Digital Commons Network^™

Functionalized Bodipy Dyes For Near-Infrared Emission Of Lanthanide Complexes, Rukshani Wickrama Arachchi

Masters Theses

For many decades, fluorophores have been used to investigate natural systems, but autofluorescence and photobleaching diminish the detection capacity. Recently, BODIPY based lanthanide complexes have been synthesized and their photophysical properties have been investigated. These complexes exhibit higher emission efficiencies at NIR region with longer NIR lifetimes upon exciting at longer wavelength.

In this study, two BODIPY based lanthanide complexes were synthesized and their photophysical properties were evaluated. BODIPY based ligands were synthesized with phenanthroline as the ligand binding group. These ligands exhibit strong absorption at 527 nm and 532 nm, fluorescence at 540 nm and 548 nm with 0.55 …

"A Babe In The Woods?": Billy Graham, Anticommunism, And Vietnam, Daniel Alexander Hays

Masters Theses

This thesis focuses on famous evangelist Billy Graham's role in the Vietnam War, both as a public supporter and private advisor. It argues that, contrary to his self-depiction, he was no "babe in the woods," no mere neophyte or bystander. Rather, America's most famous preacher was an active participant in promoting and even planning the war. Graham's evangelical theology, with his premillennialist beliefs, led to his intensely anticommunist worldview, where communism was the Antichrist. His public support buttressed the presidents prior to and during the Vietnam War and, sometimes, Graham even delved into policy recommendations for the war.

Graham's role …

Construct Validity Of The Teate Depression Inventory With A Black African American Sample, Samantha Rushworth

Masters Theses

The purpose of this study was to assess the construct validity of a new measure of depression, the Teate Depression Inventory (TDI), with primary focus on the Black/African American participants. Research has demonstrated that Black/African Americans experience disparity in receiving mental health care for internalizing disorders, partially due to under-detection of symptoms. Detection of internalizing disorders is an important step in receiving appropriate treatment. This research is essential to benefit mental health practices, addressing the need for professionals to be culturally competent and aware of the appropriate assessment tools available. In order to best serve ethnic minorities, validity of measurements …

The Relationship Between Participation In Community Service And Students Academic Success, Kelsi Grubisich

Masters Theses

This study explored the relationship between participation in community service and students' academic success at a mid-sized Midwestern institution. A quantitative study was conducted by distributing a survey through the Civic Engagement and Volunteerism Office listserv. The results from the t-test showed that there was no statistical significance in the participation in community service and students' academic success. Results from the Chi Square test showed that there was no statistical significance in the type of service students chose and their major, the gender participation, and the race participation. Recommendations were made to student affairs professionals to include more opportunities …

An Examination Into The Instruction Of The Alphabet During Preschool Years, Amanda Titus

Masters Theses

Instruction of the letters of the alphabet is a controversial topic among early childhood educators. Not only is it debated whether letter instruction is developmentally appropriate but there is then the discussion concerning how the letters are best taught once a program deems it is developmentally appropriate. In this study, 87 children were assessed at two separate times during the school year to determine a method of instruction that proved most effective. The study took place over three consecutive school years. The first year, 27 students were exposed to alphabetic instruction through a combination of music and mnemonic device assisted …

Export-Oriented Entrepreneurship Intensity And Economic Growth In Developing And Developed Countries, Xueting Sun

Masters Theses

This paper analyzes the impact of export-oriented entrepreneurship intensity on national economic growth using data for 64 countries over the 2006-2013 period. We draw on entrepreneurship, entrepreneurship and economic growth, export-oriented entrepreneurship and economic growth, and export intensity of entrepreneurship and economic growth theories to affirm that export-oriented entrepreneurship and export-oriented entrepreneurship intensity is profound for the national economic growth of countries.

The findings suggest that greater total entrepreneurial activity (TEA) is associated with a higher rate of economic growth in developed countries but not in developing countries. Also, greater export-oriented entrepreneurial activity (EEA) is associated with a higher rate …

An Analysis Of Black Undergraduate Students' Social Activism Through Social Media Usage, Tayla Richards

Masters Theses

Social media has become a tool for college students to engage in social activism. Black undergraduate students is one population that actively utilize social media's impact as illustrated through recent activist movements and demonstrations within university communities. This study sought to explore and analyze the ways that Black undergraduate students utilize social media platforms in general and for activism. The researcher conducted one-on-one interviews with three Black undergraduate students and analyzed their posts on each of their frequently used social media platforms in order to study how their personal narratives were connected to their social media use.

