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Exploring African American Students’ Perceptions Of Belonging At An Urban Community College In The Western United States, Sylinda Nicole Gordon Musaindapo

Graduate Research Theses & Dissertations

African American students’ perceptions of belonging impact their experiences on community college campuses and in their local communities. This research study explores the impact of gentrification on a group of resilient African American college students in an urban community college located in the western region of the United States. Participants used negative experiences with onlyness and otherness as opportunities to build community for other African Americans.

Cohens On The Move: Jewish Residential Dynamics In Cincinnati, Ohio, 1940-2000, Carmi J. Neiger

Graduate Research Theses & Dissertations

In the 1960s and 1970s, as many large US cities experienced rapid racial and ethnic demographic shifts, the intra-urban residential settlement and migration patterns of American Jews came to the attention of sociologists and urbanists. Although the interest in this population has waned in favor of more recent immigrant groups, patterns of Jewish residential dynamics continue to evolve, reflecting changes over time in both Jewish religious and ethnic identity and assimilation into mainstream American society. The lack of Census data identifying households by religious affiliation requires an alternative approach to the study of this group. In the first section of …

Hydrogen, Carbon, And Oxygen Isotopes In Prosopis Sp. Trees: A New Climate Proxy For Holocene Paleoclimate In The Atacama Desert, Chile, Elizabeth Joy Olson

Graduate Research Theses & Dissertations

The spatial ubiquity of trees in terrestrial ecosystems worldwide facilitates the use of stable isotope research in tree-rings to address a wide-range of interdisciplinary questions related to climate, ecology, archaeology, and hydrology. This dissertation focuses on the development and application of Prosopis tamarugo tree-ring stable isotope records as a paleoclimate proxy for the Atacama Desert, Chile. Current paleoclimate proxies from this region lack the spatial and temporal resolution to quantify a causal mechanism for observed Holocene hydroclimate variability. P. tamarugo tree-ring isotopes provide a high-resolution proxy that facilitates the reconstruction of hydroclimate variability at a regional scale. In order to …

Modulation Of Autophagy In Gbm Cells By Clinical Doses Of Gamma Radiation, Devron Ozgen

Graduate Research Theses & Dissertations

Glioblastoma (GBM) is a highly aggressive cancer that forms from the astrocytes of the brain. Poor prognosis and rather unsuccessful treatment regimens have left researchers and patients looking for new therapeutic strategies to combat this dreadful disease. Following tumor resection and radiotherapy combined with temozolomide, survival only remains around 15 months. Recurrence is very commonly seen, and urgently needs to be further understood. Autophagy is an important mechanism within cancer cells, which allows for cellular organelle/amino acid recycling and thus contributes to energy metabolism. Autophagy machinery has been shown to control cell death within cancer cells, leading to our interest …

Does Infant Negative Affect Moderate The Impact Of Parenting On Effortful Control? A Test Of The Differential Susceptibility Hypothesis, Anton Petrenko

Graduate Research Theses & Dissertations

Parenting and early temperament characteristics have previously been shown to impact development of children’s self-regulation, which is in turn linked to a variety of developmental outcomes. However, few studies have evaluated interactions between difficult temperament and parenting, and only four published studies have specifically tested whether infants’ difficult temperament serves as a maker of differential susceptibility to parenting on self-regulatory development. The current study evaluated whether infant negative affectivity (NA) serves as a marker of differential susceptibility to positive and negative parenting on levels of effortful control (EC) at 18 months, which is at an earlier time point than has …

Implementation Of Systems-Level Learning In A Community College Mechatronics Program, Margie N. Porter

Graduate Research Theses & Dissertations

This is a qualitative case study of the complete implementation of systems-level learning (SLL) pedagogy throughout a mechatronics engineering department in a community college in the United States. SLL was developed from the German engineering apprenticeship model, resulting in engineering graduates with what our German counterparts call Handlungskompetenz. Graduates of these programs have the flexibility to quickly adapt to new engineering systems and situations in a self-directed way without months of on-the-job training. This skill is related to adaptive expertise and is not the type of skill traditionally taught to engineering students.

