Digital Commons Network^™

“Thanks For The [Land] Acknowledgement, Now What?”: Settler Histories And Decolonial Futures At Cal Poly Humboldt’S Schatz Tree Farm, Sangeeta Sarkar

Cal Poly Humboldt theses and projects

As California’s newest polytechnic university, Cal Poly Humboldt is often lauded for its Indigenous-facing programming and commitments to Indigenous peoples. In recent years, Native American Studies faculty, staff, and students, alongside Indigenous community partners, have led conversations about Cal Poly Humboldt meaningfully supporting tribal sovereignty by returning land to Native nations. As Cutcha Risling Baldy summarized in a research interview, “Thanks for the [land] acknowledgement, now what?” (2024, personal interview). However, though Cal Poly Humboldt has made various land acknowledgements and references to Indigenous peoples in its university policies, conversations about #LandBack have been met with resistance from the university. …

Can Dyslexia Diagnosis Induce A Stereotype Threat Effect? A Literature Review And Research Proposal, David H. Harris

Cal Poly Humboldt theses and projects

Dyslexia is a recognized psychiatric diagnosis in the DSM-5, categorized as a specific language disorder. Dyslexia is a hidden disability that affects how individuals process auditory and visual information. Many people have heard of dyslexia but it is largely misunderstood, even by educational professionals, and its general association with learning disability can be the basis for negative stereotyping and discrimination of people with dyslexia. The ‘Stereotype threat effect’ is a term from social psychology research referring to situations where one’s performance on a task is influenced by their identification with a social group that has a well-known stereotype about their …

Testosterone Reactivity And Parental Care Motivation In Men As A Function Of Parental Status, Nathan Boone

Cal Poly Humboldt theses and projects

Paternal investment and caregiving quality have lasting impacts on children's well-being. Children with sensitive, involved fathers typically develop more secure attachments and have fewer behavioral and psychological problems than children with less sensitive and involved fathers. While the importance of fathers’ engagement with their children is well established, the biological mechanisms that underpin paternal behavior are not fully understood. Previous research has found that baseline testosterone levels and testosterone reactivity to infant stimuli are both relevant predictors of paternal sensitivity. Short-term decreases in testosterone in nurturant contexts, and short-term increases in testosterone in challenging contexts have both been linked to …

Goal Setting In Sleep And Nutrition To Improve Perceived Performance In Active College Students, Cameron F. Timmons

Cal Poly Humboldt theses and projects

This study looked at goal setting in sleep and nutrition on healthy active college students aimed to improve their perceived performance, resting metabolic rate, body composition, and overall well-being. The six-week-long intervention had two groups: a control (n=5) and intervention group (n=6). Both groups received an initial coaching session and guidance for self-motivated online goal setting, completed weekly check-ins asking about their sleep and nutrition quality and quantity, and perceived performance, then they would set small goals aimed at improving their sleep and nutrition. The control group set their own goals every week with their online weekly check-ins, and the …

True Crime Podcasts As A Scene Of Feminist Reckoning: A Comparative Analysis Of My Favorite Murder And Sistas Who Kill, Rachel C.C. Matteri

Cal Poly Humboldt theses and projects

This research examines the cultural impact and ethical implications of true crime podcasts (TCPs). In recent years, TCPs have become a powerful cultural force, with White women often emerging as the primary storytellers and most visible participants in the genre. Their dominance in this space is not neutral and it carries representational weight. It explores the potential for feminist activity made possible by the auditory, self-publishing genre of podcasting. This work focuses on the buddy-comedy subgenre of TCPs. The concerns of this text are that TCPs are dominated by White feminist values and are not an intersectional feminist project. Textual …

Effects Of Teacher Reinforcements On Student Outcomes In Adapted Physical Education: A Meta-Analysis, Yaxeny Moreno

Cal Poly Humboldt theses and projects

The primary goal is to review the influence of reinforcement strategies in Physical Education (PE) and Adapted Physical Education (APE) settings, focusing on students with disabilities with the ages of 3-22. Reinforcement strategies, such as positive reinforcement/feedback, token economies, verbal praise, tangible rewards, and additional strategies are essential for fostering engagement and skill development. Literature has provided evidence and results to highlight the importance of applying evidence-based reinforcement strategies to which support the behavioral, social, and physical development of students in both Physical Education and Adapted P.E. settings. The purpose of this study was to review and analyze existing literature …

