Digital Commons Network^™

Investigating The Effects Of Prenatal E-Cigarette Exposure On Postnatal Liver Histology, Emma Mcclellan

College of Arts & Sciences Senior Theses

The electronic cigarette (e-cigarette) entered the American market in the mid-2000s and quickly became popular. This product poses a significant threat to youth with 1.63 million students reporting use in 2024. Adverse health effects to different organs are well known. The liver is less studied, and despite its role in detoxification of e-cigarette chemicals, is a target of injury. Unlike the known effects of cigarettes and nicotine on the liver from adult or prenatal exposure, effects of prenatal exposure to e-cigarettes on liver remain to be defined. The current study investigated the effects of prenatal exposure of e-cigarettes on liver …

Effects Of Cadmium And Diet On Metal Accumulation And Kidney Cell Death Pathways., Justin Xu

College of Arts & Sciences Senior Theses

Cadmium (Cd) is a non-biodegradable environmental toxin and accumulates in the body with an estimated half-life of 30-45 years. Humans can be exposed to Cd through diet, drinking water, tobacco smoking, and industrial pollution. Cd can especially accumulate in the kidney due to the release of Cd from protein-metal complexes when filtering blood in the tubules causing oxidative stress and inducing kidney injury. Obesity is another risk factor for kidney disease therefore we examined the dual effects of Cd and obesity on the accumulation of essential metals in mouse kidneys. Starting in utero and continuing until 24 weeks postweaning, male/female …

Kentucky History Is Native History: Decolonizing Native Portrayals In Kentucky Museums., Mandala Gupta Verwiebe

College of Arts & Sciences Senior Theses

Utilizing prominent decolonial museums scholarship, interviews conducted with anthropology and museum professionals, and Kentucky museum exhibitions, this research explores the history of Kentucky’s public institutions’ Indigenous representation and recommends guidelines to improve their portrayal of Native people. Through a historical analysis, this research finds factors that influence Kentucky institutions’ portrayals of Native history, such as early harmful grave looting of Indigenous ancestral remains, the prominence of the Myth of the Dark and Bloody Ground, and a weakened state governmental Native American Heritage Commission. After considering both decolonial theory and the experiences of Kentucky heritage professionals, this research recommends three methods …

Understanding The Properties Of Repair Protein P26 For Dry-State Preservation Of Biological Materials., Hannah Skaggs

College of Arts & Sciences Senior Theses

The preservation of complex biological materials in the frozen state has been well established and plays a critical role in the advancement of clinical applications and the pharmaceutical industry. Cryopreservation of complex biological materials has several clinical applications, including vaccine preservation, bone marrow transplants, cell therapeutics, and increasing the shelf life of red blood cells (RBCs) for transfusion. However, many challenges are present, including the use of toxic protective agents and the financial burden of maintaining extremely low temperatures between 193.15 and – 77.6 K (Parihar, Kumar et al. 2023). Lyophilization, or freeze-drying, presents an opportunity to mitigate such challenges. …

Recombinant Expression And Purification Of Porphyromonas Gingivalis Tyrosine Kinase 1 In Escherichia Coli., Laura K. Hanna

College of Arts & Sciences Senior Theses

The goal of this study was to optimize the expression and purification of Porphyromonas gingivalis Tyrosine Kinase 1 (Ptk1) in recombinant Escherichia coli containing the plasmids Gro_ESL and Ptk1, with a His₆ tag_, to obtain a highly pure protein sample. Various experimental conditions were tested to determine the most effective parameters for protein expression and purification, including adjustments in induction timing, buffer composition, and purification techniques.

