Digital Commons Network^™

Civic Life In The Divided Metropolis: Social Capital, Collective Action, And Residential Income Segregation, Amber Wichowsky

Political Science Faculty Research and Publications

Social capital is presumed to help individuals who lack financial or human capital achieve collective action through their social ties and networks of relationships. But does it help individuals overcome their socioeconomic disadvantages relative to their wealthier neighbors, or does the accumulation of social capital merely reproduce socioeconomic disparities, particularly in economically segregated places? Leveraging data from the Current Population Survey, I test whether residential income segregation is associated with larger income differences in social capital investments and collective action. I find that in more economically segregated places, wealthier residents are more likely to be members of neighborhood organizations and …

Improved Methods For The Quantification Of Viable Ascaris Suum And Application To Biosolids, Tanner Keyzers

Dissertations, Master's Theses and Master's Reports

The current method for detection of Ascaris ova in biosolids and wastewater has several drawbacks including being labor and time intensive as well as being difficult to quantify viable ova that have larvated during treatment. The goal of this thesis was to improve several methods for the detection and quantification of Ascaris ova during long term-storage of biosolids including improvement of quantifying viable ova using a heat and bleach treatment to promote movement of larvae inside of ova, and comparison of the traditional microscopic method with qPCR and PMA-qPCR to prevent the false-positive results. Improved methods to promote movement of …

Gold Mining And Economic Performance In Africa And The Case Of Ghana, Josephine Amponsem

Dissertations, Master's Theses and Master's Reports

Based on the statistical analysis of 920 observations covering forty-six countries during the 1997 to 2016 period, this study investigates the impact of goldmining on the economic performance of African nations while paying particular attention to the case of Ghana. It employs the GDP’s output approach to evaluate the role that gold production may have played on GDP growth at the aggregate and per capita levels, as well as potential spillover effects across the services, industry and agriculture sectors. The empirical results for the African economies as a whole as well as for the country of Ghana in particular, suggest …

Enhancing The Resolution Of Imaging Systems By Spatial Spectrum Manipulation, Wyatt Adams

Dissertations, Master's Theses and Master's Reports

Much research effort has been spent in the 21st century on superresolution imaging techniques, methods which can beat the diffraction limit. Subwavelength composite structures called ``metamaterials" had initially shown great promise in superresolution imaging applications in the early 2000s, owing to their potential for nearly arbitrary capabilities in controlling light. However, for optical frequencies they are often plagued by absorption and scattering losses which can decay or destroy their interesting properties. Similar issues limit the application of other superresolution devices operating as effective media, or metal films that can transfer waves with large momentum by supporting surface plasmon polaritons. In …

Development Of A 2d Scr Catalyst On A Diesel Particulate Filter Model For Design And Control Applications To A Ultra Low Nox Aftertreatment System, Venkata Chundru

Dissertations, Master's Theses and Master's Reports

This research focuses on modeling and control of PM and NO_x in diesel engine exhaust using an SCR catalyst on a Diesel Particulate Filter (SCR-F). A 2D SCR-F model was developed that is capable of predicting internal states: 2D temperature, PM and NH₃storage distributions and filtration efficiency, pressure drop, PM mass retained in the PM cake and substrate wall and outlet NO, NO₂and NH₃concentrations. The SCR-F model was used to simulate a DOC + SCR-F + DOC + SCR ultra-low NOx system that can achieve > 99.5% NOx conversion efficiency.

