Os3(CO)10(bpcd) in refluxing toluene gives the hydrido cluster HOs3(CO)9[μ-(PPh2)C=C{PPh(C6H4)}C(O)CH2C(O)] and the benzyne cluster HOs3(CO)8(μ3-C6H4)[μ2,η1-PPhC=C(PPh2)C(O)CH2C(O)]. Photolysis of 1,1-Os3(CO)10(bpcd) using near UV light affords HOs3(CO)9[μ-(PPh2)C=C{PPh(C6H4)}C(O)CH2C(O)] as the sole product. HOs3(CO)8(μ3-C6H4)[μ2,η1-PPhC=C(PPh2)C(O)CH2C(O)] has been characterized in solution by IR and NMR spectroscopies. Furthermore its molecular structure has been determined by X-ray crystallography. Reversible C-H bond formation in HOs3(CO)9[μ-(PPh2)C=C{PPh(C6H4)}C(O)CH2C(O)] is demonstrated by ligand trapping studies to give 1,1-Os3(CO)9L(bpcd) (where L = CO, phosphine) via the unsaturated intermediate 1,1-Os3(CO)9(bpcd). The kinetics for reductive coupling in HOs3(CO)9[γ-(PPh2)C=C{PPh(C6H4)}C(O)CH2C(O)] and DOs3(CO)9[μ-(PPh2-d10)C=C{P(Ph-d5)(C6D4)}C(O)CH2C(O)] in the presence of PPh3 give rise to a kH/kD value …

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 number of children whose mothers are incarcerated is increasing around the world. Educators of young children are faced with new challenges in their classrooms as they work with these children during their formative years for social-emotional development. The purpose of this qualitative study was to interview the mothers, in order to gain their perspective on how they feel their incarceration has affected their relationship with their children; how they believed it would affect their children in the future, and to investigate the perceptions of early childhood teachers who worked with children of incarcerated mothers. Using interviews, observations, journal, and field notes the researcher collected information from 3 incarcerated mothers, 3 of their children, and the 2 teachers who worked with these children. Overall findings were that the mother-child relationships are of extreme importance to the mothers. They have high hopes for a better life for their child, which includes concerns about their education. Mothers had fears that their incarceration would repeat itself in their children and desired for things to be different in their children's futures. They reported their incarceration affecting their children in negative ways. Their children had difficulty depicting their mothers in their drawings. Lastly, the teachers …

This document examines the technical execution of extended techniques incorporated in the musical structure of Solus, and explores the benefits of introducing the work into the curriculum of a college level trumpet studio. Compositional style, form, technical accessibility, and pedagogical benefits are investigated in each of the four movements. An interview with the composer forms the foundation for the history of the composition as well as the genesis of some of the extended techniques and programmatic ideas.

Mexican immigration to the United States increased tremendously from 1900-1925 as factors such as the Mexican Revolution and the recruitment of Mexican laborers by American industry drew Mexicans north. A significant number of Mexicans settled in Dallas and in the face of Anglo discrimination and segregation in the workplace, public institutions, and housing, these immigrants forged a community in the city rooted in their Mexican identity and traditions. This research, based heavily on data from the 1900, 1910, and 1920 census enumerations for Dallas and on articles from Dallas Morning News, highlights the agency of the Mexican population - men and women - in Dallas in the first three decades of the twentieth century.

A dual, double-acting propulsion system is analyzed to determine how efficiently it can convert the potential energy available from liquid nitrogen into useful work. The two double-acting pistons (high- and low-pressure) were analyzed by using a Matlab-Simulink computer simulation to determine their respective mechanical efficiencies. The flow circuit for the entire system was analyzed by using flow circuit analysis software to determine pressure losses throughout the system at the required mass flow rates. The results of the piston simulation indicate that the two pistons analyzed are very efficient at transferring energy into useful work. The flow circuit analysis shows that the system can adequately maintain the mass flow rate requirements of the pistons but also identifies components that have a significant impact on the performance of the system. The results of the analysis indicate that the nitrogen propulsion system meets the intended goals of its designers.

Due to rapid environmental change, today's business requires a more collaborative management to ensure positive performance. One of the important means that can help firms adapt successfully to a changing environment is knowledge management. The management of information and knowledge as key to retaining competitive advantage and has recently evolved into a more strategically focused research topic for both business and academic study. Managing knowledge, however, is deemed difficult because many companies recognize the importance of their proprietary knowledge and are not willing to share it freely. Recognizing this weakness, many countries have promoted the development of regional clusters where firms can co-develop their competences and competitive advantage against the world's best competitors by sharing knowledge, resources, and innovative capabilities. Other than industrial clusters, trust is also considered an important factor in knowledge management study. Trust reduces the need to monitor others' behaviors, formalize procedures, and it lowers transaction costs. At the macro level, trust can enhance organizations' core competencies and sustain their competitive advantages through co-evolution. This may occur through the development of group collaborations, cooperative relationships, and networks. The study adopted a field survey research method and used multiple regressions as the data analysis technique. The dependent variable …

