Digital Commons Network^™

E-Waste In Relation To Geopolitical Forces: A Case Study Of The United States - Mexico Border Region, Michael A. Hicks

Theses and Dissertations

Analysis deconstructs the electronic waste industry and its interconnectedness to geopolitical forces and economic development in the border region between San Diego, California and Tijuana, Mexico. A symbiotic business relationship exists between informal e-waste collectors, non-profit collection sites, and for-profit recyclers. Fieldwork data is analyzed from a slow/structural violence perspective.

Slavery, Migration, And Local Development In The Western Us, Colin Q. Sharpe

Theses and Dissertations

This paper examines the effects of migration from eastern slave states in the 19th century on the subsequent development of counties in the Western US. I find that increased migration from slave states has a large, statistically significant negative effect on 2010 income, and no significant effect on racial inequality or overall income inequality. These findings are robust to a variety of specifications, including controls for geographic factors, state fixed effects, and various county level social and economic conditions. Data on individual migrants suggest that the cause of the negative income effect is the lower average human capital endowment of …

Rail: African & African American Labor And The Ties That Bind In The Atlantic World, Benjamin David Wendorf

Theses and Dissertations

As was intended, the construction of railways transformed the landscape and societies of the Atlantic World. Great fortunes and forces emerged in the directions of the tracks, sufficient to create structures of economy and organize communities in ways that persisted long after a railway’s use had diminished. In this dissertation, the author argues that the connections and reorganization effected by railway construction created new economic paths in the American South, Panama, and Gold Coast West Africa; the transformations were marked by struggles for power along racial lines, enslavement and coercion in labor, and the interchange between communities and their existing …

The Development Of An E-Learning Usability Scale For Higher Education, Zoroayka V. Sandoval

Theses and Dissertations

In order to measure usability in higher education online courses, the E-Learning Usability Scale for Higher Education was developed in this study. After an extensive review of literature, the E-Learning Usability Evaluation Questionnaire developed by Zaharias (2009) was the closest instrument found to be free and available. However, this instrument was designed to measure usability for corporate settings and an adaptation of the items was required for online courses in higher education. The purpose of this study was to design a usability instrument for online courses in higher education from an original instrument designed for corporate settings, and to determine …

Leadership Development And Ethnic Identity Of Latina/O Students At Rowan University, Andrew Montanez

Theses and Dissertations

The purpose of this study was to investigate the influences of leadership and ethnic identity among selected Rowan University Latina/o undergraduate students. More specifically, the study replicated Oldham’s (2008) research, which was based on Erikson's Identity Development Theory (1980) and the Leadership Identity Model of Komives, Owen, Longerbeam, and Mainella (2005). In addition, the study probed how Latina/o Rowan University undergraduate students viewed their ethnicity using Phinney’s (1992) Multigroup Ethnic Identity Measure (MEIM).

Students were surveyed randomly via an electronic version of the instrument on Rowan’s Volvici survey software, and by convenience sampling through paper formatted surveys gathered at the …

Developmental Changes In Response To Music-Evoked Emotion Among Children And Adolescents With Autism Spectrum Disorders, Kevin G. Stephenson

Theses and Dissertations

Significant symptoms of anxiety in individuals with autism spectrum disorder (ASD) may arise due to impaired emotion recognition. In light of reports showing ASD-specific developmental changes in amygdala volumes, we expanded a previous study of recognition of music-evoked emotions in ASD versus typical controls (CON). We explicitly compared both behavioral and psychophysiological response to music-evoked emotions of children (ages 8-11) and older adolescents (ages 16-18). A total of 91 participants (42 ASD) listened to segments of instrumental music that had been previously validated to evoke happy, sad, or scary emotional valence. We measured accuracy and reaction time while also …

Development Of Pressure Swing Adsorption (Psa) Processor Co2 Capture From Flue Gas, Md. Atikur Rahman

Theses and Dissertations

Reducing the anthropogenic CO2 emissions and lowering the concentration of greenhouse gases in the atmosphere has become one of the most important environmental issues of recent times. To this end, the development of a cost effective pressure swing adsorption (PSA) process, utilizing commercially available 13X zeolite as the adsorbent, is underway to remove and concentrate CO2 in the flue gas of a coal-fired power plant. This systematic development effort has been carried out so far at the bench scale. It has included the following studies that defined and validated this PSA process both experimentally and via a PSA process model. …

Development And Application Of Bayesian Semiparametric Models For Dependent Data, Junshu Bao

Theses and Dissertations

Dependent data are very common in many research fields, such as medicine (repeated measures), finance (time series), traffic (clustered), etc. Effective control/modeling of the dependency among data can enhance the performance of the models and result in better prediction. In many cases, the correlation itself may be of great interest. In this dissertation, we develop novel Bayesian semi-/nonparametric regression models to analyze data with various dependence structures. In Chapter 2, a Bayesian non- parametric multivariate ordinal regression model is proposed to fit drinking behavior survey data from DWI offenders. The responses are two-dimensional ordinal data, drinking frequency and drinking quantity …

Responsibility For Displacement: Between Denial And Obfuscation, Veronica Øverlid

Theses and Dissertations

When refugees and migrants arrive in Europe, European states portray themselves as inadvertent hosts to unanticipated crises: well-intentioned, sorely-stretched, and attempting to negotiate a reasonable solution and find the middle ground between fairly balancing the needs of refugees and their own citizens. To the contrary, I argue that European states, like many other developed countries, themselves take part in creating conditions for displacement in the Third World. This is done through, among other things, international legal regimes for the global economy, trade, war, and the environmental. Although local factors also play an important role in Third World displacement, external interventions …

