979 Works

AN ASSESSMENT OF 2D AND 3D SPATIAL ACCURACY OF PHOTOGRAMMETRY FOR LIVESTOCK HEALTH MONITORING

Luis Felipe Pampolini
The overall objective of this study was to evaluate the use of consumer-grade unmanned aircraft systems for image-based remote sensing in agriculture with application towards livestock health monitoring. A two-dimensional spatial error experiment was conducted to quantify the spatial accuracy of georeferenced orthomosaic imagery collected using a drone and processed with photogrammetry software. Treatment variables included altitude above ground level and image data type (visible and multispectral). The results from the ANOVA test indicated that...

QUANTIFYING NITROGEN FATE IN KARST AGROECOSYSTEM STREAMS OF CENTRAL KENTUCKY NUMERICAL MODELING AND INSIGHT FROM HIGH-RESOLUTION SENSORS

Nolan Bunnell
In-stream fate of nutrients in karst agroecosystems remains poorly understood, despite the known impact of karst on water resources at local to global scales. In the Inner-Bluegrass region of central Kentucky, heterogeneity of karst maturity, flow pathways, and nutrient sources adds to the complexity of quantifying nutrient dynamics, thus requiring novel monitoring and modeling approaches. The significance of these streams is recognized given spring/surface water confluences have been identified as hotspots for biogeochemical transformations. In...

EFFECTS OF HYDROLOGIC VARIATIONS ON HYDRAULIC AND DEFORMATIONAL CHARACTERISTICS OF UNSATURATED SOILS

Majid Mahmoodabadi
Constitutive models that can provide useful insight into the deformational mechanism induced by hydrologic variations are vital for design and analysis of structures where unsaturated regime predominates. An accurate description of unsaturated soils’ behavior not only requires a vigorous constitutive model, but essentially is achievable using real-time mechanical (e.g. small-strain shear modulus) and hydrologic data sets. The main objective of this research was to develop a robust constitutive scheme that is compatible to quick fluctuations...

Evaluation of Alternative Rumble Strip Designs

William Nicholas Staats, Kenneth R. Agent & Brian K. Howell
Since Kentucky’s initial rumble strip designs were adopted, there has been additional research and experimentation in other states with alternative designs as a response to complaints from the public about noise pollution caused by rumble strips. The new research indicates that other rumble strip designs might provide increased interior noise/vibration with decreased exterior noise. Application of these alternative designs in Kentucky could result in improved rumble performance, reduced damage to new pavement, decreased noise pollution,...

Editor’s Preface and Acknowledgements

Aimee Imlay & Matthew Wentz
The 2019-2020 disClosure collective is thrilled to present the 29th volume of disClosure: A Journal of Social Theory. This volume focuses on theories of populism and brings together a wide range of perspectives relating to the phenomenon, experience, and study of populism.

Making the People

Paulina Ochoa Espejo, David Cortés Ferrández & Sandra Nava Nieto
Paulina Ochoa Espejo is an Associate Professor of political science at Haverford College. She is the author of On Borders: Territories, Legitimacy and the Rights of Place (OUP, 2020), The Time of Popular Sovereignty: Process and the Democratic State (PSUP, 2011) and co–editor of the Oxford Handbook of Populism (2017).

Reactionary Populism and the Historical Erosion of Democracy in America

Nancy Maclean, Aimee Imlay & Matthew Wentz
Nancy MacLean is the William H. Chafe Professor of History and Public Policy at Duke University, and the award-winning author of several books, including Behind the Mask of Chivalry: The Making of the Second Ku Klux Klan; Freedom is Not Enough: The Opening of the American Workplace; The American Women’s Movement, 1945-2000: A Brief History with Documents; and Debating the American Conservative Movement: 1945 to the Present. She also served the editor of Scalawag: A...

MEASURING POSTSECONDARY STUDENTS’ SENSE OF BELONGING

John Eric Lingat
Research suggests sense of belonging in academic contexts influences student academic outcomes and well-being. Instruments (i.e., surveys, questionnaires) developed to measure sense of belonging mainly focus on the experience of students in middle grades. Few instruments measure sense of belonging experienced by postsecondary students, despite many colleges and universities seeking to improve retention, persistence, and graduation by addressing this complex construct. Furthermore, the rapid growth of online courses necessitates and presents an opportunity to employ...

