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Extended Date/Time Format (EDTF) in the Digital Public Library of America's Metadata: Exploratory Analysis
This paper presents results of an exploratory analysis of representation of dates in over 8 million metadata records from the Digital Public Library of America (DPLA), and compares it to Extended Date/Time Format (EDTF) specifications.
Intersections of Scholarly Communication & Information Literacy Workshop: Final Report
This report documents the Intersections of Scholarly Communication & Information Literacy Workshop project funded through the 2017 Dean's Innovation Grant. The final report describes Intersections of Scholarly Communication & Information Literacy Workshop project activities, budget, outcomes, best practices, and sustainability.
UNT Libraries Serials List Data Dictionary FY 2017-2018
This document represents contains information regarding subscriptions purchased by UNT Libraries, along with pricing information for the 2013-14, 2014-15, 2015-16, 2016-17, and 2017-18 fiscal years.
Vendor Relations: Evolving Ethos & Etiquette
Presentation delivered at the 2018 Louisiana Virtual Academic Library Conference. This presentation describes the University of North Texas Libraries' multi-year effort to improve vendor relations by proactively preventing problems and by responding effectively to new situations as they arise.
Understanding Open Access Ebook Usage: Toward a Common Framework
Slides accompanying the panel presentation “Understanding Open Access Ebook usage: Toward a Common Framework” presented at the 2018 Charleston Conference: Issues in Book and Serial Acquisition.
Finding the Right Words: User-generated description of television news collections: Final Report
This report documents the Finding the Right Words: User-generated description of television news collections project funded through the 2017 Dean's Innovation Grant. The final report describes project activities, budget, outcomes, best practices, and sustainability.
The Portal to Texas History User Guide Video: Final Report
This report documents The Portal to Texas History User Guide Video project funded through the 2017 Dean's Innovation Grant. The final report describes The Portal to Texas History User Guide Video project activities, budget, outcomes, best practices, and sustainability.
History 9-1-1: How University of North Texas Libraries Save Newspaper Runs through the Texas Digital Newspaper Program
Presentation for the 2018 International Federation of Library Associations and Institutions International News Media Conference. This presentation describes how the Texas Digital Newspaper Program partners with other libraries and museum to preserve materials, and how this can act as a safeguard after natural disasters in the area.
Government Documents for the Family Historian
Presentation for the Tulsa City-County Library. This presentation discusses how government information can be used for genealogical research and example information types found within government documents.
It's in the Bag--Creating Sustainability in the Faculty Book Delivery Service: Final Report
This report documents the It's in the Bag--Creating Sustainability in the Faculty Book Delivery Service project funded through the 2017 Dean's Innovation Grant. The final report describes the It's in the Bag--Creating Sustainability in the Faculty Book Delivery Service project activities, budget, outcomes, best practices, and sustainability.
Our Users, Our Selves: Evaluating user experience on The Portal to Texas History
Presentation for the 2018 Texas Library Association Annual Conference. This presentation describes the development and results of a usability study to understand how users navigate The Portal to Texas History.
Call and response: Engaging with African American male students through culturally relevant music resources: Final Report
This report documents the Call and response: Engaging with African American male students through culturally relevant music resources project funded through the 2017 Dean's Innovation Grant. The final report describes project activities, budget, outcomes, best practices, and sustainability.
The Portal to Texas History: Walking in the Footprints of History
Presentation for the Cedar Hill Genealogy Society. This presentation describes how The Portal to Texas History can facilitate genealogical research.
[Library Preservation Staff 1981-1982]
Series of seven photographs of staff members in the UNT Libraries preservation department, mounted on a board with a green edging, stamped "1981-1982" at the bottom. The center image is a group portrait of all six staff members posing together in the office; each of the other photographs shows one of the staff members at work in his/her own space.
[NTSC Bookbindery Staff]
Series of portraits organized around text in the center that says, "25th anniversary, Library Bookbindery n. t. s. c. 1928-1953." There are fourteen total images, most of which are individual portraits of staff members; images in the center of the top and bottom rows show staff working in the bookbindery office.
Policy-based collaborative approaches to preserving electronic government information
Presentation at iPRES 2018, the 15th International Conference on Digital Preservation. The presentation outlines a panel discussion on the preservation of electronic government information.
Panel Proposal: Policy-based collaborative approaches to preserving electronic government information
Panel proposal for iPRES 2018, the 15th International Conference on Digital Preservation. This proposal outlines a panel discussion on the preservation of electronic government information, including a brief discussion of the need for digital preservation efforts and an overview of the Preservation of Electronic Government Information (PEGI) Project.
What's the Real Story? SLI Session Addresses Challenge of Fake News
This article discusses a session on "Fake News and the Fate of Our Democracy" at the 2018 Texas Association of School Boards Summer Leadership Institute, and provides information on resources and strategies for assessing the legitimacy of news information.
