Graphene receives enormous attention owing to its distinctive physical and chemical prosperities. Growing and transferring graphene to different substrates have been investigated. The graphene growing on the copper substrate has an advantage of low solubility of carbon on the copper which allow us to grow mostly monolayer graphene. Graphene sheet of few centimeters can be transferred to 300nm silicon oxide and quartz crystal pre-deposited with metal like Cu and Ru. Characterization of the graphene has been done with Raman and contact angle measurement and recently quartz crystal microbalance (QCM) has been employed. The underpotential deposition (UPD) process of Bi on Ru metal surface is studied using electrochemical quartz crystal microbalance (EQCM) and XPS techniques. Both Bi UPD and Bi bulk deposition are clearly observed on Ru in 1mM Bi (NO3)3/0.5M H2SO4. Bi monolayer coverage calculated from mass (MLMass) and from charge (MLCharge) were compared with respect to the potential scanning rates, anions and ambient controls. EQCM results indicate that Bi UPD on Ru is mostly scan rate independent but exhibits interesting difference at the slower scan. Bi UPD monolayer coverage calculated from cathodic frequency change (ΔfCathodic) is significantly smaller than the monolayer coverage derived from integrated charge under the cathodic …

Extant literature has documented well that people seek health information via the internet as patients and consumers. Much less, however, is known about interaction and creation behaviors in the development of new online health information and knowledge. More specifically, generalizable sociodemographic data on who engages in this online health behavior via social media is lacking in the sociological literature. The term “social e-health” is introduced to emphasize the difference between seeking behaviors and interaction and creation behaviors. A 2010 dataset of a large nationally representative and randomly sampled telephone survey made freely available from the Pew Research Center is used to examine social e-health behavior according to respondents’ sociodemographics. The dependent variable of social e-health behavior is measured by 13 survey questions from the survey. Gender, race, ethnicity, age, education, and income are used as independent variables. Logistic regression analysis was used to determine the odds of engagement in social e-health behavior based on the sociodemographic predictors. The social determinants of health and digital divide frameworks are used to help explain why socioeconomic variances exist in social e-health behavior. The findings of the current study suggest that predictable sociodemographic patterns along the dimensions of gender, race, age, education, and income …

The concept of the invisible college is a key focus of scientific communication research with many studies on this topic in the literature. However, while such studies have contributed to an understanding of the invisible college, they have not adequately explained the interaction of social and structural processes in this phenomenon. As a consequence, past research has described the invisible college differently based on researchers’ perspectives, resulting in misinterpretations or inconsistent definitions of the relevant social and structural processes. Information science and related disciplines have focused on the structural processes that lead to scholarly products or works while placing less emphasis on the social processes. To advance understanding of the invisible college and its dimensions (including both social processes and structural processes), a proposed model (Modern Invisible College Model, MICM) has been built based on the history of the invisible college and Lievrouw’s (1989) distinction between social and structural processes. The present study focuses on the social processes of informal communication between scholars via social media, rather than on the structural processes that lead to scholarly products or works. A developed survey and an employed quantitative research method were applied for data collection. The research population involved 77 scholars from …

Respighi’s scarcely-known orchestral work Sinfonia Drammatica lives up to its title by evoking a narrative throughout the course of its three movements. In this dissertation, I argue how the work’s surface, subsurface, and formal elements suggest this narrative which emerges as a cycle of rising and falling dramatic tension. I explain how Respighi constructs the work’s narrative in the musical surface through a diverse body of themes that employ three motives of contour. The disposition and manipulation of these motives within the themes suggest frequent fluctuations of the level of conflict throughout the symphony as a whole. To show the involvement of musical forms in the work’s narrative, I employ an approach which integrates harmony and thematic behavior. I utilize analytical methods from the current Formenlehre, including terms from James Hepokoski and Warren Darcy’s sonata deformation theory and William Caplin’s theories of formal functions to elucidate ties between the forms of the Sinfonia Drammatica’s movements and those of conventional sonata forms of the late-eighteenth century. This dissertation also employs Heinrich Schenker’s theories of structures, voice leading, and reduction to illustrate large-scale aspects of the Sinfonia Drammatica’s narrative. The resulting analyses show Respighi’s elaborations of common structural paradigms which serve to …