TOWARDS THE RATIONAL DESIGN OF ORGANIC SEMICONDUCTORS THROUGH COMPUTATIONAL APPROACHES

Qianxiang Ai
Though organic semiconductors have illustrated potential as industry-relevant materials for electronics applications, there are few guidelines that can take one from molecular design to functional materials. This limitation is, in part, due to incomplete understanding as to how the atomic-scale construction of the π-conjugated molecules that comprise the organic semiconductors determines the nature and strength of both the noncovalent intramolecular interactions that govern molecular conformation and noncovalent intermolecular interactions that regulate the energetic preference for...

ANTERIOR CRUCIATE LIGAMENT INJURY-INDUCED ALTERATIONS IN INFLAMMATION AND MUSCLE PHYSIOLOGY

Emily Hunt
Long term weakness and atrophy of the quadriceps muscle are a direct result of anterior cruciate ligament (ACL) injuries and persist for up to 10 years post injury. Muscle atrophy ensues regardless of ligamentous reconstruction surgery, indicating that muscle atrophy following injury is a function of the ligament rupture and not reconstruction surgery. Elucidating the mechanisms underlying quadriceps atrophy following ACL rupture is crucial for developing interventions to restore proper quadriceps size and mitigate weakness...

PATHOGENICITY, TOXIGENIC POTENTIAL, AND GENOMICS OF Fusarium graminearum AND F. meridionale CAUSING EAR AND STALK ROT OF MAIZE

Franklin Machado
Gibberella ear (GER) and stalk rot (GSR) diseases of maize in Brazil are caused mainly by Fusarium meridionale, a species belonging to the Fusarium graminearum species complex (FGSC). Another species within this complex, F. graminearum sensu stricto (hereafter F. graminearum), is second in importance on maize, but is the most common species found causing Fusarium Head Blight disease of wheat in Brazil. The latter species is the predominant cause of GER and GSR in North...

ENCOURAGING HEALTHY EATING AMONG OLDER ADULTS USING THE TRANSTHEORETICAL MODEL

Lauren Brinkman Roberson
Older adults, defined as those age 60 and above, are at an increased risk for many health-related complications that are directly related to nutrition (Centers for Disease Control and Prevention, 2015). This study highlights the lack of nutrition education material developed for older adults in Kentucky. Such material has great potential to influence the health of older adults (Chernoff, 2001). This study evaluated an intervention developed, by means of formative research, to teach older adults...

BINARY BRIGHT-LINE DECISION MODELS FOR GOING CONCERN ASSESSMENT

Sid Bundy
In August, 2014, the Financial Accounting Standards Board issued an update concerning the disclosure of uncertainties about an entity’s ability to continue as a going concern. The standard requires an entities management to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. One consequence of this regulation is the need for guidance for audit testing of management’s assessments in...

Hadoop-EDF

Yuanyuan Wu
The rapidly growing volume of electrophysiological signals has been generated for clinical research in neurological disorders. European Data Format (EDF) is a standard format for storing electrophysiological signals. However, the bottleneck of existing signal analysis tools for handling large-scale datasets is the sequential way of loading large EDF files before performing an analysis. To overcome this, we develop Hadoop-EDF, a distributed signal processing tool to load EDF data in a parallel manner using Hadoop MapReduce....

EFFECTS OF NATURALISTIC TIME DELAY ON PROMOTING FUNCTIONAL REQUESTS USING AAC IN PRESCHOOLERS WITH AUTISM SPECTRUM DISORDERS

Brianna Rinaldi
The purpose of this study was to teach preschool children with autism spectrum disorders to make requests with a speech generating device using a naturalistic time delay prompting procedure. The participants in this study were two males, enrolled in a public preschool program, between four and five years old. Both participants showed significant delays in expressive communication requiring alternative and augmented communication. The study utilized a multiple probe design across behaviors. Results showed utilizing naturalistic...

Endowments of Higher Education Institutions and Individual Income Tax Policy

Jennifer W. Siebenthaler
The most significant tax overhaul bill in over thirty years was enacted in 2017 and expected to have wide-ranging effects. The Tax Cuts and Jobs Act includes numerous policies that directly and indirectly impact the higher education sector and the effect to endowments was not addressed in the public debate leading up to enactment. Unlike expendable gifts, a reduction in endowment contributions has a cumulative effect because a gift to an endowment can benefit all...

A Performance Guide to Arthur Bliss's Sonata for Viola and Piano

Andrew Braddock
Arthur Bliss’s Sonata for Viola and Piano stands as a significant achievement in early twentieth-century chamber music for viola and is the result of a fruitful collaboration between composer and virtuoso performer. Multiple scholars recognize the sonata as one of Bliss’s finest works. Despite these accolades, the work has failed to attract sustained scholarly investigation. This document provides performers with the necessary tools for a thorough and contextualized presentation of the work. The main body...