2018 Texas Sentate Debate Twitter Dataset
This dataset contains Twitter JSON data for Tweets related to the United States Senate race between Beto O'Rourke and Ted Cruz. This dataset contains Tweets captured around their first debate on September 21, 2018. This dataset was created using the twarc (https://github.com/edsu/twarc) package that makes use of Twitter's search API. A total of 3,006,198 Tweets and 101,050 media files make up the combined dataset.
Hurricane Florence Twitter Dataset
This dataset contains Twitter JSON data for Tweets related to Hurricane Florence and the subsequent flooding along the Carolina coastal region. This dataset was created using the twarc (https://github.com/edsu/twarc) package that makes use of Twitter's search API. A total of 4,971,575 Tweets and 347,205 media files make up the combined dataset.
Cosmophonia: Musical Expressions of Astronomy and Cosmology
Astronomy and music are both fundamental to cultural identity in the form of various musical styles and calendrical systems. However, since both are governed by incontrovertible laws of physics and therefore precede cultural interpretation, they are potentially useful for insight into the common ground of a shared humanity. This paper discusses three compositions inspired by different aspects of astronomy: Solstitium e Equinoctium, a site-specific composition for four voices and metal pipes involving an inclusive communal musical ritual and sonic meditation; Helios, a short symphonic work inspired by helioseismology; and Perspectives, a piece for soprano and percussion based on a logarithmic map of the universe.
[Dataset: Jin gang jing xin jing gan ying tu shuo 金剛經心經感應圖說 pp. 31-32]
3D dataset model of a xylographic woodblock containing pages 31-32 of "An Illustrated Explanation of Miraculous Response Appended to the Heart Sutra and Diamond Sutra," an ancient Buddhist text published by Zhu Xuzeng 朱續曾 in 1798. The woodblock is one of 37 held by the University of California Los Angeles (UCLA) Library Special Collections. The block contains 8 lines per half page , 15 characters per line, white block-heart, double borders, a single fish tail (8 行 15 字, 白口, 左右雙邊, 單黑魚尾)
Making+ Learning in Museums and Libraries A Practitionaer's Guide and Framework
Many libraries and museums have recently invesetd resources to implement maker programs or makerspaces. This project defines “making” as building or adapting objects using real tools and real materials and engaging learners in the process of using these tools and materials. While these programs and spaces serve a variety of goals, they overwhelmingly serve as sites of ambitious learning. As the maker movement grows by leaps and bounds, the field itself knows relatively little about how to support learning within these spaces. This report introduces a framework to support learning in library and museum makerspaces. There are three elements to the framework: purpose; people; and pieces and parts. Through a description of the framework, as well as case studies on how making and makerspaces are being implemented around the country, this document aims to share ways that we can nurture and grow conditions for learning within making experiences.
Strengthening Networks, Sparking Change: Museums and Libraries as Community Catalysts
This document brings together the preliminary literature and practice survey with the experiences and vision of those working to spur change in their communities every day. It catalogs how these efforts are initiated and sustained; the tools and methods available to assess community need and evaluate impact; and the skills and competencies required to implement and sustain new efforts successfully. It also uses the concepts of social wellbeing and collective impact to situate museums and libraries as critical sites within broader institutional and interpersonal networks of community resources. These are complementary conceptual frameworks to help museums and libraries contextualize and tailor their efforts to catalyze positive change. Together. The document is divided into the following sections: • The Introduction traces the increasing importance of anchor institutions (typically universities and hospitals) to contextualize the evolving efforts of museums and libraries and the broad content areas in which they are expanding their activities. It also presents the social wellbeing and collective impact frameworks that are referenced throughout the document. • The Continuum of Museum and Library Community Initiatives describes the types of efforts that can improve social wellbeing for residents. This section catalogs key considerations for museums and libraries as they design community-focused efforts. • Understanding Assets and Challenges, and Evaluating Impact summarizes effective methods for assessing community assets, needs, and approaches to evaluating the impact of museum and library efforts to promote the wellbeing of their communities. • Building Capacity to Support and Spark Change reviews the requisite skills and competencies required of community-centered institutions and provides considerations for obtaining them through staff development, hiring practices, or partnership. • The Conclusion summarizes key themes from each section to highlight opportunities for museums and libraries to catalyze change in their communities going forward.
2016 Performance and Accountability Report
The FY 2016 Performance and Accountability Report for the Institute of Museum and Library Services comes as IMLS begins a yearlong celebration marking its 20th Anniversary. In the last 20 years, IMLS has worked to benefit libraries of all types: public, research, academic and tribal; and museums of all disciplines: history, botanic gardens, aquariums, science and technology centers, children’s museums and zoos. With the help of a range of partners, IMLS has inspired libraries and museums to advance innovation, learning and civic engagement. That work will continue into the coming years as libraries and museums are urged abd encouraged to “Reimagine the Future” and how they can best serve the communities in which they reside. Those goals are reflected in this year’s report: to continue to focus on creating a nation of learners by preserving and providing broad public access to collections and content; and promoting policies that ensure robust library, museum, and information services for all Americans. IMLS continues to be an outstanding steward of federal funds and will continue to look for ways to achieve even greater impact on library and museum services throughout the United States.
