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962 Matching Results
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Research on solving differential equations of forest fire monitor based on Runge-Kutta
Article describes study analyzing the characteristics of the movement of the gel extinguishing agent micelles by considering the resistance of movement.
Date:
August 20, 2020
Creator:
Guan, Xuemei & Wei, Yanxiu
Object Type:
Article
System:
The UNT Digital Library
Collaborating on Scholarship
The presentation examines the considerations and processes for collaborating on scholarship from the perspective of academic librarians. It includes how to choose team members, facilitate collaboration and organize all the elements of a project to create a successful publication or presentation. Also included are administrative responsibilities, thoughts on handling problems, and examples of delineating responsibilities. It was presented at the Cross Timbers Library Collaborative Conference held on August 7, 2020.
Date:
August 7, 2020
Creator:
Sassen, Catherine & Brannon, Sian
Object Type:
Presentation
System:
The UNT Digital Library
To Meet or Not to Meet: How We Really Feel
Presentation highlights meeting science in the context of libraries with support from a survey conducted by the authors. Topics include the predictors of success for productive meetings, what academic librarian perceptions of effective meeting leadership are, and learn about the “best practices” for meeting participation and leadership. It was presented at the Cross Timbers Library Collaborative Conference held on August 7, 2020.
Date:
August 7, 2020
Creator:
Leuzinger, Julie & Brannon, Sian
Object Type:
Presentation
System:
The UNT Digital Library
Meeting Science for Academic Librarians
This dataset contains results from survey of academic librarians about experiences in meetings and preferences for meeting components.
Date:
August 10, 2020
Creator:
Brannon, Sian & Leuzinger, Julie
Object Type:
Dataset
System:
The UNT Digital Library
[Alayna Eiting's dog]
Photograph of Alayna Eiting's dog, Buster, outside on pavement.
Date:
August 6, 2020
Creator:
Eiting, Alayna
Object Type:
Photograph
System:
The UNT Digital Library
[Mural of George Floyd in San Antonio]
Photograph of a mural depicting George Floyd with a halo over his head. Written adjacent to the mural is "Rest in Peace George Floyd," and the artist tagged the mural with the social media handle @MXMO.
Date:
August 2, 2020
Creator:
Fotinos, Diana
Object Type:
Photograph
System:
The UNT Digital Library
[Program for outdoor concert series]
Photograph of a program for an outdoor concert series featuring musical performances by Alex Waterman and others.
Date:
August 6, 2020
Creator:
Waterman, Alexander
Object Type:
Photograph
System:
The UNT Digital Library
[Children wearing face masks and shoe coverings in an art gallery]
Photograph of three children wearing cloth face masks and shoe coverings in an art gallery.
Date:
August 2, 2020
Creator:
Waterman, Alexander
Object Type:
Photograph
System:
The UNT Digital Library
[Mural of Vanessa Guillen in San Antonio]
Photograph of a mural depicting Vanessa Guillen, a U.S. army soldier who was murdered in 2020 while stationed at Fort Hood. Written adjacent to the mural is "# Justice for Vanessa" and the artist tagged the mural with the social media handle @MXMO
Date:
August 2, 2020
Creator:
Fotinos, Diana
Object Type:
Photograph
System:
The UNT Digital Library
[Alayna Eiting's laptop]
Photograph of Alayna Eiting's laptop computer open to the UNT Library online catalog while outside. A lawn, plants, and a street are visible.
Date:
August 6, 2020
Creator:
Eiting, Alayna
Object Type:
Photograph
System:
The UNT Digital Library
Academic Librarians Creating Value through Commercialization Partnerships
This paper focuses on how the University of North Texas (UNT) Libraries was able to develop a successful partnership with the UNT Office of Innovation and Commercialization (OIC) and move outside the Libraries’ normal sphere of influence to help create a patent internship program for students. The paper is published in the Texas Library Journal Special Edition for Summer 2020, and it was a contributed paper at the Texas Library Association 2020 Virtual Summer of Learning conference.
