Digital Commons Network^™

“As The Occasion Demands”: Constraint-Based Practice In Rhetoric And Composition, Erica Kerstin Fischer

Theses and Dissertations

In their 2010 Composition Studies article, Laurie Gries and Collin Brooke observe, “constrained writing has been underappreciated” in the composition classroom (21). Taking seriously the potential value of constraints in pedagogical practice, this project executes a cross-disciplinary examination (drawing from design theory, experimental poetry, literary theory, composition, and rhetorical theory) of the various occurrences of, and approaches to, constraints and their influences on the ways we think and write. This investigation reveals that constraints create the conditions under which students can become productively defamiliarized to their thinking and writing habits, encouraging them to encounter alternatives otherwise left unnoticed.

I suggest …

Understanding Early Amyloid-Ss Aggregation To Engineer Polyacid-Functionalized Nanoparticles As An Inhibitor Design Platform, Nicholas Vander Munnik

Theses and Dissertations

Alzheimer’s disease (AD) is characterized by the presence of amyloid-ß (Aß) protein aggregates in the brains of those afflicted. This protein aggregates via a complex pathway to progress from monomers to soluble oligomers and ultimately insoluble fibrils. Due to the dynamic nature of aggregation, it has proven exceedingly difficult to determine the precise interactions that lead to the formation of transient oligomers. A statistical thermodynamic model has been developed to elucidate these interactions. Aß was simulated using fully-atomistic replica exchange molecular dynamics. We use an ensemble of 5 × 105 configurations taken from these simulations as input for a self-consistent …

Scientific Practices For Student-Centered Inquiry: The Impact Of A Focus On Student Proficiency In Data Analysis And Scientific Argumentation On Inquirybased Practices In A First-Grade Classroom, Whitnee Grant

Theses and Dissertations

Previous to this study, teaching and learning practices in the first-grade classroom of study were primarily teacher and content driven and did not reflect the student-driven inquiry process. The identified problem of practice for this action research study was the first-grade students in the teacher-researcher classroom did not demonstrate inquiry or scientific literacy through content-centered teaching practices. The research plan presented addressed the use of scientific practices as they related to inquiry-based teaching and learning. An action research methodology was used to explore the instructional tools that increased student proficiency in two specific scientific practices: analyzing and interpreting data and …

The Representations Of Gender And Sexuality In Contemporary Arab Women’S Literature: Elements Of Subversion And Resignification., Rima Sadek

Theses and Dissertations

Arab women’s literature continue to receive considerable critical attention by scholars in East and West. However, through my focus on three novels in this dissertation, The Cinnamon’s Aroma (2008) by Samar Yazbek, Brooklyn Heights (2011) by Miral al-Tahawy and It’s Called Passion (2009) by Alawiya Sobh I hope to contribute a more holistic understanding of these works by highlighting features not fully explored in previous scholarship. I concentrate on the creative means of struggle and resistance to the entrenched structures of oppression locating sights of potential hope and emancipation. I point out the ways in which these texts subvert and …

Multi-Scale Flow Mapping And Spatiotemporal Analysis Of Origin-Destination Mobility Data, Xi Zhu

Theses and Dissertations

Data on spatial mobility have become increasingly available with the wide use of location-aware technologies such as GPS and smart phones. The analysis of movements is involved in a wide range of domains such as demography, migration, public health, urban study, transportation and biology.

A movement data set consists of a set of moving objects, each having a sequence of sampled locations as the object moves across space. The locations (points) in different trajectories are usually sampled independently and trajectory data can become very big such as billions of geotagged tweets, mobile phone records, floating vehicles, millions of migrants, etc. …

Practices, Beliefs, And Perceptions Of Effective Science Teachers In Elementary Schools Serving Low Socioeconomic Communities, Edwin Wheeler Emmer

Theses and Dissertations

Students who come from low socioeconomic status (SES) backgrounds are more likely to manifest a science achievement gap when compared to their high SES peers as a result of the myriad of factors that have the potential to influence student performance, including limited access to resources, fewer life experiences, health care concerns, fewer extracurricular opportunities, etc. (Crook & Evans, 2014; Duke, 2000; Ladd, 2012; Sirin, 2005). This achievement gap can be exacerbated in the elementary setting where many teachers do not feel comfortable teaching science as a result of a lack of science content knowledge and limited experience teaching inquiry-based …

