Digital Commons Network^™

Identifying Success Strategies For Hmong American Students In Higher Education, Jason Xiong

University of the Pacific Theses and Dissertations

Hmong Americans' postsecondary completion rates remain low when compared to other Asian ethnic groups. As the Hmong population continues to grow, so does the need for intervention to increase the total number of postsecondary graduates. Many Hmong Americans are first-generation college students and continue to face challenges and barriers that prevent them from being successful in higher education. “Forty-seven and a half percent of Hmong adults (25 years or older) reported having attended college, but not earning a degree” (National Commission on Asian American and Pacific Islander Research in Education, 2011). Without a college degree, Hmong Americans face limited resources …

Examining Attention To Leadership When Hiring School Administrators In A High Poverty, Ethnically Diverse School District: A Case Study, Veronica A. Tigert

University of the Pacific Theses and Dissertations

The purpose of this mixed methods case study was to understand the hiring practices of a school district when considering a principal and how the school district attends to leadership within those hiring practices. The central premise of the study was leadership matters and is second to teaching in student achievement. However, the historical record paints a picture of less than adequate attention to effective hiring practices and a limited scope when addressing leadership. A small school district in California was selected to participate in the study. The design incorporated mixed methods to analyze the hiring practices through a survey …

A New Era Of Policing: Uncovering Ways Officers Believe Community Relations Can Be Restored, Bradi Kai Kooyman

University of the Pacific Theses and Dissertations

The present study qualitatively investigated law enforcement officers’ opinions on creating more positive relationships with community members and how news media can play a role in deteriorating community attitudes and perceptions of law enforcement officers. A total of six participants were selected to participate in a forty-five-minute interview. Participants were asked questions regarding positive and negative factors in their relationship with their communities, local and national law enforcement portrayals in news media, reforms needed within law enforcement, beliefs toward community policing, and factors that lead to success in their relationships with citizens. This study discovered that building trust, implementing community …

Singing In The Key Of Life, Georgia Braun Mcbride Agerton

University of the Pacific Theses and Dissertations

Singing is often used in music therapy sessions. It can provide physiological, psychological, and interpersonal benefits, and music therapists use it to address clinical goals including improved blood oxygenation, emotional expression, and increased interpersonal engagement between clients and their family members. Singing uniquely combines musicality, the body as the instrument, and meaningful words. Furthermore, the voice is a personal instrument, which makes musical engagement accessible to many people. Though singing can provide various benefits, many people experience singing negatively, especially when singing with an exposed voice, i.e., when others can hear their singing voice. Whidden (2015) found that one can …

“I’M Listening, Auntie” A Study On The Experiences Of Black Women Earning A Doctorate Degree In Education At A California State University, Parker Rugeley-Valle

University of the Pacific Theses and Dissertations

Black women face barriers to higher education that include systemic racism and sexism that lead to self–doubt, discrimination, and familial and community support. They battle barriers to and within academia through the intersectionality of their sex and racial identity groups. As a response to the barriers they face in higher education, the purpose of this study was to explore the experiences of Black women navigating a doctoral program in education at a California State University. To explore the experiences of the participants, I used a qualitative study with a Heideggerian phenomenological approach and a Black feminist lens. A three­–question interview, …

How Instructional Strategies Impact Mathematics Self-Efficacy And Learning: Middle School Student Perceptions, Roni R. Herndon

University of the Pacific Theses and Dissertations

This research focuses on middle schools where more than 90% of the students are socioeconomically disadvantaged and where mathematics scores are below the state and national average. The study was conducted to better understand how students experience various instructional strategies and perceive these classroom practices to impact their learning and self-efficacy in mathematics. A hybrid mixed methods research design, with both embedded and explanatory sequential components, was employed. Quantitative results are based on survey responses from 94 seventh grade students. Qualitative results are based on five teacher and eight student interviews.