Applying The Water Governance Framework On Rural Water Development Projects In Guatemala, Muhanad M. Alkharaz

Theses and Dissertations

According to the Organization for Economic Cooperation and Development (OECD), ‘Water crisis is mainly a governance crisis’, (OECD, 2013). Many water experts, as individuals, organizations and even governmental bodies have developed water governance frameworks to overcome water challenges on local, national, and international levels such as Integrated Water Resource Management. In rural areas, especially in developing countries, access to safe drinking water is a daily challenge due to a variety of political, economic, and social constraints. For in-stance, some developing countries have a strong centralized governance system. Due to lack of capacity and resources, central governments are incapable of providing …

Veteran As Leader: The Lived Experience With Army Leader Development, Michael James Kirchner

Theses and Dissertations

This phenomenological study examined the lived leader development experience of Post 9/11 Army veterans while serving in the armed forces. At least $10-$15 billion is spent annually on leadership development in the United States and human resource executives claim developing leaders is their number one priority over the next five years. Simultaneously, companies actively hiring veterans claim the former service member's leadership abilities are their most desired quality. Inspection of the Army’s leader development program offers an opportunity for employers to integrate revised approaches in their own leadership development initiatives.

A purposive sample of ten Army veterans—six males and four …

Development Of Reactions And Methods For Labeling Biomolecules In Cells, Enoch Agbesi Adogla

Theses and Dissertations

The complexity of cellular environments presents a challenge to efforts at studying and elucidating biomolecules in cells. Covalent ligation of biomolecules with fluorescent molecules that have a reactive functional group that can react with a complementary functional group on biomolecules is one way that has been utilized to study biomolecules. It enables visualization and tracking of ligation and transportation of molecules within the cell. However, the myriad of functional groups within the cell makes achieving selectivity difficult. To circumvent this problem, reactions that do not interfere with biology have been developed. These reactions, referred to as bioorthogonal reactions must be …

Development Of Novel High-Throughput Methodologies To Evaluate The Thermal Stability Of High-Temperature Thin-Film Crystals For Energy Applications, Jonathan Kenneth Bunn

Theses and Dissertations

High temperature materials are used in a variety of energy applications such as jet turbines, high temperature sensors, and solid oxide fuel cells (SOFCs). Discovery of new materials and their optimization represents a difficult engineering challenge, as the materials have to be designed to have a high figure of merit during intense high temperature operations.

The large number of engineering considerations involved in the identification and optimization of such materials makes traditional one-by-one material investigations prohibitively time consuming. The time needed to explore large parameter domains can be significantly decreased through the use of high-throughput experimentation (HTE). HTE is an …

High-Throughput Sequencing-Based Approaches For The Identification And Development Of Molecular Targets For Cancer Therapy, David Joel Oliver

Theses and Dissertations

Effective cancer treatment depends on the development of therapeutics that efficiently eliminate the disease without significant reduction to quality of life. Targeted therapeutics achieve these goals, but their long-term efficacy is limited by the ability of cancers to become resistant to these therapies over time. The identification of new therapeutic targets is crucial for the future of cancer treatment. In this work we present functional identification and characterization of novel targets for cancer therapy.

Loss-of-function screens are a well-founded approach for the functional identification of new therapeutic targets, and, in combination with high-throughput sequencing technology, can now be performed at …

Development Of Protein-Polymer Core-Shell Nanoparticles (Ppcs-Nps) As Efficient Vehicles To Deliver Therapeutic Agents Across Blood Brain Barrier (Bbb), Napat Tandikul

Theses and Dissertations

Blood Brain Barrier (BBB) plays a main role as selective barrier which controls and limits access of chemicals, molecules and therapeutic agents from blood to brain. The BBB endothelial cells are connected by Tight Junctions (TJs) which close intracellular spaces between the endothelial cells and block the free diffusion of substances, therefore many potential drugs for treating human brain diseases cannot reach the brain in sufficient concentration. Recently, many studies have thrown an interest in development of nanoparticles for delivering drugs and imaging agents across BBB. Our research group has developed protein-polymer core-shell nanoparticles (PPCS-NPs) which demonstrate great potential for …

Human Neural Progenitor Cells Are Productively Infected By R5-Tropic Hiv-1: Opiate Interactions On Infection And Function Involve Cdk5 Signaling, Joyce Magat Balinang

Theses and Dissertations

Human immunodeficiency virus type 1 (HIV-1) is known to cause a spectrum of neurological, behavioral and motor deficits collectively termed as HIV-1 associated neurocognitive impairments (HAND). Opiates augment HIV-related CNS complications through both direct and indirect mechanisms that disrupt glial and neuronal function. All CNS macroglia and neurons derive from neural progenitor cells (NPCs) during development, and NPCs in the adult brain contribute to repair processes. Since disruptions in NPC function are known to impact CNS populations and brain function in a number of disease/injury conditions, we determined whether HIV ± opiate exposure affected the maturation and fate of human …

Valuing Natural Space And Landscape Fragmentation In Richmond, Va, Lee Wyatt Carpenter

Theses and Dissertations

Hedonic pricing methods and GIS (Geographic Information Systems) were used to evaluate relationships between sale price of single family homes and landscape fragmentation and natural land cover. Spatial regression analyses found that sale prices increase as landscapes become less fragmented and the amount of natural land cover around a home increases. The projected growth in population and employment in the Richmond, Virginia region and subsequent increases in land development and landscape fragmentation presents a challenge to sustaining intact healthy ecosystems in the Richmond region. Spatial regression analyses helped illuminate how land cover patterns influence sale prices and landscape patterns that …