CONNECTING THE PIECES

Alexa Johnson
Low back pain in collegiate athletes has been reported at a rate of 37% from a wide array of sports including soccer, volleyball, football, swimming, and baseball. Whereas, in a military population the prevalence of low back pain is 70% higher than the general population. Compensatory movement strategies are often used as an attempt to reduce pain. Though compensatory movement strategies may effectively reduce pain, they are often associated with altered lower extremity loading patterns....

Fanny Hensel's Das Jahr

Lindsay Gray Clavere
On Christmas Day in 1841, Fanny Hensel presented her husband with a Christmas gift—Das Jahr—a piano cycle comprised of twelve pieces, each one depicting a month of The Year. Not long thereafter, Fanny and husband Wilhelm would collaborate to create a Gesamtkunstwerk, reworking Das Jahr and expanding it by two additional expressions: vignettes drawn into the score by Wilhelm, and epigrams, snippets of poetry by master German poets. This dissertation seeks to answer the question:...

Multi-Scale Computational Studies of Calcium (Ca2+) Signaling

Bin Sun
Ca2+ is an important messenger that affects almost all cellular processes. Ca2+ signaling involves events that happen at various time-scales such as Ca2+ diffusion, trans-membrane Ca2+ transport and Ca2+-mediated protein-protein interactions. In this work, we utilized multi-scale computational methods to quantitatively characterize Ca2+ diffusion efficiency, Ca2+ binding thermodynamics and molecular bases of Ca2+-dependent protein-protein interaction. Specifically, we studied 1) the electrokinetic transport of Ca2+ in confined sub-µm geometry with complicated surfacial properties. We characterized the...

But What Has Helga Crane to Do with the West Indies?

Rachel Carr
“But What Has Helga Crane to Do with the West Indies? Plantation Afterlives in the Black Atlantic” situates the emergence of the southern gothic in modernist American and Caribbean works as a response to the shifting cultural narrative of the plantation in the twentieth century. In this project, I argue that the plantation seeps out of its place and time to haunt landscapes it may never have touched and times in which slavery is long...

Fast, Sparse Matrix Factorization and Matrix Algebra via Random Sampling for Integral Equation Formulations in Electromagnetics

Owen Tanner Wilkerson
Many systems designed by electrical & computer engineers rely on electromagnetic (EM) signals to transmit, receive, and extract either information or energy. In many cases, these systems are large and complex. Their accurate, cost-effective design requires high-fidelity computer modeling of the underlying EM field/material interaction problem in order to find a design with acceptable system performance. This modeling is accomplished by projecting the governing Maxwell equations onto finite dimensional subspaces, which results in a large...

THE FABRICATION AND CHARACTERIZATION OF METAL OXIDE NANOPARTICLES EMPLOYED IN ENVIRONMENTAL TOXICITY AND POLYMERIC NANOCOMPOSITE APPLICATIONS

Matthew Hancock
Ceria (cerium oxide) nanomaterials, or nanoceria, have commercial catalysis and energy storage applications. The cerium atoms on the surface of nanoceria can store or release oxygen, cycling between Ce3+ and Ce4+, and can therefore act as a therapeutic to relieve oxidative stress within living systems. Nanoceria dissolution is present in acidic environments in vivo. In order to accurately define the fate of nanoceria in vivo, nanoceria dissolution or stabilization is observed in vitro using acidic...

RELATIVE COMPETITIVE ABILITIES, INTERSEXUAL OVERYIELDING, AND POPULATION SEX RATIO CHANGES IN A BRYOPHYTE

Zachary Stanley
Unequal sex ratios are widespread in dioecious plants and understanding their cause is important to understanding fundamental aspects of their population dynamics, and yet what causes biased sex ratios in plants is still poorly understood. Competition experiments have been used in plants to predict the outcome of species interactions, but they have rarely been used to help explain sex ratio bias. This study used a response surface competition design to measure the relative competitive abilities...

Crustal Density Variation of the Eastern U.S.

Henglei Zhang, Dhananjay Ravat & Anthony R. Lowry
EarthScope’s USArray Transportable Array (TA) has shortcomings for the purpose of interpreting geologic features of wavelengths less than the 70 km TA station spacing, but these can be overcome by using higher spatial resolution gravity data. In this study, we exploit USArray receiver functions to reduce non-uniqueness in the interpretation of gravity anomalies. We model gravity anomalies from previously-derived density variations of sedimentary basins, crustal Vp/Vs variation, Moho variation, and upper mantle density variation derived...

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