Results showed that …

A Study Of Acoustic Reflections To Determine The Location, Size, Shape, And Orientation Of Reflecting Objects, Brandon M. Heller

Masters Theses

This study was conducted to examine the properties of sound in relation to echolocation, specifically in relation to its use by humans. Through my thesis, objects of varying shape and size were subjected to a sound wave to determine details about the object from the reflected sound. The shapes' comparisons were conducted at varying distances, measuring the intensity of the returning sound wave at several frequencies. The results demonstrated a correlation between the intensity of the sound in regards to distances, area of the reflector, and the shape of the reflector.

Resilience And Thriving In Homeless College Students, Cayla C. Maurer

Masters Theses

Homeless college students face many obstacles in higher education. These students are the invisible population on campuses that are sometimes forgotten. Despite facing many challenges and barriers, these students continue to pursue a degree of higher education. The purpose of this study was to understand the experiences and obstacles homeless college students face while they word toward a degree. Understanding how successful homeless college students overcome barriers and utilize resources will provide information that may change the fate of future homeless college students. A phenomenological approach was utilized to explore the qualities and characterizes that allow homeless college students to …

Analyzing Source Preferences In Student Writing When Integrating Diverse Texts, Lauren Covington

Masters Theses

This study examined the sources cited by sixth grade who had been exposed to multiple sources pertaining to a historical topic. The purpose of this study was to determine whether students exhibited a preference for specific types of sources when constructing and demonstrating knowledge about historic events, figures, or a specific time period. A total of 46 students participated in the study which extended over eight class periods of approximately 50 minutes each. During these class periods students constructed knowledge about historical figure, Rosa Parks, and the events of the Montgomery Bus Boycott. Students were presented with a variety of …

Examining The Effects Of Student-Centered, Project Based Teaching On Students With And Without Special Needs In An Elementary General Music Classroom, Charity J. Ozier

Masters Theses

The purpose of this action research is to study the effects of student-centered learning as compared to teacher-led instruction in an elementary general music classroom. This research study is framed by the conjunction of the lenses of sociology, specifically constructivism, in a music classroom with special learners. Students in fifth and sixth grade general music classes study the musical concepts of composition and reading notation in one of two manners. One group of students is instructed in a traditional format of teacher-led lectures and discussions, with guided practice following. The other group is instructed using a student-centered approach, in which …

Natural Resources, Institutions, And Poverty: The Case Of The Mena Region, Abdulrhman M. Alamoudi

Masters Theses

While several Middle East and North Africa countries have a huge endowment of natural resources such as oil and natural gas, poverty indicators, as expressed by well-being indicators and headcount, are no better in these countries than others that are relatively poor in natural resources. For instance, oil rich countries, such as Syria and Sudan, have a lower life expectancy and school enrollment than poor-resources countries like Lebanon and Israel. This study thereby, investigates the cross-country differences of poverty response to changes in natural resources wealth. The paper utilizes a panel data model for the period from 1985 to 2014 …

A Monstrous Tomorrow, Ty Noel

Masters Theses

No abstract provided.

Framing Gun Violence: Agenda-Setting On Nbc's Meet The Press, Daniel A. Douglas

Masters Theses

Through the use of framing theory as described by Entman (1993), this thesis examines the National Rifle Association's framing of the gun violence debate as established, maintained, and shaped by their vice president, Wayne LaPierre on three separate episodes of Meet the Press, which occurred on December 23rd, 2012; March 24th, 2013; and September 22nd, 2013. This work offers a thematic analysis that investigates several themes that emerge in the three individual interviews with LaPierre that are done by David Gregory on the program. Those themes are then analyzed through the lens of the four purposes of framing that …

Evaluating Student Responses To Young Adult Literature Based On Group Dynamic Within The Literature Circle Setting, Abigail J. Schmitz

Masters Theses

The push of the Social and Emotional Learning (SEL) standards encourages teachers to assist students with overcoming personal obstacles in the classroom. In the middle grades, young adult literature can be an outlet for students by allowing them to connect with characters similar to themselves and their life experiences. Within the middle level classroom, literature circles can address SEL needs and state standards while allowing students to work closely with their peers sharing in a discussion format in response to the same young adult novel. This research analyzed two groups of students and their oral and written responses to the …

The North American River Otter (Lontra Canadensis) On The Department Of Energy's Savannah River Site, Emily B. Mccallen

Masters Theses

The Department of Energy's (DOE) Savannah River Site (SRS) faces a legacy of radionuclide and metal contamination from industrial processes that occurred within the site. The risks posed to ecosystems on the site from contaminants are quantified using the ecological risk assessment process, which often uses the health of a particular species as an ecological endpoint. Northern river otters (Lontra canadensis) are appropriate receptors for studying the effects of long-term, low-level contamination because they are long-lived, higher trophic level organisms likely to accumulate high levels of pollutants. However, little information about river otters on the SRS is known; …