Evangelicals, Perceived Marginalization And Expressive Mobilization, Christin E. Mcmasters

Theses and Dissertations

Expressive forms of collective and individual mobilization of the evangelical population in the United States have been understudied in both social movement theory and religion and politics literature. While these forms of mobilization are not the only form of mobilization, they are important to understanding what specific issues evangelicals are feeling aggrieved about. Current research such as Wong (2018a; 2018b) and Sides, Tesler, and Vavreck (2018) have found that there is a growing sense of racial anxiety among the ranks of white evangelicals. Hence, it is likely that evangelicals, at least white evangelicals, are feeling a sense of marginalization.

I …

Development Of Bimetallic Catalysts For Dry Reforming Of Methane And Hydrogenation Of Succinic Acid, Jayson Michael Keels

Theses and Dissertations

Advances in natural gas recovery have greatly impacted the global economy; the abundant supply of gas has revealed new opportunities and challenges in a wide range of markets within the fuels and chemicals industries. One such opportunity exists with the overabundance of gas from remote wells that is flared or emitted because of the high costs associated with transportation of a chemical with such a high molar volume. A possible solution is an on-site process to convert gas to higher value chemicals that are liquid at standard conditions, and can more easily be transported. As a first step, CO2 from …

Construction Of Supramolecular And Coordination Compounds From Pyridyl Bis-Urea Macrocycles, Bozumeh Som

Theses and Dissertations

The self-assembly of macrocyclic molecules in solution and in the solid state modulates and in many cases enhances their properties for applications in sensing, catalysis and optoelectronics. The self-assembled structures are typically organized by non-covalent interactions such as hydrogen bonding, π-π stacking and dipole-dipole interactions. Our group has focused on the design and synthesis of bis-urea macrocycles that can self-assemble into solid cylinders or tubular structures affording crystalline materials. These macrocycles consist of two urea groups and two rigid C-shaped spacers. Easy functionalization of this system enables access to bis-urea macrocycle structures that could serve as molecular reactors, coordinating ligands …

Cortical Damage And Disconnection Contribute To Post-Stroke Sensorimotor Impairment, Shafagh Yazdani

Theses and Dissertations

BACKGROUND. Stroke is a cerebrovascular event that causes permanent damage to brain regions and decreases in connectivity (disconnection) between brain regions. Most stroke survivors have permanent difficulties performing functional motor tasks, thus research into how damage and disconnection produce difficulties performing motor tasks can help guide post-stroke rehabilitation. Previous studies have examined the extent to which cortical damage produces motor impairments, but the extent to which disconnection produces motor impairments remains unclear. Furthermore, studies have focused on how motor impairments contribute to difficulties performing motor tasks, whereas the role of visuospatial impairments has received little attention. Neuroimaging techniques for quantifying …

Anthropogenic Influences On Sedimentation In The Chicken Creek Watershed Of South Carolina, Tyler L. Dearman

Theses and Dissertations

Anthropogeomorphic changes in response to destructive agricultural practices followed the arrival of European settlers into the Americas. The southeastern Piedmont physiographic region of the USA was severely affected by erosion and sedimentation following settlement in the 1700s and farming up through the 1930s. Deep floodplain aggradation formed uninterrupted alluvial deposits that extended many km. This research examines anthropogenic impacts of land-use change on valley bottom sedimentation in the Chicken Creek Watershed of South Carolina. Abrupt contacts between pre-settlement floodplain soils and a thick overburden of legacy sediment are common throughout the two-km study reach and provide clear evidence of extensive …

Development Of A Supplier’S Delivery Time And Delivered Quality Performance Index And Assessment Of Alternative Decisions Regarding Underperforming Suppliers For The Aerospace Industry, Clint Saidy

Theses and Dissertations

This study investigates current practices of supplier’s delivery assessment so that a comprehensive index and a cost function model could be properly developed. Following a thorough literature review, a framework was created based on a penalty cost function that integrates both suppliers’ ability to deliver on time, as well as suppliers’ capability to deliver good quality. Afterward, suppliers could then be ranked and placed either in good standing, or transversely on probation. Underperforming suppliers face three potential outcomes based on current literature: (1) switching supplier, (2) increase collaboration, (3) maintaining the status quo. The decision vis-à-vis failing suppliers is based …