Open Digital Preservation Training and Professional Development Opportunities
Interest in digital preservation training and professional development opportunities is extensive, however, a common understanding of the open materials – ones that are freely available for use online – and how they might be used most effectively is still limited. The digital preservation community, those who shepherd digital collections through the lifecycle for a variety of organizations, would benefit from a common understanding of freely available open training materials. Digital preservation continuing education is valuable to a number of organization types, from small to large, as well as a wide range of practitioners at various points in their careers. Museums, libraries, and archives of all sizes benefit greatly from freely available continuing educational materials on digital preservation topics, as do many other organizations with an interest in preserving digital content for future use. Frequently, learners new to the profession are uncertain as to where to acquire specific digital preservation knowledge, issues, and skills. Similarly, working professionals may need to expand their roles or desire to broaden their knowledge and skill-set. Training to meet these needs necessarily occurs outside of formal educational settings, relying on the learner’s ability to locate resources that are relevant to their goals. It is the purpose of this report to begin establishing a common understanding of the types of open digital preservation training materials available, to identify topics around which additional materials should be developed, and recommend ways to increase the effectiveness, use, and reuse of open training materials.
Public Libraries in the United States Fiscal Year 2014
The Institute of Museum and Library Services (IMLS) is the primary source of federal support for the nation’s approximately 123,000 libraries and 35,000 museums and related organizations. Our mission is to inspire libraries and museums to advance innovation, lifelong learning, and cultural and civic engagement. Our grant making, policy development, and research help libraries and museums deliver valuable services that make it possible for communities and individuals to thrive. As part of its mission, IMLS conducts policy research, analysis, and data collection to extend and improve the nation’s museum, library, and information services. IMLS research activities are conducted in ongoing collaboration with state library administrative agencies; national, state, and regional library and museum organizations; and other relevant agencies and organizations. IMLS research activities are designed to provide consistent, reliable, complete, and accurate indicators of the status and trends in library and museum services and to report timely, useful, and high-quality data to Congress, the states, other policy-makers, practitioners, data users, and the general public. Accordingly, IMLS is responsible for providing policymakers, researchers, and the general public with information about public libraries in the United States. Public libraries have a long tradition of serving as community anchors—providing a wide array of services and resources in communities. The Public Libraries Survey (PLS), under the Museum and Library Services Act of 2010 administered by IMLS, collects annual data about the ways in which public libraries serve their communities. Since 1989, the PLS has documented the ways that modern public libraries have responded to an increasingly diverse public with broader information needs. This information not only helps to identify areas of activity and community engagement but also can uncover opportunities for further services and reach. The PLS is a national census that collects information from public libraries in 50 states, the District of Columbia, ...
NDP at Three
The NDP at Three report describes grants and explores themes which emerged from the first three years of grant-making under the national digital platform (NDP) funding area in the IMLS Office of Library Services.
Performance and Accountability Report Fiscal Year 2017
The Institute of Museum and Library Services (IMLS) is an independent grant making agency and the primary source of federal support for the nation’s approximately 120,000 libraries and 35,000 museums and related organizations. IMLS helps ensure that all Americans have access to museum, library, and information services. The agency supports innovation, lifelong learning, and cultural and civic engagement, enabling museums and libraries from geographically and economically diverse areas to deliver essential services that make it possible for individuals and communities to thrive. The agency’s mission is to inspire libraries and museums to advance innovation, learning, and civic engagement and to provide leadership through research, policy development, and grant making.Those goals are reflected in this year’s report as IMLS continues to be an outstanding steward of federal funds. IMLS will continue to look for ways to achieve even greater impact on library and museum services throughout the United States.
Stepping Up to the ConnectED Library Challenge: A Call to Action
In April 2015, President Obama launched the ConnectED Library Challenge to ensure that all school children have access to the learning resources available in public libraries. The report highlights the responses of communities across the nation to answer the White House’s challenge to public librarians, superintendents, and public officials to collaborate so that every student has access to the many learning resources of their local library. The report outlines the conditions gleaned from these responses that point to indicators of successful partnerships and some of the many different forms these collaborations are taking.
National Cyber Strategy of the United States of America
With the release of this National Cyber Strategy, the United States now has its first fully articulated cyber strategy in 15 years. This strategy explains how the US will: Defend the homeland by protecting networks, systems, functions, and data; Promote American prosperity by nurturing a secure, thriving digital economy and fostering strong domestic innovation; Preserve peace and security by strengthening the ability of the United States — in concert with allies and partners — to deter and, if necessary, punish those who use cyber tools for malicious purposes; and Expand American influence abroad to extend the key tenets of an open, interoperable, reliable, and secure Internet. The new U.S. cyber strategy seeks to allay some of those concerns by promoting responsible behavior in cyberspace, urging nations to adhere to a set of norms, both through international law and voluntary standards. It also calls for specific measures to harden U.S. government networks from attacks, like the June 2015 intrusion into the U.S. Office of Personnel Management (OPM), which compromised the records of about 4.2 million current and former government employees. And the strategy calls for the U.S. to continue to name and shame bad cyber actors, calling them out publicly for attacks when possible, along with the use of economic sanctions and diplomatic pressure.