Recently, some men have taken their wives' last names upon marriage rather than following tradition. The goal of this study was to examine the attitudes that men and women have toward these nontraditional men. Ideological hegemony and social identity theory comprised the framework for examining participants' beliefs. A survey first elicited participants' extant sexist beliefs about men and the characteristics of a nontraditional man compared to a traditional man. An open-ended question further explored participants' opinions. The results indicated that benevolent sexism influences respondents' attitudes towards nontraditional men and that most respondents view nontraditional men as more nurturing and committed to their marriage than traditional men. The results further revealed a dichotomy of positive and negative attitudes towards nontraditional men indicating that society's feelings about nontraditional men are changing.

Flow accelerated corrosion (FAC) is a major concern in the power industry as it causes thinning of the pipes by the dissolution of the passive oxide layer formed on the pipe surface. Present research deals with comparing the protection offered by the magnetite (Fe3O4) versus maghemite (γ-Fe2O3) phases thickness loss measurements. Fourier transform infrared spectroscopy (FTIR) is used in distinguishing these two elusive phases of iron oxides. Representative pipes are collected from high pressure steam extraction line of the secondary cycle of unit 2 of Comanche Peak Steam Electric Station (CPSES). Environmental scanning electron microscopy (ESEM) is used for morphological analysis. FTIR and X-ray diffraction (XRD) are used for phase analysis. Morphological analysis showed the presence of porous oxide surfaces with octahedral crystals, scallops and "chimney" like vents. FTIR revealed the predominance of maghemite at the most of the pipe sections. Results of thickness measurements indicate severe thickness loss at the bend areas (extrados) of the pipes.

This thesis examines the environmental and social consequences of maintaining the artificial divide between thinking and feeling, mind and matter, logos and eros. New Orleans, a city where the natural environment and human sensuality are both dominant forces, is used as a case study to explore the implications of our attempts to impose rational controls on nature - both physical and human nature. An analysis of New Orleans leading up to and immediately following Hurricane Katrina (2005) reveals that the root of the trouble in the city is not primarily environmental, technological, political, or sociological, but philosophical: there is something amiss in the relationship between human rationality and the corporeal world. I argue that policy decisions which do not include the contributions of experts from the humanities and qualitative social sciences - persons with expertise on human emotions, intentions, priorities and desires - will continue to be severely compromised.

The purpose of this study was to determine the impact of the comprehensive school reform model core knowledge on the reading achievement of eighth grade students located in a suburban north Texas school district. The data compared the mean scores on the Texas Assessment of Knowledge and Skills of students attending the experimental core knowledge school with the control school that did not use the core knowledge curriculum. Students from both schools were compared for student achievement gains overall as well as several other categories. The study also used a qualitative survey that asked key faculty members at both schools questions regarding levels of curriculum implementation, staff knowledge of curriculum, etc. The data showed no significant differences between student achievement scores at the experimental school compared with students at the control school. However, the study found that the type of standardized test seems to have an impact on whether students in a core knowledge curriculum show higher achievement than students in a traditional curriculum. Students in a core knowledge curriculum show higher achievement on norm-referenced standardized tests when compared with students not attending a core knowledge school. When taking a criterion-referenced test such as the Texas Assessment of Knowledge and …

In this project I explore the connection between cultural and personal identity in the college classroom. Respondent interviews were conducted using open-ended questions, which began with a broad picture of the role the instructor played in the classroom and then focused more specifically on the issue of sexual orientation and the choices to disclose or not disclose orientation in the classroom. Thematic analysis was used to examine the interviews, upon the completion of the interviews being transcribed. RQ1: Do gay and lesbian instructors disclose their sexual orientation in the classroom? From this question, four themes emerged. These themes were disclosure not relevant, out of the classroom disclosure, students just know, and disclosure in the classroom. RQ2: What reasons do gay and lesbian instructors give for disclosing their sexual orientation in the classroom? Two themes, fears of disclosure and holding back, transpired from this question. RQ3: How do gay and lesbian instructors foster diversity in the classroom related to sexual orientation? Four themes were exposed from the question, and these themes were paradox of diversity, passing, mentoring, and identity not sexuality.

Behaviors related to joint attention have been described by behavior analysts and developmental psychologists alike as having a distinctly social function. Children with autism often do not emit these behaviors. Research on the collateral effects of teaching joint attention suggests far reaching consequences. Given the reported benefits of using these behaviors, and the theoretical descriptions of their function, we assessed joint attention as a collateral effect of a naturalistic parent training program. Data suggest that although these behaviors were not directly targeted, they increased in all 3 children. Implications of parent training goals and child intervention targets are discussed in terms of a behavior analysis of joint attention and child development.