Date:
August 12, 2020
Creator:
Dooley, Yvonne
Object Type:
Article
System:
The UNT Digital Library
Sounds Themselves: Intersections of Serialism and Musique Concrète in Karlheinz Stockhausen's "Elektronische Studie I"
In the summer of 1953, Karlheinz Stockhausen began composing his first piece of elektronische Musik at the Westdeutscher Rundfunk Studio for Electronic Music in Cologne. Up to that point, Stockhausen's only experience with electroacoustic music was his time spent at the Radiodiffusion-Télévision Française the previous year, where he assisted Pierre Schaeffer and composed a piece of musique concrète. An early case study in the marriage of serial aesthetics and electroacoustic techniques, Studie I is a rigorously organized work that reflects Stockhausen's compositional philosophy of a unified structural principle in which all musical materials and parametric values are generated by and arranged according to a single governing series. In spite of this meticulously wrought serial structure, Studie I displays features that are the consequences of the realities of electronic sound production either imposing on the sonic result, or altering the compositional plan entirely. I use a three-part approach to my analysis of Studie I by examining Stockhausen's serial system, the electroacoustic studio techniques in use in 1953, and the original recorded realization through spectrographic analysis. Using this methodology, I expose the blurring of the supposed divide between elektronische Musik and musique concrète by exploring the features that lie between the serial …
Date:
August 2020
Creator:
Huff, David, 1976-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Variability in the Natural World: An Analysis of Variability in Preschool Play
Children acquire many skills through play. These range from fine and gross motor skills, social skills, problem-solving, to even creativity. Creativity or creative engagement is frequently a component in early preschool curricula. A pivotal repertoire to engage in behaviors deemed creative, such as art, storytelling, problem-solving, and the like, is the ability to vary one's responses regardless of the specific repertoire. Researchers have developed methods to produce response variability. However, notwithstanding the significant contributions from the literature for prompting response variability, it remains unclear how much variation in responding is socially appropriate. To fill this research gap, the purpose of this study is to characterize and understand the different ways preschool children commonly interact with the activities and materials present in a preschool classroom. In our study, we assessed children's repeat item interactions, novel item interactions, and time allocation across seven concurrently available activity centers. A multifarious pattern for item interactions emerged across children. Some children had restricted levels of novel item and center interactions, while other children had more varied novel item and center interactions. However, the variance in interactions was predominantly controlled by the center type. This study bolsters our understanding of variability and creativity within a school …
Date:
August 2020
Creator:
Armshaw, Jared T
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Impact of Anti-S2 Peptides on a Variety of Muscle Myosin S2 Isoforms and Hypertrophic Cardiomyopathy Mutants Revealed by Fluorescence Resonance Energy Transfer and Gravitational Force Spectroscopy
Myosin subfragment-2 (S2) is an intrinsically unstable coiled coil. This dissertation tests if the mechanical stability of myosin S2 would influence the availability of myosin S1 heads to actin thin filaments. The elevated instability in myosin S2 coiled coil could be one of the causes for hypercontractility in Familial Hypertrophic Cardiomyopathy (FHC). As hypothesized FHC mutations, namely E924K and E930del, in myosin S2 displayed an unstable myosin S2 coiled coil compared to wild type as measured by Fluorescence Resonant Energy Transfer (FRET) and gravitational force spectroscopy (GFS). To remedy this, anti-S2 peptides; the stabilizer and the destabilizer peptides by namesake were designed in our lab to increase and decrease the stability of myosin S2 coiled coil to influence the actomyosin interaction. Firstly, the effectiveness of anti-S2 peptides were tested on muscle myosin S2 peptides across MYH11 (smooth), MYH7 (cardiac), and MYH2 (skeletal) with GFS and FRET. The results demonstrated that the mechanical stability was increased by the stabilizer and decreased by the destabilizer across the cardiac and skeletal myosin S2 isoform but not for the smooth muscle isoform. The destabilizer peptide had dissociation binding constants of 9.97 × 10-1 μM to MYH7 isoform, 1.00 μM to MYH2 isoform, and no …
Date:
August 2020
Creator:
Aboonasrshiraz, Negar
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Applicability of the PICTS-SV in Offenders with Severe Substance Use Histories
Two important developments are addressed by this dissertation. First, the Psychological Inventory of Criminal Thinking Styles-Simplified Version (PICTS-SV) was examined in relation to the original PICTS. Second, the vulnerability of the PICTS-SV to intentional risk minimization (RM) was tested. Two separate studies recruited a total of 150 offenders from a court-mandated residential substance use treatment facility. As expected, Study I established the PICTS-SV's good concurrent validity with the PICTS, especially at the broad composite scale level. For Study II, criminal thinking failed to show the anticipated convergence with HCR-20 risk classifications or forensic correlates. Potential explanations, including a restricted range of risk levels in this sample, are discussed. As a particular strength, the findings highlight that the PICTS-SV, in contrast to many risk measures, displays robust resistance to RM distortion, although revisions to its Df-r validity scale are warranted. These results overall demonstrate strong evidence of the PICTS-SV's utility for assessing a dynamic criminogenic need to inform effective interventions and accurate risk determinations.
