This validation study examined the Triple E Rubric for Lesson Design as a measurement tool to test the effectiveness of a lesson when using technology to support learning goals. This study also measured the content and concurrent validity as well as reliability of the Triple E Rubric developed by Liz Kolb.

Computational methods were employed to investigate catalytic processes. First, DFT calculations predicted the important geometry metrics of a copper–nitrene complex. MCSCF calculations supported the open-shell singlet state as the ground state of a monomeric copper nitrene, which was consistent with the diamagnetic character deduced from experimental observations. The calculations predicted an elusive terminal copper nitrene intermediate. Second, DFT methods were carried out to investigate the mechanism of C–F bond activation by a low-coordinate cobalt(I) complex. The computational models suggested that oxidative addition, which is very rare for 3d metals, was preferred. A π–adduct of PhF was predicted to be a plausible intermediate via calculations. Third, DFT calculations were performed to study ancillary ligand effects on C(sp3)–N bond forming reductive elimination from alkylpalladium(II) amido complexes with different phosphine supporting ligands. The dimerization study of alkylpalladium(II) amido complexes indicated an unique arrangement of dative and covalent Pd-N bonds within the core four-membered ring of bimetallic complexes. In conclusion, computational methods enrich the arsenal of methods available to study catalytic processes in conjunction with experiments.

This study explores where African American college students find mental health support and why those supports are chosen. Greater knowledge of the sources of mental health support sought by African American college students can assist higher education institutions in adapting current services to meet the needs of this specific student population. A qualitative phenomenological approach was utilized, and the study's sample included twelve participants, 6 female and 6 male, from a large public four-year university in Texas. These participants, undergraduate students with ages ranging from 18 to 24, were given a survey and completed two semi-structured interviews throughout one semester. Results indicated that study participants were more likely to utilize informal than formal support for their mental health and many had no source of support. Family stigma, peer attitudes, as well as internal and external pressures all influenced participant's choices to seek support. Based on findings from the study, recommendations for two distinct groups, counseling center directors and higher education administrators, are also discussed.

The liberation war was a watershed event in the history of Zimbabwe. According to the ZANU PF (Zimbabwe African National Union Patriotic Front) ruling elites, an understanding of the common experiences of the people during the liberation war provides the best opportunity to mold a common national identity and consciousness. However, the representation of important historical events in a nation's history is problematic. At best events are manipulated for political purposes by the ruling elites, and at the worst they are distorted or exaggerated. In Zimbabwe, the representation of the ZAPU/ZIPRA and the ZANU/ZANLA as liberation movements in high school history textbooks during the armed struggle is a hot potato. This study critically examined and explored the contested "representational practices" of the ZAPU/ZIPRA and the ZANU/ZANLA as liberation movements during the Zimbabwean armed revolution. By means of qualitative content analysis, seven high school history textbooks from Zimbabwe were analyzed. Drawing from postcolonial perspectives and insights, particularly Fanon's concept of the pitfall of national consciousness, the study unveiled the way in which Zimbabwean high school textbooks portrayed the ZAPU/ZIPRA and the ZANU/ZANLA as very different liberation movements whose roles and contributions were unequal. High school textbooks depicted the ZANU/ZANLA as a …

There is a growing expectation that school librarians function within their job descriptions beyond the role of reading promoter and resource manager. With college and career readiness standards, technology use and digital learning standards and information literacy standards now in place for student learning expectations, it is vital that students have opportunities to acquire, develop and practice such skills for future success in the global market economy. For students to receive such opportunities, there should be designed instruction delivered to students that allows for them to learn and practice information gathering techniques to access, use and apply information effectively, efficiently and ethically while developing technology skills within context of their content learning and real-world connections authentically. This study examined how school librarians conveyed information gathering techniques to students through a qualitative, constant comparative approach. Five middle school librarians in an urban school district participated in an observation and interview. Findings suggest that school librarians do claim an instructional role regarding information gathering and technology usage, although it manifests in diverse ways. Implications for future studies and practice suggest that the position become more defined such that the expectation to function in these roles is widely accepted by all stakeholders, and …

This qualitative case study explored how school district and campus-level administrators coordinate resources and services for currently enrolled homeless students. Participants in this study included three district-level administrators designated as the homeless liaison and three campus principals. Data collected and analyzed included audio recordings of semi-structured interviews of each participant, documents at the district and campus-levels, school board meeting notes, and research field notes. The findings suggested that district and campus stakeholders embraced a shared vision of collaborative policy implementation to support the needs of students living in homelessness conditions. Findings also suggested that moral purpose is reflected through the intentional, collaborative efforts of district and campus administrators. Additionally, the findings suggested that social capital develops in the collaborative processes between district and campus leaders while they broker resources to foster developing social capital of this student population. Mobilization of resources through collaborative policy implementation can foster cohesion while supporting students and can counter the impact of living in homelessness conditions.

