Digital Commons Network^™

Improving Learning Habits In High School Ela, Alexander Sinn

Masters Projects

Students lack the habits and skills to process and apply what they have learned. In their secondary education, they are not developing the traits that help them succeed in college courses. Students are not explicitly taught note-taking and other study skills needed to succeed in core academic areas, English Language Arts (ELA) in particular. To address the needs of students, curriculum must incorporate expectations for students in self-efficacy and self-regulatory areas of learning. In the secondary ELA classroom, students should be provided opportunities and experiences to develop good habits. These should be requirements of 9th and 10th grade curriculum. The …

Beat Behind The Bark: Investigating The Effects Of Music Tempo On Canine Physiological And Psychological States, Marley Lanier

Honors Theses

This study explores how the tempo of music, measured in beats per minute (BPM), affects dogs' heart rate and oxytocin levels, adding to past research that shows that music affects physiological and behavioral states in dogs. Being able to understand these effects holds practical implications for improving overall well-being in canines in environments such as homes, shelters, and clinical environments. Using a within-subjects design, the dogs were exposed to slow and fast versions of one instrumental track, along with a white noise baseline condition before each randomized condition. Heart rate was recorded continuously throughout the session, and oxytocin saliva samples …

Bottles, Butterflies, And Biomass: Recycled Glass Sand, Microbial Additions, And Herbivory Effects On Milkweed Growth, Kealey Skinner

Honors Theses

Plant-soil-microbe interactions are integral components of ecological networks and drive ecosystem function from the bottom-up. Whereas herbivores regulate ecosystem function from the top-down, having opposing and potentially complementary effects on ecosystem function. My thesis sought to understand how below-ground microbial communities contribute to herbivore preference and plant biomass across varied soil substrates. My thesis asked: how do substrate and soil microbial communities influence herbivore preference and plant biomass accumulation on swamp milkweed (Asclepias incarnata)? To address this question, seedlings of A. incarnata were sown in 2.5 cm wide × 10 cm deep pots filled with either natural beach sand or …

Distribution Mapping And Modeling Of The Invasive Japanese Knotweed, Jossalyn Rogalski

Masters Theses

This thesis investigates the distribution of invasive Japanese knotweed across Michigan. This plant poses significant challenges to land management due to its rapid growth, environmental impacts, and difficulty of removal once established. Using geographic information systems (GIS), remotely sensed data, and secondary environmental datasets, this research maps current infestations and analyzes key factors influencing the species’ growth and dispersal, such as soil composition, hydrology, land use, and a range of environmental variables, including climatic (annual mean temperature, temperature seasonality, annual precipitation, precipitation seasonality), elevation, vegetation and hydrological indices (NDVI, EVI, NDWI), percent tree cover, and distance to roads. Spatial analysis …

Separating And Identifying Delta-8-Thc And Delta-9-Thc On Gc/Ms, Ann Schmidt

Honors Projects

Delta-8-THC and delta-9-THC are two psychoactive compounds found in marijuana products which are only distinguishable from each other by alternating the location of a single double bond.  This makes them a challenge to separate and identify as different compounds using the GC/MS.  These isomers are legally recognized as the different compounds, so being able to identify delta-8 and delta-9 THC separately is crucial to forensic analysis. The goal of this research project is to optimize an Intuvo 9000 GC connected to a standard MS to be able to separately and prominently identify delta-8-THC and delta-9-THC in a sample.  This was …

Taking A Deeper Look: Attributing Tonal Values Of Photolumens To Their Emulsions Using Scanning Electron Microscopy, Anna M. Moore

All Theses

This thesis examines whether tonal variation in photolumens made with historic silver gelatin photographic papers can be linked to differences in elemental composition. Photolumens are cameraless photographic images created by placing objects directly on light-sensitive paper and exposing them to ultraviolet light. Because expired and historic darkroom papers often produce unpredictable colors and tones, this study asks whether visually defined tonal groups also show measurable chemical differences.