Date:
August 2020
Creator:
Williams, Margot Maryanne
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Contributions to Geometry and Graph Theory
In geometry we will consider n-dimensional generalizations of the Power of a Point Theorem and of Pascal's Hexagon Theorem. In generalizing the Power of a Point Theorem, we will consider collections of cones determined by the intersections of an (n-1)-sphere and a pair of hyperplanes. We will then use these constructions to produce an n-dimensional generalization of Pascal's Hexagon Theorem, a classical plane geometry result which states that "Given a hexagon inscribed in a conic section, the three pairs of continuations of opposite sides meet on a straight line." Our generalization of this theorem will consider a pair of n-simplices intersecting an (n-1)-sphere, and will conclude with the intersections of corresponding faces lying in a hyperplane. In graph theory we will explore the interaction between zero forcing and cut-sets. The color change rule which lies at the center of zero forcing says "Suppose that each of the vertices of a graph are colored either blue or white. If u is a blue vertex and v is its only white neighbor, then u can force v to change to blue." The concept of zero forcing was introduced by the AIM Minimum Rank - Special Graphs Work Group in 2007 as a …
Date:
August 2020
Creator:
Schuerger, Houston S
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
That Isolation Creeps In: Exploring the Intersection of Public Transit and Mental Health in Dallas County, Texas
The primary goal of the research project was to organize a community needs assessment, which culminated in a report attached in the appendix. Data from sixteen interviews with community leaders involved in mental health promotion throughout Dallas County, Texas was used as the foundation of the professional report. This data revealed several key barriers faced by those with mental illness in their ability to access mental health services in Dallas County. The information gathered prompted further exploration into the intersection between public transit and mental health. Transit became the focus of this work when it came up as simultaneously a barrier to care and mode of prevention in the majority of the interviews. Interestingly, Dallas County has public plans to address transit related disparities; however, their intervention pulls from strategies determined to be ineffectual among the poor and disenfranchised. In this work we explore community needs and the civic culture of Dallas with a specific focus on transportation.
Date:
August 2020
Creator:
Sanderson, Brittney
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Examining Human Information Behavior on Social Media: Introducing the Concept of Social Noise
Social media information behavior is increasingly critical, impacting not only individuals and groups but the beliefs, values, and direction of society and culture. The purpose of this study was to investigate how persistent observation by members of the online network influences social media users' information behavior, resulting in the phenomenon of social noise. Data analytics, including LDA, LSA, and clustering methodologies, were performed but could not provide information about the users' motivations. Using an ethnographic approach, participant observations and interviews were conducted with Facebook users as they interacted with informational posts, and the data collected was coded using a recursive method. Four key constructs of social noise were identified, and sub-codes were assigned within each construct as patterns emerged, providing insight into the different facets of social noise. Additionally, in most instances more than one of the four constructs were present, layering their influence on the information behavior. Based on these findings, social media users are not always interacting with information based on true personal beliefs or desires; instead, concerns surrounding their personal image, relationships with others, core beliefs, and online conflict are influencing their observable information behavior. The results of this exploratory study provide a basis to further develop …
Date:
August 2020
Creator:
Zimmerman, Tara D
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Exploration of RDA-Based MARC21 Subject Metadata in Worldcat Database and Its Readiness to Support Linked Data Functionality
Subject of information entity is one of the fundamental concepts in the field of information science. Subject of any document represents its intellectual potential -- 'aboutness' of the document. Traditionally, subject (along with title and author) is the one of three major ways to access information, so subject metadata plays a central role in this process and the role is constantly growing. Previous research concluded that the larger bibliographic database is, the richer subject vocabularies and classification schemes are needed to support information discovery. Further, a high proportion of information objects are unretrievable without subject headings in metadata records. This exploratory study provides the analysis of the subject metadata in MARC 21 bibliographic records created in 2020; and develops understanding of the level and patterns of 'aboutness' representation in the MARC 21 bibliographic records. Study also examines how these records apply the recent RDA and MARC21 guidelines and features intended to support functionality in a Linked Data environment. Methods of Social Network Analysis were applied along with content analysis, to answer research questions of this study. Suggestions for future research, implications for education, and practical recommendations for library metadata creation and management are discussed.
Date:
August 2020
Creator:
Zavalin, Vyacheslav I.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Così fan tutte? A Study of Character Development through Key Characteristics in the Prima Donna and Soubrette Roles from Four of W.A. Mozart's Late Italian Operas
This dissertation investigates how W. A. Mozart applies the concept of key characteristics—the affective properties of each tonality—as discussed by three of his contemporaries, Johann Mattheson, C.F.D. Schubart and G.J. Vogler, to four soubrette and four prima donna characters from four of his late Italian operas: La Contessa and Susanna in Le nozze di Figaro; Donna Anna and Zerlina in Don Giovanni; Fiordiligi and Despina in Così fan tutte; Vitellia and Servilia in La clemenza di Tito. The analytical method of this dissertation provides a hermeneutical tool to search for meanings in Mozart's music. The application compares the libretto text and its corresponding tonal center with the description of key characteristics on a micro level, to reveal significant dramatic and practical implications from Mozart's key usage in his operas.