On The Security And Quality Of Wireless Communications In Outdoor Mobile Environment, Sharaf J. Malebary

Theses and Dissertations

The rapid advancement in wireless technology along with their low cost and ease of deployment have been attracting researchers academically and commercially. Researchers from private and public sectors are investing into enhancing the reliability, robustness, and security of radio frequency (RF) communications to accommodate the demand and enhance lifestyle. RF base communications -by nature- are slower and more exposed to attacks than a wired base (LAN). Deploying such networks in various cutting-edge mobile platforms (e.g. VANET, IoT, Autonomous robots) adds new challenges that impact the quality directly. Moreover, adopting such networks in public outdoor areas make them vulnerable to various …

Reevaluating The Parenting Wellbeing Gap: Evidence From The Wellbeing Module Of The American Time Use Survey, Daniela Veronica Negraia

Theses and Dissertations

Both scholars and the public have been intrigued by the question of whether parents experience higher levels of emotional wellbeing than adults who are not raising children. Yet despite decades of research on the topic, the answer to this question remains unclear. Using a novel source of nationally representative data, the Wellbeing Module of the American Time Use Survey (2010, 2012, 2013), this dissertation aims to unpack and extend prior understanding of the parenting wellbeing gap by pursing two studies. The first investigates whether parenthood may have both positive and negative links to adults’ emotional wellbeing; whether the gap varies …

Computations Of The Dynamic Fracture Of Plane Structures By The Extended Finite Element Method, Iman Asareh

Theses and Dissertations

Finite element methods for the simulation of dynamic fracture in plane structures are presented. The method is a modified extended finite element method (XFEM) for dynamic fracture simulations with a new methodology to construct the XFEM basis functions for discontinuities. In contrast to conventional XFEM in which the extended interpolation is defined to only capture the discontinuities, the proposed method describes the enrichment functions so that they reproduce both the discontinuities and the polynomial bases of sufficiently high order which are critical for finite element convergence. Such enrichment functions, by adopting the Duffy’s transformation, can be simply defined in terms …

Selective Deposition Of Platinum By Strong Electrostatic Adsorption Onto Cobalt- And Iron-Based Catalysts For Fischer-Tropsch Synthesis, Fahad A. Almalki

Theses and Dissertations

Cobalt and iron based catalysts are commercially predominant for Fischer-Tropsch synthesis, Co-based catalysts for their stability, activity, and inactivity for the water gas shift reaction and Fe-based catalysts for their cheap cost, high light-olefins and alcohols selectivity, and tolerance to H2/CO ratio. These catalysts are structure sensitive with lower activity at nanoparticle sizes smaller than 6-8 nm. Co-based catalysts exhibit high activity, low CH4 selectivity, and high C5+ selectivity, while Fe-based catalysts are more selective to low-molecular-weight hydrocarbons such as olefins and alcohols. The reducibility of cobalt and iron is another important factor which may be key for improving their …

Three Essays On Corporate Finance: A Multilevel Inspection Of Target Capital Structure & Convertible Debt Issuance And Market Valuations Of Innovative Ability, Ashleigh Eldemire-Poindexter

Theses and Dissertations

This dissertation presents empirical analysis of the capital structure, security issuance, value creation, and valuation concepts of corporate finance. Two analysis examine connections between firm capital structure and the use of convertible debt securities, which have mixed debt and equity attributes. The third analysis examines the valuation of implicit and explicit signals of firm quality.

Chapter 1, Convertible Debt & Target Leverage Adjustments, examines how does convertible debt affects advances toward target capital structure. Convertibles may improve leverage adjustments by providing capital that is less costly to issue and less expensive to service. However, convertibles can be risky liabilities with …

Dynamic Simulation Of A Solar Powered Hybrid Sulfur Process For Hydrogen Production, Satwick Boddu

Theses and Dissertations

The Hybrid Sulfur process is a thermo-electrochemical cycle used to produce hydrogen from water. The process requires a high temperature energy source for H2SO4 decomposition with temperature reaching 800°C. This step is followed by SO2 - depolarized water electrolysis. Using solar energy as the high temperature energy source allows for efficient environmentally friendly production of hydrogen. This method is an alternative to traditional photovoltaic electrolysis for hydrogen production. Making the process economically competitive is a major challenge. Operating the process with changes in the availability of solar energy also increases process complexity. The dependence of the process on solar energy …