Informed by teacher interviews, the Instructional Strategies Impact Survey …

Utilization-Focused Evaluation On The Impact Of A Sports-Based Youth Development On Unaccompanied Youth Students, Eric Cortez

University of the Pacific Theses and Dissertations

Unaccompanied immigrant youth (UIY) face obstacles that can hinder their education in their host countries. Given that educational attainment can help interrupt intergenerational cycles of poverty, the examination of support systems for UIY is critical. This study examined the role of sports-based youth development (SBYD) programs in supporting UIY students using a utilization-focused evaluation. To do this, two groups’ high school graduation rates were compared: (a) UIY participating in an SBYD program and (b) UIY not participating in a SYBD program. In addition to this quantitative analysis, UIY were surveyed and interviewed to contextualize the results of the graduation rate …

A Dnak Chaperone System Connects Type Iv Pilus Activity To Polysaccharide Secretion In The Cyanobacterium Nostoc Punctiforme, Heather J. Mcdonald

University of the Pacific Theses and Dissertations

Type IV pili (T4P) systems are widely utilized among bacteria to power and direct surface motility. The production and secretion of a viscous polysaccharide to provide friction and resistance to the extended pilus structure is seen in several species of cyanobacteria including Nostoc punctiforme. The complex coregulation of polysaccharide secretion and T4P motor activity is not fully understood, although studies indicate a consistent relationship between functional motility and intact pathways of polysaccharide secretion and pilus extension in cyanobacteria. Using a combination of protein-protein interaction analysis, cytological studies, and comparative genomics this study proposes a theoretical mechanism for T4P motor influenced …

Chemically Mediated Algal-Bacterial Interactions: Promotion & Inhibition, Kara Talbott

University of the Pacific Theses and Dissertations

Algae-bacteria interactions range from mutualistic, Chlamydomonas reinhardtii (green algae) provides carbonate complexes for surface associated bacteria (SAB) and the bacteria in turn provide B-12 for the algae, to pathogenic, the presence of certain bacteria increases the incidence of bleaching in the algae. Algal natural products have been found to display the following activities: anti-fouling, anti-bacterial, anti-cancer, and anti-feedant. Separately, it has been well documented in the literature that algae mediate their SAB, also known as their microbiome, using natural products to attract and inhibit different bacterial strains. My graduate work builds on these findings; our hypothesis is that the algal-bacterial …

Influence Of Female Sex Hormones On Ghb Toxicokinetics And Regulation Of Mcts And Smcts, Hao Wei

University of the Pacific Theses and Dissertations

Gamma-hydroxybutyric acid (GHB) is an endogenous shorty chain fatty acid that is used clinically as Xyrem to treat narcolepsy. GHB is best known for its illicit use and abuse due to its sedative/hypnotic and euphoric effects. It is used in body building, for recreational use and sexual assault. Nonlinear toxicokinetics of GHB has been described in humans and rats with decreased total clearance at higher doses due to capacity-limited metabolism resulting in a higher plasma exposure. Renal clearance increases with increasing dose and becomes the major route of GHB elimination in overdose cases due to saturation of GHB metabolism. Proton- …

Remote Ambient Aerosols Found In The Southern Great Plains And Eastern North Atlantic: A Comprehensive Analysis Of Optical Behavior And Aerosol-Cloud Interaction, Daniel J. Bonanno

University of the Pacific Theses and Dissertations

The data presented in this thesis showcases the investigation of various aerosol types and the role they play in the hydrological system and global climate models. Long-range transport aerosols, including atmospheric soot, mineral dust, and ammonium sulfate, in addition to near-site sources such as secondary organic aerosols (SOAs), sea spray, aliphatic hydrocarbons, and other organics, are prioritized in the analysis of two separate remote field studies. Each of these campaigns revealed the juxtaposition between dry summer months and wet winter months, and the connection between seasonal variability and sample collection. Two spectromicroscopic techniques were used to elucidate chemical composition, morphology …

A Qualitative Study Of Understanding Female Navy Veterans’ Experiences With Representation And Inclusion In The U.S. Military, Antwanisha K. Williamson

