Digital Commons Network^™

Exploring Actual Social Support Using The Social Convoy Model To Assess The Impact On Depression In Adolescents, Chris Hansen

Masters Theses

The current study set out to better understand the differences between availability of support and received support and explore the relation between social support and depression in late adolescents. One hundred and forty participants were recruited from a northwest suburb high school and a college from the eastern central part of Illinois. A social network was formed for each participant using a mapping technique from the Social Convoy Model. The received support measure, the UCLA Social Support Inventory, was used to assess the amount of received support participants identified from their social network. Participants completed the Late Adolescent Social Support …

Effects Of Emerging Contaminants On Centrarchidae And Catostomidae In Midwestern Rivers: A Multiple Biomarker Approach, Camden Garret Nix

Masters Theses

Natural habitats of fish are gradually declining due to land use and pollution caused by industrial wastes, intensive agriculture and contamination from sewage systems. The United States has 14,780 wastewater treatment facilities that discharge effluent into navigable waters, and in some cases these discharge waters represent a considerable proportion of the water system flow. These activities make it critical to discern the effects of pollutants that are entering our waterways at a consistent rate, such as 17β-estradiol (E2) and nickel, on aquatic organisms. To determine the effects of 17β-estradiol on endocrine disruption in fish, Bluegill Sunfish (Lepomis macrochirus) …

Effects Of Wastewater Effluent On Fish Fin Morphology Of Larval Fathead Minnows (Pimephales Promelas) And Swimming Performance Of Smallmouth Buffalo (Ictiobus Bubalus), Seth Michael Bogue

Masters Theses

The Sangamon River flows across central Illinois and is mostly free flowing except in the city of Decatur where it is impounded to form Lake Decatur. The Sanitary District of Decatur (SDD) is located approximately three miles downstream of the Lake Decatur dam. For a significant portion of the year, the stretch of the Sangamon River downstream of SDD is dominated by effluent due to limited discharge from the Lake Decatur dam. This has resulted in heavy nutrient loading, most notably phosphorus, and elevated levels of nickel and other compounds in the downstream section of the river. Smallmouth buffalo ( …

“Yes, My Career Would End”: How The Existence Of Illicit Digital Media May Inhibit Women From Participating In Politics, Esther Afrakoma Appiah Dwaah

Masters Theses

The challenges faced by women in their quest to be equal participants with men in politics is not hidden. This study set out to examine how women may be restrained from rising to the highest offices in politics amidst fear of their existing nude contents that exist digitally. The body and sexuality of women have countlessly been employed as a tool to keep them out of political participation. Relying on data gathered through interviews with twenty four respondents, the study confirmed that women who have their illicit digital media in existence are less likely to take lead roles in politics …

An Empirical Analysis Of Poverty And Income Inequality In U.S. Southeastern States, Maria Del Carmen Tellez

Masters Theses

This paper analyzes the impacts of education achievement, percentage of households led by a single parent, the percentage of minority population, per capita personal income, percentage of population over 65 years old, and minimum wage on income inequality in 9 southeastern states of the United States, as well as the effects of these variables on poverty, measured as the percentage of the population below poverty level. These southeastern states are Alabama, Arkansas, Georgia, Florida, Louisiana, Mississippi, Oklahoma, Tennessee, and South Carolina. The period of time used for this analysis is from 2000 to 2019. Panel data was used for this …

Genetic Relatedness Can Alter The Strength Of Plant-Soil Feedbacks, Kelly M. Clark

Masters Theses

Intraspecific variation may play a key role in understanding the relationships between plants and their interactions with soil microbial communities. The effects that soil-microbes have on individuals can venerate variation across individuals in their responsiveness. I explored how relatedness alters plant-soil feedbacks in established Solidago altissima clones grown in a common garden. Seedlings of known parentage were inoculated with soils from the maternal, paternal, or unrelated clones and compared to autoclaved control inocula. I found that the soil inocula generated from S. altissima had an overall negative effect of seedling biomass. Furthermore, seedlings inoculated with maternal or paternal soils experienced …

Synthesis And Characterization Of A Two Station Starburst Pseudorotaxane, Janaka Prasad Kaviraj Kavikarage

Masters Theses

Mechanically interlocked molecules (MIMs) are arranged with mechanical bonds. These molecules cannot be separated without breaking the required covalent bonds. There are different kinds of MIMs, such as rotaxanes, catenanes, suitanes, borromean rings, and molecular knots. These MIMs are stabilized by non-covalent interactions such as hydrogen bonds, π-π stacking, and ion-dipole interactions. Dialkylammonium ions, bis(pyridinium)ethane dications, viologen species, and naphthalene diimide π-deficient groups are typical examples of recognition motifs for crown ethers.