Impacts Of Drainage Systems On Stormwater Hydrology: Rocky Branch Watershed, Columbia, South Carolina, Logan Ress

Theses and Dissertations

The effects of urbanization and associated land use changes, specifically increases in impervious surfaces, have long been the focal point of urban hydrologic research. However, studies and calculations that consider impervious surfaces alone do not encompass all factors that influence urban hydrologic response. Artificial structures such as storm sewer (SS) systems and road networks increase rates of stormwater conveyance, yet these artificial networks are rarely considered in computations of drainage densities and associated hydrologic alterations. This study examines several hydrologically relevant descriptors that can be used to better understand the impact of urbanization on small watersheds. Rainfall and stormflow data …

Family Oriented Values, Emerging Adulthood, And Tobacco Use Among Hispanic Emerging Adults, Melek Yildiz Spinel

Theses and Dissertations

Theory and research on emerging adulthood (ages 18 to 25) have increased in the past two decades. However, few studies have assessed how different cultural values and experiences influence the experiences of ethnic minority emerging adults. The first objective of the current study was to expand the field of emerging adulthood research by exploring how familism, the belief that family is central to a person’s life, related to their experience of emerging adulthood. Specifically, the study assessed how familism related to Arnett’s proposed experiences of emerging adulthood (identity exploration, self focused, other-focused, feeling in between, the age of instability/negativity, and …

Effect Of Material Orientation On The Impact Response Of Graded Cellular Materials, Abigail Wohlford

Theses and Dissertations

In this study, the effect of layer stacking on the energy absorption characteristics of density-graded cellular polymers subjected to high velocity impact is investigated experimentally. The focus in the present work is to characterize the constitutive response and deformation mechanisms of these Functionally Graded Foam Materials (FGFM) using full-field measurements. Uniform foam Quasi-static and dynamic testing of uniform foam specimens are completed for each nominal density used in the layered foam samples. The low strain-rate experiments are performed in order to determine the mechanical properties of foam specimens. The high-rate experiments for homogenous foam specimens were completed to further characterize …

Sleep, Shiftwork Adaptation, Autonomic Dysfunction, And Metabolic Syndrome, Torrance Torrance

Theses and Dissertations

Background: Sleep is considered a physiological necessity and its disruption is associated with a wide variety of adverse mental and physical health outcomes including increased incidence of obesity, cancer, hypertension, cardiovascular disease, type 2 diabetes mellitus, stroke, depression, post-traumatic stress disorder (PTSD), work-related and vehicle accidents, and aberration of the autonomic nervous system.

Methods: Three studies were conducted from three separate populations. The first study examined the latent trajectories of self-reported sleep quality in active duty Army soldiers over a 3-year period using data from the Global Assessment 2.0 survey and Repeated Measures Latent Class Analysis (RMCLA) procedures. Generalized Estimating …

Assessing Exposure To Occupants In An Indoor Space Due To Expirated Aerosols: Application Of Computational Fluid Dynamics, Firoza Binte Omar

Theses and Dissertations

Indoor environment is an important issue for the well-being of the society. In the United States more than 90% people spend their time indoor, indoor air pollution is more culpable than the pollution outside air. Two third of US businesses lose more than $100,000 per year due to workplace related illness. The trend of sharing the work space has an impact on total sick leaves in a company. Infectious particles released by a flu sufferer’s sneezing, coughing or even laughing can be a vital source. A thorough analysis on infectious particles’ transmission and air flow of the space can provide …

The Impact Of Literature Circles On The Reading Comprehension Of English Language Learners, Madeline Fletcher

Theses and Dissertations

This Dissertation in Practice was written in response to a Problem of Practice in the high school in which I work. Close to 40% of the students in my school are Hispanic, and more than two thirds of these are English language learners. Like so many ELLs around the country, these students struggle to learn English while also keeping up with their other classes, which are not taught in their native language. Almost half of the ELLs at my school end up dropping out before graduating.