Psi Performance, Belief In Psi, And Competition In A Game-Show Format, Heather L. Warner-Angel

Masters Theses

The current study was designed to explore variables influencing psi performance including gender, belief in psi, and competition between men and women. Features of the experiment involved a methodology using a visual image of the receivers, simple spatial location as targets, and monetary incentive to increase competition in a game-show type of environment. One of the goals of this study was to explore the role of competition between groups of senders and receivers as a facilitator of telepathic communication. Results of a one sample t-test comparing overall hit rate for the sample with expected probability were not significant, t(98)= …

Nutritious Meals For The Homeless Population: Challenges And Opportunities, Kayla A. Albrecht

Masters Theses

Objective: Consuming a nutritionally adequate diet is extremely challenging for the homeless population. Though meals are available to the homeless population through soup kitchens and homeless shelters, these settings often do not serve meals that provide essential nutrients. The consumption of energy-dense, low-nutrient foods has led in part to high prevalence of obesity, heart disease, and chronic illnesses among the homeless. The purpose of this study was to (a) examine the challenges that homeless shelters face in providing nutritious meals to guests and (b) investigate the need and interest of nutrition education at homeless shelters.

Methods: Nine homeless shelter directors …

Trade Openness, Foreign Direct Investment And Infrastructure Spending: A Comparative Analysis Of Their Common Role In The Economic Development Between Selected Developed And Developing Economies, Yasser M. Alwafi

Masters Theses

This study examines the literature on how trade, foreign direct investments, and infrastructure development affect economic growth of selected developed and developing economies. A comparative analysis will be carried between developed economies (G7 countries) represented by Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States while the developing economies (BRICS countries) are represented by Brazil, Russia, India, China and South Africa. The comparative analysis will be carried between years 1985 to 2015. In addition, the paper will establish the relationship between trade and economic growth in both developing and developed economies. Furthermore, the paper will establish that …

Determinants Of Import Demand In Ghana: 1960-2014, Freda Opoku-Agyemang

Masters Theses

This paper assesses the determinants of demand for import in Ghana using variables imports, exports, real gross domestic product, government spending, capital formation and exchange rate. The central aim of the study is to examine the relationship of Ghana's aggregate import demand and its determinants and then analyze the data from the period 1960 to 2014 and based on the above objectives, propose policies based on the results obtained from the analysis. All the data used were obtained from the World Bank database. The Johansen co-integration test suggested that there exists a long-run relationship between the imports (i.e. the dependent …

Synthesis And Characterization Of Cu(Ii)-Cu(I) Mixed Valence Complexes, Hansani T. Lekam Wasam Liyanage

Masters Theses

Our study was focused on synthesis and characterization of new family of metal complexes that mimic the active site of copper containing enzymes. Our approach focused on preparing a series of metalloligands which vary systematically in structure and use them in combination with additional metallic centers to synthesize our desired complexes.

We synthesized a main ligand, which is named as HL^Q 2Pz, which contain a quinoline body, one amide bond and two pyrazolyl rings. We synthesized a copper complex by deprotonating HL^Q 2Pz using KOH. The ligand coordinated to the copper(II) center through its quinoline nitrogen, two of …

Christ's Consequentialism In Light Of Abelard And Mill, John Witt

Masters Theses

An exegetical investigation of the ethical teachings of Christ seen throughout the Gospel accounts. Christ's consequentialist teachings are further clarified by investigating the works of Peter Abelard and John Stuart Mill. Brief reviews of modern consequentialists and utilitarians are given, and finally a cumulative formulation of a working Christian utilitarian ethic is formulated.

In Situ Ph Determination Based On The Nmr Analysis Of ¹H-Nmr Signal Intensities And ¹⁹F-Nmr Chemical Shifts, Ming Huang

Masters Theses

"The pH of an NMR sample can be measured directly by NMR experiments of signal intensities, chemical shifts, or relaxation time constants that depend on the pH. The ¹H NMR peak intensities of the pH indicator phenolphthalein change as it changes from the OH-depleted form to the OH-rich form in the range of pH = 11.1 to 12.7. Because this range is rather small, another NMR technique was utilized based on ¹⁹F chemical shifts. The shift of F^- in an aqueous solution of NaF changes in the alkaline range between pH = 11.0 and 14.0 and even …

Predicting The Impact Of Data Corruption On The Operation Of Cyber-Physical Systems, Erik David Burgdorf

Masters Theses

"Cyber-physical systems, where computing and communication are used to fortify and streamline the operation of a physical infrastructure, now comprise the foundation of much of modern critical infrastructure. These systems are typically large in scale and highly interconnected, and span application domains from power and water distribution to autonomous vehicle control and collaborative robotics. Intelligent decision support in these systems is heavily reliant on the availability of sufficient and sufficiently correct data. Failure or malfunction of these systems can have devastating consequences in terms of public safety, financial losses, or both.

