Digital Commons Network^™

The Effects Of Disability Status And Employment Level In Shaping Employee Perceptions: A Vignette Study Of Employees Who Are Blind, Raymond Bennett

Master's Theses

This study sought to understand the impact of disability status and level of employment (i.e., supervisor or employee) on ratings of performance outcomes and legitimately earning one’s role. It was hypothesized that leaders with disability (LWD) would be rated as poorer performers compared to non-disabled leaders and that co-workers with disability (CWD) would be rated more favorably than LWD. It was also hypothesized that the perceived legitimacy of disability status would moderate the impact of disability status and employment level on performance outcomes. 102 participants read one of four vignettes describing an organization member they regularly interacted with and responded …

The Relationship Between Transformational Leadership And Affective Commitment And Intent To Leave The Organization: The Mediating Role Of Psychological Empowerment, Neiry Lara

Master's Theses

The leadership style of organizational leaders has important implications for organizations and their employees. Transformational leadership has been studied extensively due to the numerous positive outcomes. Unfortunately, not much research has focused on the mediating mechanism between transformational leadership and outcomes. Therefore, the present study explored the mediating role of psychological empowerment on the relationship between transformational leadership and the outcomes of affective organizational commitment and turnover intentions. It was hypothesized that psychological empowerment would act as a mediator between transformational leadership and affective organizational commitment and turnover intentions. Results of an online survey from 111 employed individuals showed that …

An Initial Study Of Properties Of Monolithic Silicon Dioxide Parts Produced By The Ceramic On-Demand Extrusion Process, Sam Sujit Choppala

Master's Theses

The ceramic on-demand extrusion (CODE) process is an additive manufacturing process for technical ceramics, which features an oil bath and partial drying to print stronger green bodies due to better preservation of the printed specimen structure and reduction of uneven part evaporation. A 3D printer capable of performing the CODE process is built with subsystems including motion, extrusion, and heating, and is controlled through LinuxCNC. The CODE printer and process is tested with silicon dioxide as the technical ceramic. High strength silicon dioxide parts are essential in various present-day industries such as dental, medical, and semiconductor. A 55vol% solids loading …

Characterizing Metabolic Changes In Cancer Cells After Treatment With An Extract Created From Walnuts, Codey Y. Huang

Master's Theses

Cancer cells undergo metabolic reprogramming to meet the energy and metabolite demands of constant proliferation. Originally observed as the Warburg Effect, where cancer cells are more glycolytically active, recent research has shown that cancer cells can also utilize oxidative phosphorylation to meet these demands, better known as metabolic flux. Previous work from our lab showed that treatment with a Walnut Extract (WE) induced cell death in MDA-MB-231 and HeLa cells by destabilizing the mitochondrial outer membrane potential, suggesting that the extract may be able to impact oxidative phosphorylation. The aim of the current research was to further characterize the impact …

Advancing Understanding Of The Relationship Between Tropical Cyclogenesis And Precipitation In A High-Resolution Model, Hananeh Jafary

Master's Theses

This study evaluates the relationship between tropical cyclone (TC) genesis, also known as tropical cyclogenesis, and precipitation in forecasts produced by the Basin-scale Hurricane Weather Research and Forecasting (HWRF-B) model. Pre-TC (PTC) forecasts from HWRF-B were produced during the 2017-2020 hurricane seasons in the North Atlantic and eastern North Pacific. In PTC forecasts, various precipitation characteristics, including rate, and coverage, were compared for different forecast outcomes of signal detection: hits, misses, false alarms, and correct rejections. Moreover, differences in radar reflectivity, mid-tropospheric moisture, and vertical wind shear (VWS) were studied and compared for developing (i.e., underwent cyclogenesis) and non-developing PTCs. …

An Investigation Of The Relationship Of Wave Intensity And Byssal Thread Strength Of The Mussel Mytilus Californianus, Felicia M. Miller

Master's Theses

The intertidal zone is a stressful environment with one of the main stressors being the fluctuation of wave energy over time and space. A structural adaptation employed by mussels living within the intertidal zone is byssal threads that aid in attachment while dealing with various levels of wave exposure. The California mussel, Mytilus californianus, lives in extremely wave exposure conditions, which makes it a great study species to assess the relationship between wave intensity and byssal thread strength. In this study, Mytilus californianus were collected from two locations in the Monterey Bay, each with a predicted wave exposed site and …

Quaternary Geologic Slip Rates For The Northern Rodgers Creek Fault, Near Windsor, Ca, Alianora Walker