The aim of this dissertation is to lay the groundwork for an integrated approach to violin instruction for children who are not being groomed explicitly for professional careers as instrumentalists. The study presents a particular focus on the age of middle school children, in order to showcase a more specialized and definitive result of research without, however, distinguishing between advantages and limitations of different age groups of children who study music and learn to play the violin. My first goal is to craft a sample method of teaching with a premise that not all students studying music must or need to become professional musicians in their future. I promote an approach based on the premise that music has universal value available to all and that any kind of music education encourages the growth, personality development, and imagination of children. My second goal is to explore how music education functions in 21st century western culture. Research is based on teachings and methods established by Suzuki, Kodaly, Jaques-Dalcroze, and Orff, among others.

The purposes of this research were to explore the effectiveness of the Chickasaw Nation early care and education program in promoting school readiness while infusing tribally relevant values in children from birth through age five; engaging parents in all aspects of their children’s learning; and supporting children and families through the transitioning to kindergarten. The study used qualitative methods to examine the experiences and perceptions of ten parents, ten teachers, and five administrators within Chickasaw Nation’s early care and education system regarding the four basic areas of school readiness, parent engagement, transition, and culturally relevant pedagogy. Four primary themes emerged from the semi-structured interviews: 1) socialization, school readiness, and transition, 2) learning, curriculum, and assessment, 3) the role of parents, and 4) cultural integrity. Data were collected through semi-structured interviews, transcribed, and analyzed based on four research questions. Findings indicated parents, teachers, and administrators were satisfied that the program was successful with assisting children in making progress toward achieving developmental and school readiness goals and that the children were physically, socially, emotionally, and cognitively prepared to enter kindergarten. The program provided activities to encourage and promote parental involvement; however, parents did not indicate active involvement or participation in the activities. …

Carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are attractive reinforcements for lightweight and high strength metal matrix composites due to their excellent mechanical and physical properties. The present work is an attempt towards investigating the effect of CNT and GNP reinforcements on the mechanical properties of nickel matrix composites. The CNT/Ni (dry milled) nanocomposites exhibiting a tensile yield strength of 350 MPa (about two times that of SPS processed monolithic nickel ~ 160 MPa) and an elongation to failure ~ 30%. In contrast, CNT/Ni (molecular level mixed) exhibited substantially higher tensile yield strength (~ 690 MPa) but limited ductility with an elongation to failure ~ 8%. The Ni-1vol%GNP (dry milled) nanocomposite exhibited the best balance of properties in terms of strength and ductility. The enhancement in the tensile strength (i.e. 370 MPa) and substantial ductility (~40%) of Ni-1vol%GNP nanocomposites was achieved due to the combined effects of grain refinement, homogeneous dispersion of GNPs in the nickel matrix, and well-bonded Ni-GNP interface, which effectively transfers stress across metal-GNP interface during tensile deformation. A second emphasis of this work was on the detailed 3D microstructural characterization of a new class of Ni-Ti-C based metal matrix composites, developed using the laser engineered net …

This study applies an empirical research method determine whether Texas public school principals’ leadership styles, coupled with their use of real time data in a data warehouse, influenced their leadership ability as measured by student achievement. In today’s world of data rich environments that require campuses and districts to make data-driven decisions, principals find themselves having to organize and categorize data to help their school boards, campuses, and citizenry make informed decisions. Most school principals in Texas have access to data in multiple forms including national and state resources and a multitude of other data reports. A random sample of principals was selected to take the Multi Factor Leadership Questionnaire (MLQ5x) and the Principals Data Use Survey. The MLQ5x measured principals’ leadership styles as transformational, transactional, or passive avoidant. The Principals Data Use Survey measured how principals use data to inform campus decisions on student achievement, shaping the vision of the campus, and designing professional development. Data obtained from the survey were correlated to determine the relationship between principals’ use of data warehouses and their leadership styles on student achievement as measured by the Texas Assessment of Knowledge and Skills. The results yielded significant relationships between student achievement, principals’ leadership …