Genomic Island Discovery through Enrichment of Statistical Modeling with Biological Information
Horizontal gene transfer enables acquisition and dissemination of novel traits including antibiotic resistance and virulence among bacteria. Frequently such traits are gained through the acquisition of clusters of functionally related genes, often referred to as genomic islands (GIs). Quantifying horizontal flow of GIs and assessing their contributions to the emergence and evolution of novel metabolic traits in bacterial organisms are central to understanding the evolution of bacteria in general and the evolution of pathogenicity and antibiotic resistance in particular, a focus of this dissertation study. Methods for GI detection have also evolved with advances in sequencing and bioinformatics, however, comprehensive assessment of these methods has been lacking. This motivated us to assess the performance of current methods for identifying islands on broad datasets of well-characterized bacterial genomes and synthetic genomes, and leverage this information to develop a novel approach that circumvents the limitations of the current state-of-the-art in GI detection. The main findings from our assessment studies were 1) the methods have complementary strengths, 2) a gene-clustering method utilizing codon usage bias as the discriminant criterion, namely, JS-CB, is most efficient in localizing genomic islands, specifically the well-studied SCCmec resistance island in methicillin resistant Staphylococcus aureus (MRSA) genomes, and 3) in general, the bottom up, gene by gene analysis methods, are inherently limited in their ability to decipher large structures such as GIs as single entities within bacterial genomes. We adapted a top-down approach based on recursive segmentation and agglomerative clustering and developed a GI prediction tool, GEMINI, which combined compositional features with segment context information to localize GIs in the Liverpool epidemic strain of Pseudomonas aeruginosa. Application of GEMINI to the genome of P. aeruginosa LESB58 demonstrated its ability to delineate experimentally verified GIs in the LESB58 genome. GEMINI identified several novel islands including pathogenicity islands and revealed the ...
Infinitely Many Solutions of Semilinear Equations on Exterior Domains
We prove the existence and nonexistence of solutions for the semilinear problem ∆u + K(r)f(u) = 0 with various boundary conditions on the exterior of the ball in R^N such that lim r→∞u(r) = 0. Here f : R → R is an odd locally lipschitz non-linear function such that there exists a β > 0 with f < 0 on (0, β), f > 0 on (β, ∞), and K(r) \equiv r^−α for some α > 0.
Conditions for Teaching Writing: Exploring Two Cases of Seventh Grade Expository Writing Instruction
This qualitative two-case study draws from the intersection of three theoretical perspectives: sociocultural theory, transactional theory, and complex systems theory. Guided by two research questions, this qualitative study explored the conditions two seventh grade English language arts teachers set for teaching expository writing and their implications. Deductive coding based on seven a priori patterns of powerful writing instruction (empathy, inquiry, dialogue, authenticity, apprenticeship, re-visioning, and deep content learning) revealed six conditions for teaching expository writing. Inductive pattern analysis of these conditions revealed three emergent themes: reinforcing structures, mediating transactions, and balancing tensions. These findings suggest that teaching expository writing is a complex system filled with dialectical relationships. As interdependent pairs, these relationships encompass the entire system of expository writing instruction, including the structural and transactional aspects of teaching and learning to write. The overlapping conditions and themes demonstrate that expository writing appears ambiguous at times; however, routine, yet responsive instruction, framed by apprenticeship and a balance of reading and writing activities designed to inspire self-discovery are fundamental to the process of teaching expository writing. The final chapter includes instructional implications and a discussion about the significance of setting conditions for generative literacy learning. Recommendations for future research include writing research based on complexity theory, connections between expository writing and empathy, and critical thinking relative to critical action.
Measurement of Fidelity and Social Validity: Caregiver Application of Trial-Based Functional Analysis Procedures
The present study utilized multiple-baseline and multi-probe across participants designs to measure both fidelity and efficacy of caregivers as primary interventionists when using trial-based functional analysis (TBFA) procedures. Participants included any caregiver of a child with a medical or educational diagnosis of autism and challenging behavior. Caregiver fidelity of implementation of TBFA procedures was measured across three phases: baseline, training, and independent implementation or generalization. Within the implementation phase, caregivers independently conducted TBFAs on their respective children within the home setting. Fidelity, efficacy, and social validity across each participant were measured. Each caregiver was able to reach fidelity during the training phase, and three out of five caregivers were able to identify a clear behavior function for their child's behavior within the implementation phase of the study. Social validity was evaluated. Results indicate that caregivers may be able to supplement traditional interventionists during the TBFA process. Implications for future practice are reviewed.