The model was calibrated …

Flood Inundation Mapping For Huron Creek, Houghton County, Michigan, Sarah Washko

Dissertations, Master's Theses and Master's Reports

The 2018 Father’s Day Flood rattled the Houghton County, MI community. Thousands of dollars in damage to public and private property were incurred due to slope failure, scour and stagnant water. Though the flood was billed as a once-in-a-lifetime event, hazard mitigation planning has become essential, as extreme weather events are expected to become more frequent with a changing climate. While Federal Emergency Management Agency funding will provide detailed flood hazard maps in the future, mapping is expected to be several years out. To aid the City of Houghton community with immediate flood hazard mitigation planning, a hydraulic-based flood depth …

Contextual Bandit Modeling For Dynamic Runtime Control In Computer Systems, Jason Hiebel

Dissertations, Master's Theses and Master's Reports

Modern operating systems and microarchitectures provide a myriad of mechanisms for monitoring and affecting system operation and resource utilization at runtime. Dynamic runtime control of these mechanisms can tailor system operation to the characteristics and behavior of the current workload, resulting in improved performance. However, developing effective models for system control can be challenging. Existing methods often require extensive manual effort, computation time, and domain knowledge to identify relevant low-level performance metrics, relate low-level performance metrics and high-level control decisions to workload performance, and to evaluate the resulting control models.

This dissertation develops a general framework, based on the contextual …

Assessing Benthic Recovery In The Torch Lake Aoc, Anya Clare Leach

Dissertations, Master's Theses and Master's Reports

Torch Lake, located in Michigan’s Upper Peninsula, was a site of copper ore processing from the 1860s through the 1960s. During this time, various mining by-products were deposited into the lake and along its shoreline, including mine tailings and associated heavy metals contaminants (e.g., copper). It was anticipated that natural sediment deposition would cover and attenuate toxic sediments over time, but a comprehensive assessment of the benthos has not been performed since a baseline survey conducted in 1999 and 2000. This study was conducted in 2018 to evaluate the current benthic community status as well as sediment composition and metal …

Antitrust And Consumer Protection, Leslie Sara Hyman, Matthew J. Mcgowan

SMU Annual Texas Survey

No abstract provided.

Oil, Gas, And Mineral Law, Richard F. Brown

SMU Annual Texas Survey

No abstract provided.

Professional Liability, Evan A. Kirkham, Cara D. Little, Hayden M. Baker

SMU Annual Texas Survey

No abstract provided.

What Works: Learning Outcomes Due To Design Variations In Community College Student Success Courses, Deryl K. Hatch-Tocaimaza, Crystal E. Garcia, Naomi Mardock-Uman, Sarah L. Rodriguez, Dallin George Young

Department of Educational Administration: Faculty Publications

Background/Context: Based on well-established evidence that certain student success skills and college knowledge are closely associated with academic achievement, persistence, and completion, community colleges increasingly implement various types of first-year student success courses and programs. However, by looking only at the distal impact of program participation, the question of whether these programs actually influence those mediating skills of college success has scarcely been investigated in the higher education literature, let alone which program features may be determining factors. Purpose/Objective: This study examined the scope and design of community college student success courses to address which program features relate to learning …

Continuous Low-Intensity Ultrasound Attenuates Il-6 And Tnfα-Induced Catabolic Effects And Repairs Chondral Fissures In Bovine Osteochondral Explants, Neety Sahu, Hendrik J. Viljoen, Anuradha Subramanian

Department of Chemical and Biomolecular Engineering: Faculty Publications

Background: Cartilage repair outcomes are compromised in a pro-inflammatory environment; therefore, the mitigation of pro-inflammatory responses is beneficial. Treatment with continuous low-intensity ultrasound (cLIUS) at the resonant frequency of 5 MHz is proposed for the repair of chondral fissures under pro-inflammatory conditions.

Methods: Bovine osteochondral explants, concentrically incised to create chondral fissures, were maintained under cLIUS (14 kPa (5 MHz, 2.5 Vpp), 20 min, 4 times/day) for a period of 28 days in the presence or absence of cytokines, interleukin-6 (IL-6) or tumor necrosis factor (TNF)α. Outcome assessments included histological and immunohistochemical staining of the explants; and the expression of …

Exploring Predictors Of Sense Of Belonging In Trinidad And Tobago, Elizabeth Niehaus, Letitia Williams, Stephanie Zobac, Miles Young, Adam Fullerton