Twenty historic paper samples were exposed, documented, and sorted into five tonal groups based on visible image characteristics. Each sample was then analyzed using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) …

Faculty And Academic Advisor Perspectives On Embedded Certifications Supporting Neurodivergent Learners, Katherine B. Watkins

Human Nutrition and Hospitality Management Undergraduate Honors Theses

This study explores the experiences, strengths, and challenges of neurodivergent individuals within educational and social environments, with a focus on promoting inclusivity and understanding. Neurodivergence, encompassing conditions such as autism, ADHD, dyslexia, and other cognitive variations, is increasingly recognized not as a deficit but as a natural form of human diversity. The research examines how traditional systems often fail to accommodate diverse cognitive styles, leading to barriers in learning, communication, and self-expression. Using a mixed-methods approach, the study combines quantitative survey data with qualitative interviews to capture both broad trends and personal narratives. Participants reported that rigid structures, sensory overload, …

Enhancing Food Security In Stann Creek. Belize Using Meat Rabbits, Lindsey Garretson

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

In recent years, food insecurity and the prevalence of hunger have rapidly grown throughout the world, but especially within Latin America and the Caribbean. Along with growing rates of food insecurity and hunger there are increases in medical conditions including negative impacts the functioning of every major organ system, increased rates of mental illness, both overweight and underweight children, wasting in both children and adults, and anemia. Availability and access to healthy, nutritional food options can help lower the risk of these conditions. With these considerations, the goal of this project was to create an all-encompassing manual and construction guide …

Keeping It Conservative (Under The Sheets): Conservative Political Ideology And Its Impact On Intimate Relationships, Amirah Harris

Theses & ETDs

This study examined the relationship between conservative political ideology and key aspects of romantic relationships, including gender role attitudes, expressions of intimacy and affection, communication styles, and partner preferences. Based on prior research suggesting that conservatism is associated with traditional social values and relationship behaviors, four hypotheses were proposed predicting significant associations between political conservatism and these variables. A sample of 334 adults in the United States completed an online survey consisting of the Attitudes Toward Women Scale, Index of Sexual Satisfaction, Affectionate Communication Index, Communications Patterns Questionnaire, and the Ideal Partner and Ideal Relationship Scale. ANOVA analyses were conducted …

The Proximal Effects Of Blood Flow Restriction On The Infraspinatus Muscle Cross-Sectional Area And External Rotation Strength, Adam James Zavalney, Noah Matthew Gaffy, Tyler Grensteiner

Physical Therapy Scholarly Projects

Purpose/Hypothesis: Blood flow restriction (BFR) is a method of training that utilizes a tourniquet style cuff to limit the amount of blood flow to a working muscle during exercise. This method of training allows an individual to train at lower intensities while still gaining similar results to more traditional types of training. It has been shown in research that low intensity BFR has several benefits to structures distal to the level of the tourniquet, but minimal research has been conducted to investigate the benefits to proximal structures. This study is aimed at examining the proximal effects of BFR training on …

Seeing Skin, Seeking Evidence: Lessons From A Dermatology Internship, Isabella Floyd

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Indoor tanning exposes individuals to artificial ultraviolet (UV) radiation through devices such as tanning beds and sunlamps, increasing the risk of skin damage and malignancy. Prior research suggests associations between indoor tanning and melanoma, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC), with potential variation based on age of initiation and cumulative exposure.

Purpose: The purpose of this literature review was to examine the association between indoor tanning and skin cancer risk, with a focus on age at first exposure, frequency, and duration of tanning bed use across melanoma, BCC, and SCC outcomes.