Differential Associations between Psychopathy Factors and Shooter Bias in the Police Officer's Dilemma
The current study assessed abnormal attention in 71 undergraduate men, approximately half of which displayed elevated psychopathic traits, as they attended to cues on the Police Officer's Dilemma. In the computerized task, participants are instructed to shoot men holding guns and not shoot men holding neutral objects. However, research has shown that irrelevant racial cues in the task can influence participants to shoot unarmed Black men more frequently than unarmed White men; a phenomenon termed shooter bias. Contrary to expectations, individuals with elevated psychopathic traits tended to erroneously shoot unarmed Black men more frequently compared to those with low psychopathy scores. Additional analyses indicated that the interpersonal and lifestyle facets were associated with more interference in determining unarmed Black men as not threatening relative to unarmed White men and the affective domain was associated with faster responses to shooting armed Black men relative to armed White men. Additionally, prejudicial attitudes (i.e., social dominance orientation) moderated the relationship between the affective psychopathic traits and shooting armed Black men by increasing the number of armed Black men identified as threatening relative to armed White targets. These findings are discussed in the context of the relationship between psychopathic traits and prejudicial attitudes and recent refinements to etiological theories of psychopathy.
Religious Identity and Interreligious Communications: Predicting In-Group and Outgroup Bias with Topic-Sentiment Analysis
Intergroup relations and the factors affecting them constitute a subject of recurring interest within the academic community. Social identity theory suggests that group membership and the value we assign to it drives the expression of in-group favoritism and outgroup prejudice, among other intergroup phenomena. The present study examines how (ir)religious identities are related to topic-sentiment polarization in the form of positive in-group and negative outgroup bias during interreligious debates in YouTube commentaries. Drawing from the propositions of social identity theory, six hypotheses were tested. The data for the study, a product of a natural experiment, are comments posted on YouTube commentary sections featuring videos of interreligious debates between (a) Christian and atheist or (b) Christian and Muslim speakers. Using topic-sentiment analysis, a multistage method of topic modeling with latent semantic analysis (LSA) and sentiment analysis, 52,607 comments, for the Christian - atheist debates, and 24,179 comments, for the Christian - Muslim debates, were analyzed. The results offer support (or partial support) to the hypotheses demonstrating identity-specific instances of topic-sentiment polarization to the predicted direction. The study offers valuable insights for the relevance of social identity theory in real-world interreligious interactions, while the successful application of topic-sentiment analysis lends support for the more systematic utilization of this method in the context of social identity theory.
Interpersonal Functioning and Experiential Avoidance: Considering New Measurements and Their Implications
Interpersonal functioning can be conceptualized as being comprised of social skills, connectedness, social cognition, and intimacy. A concept that is related to an examination of interpersonal functioning is experiential avoidance (EA), which can be defined as an unwillingness to experience or remain in contact with unpleasant private events through attempts to avoid or escape from these experience. An examination of EA and interpersonal functioning has not previously taken place. This study thus sought to fill that gap in the literature. The availability of a behavioral-oriented measure of interpersonal functioning aided in this investigation. The relationship of EA and interpersonal functioning to depression and anxiety were also examined, in order to evaluate their relative contributions to psychopathology. Overall, it was found that EA and interpersonal functioning were significantly related. However, the dimensions of EA varied in strength with respect to their relationships with interpersonal functioning. Further, it was found that interpersonal functioning predicted unique variance in both depression and anxiety, and partially mediated the relationship between EA and both anxiety and depression. These results might guide the development of treatment programs and add support to the use of treatments with trans-diagnostic targets.
Mental Illness Stigma, Parent-Child Communication, and Help-Seeking of Young American Adults with Immigrant Parents
This study examined a mediational model of mental illness stigma, parent-child communication about mental health concerns, and help seeking attitudes/behaviors among young adults with at least one immigrant parent while considering the possible moderating effect of acculturation gap. The primary goal of this study was to examine whether the acculturation gap changed the relation between mental illness stigma and communication about personal mental health concerns with immigrant parents, which in turn could become a significant predictor of their help-seeking attitudes, as well as a barrier to seeking professional mental health services. Findings provided support to the direct and indirect effects of mental illness stigma through communication about mental health concerns on attitudes about help-seeking. The acculturation gap hypothesized to be a possible moderator for the stigma-communication about mental health concerns relationship among young adult ABCI was found to be significant for ABCI with a low mainstream culture acculturation gap. Discussion on the findings, limitations of the study, future research directions, and counseling implications are addressed.