University of the Pacific Theses and Dissertations

Research about women in the military helps to address the ongoing concerns about the lack of inclusion of female perspectives, which contributes to oppressive power dynamics and lack of women’s representation in practice, policy, and procedures. The problem this dissertation addressed is the lack of representation and inclusion of female perspectives regarding power and privilege that affect military practices, policies, and procedures. The purpose of this qualitative study was to understand female Navy veterans’ experiences with representation and inclusion in military practices, policies, and procedures. Applying a larger conceptual framing using radical feminism, liberal feminism, and critical theory helped to …

Language Development And Poverty: Considerations And Applications For Speech-Language Pathologists, Samantha Lynn Ehler

Honors Program Theses

Economics is one vital variable that can support or hinder the successful development and acquisition of language. A large body of research has shown that conditions of poverty often negatively impact a child’s language learning environment and brain development, resulting in poor language development and a high risk of speech and language disorders. Language development is a dynamic process that begins during the first years of life and is contingent on social interactions and safe predictable routines. A thorough examination of the relationship between familial financial standing and language development is the foundation for developing interventions that will minimize the …

Data Ethics And The Dilemma Created By Turing's Learning Machines, Jacob Kuhn

Honors Program Theses

The main purpose of this research is to shed light on the good and bad that has come about from the interaction of Big Data and Artificial Intelligence in society. Transparency with the public is paramount for the future of Artificial Intelligence. Without awareness, the public is blind to the parts of the Data Revolution that could help them or hinder them. The key question is what AI advancements are being made and what ethical problems do they pose to the general population? To help answer this question, it is best to examine the founding of Artificial Intelligence and the …

Exposure, Adaptation And Expectations: How They Affect Perception Of Foreign Accented Speech, Isabella Huddleston

Honors Program Theses

Understanding accented speech is becoming more and more prevalent in today’s society. The world is connected through technology allowing us to reach further than we ever have before. One challenge this presents is the necessity to communicate across languages. Even if an individual has learned another language proficiently, the speech they produce is influenced by their native language resulting in foreign accented speech (FAS). There now exists the need for understanding how FAS affects speech perception and uncovering ways to improve communication situations between native and nonnative communication partners.

Identification Of A Dna Polymerase Alpha Gene Sequence In Thermomyces Lanuginosus Fungus, Nathan Williams

Honors Program Theses

With cell growth being the main focus of our research, we chose to study DNA polymerase alpha. DNA polymerase alpha is likely to be involved in cell growth as it is the enzyme that starts DNA replication. Control of this enzyme might lead to decreased cell growth in cancer or increased cell growth in damaged spinal cord tissue. We chose the thermophilic fungus Thermomyces lanuginosus for the study of the enzyme due to the ability to compare the enzyme’s activity during fungal growth at different temperatures. Thermomyces exhibits rapid growth at high temperatures and slow growth at low temperatures. Studying …

Monitoring Archaeal Persistence In Cultivation, Payton Hall

Honors Program Theses

It was previously thought that microbes in the domain Archaea were only found in extreme environments such as hot thermal vents at the bottom of the ocean and hypersaline environments, but as scientists began to use environmental DNA to survey soil, they detected archaea from the phylum Thaumarchaeota in relatively benign environments including farm fields, forests, and prairies. In spite of their widespread global distribution, relatively few of these species have been grown in laboratory culture. It is now known that Thaumarchaeota play an important role in the nitrogen cycle because they can generate energy through ammonia-oxidation. To increase the …

Admittance Processes In Gifted Education And Their Influence On Equity, Rachel Wohlgemuth

Honors Program Theses

A gifted education program is present in most public schools throughout the country. The goal of these programs is to challenge academically advanced students more than they would be in a general education course. However, there are disparities within all types of gifted education; these disparities span race, socioeconomic status, gender. In this study, the focus was on the inequity present in gifted education and look at the admission processes that are used to identify and therefore serve gifted youth. I will look into policies in place in 15 states to find similarities and differences. The purpose of this study …

Investigation Into A Potential Dna Polymerase Of Thermomyces Lanuginosus, Kameron J. Kruger