Optimal protein expression was achieved when cells were induced at an optical density (OD) of 0.3 to 0.4. β-D-1-thiogalactopyranoside (IPTG), which activates the lac operon, was used to induce Ptk1 expression. A …

Synthesis, Structure, And Anticancer Activity Of A Dinuclear Organoplatinum(Iv) Complex Stabilized By Adenine, William Howard

Faculty

The dinuclear platinum(IV) compound {Pt(CH3)3}2(μ-I)2(μ-adenine) (abbreviated Pt2ad), obtained by treating cubic [PtIV(CH3)3(μ3-I)]4 with two equivalents of adenine, was isolated and structurally characterized by single crystal X-ray diffraction. The National Cancer In-stitute Developmental Therapeutics Program’s in vitro sulforhodamine B assays showed Pt2ad to be particularly cytotoxic against the central nervous system cancer cell line SF-539, and the human renal carcinoma cell line RXF-393. Furthermore, Pt2ad displayed some degree of cytotoxicity against non-small cell lung cancer (NCI-H522), colon cancer (HCC-2998, HCT-116, HT29, and SW-620), melanoma (LOX-IMVI, Malme-3M, M14, MDA-MB-435, SK-MEL-28, and UACC-62), ovarian cancer (OVCAR-5), renal carcinoma (A498), and triple negative breast …

Fabrication And In Vitro Biocompatibility Assessment Of Composite-Coated Magnesium Materials, Bryce Williams

Biomedical Engineering Undergraduate Honors Theses

This study provides a comparative assessment of the corrosion, morphology, and biological properties of four of the most promising coating methods for magnesium in biomedical applications, namely micro-arc oxidation (MAO), graphene oxide (GO)-containing MAO coating, MAO/sol-gel composite coating, and MAO/polycaprolactone (PCL) polymer dip coating approaches. Despite the abundance of research focused on these promising approaches, there is a notable lack of comparative studies evaluating their properties. To this end, the investigated composite coatings are ZK60+MAO, ZK60+MAO/GO, ZK60+MAO/Sol-gel, and ZK60+MAO/PCL composite coating. Several tests were used to assess various properties of the prepared groups such as in vitro corrosion characteristics, surface …

Behavior Change: Actions To Restore Piedmont Prairie And Adopt Sustainable Behavior, Kacey Marie Kaibery

All Theses

Restoration of an ecosystem or adoption of sustainable behavior could benefit the environment. Valuable ecosystem services, like water filtration and habitat for pollinators, inspire investigation into the restoration of grasslands, like Piedmont prairies. This research endeavors to determine the impact of disturbance type (tilling, herbicide, mowing, fire, control with seed or no seed). The second-year aboveground biomass was harvested, identified, counted, and weighed to understand plant species’ response after the application of the disturbance. Target species and plant community diversity did not significantly vary between disturbance types. Planting methods (hand dispersal, drill, one-month and six-month transplanting) on Asclepias tuberosa establishment …

Investigation Of Anhedonia: A Literature Review, Austin G. Littlejohn

Honors Capstones

"Investigation of Anhedonia" serves as an independent study where a Literature Review was conducted to research different aspects and elements of the psychological phenomenon known as Anhedonia. With the support of psychology mentors and utilization of the library's resources, the research investigated what Anhedonia is and how it is connected to stress and trauma, the trajectory or progression of Anhedonia and its symptoms, the connection to more well known psychological disorders like Post-Traumatic Stress Disorder, PTSD, and Anhedonia's status of a stress response and whether or not it could be considered a separate disorder. The significance of the literature in …

Health Professional Perspectives On Sudden Unexpected Infant Death In Arkansas, Laura Hansen, Bart Hammig

Health, Human Performance and Recreation Undergraduate Honors Theses

Arkansas has one of the highest Sudden Unexpected Infant Death (SUID) rates in the nation, with 173.6 deaths for every 100,000 live births (CDC, 2024). This is much higher than the national rate, indicating a significant need for prevention education. Sudden Unexpected Infant Death is an umbrella term used to categorize Sudden Infant Death Syndrome (SIDS), unknown death causes, and accidental suffocation in bed. SUID rate reduction can be achieved by following infant-safe sleeping guidelines, which include crib use, flat and firm mattresses, no blankets, and putting babies on their backs. In this proposed study, health care professionals across Arkansas …

Characterization Of 3d Printed Microdialysis Probes For Solute Recovery And Non-Specific Adsorption, Bailey N. Scoggins