It's the Kids! Examining Early-Career Elementary General Music Teacher Longevity in Title I Settings
The purpose of this study was to investigate factors contributing to the longevity of four early-career (5 to 10 years of experience) K–5 elementary general music teachers in Title I schools situated in four regions of the United States. The central research question was: How did early-career elementary general music teachers in Title I schools describe the opportunities and challenges that contributed to their decisions to continue teaching? Using Deci and Ryan's theory of self-determination as a theoretical framework, I analyzed how the four teachers reflected on the degree to which they each possessed autonomy, competence, and relatedness through recounting their perspectives, stories, and experiences. Although the participants shared many commonalities, they also experienced challenges and opportunities unique to their teaching environments. Results were mixed regarding their levels of autonomy and relatedness, but all four teachers possessed a high level of competence, which was likely a contributing factor to their longevity and potential to continue teaching. Nurture and care for children also emerged as a prominent theme from the results, which required the application of a separate theoretical framework. Noddings's theory of the ethic of care served as a lens for examining the myriad ways each participant demonstrated love, care, and concern for her students. All four teachers strongly expressed the important role their love of working with children and seeing them grow, progress, and learn played in their desire to continue teaching. Of all the contributing factors, the participants' ethic of care seemed to be the most significant influence on their decisions to continue teaching. They also spoke extensively about the role of their love for music as a subject. Conclusions address implications for the field and recommendations for future research.
Suona la tromba: A Discussion of the Trumpet Aria through the Works of Giovanni Legrenzi and Carlo Pallavicino
The early trumpet arias by Giovanni Legrenzi and Carlo Pallavicino are important works in the trumpet repertoire that have remained relatively unpublished and unstudied. This dissertation will look at the history of the trumpet in opera, discuss the development of the trumpet aria, and provide examples of how to approach the performance of the trumpet aria. Through study and performance of the early trumpet arias by Legrenzi and Pallavicino, trumpet soloists will be able to learn the necessary techniques to collaborate with singers and perform all trumpet arias.
The Impact of Teacher Professional Development on Student Achievement at a North Texas High School as Measured by End-of-Course Assessments in Algebra I and English Language Arts
The purpose of this study determined if a significant relationship existed between the amount of professional development that teachers participated in and the impact on the classroom instruction that followed. The goal was to study the effect that this had on student achievement in the State of Texas Assessment of Academic Readiness (STAAR) for English 1 and Algebra 1 for students at a large north Texas high school. Testing years for the study included the school years 2013-14, 2014-15, and 2015-16. Additional variables included the work in three areas of teacher professional development over the three-year period. Fourteen teachers, in two subjects, were studied in their implementation of classroom instruction. Particular attention was given to the instructional changes, and the number of hours of professional development in the areas of instruction, technology, and differentiation. Teachers were given opportunities to participate in 18 hours of professional development in all three areas in each of the three years. Teachers were then asked to incorporate the work that they completed each year into their day to day classroom instruction. The goal of the implementation of the professional development in addition to the curricular specifics regarding instruction of state standards was expected to produce increased state scale score marks for the students in the classes. Results of the study indicated success for students in the area of English 1 end-of-course assessment. From the beginning of the study, where student success rates in English state assessment was calculated at 47% overall passing rate, to the completion of the study, where student success was charted at 70% overall passing rate, significant changes were noted. In addition to the improvements made in English I, there were also significant changes made in the approaches to the Algebra 1 assessment. Classroom instructional practices were noted as much improved, and ...
Operationalizing Listening-to-Question and Questioning-to-Listen in Mathematics Teaching
This study focused on the evaluative listening practices of four teachers who participated in an algebra professional development involving lesson study. This instrumental case study operationalizes the enactment of teacher listening followed by teacher questions and responses to define listening-to-question. Also, questioning-to-listen is operationalized as the enactment of purposefully posing questions to posture oneself to listen to students' mathematical thinking. Because of the tacit aspect of teacher listening and the visibility of teacher questioning, interrelating listening and questioning affords teachers an accessible point of entry into developing listening practices. In response to participants wondering as to when evaluative listening is appropriate in the mathematics classroom, this study discusses six instances of teaching excerpts along a continuum of listening orientations from directive to observational to responsive. The results indicate positive aspects of evaluative listening towards an observational and responsive listening stance. Results of the study also confirm a reliance on low-order gathering information questions as the predominant type of teacher question posed in mathematics teaching. This study reveals the necessity of contextualizing teacher questions to inform appropriate uses of evaluative listening. Future professional development should consider emphasizing positive aspects of evaluative listening in mathematics teaching.
Analysis of Young and Mature Thrombocytes in Zebrafish
Eukaryotic platelets are small cell fragments that are released into the bloodstream from megakaryocytes, and their production is initiated in the bone marrow. They are mainly involved in blood hemostasis and thrombus formation. The newly synthesized platelets are called reticulated platelets or young platelets. Zebrafish thrombocytes are equivalent to mammalian platelets and have similar characteristics and functions. Likewise, zebrafish has both young and mature thrombocytes. Only young thrombocytes as reticulated platelets are labeled with thiazole orange. Similarly, labeling zebrafish thrombocytes with a specific concentration of DiI-C18 showed two populations of thrombocytes (DiI+ and DiI-). Again, only young thrombocytes showed DiI+ labeling. The mechanism of selective labeling of young thrombocytes by is unknown. Furthermore, there is no zebrafish line where young and mature thrombocytes are differentially labeled with fluorescence proteins. Therefore, in this study, we identified and confirmed that the RFP labeled cells of Glofish were young thrombocytes. In addition, we found that myosin light chain 2 (MLC2) promoter is expressed in young thrombocytes. We also generated a transgenic zebrafish line, GloFli fish, where the young and mature thrombocytes are labeled with red and green fluorescence proteins respectively. Furthermore, this study showed a two-fold increase in glycerol-phospholipids (GP) in mature thrombocytes compared to young thrombocytes suggesting the lipid composition may be important for differential labeling. Therefore, we tested the liposomes prepared with different ratios of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) and observed that the lower amounts of PE favor the DiI-C18 labeling whereas higher concentrations of PC are less efficient. Also, in both PE and PC, increased concentrations of both resulted in decreased binding. These results are consistent with our observation that mature thrombocytes have higher concentrations GP and thus DiI-C18 may not bind to them efficiently compared to young thrombocytes.