To address this problem, I undertook an action research study with the goal of …

Education’S Role In A System Of Care For Children And Youth With Emotional/Behavioral Challenges: A Mixed Methods Evaluation, Lauryn Young

Theses and Dissertations

Students with more severe emotional/behavioral (EB) challenges have many problems in the school environment and subsequently have significant difficulty making adjustments later in adulthood. Coordinated care systems, such as local system of care (SOC) initiatives, were established in response to a call for reform in youth mental health services as research began highlighting the need for improved access and quality of mental and behavioral services for youth. However, even in communities where SOC initiatives are operating well, school involvement is usually marginal. Therefore, the current study aimed to evaluate education’s role in one SOC for children and youth with EB …

Creating An Online Social Movement In Socially Conservative Societies: A Case Study Of Manshoor Blog Using Frame Alignment Process, Noura Abdullah Al-Duaijani

Theses and Dissertations

In the last decade, the Arab region has witnessed many political and social changes. Parts of these changes were initiated by millennials seeking social change to elevate the quality of life in their country and themselves. In one particular country, Kuwait, youth have pursued social change by advocating a freer lifestyle and regime change in government and institutions. Manshoor, an Arab language blog launched in November 2016 by two Kuwaiti liberals, Jassim Qamis and Ali Al-Nessif, stimulates an open conversation on a wide range of issues, including controversial ideas in the region such as scrutinizing some practices and beliefs of …

Optical Investigation Of A Hybrid System Of Plasmonic Structures And Semiconductor Quantum Dots, Matthew B. Seaton

Theses and Dissertations

Next generation integrated nanophotonic devices must fabricate large numbers of nanoscaled light coupling structures onto a single wafer: emitters such as quantum dots, resonators such as nanocavities and plasmonic nanoparticles, photonic crystal and nano-plasmonic waveguides, among others. Before precision planning and engi- neering will be possible a thorough understanding of the interaction between these structures must be documented. We present in this work an investigation of the interaction between quantum dots and plasmonic structures in the weak coupling regime. We found that surface plasmon supporting silver structures placed about 100nm from InGaAs quantum dots enabled an all optical polarization dependent …

Beyond Preservation: Reconstructing Sites Of Slavery, Reconstruction, And Segregation, Charlotte Adams

Theses and Dissertations

The Secretary of the Interior’s Standards for the Treatment of Historic Properties define reconstruction as “the act or process of depicting, by means of new construction, the form, features, and detailing of a non-surviving site, landscape, building, structure, or object for the purpose of replicating its appearance at a specific period of time and in its historic location.”1 Reconstruction is a controversial treatment method among historic preservationists, so this thesis seeks to answer the question of why stewards of historic sites still choose to reconstruct nonextant buildings. It explores three case studies: (1) the slave buildings of Mulberry Row at …

Understanding The Adsorption And Nucleation Of Transition Metals On A Model Carbon Support, Grant S. Seuser

Theses and Dissertations

Heterogeneous catalysis plays a vital role in the commercial production of chemicals. However, much is still unknown about the fundamental surface chemistry involved in catalyst preparation and the surface chemistry of the catalysts themselves. In the first part of this work, a surface science approach was employed to develop a fundamental understanding of the surface chemistry of strong electrostatic adsorption (SEA) of metal precursors on a model carbon support, highly oriented pyrolytic graphite (HOPG). SEA is a wet impregnation method in which anionic/cationic metal precursors are adsorbed onto positively/negatively charged functional groups by adjusting the pH of the solution above …

Characterizing Health Behavior Information: Developing A Surveillance Text Mining Framework Using Twitter For Diet, Diabetes, Exercise, And Obesity, George Shaw Jr.

Theses and Dissertations

Previous studies have documented the relationship that exists among diabetes, diet, exercise, and obesity. Obesity increases people’s risk of developing heart disease and type 2 diabetes. Exercise and proper dieting are modifiable lifestyle behaviors that can help with reducing people’s overall weight and risk to various chronic conditions like diabetes. A national survey conducted by the Centers for Diseases Control and Prevention (CDC) is the annual Behavioral Risk Factor Surveillance Survey (BRFSS). Twitter provides researchers with a new opportunity and alternative data source to collect information regarding health behaviors using real-time data. Previous studies have demonstrated Twitter’s ability to monitor …