Department of Educational Administration: Faculty Publications

Over the past two decades, Trinidad and Tobago has promoted explosive expansion of tertiary education. As with many growing postsecondary education systems, this increase in tertiary enrollment has led to the development of student support services (Haddad & Altbach, 2009). The field of student services is growing throughout the Caribbean (Reynolds, 2008), but there is currently little research on the role of student services in fostering students’ sense of belonging specific to the Caribbean cultural context. Using data from over 900 students at the University of Trinidad and Tobago, we examined students’ sense of belonging in the context of T&T. …

Making Sense Of Place: A Case Study Of A Sensemaking In A Rural School-Community Partnership, Sarah J. Zuckerman

Department of Educational Administration: Faculty Publications

Cross-sector, place-based, school-community partnerships seeking to improve educational and other outcomes at scale have experienced a resurgence in the United States. Rather than isolated eff orts, this new generation relies on scaling up models in networks, such as Strive Together. However, many of these models evolved in urban contexts, creating challenges for scaling up in rural areas with fewer organizations, limited resources, and lower population density. Using conceptions of sensemaking as precursor for collective action, this case study examines the strategies used by partnership leaders in a rural county to make sense of Strive and the local community. By iteratively …

High-Quality Genome-Scale Metabolic Modelling Of Pseudomonas Putida Highlights Its Broad Metabolic Capabilities, Juan Nogales, Joshua Mueller, Steinn Gudmundsson, Francisco J. Canalejo, Estrella Duque, Jonathan Monk, Adam M. Feist, Juan Luis Ramos, Wei Niu, Bernhard O. Palsson

Department of Chemical and Biomolecular Engineering: Faculty Publications

Genome-scale reconstructions of metabolism are computational species-specific knowledge bases able to compute systemic metabolic properties. We present a comprehensive and validated reconstruction of the biotechnologically relevant bacterium Pseudomonas putida KT2440 that greatly expands computable predictions of its metabolic states. The reconstruction represents a significant reactome expansion over available reconstructed bacterial metabolic networks. Specifically, iJN1462 (i) incorporates several hundred additional genes and associated reactions resulting in new predictive capabilities, including new nutrients supporting growth; (ii) was validated by in vivo growth screens that included previously untested carbon (48) and nitrogen (41) sources; (iii) yielded gene essentiality predictions showing large accuracy …

Logics Of Accountability: Cross-National Patterns In School-Level Controls, Taeyeon Kim, John T. Yun

Department of Educational Administration: Faculty Publications

This paper explores multiple logics of accountability by examining patterns of control of various school functions under different accountability systems. Research has shown that accountability is a global phenomenon, but how accountability is understood and enacted is locally contextualized, which implies the existence of multiple logics of accountability in practice. By linking theoretical arguments rooted in literature to empirical evidence observed in TALIS 2013, we aim to theorize logics of accountability and then demonstrate the existence of those logics across countries. We first developed a framework of logics of accountability: control-based, professional-based, test-based, and process-based accountability. We then empirically analyzed …

Alcohol Metabolism Potentiates Hiv-Induced Hepatotoxicity: Contribution To End-Stage Liver Disease, Murali Ganesan, Moses New-Aaron, Raghubendra Singh Dagur, Edward Makarov, Weimin Wang, Kusum K. Kharbanda, Srivatsan Kidambi, Larisa Y. Poluektova, Natalia A. Osna

Department of Chemical and Biomolecular Engineering: Faculty Publications

In an era of improved survival due to modern antiretroviral therapy, liver disease has become a major cause of morbidity and mortality, resulting in death in 15–17% of human immunodeficiency virus (HIV)-infected patients. Alcohol enhances HIV-mediated liver damage and promotes the progression to advanced fibrosis and cirrhosis. However, the mechanisms behind these events are uncertain. Here, we hypothesize that ethanol metabolism potentiates accumulation of HIV in hepatocytes, causing oxidative stress and intensive apoptotic cell death. Engulfment of HIV-containing apoptotic hepatocytes by non-parenchymal cells (NPCs) triggers their activation and liver injury progression. This study was performed on primary human hepatocytes and …