Previous studies highlighted the importance of parental support for development of mastery of control and depressive symptoms. These studies tended to examine one time wave and outcomes related to that period, forwarding an assumption parenting behaviours do not change as children age. Using the National Longitudinal Survey of Youth 1979-Children and Young Adults, this study filled the gap by examining children's supportive environment at three time points and determining how levels of support across these points impacted children's depression and mastery at 18 years of age. Relative stability of mothers' supportive parenting (i.e., encouragement of social maturity, warmth and affection, and physical punishment) at early childhood, middle childhood, and early adolescence was examined by Kendall's tau correlations. Encouragement of social maturity showed relative stability between early and middle childhood and middle childhood and early adolescence; warmth and affection showed relative stability between early and middle childhood, and physical punishment showed relative stability across all time points. Absolute stability was examined using hierarchical linear modelling and Wilcoxon signed-rank test. No instances were found. Latent class growth analysis identified different trajectories of supportive environment among participants and three groups were identified. Multiple regressions conducted to examine how different trajectories affect late adolescents' …

There is a consistent need in many industries, especially oil and gas, to develop coatings which have higher corrosion resistance and better hardness to extend the lifetime of equipment when it is exposed to hostile environments. Electrodeposition has been a favorable method in the synthesis of metal coatings because of its low cost, convenience, ability to work at low temperatures, and ability to control surface morphology and structure. The inclusion of ceramic nanoparticles in metal matrix composites has previously been investigated as a technique to not only increase the corrosion resistance of the native metal but also to improve the hardness and mechanical properties. Cerium oxide nanoparticles were modified through the grafting of organic groups with increasing hydrophobicity for use in nickel coatings on stainless steel to further improve the corrosion properties while maintaining the hardness of the nanocomposite coatings. The process of modifying the cerium oxide nanoparticles involved the use of aryl diazonium salts and resulted in multilayers forming on the surface of the nanoparticles. Praseodymium oxide nanoparticles were also investigated as additives to nickel coatings, since praseodymium oxide has not yet been studied as a possible corrosion protection enhancement in coatings. These coatings were evaluated for composition and …

This research contributes to the cloud computing (CC) literature and information science research by addressing the reality of information sharing and storage behavior (ISSB) of the users' personal information via CC. Gathering information about usage also allows this research to address the paradox between the research and practice. Additionally, this research explores the concept of trust and its role in the behavioral change relative to CC. The findings help reconcile the paradox between the two realms. Essay1 develops and tests cloud computing usage model (CCUM) that assesses ISSB. This model considers the main adoption determinants and the main drawbacks of CC. The study measures the main concerns of users found in the literature, perceived security and perceived privacy. The findings prove surprising on these concerns. Using multiple regression to analyze 129 valid survey responses, the results find that CC users are less concerned about the major issues of security and privacy and will use the technology based on peer usage. Essay 2 examines why users ignore the technology issues and elect to replace the traditional mechanisms for handling their personal information. The results of an interview-based study conducted on 11 normal users and 11 IT professionals clarify their perceptions about …

Marijuana is the second most commonly used substance in the US. A growing literature suggests that socially anxious individuals use marijuana to manage their symptoms in social situations, which may explain why they are also more likely to experience problems. Unfortunately, the majority of the literature is based on research conducted with adult samples or the co-occurrence of diagnoses in adolescent samples. The proposed study sought to test the link between social anxiety (SA) and proxies for ‘real-time' marijuana use behaviors (i.e., use willingness) as well as use-related problems among adolescents. Participants were 69 adolescents (15-17; 55% female) recruited from the community reporting any lifetime marijuana use. Participants were randomly assigned to a novel social rejection or neutral laboratory task and completed measures of SA, marijuana use frequency, and related problems. Consistent with adult findings, main effects of SA and experimental condition on marijuana use willingness were expected to be qualified by an interaction in which the greatest marijuana use willingness would occur among high SA youth post-rejection (H1), SA would be positively related to marijuana use problems (H2), and among adolescents in the rejection condition, marijuana use willingness would be positively correlated with use problems (H3). Only H2 was …