Supply Chain Finance: Developing a Weighted Cash Conversion Cycle to Proxy Corporate Financial Performance
The objective of this three-essay dissertation are to develop a weighted cash conversion cycle (CCC_EVA) and empirically investigate its commensurability of corporate financial performance. Essay 1, titled "Supply Chain Finance: Developing a Weighted Cash Conversion Cycle to Proxy Operations Liquidity", presents the development and supporting empirical evidence of CCC_EVA measurability of operations liquidity. This essay shows the processes of scaling capital intensity and financing cost into time intervals captured by the traditional metric. Specifically, this essay investigates how accurately CCC_EVA indexes operations liquidity captured working capital, operational cash flow-to-modified working capital ratio, and quick ratio. The sample used in this essay consists of 4,333 firm-year observations of publicly traded industry classified firms listed on the U.S. exchange markets. The results of the empirical testing have statistically supported the essay hypotheses, that is CCC_EVA is a more accurate proxy of operations liquidity in comparison to the traditional metric (CCC_D). Essay 2, titled "Supply Chain Finance: Weighted Cash Conversion Cycle and Corporate Finance", expands the first essay findings by accounting for well-known financial measurements. Specifically, this essay examines the relations between CCC_EVA and operations liquidity and leverage, Market value, operating profitably and growth, and long-term asset management efficiency. This essay paper has used a sample of 24,127 firm-year observations of publicly traded firms listed on U.S. exchange markets from 1994 to 2016. The results support and extend the previous findings, that is CCC_EVA is a robust proxy of operations liquidity and can enhance its resiliency; maximize market value of corporate equity and debt; identify strategies to improve corporate profitability and credibility. Essay 3, titled "Supply Chain Finance: An Advanced Weighted Cash Conversion Cycle", advances the accuracy of CCC_EVA by differentiating between cash and credit forms of corporate sales and purchase transactions, and introducing operational cash flow into CCC_EVA. The advanced metric allows ...
Crisis and Catharsis: Linear Analysis and the Interpretation of Herbert Howells' "Requiem" and "Hymnus Paradisi"
Hymnus Paradisi (1938), a large-scale choral and orchestral work, is well-known as an elegiac masterpiece written by Herbert Howells in response to the sudden loss of his young son in 1935. The composition of this work, as noted by the composer himself and those close to him, successfully served as a means of working through his grief during the difficult years that followed Michael's death. In this dissertation, I provide linear analyses for Howells' Hymnus Paradisi as well as its predecessor, Howells' Requiem (1932), which was adapted and greatly expanded in the creation of Hymnus Paradisi. These analyses and accompanying explanations are intended to provide insight into the intricate contrapuntal style in which Howells writes, showing that an often complex musical surface is underpinned by traditional linear and harmonic patterns on the deeper structural levels. In addition to examining the middleground and background structural levels within each movement, I also demonstrate how Howells creates large-scale musical continuity and shapes the overall composition through the use of large-scale linear connections, shown through the meta-Ursatz (an Ursatz which extends across multiple movements creating multi-movement unity). Finally, in my interpretation of these analyses, I discuss specific motives in Hymnus Paradisi which, I hypothesize, musically represent the crisis of Michael's death. These motives are initially introduced in the "Preludio," composed out on multiple structural levels as Hymnus Paradisi unfolds, and, finally, I argue, are transformed as a representation of the process of healing, and ultimately, catharsis.
Art Unfettered: Bergson and a Fluid Conception of Art
This dissertation applies philosopher Henri Bergson's methodology and his ideas of duration and creativity to the definitional problem of art, particularly as formulated within analytic aesthetics. In mid-20th century, analytic aesthetics rejected essentialist definitions of art, but within a decade, two predominant definitions of art emerged as answers to the anti-essentialism of the decade prior: functionalism and proceduralism. These two definitions define art, respectively, in terms of the purpose that art serves and in terms of the conventions in place that confer the status of art onto artifacts. Despite other important definitions (including historical and intentionalist definitions), much of the literature in the analytic field of aesthetics center on the functional/procedural dichotomy, and this dichotomy is an exclusive one insofar as the two definitions appear incompatible with each other when it comes to art. I use Bergson's methodology to demonstrate that the tension between functionalism and proceduralism is an artificial one. In turn, abandoning the strict dichotomy between these two definitions of art opens the way for a more fluid conception of art. Using Bergson's application of duration and creativity to problems of laughter and morality, I draw parallels to what a Bergsonian characterization would entail.
