Digital Commons Network^™

Development Of Plasmonic And X-Ray Luminescence Nanoparticles For Bioimaging And Sensing Applications, Meenakshi Ranasinghe

All Dissertations

This dissertation discusses the development of plasmonic and X-ray luminescence nanoparticles (~100 nm) to use in bioimaging and sensing applications. The nanoparticles have interesting optical properties compared to their atomic levels and bulk materials. The optical properties of nanomaterials can be controlled by changing size, shape, crystal structure, etc. Also, they have a large surface area that can be functionalized with biomolecules. Therefore, the optical properties and biofunctionalized nanomaterials are useful in biomedical applications such as targeted drug delivery, bioimaging, and sensing. The overall theme is to use nanoparticles with interesting optical properties compared to their atomic levels and bulk …

Reading Toward Breath: A Poetic Ecology Of Creative Reading, Jessica Schad Manuel

All Dissertations

Reading is an act of perception that begins in wonder and leads to wisdom. It is not a response to writing but a response-ability we have to interact with the world around us and the phenomena before us. Reading with the body leads to wisdom, and when we participate in our existence by being in the world, we are reading. So what is reading? Reading is making. We make connections, and we form relationships. The act of reading is more than a cognitive process and even surpasses the phenomenological encounter.

My research describes the reader’s relationship to the text as …

Network Of Folx: Applying The Use Of Community Cultural Wealth To The Experiences Of Black First-Generation Hbcu Students, Maurice Williams Jr

All Dissertations

Despite improvements in the rates of college admission over the past few decades, college persistence and graduation rates continue to be problematic, particularly for marginalized students—students of color and students from low-income and/or first-generation families at all institutional types. When attention is shifted to Black first-generation students at Historically Black Colleges and Universities (HBCUs), persistence research neglects to include how Black first-generation college students own their educational experience to gain access to college and persist through graduation nor does the research examine cultural factors that help these students persist through the college-going process. Building from both student persistence and community …

Use Of A Trial Function Method To Semi-Analytically Simulate Matrix Diffusion In Heterogeneous And Fractured Media, Kien Trung Pham

All Dissertations

A semi-analytic trial function model is applied to simulate matrix diffusion in systems of parallel fractures, 2-D/3-D discrete fracture networks, and in 3-D heterogeneous media. The trial function model gives low normalized root mean square error (NRMSE) when compared to the parallel fracture analytical solution over a range of fracture spacing, with considerations for retardation and decay. The semi-analytic trial function model is efficient in time and maintains less than 6% NRMSE when it simulates matrix diffusive transport in 2-D/3-D discrete fracture networks (DFN). The model can predict DFN plume within a few meters of accuracy compared to fine-grid DFN …

Spaces For Whom? : Identifying Participatory Strategies To Foster Students' Sense Of Belonging On Community College Campuses, Cynthia Clegg Davies

All Dissertations

In the United States, community colleges have served diverse student populations, including students of color and students with disabilities. While these colleges are celebrated for their access and affordability, student success is not guaranteed. As educators work to continuously improve course and program completion, students’ sense of belonging is critical. However, a review of scholarship from education, architecture, and planning revealed how students have navigated campuses that have not met their needs or reflected their experiences and have even been settings for discriminatory behaviors ranging from microaggressions to oppression. Recognizing the potential to increase sense of belonging through student participation …

Heat Stress Response And Excystation In Entamoeba Histolytica, Irem Bastuzel

All Dissertations

Entamoeba histolytica is a water- and food-borne intestinal protozoan parasite that causes amoebiasis and liver abscess and is responsible for symptomatic disease in approximately 100 million people each year leading to ~ 100,000 deaths. The most common disease transmission follows the oral-fecal route, but it can also be transmitted by mechanical vectors such as animals carrying the amoeba from contaminated sources to water systems. In rare cases, disease transmission has been recorded in some patients in which men-to-men sexual practices were preferred.