Methodology: A structured literature review …

Sex Differences In How Celebrity Crushes Bolster Self-Perceived Mate Value, Madyson M. King

Psychological Science Undergraduate Honors Theses

Previous research indicates that parasocial relationships provide surrogate connections for individuals to where they offer various psychological benefits. Some benefits include self-esteem and improved body image, which may be connected by such relationships facilitating attainment of one's ideal self. Given this benefit of social surrogacy, it could be possible that a vicarious romantic connection with a parasocial figure may similarly bolster one's mate value if that relationship were to move an individual closer to a personal ideal. We predicted that engagement with a celebrity crush would be associated with a heightened mate value. A community sample of men and women …

The Effects Of Cannabidiol (Cbd) On The Social, Cognitive, And Physical Facets Of Anxiety Sensitivity, Ezri Rathbun

Psychological Science Undergraduate Honors Theses

The current study investigated how repeated administration of 300mg of cannabidiol (CBD), when compared to a placebo, affects the social, cognitive, and physical facets of anxiety sensitivity (AS), a characteristic that reflects fear of the consequences of anxious arousal. Prior work suggests CBD may have anxiolytic effects that may be specific to the social aspects of anxiety. Thus, it was hypothesized that, that, relative to placebo, CBD would reduce self-reported AS-social concerns, but not AS-cognitive or AS-physical concerns, compared to baseline. Participants (N= 79; 52 women; M_age = 22.06) with elevated perceived stress were randomly assigned to 14 …

Amusement In The Absence Of Empathy: Psychopathy In Relation To The Use And Appreciation Of Dark Humor, Jolie A. Brewer

Psychological Science Undergraduate Honors Theses

Although humor functions to foster integration between individuals, not all types of humor are equally appreciated by everyone. Some forms of humor are controversial, which limits their appreciation to specific contexts and potentially to specific people. One form of humor that may meet this definition is dark humor. Production of dark humor could imply that the humorist is disinterested in conventional social situations while similarly conveying an exploitative intention. Given that individuals who exhibit heightened levels of psychopathic personality traits also have a relative disinterest in adhering to social norms, it could be possible that psychopathy is associated with a …

Avoiding Pathogens Or Avoiding People? Pathogen Avoidance, Pathogen-Specific Stereotypes, And Intergroup Bias Toward South Asians, Aashvi Dahiya

Psychological Science Undergraduate Honors Theses

People are motivated to avoid pathogens because infection poses serious risks (e.g., illness, death). Pathogen avoidance often relies on indirect cues and stereotypes—like appearance or group membership—to identify potential pathogen threats. A large body of literature has linked pathogen avoidance to intergroup bias, but recent work suggests that this link may vary across social groups. In particular, pathogen avoidance may be more strongly associated with intergroup bias toward groups specifically linked to pathogen-specific stereotypes. The present study examined whether pathogen-specific stereotype endorsement moderates the relationship between pathogen avoidance and intergroup bias toward South Asians. A sample of 684 participants completed …

Evaluating The Impact Of Intercropping Vegetables And Cut Flowers On Yield And Conservation Biological Control, Alliance Igiraneza

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Specialty crops such as vegetables are some of the most susceptible to yield losses and increased management difficulty over time due to pests. One of the potential solutions to this problem, which aims at ensuring the sustainability of the sector, is using conservation biological control practices such as intercropping to increase diversity, while maintaining the economic feasibility and profitability of the system. This study was conducted to evaluate the impact of this management practice using Bell pepper (Capsicum annuum var. King Arthur) as the main crop, intercropped with flowers including zinnia (Zinnia elegans var. Benary’s Giant), sunflower ( …

Overview: Neuroscience And The Law, John M. Conley, Rami Major

North Carolina Law Review

No abstract provided.

Off-Label Neuroimaging, Jane Campbell Moriarty

North Carolina Law Review

No abstract provided.

Legal And Regulatory Considerations For Post-Trial Access To Maintenance Of Beneficial Investigational Neural Devices, Alexandra L. Foulkes, Erika Versalovic, Amanda R. Merner, Gabriel Lázaro-Muñoz

North Carolina Law Review

No abstract provided.

Memoir: The Brain, Neuroethics, And Bioethics, Leslie C. Griffin

North Carolina Law Review

No abstract provided.