Master's Theses

New Quaternary geologic slip rates were determined for the northern Rodgers CreekFault at two sites near Windsor, CA. Slip rates were determined through Quaternary mapping and geochronologic dating, specifically in situ cosmogenic 10Be, and infrared stimulated luminescence dating. At the Shiloh Ranch Regional Park site, a terrace dated to ~3.2 ka – 7.9 ka and offset 18 m – 45 m yielded a preliminary slip rate of 6.1 mm/yr ± 4.5 mm/yr. At the Foothill Regional Park site, an older Quaternary terrace and a younger alluvial fan deposit are reconstructed with source drainages across the fault. Reconstructing the ~68.8 ka …

Autonomous Vehicle Testing Using A Model-Based Approach, Muslim Razi

Master's Theses

Autonomous vehicles (AVs) offer advantages in many different industries which isleading to an increase in their adoption. Testing and conducting quality assurance on the complex systems are crucial in ensuring safety and reliability. The main challenges with AV testing include modeling diverse scenarios which an AV can encounter in the real world. Compared to real-world testing, simulators provide an efficient and versatile alternative for AV testing. SVL Simulator is one such simulator that integrates with Baidu’s Apollo AV platform. In this paper, a model-based testing framework utilizing semantic trees and 3D test tables is used to model driving scenarios into …

An Empirical Assessment Of Environmental Variable Combinations For Use In Fire Weather Forecasts, Daniel Sunvold

Master's Theses

Predicting high fire danger conditions is paramount to mitigating the impacts caused by wildfires. Such warning systems as red flag warnings (RFWs) and the National Fire Danger Rating System (NFDRS) utilize atmospheric and fuel moisture properties to warn public and government entities about conditions that may lead to the ignition or rapid growth of wildfires. In this study, we use high-resolution reanalysis and wildfire growth data from 2003-2020 in California to test a variety of different variables to determine if a more viable variable combination exists that could be used to create a better warning index which would allow for …

Black, Green, And Young: A Case Study Assessing Implementation And Outcomes Of An Environmental Science, Technology, Engineering And Math Curriculum For Youth In West Oakland, California, Ashari A. Taylor-Watson

Master's Theses

Environmental racism plagues low-income communities of color through exposure to environmental hazards, and the youth are most vulnerable. Environmental science, technology, engineering, and math (E-STEM) curriculums promoted as tools for corrective justice. Using a West Oakland, California Boys and Girls Club as a case study, I first describe the environmental awareness, attitudes, and actions of a group of six- to 13-year-old, predominantly African - American, children from this low-income community. I then examine the possible impacts of an E-STEM curriculum on participants, and I identify staff- and researcher-identified challenges to its implementation. During the study, the cohort experienced a heightened …

Evaluating Schizochytrium Sp. As An Alternative Ingredient In Fish-Free Feeds For Sablefish (Anoplopoma Fimbria) Aquaculture, Katherine A. Neylan

Master's Theses

Alternative feeds for marine finfish aquaculture are critical for the sustainable expansionof the aquaculture industry. Fish that are farmed for human consumption are often carnivorous; therefore, the industry uses wild-caught forage fish as a primary ingredient in feeds in the form of fishmeal and fish oil. As the aquaculture industry grows, it is important to identify alternative feed ingredients with high omega-3 polyunsaturated fatty acid (PUFA) concentrations. This study was designed to test a microalga, Schizochytrium sp., as an alternative feed ingredient for sablefish (Anoplopoma fimbria) using six test diets. The first diet (+FM+FO) contained both fishmeal and fish oil. …

A Risc-V Matrix Multiplier Using Systolic Arrays, Miao Wang

Master's Theses

Many modern day applications can be solved with the usage of machine learning, which involves training a computer to learn on large amounts of data without direct programmer guidance. Conventional computers typically use normal general purpose central processing units, though more specialized tasks may take advantage of more parallel hardware such as graphics processing units. In the pursuit of increased performance to facilitate increasingly more complex machine learning models, researchers in both academia and industry look towards field-programmable gate arrays and application specific integrated circuits for their needs. Various implementations, both theoretical and practical, exist across a wide variety of …

A Comparison Of Impa2 & Isyna1 Gene Expression And Intracelular Myo-Inositol Levels In Bipolar And Non-Bipolar Disorder Derived Human Lymphoblasts, Christina Rosette