Chronological and descriptive analyses were performed on semi-structured …

Understanding Carbohydrate Recognition Mechanisms In Non-Catalytic Proteins Through Molecular Simulations, Abhishek A. Kognole

Theses and Dissertations--Chemical and Materials Engineering

Non-catalytic protein-carbohydrate interactions are an essential element of various biological events. This dissertation presents the work on understanding carbohydrate recognition mechanisms and their physical significance in two groups of non-catalytic proteins, also called lectins, which play key roles in major applications such as cellulosic biofuel production and drug delivery pathways. A computational approach using molecular modeling, molecular dynamic simulations and free energy calculations was used to study molecular-level protein-carbohydrate and protein-protein interactions. Various microorganisms like bacteria and fungi secret multi-modular enzymes to deconstruct cellulosic biomass into fermentable sugars. The carbohydrate binding modules (CBM) are non-catalytic domains of such enzymes that …

Application Of Process Systems Engineering Tools And Methods To Fermentation-Based Biorefineries, Kwabena Darkwah

Theses and Dissertations--Chemical and Materials Engineering

Biofuels produced from lignocellulosic biomass via the fermentation platform are sustainable energy alternatives to fossil fuels. Process Systems Engineering (PSE) uses computer-based tools and methods to design, simulate and optimize processes. Application of PSE tools to the design of economic biorefinery processes requires the development of simulation approaches that can be integrated with existing, mature PSE tools used to optimize traditional refineries, such as Aspen Plus. Current unit operation models lack the ability to describe unsteady state fermentation processes, link unsteady state fermentation with in situ separations, and optimize these processes for competing factors (e.g., yield and productivity). This work …

Design And Analysis Of Curcumin Conjugated Poly(Beta-Amino Ester) Networks For Controlled Release In Oxidative Stress Environments, Carolyn T. Jordan

Theses and Dissertations--Chemical and Materials Engineering

Oxidative stress, the imbalance of free radical generation with antioxidant defenses, leads to cellular inflammation, apoptosis and cell death. This compromised environment results in debilitating diseases, such as oral mucositis (OM), atherosclerosis, and ischemia/reperfusion injury. Antioxidant therapeutics has been a proposed strategy to ameliorate these imbalances and maintain homeostatic environments. However, the success of these approaches, specifically curcumin, has been limited due to characteristics such as hydrophobicity and high reactivity when released as bolus doses to contest to oxidative stress induced diseases. The development of a controlled release system to aid in protection of the antioxidant capacity of curcumin, as …

The Development Of Microfluidic Devices For The Production Of Safe And Effective Non-Viral Gene Delivery Vectors, Jason Matthew Absher

Theses and Dissertations--Chemical and Materials Engineering

Including inherited genetic diseases, like lipoprotein lipase deficiency, and acquired diseases, such as cancer and HIV, gene therapy has the potential to treat or cure afflicted people by driving an affected cell to produce a therapeutic protein. Using primarily viral vectors, gene therapies are involved in a number of ongoing clinical trials and have already been approved by multiple international regulatory drug administrations for several diseases. However, viral vectors suffer from serious disadvantages including poor transduction of many cell types, immunogenicity, direct tissue toxicity and lack of targetability. Non-viral polymeric gene delivery vectors (polyplexes) provide an alternative solution but are …

Synthesis Of Biologically-Inspired Nanofiltration Membranes Using Protected, Mutated, And Simulated Aquaporins, Priyesh Ashokrao Wagh

Theses and Dissertations--Chemical and Materials Engineering

Gram-negative bacterial cells are surrounded by a cell membrane which protects the cell and controls the transport of nutrients and waste products in and out of the cells at a fast rate. This rapid transport of nutrients and wastes through the cell membrane is made possible by channel proteins called porins. Various types of porins present in the cell membrane have specific functions depending on their selectivity towards different nutrients, and channel proteins selective towards water are called aquaporins. These proteins restrict the passage of all entities except water molecules and they provide a fast transport rate of water molecules …