Honors Program Theses

Thermomyces lanuginosus is a species of fungus with ever-expanding applications in the world of industrial chemistry. Primarily, this fungus is known for producing enzymes with a wide variety of industrial uses. These enzymes include xylanases, which are produced by T. lanuginosus in greater amounts than any other fungus (Mchunu et al., 2013). Xylanase is a degradative enzyme that breaks down hemicellulose, a key component of plant cell walls (Singh et al., 2003). Due to its stability over broad temperature and pH ranges, this enzyme serves many industrial purposes, primarily as a food additive and an alternative to chlorinecontaining compounds in …

Nature-Based Education: Expanding The Walls Of The Classroom, Halle Louise Kilburg

Honors Program Theses

Are the current practices of education one that best benefits a student? Every day, millions of children go to school. While there is a wide variety of what this experience may look like, there are common factors, such as sterile classroom environments, canned experiences, and dry lectures that often contribute to leaving students feeling burnt out, exhausted, and unmotivated. The purpose of this study was to explore how various schools use Nature-Based education to run their programs and the impact of this approach on students and teachers. For this study, four educators from three various programs were interviewed and asked …

Make A Foreigner Of Yourself: An Analysis Of The Dueling Critical Utopias Of The Dispossessed And Trouble On Triton, Anthony Michael Lowe

Cal Poly Humboldt theses and projects

The purpose of this project is to analyze the critical utopias of two sci-fi novels: The Dispossessed: An Ambiguous Utopia (1974) by Ursula K. Le Guin and Trouble on Triton: An Ambiguous Heterotopia (1976) by Samuel R. Delany. Both novels were published within two years of each other, with Delany rewriting his novel to intentionally put it into direct dialogue with Le Guin’s. This project will attempt to establish the landscape of utopian fiction, draw out this dialogue between these two grandmasters of the science fiction genre, and answer this question: “As a result of Delany positioning his novel in …

A Descriptive And Visual Analysis Of The North Coast Fall Prevention Survey Data, Mishell Lopez

Cal Poly Humboldt theses and projects

Older adults over 65 will double from 52.4 million in 2018 to 94.7 million in 2060. Among this aging group, falls affect one out of four older adults and are a critical economic concern for our American society, with yearly costs of $50 billion. In older adults, falling can result in negative consequences such as fear of falling, injuries, mobility restrictions, and loss of independence. California has one of the highest costs per fall ($4 billion annually) and a high percentage of adults who have fallen (30.6%) compared to the nation. Moreover, two of California’s northwest rural counties, Del Norte, …

Use Of Foreign Edna Tracers To Resolve Site- And Time-Specific Edna Distributions In Natural Streams, Braden A. Herman

Cal Poly Humboldt theses and projects

Substantial uncertainty in how to interpret eDNA observations motivates a need for a technique to effectively and efficiently measure of system- and time-specific eDNA distributions. Using a technique to robustly calibrate eDNA dynamics in a given system would improve established eDNA methods such as presence and absence and has the potential to refine estimates of organism abundance using eDNA concentration that are less well understood. Particles of eDNA are present in a wide variety of size and type resulting in varying transport dynamics, persistence, decay, among others. This variation likely makes eDNA transport more complex than that of conservative tracers …

Is The Area Postrema Resistant To The Anesthetic Effects Of Ms-222?, Austin T. Csiszar

Cal Poly Humboldt theses and projects

MS-222 is a common fish anesthetic that dampens neural activity by inhibiting neuronal voltage-gated sodium channels (Na_v) required for action potentials. Previous experiments conducted by our lab’s primary investigator using fluorescence calcium imaging in zebrafish neurons resulted in the observation that neurons in the area postrema (AP), a circumventricular organ located in the dorsal hindbrain, displayed prominent fluorescence intensity during MS-222 induced sedation. I used the genetically encoded calcium indicator GCaMP6s to conduct fluorescence calcium imaging with the goal of recording neural activity in the larval zebrafish area postrema and optic tectum to compare the anesthetic effects of …

Does Cleft Repair Surgery Restore Normal Visual And Neural Responses To Infant Faces?, Rachael Leanne Kee