In the research described here, we synthesized a new axle, based on a combination of benzobis(imidazolium) (BBI) and viologen species. The axle contains two recognition sites: one is …

Is The Customer Always Right? An Exploration Into The Expectations Of Student Affairs Professionals, Brittany Floyd

Masters Theses

The purpose of this study is to gain perspective of how student affairs professionals are managing the changing dynamic of the student. The researcher sought to explore how student affairs professionals cope with the expectation that the “customer is always right” while encouraging students’ development. It was found that student affairs professionals share a common goal to assist and serve students, but administration, parents, and students have clear expectations as to how they do so. It was found that the customer service mantra “the customer is always right” does exist on a college campus, and it comes with a cost. …

The Relationship Between Relative Muscular Strength And Joint Mobility In Firefighters, Samuel C. Nozicka

Masters Theses

Firefighters job requirements consist of running upstairs, climbing ladders, ceiling breach and pull, carrying equipment, forcible entry, dragging hoses, raising ladders, and rescue of patrons all while wearing heavy protective equipment that limits their mobility (Park et al., 2015). The purpose of this study was to examine the relationship between relative strength and mobility within the population of firefighters. The subjects were volunteers consisting of twelve male firefighter ranging in age from 25-52 with the mean age of 37.7 ± 7.7 years. Leighton Flexometer was used to measure joint range of motion (ROM) in different active movement patterns (Leighton, 1966). …

The Impact Of The Therapeutic Relationship On Transgender Clients’ Perceptions Of Their Therapist, Aaron Brockie

Masters Theses

The purpose of this study was to explore the relationship between therapist practices, the therapeutic relationship and their impact on how transgender clients feel about their therapist. Previous research on therapist practices and the therapeutic relationship has looked into how these variables influence lesbian, gay, and bisexual clients’ feelings about their therapist, but as of yet, the dynamic has not been analyzed for transgender clients. Given the disproportionate prevalence for severe mental health issues in the transgender community, it is urgent that barriers to adequate and meaningful therapy outcomes be identified and addressed. Seventy eight participants were recruited from social …

The Acute Impact Of Stair Climbing On Vertical Jump Height, Matthew Grossman

Masters Theses

Vertical jump (VJ) is a strong determinant of explosive power in the trained and untrained population. There is agreement among the literature that vertical jump training can be improved through progression in specific training related to vertical jump. For example, plyometrics is a widely studied training method for increasing VJ, and has been generally accepted method for increasing VJ. Within the literature, training methods are continually being studied to improve athletic performance. Exploration of improvements outside of resistance training can provide further insight on enchancing athletic performance. The present study examined the acute impact of stair climbing (SC) on VJ. …

Day Trips, Life In Camp, And Dogs: An Alaskan Memoir, Karen Reed

Masters Theses

Day Trips, Life in Camp, and Dogs: An Alaskan Memoir is a collection of essays reflecting the narrators immersion in life above the Arctic Circle.

A Novel Palladium Bodipy Photocatalyst For Sonogashira Carbon-Carbon Cross-Coupling, Prahadeesh Nagaretnam

Masters Theses

No abstract provided.

How Do I Do This? How Universities Support Students Experiencing Grief, Jackie Hirn

Masters Theses

Grief prompts college students to ask, “how do I do this?” in many ways. This phenomenological study examined the ways in which student affairs professionals supported grieving students from four universities across the United States. It was found that grieving college students faced many challenges and barriers, including academic, emotional, financial and legal, and cultural issues. Grief is an individualized process that manifests differently in each student. To ensure student success, it was found that resource referral was vital for students, and that connections between departments were imperative to make those referrals happen. This study notes that the COVID-19 pandemic …

The Effects Of Imf's Lending And Conditionalities On Economic Growth: Case Of Sadc Countries, Lutete Celina Carlos

Masters Theses

I examine the impact of IMF credit use and its conditions on economic growth performance in 12 South African countries over a period of 1999-2019. The work adopts an empirical and quantitative approach to analyzing the relationship between the GDP per Capita, the use of IMF Credit, Government Final Consumption Expenditure, Net Domestic Credit and Current Account balance. These variables are the most recommended in the IMF conditionalities during the lending arrangements with SADC members. The study uses Fixed-effect approach to evaluate how the use of IMF program and the conditions imposed directly affects economic growth. A dummy variable is …

Scientific Development Vs. Political Strategy: Nasa’S Commitment To Science Following The First Moon Landing, Sean Van Buskirk

Masters Theses

This work looks at the scientific program of NASA during the Space Race. (1961- 1975) During this period of the Cold War, NASA shifted it role from a political asset of the United States strategy to an agency of scientific discovery. This was not a smooth transition due to political opinions on the wastefulness and role of NASA. Many politicians, citizens and even scientists had doubts about the scientific potential of NASA’s manned missions to the Moon. Despite the power politics, the administrators at NASA were able to break out of the political arena and create a balanced program where …