Soil Property Responses To Push-Pull Cropping In East Africa, Grace Mercy Amboka, Mattias Jonsson, Celina Apel, David Meinhof, Adomas Liepa, Frank Chidawanyika, Andargachew Detebo, Felipe Librán-Embid, Emily A. Martin, Ingolf Steffan-Dewenter, Marcell K. Peters, Jie Zhang, Michael Thiel, Michael Otim, James Mugisha, Ghebremedhin Belay Bahta, Fredah Maina, Alice Murage, Benjamin Feit, A. Sigrun Dahlin

All Peer-Reviewed Publications

Push-pull technology is increasingly promoted in sub-Saharan Africa, particularly for pest management and enhancing crop productivity. However, its influence on soil properties remains understudied, despite its potential implications for soil health and sustainable soil fertility management. This study examines soil properties in push-pull and conventional non-push-pull cropping systems. Soil samples were collected from push-pull and conventional plots in Ethiopia, Kenya, Rwanda, and Uganda. We examined the associations between soil physicochemical properties and cropping systems, along with key components of push-pull, namely Desmodium coverage and plot age, and manure and mineral fertiliser application. Overall, there were a few differences in soil …

Identification, Pathogenicity, And Fungicide Sensitivity Of Itersonilia Perplexans Associated With Petal Spot Of Gerbera Cut Flowers In Colombia, Matheus Beger

All Theses

Petal diseases significantly affect gerbera cut flower production, as minor visual damage renders flowers unmarketable. Among those pathogens causing petal spots, Itersonilia perplexans affects some Asteraceae plants. However, this pathogen's impact on Colombian gerbera remains poorly studied. This study was designed to fill four gaps: molecular identification of Colombian isolates, confirmation of pathogenicity, standardized culture media, and fungicide sensitivity data. Four objectives were pursued: (i) isolate and identify the causal agent through sequencing the Internal Transcribed Spacer, Small Subunit and Large Subunit from the rDNA; (ii) evaluate pathogenicity on detached gerbera petals; (iii) identify optimal culture media for I. perplexans …

Developing Aero-Floating Treatment Wetland (Aeroftw) Scaffolds: A Non-Plastic Alternative To Conventional Plastic-Based Ftws, Ada C. Montoya Gomez

All Theses

This research was conducted to explore the possibility of constructing floating treatment wetlands (FTWs) without using plastic materials. FTWs are floating platforms that hold plants on the water’s surface, letting roots dangle within the water column, to help remove contaminants from contaminated water, especially in stormwater ponds. Many conventional FTWs are made with plastic components, such as mats and plastic cup containers, which can release microplastics into the environment over time. The goal of this project was to design and test a new type of FTW that does not depend on plastics to support FTW flotation. The study took place …

Disruption Of Energy Homeostasis By Chemical Mixtures Containing Persistent Pollutants In Hepg2 And C2c12 Cells, Morgan Jacobellis

All Theses

The Environmental Influences on Child Health Outcomes Fetal Growth Studies (ECHO-FGS) birth cohort data was used to identify chemical mixtures associated with adverse outcomes. This biomonitoring study associated specific chemical mixtures in maternal serum with low birth weight or childhood obesity (Pearce et al., 2021). Mixture Profiles 1, 3, and 4, comprised of different observed concentrations of DDE, PCB153, BDE47, and PFOS were prioritized. Mixtures were tested to determine whether they perturbed mitochondrial metabolism and energy sensing pathways. The purpose of this study was to elucidate a potential mechanism linking maternal exposure to mixtures containing persistent organic pollutants (POPs) to …

Estimation Of The Mechanical Properties Of South Carolina Timber Piles Using Non-Destructive Evaluation Methods And Experimentally-Informed Models, Aashish Sapkota

All Theses

South Carolina has about 2,600 bridges that are supported by nearly 75,000 timber piles. They are increasingly vulnerable to biological decay, cracking and impact damages after decades of service. Current inspection methods used by the South Carolina Department of Transportation (SCDOT), such as hammer sounding and awl probing, are labor-intensive and expensive. This study investigated non-destructive evaluation (NDE) methods, including micro-resistance drilling and stress wave timing, as alternatives for assessing timber pile condition.