The purpose of this study is to identify novice teachers’ perception of their preparedness to teach a class designed for students with autism spectrum disorder (ASD) after graduation from a traditional university-based special education program or from a special education alternative certification program. Teacher preparedness and the need for highly qualified teachers of students with ASD are relevant topics, as the prevalence rate of ASD continues to increase. This phenomenological qualitative study explores novice teachers’ perceptions of preparedness to teach students with ASD and their knowledge about teaching students with ASD. Semi-structured, in-depth interviews were conducted with six novice special education teachers of students with ASD. Results indicated that novice teachers of students with ASD have knowledge of autism and evidence-based practices (EBP), which they ascertained primarily through experiences such as; working directly with students with ASD, however, preservice education programs provided the participants with cursory information related to knowledge of ASD and EBP.

Internet technology has affected humans' lives in many disciplines. The search engine is one of the most important Internet tools in that it allows people to search for what they want. Search queries entered in a web search engine can be used to predict dengue incidence. This vector borne disease causes severe illness and kills a large number of people every year. This dissertation utilizes the capabilities of search queries related to dengue and climate to forecast the number of dengue cases. Several machine learning techniques are applied for data analysis, including Multiple Linear Regression, Artificial Neural Networks, and the Seasonal Autoregressive Integrated Moving Average. Predictive models produced from these machine learning methods are measured for their performance to find which technique generates the best model for dengue prediction. The results of experiments presented in this dissertation indicate that search query data related to dengue and climate can be used to forecast the number of dengue cases. The performance measurement of predictive models shows that Artificial Neural Networks outperform the others. These results will help public health officials in planning to deal with the outbreaks.

This present study examined the structural validity of a Chinese version of Multidimensional Work Ethic Profile (MWEP-C), using a large sample of Chinese parents and their young adult children (N = 1047). Confirmatory factor analysis (CFA) was applied to evaluate the model fit of sample data on three competing models using two randomly split stratified subsamples. Measurement invariance for these two generational respondents was checked using differential item functioning (DIF) analysis. The results indicated that MWEP-C provided a reasonable fit for the sample data and the majority of survey items produced similar item-level responses for individuals that do not differ on the attributes of work ethic across these two generations. DIF items were detected based on advanced and successive iterations. Monte Carlo simulations were also conducted for creating threshold values and for chi-square probabilities based on 1,000 replications. After identifying the DIF items, model fit improved and generational differences and similarities in work ethic between parents and their young adult children were also identified. The results suggested that the younger Chinese generations have higher work ethic mean scores on the dimensions of work centrality and morality/ethics while they have similarities on time concept, self-reliance, delay of gratification, and hard work …

Mobile technologies have been adopted into education more and more. New hardware, such as smart phones and tablets, has increased the popularity of mobile technology. There are also many applications created for the fields of education and tourism. This research chose a travel application from Taiwan to apply into a tourism geographic course at the Taiwan Hospitality and Tourism College (THTC). A quasi-experiment design was applied to this study. Two classes/groups participated in the study. One class was the treatment group which used the travel app through teaching scenarios. The other group was the contrast group which used a lecture format with handouts. Both groups were given a pre-test to determine knowledge of Danongdafu Forest Park (DFP), and Taiwan tourism geography. A post-test was administered after eight weeks of teaching activities. Post intervention scores were compared to pre-intervention scores between the two groups. The results of ANOVA showed that there was no statistically significant learning difference between the treatment group and the contrast group. A paired-sample t-test analysis revealed that after eight weeks of teaching DFP content, both groups gained significantly in knowledge. Furthermore, the learning attitudes and interviews of the treatment group students indicated positive responses utilizing m-learning in …