Exploring The Placebo Effect On The Cortisol Stress Response, Povheng Yam

Cal Poly Humboldt theses and projects

The placebo effect is well-studied on pain perception and is often observed to have a pain-reducing effect in patients. A few studies suggest that the placebo effect can influence physiological changes in people. To date, not many studies have examined the placebo effect on stress; thus, the current study explored the placebo effect on participants’ cortisol stress response and self-reported stress while undergoing a modified acute stress task, the Sing-a-Song Stress Test (SSST). The current study includes 44 participants (22 in the control group and 22 in the treatment group). A deceptive stress-reducing tincture (filled with water) was used as …

Lineation To Liberation: The Transformative Power Of Poetic Rhetoric, Amber Rae Alvarez

Cal Poly Humboldt theses and projects

This project explores the transformative power of poetic rhetoric and examines how poetry as a form of expressive art serves as a means of reclamation in the aftermath of encounters with the American criminal justice system. I contend that poetry provides a space where folks can reimagine (and reclaim) their identities, asserting their agency in empowering and authentic ways. Taking a Cultural Studies and Critical Prison Studies informed approach, this project engages the concept of lineation to liberation to conduct a close reading analysis of artist (Reginald) Dwayne Betts’ poetry. Betts’ work not only provides a powerful example of how …

Facilitating On-Task Behavior In Physical Education For Learners With Asd Through Special Interest Modified Materials: Antecedent-Based Intervention, Gary Smith

Cal Poly Humboldt theses and projects

Children with Autism Spectrum Disorder (ASD) are affected in the areas of social skills, communication, and restrictive and repetitive behaviors that can lead to barriers in accessing physical education (PE). School-based PE helps children learn how to develop the knowledge, skills, and confidence to live physically active lifestyles. The purpose of this current study is to implement an antecedent based intervention using special interest materials to increase on task and engagement in learners with ASD in PE activities. The intervention showed modest to minimal improvements in on-task behavior and performance for two of the three participants, with high variability and …

An Analysis Of Uv Disinfection Of Municipal Wastewater Following Natural Treatment Systems, Jonathan Andrew Kirchubel

Cal Poly Humboldt theses and projects

On January 30, 2024, the City of Arcata replaced chlorine with ultraviolet (UV) irradiation as its disinfection method for treating its wastewater prior to discharging to Humboldt Bay. The Arcata wastewater treatment facility (AWTF) utilizes natural treatment systems for treating its secondary effluent, which can provide issues for UV disinfection through variance in turbidity, total suspended solids (TSS), pH, humic acids, and color. This project aimed to identify whether the water quality characteristics of natural treatment systems in the AWTF would impact UV disinfection of municipal wastewater.

Thirty-one sampling periods occurred between June 8, 2024, and March 1, 2025, recording …

“We Weren't Just Reading About Adventures; We Were Living Them”: Immersion, Transgressive Play, And Dungeons & Dragons, Nicolas Poulter

Cal Poly Humboldt theses and projects

Dungeons & Dragons is a game that has existed since 1974 with a singular focus: to tell epic stories with your friends. Currently on its 5th edition of the game, the ability to tell stories has been highlighted like never before. With an emphasis on storytelling and collaboration, there are bound to be moments that are difficult. These are called transgressive play experiences. This project will endeavor to explain how D&D, by design, is the perfect game to engage in transgressive play experiences. Because of this, I believe future projects studying benevolent transgressive play should consider D&D as the medium …

Breaking Barriers: The First-Generation Experience In Pursuit Of The American Dream, Milagros Ortega

Cal Poly Humboldt theses and projects

This project examines the common misconceptions surrounding First-Generation Latino college students and challenges the dominant narrative that portrays them as unprepared, unsupported, and unmotivated. Through narrative and content analysis of the short films, Ni de Aquí, Ni de Allá and Turns in the Road, this project explores the overlapping challenges that complicate their educational journeys. These challenges, financial instability, lack of guidance, and sociocultural dissonance, represent three core barriers commonly faced by first-generation Latino college students. Guided by theoretical frameworks such as the Immigrant Optimism Hypothesis, W.E.B Du Bois’ theory of double consciousness, Gloria Anzaldúa’s concept of Nepantla, and Yosso’s …

Investigating Fish Communities As Part Of The Food Web In Artificial Tidal Wetland Ponds Of Humboldt Bay, Ca, Lily M. Olmo