The research described in this thesis aims to predict …

Error Mapping Of Build Volume In Selective Laser Melting, Ninad Kulkarni

Masters Theses

“Selective laser melting is one of the commonly used additive manufacturing processes employed for production of functional part. Therefore, quality aspects such as dimensional accuracy have become a point of great interest. Like all of the other additive manufacturing processes selective laser melting process suffers from the issue if having wide range of process parameters making the process control a complex task. Additionally, issues specific to the selective laser melting process such as position dependency of accuracy of the part, makes it difficult to predict the resulting dimensional inconsistencies in the part manufactured by this processes. This research is an …

Evaluation Of Preformed Particle Gels Penetration And Propagation Behavior For A Conformance Control Treatment In Partially Open Conduits, Ahmed Mohamed Aldalfag

Masters Theses

"Preformed particle gels (PPGs) serve as a conformance control agent and have been used widely to control excess water production through conduits, fractures or fracture-like features. This research ranks the parameters that impact PPG resistance to water flow in partially opened conduits. Experiments were conducted to examine the effect of brine concentration, PPG injection pressure, back pressure, reducing water salinity and matrix permeability on PPG resistance to water flow through conduits, PPG penetration to the matrix. PPGs were swelled in different concentration brines and were injected into the conduits at a few designed injection pressures. PPG swollen in high brine …

Cloth-Air Partitioning Of Oxybenzone, Jonathan T. Hill

Masters Theses

"Clothing has been proven to be a significant accumulator of chemicals from the air. Semi-volatile organic compounds (SVOCs) have a high affinity towards textiles, and measuring the equilibrium partition coefficient between cloth and air (K_cloth-air) for SVOCs is crucial in predicting human exposure to these compounds. This study aims to quantify K_cloth-air for oxybenzone to contribute to a larger human exposure experiment carried out at the Technical University of Denmark (DTU). K_cloth-air for oxybenzone was calculated using data collected from the exposure chamber at DTU and from performing extractions of oxybenzone in fabric samples from the …

Extending Time Series Forecasting Methods Using Functional Principal Components Analysis, Isaac Michael Wagner-Muns

Masters Theses

"Traffic volume forecasts are used by many transportation analysis and management systems to better characterize and react to fluctuating traffic patterns. Most current forecasting methods do not take advantage of the underlying functional characteristics of the time series to make predictions. This paper presents a methodology that uses Functional Principal Components Analysis (FPCA) to create smooth and differentiable daily traffic forecasts. The methodology is validated with a data set of 1,813 days of 15 minute aggregated traffic volume time series. Both the FPCA based forecasts and the associated prediction intervals outperform traditional Seasonal Autoregressive Integrated Moving Average (SARIMA) based methods"--Abstract, …

Dc-Dc Converter Based Photovoltaic Simulator With A Double Current Mode Controller, Weichao Zhang

Masters Theses

"This thesis presents the performance of a DC-DC converter based with current mode controller photovoltaic (PV) simulator which emulates the output characteristics of a real PV module. A portable PV simulator prototype of 85 W is examined in terms of its steady state IV curve matching capacity and the convergence time corresponding to step change in current source load, voltage source load, and insolation levels. The current-voltage (IV) characteristics of the PV module are implemented as a look-up-table (LUT) which determines the reference output current from measured output voltage. A Thevenin Equivalent Method approach to PV arrays analysis is also …

Nuclei Segmentation Using Level Set Method And Data Fusion For The Cin Classification, Ravali Edulapuram

Masters Theses

"This paper deals with the automation of the detection of the cervical cancer through histology images. This process is divided into two parts, corresponding to segmentation and data fusion. The segmentation and classification of the cervical epithelium images is done using hybrid image processing techniques. The digitized histology images provided have a pre-cervical cancer condition called cervical intraepithelial neoplasia (CIN) by expert pathologists. Previously, image analysis studies focused on nuclei-level features to classify the epithelium into the CIN grades. The current study focuses on nuclei segmentation based on the level set segmentation and fuzzy c-means clustering methods. Morphological post-processing operations …