The life cycle of E. histolytica starts through ingestion of infectious cysts, which are non-dividing, quadri-nucleated structures surrounded …

Understanding Vascular Pathologies In Diabetes: Optimizing Tissue Engineered Blood Vessels Resistant To Diabetic Complications, Bethany Lefeber

All Dissertations

Diabetes Mellitus, a major risk factor for cardiovascular disease, currently affects 463 million people, or 9.3% of the world’s population – with numbers estimated to reach 578 million people by 2030. Hyperglycemia, dyslipidemia, oxidative stress, and inflammation, major manifestations of diabetes, together, significantly increase the risk of vascular tissue damage. Vascular damage is primarily caused by the interaction of cells and extracellular matrix (ECM) components with the elevated levels of glucose and lipids circulating through the blood and in the ECM. ECM proteins, such as elastin and collagen, are subject to glycation and crosslinking via advanced glycation end products (AGE) …

Examining Language Ideologies And Trilingual Practices In Family, Community, And School Contexts: Three Case Studies, Mihaela Gazioglu

All Dissertations

Despite increasing knowledge on trilingualism, we still have a lot to learn about the intricacies of becoming trilingual and what people do with different languages that they use or are exposed to (Chevalier et al., 2012; Choi, 2019; Cruz-Ferreira, 2006). This three-study dissertation employed qualitative research methods to address three aspects that current research offers little information. Each study focused, respectively, on 1) a child’s and her parents’ daily language practices to construct meaning in three languages, 2) how mothers' language ideologies influence their language practices and the support they offer to their trilingual children, and 3) teachers’ language ideologies …

Microbial, Chemical, And Functional Components In Kefir, Natto, And Feed Ingredients, Dana Mccurdy

All Dissertations

Kefir grains were purchased from online, home kitchen vendors in the United States (n = 22), inoculated into UHT milk, and incubated at 25°C for 22 hours. Results indicated lactobacilli, lactococci and yeast in all samples. Six out of 11 samples contained coliform, and all samples contained pseudomonal and staphylococcal species. Using targeted genome sequencing (16S) of kefir grain samples 1, 2, and 3 revealed that lactobacilli were the predominant genera of bacteria. ITS sequencing revealed different fungal species in each grain. Results indicated potential presence of menaquinone-4 and menaquinone-7 by UPLC-MS/MS analysis.

The fermentation of whole and ground soybeans, …

“We’Re Still Here:” Evaluating Academic Library Instagram Posting During The Covid-19 Pandemic, Julie Turley

Publications and Research

Academic libraries use social media to build community and increase visibility and engagement among followers–students, faculty, and staff. Instagram, in particular, is a popular social media platform used by a college-aged demographic. Academic library Instagram administrators create and maintain Instagram accounts to post visual content to promote the physical library and library services. In March 2020, the COVID-19 pandemic closed the college campuses of the New York City-based City University of New York (CUNY) system to all but “essential staff” and compelled non-essential employees to work from home. During the first few months of 2020, college library Instagram administrators in …

Dibutyl Amine Detection, Quantification, And Removal With Iron(Ii)Tetrasulfophthalocyanine (Fetspc), Kyle Bittner

Electronic Theses and Dissertations

Pesticide testing is of practical interest in various areas of today’s world due to their prevalence and toxicity. These areas include agriculture, environmental, chemical plants, and many others. Herbicides, like Roundup, contain secondary amines such as glyphosate. The ability to detect secondary amines could offer a method for glyphosate detection in agricultural and environmental samples. Secondary amines can interact with metal complexes through electron charge transfer. Such interactions can cause a change in the metal’s electron configuration and energy state and can be seen in the UV-Vis spectrum. Metal phthalocyanines (MPc’s) and other organometallic complexes have been of interest for …

Modern American Propaganda: An Institutional History, Douglas Morrow

War, Diplomacy, and Society (MA) Theses

The U.S. Department of State’s Bureau of Public Affairs and Public Diplomacy is the primary government institution in charge of overt, foreign-directed propaganda. This paper argues that the institutional culture of this institution was born and came to fruition in the period 1941-1953, and has not significantly changed since. That institutional culture includes a fierce adherence to a “strategy of truth,” with aesthetic norms being reserved and largely unemotional as a result of positioning themselves in moral and aesthetic opposition to Nazi and early Cold War Communist propaganda. Franklin Delano Roosevelt’s decision to staff these nascent institutions with artists, poets, …

Communication: Memorials: An Exhibit For The Communication Technology Behind A Range Of Memorials, Bradley Finnigan

Student Works

When memorials and monuments are visited, they are often viewed as a place to reflect or pay respects. What is likely often overlooked are the messages behind these memorials, intentionally molded into memorials by their designers. This exhibit highlights 11 memorials and monuments worldwide and showcases how they communicate complex messages through unconventional means. It encourages visitors to consider the thought that went into designing the memorial and offers a different perspective on how a message can be conveyed without the use of printed text. The included curatorial statement speaks more to these points.