Cal Poly Humboldt theses and projects

In the face of global wetland loss, artificially created wetlands have the potential to restore ecosystem services for humans while also providing habitat for fish and wildlife. This study explored fish communities in three understudied artificial wetland ponds that are connected to Humboldt Bay in northern California and known to be important wildlife foraging areas. The objectives of this research were to 1) Characterize the environmental conditions of each pond, 2) Calculate the relative catch, richness, diversity, and biomass of fish in each pond, 3) Describe the movement of fish into and out of the ponds with the tides, and …

Factors Associated With The Biomass Of Yellowfin Tuna, Thunnus Albacares, At Fixed Fish Aggregating Devices (Fads) In The Galapagos Islands, Sarah Payton Moreau

Cal Poly Humboldt theses and projects

The Galapagos Marine Reserve was established in 1998 to protect biodiversity and reduce fishing pressure by only allowing artisanal fishing. Despite its small scale, artisanal fishing has impacted vulnerable, slow-growing species. As a result, managers are attempting to redirect fishing toward faster-growing, migratory species like yellowfin tuna. To support this shift, four fixed fish aggregating devices (FADs) were deployed in 2016 off Isabela, Floreana, and San Cristóbal islands. These anchored buoys were equipped with solar-powered sonars to estimate pelagic fish biomass,primarily yellowfin tuna,within the upper 100 meters of the water column. Although data was collected at four FADs, the analysis …

Estimating Mariana Monitor (Varanus Tsukamotoi) Density With Multiple Methods On Islan Dåno’, Guam, And Its Relevance To Guam Rail (Hypotaenidia Owstoni) Conservation, Jack T. Christie

Cal Poly Humboldt theses and projects

The Mariana monitor (Varanus tsukamotoi), or hilitiai, is a medium-sized varanid lizard found throughout the Mariana islands. On Islan Dåno’, a small islet off the southwest coast of Guam, hilitai coexist with one of the rarest birds in the world, the Guam rail (Hypotaenidia oswtoni), or ko’ko’, which were introduced to the island in 2010. Since 2009, hilitai have been lethally removed from the island to reduce possible predation on ko’ko’. After 15 years of removal efforts, I sought to 1) estimate the abundance and density of hiltai, 2) assess the effect of removal effort and …

Examining The Effects Of Songbird Nest Boxes And Habitat On Avian And Arthropod Communities In A Vineyard Ecosystem, Eleanor Macdonald

Cal Poly Humboldt theses and projects

Agricultural expansion threatens biodiversity, but integrating insectivorous birds into vineyard ecosystems may support both conservation and ecosystem services. We tested how nest boxes and habitat composition influence avian and arthropod communities in Napa Valley vineyards using a before-after, control-impact experiment across 20 sites. During the 2023-2024 breeding seasons we conducted avian point counts, sampled key pest and beneficial arthropods, and collected fecal samples from adult and nestling tree swallows (Tachycineta bicolor) and western bluebirds (Sialia mexicana) to detect vineyard pest DNA. Nest boxes significantly increased swallow and bluebird abundance within one year; swallow responses were strongest …

Wait... Homework Can Be Fun?! A Pilot Homework System Study, Caroline Brock

Cal Poly Humboldt theses and projects

Homework has been a long-debated topic in schools. Regardless of where people stand on the issue, the evidence shows that quality homework can be an effective tool to help students be successful in school. Beyond academics, homework can also be used as a tool to help students develop important foundational study skills that are critical for future success. But how can school districts get all stakeholders behind a homework system if they do not see the value of homework, or if the homework is a point of individual or familial stress. Through an action research project using mixed methods, parents …

The Impact Of Guided Goal Setting On Mood And Exercise Performance In College-Age Active Individuals, Payton R. Heaney

Cal Poly Humboldt theses and projects

Mental health challenges are common in college students and student athletes, yet finding accessible and effective methods to improve mood and mood disorders remains under-researched. Mood is closely related to perceived performance, making mood improvements even more important for active college individuals. This study examined whether guided goal setting and health coaching could significantly improve mood as well as perceived performance. Sleep and nutrition were targeted as key factors due to their well-researched connection to mood. Participants of this study were 25 healthy active college individuals aged 18-35. The sports and activities represented in this study were a mix of …

Curriculum Addressing Recidivism: A Case Study Of Project Rebound’S Youth Empowerment Program, Julie Stewart