Master's Theses

The thesis objective was to determine if myo-inositol concentration levels and the gene expression of IMPA2 & ISYNA1 differ among bipolar disorder types 1 and 2 compared to healthy controls (non-bipolar disorder). Previous studies have correlated different myo-inositol concentration levels with specific phases of bipolar and pharmaceutical treatments. Two genes, inositol monophosphatase 2 (IMPA2) and inositol-3-phosphate synthase 1 (ISYNA1), involved in de novo myo-inositol biosynthesis have been implicated in the pathophysiology of bipolar. In this study, differences in myo-inositol concentration and IMPA2 & ISYNA1 gene expression in lymphoblasts derived from subjects with bipolar types 1, 2, and healthy control were …

Temozolomide-Nsaid Mixtures And Novel Diclofenac-Purine Hybrids As Potential Antiglioblastoma Agents, Joshua Rotich

Master's Theses

Glioblastoma (GBM) is the most common, lethal and aggressive brain tumor in adults. Standard treatment involves surgery, radiation therapy and temozolomide (TMZ) chemotherapy. However, GBM recurs and the average survival rate is between 12 to 18 months with 25% 1-year survival rate and 9% 5 years survival rate. Treatment options and advancement is limited by the blood brain barrier (BBB) which restricts drug entry into the brain and the immense heterogeneity of the tumor which limit adequate control of the entire tumor using one drug. In this research, we explored whether a combination mixture of TMZ and non-steroidal anti-inflammatory drugs …

An Analysis Of The Methods Of Interpretation Of The Leviticus 11 Dietary Laws In Second Temple And Early Christian Non-Canonical Sources, Ani Ionut Constantin

Master's Theses

Background of the Research

Numerous commentators and theologians have written in recent centuries about clean and unclean animals. These distinctions are also referred to as dietary laws, and they are found in Leviticus 11 and Deuteronomy 14. For example, Walter Houston wrote in 1993 in the Journal for the Study of the Old Testament, Supplement Series 140 about the prohibition, its explanation, and its implications; Vic Lockman extended the study through the New Testament in 1997 in his work The Dietary Laws of the Bible; and Jordan D. Rosenblum in 2016 in his work The Jewish Dietary Laws in the …

Factors That Influence The Believers In Monze Central Seventh-Day Adventist Church Of South Zambia Conference To Consult Diviners, Ian Chiinya

Master's Theses

Problem

Studies have shown that even after becoming Christians, African Christians maintain their traditional religious practices. Non-Christian studies in Zambia reveal that both Christian and non-Christian Zambians still combine biomedicine with sacred African traditional medicine. The goal of the current study is to identify the variables that lead Monze Central Church Seventh-day Adventist members to consult diviners.

Method

Sections one and two of a questionnaire were created to collect information on the variables that affect going to a diviner. To assess the role and self-efficacy of local church elders in assisting members who have been impacted by demonic spiritual forces, …

Randomness Distillation To Improve Key Quality For Context-Based Authentication Schemes, Jackson West

Master's Theses

Context-based authentication is a method for transparently validating another device’slegitimacy to join a network based on location. Devices can pair with one another by continuously harvesting environmental noise to generate a random key with no user involvement. However, there are gaps in our understanding of the theoretical limitations of environmental noise harvesting, making it difficult for researchers to build efficient algorithms for sampling environmental noise and distilling keys from that noise. This work explores the information-theoretic capacity of context-based authentication mechanisms to generate random bit strings from environmental noise sources with known properties. Using only mild assumptions about the source …

Evolution Of Life-History Characteristics In Gadoidei, Joshua Hittie

Master's Theses

Life-history characteristics (e.g., age and growth) have been used extensively to understand the temporal population dynamics of fish species, but less so within a phylogenetic framework. This study investigates life-history characteristics within the suborder Gadoidei (order: Gadiformes) and to test the extent of phylogenetic signal for those characteristics. To accomplish this, a phylogeny of Gadoidei was first constructed based on both mitochondrial and nuclear genes. Within this phylogenetic framework, life-history traits, including growth rate, age at maturity, and longevity, as well as ecological data, such as water depth and diet type, were mapped to the phylogeny using parsimony analysis to …

Abolition Is Not Abstract: Zines And The Transmission Of Revolutionary Cultural Capital, Austin Wonder

Master's Theses

Abolition as a theory and practice-whether in relation to the institution of the prison, systems of policing, or the carceral state as a whole-has received relatively little attention or serious appreciation within the discipline of Sociology. Calls for the abolition of policing and prisons are often taken for granted as naïve and radical demands, perceived as being disassociated from the material conditions of reality. Nonetheless, abolitionist analyses provide a unique and critical perspective from which to explore alternatives to addressing pervasive police violence and mass incarceration through strategies which do not rely upon, or increase the power of, the criminal …

Queer Church Construction: Dialoguing Ecclesiology And Queer Theory, Daniel Ryne Warwick