This study examines and identifies the differences in compositional approach in the operatic fantasies based on Bellini’s La Sonnambula and Weber’s Der Freischütz by Franz Liszt and Julian Fontana. These four fantasies are placed in the context of musical conventions and audiences in the first half of the nineteenth century. The two operatic fantasies by Liszt that are included in this study are representative of reinterpretations that employ formal and textural features suitable for the concert repertoire of piano virtuosos. In contrast, the fantasies by Fontana are indicative of the potpourri style, and suitable both for amateur performance as well as for pedagogical use. The different functions and purposes of the operatic fantasies of Liszt and Fontana are compared and contrasted, with attention to each composer’s respective intended audiences as well as their distinct compositional intentions.

This research is a nomadic inquiry into the ethics and aesthetics of three makers’ social and material practices. Deleuze’s concept of the nomad operated in multiple ways throughout the process, which was embedded in performative engagements that produced narratives of becoming. Over four months, I built relationships with three people as I learned about the ethico-aesthetic significance of their daily practices. The process started by interviewing participants in their homes and expanded over time to formal and informal engagements in school, community, and agricultural settings. I used Guattari’s ecosophical approach to consider how subjectivity was produced through spatial assemblages by spending time with participants, discussing material structures and objects, listening to personal histories, and collaboratively developing ideas. Participants included a builder who repurposed a missile base into a private residence and community gathering space, an elementary art teacher who practiced urban homesteading, and a young artist who developed an educational farm. The research considers the affective force of normalized social values, the production of desire by designer capitalism, and the mutation of life from neoliberal policies. Our experiences illuminate the community-building potential of direct encounters and direct exchanges. The project generates ideas for becoming an inquirer in the everyday and …

This study politicizes the mixed relationship in Israeli-Palestinian literature. I examine Arab-Jewish and interethnic Jewish intimacy in works by Palestinian national poet Mahmoud Darwish, canonical Israeli novelist A. B. Yehoshua, select anthologized Anglophone and translated Palestinian and Israeli poetry, and Israeli feminist writer Orly Castel-Bloom. I also examine the material cultural discourses issuing from Israel’s textile industry, in which Arabs and Jews interact. Drawing from the methodology of twentieth-century Brazilian miscegenation theorist Gilberto Freyre, I argue that mixed intimacies in the Israeli-Palestinian imaginary represent a desire to restructure a hegemonic public sphere in the same way Freyre’s Brazilian mestizo was meant to rhetorically undermine what he deemed a Western cult of uniformity. This project constitutes a threefold contribution. I offer one of the few postcolonial perspectives on Israeli literature, as it remains underrepresented in the field in comparison to its Palestinian counterparts. I also present the first sustained critique of the hetero relationship and the figure of the hybrid in Israeli-Palestinian literature, especially as I focus on its representation for political options rather than its aesthetic intrigue. Finally, I reexamine and apply Gilberto Freyre in a way that excavates him from critical interment and advocates for his global relevance.

Managers are coming under increasing pressure from a wide array of stakeholders to improve the environmental performance of their firms while still achieving financial performance objectives. One of the most researched questions in the business and the natural environment (B&NE) literature is whether it pays to be green. Despite more than three decades of research, scholars have been unable to clearly answer this question. The purpose of this dissertation was to attempt to identify the antecedents that lead to increased, firm-level environmental performance and the conditions in which firms are then able to profit from enhanced environmental performance. First, I assessed three intra-organizational factors of top management teams (i.e. female representation, concern for non-financial stakeholders, and risk-seeking propensity) that theory indicated are associated with increased corporate environmental performance (CEP). Theory also leads us to believe that top management teams with these attributes should perform better in dynamic settings, so I tested to see if industry dynamism moderates these relationships. Second, I then examined industry-level forces that theory indicates would moderate the relationship between CEP and corporate financial performance (CFP). These moderating forces include industry profitability, industry dynamism, and the degree of industry environmental regulation. Hypotheses were tested using panel data …