Chemistry & Biochemistry Undergraduate Honors Theses

Microdialysis is an important sampling technique that has uses in a wide range of disciplines, such as neuroscience and pharmacokinetics. 3D printing aims to address adaptability and customization issues that are present in standard “off-the-shelf” microdialysis probes. This work aims to lay the groundwork for characterizing a 3D printed microdialysis probe designed at the University of Arkansas. One experiment involved measuring solute recovery of caffeine as a function of flow rate of a standard CMA 11 probe to assess its membrane performance. The other goal was to learn about non-specific adsorption tendencies of enzymes (i.e., to what degree proteins stick …

Efficacy Of Mitophagy Inhibition As A Potentiating Agent For Conventional Chemotherapy, Morghan Relich, Shelby Bess

Biomedical Engineering Undergraduate Honors Theses

Cancer is a result of uncontrolled growth and reproduction of cells. Damaged or abnormal cells grow and multiply when they should not and in turn the cells continue to proliferate and metastasize. Malignant cells rely on functional mitochondria for proliferation, metastasis, and survival. These mitochondria maintain a functional mitochondrial network through a quality control mechanism called mitophagy. Mitophagy is a conserved intracellular process to maintain quality control and remove damaged mitochondria.

Previous research has been done to examine the effects of mitophagy in tumor cells, as well as the effects of mitophagy inhibition. One focus of current research has been …

The Effects Of Daily Beef Consumption On Sleep, Mood, And Wellbeing In Postmenopausal Women, Caroline M. Coughlin

Biological Sciences Undergraduate Honors Theses

Menopause is often accompanied by changes in sleep, mood, and overall well-being, partly due to hormonal shifts and loss of muscle mass. Protein intake, especially from nutrient-rich sources like beef, may help address these changes, but research in postmenopausal women remains limited. This study explored how daily beef consumption, as part of a higher-protein diet, affected sleep quality, mood, and well-being over eight weeks. Ten active postmenopausal women were randomly assigned to either a control group (meeting standard protein recommendations) or a treatment group consuming twice that amount, including one serving of lean beef per day. Sleep was measured using …

The Associations Of Mental Health With Academic And Exercise Procrastination, Casey L. Dang

Biological Sciences Undergraduate Honors Theses

This study examines the relationship between exercise procrastination and academic procrastination with symptoms of depression and anxiety among college students. Procrastination is commonly studied in academic settings, but limited research has looked at how various types of procrastination can impact mental health. In this study we specifically look at exercise and academic procrastination. A total of 109 undergraduate students participated by completing surveys measuring their levels of academic and exercise procrastination, as well as their symptoms of depression and anxiety. The results showed that higher levels of both academic and exercise procrastination were significantly associated with higher levels of depression …

Balancing Tradition And Tourism: Crafting An Effective Marketing Strategy For Belize's National Parks, Kyler Marie King

Marketing Undergraduate Honors Theses

This thesis reflects on a summer internship in the small town of Dangriga, Belize. The author interned at Mayflower Bocawina National Park, a role made possible through Dr. Amy Farmer and Mr. Steve Darr. While tourism plays a significant role in Belize’s economic development, communities like Dangriga remain underdeveloped in their tourism strategies. The author and her partner collaborated to design a targeted marketing plan for Mayflower Bocawina National Park, aimed at increasing visitor engagement and boosting local tourism revenue.

Chhatrapati Shivaji Maharaj International, Sahit Liyanage

A Midwestern Review: A Magazine of the Arts and Issues at DePauw University

Sahit Liyanage is a Freshman at DePauw University. He is yet to declare a major, but it will be either English Writing or a double major in English Writing and Biology. He enjoys wildlife photography, boxing and badminton.