Using Science, Technology, Engineering, And Mathematics (Stem) Activities To Narrow The Achievement Gaps In East Central Illinois, Kiyla Devoss

Masters Theses

STEM has become a growing topic in recent years. STEM stands for Science, Technology, Engineering, and Math. There is a strong emphasis on improving and expanding STEM education to meet the demands of our STEM-focused society. To fill this need afterschool programs have emerged as key partners in STEM education to provide inspirational STEM enrichment opportunities. The study aims to explore if STEM activities narrow the achievement gap of participants from low socio-economic status (SES) in East Central Illinois. The study used a grade level ready framework to define the concept of narrowing the achievement gap and lowering the percentage …

Synthesis, Characterization And Photophysical Properties Of Ytterbium Complexes Of Functionalized Porphyrins And Porpholactone, Beibei Liu

Masters Theses

The unique structure and superior properties of lanthanide porphyrins enable them to be used in a broad variety of applications, especially in medical diagnosis fields. This research focuses on modifying the porphyrin ligands in various places, resulting in broader absorption in the red region and strong emission in the near-infrared region for these ytterbium(III) porphyrin complexes. The design, synthesis and characterization for DMPH₂-BDP, DMPH₂-COOH, TPLH₂ ligands and YbDMP-BDP, YbDMP-COOH complexes are described. The photophysical properties of these ligands and complexes including their absorbance, fluorescence and quantum yields are also presented. Both the synthesized ligands and …

The Gene Expression Patterns Of Phanerochaete Chrysosporium And Trametes Versicolor On Diverse Lignocellulosic Feedstocks, Noor Osama Alabbasi

Masters Theses

Plant biomass is considered to be an important future starting material for fuels and chemicals, thereby decreasing our reliance on fossil fuels. While direct combustion continues to be a source of fuel, the generation of liquid fuels from plant biomass for transportation has proven to be challenging. Among the limiting factors for conversion of this material to biofuels is the recalcitrant nature of lignocellulose, the primary component of non-starch plant biomass. A strategy to overcome this dilemma is to directly or indirectly use the enzymes from white-rot fungi, which have evolved a unique ability to deconstruct lignocellulose. However, the biochemical …

Agent-Based Model Of Broadband Adoption In Unserved And Underserved Areas, Ankit Agarwal

Masters Theses

"In the last two decades, demand for broadband internet has far outpaced its availability. The Federal Communications Commission’s (FCC) 2020 Broadband Deployment report suggests that at least 22 million Americans living in rural areas lack access to broadband internet. With the COVID-19 pandemic affecting normal life, there is an overwhelming need to enable unserved and underserved communities to adapt to the “new normal”. To address this challenge, federal and state agencies are funding internet service providers (ISPs) to deploy infrastructure in rural communities. However, policymakers and ISPs need open-source tools to predict take-rates of broadband service and formulate effective strategies …

Investigation Of Post-Acid Stimulation Impacts On Well Performance Using Fracture Modeling And Reservoir Simulation In A Jurassic Carbonate Reservoir, Muaath Alansari

Masters Theses

"Well stimulation (well fracturing) became an essential tool in the Oil and Gas industry to unlock the potential of unconventional reservoirs all over the world and especially in the Middle East. In Kuwait, well stimulation is obligatory when dealing with deep Jurassic carbonate reservoirs. Thus, the well fracture designing process plays a very critical role in determining the success of the stimulation job and the improvement of the recovery.

Several wells stimulated with 20% HCL have shown wide variations in both short and long term well production performance. The research aims to investigate and identify the possible reasons causing these …

Power Generation From Waste Heat During Oil Production, Subrahmanya Chandra Bhamidipati

Masters Theses

"The increase in the world population is causing a significant increase in the global demand for energy. This rise in demand is generally met with the use of fossil fuels. But there is considerable pressure to lessen the release of carbon through the combustion of fossil fuels. One way that the oil and gas industry can provide increased energy without carbon combustion is by extracting the latent heat energy contained in produced oil, gas and water from producing reservoirs, and from water which is cycled through depleted, end-of-life or abandoned reservoirs. Extracting this energy and using it to provide direct …

Mechanical Activation And Cation Site Disorder Of Spinel-Based Ceramics, Cole A. Corlett

Masters Theses

"This research focuses on the processing and the effects that has on the cation disorder of magnesium-aluminate spinel based (MgAl₂O₄) ceramics. The first goal of this project was to determine the effects of high-energy milling, i.e., mechanical activation, on cation disorder (inversion) within the spinel structure. First, 1:1 molar ratios of MgO:Al₂O₃ ceramics were processed using two green processing methods, ball milling (XD) and SPEX milling (mechanical activation, MA) followed by a subsequent annealing treatment in air to form a single spinel phase in each powder sample. Neutron diffraction analysis was employed to …

The Field Coupling Mechanism Study For Near Field Probe, Shun Liu

Masters Theses

"In this part, the radius of the loop is used to predict the voltage induced by the E- field in the circular loop antenna. The thin rectangle loop and thick rectangle loop have been investigated. The equivalent radius of the rectangle loop is estimated by the average of the one over the distance between the points on the loop to the center of the loop. The estimation matches with the numerical simulation"--Abstract, page iv.