Since the time of Pythagoras, philosophers, educators, and researchers have theorized that connections exist between music and mathematics. While there is little doubt that engaging in musical or mathematical activities stimulates brain activity at high levels and that increased student involvement fosters a greater learning environment, several questions remain to determine if musical stimulation actually improves mathematic performance. This study took a qualitative approach that allowed 24 high school students to express their direct experiences with music and mathematics, as well as their perceptions of how the two fields are related. Participants were divided into four equal groups based on school music participation and level of mathematic achievement, as determined by their performance on the Texas Assessment of Knowledge and Skills (TAKS). Students participated in a series of three interviews addressing their experiences in both music and mathematics, and took the Multiple Intelligences Developmental Assessment Scales (MIDAS). TAKS data and MIDAS information were triangulated with interview findings. Using a multiple intelligence lens, this study addressed the following questions: (a) How do students perceive themselves as musicians and mathematicians? (b) What experiences do students have in the fields of music and mathematics? (c) Where do students perceive themselves continuing in the …

This study investigated the effects of teacher background variables on fourth grade reading achievement data collected from the 2007, 2009, 2011, and 2013 National Assessment of Educational Progress (NAEP) using a causal-comparative research design. Teacher quality variables related to teacher credentials, instructional methods, training, and support were selected from the NAEP background questionnaire. Descriptive and inferential statistical analyses were used to examine teacher background information and fourth grade reading NAEP scaled scores using measures of central tendency, independent t-tests, analysis of variance, and Tukey’s HSD post hoc analysis. Findings suggest that certain teacher quality variables positively impact fourth grade reading achievement. Significant differences existed among fourth grade reading scaled scores for the following variables: teaching credentials [region (p < .05), traditional preparation route (p < .001), highest degree earned(p < .05), years of experience (p < .001)]; instructional methods [reading aloud by students (p < .01), questioning character motives (p < .01), student selection of reading materials (p < .001), explaining/supporting text (p < .05), identifying main theme (p < .001), time spent on reading (p < .001), primary language arts integration (p < .05)]; teacher support [instructional grade level support/technical assistance by reading specialist (p < .05) and mentoring …

At the beginning of the twentieth century, the recognition of the contralto voice type had reached its apex in England. Throughout the remainder of the century, the number and popularity of recorded contraltos has decreased alongside the rise of the mezzo-soprano voice type. Due to the contralto’s decline and the lack of repertoire composed specifically for the voice, the definition of “contralto” remains somewhat ambiguous. The large contralto repertoire of English composer Ralph Vaughan Williams displays a unique sensitivity to the contralto, particularly with regards to vocal range, flexibility, tessitura, and sustainability. These works thus suggest a new perspective for the voice type. The scope of Vaughan Williams’s oeuvre examined includes each of his operatic roles for contralto and choral works featuring the contralto. Also examined will be the compositional techniques implemented within these pieces which demonstrate the strengths and weaknesses of the contralto voice. A workable definition of the voice type for the pedagogue and performer is included.

“In what ways does teaching with folk arts inspired visual arts-based instruction enhance community building among elementary students in a Title I school?” was the primary research question in this study. Agreeing with past and present day research that the construct of community is vital to social and cultural capital, this research attempts to determine how the notion of community benefits both students and teachers in the elementary art classroom. Folk art was utilized because this genre was accessible in terms of locality and familiarity among students and teachers. The purpose of this investigation was to produce teaching strategies and methods that show how community can be formed in the art classroom. The participants were elementary students, Grades 2 and 3, in a Title I school located in Denton, Texas. This investigation was conducted under an action research methodology. This approach to research is intended to be transformational, emergent, and accommodating. I recorded observations, field notes, and conversations from the participants. Emergent themes were discovered through content analysis and conceptual maps. Results from this investigation concluded transformation is only possible if the person wants change to happen. Data also showed that community and art education are symbiotic. Transformation, growth, and …