Cal Poly Humboldt theses and projects

Providing effective rehabilitation for justice-involved youth is an increasing priority within the American social justice system, yet remains a significant challenge. The Youth Empowerment Program (YEP) at Cal Poly Humboldt uses curriculum to support learning objectives related to emotional intelligence, critical thinking, and emotional maturation, with the broader goal of reducing recidivism among youth in Northern California. Although curriculum design is widely understood in education as essential for effective learning, limited research examines how youth rehabilitation programs in carceral settings use curriculum to address the developmental and learning needs of participants. Using a case study methodology, this research examines how …

Looking At God, Looking At America: Examining The Relationship Between Beliefs About God And Support For Social Movements And Government Policies, Tess Starman Phd

Sociology: Faculty Publications

Scholars have long studied the relationship between religion and politics. This study aims to add to the conversation on this relationship by assessing a unique religiosity measure, that of beliefs about the character of God. Utilizing the 2021 Values and Beliefs of the American Public (n=1,336), this study assesses how beliefs about God independently and comparatively impact support for government policies and social movements. Results show that the belief that God is active in the world has the greatest association with policy attitudes. Further, racial identity is a significant moderator for the relationship between belief that God is active and …

Recombinant Human Alpha-N-Acetylglucosamine-6-Sulfatase Delivered To Sanfilippo D Mice With Repeated Intracerebroventricular Injections Corrects Cns Pathology, Grant L. Austin, Feng Wang, Steven Q. Le, Alexander Sorensen, Shan Li, Lai C. Foong, Srikanth Singamsetty, Jill Wood, Tsui-Fen Chou, Patricia I. Dickson

2020-Current year OA Pubs

Mucopolysaccharidosis type IIID (MPS IIID; Sanfilippo D) is caused by biallelic pathogenic variants in N-acetylglucosamine-6-sulfatase (GNS), which participates in catabolism of heparan sulfate (HS) glycosaminoglycans. Characterization of MPS IIID disease at a cellular level has not been robustly achieved. We used unbiased quantitative proteomics to establish a cellular phenotype for MPS IIID mice. Recombinant human GNS (rhGNS), a variant of which previously demonstrated single dose efficacy in MPS IIID human fibroblasts and in MPS IIID neonatal mice, was used to establish a repeat dosing schedule to treat MPS IIID mice. Adult Gns KO mice or heterozygous carriers were treated via …

Patient Stratification By Genetic Risk In Alzheimer's Disease Is Only Effective In The Presence Of Phenotypic Heterogeneity, Jack Euesden, Muhammad Ali, Chloe Robins, Praveen Surendran, Padhraig Gormley, Alzheimer’S Disease Neuroimaging Initiative, David Pulford, Carlos Cruchaga

2020-Current year OA Pubs

Case-only designs in longitudinal cohorts are a valuable resource for identifying disease-relevant genes, pathways, and novel targets influencing disease progression. This is particularly relevant in Alzheimer's disease (AD), where longitudinal cohorts measure disease "progression," defined by rate of cognitive decline. Few of the identified drug targets for AD have been clinically tractable, and phenotypic heterogeneity is an obstacle to both clinical research and basic science. In four cohorts (n = 7241), we performed genome-wide association studies (GWAS) and Mendelian randomization (MR) to discover novel targets associated with progression and assess causal relationships. We tested opportunities for patient stratification by deriving …

Improving Outcomes Of Single-Sided Deaf Cochlear Implant Users By Reducing Interaural Frequency And Loudness Mismatches Through Device Programming, Laura K Holden, Rosalie M Uchanski, Noël Y Dwyer, Ruth M Reeder, Timothy A Holden, Jill B Firszt

2020-Current year OA Pubs

The study aimed to improve outcomes in Nucleus cochlear implant (CI) recipients with single-sided deafness (SSD) by reducing interaural frequency and loudness mismatches through device programming. In Experiment 1a, a modified frequency allocation table (FAT) was created to better match the tonotopicity of the contralateral ear and reduce interaural frequency mismatch. Twenty experienced SSD-CI users completed localization and speech recognition tests with their everyday FAT. Tests were repeated after 6 weeks' use of the modified FAT. Participants compared both FATs for 2 weeks before being tested again with each. For 10 newly implanted SSD-CI recipients (Experiment 1b), Group A was …

The Equitability Of Virtual Public High School Education In Urban School District, Carissa Jury