Commitment Of Diversity, Equity, And Inclusion In Higher Education: Exploring Dei Elements Across Institutions, Dana R. Abrams

Graduate Theses and Dissertations (2019 - present)

This study examined the factors influencing university prioritization of diversity, equity, and inclusion (DEI). Using a framework grounded in organizational behavior—I examine commitment and ethical climate from an open systems perspective. This research was further informed by the Inclusive Excellence Framework—a meta-analysis aimed to integrate DEI efforts through dimensions of organizational behavior, and Smith et al.’s (1997) framework analysis of DEI research. This thesis explores DEI values and objectives, the procedures to address discrimination, and DEI elements and established structures. Through both quantitative and qualitative analyses of DEI websites across universities, this thesis offers a new perspective on organizational culture …

Genomic Analysis And Characterization Of Surface Properties Of Naphthalene Degrading Acinetobacter Isolates, Gunn Emilie Berge

Graduate Theses and Dissertations (2019 - present)

No abstract provided.

How Valuable Are Clinical Neuropsychological Assessments? A Meta-Analysis Of Neuropsychological Tests With Comparison To Common Medical Tests And Treatments, Murphy N. Harrell

Graduate Theses and Dissertations (2019 - present)

There has been a general decrease in neuropsychological assessments at a time when medical diagnostic technology and treatments have expanded, leading to a faulty assumption that medical tests and healthcare treatments provide more reliable or valid data than psychological assessments. A landmark report from the American Psychological Association’s (APA) Psychological Assessment Work Group (PAWG) found that validity coefficients for many psychological tests were indistinguishable from those of medical tests (Meyer et al., 2001). An updated systematic review of the advancement in neuropsychological testing is essential to the continued advancement of the value of neuropsychological assessment in healthcare. This meta-analysis sought …

Individual Characteristics Of Postsecondary Underachievement, Natasha Godkin

Electronic Theses and Dissertations

Underachievement in postsecondary education has been a growing concern for educators and researchers. Higher education institutions have implemented early alert systems to identify students performing below standards. This early warning system has major limitations that confine it to an identification only approach. The current study aimed to investigate the psychometric properties of the Student Attitude Assessment Survey-R (SAAS-R) in a postsecondary sample. First, a confirmatory factor analysis validated the SAAS-R in a postsecondary sample. Predictive validity was then investigated by identifying students as underachieving or achieving based on responses to the SAAS-R and via a regression-based discrepancy model (ability vs. …

Vasopressin Resets The Central Circadian Clock In A Manner Influenced By Sex And Vasoactive Intestinal Polypeptide Signaling, Kayla E. Rohr, Thomas Inda, Jennifer A. Evans

Biomedical Sciences Faculty Research and Publications

Background/Aims: Circadian rhythms in behavior and physiology are programmed by the suprachiasmatic nucleus (SCN) of the hypothalamus. A subset of SCN neurons produce the neuropeptide arginine vasopressin (AVP), but it remains unclear whether AVP signaling influences the SCN clock directly.

Methods: Here, we test that AVP signaling acting through V1A and V1B receptors influences molecular rhythms in SCN neurons. V1 receptor agonists were applied ex vivo to PERIOD2::LUCIFERASE SCN slices, allowing for real-time monitoring of changes in molecular clock function.