Mirrors Of Learning: Amplifying Engagement And Retention With Culturally Relevant Teaching In 21st-Century Education, Britney Buckner

Honors College Theses

This research investigates the impact of Culturally Relevant Teaching (CRT) on student engagement and information retention, in alignment with 21st-century learning objectives. CRT, which incorporates educational content reflecting the diverse identities of students, fosters a deeper connection to the material and aligns with the fundamental purpose of education in preparing students for societal and global contexts. By mirroring their realities in the curriculum, students are motivated to learn and retain information, recognizing its relevance to their lives. This increased retention is essential for accurately assessing student knowledge against state and national benchmarks, indicative of successful 21st-century education. Furthermore, CRT supports …

Cognitive Advantages Of Dual Language: Bilingualism And Its Relationship With Working Memory And Controlled Attention, Ellison Alexander

Honors College Theses

This study investigates language familiarity and executive function within individuals who are fluent in or actively learning a second language, demonstrating whether bilingualism influences working memory performance and controlled attention. The study population consisted of undergraduate students attending Murray State University. Three groups were evaluated: students with a low-experience level in a second language (100 level classes), a high-experience group (200 level classes and beyond), and a separate control group of monolingual students without college-level language experience. All groups completed assessments of working memory performance and controlled attention by engaging in the Symmetry Span task and the Simon task. In …

The Ethics And Legality Of Artificial Intelligence Artwork: A Vulnerability Theory Analysis, Gayatri Rajamony

Computer Science Honors Theses

No abstract provided.

Maximizing Crop Production And Profitability Through Double Cropping Corn And Soybean Systems In South Carolina, Bennett Harrelson

All Dissertations

Profitability is critical for farm sustainability, efficiency, and longevity. Over the last decade, corn and soybean commodity prices have fluctuated considerably, and more recently, extreme increases in input prices have narrowed profit margins. Non-traditional cropping systems that can boost profit are becoming of interest to farmers in South Carolina, specifically double cropping soybean behind corn. In this scenario, corn is harvested at high moisture contents and followed by ultra-late planted soybean. However, prior research related to the agronomic production practices of double cropping corn and soybean is minimal. To develop best management practices for growers interested in double cropping corn …

Stromal Cells In The Small Intestine: Physiology, Localization, Function, And Alterations Induced By Chronic Arsenic Exposure, Scott Ventrello

All Dissertations

Arsenic is a prevalent toxicant found to affect around 94 to 240 million individuals in over fifty countries who are exposed to levels above the EPA and WHO standard of 10 ppb. As one of WHO’s top ten chemicals of public health concern, it is linked to several chronic diseases including diabetes, obesity, cancers, and inflammatory bowel diseases. Arsenic increases inflammation and disrupts the intestinal barrier in the small intestine and colon. Further, previous studies found that arsenic decreased secretory cell lineage and stromal cell gene expression markers in the small intestine. Thus, our goal was to investigate arsenic’s effect …

The Sound Of Young America/The Soul Of Young America: A Sonic Rhetoric Inquiry Into 1965 And The Music Defining A Generation In Crisis, Jessica Dyche

All Dissertations

The Sound of Young America/The Soul of Young America: A Sonic Rhetoric Inquiry into 1965 and the Music Defining a Generation In Crisis builds a case for sonic rhetoric theory that sees sonic rhetoric move outside of pedagogy, becoming a valuable tool for rhetorical analysis outside the classroom. To this end, The Sound of Young America/The Soul of Young America employs sonic rhetoric concepts and methodology grounded in cultural rhetorics, social history, and sociomusicology to inquire into the cultural and social relevancy of rock music, specifically to this project, in 1965. Sonic rhetoric sees sound and music as underexplored, but …

Sidewindings, Jeff Marvel

Graduate Thesis Collection

A memoir cataloguing the impacts of my late-onset Type 1 diabetes diagnosis at the age of 26, in which I attempt to realize the ways in which my sense of self, and sense of the world around me, has been altered or disfigured by this hardly-visible disease.

I Am (Me)Dicine: An Analysis On The Influence Of Humanities Courses Within The Construction Of Internal And External Identities Within Pre-Med Students At Uno, Alix Barnes

Theses/Capstones/Creative Projects

The purpose of this project is to investigate how arts and humanities coursework may enhance the development of internal and external identities for premedical students beyond their traditional scientific coursework. A literature review shows positive findings on identity development and the influence of arts and humanities coursework on medical education. This investigation will take place through a mixed-method survey distributed to UNO premedical students and will explore themes of self-reflection, personal and professional growth, and understanding of external perspectives. An optional question prompts respondents to reflect further on their work within arts and humanities courses and their impact on these …

Presentation: Accuracy Of Ecg Chest Electrode Placement In Prehospital And Hospital Settings, Edwin L. Clopton, Kristiina Hyrkas Phd, Licnsc, Mnsc, Rn

Costas T. Lambrew Research Retreat 2025

Recipient of the Peter W. Bates Award for Excellence in Health Professions Education Research at the 2025 Costas T. Lambrew Research Retreat.