Cal Poly Humboldt theses and projects

Infant faces readily capture our attention and elicit enhanced neural processing, likely due to their evolutionary importance in facilitating bonds with caregivers. Infant facial malformations are associated with a lower degree of parental investment and have been shown to negatively impact early infant-caregiver interactions. Cleft lip or cleft palate is a common facial malformation, estimated to affect 1 in 700 live births worldwide, that is associated with altered visual and neural processing as compared to normal infant faces. Importantly, it is not yet known how craniofacial repair surgery impacts responses to these faces. The current study uses eye tracking and …

Uncertainty, Parenting Attitudes, Risk Perceptions, And Covid-19 Vaccination Intentions, Zoë Royer

Cal Poly Humboldt theses and projects

The COVID-19 pandemic has had a significant impact on the lives of millions of people, particularly parents. Drawing on uncertainty-identity theory and research on intensive parenting attitudes, two studies sought to understand the effects of self-uncertainty, parenting beliefs, and perceived illness and vaccine side effect severity, on parental intentions to vaccinate children against COVID-19. We hypothesized that parents with intensive parenting attitudes would rely on their parenting identity to reduce uncertainty and make decisions about vaccinating their children. The results revealed that parents who perceived illness severity in unvaccinated children as high were more likely to vaccinate their children, while …

Effects Of Exergaming On Health And Fitness Outcomes For Students With Disabilities: A Meta-Analysis, Jason Abaya

Cal Poly Humboldt theses and projects

Background: The high prevalence of obesity in America can be attributed to the lack of resources and physical activity for students with disabilities. This meta-analysis presents how current literature on exergaming affects the Health Related Fitness, Skill Related Fitness, and Motor Skills of students with a diagnosed disability.

Method: The search strategy for this meta-analysis was to identify previous studies using specific keywords (e.g., Exergaming, Wii-Fit, VR, Physical Education, Adapted Physical Education). Studies were included and sorted based on inclusion and exclusion criteria.

Results: Based on 20 studies that met the inclusion criteria, there were increased fitness outs, however not …

The Effects Of Aquatic Programs On Students With Disabilities Fitness And Skill-Based Outcomes; A Meta-Analysis, Delaney Hughes

Cal Poly Humboldt theses and projects

The purpose of the meta-analysis was to determine the impact of aquatic-based interventions on health-related fitness and skill-based outcomes for children with disabilities. PRISMA guidelines were used to complete the procedures of the meta-analysis. Twenty-three studies met the inclusion criteria and results indicate that overall, aquatic programming likely positively affects students with disabilities and health-related fitness outcomes. Recommendations provide direction for future studies to help improve intervention results.

Macrolichen Inventory Of The Horse Mountain Botanical Area, Six Rivers National Forest, California, Usa, Sarah Norvell Conway

Cal Poly Humboldt theses and projects

Macrolichen diversity and community composition was determined for an area of high botanical interest in the Coast Ranges of Northern California – the Horse Mountain Botanical Area (HMBA) in Six Rivers National Forest. The Coast Ranges have been suggested to have high epiphytic macrolichen diversity, yet detailed site-specific macrolichen surveys are lacking for the area. Here we present comprehensive data on macrolichens of the HMBA integrated with environmental metadata at the landscape level. Twenty 0.4 ha sampling plots were positioned across the varying habitats of the HMBA and macrolichens were intensively sampled from all substrata. Out of 888 total collections, …

The Effects Of Post-Harvest Residue On Plantation Forest Soils And Early Growth Of Redwood And Douglas-Fir Seedlings In Humboldt County California, Robert W. Raibley

Cal Poly Humboldt theses and projects

Forest harvest residue (slash) usefulness has been up for debate among private timberland owners, public land managers, and the timber industry for decades. The disposal of slash, viewed as having low ecological value, has received considerable attention as wildfire risk has made burning it harder. In recent years, forest scientists and ecologists have recognized the importance of decaying wood and its relationship to forest growth and regeneration. At this site in Northern California, we looked at whether forest harvest residue enriches soil near slash windrows through soils coring and lab analyses, looking for primary limited nutrients nitrate (NO₃-N) …