The Necessity, Public Interest, And Proportionality In International Investment Law: A Comparative Analysis, Abdulkadir Gülçür

University of Baltimore Journal of International Law

This article deals with relations of the three concepts of international investment law which can be enumerated as “necessity,” “public interest,” and “proportionality.” These three concepts have been reviewed in the light of the relevant investment tribunals’ decisions and judgments of other international judicial bodies. In democratic governments, legal acts and actions must be based on the “public interest.” However, the “public interest” does not constitute by itself a determinative factor for lawfulness. The proportionality principle has a significant role in the investment arbitrations concerning whether the “public interest” aim is met. Albeit those inferences, the “public interest” claim is …

A Comparison Of The Rey Complex Figure And The Wechsler Scales, Amanda M. Brantley

Murray State Theses and Dissertations

This study was conducted to determine the correlation among the Wechsler Intelligence Scales and the Rey Complex Figure Test, a measure of visual memory, in a clinical sample. The purpose was to determine the point at which a difference between cognitive ability scores (at the overall ability level or at the index level) and visual memory scores would be statistically meaningful. Participants in this study were selected from clinical client folders with completed variables of interest. The mean age of the 64 participants was 21 years (SD = 12.6). Statistically significant correlations were found among three of the four …

A Survey On Horse Use And Management In Horse Clubs In China: A Pilot Study, Zhen Li, Zhen Li

Murray State Theses and Dissertations

During the past three decades, significant development of the Chinese equine industry has resulted in a rapid increase in the number of horses in the country. At the same time, many horse clubs face shortages of trained management personnel or specialists in equine science and technology. The objective of this survey was to document and evaluate horse management and use in Chinese horse clubs. A 29-question survey was developed using SurveyMonkey© and tested on a small pilot group before being revised and released to a general pool of participants. The questionnaire link was distributed through WeChat to specific personnel in …

Barriers To Change For Augmentative And Alternative Communication, Lauren E. Brown

Murray State Theses and Dissertations

The purpose of this study was to identify the effects of counseling training on speech language pathologists’ (SLPs) perceived competency to address Attitude Barriers within the augmentative and alternative communication (AAC) assessment process as presented by Beukelman and Mirenda (2005). Counseling techniques, such as the use of the Readiness to Change© tool, are within the scope of practice for SLPs. Unfortunately, there is a lack of research on how to apply these tools and techniques with individuals who use AAC .

A training seminar was conducted to educate participants in the use of the Readiness to Change© tool. Data was …

A People So Different From Themselves: British Attitudes Towards India And The Power Dynamics Of The East India Company, Eric Gray

Murray State Theses and Dissertations

Gray, Eric, A People So Different from Themselves: British Attitudes Towards India and the Power Dynamics of the East India Company. Master of Arts (History), April, 2019, Murray State University, Murray, Kentucky.

Today, many characteristics of the nineteenth- and twentieth-century British Raj are well ingrained in the public consciousness, particularly Victorian Era Britons’ general disdain for numerous aspects of the many cultures found on the Indian Subcontinent. Moreover, while many characteristics of the preceding East India Company’s rule in India were no less exploitative of Indian peoples, evidence shows a much different relationship between British and Indian cultures during the …

American Bolsheviki: The First Red Scare In The United States, 1917 To 1920, Jonathan Dunning

Murray State Theses and Dissertations

This thesis looks to reframe the timeline of the First Red Scare in United States History. Historians of this period have consistently viewed the First Red Scare as occurring from 1919 to 1920. However, by viewing the First Red Scare as beginning in 1919, historians missed the fear of communism that developed in the US government and the American press and society throughout 1917 and 1918, starting immediately after the Bolshevik Revolution. Moreover, in the past, historians have done little to detail the connections between the Allied Intervention in Russia from 1918 to 1920 and the First Red Scare, despite …