Venlafaxine Exposure In Pregnancy And Its Association With Pre-Eclampsia Development, Jhanvi Patel

Posters

Venlafaxine, a serotonin-norepinephrine reuptake inhibitor (SNRI), is widely used to manage depression and anxiety, including in pregnant women. However, its known hypertensive side effects raise concerns about a potential link to pre-eclampsia, a serious pregnancy complication characterized by new-onset hypertension and proteinuria. Pregnant women with psychiatric disorders already have an increased risk of hypertensive disorders, and while untreated depression can lead to adverse outcomes such as preterm birth and fetal cortisol elevation, the safety of venlafaxine remains uncertain. Current research lacks wellcontrolled studies assessing its association with hypertensive complications in pregnancy. This systematic review aims to evaluate whether venlafaxine use …

Morphology Of Smallmouth Bass (Micropterus Dolomieu) In Arkansas, Robert Laroche

Biological Sciences Undergraduate Honors Theses

The Smallmouth Bass, Micropterus dolomieu, is one of the most important game fishes in Arkansas. Three distinct lineages are recognized from different river basins: the Northern, Neosho, and Ouachita Smallmouth Bass. Understanding the biodiversity within this species complex inhabiting different water bodies in Arkansas is important for effective management of the fisheries resource and to guide conservation efforts. But current data on distribution of distinct forms are insufficient to guide management. The primary goals of the study presented here was to quantify morphological characteristics to identify distinct lineages of Smallmouth Bass, and to determine their specific locations within Arkansas streams …

The Prevalence Of Cytauxzoon Felis In Southern United States, Anna Haynes

Biological Sciences Undergraduate Honors Theses

Cytauxzoonosis, caused by transmission from a tick infected with the pathogen Cytauxzoon felis, is considered an emerging tick-borne disease in domestic felines. While not as fatal in other vertebrates such as the reservoir host Lynx rufus (bobcat), in domestic cats, infection is fatal nearly 100% of the time. This study sought to screen ticks pulled from felines for the pathogen across three states in an area identified as a hotspot. Out of 80 ticks screened, 12 tested positive for the pathogen. The positive population of ticks came from 3 neighboring counties in Southern Missouri: Jasper, McDonald, and Newton. McDonald …

Growth Of Methanogens Using Pyrite As An Energy Source: Implications For Life On Mars, Mckenzie K. Ragan

Biological Sciences Undergraduate Honors Theses

The search for life beyond Earth has been the motivating factor for many scientist’s research in the past and currently. Specifically, the efforts have largely been focused on Mars. Mars exhibits qualities that are similar to the life-harboring characteristics of Earth, creating the possibility for life to exist on Mars. Mars’ subsurface conditions may be ideal for specific microorganisms to thrive, providing a haven away from the harsh surface conditions (Mancinelli, 2000). It is known that one of the most important elements to support life, H₂O is found in the subsurface of Mars, along with an atmosphere lacking …

Protein Intake And The Wellbeing Of Postmenopausal Women: Investigating Sleep, Mood, And Quality Of Life, Aleesha Imran

Biological Sciences Undergraduate Honors Theses

Postmenopausal women commonly experience declines in sleep quality, mood, and overall wellbeing, with limited non-pharmacological options available to address these concerns. This randomized controlled trial investigated whether daily beef consumption as part of a higher-protein diet could improve sleep, mood, and quality of life over four weeks. Participants were randomized to either a standard protein intake control group or a treatment group consuming a high-protein diet with daily lean beef.

The treatment group showed modest improvements in subjective sleep quality and perceived health compared to controls, although these changes were not statistically significant. Fatigue, however, significantly decreased in the treatment …