A primary task of adolescence and young adulthood is to form and develop healthy romantic relationships. While the importance of sibling and romantic relationships have been examined separately, only recently have researchers begun to explore links between the two. The purpose of the present study was to investigate the connection between romantic competence and sibling relationships, especially sibling warmth and sibling conflict, as well as the role of sibling gender constellation in college-aged young adults. This study aimed to examine (a) whether there is an association between sibling relationship quality, such as sibling warmth and sibling conflict, and perceived romantic competence, and (b) the role of sibling gender constellation on the relationship between sibling relationship quality (sibling warmth and sibling conflict) and perceived romantic competence among undergraduate students. Correlation analyses indicated there was no statistically significant correlation between sibling warmth and perceived romantic competence (p > .05), whereas sibling conflict was statistically negative correlated with perceived romantic competence (p < .01). While sibling gender constellation did not have an interaction effect with sibling conflict on perceived romantic competence, which means sibling gender constellation did not have a moderating effect on the relationship between sibling conflict and perceived romantic competence. Limitations …

Modern cities are undergoing rapid expansion. The number of connected devices in the networks in and around these cities is increasing every day and will exponentially increase in the next few years. At home, the number of connected devices is also increasing with the introduction of home automation appliances and applications. Many of these appliances are becoming smart devices which can track our daily routines. It is imperative that all these devices should be secure. When cryptographic keys used for encryption and decryption are stored on memory present on these devices, they can be retrieved by attackers or adversaries to gain control of the system. For this purpose, Physical Unclonable Functions (PUFs) were proposed to generate the keys required for encryption and decryption of the data or the communication channel, as required by the application. PUF modules take advantage of the manufacturing variations that are introduced in the Integrated Circuits (ICs) during the fabrication process. These are used to generate the cryptographic keys which reduces the use of a separate memory module to store the encryption and decryption keys. A PUF module can also be recon gurable such that the number of input output pairs or Challenge Response Pairs (CRPs) …

Although trans* students often face greater levels of discrimination, harassment, and hostility on college campuses than their cisgender peers, research indicated that they can succeed by developing and honing survival strategies, such as resilience and being part of a trans* kinship network that resists trans* oppression. Having the support of family, and by taking the risk to cultivate relationships while in college also improves the likelihood of persistence through college. The term trans* is used in this study as an inclusionary term for transgender persons and other gender nonbinary identities. The purpose of this research study was to explore the experiences that trans* students have while being in college. Utilizing a phenomenological approach and the theoretical lens of feminist and queer theories, semi-structured interviews were conducted to better understand the lived experiences of trans* college students. Four Caucasian trans* undergraduate students, ranging in age from 19 to 25 were each interviewed five times. Twenty total interviews over a period of three months provided in-depth data. Five primary themes emerged that were common among the participants: exploration, experimentation, and self-discovery; living as a trans* person in college: developing survival strategies; cultivating relationships and seeking acceptance; race and gender privilege/power; and generational …

Geckos are famous for the skill of switchable adhesion that they use to stick on various surface while keep their fingers super clean. In the dissertation, a unique mechanism was discovered to explain gecko self-cleaning phenomena. Using atomic force microscopy (AFM), we managed to compare the microparticle-substrate adhesion and the microparticle-seta adhesion with a single seta bonded to the AFM cantilever. A dynamic effect was approved that high pulling-off speed could increase the microparticle-substrate adhesion and thus the self-cleaning appears at high moving speed. Based on the self-cleaning theory, a gecko-inspired N-doped graphene surface with switchable adhesion was achieved, which was designed into a bio-inspired micromanipulator with a success rate over 90%. When electrical bias was applied on this biomimetic surface, the charge concentration induced an electrical double layer (ELD) on the convex surfaces, which attracts polar water molecules to form a water bridge on it, significantly enhancing the adhesion on the wrinkled graphene surface, mimicking the capillary force on beetle feet. Therefore, the bio-inspired adhesive surface can be controlled with speed, electrical bias, humidity and different material surfaces. The water attraction phenomenon on the polarized surface was further tested for the potential application of water collection and evaporation in …