Surface Functionalization Via Photoinitiated Radical Polymerization For Rare Cell Isolation And Mechanical Protection, Calvin Frank Cahall

Theses and Dissertations--Chemical and Materials Engineering

Surface functionalization of living cells for cell therapeutics has gained substantial momentum in the last two decades. From encapsulating islets of Langerhans, to cell laden gels for tissue scaffolds, to individual cell encapsulation in thin hydrogels, to surface adhesives and inert surface camouflage, modification of living cell surfaces has a wide array of important applications. Here we use hydrogel encapsulation of individual cells as a mode of protection from mechanical forces for high throughput cell printing, and chemical stimuli for the isolation of rare cells in blood.

In the first study, we review methods of surface functionalization and establish a …

The Role Of Contact And Empathy In Stigma Toward Individuals With Mental Illness Among Mental Health And Non-Mental Health Professionals, Quincy A. Knolhoff

Masters Theses

This study was designed to help identify the factors that predict people's stigmatized attitudes toward individuals with mental illness. Corrigan (2002) suggested that stigmatized beliefs about individuals with mental illness may be detrimental to the potential recovery of these individuals, their self-esteem, empowerment, and their integration into society. One factor that has been found to reduce this stigma is personal contact with mentally ill individuals (Corrigan et al., 2002). Additionally, research has shown that empathy and principled moral reasoning are negatively correlated with prejudice, or stigma (McFarland, 2010). The current study examined level of contact, employment in a mental health …

Social Anxiety And Problematic Drinking In College Students: Examining Potential Mediators, Carissa Gutsmiedl

Masters Theses

Social anxiety and problematic drinking are among the most prevalent disorders present in the college population. Having one or both of these disorders while in college can be detrimental to academic performance and can increase dropout rates. Social anxiety has been found to precede problematic drinking in previous research. The purpose of this study was to help determine what variables may explain this relationship (i.e., mediators). The current study tested whether emotion regulation difficulties, drinking motives, alcohol outcome expectancies, and self-discrepancy mediated the relationship between social anxiety and problematic drinking among college undergraduates (N = 135). Results indicated that emotion …

A Qualitative Case Study On Best Practices Of Emotional Support Animal Policies, Jordan E. Dadez

Masters Theses

This study sought to understand the best practices and protocols of Emotional Support Animal policies in residential life. A qualitative case study was conducted to provide insight on the best practices of residential life Emotional Support Animal Policies. Four participants from institutions with established policies were interviewed to gain understanding of these protocols and policies, what is involved in the approval and accommodations process, and what challenges the participants face. The results showed a need to evaluate and change the current process that most institutions utilize for Emotional Support Animal approval. The approval process and accommodations process are two separate …

The Meaning Of A Woman's Work: Refugees, Statelessness, Nationality, And The Women's International League For Peace And Freedom, 1918-1931, Monica Burney

Masters Theses

This work analyzes how the Women's International League for Peace and Freedom (WILPF) sought to influence how the League of Nations approached questions of nationality and statelessness between 1918 and 1931. Especially important were the WILPF's efforts to aid women and children who remained in Turkey following the Armenian genocide, as well as the organization's efforts to address the statelessness crisis that arose following the dissolution of Austria-Hungary. Their activism helped to pressure the League of Nations into creating the Commission of Enquiry on Deported Women and Children in Turkey and Asia Minor. Their efforts to end statelessness culminated in …

Professional And Technical Writing In The High School Setting, Kristy C. Bennett

Masters Theses

No abstract provided.

Influences On International Students' Selection Of A Regional U.S. Institution: A Descriptive Study, Yazmin Rodriguez

Masters Theses

This study examined the factors influencing international students' election to study in the United States in general and at a regional four-year institution, specifically. Furthermore, it was designed to gather descriptive information about the barriers and challenges they face. A triangulation mixed methods approach was utilized based on a previously described push-pull model. The findings indicated that Availability of scholarships or work, cost and fees, and Visa processing and visa cost are the most difficult factors that international students face when making the decision to study in the U.S. This corresponded well with the qualitative responses from the …

Students' Perceptions Of Safety On A Campus In Relation To Firearms, Porfirio Gallegos Jr.