Results: V1A/B agonists reset the phase of the SCN molecular clock in a time-dependent manner, with larger magnitude responses by …

Cracked Cans, Bent Wire: Dating Historical Metal At Biry/Ahr House, Castroville, Texas, Maggie Logan

Graduate Dissertations and Theses

In this work I investigate changes in historical metal consumption practices over time at Biry/Ahr House, a frontier settlement in Castroville, Texas. Alsatian immigrants settled this site in Medina County as part of the empresario system of the 1840s. Biry/Ahr House was home to two families, the Birys (1844-1921) and the Groff/Tschirharts (1921-1972). Using vibrant materialism, consumerism, and collections-based research, I address the ways in which metal usage changed over time at the site as well as the factors behind these changes. I also consider the role that Alsatian heritage has played in the transformation of Biry/Ahr House from a …

Ribonucleotide Reductase Subunit Switching In Hepatoblastoma Drug Response And Relapse, Anthony Brown

Theses and Dissertations (ETD)

Hepatoblastoma is the most common primary liver cancer in infants and young children. Despite being a very rare cancer that accounts for only 0.5-2% if all childhood cancer cases, HB has the largest increase in incidence among childhood cancers in the United States and worldwide. The five-year survival rate of children with the aggressive forms of HB, including those that have developed metastatic or recurrent diseases, is less than 40% due to the lack of effective treatment. We aim to identify targetable mechanisms underlying the progression and drug resistance of high-risk HB. Our recent work on HB mouse and organoid …

Social Justice In Teacher Education: Equity, Diversity, Inclusion, Tara Ratnam, Elaine Chan, Darlene Ciuffetelli Parker

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Editorial: Social Justice in Teacher Education: Equity, Diversity, Inclusion, Tara Ratnam, Darlene Ciuffetelli Parker, and Elaine Chan

Teacher Candidates’ Responses to Examining Personal Privilege: Nuanced Understandings of the Discourse of Individualism in Critical Multicultural Education, Erin Feinauer Whiting and Ramona Maile Cutri

Narrative Reconsiderations of Teaching as Negotiated Curriculum for Social Justice and Equity, Candace Schlein, Dianne Smith, and Charles Oakley

Radical-Transformative Agency: Continuities and Contrasts With Relational Agency and Implications for Education, Anna Stetsenko

Computer Science for Equity: Teacher Education, Agency, and Statewide Reform, Joanna Goode, Max Skorodinsky, Jill Hubbard, and James Hook

Design …

Characterization Of 3d Stereolithography (Sla) Printed Polymer For Autonomous-Flow Microfluidic Devices, Michelle Gamboa

Open Access Theses & Dissertations

3D Stereolithography (SLA) printing is a high-throughput, precise and reproducible manufacturing platform which makes it a desirable technique to develop microfluidic devices for bioanalytical applications. However, limited information exists regarding the physical, chemical, and biological properties of the polymer resins used in 3D SLA printing. This project demonstrates the characterization of a commercially available 3D SLA printed resin polymer used to develop an autonomous-flow (self-driven) microfluidic device. In this investigation, time-dependent materials characterization was done on the Formlabs clear V4 resin to observe changes in mechanical and surface properties. The clear, printed polymer was analyzed with attenuated total reflectance (ATR), …

Consciousness To Teach Bilingual Education In The Borderlands: Pláticas With Latina Teacher Candidates, Helena Muciño Guerra

Open Access Theses & Dissertations

Despite the 3.9 million Latinx emergent bilinguals (EB) across U.S. classrooms (National Center for Educational Statistics, 2019), most bilingual teachers are White monolinguals (Cochran-Smith et al., 2016). Literature on teacher preparation in bilingual education (BE) has shown that due to the shared identities and origin and similar schooling experiences with their Latinx students, Latinx bilingual teacher candidates have a personal commitment to improving their studentsâ?? educational opportunities (Cervantes-Soon, 2018). Yet, most research on teacher preparation in bilingual education has been conducted in predominantly White-monolingual contexts, using Eurocentric research methodologies and methods, disregarding how the past educational experiences of Latinx inform …

J Mich Dent Assoc August 2022

The Journal of the Michigan Dental Association

Monthly, The Journal of the Michigan Dental Association brings news, information, and feature articles to our state's oral health community and the MDA's 6,200+ members. No publication reaches more Michigan dentists! In this August 2022 issue, the reader will find the following original content:

• A cover story on choosing to partner with a Dental Service Organization (DSO)
• A conversation with three dentists on how and why they are involved with organized dentistry.
• A 10-Minute EBD on the efficacy of vacuum-formed removable orthodontic retainers
• News you need, an Editorial, a report from our ADA Trustee and regular department articles, Dentistry and …

Court Actor Decision-Making: The Influence Of Victim Characteristics On Legal Outcomes In Cases Of Bias Homicide, Taylor June

Graduate Theses and Dissertations

While most states in America have passed laws permitting harsher punishments for those convicted of hate (or bias) crimes, there has been no research to date on the adjudication of these defendants, including how legal and extralegal attributes of bias crime shape prosecutorial and judicial decision-making. This gap in research is likely due in part to the limitations of official data on bias crimes. Fortunately, new data on legal outcomes for bias homicide offenders who target victims because of their race, ethnicity, nationality, religion, sexual orientation, gender identity or homed status have become available from the open-source database known as …

Examining The Escalation To Violence At Political Protests: A Conjunctive Analysis, Austin C. Barber

Graduate Theses and Dissertations

Despite extensive sociological research on the broader causes of collective violence, there has been much less research on the situated nature of more recent violence committed by individuals attending protests and rallies, such as Black Lives Matter (BLM) protests and the 2021 Stop the Steal rally at the U.S. Capitol. To fill this gap in research, I draw from the tenets of Environmental Criminology and the Situational Crime Prevention (SCP) perspective to quantitatively examine individual-level and incident-level risk factors most associated with contemporary forms of collective violence. After exploring situated differences across ideological movements, I ask how do risk factors …

Ready Player?: Sex And Race In Video Games, Matthew Michael Espino

Open Access Theses & Dissertations

As a child, I had always been fascinated with video games. Sure, I used video games as a way to relieve stress mainly, but I found myself drawn into the worlds that I was immersing myself in. These worlds are filled with social structures, cultures, governments, even religions. Once I started doing research in college, I took a bit of a step back from the games I loved and took a broader look at what I was playing. Specifically, I wanted to see what these worlds had to offer in terms of representation of races, gender, and non-human characters. These …

Multi-Sensor Signatures From Ultrasonic Wire Embedding Used In Hybrid Additive Manufacturing, Patrick Steven Gutierrez

Open Access Theses & Dissertations

Additive Manufacturing (AM) has matured such that its products are used in applications ranging from prototypes to end-use parts; however, to expand the adoption of AM, the inclusion of multiple manufacturing technologies has become a focus area especially when the result is a 3D printed part with an embedded electrical system. The W.M. Keck Center for 3D Innovation has developed the Foundry Multi3D system consisting of two material extrusion AM machines, a robotic arm, and a CNC machine equipped with a laser soldering tool, solder micro-dispensing tool and an ultrasonic wire embedding (USWE) tool. The focus of this paper is …

Experiences Of Latinidad And First-Generation College Students In Jane The Virgin: Using Auto-Historia Teoria And Finding Coyolxauhqui, Gema Sarahi Lopez

Open Access Theses & Dissertations

This thesis is an examination of the importance of Latinx and first-generation college student representation in media. By using autohistoria-teoría and content analysis, I aim to find the ways in which the show, Jane the Virgin, influences my experiences of Latinidad as well as how it represents the first-generation college experience and how those relate to my own. I use Gloria Anzaldúa's model to study identity dealing with nepantla, arrebatamientos, and the Coyolxauhqui process to discuss my own identity.

Reflections On The Adaptation Of A Postgraduate Degree In Water Management From In-Person To Remote Delivery, Murray Clamen, Emma Anderson, Johanna Dipple, Jan Adamowski

Journal of Contemporary Water Research and Education

In early 2020, the COVID-19 pandemic spurred the rapid adaptation of university course delivery to an online format. Though in-person delivery partially resumed in the Fall of 2021, future conditions may favor a return to, or addition of, remote delivery. It is therefore important for instructors, program directors, and institutions to capitalize on this learning opportunity and reflect on adaptation measures’ successes (and failures) to inform future online course design. The reworking of McGill University's Master of Science Program in Integrated Water Resources Management (IWRM) provides a case study to evaluate the adaptation of remote teaching of water resource management. …