Date:
August 2020
Creator:
Tsai, Meng-Jung
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Crisis, New Imperialisms, and Accumulation by Dispossession: The Case of the Pakistan Railways
My research examines the three interrelated concepts of crisis; new imperialisms, spatial-temporal fix and accumulation by dispossession (ABD) stemming from the work of David Harvey as a way to understand the contested history of the Pakistan Railways. For the first thirty odd years after Pakistan's inception in 1947, the railways, a state-owned institution, was the primary mode of transport for the public, cargo, and workers. Alongside basic infrastructure, the railways had a vast network of hospitals, schools, workers' colonies and an array of physical infrastructure connected to production, operations and other aspects of the economy. The systematic ransack and decline of the Pakistan Railways reached its peak in 2010. Despite several attempts throughout the 1990s by successive democratic and military-led governments backed by the IMF/World Bank in 2015, it was announced that Pakistan railways would be revived under the banner of the 46 billion dollar China Pakistan Economic Corridor (CPEC) as part of the changing geopolitical context of growing regional connectivity and new Chinese imperialism. By examining the processes that underlie ABD, such as spatial-temporal fix, the following research shows that these processes not only reflect a shift of resources away from the public domain, but in Pakistan also entailed …
Date:
August 2020
Creator:
Khan, Sher Ali
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Multifactorial Determinants of Change in Mental Disorder and Happiness among Older Americans
Mental health is an intrinsic capability that constitute an essential component of healthy aging. Mental health is constituted by positive constructs such as happiness and negative constructs (mental disorders) such as depression. As people grow older, they become more prone to developing mental disorders which are linked to poorer quality of life, increased disability, increased utilization and cost of health services, and higher rates of suicide. This dissertation involved three studies that focused on factors that predict change in mental disorders and happiness of older Americans over a period of five years. Two waves of publicly available national representative data from the National Social Life Health and Aging Project (NSHAP) collected in 2010 and 2015 were used. A total of 2210 older adults within the ages 62-90 years were used in the analyses. Mental health measures were CES-Depression scale, HADS anxiety scale, and self-rated happiness. Essay 1 aimed to identify the important aspects of older adults' interaction with their neighborhood that predict the presence of mental disorder and happiness. Essay 2 evaluated the psychosocial factors that predict change in mental disorder and happiness of older adults, whereas essay 3 investigated the multifactorial determinants of change in mental disorder and happiness …
Date:
August 2020
Creator:
Adaralegbe, Adeleye Ayinde
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Radial and Axial Designs for Magnetic Absorbent Collector in Water
The use of collection systems for magnetic sorbents such as Magnetic Activated Carbon are discussed in order to gauge their efficacy in marine environments. Two collectors were built and tested, one which utilized a radial orientation of magnets and another with axially placed magnets. The two systems underwent a series of test with differing linear velocities and angular velocities. From the results, the axial system outperformed its radial counterpart, being most effective with a relatively high concentration of discs placed in series. The medium concentration, however, proved increasingly effective with higher velocities, meaning an optimization concentration exists for this design. The radial system was tested with high and low concentrations of small and large magnets, respectively. The larger magnets, although providing less concentration points in the alternating array, proved more effective for the collection of MAC. From these tests several new innovations were suggested, including belt tensioners, add on mechanisms, and a hybridized design in order to fully optimize the collection of MAC.
Date:
August 2020
Creator:
Renzetti, Andrew John
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Laying Second Eyes: A Qualitative Assessment of Pediatric Tele-Specialty Programs
This study aimed to create a holistic understanding of the physician experience in relation to telemedicine. This study examined a Tele-NICU and a Tele-ER program at a large metropolitan pediatric specialty hospital with a Level IV NICU that provides telemedicine consults to 16 remote sites across Texas. Twenty-four semi-structured interviews were conducted with physicians and nurses at remote hospitals, physicians who provide consultations from the pediatric specialty hospital, and managers of the tele-specialty programs. These interviews were coded using the consolidated framework for implementation science to contextualize program strengths and weaknesses and reviewed to make recommendations for future program development. Remote site participants reported that the programs are useful when they are in need a second opinion and providing reassurance to patient's families. Barriers to program use include issues with the tele-carts, insurance acceptance, and hesitation to request a consult. Study findings demonstrate the need to treat each tele-specialty programs as independent to suit the differing needs of both remote sites and the consulting physicians. This study demonstrates the importance of understanding physician's perspectives, culture, and the role of hospital settings in telemedicine program acceptance and refutes telemedicine as a monolithic solution to limited healthcare access.
Date:
August 2020
Creator:
Deahl, Claire C
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library