Masters Theses

This study will utilize a qualitative approach to better understand students' perceptions of safety on-campus in relation to firearms. Results found that participants felt safe on-campus due to its rural setting. Determination of geographical upbringing was noted as influential overall in perceptions of firearms. Participants were more confident with faculty having concealed firearms than students. Results also indicated that students have a lack of knowledge when it came to state legislation, their university's policies, and the protocol in place at their university in response to a mass shooting. Students reflected Perry's (2010) multiplicity stage of development appropriate for this age …

A Photo Illicit Study Of Black Women's Sense Of Belonging At A Predominately White Institution, Kayla Alexandria Slusher

Masters Theses

This qualitative study sought to examine how Black women define and create their sense of belonging while attending a predominately White institution using a photovoice approach. The women took photographs of spaces that they frequently occupy and then engaged in a face-to-face interview to discuss the photographs. The researcher also investigated four Black women, ranging from junior to graduate level, to identify how they developed a sense of belonging at the research site institution. Results of the study showed that a feeling of comfort was most important when identifying belongingness in a space. The participants were able to create a …

Digit Ratio As A Predictor Of Risk Taking And Sensation Seeking Personality Traits And Behaviors, Hanna Elizabeth Hobson

Masters Theses

Digit ratio is the difference in length between the pointer finger and the ring finger on either hand. Commonly referred to as the 2D:4D ratio, this ratio is determined prior to birth, and serves as an indicator of prenatal hormone exposure. Digit ratio has been found to correlate with fundamental personality and behavior characteristics in adulthood. Digit ratio is also thought to be a determinate of sexual orientation in both men and women, but has been debated in the literature. This study examined multiple 2D:4D relationships. Men who were found to have a more masculinized (ie. lower) digit ratio had …

Is The Relationship Between College Drinking Behaviors And Social Anxiety Mediated By Alcohol Expectancies And Traumatic Life Experiences?, Cortney Lin Kingsmill

Masters Theses

The relationship between alcohol consumption and social anxiety is difficult to understand, as there have been mixed findings in the research. In general, a positive correlation has been found between the two, with a focus on the mediating effect of alcohol outcome expectancies. Both positive expectancies and trauma have been correlated positively with social anxiety and drinking behavior. This paper reviews the literature and examines the relationship between social anxiety and alcohol consumption. A mediated model between these two variables with the mediators being alcohol expectancies and traumatic experiences was proposed, but this model did not fit the date. Specifically, …

The Effect Of Self-Recognition In The Competition Between Genets Of Solidago Altissima, Charles Jaques

Masters Theses

Competition is a major driving force in the abundance, distribution, and diversity within any biological system. Plants are more likely to suffer reductions in fitness as a consequence of competition, as they typically occur in dense communities. Individuals within these populations must respond to both inter- and intraspecific competition. Recent studies suggest that the ability to distinguish kin from non-kin may play an integral role in the success of individuals within different plant populations and communities. However, a less known interaction is that between individual clones within a genet as they grow, spread, and begin to interact with nearby rival …

Impact Of Giant Miscanthus (Miscanthus X Giganteus) Cultivation On Midwestern Farmland Birds, Matthew Craffey

Masters Theses

Giant Miscanthus (Miscanthus x giganteus) is a promising bioenergy feedstock, newly introduced to North America. However, the qualities that make Giant Miscanthus an attractive bioenergy feedstock may pose challenges to local wildlife. To assess the impacts of Giant Miscanthus on Midwestern farmland birds, I conducted point count and vegetation surveys at three sites in east-central Illinois where Giant Miscanthus was being cultivated. I used occupancy modeling to assess the relative influence of Giant Miscanthus on five species relative to other habitat and landscape characteristics. Dickcissel (Spiza Americana), Eastern Meadowlark (Sturnella magna), and Red-Winged Blackbird …