In this dissertation, we present a number of studies that primarily focus on data movement challenges among different types of memories (viz., 3D-DRAM, DDRx DRAM and NVM) employed together as a flat-address heterogeneous memory system. We introduce two different hardware-based techniques for prefetching data from slow off-chip phase change memory (PCM) to fast on-chip memories. The prefetching techniques efficiently fetch data from PCM and place that data into processor-resident or 3D-DRAM-resident buffers without putting high demand on bandwidth and provide significant performance improvements. Next, we explore different page migration techniques for flat-address memory systems which differ in when to migrate pages (i.e., periodically or instantaneously) and how to manage the migrations (i.e., OS-based or hardware-based approach). In the first page migration study, we present several epoch-based page migration policies for different organizations of flat-address memories consisting of two (2-level) and three (3-level) types of memory modules. These policies have resulted in significant energy savings. In the next page migration study, we devise an efficient "on-the-fly'" page migration technique which migrates a page from slow PCM to fast 3D-DRAM whenever it receives a certain number of memory accesses without waiting for any specific time interval. Furthermore, we present a light-weight hardware-assisted …

Pierre-Philippe Bauzin (1933-2005) was a skilled keyboard performer, improviser, and composer. By way of his close personal friendship with renowned saxophonist Jean-Marie Londeix, Bauzin began dedicating, composing, and often times performing music for saxophone with Londeix, beginning in 1959. The results of this friendship produced eleven original works for saxophone with diverse instrumentation, ranging from solo compositions to large ensembles. Due to Bauzin's preference for improvising the piano accompaniments of his music on each performance, however, a majority of his compositions were thought to be incomplete or lost. This study surveys Bauzin's complete opus for saxophone by way of both his published works, and the author's rediscovery of the manuscripts to these previously assumed lost compositions for saxophone. The pieces studied are Sonata no. 1 (1959), Poème (1960), Cinq Pièces Breves en Forme de Musique (1960), Esquisses (1967), Divertimento (1968), and Quatuor no. 1 (1962). In addition, chapter 8 provides information regarding other compositions for saxophone by Bauzin that did not survive in their completed form. The survey of each work contains information pertaining to creation, performances of significance in saxophone history, and compositional techniques present within each work that can be used to identify the components of Bauzin's unique …

The modern piccolo trumpet is required by professional trumpet players for the performance of solo repertoire, chamber music, orchestra, and wind band. Students in universities around the world study the piccolo trumpet in preparation for professional careers, but relatively few pedagogical tools exist to specifically focus on the nuanced techniques of the instrument such as articulation, range, and sound production. The purpose of this project is to create a pedagogical guide that can serve as a method for students learning the modern piccolo trumpet.

Christopher Rouse (b. 1949), winner of the Pulitzer Prize for his Trombone Concerto (1993) and a Grammy award for his Concerto de Gaudi (1999), has come to the forefront as one of America's most prominent orchestral composers. Several of Rouse's works feature quotations of and strong allusions to other composers' works that are used both rhetorically and structurally. These borrowings range from a variety of different genres and styles of works, from Claudio Monteverdi's L'incoronazione di Poppea to Jay Ferguson's "Thunder Island." Due to the more accessible filtering and funneling methods of musical borrowings (proliferation of mass media), the weighty discourses attached to them, and their variety of functions (critiquing canons, engaging in an allusive tradition, etc.), quotation has become elevated to the most prominent of musical actors that trigger narrative listening strategies, which in turn have a stronger role in the formation of narratives about music as well as narratives of music. The primary aim of this study is to adapt and apply more recent methodological narrativity frameworks to selected instrumental compositions by Rouse containing quotations, suggesting that their manner of insertion, their method of disclosure, and their referential potential can benefit from being examined through various narrative lenses …

Alberto Nepomuceno (1864-1920) is considered to be the father of the Brazilian art song. With a total of seventy songs, Nepomuceno revolutionized and established a new path to the Brazilian art song. His songs were innovative because they: (1) incorporated folk elements in his songs, (2) introduced Portuguese as a language acceptable in bel canto style and (3) established Brazilian songs in the tradition of the European vanguard. His approach influenced several composers including his young student Heitor Villa-Lobos (1887-1959), one of the most significant Latin American composers. The purpose of this research is to inform singers and teachers about one of Brazil's most significant art song composers, and to provide the necessary tools--Brazilian Portuguese diction guide, IPA and poem translations of the selected songs--for effective and accurate performances and interpretations.