Hydrophobicity of Magnetite Coating on Low Carbon Steel
Superhydrophobic coatings (SHC) with excellent self-cleaning and corrosion resistance property is developed on magnetite coated AISI SAE 1020 steel by using a simple immersion method. Roughness measurement, scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), contact angle measurement (CAM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), potentiodynamic polarization test, electrochemical impedance spectroscopy (EIS), and qualitative characterization of self-cleaning behavior, antifouling property and durability of the coatings are assessed. A water contact angle as high as 152o on the coated surface with excellent self-cleaning and resistivity to corrosion and good longevity in atmospheric air is obtained. Self-cleaning test results prove that these surfaces can find applications in large scale production of engineering materials. Potentiodynamic polarization tests and EIS tests confirm that the superhydrophobic low carbon steel surfaces have better resistance to corrosion compared to bare steel and magnetite coated steel in 3.5% NaCl solution. But the longevity of the coated steel surfaces in 3.5% salt solution is limited, which is revealed by the immersion durability test. However, hydrophobic coatings (HC) have better stability in normal tap water, and it can stay unharmed up to 15 days. Finally, hydrophobic coatings on low carbon steel surface retains hydrophobic in open atmosphere for more than two months. Results of this investigation show surface roughness is a critical factor in manufacturing hydrophobic steel surfaces. Higher contact angles are obtained for rougher and more uniform surfaces. A linear mathematical relationship (y =6x+104; R2 = 0.93) is obtained between contact angle (y) and surface roughness (x).
Value: An Examination of Its Key Dimensions and Elements through the Lens of Service-Dominant Logic and Beyond
his dissertation advocates that value and its creation are often misunderstood concepts since both lack robust comprehensive conceptual foundations from which to advance rigorous theoretical development and analysis. Furthermore, this dissertation characterized value as the subjective assessment of the total worth of benefits received for the price paid or costs, i.e. money, time, energy, etc. The purpose of this dissertation was to conduct a holistic examination of value through the lens of service-dominant logic (S-D) and several historical economic periods of thought. I conducted a comprehensive S-D literature review in conjunction with a conceptual Boardman Soft Systems Methodology to develop a systemigram that captured the most critical S-D concepts and interrelationships to clarify its purpose and future research opportunities. During this process, value was recategorized and simplified into five primary dimensions, i.e. nature, perspectives, measures, storage, and creation. I employed Maslow's hierarchy of needs theory to illustrate that value at the lowest level of abstraction is the efficient satisfaction of human needs. I also investigated value creation and introduced a comprehensive value creation conceptual framework. Value creation is seen as a continuum of activity of key processes, i.e. value co-production, value in exchange, and value co-creation, and key procedural elements, i.e. actors, resource integration, ecosystems, services exchange, institutions and institutional arrangements as essentials to value creation. In addition, this dissertation also presented a Leyden value concept to the S-D lexicon. This concept complements use-value to capture associate upstream co-production activities and efforts as stored potential value. This dissertation then employed this conceptual framework to perform two survey based empirical studies. The first tested Lusch et al. (2007) value-co-production framework and incorporated other constructs such as transaction cost, satisfaction, and future purchase intent into a single testable model. This study leveraged covariance based structural equation modeling with 477 respondents to simultaneously ...
Use of Bio-Product/Phase Change Material Composites in the Building Envelope for Building Thermal Control and Energy Savings
This research investigates the bio-products/phase change material (PCM) composites for the building envelope application. Bio-products, such as wood and herb, are porous medium, which can be applied in the building envelope for thermal insulation purpose. PCM is infiltrated into the bio-product (porous medium) to form a composite material. The PCM can absorb/release large amount of latent heat of fusion from/to the building environment during the melting/solidification process. Hence, the PCM-based composite material in the building envelope can efficiently adjust the building interior temperature by utilizing the phase change process, which improves the thermal insulation, and therefore, reduces the load on the HVAC system. Paraffin wax was considered as the PCM in the current studies. The building energy savings were investigated by comparing the composite building envelope material with the conventional material in a unique Zero-Energy (ZØE) Research Lab building at University of North Texas (UNT) through building energy simulation programs (i.e., eQUEST and EnergyPlus). The exact climatic conditions of the local area (Denton, Texas) were used as the input values in the simulations. It was found that the EnergyPlus building simulation program was more suitable for the PCM based building envelope using the latent heat property. Therefore, based on the EnergyPlus simulations, when the conventional structure insulated panel (SIP) in the roof and wall structures were replaced by the herb panel or herb/PCM composite, it was found that around 16.0% of energy savings in heating load and 11.0% in cooling load were obtained by using PCM in the bio-product porous medium.