Spatiotemporal Observations Of Water Stress In Kansas Winter Wheat And Corn From Remotely Sensed Evapotranspiration And Ndwi, Lindi Diane Oyler

Masters Theses

"Optimizing water use is a growing concern, especially in agricultural communities where water use is high. An important challenge in agricultural water optimization is knowing when and where crop water stress is occurring, particularly on large scales where in-situ measurements are no longer practical to obtain. In an effort to combat this challenge, this study utilizes remotely sensed evapotranspiration (ET) and Normalized Difference Water Index (NDWI) to evaluate the responses of integrated satellite datasets to water-stressed conditions over fields of irrigated corn, irrigated winter wheat, and rainfed winter wheat from 2007 to 2017 in southwestern Kansas. Using two different ET …

Toward Understanding Commercial Additives For Zincate Electrogalvanizing, Margaret Scott

Masters Theses

"Cyanide zinc electrogalvanizing has been used for many years to produce high quality and uniform zinc coatings. Due to toxicity concerns, a significant amount of research has occurred to remove the use of cyanide while still producing a similar deposit. One of the resulting plating chemistries is the alkaline zincate bath.

Alkaline zincate plating has the advantages of low startup cost, low toxicity, and low corrosion rate. Despite these advantages, alkaline bath conditions do not produce acceptable zinc deposits without the use of plating additives, which can promote lustrous, smooth deposits. This research aims to: (1) generate fundamental electrochemical data …

The Role Of Psychological Reactance In Smart Home Energy Management Systems, Matthew Thomas Heatherly

Masters Theses

“With an ever-growing demand for energy, our increasing consumption is producing more greenhouse gases and other pollutants, impacting climate change. One approach to reducing residential energy consumption is through the use of smart energy management systems. However, automation from smart technology inherently removes a certain amount of control from the user. If loss of control is perceived as a loss of freedom, this may lead users to experience psychological reactance when using these products. A set of experiments was conducted to assess how three features of a message notification from smart home energy management systems may induce reactance in users. …

Development Of Complex Lattice Cell In Benchmark Model Of Particle Bed Critical System, Elijah Chamberlain Lutz

Masters Theses

“Criticality safety benchmark evaluations require the creation of models that most accurately represent the experiment being evaluated. In some cases this can be relatively trivial with experiments containing rather simple or standard geometry. In others, such as packed bed systems, this becomes unique and a more difficult process. The importance of accurate modeling of packed bed systems for the use of criticality safety benchmark evaluations was looked at. Four models were created of various complexities and accuracy. First the multi-particle bed, consisting of a fuel particle (UC_1.7 kernel with C shell) and two filler particles (Zircaloy-4 and C + …

Multiple Generations Of Phlogopite In An Alnöite Diatreme: Insights Into The Petrogenesis Of The Avon Alkaline Igneous Province, Missouri, Nathan Gregory Limbaugh

Masters Theses

“Alkaline Ultramafic Carbonatite (AUC) complexes, although rare, are valued for diamonds and REEs, and as windows into subcontinental and mantle processes as recorded by rock fabrics, mineral spatial relationships, and mineral compositions. We report specifically on olivine and phlogopite petrographic relationships and compositions from the Devonian alnoite diatreme-facies of the Avon Alkaline Igneous Province, Missouri. The diatreme alnoite is a mixture of domains of olivine magmaclasts (OM) set in a crystal-rich melilite matrix. OM are highly fractured, serpentinized olivine pseudomorphs with variable amounts of pristine olivine fragments. Larger olivine domains typically exhibit clear crystal faces and irregular “channels” indicative of …

Investigation Of The Sensitivity Of Human Arm To Small Interaction Forces During Physical Human-Robot Interaction (Phri), Fazlur Rashid

Masters Theses

“Understanding the human motor control strategy during physical interaction tasks is crucial for developing future robots for physical human-robot interaction (pHRI). Effective pHRI depends on humans communicating their intentions for movement with robots. In physical human-human interaction (pHHI), small interaction forces are known to convey their intent between the partners. It is speculated that small interaction forces contain significant information to convey the movement intention of pHHI. However, the mechanism underlying this interaction strategy is largely unknown. Hence, the aim of this work was to investigate what affects humans’ sensitivity to the interaction forces. The hypothesis was that small interaction …