This mixed methods study investigated the influence of a career development program attended by low income, first generation, college bound students. Phase I took place in 2006 and 2007 when the students participated in the Upward Bound summer Bridge program. During Phase II in 2009, follow up interviews were conducted. Phase III was completed in 2014 and also included follow-up interviews. Career Identity (CI) scores from My Vocational Situation and Holland codes from the Self Directed Search were obtained during each phase. Changes in measured career identity scores and codes were interpreted by taking into account the students’ experiences. Interviews examined common themes demonstrating the career development of the participants.

In 1829, Passion settings entered the secular concert hall with Felix Mendelssohn’s revival of Bach’s St. Matthew Passion in Berlin. The genre has fallen in and out of favor with composers because of the subject matter and Bach’s prominence in the setting. James MacMillan’s St. John Passion has established itself as one of the preeminent modern passion settings by manipulating past idioms such as chant, chorales, and other popular passion conventions in concert with his use of Celtic folk idioms. He creates a passion experience that strives for a spiritually Catholic influence. This approach has earned praise and harsh criticism. MacMillan’s unique use of keening and the drone offers a uniquely Scottish passion that allows for Jesus’ crucifixion to be more poignant to the intended initial audience. In addition to his use of Celtic folk idioms, MacMillan uses added text; most central to this paper is The Reproaches. Movement eight (The Reproaches) is the emotional and musical climax of the work. This inclusion of text has shifted the climax, namely Jesus’s death and burial, to moments before his death. In addition, the value of the work as a liturgical work is lost by the inclusion of these texts, but a …

Spatial ability is the skill associated with mental relations among objects, the process of maintaining the physical aspects of an object after mentally rotating it in space. Many studies report a strong association of spatial ability with success in various areas of health care, especially surgery, radiology and dentistry. To date, similar investigations in professional nursing could not be located. Registered nurses, employed in an acute care multi-hospital setting, were surveyed using the Shipley-2Block Pattern Test, the Group Embedded Figures Test, and a newly created test of general nursing knowledge. The sample size of 123 nurses was composed of 31 male nurses and 92 female nurses. Data was collected between May and August of 2013 and analyzed using R, version 2.15.2. The present study did not demonstrate a statistically significant effect for gender differences on two measures of spatial ability. However, Cohen’s d effect sizes for mean gender differences in the present study are consistent with prior studies. This may suggest the nursing profession is comparable with other professions where males perform higher than females on spatial ability. The present study should be considered an initial step toward evaluating the relevance of spatial ability in the performance of nursing care.

A cross-sectional quantitative causal research design was employed to explore the relationship between adolescent digital aggression, cyberbully behavior and moral disengagement. A survey was created and electronically administered to 1077 high school students in Grades 9-12 in a selected school district in Texas. High school students were chosen because research has shown a decrease in traditional bullying and an increase of digital aggression and cyberbullying at this developmental level. A principal component analysis (PCA) of the survey was conducted to determine latent constructs. The results of the PCA revealed 6 latent variables, which included moral disengagement, school climate and culture, social relationships, spirituality, family systems, and mood (anger). Moral disengagement was the dependent variable in the current study, while the remaining latent constructs were treated as independent variables. In addition to the latent constructs, student demographics and self-identification as a cyberbully or cybervictim were included as independent variables in the one-way analysis of variance (ANOVA) and multiple regression models. An ANOVA of the survey items where the participants self-identified as a cyberobserver, a cybervictim or a cyberbully was initially conducted. Participants who identified as a cyberobserver explained less than 1.0% of the variance in moral disengagement. Additionally, participants who identified …