A Concurrent Validity Study Of The Missouri Adaptive Ability Scale And The Adaptive Behavior Assessment System, Third Edition—Teacher Form, Lindsey Hansen

Murray State Theses and Dissertations

This study utilizes correlational data to demonstrate the construct validity of the Missouri Adaptive Ability Scale (MAAS) by comparing it to Adaptive Behavior Assessment System, Third Edition (ABAS-3) Teacher Form, a thoroughly researched and validated measure of independent living and adaptive functioning. The purpose was designed to extend research conducted to achieve construct validity of the MAAS. Twenty-six high school students with low incidence handicapping conditions (M = 17 years old) were included in this study. The ABAS-3 Teacher Form was obtained from archives and the MAAS was administered directly to the participants by the author. Pearson correlations revealed strong …

Nucleophilic Phosphine Addition: Exploration Of Novel Alkyne Transformations, Brett Pierce

Murray State Theses and Dissertations

Nucleophilic phosphine catalysis has demonstrated its value in synthetic chemistry by allowing for mild carbon-carbon bond formation. Many phosphine-catalyzed reactions with electron-deficient alkynes have been reported in recent years, leading to an array of valuable products. Stemming from this field of study, phosphines can also be utilized as mild chemoselective reductants for alkynes, resulting in the corresponding alkenes. Herein, a mild, stereoselective, phosphine-mediated partial reduction of alkynes to (E)- and (Z)-alkenes is described. Specifically, a general method for the partial reduction of ynoates to the corresponding (E)- and (Z)-enoate, …

The Impact Of Gender Normed Scoring Of The Brief Symptom Inventory On Trans* Individuals, Ashley Megan Bieze Wilson

Murray State Theses and Dissertations

The purpose of this research was to investigate the significance of the choice of gender normed scoring on the Brief Symptom Inventory (BSI) (Derogatis, 1993) when assessing cisgender and trans* or gender non-conforming individuals. This study compared two groups, cisgender and trans* individuals, on male and female gender normed scoring for the BSI. Each participant’s responses on the BSI were scored using both male and female norms and the number of clinically significant elevations (T-score ≥ 63) was counted. Results indicated that regardless of gender identity or sex-assigned-at-birth (SAAB), a higher mean number of elevations was found when using male …

An Evaluation Of The Racer Academy Of Agriculture And Its Effectiveness, Caleb Brannon

Murray State Theses and Dissertations

Through this thesis research study, an evaluation of the Racer Academy of Agriculture (RAA) is performed to get a better understanding of how well it is doing in several key areas. One of the focus areas for the RAA as well as most other dual credit programs includes allowing high school students to attain college credit through participation in a class that counts both towards high school and collegiate degree completion. Other key objectives for these programs include aiding in the recruitment of students to the participating university, preparing the students to succeed at a higher rate once becoming full-time …

The Impact Of Content Mastery On Sequential Standards, Michael Newman, Michael Newman

Murray State Theses and Dissertations

Mastery of P-12 academic standards is based on a learning process that is sequential and that can be broken into key components for varying students. Key ideas need to be learned before others can be mastered and it is important to know which key ideas are needed before others can be presented. The common problem for students in mathematics is that the content scaffolds and for the teacher, it can be a difficult decision of when to proceed and when not to. Yet, high stakes testing mandates a fast pace of instruction which leaves many students chronically behind. The purpose …

Social Networking Sites And Physical Activity: The Role Of Framed Health Messages, Cassie Gonzalez

Murray State Theses and Dissertations

Cardiovascular disease, cancer, and diabetes are the current leading causes of death in the United States, where most of these diseases are caused by a few specific risk behaviors including tobacco use, poor nutrition, and lack of physical activity (Rutledge, Lane, Merlo, & Elmi, 2018). Healthcare professional are being encouraged to educate patients and the community about the risks associated with health behaviors and lifestyle choices. I explore aspect of these health messages in the context of gain- vs loss-framed messages presented through two social networking sites, Twitter and Instagram, on subsequent health behavior changes. Whereas existing literature have explored …