Evaluation And Demographic Response Of The Shovelnose Sturgeon Commercial Caviar Fishery In The Wabash River, Jessica L. Thornton

Masters Theses

Shovelnose sturgeon (Scaphirhynchus platorynchus Rafinesque) are considered one of the last commercially viable options for sturgeon roe harvest. Due to the collapse of several marine sturgeon fisheries and the Similarity of Appearances provision which protect shovelnose sturgeon in only a part of their range, the caviar fishery in the Wabash River remains an important point of supply for this lucrative natural resource. In this thesis, I presented an evaluation of the shovelnose sturgeon commercial caviar fishery in the Wabash River. More specifically, I described the demographic response of this population to continued exploitation over a 10-year period. Additionally, I …

Oxidation Of Β-O-4 Lignin Model Compounds And Application To Lignin Linkage Degradation Facilitated By Mechanochemical Treatment And Two-Step Oxidative Depolymerization, Soledad G. Yao

Theses and Dissertations--Chemistry

The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents ‒ as indicated by lower conversion in a standard reaction time ‒ likely due, at least in part, to the higher viscosity of ionic liquids. Mechano chemical treatment of Indulin AT kraft lignin by ball milling with KOH and toluene produced significant carbonyl functionality, among other changes. …

Protein Engineering In The Study Of Protein Labeling And Degradation, Xinyi Zhang

Theses and Dissertations--Chemistry

Proteins are large macromolecules that play important roles in nature. With the development of modern molecular biology techniques, protein engineering has emerged as a useful tool and found many applications in areas ranging from food industry, environmental protection, to medical and life science. Biomimetic membrane incorporates biological elements, such as proteins, to form membranes that mimic the high specificity and conductance of natural biological membranes. For any application involving the usage of proteins, the first barrier is always the production of proteins with sufficient stability, and the incorporation of proteins into the artificial matrix. This thesis contains two major parts, …

Applications Of Cell-Derived Vesicles: From Single Molecule Studies To Drug Delivery, Faruk H. Moonschi

Theses and Dissertations--Chemistry

Single molecule studies can provide information of biological molecules which otherwise is lost in ensemble studies. A wide variety of fluorescence-based techniques are utilized for single molecule studies. While these tools have been widely applied for imaging soluble proteins, single molecule studies of transmembrane proteins are much more complicated. A primary reason for this is that, unlike membrane proteins, soluble proteins can be easily isolated from the cellular environment. One approach to isolate membrane proteins into single molecule level involves a very low label expression of the protein in cells. However, cells generate background fluorescence leading to a very low …

Protein Suppression Of Flavin Semiquinone As A Mechanistically Important Control Of Reactivity: A Study Comparing Flavoenzymes Which Differ In Redox Properties, Substrates, And Ability To Bifurcate Electrons, John Patrick Hoben

Theses and Dissertations--Chemistry

A growing number of flavoprotein systems have been observed to bifurcate pairs of electrons. Flavin-based electron bifurcation (FBEB) results in products with greater reducing power than that of the reactants with less reducing power. Highly reducing electrons at low reduction midpoint potential are required for life processes of both aerobic and anaerobic metabolic processes. For electron bifurcation to function, the semiquinone (SQ) redox intermediate needs to be destabilized in the protein to suppress its ability to trap electrons. This dissertation examines SQ suppression across a number of flavin systems for the purpose of better understanding the nature of SQ suppression …

Linguistic Correlates Of The Quiet Ego In Narratives About The Self, Katherine Maurer

Masters Theses

Increasingly, research has shown that the drive to elevate the self and the excessive pursuit of self-esteem have negative effects on well-being and mental health. In addition, many of the defensive and aggressive tendencies seen in psychological research can be seen as efforts to defend and elevate the self. In contrast to these tendencies, the quiet ego construct describes a state of ego balance characterized by an inclusive sense of identity, perspective-taking, detached awareness (mindfulness), and growth orientation. The quiet ego and related qualities have been associated with many positive outcomes. A body of research using the Linguistic Inquiry and …