Murray State Theses and Dissertations

Virtual education has become an integral component of modern high school education, particularly in urban districts where diverse student populations require flexible and equitable learning environments. This qualitative study explores the equitability of virtual public high school education in an urban school district, focusing on accessibility, student experiences, and policy implications. Using social constructivism and ecological systems' theory as theoretical frameworks, this research investigates factors influencing equitable outcomes, including access to technology, teacher and community support, and socioeconomic status. Data was collected through structured interviews and focus groups with students and parents engaged in virtual education. Key findings indicate that …

Spatial Analysis Of American Chestnut (Castanea Dentata) Distribution And Ecology In Kentucky’S Federal Lands, Jacob Raymond Pease

Murray State Theses and Dissertations

Anthropogenic factors have been the cause of the decline of tree species across the globe. From unsustainable logging and development to disease and improper management, threats to forests have taken their toll. The American chestnut (Castanea dentata) was once an integral basal tree species in Appalachian forests, but chestnut blight drove the species to functional extinction by the mid-1900s. The recent creation of genetically modified chestnuts gives hope for future restoration of the species throughout its historical range. Despite blight resistance, effective restoration will require optimal site selection for finding and planting chestnuts, which will maximize limited resources. …

The Link Between Poor Student Reading Proficiency And College And Career Readiness, James D. Kirkland Iii

Murray State Theses and Dissertations

The ability to read proficiently is a skill often considered necessary for the success of an individual while in school and after graduating from high school. Although reading proficiency plays a large role in an individual's success, many students in our nation’s schools struggle to read and comprehend the texts they are presented with in their academic courses. The purpose of this research study was to determine whether a link existed between the reading proficiency and college and career readiness of high school agriculture students. The study used a mixed methods approach that collected both qualitative and quantitative data to …

Teachers Stay And Go: The Impacts Of Agriculture Education Teacher Retention In Georgia, Alisha Richardson, Kristie Guffey

Murray State Theses and Dissertations

Agricultural education teachers are vital in shaping students' academic and social development while supporting Georgia’s largest economic sector. Despite their importance, the retention of qualified agriculture teachers has remained a persistent challenge since the 1970s (Camp, 1995). This study examined the factors influencing teacher retention in Georgia’s agricultural education programs, to identify actionable strategies to reduce attrition. Findings revealed that supportive workplace environments, strong student relationships, professional learning communities, and mentorship opportunities are key motivators for teacher longevity. Financial incentives and targeted professional development emerged as effective retention tools (Guffey & Young, 2020). In contrast, high levels of stress, particularly …

The Representation Of Feminine Beauty In Generative Artificial Intelligence Models, Haley R. Stacy

Murray State Theses and Dissertations

As Artificial Intelligence (AI) technology advances, its influence on media and societal perceptions becomes increasingly significant. This dissertation explores how popular generative visual AI models represent women and the implications for racial and body type inclusivity. This study examines women’s perceptions of AI-generated representations. Two primary research questions are being explored: (1) How do AI-generated algorithms represent women in visual outputs when prompted with broad beauty-related keywords? (2) How do women perceive their representation in these AI-generated visual outputs? Through a detailed analysis of AI-generated imagery, the research uncovers implicit and explicit biases within these systems. The research also gathered …

Managing Campus Dissent: An Assessment Of University Responses To Pro-Palestinian Protests, Kathryn S. Walker

Murray State Theses and Dissertations

University leaders face challenges navigating student dissent and effectively upholding free speech while encouraging students to view the world from a new perspective. Higher education institutions employ a variety of strategies to handle campus crises and mitigate negative perceptions that may arise. This qualitative research study provides insight into the crisis communication strategies employed by university administrators at ten institutions with the highest number of pro-Palestinian protest days from October 7, 2023, to May 29, 2024, through the analysis of university statements and student newspaper responses. Campus leaders found themselves in a challenging position, unable to satisfy all constituencies. Each …

The Impact Of The Implementation Of The Interconnected Systems Framework (Isf) On Educators, Kayla Jones

Murray State Theses and Dissertations

Amid growing concerns around teacher retention and educator job satisfaction, this study explored how system-level frameworks, particularly the Interconnected System Framework (ISF), could influence key teacher outcomes. While the ISF has been widely associated with improved student outcomes, this research investigated its potential to enhance educator experiences, focusing on working conditions, retention rates, and school climate. Quantitative analysis revealed that schools implementing the ISF or PBIS reported significantly more favorable working conditions and school climate compared to non-implementing schools. Although teacher retention rates did not significantly differ across implementation types, notable variability within the non-implementing group suggests a need for …