Alexander Tcherepnin (1899-1977) was a Russian-born American composer, his musical style represents the modern and diverse features of much twentieth-century piano music. The purpose of this research is to conduct a comprehensive pedagogical analysis of Alexander Tcherepnin's Bagatelles, Op. 5 with the goal of introducing contemporary characteristics in twentieth-century piano music for the late-intermediate student. Chapter 2 contains overall biographical information regarding Alexander Tcherepnin and a discussion of the general compositional style of his piano works. Chapter 3 analyzes the Bagatelles, Op. 5 from the perspective of musical challenges concerning the contemporary characteristics, including contemporary harmony: interval of seconds, non-tertian chords, special use of the seventh chords, and ninth chords; contemporary rhythm and meter: shifted accents, asymmetric meter, meter change, and ostinato; modal melodic resources and tonalities; and other special tonalities. Chapter 4 has suggestions on fingering, pedaling, articulation, tone, dynamics and phrasing, and practicing procedures for individual technical difficulties. Studying the Bagatelles, Op. 5 provides a transition for the student from learning standard repertoire of the eighteenth and the nineteenth century, to contemporary repertoire through the combination of Russian compositional traditions with twentieth century repertory.

Giovanni Legrenzi was a prolific composer of vocal music and maestro di cappella at the Basilica di San Marco but his vocal works are not often studied as a part of the Venetian lineage with composers such as Willaert, de Rore, Zarlino, Monteverdi, Cavalli, and Vivaldi. Despite his being a prolific composer who had significant influence on the work of other musicians in the traditional canon, references to Legrenzi in standard music publications (Grout, Taruskin, Grove Music Online, etc.) are at best sparse, and largely biographical. This dissertation is one step to correct that pattern by creating a performance edition of Sacri e festivi concenti, Opera nona, one of Legrenzi's significant works near the beginning of his Venetian period. This collection of sacred music was published on 12 June 1667 in Venice though Legrenzi's exact whereabouts at the time remain uncertain. This phase of his career can be defined by his having sought more prestigious and lucrative employment. Having lived and worked in rural Lombardy and Ferrara, he made unsuccessful overtures in places such as Milan, Bologna, Vienna, and Paris. A full score has been produced by transcribing from the part books of the Bologna Museo copy, which will allow …

Franz Liszt's Faust Symphony has suffered neglect since its premiere in 1857. The analysis in this study aims to clarify some of the misunderstandings which have led to this neglect, particularly concerning Liszt's formal structure and character portrayal. In the Faust movement, the flat 6th scale degree (♭6) plays a prominent role in harmonic organization. Nineteenth-century composers sometimes used the distinct sonic color of chromatic-third progressions, as Liszt does here between C and E rather than diatonic movement by fifth to evoke a distant dream-world state. Liszt's conspicuous and form-defining use of ♭6 in the Faust movement suggests fantasy and mysterious elements ripe for programmatic interpretation. In this dissertation, I will attempt to clarify how Liszt portrayed the character of Faust by using the flat 6th scale degree as a crucial harmonic organizing principle in the Faust movement.

This dissertation examines the work of German composer and vocal pedagogue Nina d'Aubigny von Engelbrunner through her collection of songs entitled "Deutsche, Italienische und Französische Gesänge mit Begleitung des Pianoforte," published in 1797. A brief overview of the life and works of Ms. d'Aubigny is provided, followed by a discussion about the "woman question" as it relates to Ms. d'Aubigny's works. The second part of this project includes a new, modern performance edition of the collection of songs, complete with general editorial guidelines, notes and translations, and a critical report detailing all deviations from the original 1797 edition.

María Grever (1885-1951) overcame racism and gender bias during a pivotal era in American music history to become the first commercially successful Mexican female composer and more specifically, a pioneer of popular music during the first half of the 20th century. Though named the "Madonna of song," her legacy is largely overshadowed by other compositional giants of the era, such as the Gershwin brothers, Cole Porter, and Irving Berlin. Grever's music is sophisticated, heartfelt, and worthy of attention. Her colorful, genuine music adds distinctiveness and variety to recital programs. Grever's songs offer a high level of musical integrity and socio-cultural value. Incorporating her compositions into a singer's vocal repertoire is an excellent way to broaden the scope of styles and languages while maintaining the highest standards of musical study. The following document considers the importance of performing and studying Grever's music by analyzing nine songs representing three compositional periods. I evaluated the songs considering pedagogical benefit, performance value, and significance to her overall oeuvre.