Ten timber piles were collected from two South Carolina bridges, and their above-grade portions were cut into 40 specimens approximately 13 to 15 inches long. Specimens were …

Between Home And Hallway: Does School Discipline And Parental Incarceration Moderate Academic Outcomes Among Justice Involved Youth?, Morgan M. Hamer

All Theses

This study examines the relationship between parental justice contact, school disciplinary action, and academic performance of juvenile justice involved youth. Prior research has found youth with parents with justice system contact and juvenile justice involved youth to be vulnerable populations. Specifically, this study examines how a youthful offender with at least one parent with justice system contact performs academically, and if this relationship is moderated by school disciplinary action. Using quantitative data from the baseline wave of the Pathways to Desistance Study (Mulvey et. al, 2004), an ordered logistic regression analysis was employed to assess whether parental justice contact predicts …

Fluorescence-Based Quantification Of Hepatic Ldl Uptake And Donor Hepatocyte Engraftment Using Atto 700–Labeled Ldl, Victor Agustin Cortes Flores

All Theses

Familial hypercholesterolemia (FH) is an inherited disorder characterized by elevated low-density lipoprotein cholesterol (LDL-C) that increases the risk of premature atherosclerotic cardiovascular disease. In severe FH, including low-density lipoprotein receptor (LDLR), hepatic LDL clearance is profoundly impaired and many lipid lowering treatment strategies have limited effectiveness. Current advances in ex vivo CRISPR–Cas9 hepatocyte gene editing in vivo and ex vivo approaches for treatment of FH are under development.

However, a central barrier to translation is the ability to quantitatively measure the percentage of healthy gen edited hepatocytes in the liver while simultaneously assessing functional hepatic LDL handling. This thesis establishes …

Forest Overstory Mortality & Recruitment Patterns Eight Years Following Wildfire In The Southern Appalachians, Ruth Cumberland

All Theses

In this study, we investigated patterns of forest overstory mortality and recruitment eight years after wildfire in a large wildfire site the Southern Appalachians, a topic that has not been thoroughly investigated to date. With evidence that pre-fire drought promotes post-fire mortality through impaired physiological function and increased fuel consumption, unknown patterns following wildfire are important to study under shifting climate and land-use conditions. In Chapter 1, three areas of interest were investigated: (a) functional group mortality response to wildfire effects, (b) temporal differences in early (1-3 years) and late (5-8 years) periods of delayed forest overstory mortality patterns following …

Polydactyl Precursors: Insights Into Early Tetrapod Locomotion From Polydactyl American Alligators, Trevor P. Brewington

All Theses

Several of the earliest tetrapod lineages exhibited polydactyl limbs, with seven or eight digits per limb rather than the typical five or fewer seen in extant lineages. How these digit configurations might have been used during terrestrial locomotion is unclear, given the lack of living models in which their performance can be studied and limited evidence from fossil trackways. However, polydactyly occasionally appears in natural populations of American alligators (Alligator mississippiensis), animals with body plans that broadly resemble those of early tetrapods. To test how polydactyl limbs similar to those of early tetrapods might have functioned on land, …

Modeling Repeated Evolution Of Polygenic Traits, Marshall N. Hoskins

All Theses

Understanding the genetic composition of adaptive evolution is a longstanding and primary goal of evolutionary genetics. Despite many advances in our knowledge of trait adaptation, it remains unclear how demographic changes and repeated selection might alter the expected genetic architecture of adaptation. We used forward-in-time genetic simulations to test and observe the effects of opposing, repeated selection regimes on a polygenic trait in populations with and without changes in demography to better understand the genetic alleles that underlie polygenic adaptation. To further illuminate how natural populations might evolve, we investigated the impact of mutation effect size, the role of dominant/recessive …