Master's Theses

What would “The Church” look like if it were constructed by the socially marginalized, specifically queer bodies (modernity’s LGBTQIA+)? The “Catholic theological tradition” has been reticent in its hesitancy of queer theory, reinforcing the rejection of queer faithful and their highly contextual expressions of spirituality. This thesis seeks to build a well-architected theology out from these rejected queer bodies in order to demonstrate the intrinsically disordered’s inherent ordered-ness within the Catholic tradition and experience. Three distinct pillars of ecclesiology are engaged in this manner: spatiality, temporality, and spirituality. The first chapter, “En-sexed Flesh in De-Sexed Space; or, The Case of …

Growth Of Condition-Related Knowledge Among Youth With Spina Bifida: Associations With Neurocognitive Functioning And Self-Management Skills, Olivia Emery Clark

Master's Theses

Spina bifida (SB) is a congenital birth defect that may involve physical, medical, and neuropsychological complications due to central nervous system malformation (Copp et al., 2015). Ambulation problems, bladder and bowel dysfunction, and hydrocephalus require daily medical management tasks, including catheterization, bowel program management, and skin checks to avoid secondary complications. While self-management skills are typically gained during adolescence, executive dysfunction in SB may complicate gains (Dennis et al., 2006; Greenley, 2010). Indeed, evidence in other chronic conditions suggests that adolescent executive dysfunction is linked to poorer medical self-management. Condition-related knowledge has been identified as an important basis of medical …

The Effect Of Group Identification And Emotion On Participation In Collective Action, Iryna Chaban

Master's Theses

In the last few years, the number of collective actions in the United States started to increase. These events have been ranging from peaceful to violent. The present research aims to understand what is causing groups to participate in collective action and become aggressive. It will expand understanding of group identification, emotion, and participation in collective action. The researcher hypothesizes that individuals who hold higher identification with a group are more likely to experience anger and participate in a protest. Data collection involved an online survey. Introductory psychology students read a passage describing a protest and respond to several short …

Phenotypic Analysis Of Murine Gut Associated Lymphocytes, Madison Flood

Master's Theses

γδ T cells are important in the role of immune homeostasis, especially in relation to the gut. It has been shown that there is a higher proportion of γδ T cells in the intestines than in circulation. With this knowledge, our lab focused on understanding the mechanisms of these cells, specifically regarding immune tolerance. In our preliminary research, we identified a subset of γδ T cells that express Foxp3, a transcription factor essential for the functioning of regulatory T cells, in the neonatal (5 day old) intestine. We hypothesized that these Foxp3+ γδ T cells have immunosuppressive functions upon exposure …

Three-Dimensional Staging Series Of Anolis Sagrei, Lilian Epperlein

Master's Theses

With the rapid rise of Evo-devo and the concurrent development of new imaging techniques, comparative studies of development have accelerated over the last decade. Squamates, lizards and snakes, lack a traditional experimental model species for developmental investigations, yet are important for understanding fundamental evolutionary questions because of their remarkable diversity. However, several squamate species have growing communities of biologists building new resources for comparative and experimental studies of lizard development. Creation of detailed embryological atlases for these species will help promote their advancement. In the past, scientists have had to rely on destructive methods to take apart biological samples which …

Elucidating The Function Of An Evolutionarily Conserved Col2Α1 Isoform During Vertebrate Development, Charles Lantz H. Ingersoll

Master's Theses

ABSTRACT

Formation of skeletal structural elements during vertebrate embryogenesis is largely a

conserved evolutionary process that employs numerous conserved genes and pathways. One

critical gene in this process is the highly conserved vertebrate Type II Collagen alpha 1 (col2α1).

It produces multiple splice isoforms that have different functions and expression patterns during

skeletogenesis. Two of the primary isoforms are of great interest; variant 1, the primary

embryonic isoform, and variant 2, a post embryonic isoform. While the more commonly known

post-embryonic isoform has been well studied over the last 30 years, identification of a unique

role for the evolutionarily conserved …

A Process Evaluation Of Aunt Mary’S Storybook: Seeking To Improve The Relationship Between Incarcerated Parents And Their Children Through Literacy, Scott Charles Mcwilliams

Master's Theses

In response to the rise of incarceration in jails and prisons, and the number of children adversely impacted by their parents’ incarceration, in 1993, a nonprofit organized called Companions Journeying Together (“CJT”), created the Aunt Mary’s Storybook (AMS) program to foster positive connections between incarcerated parents to their children. What began as a Christmastime program for mothers in the Cook County Jail has grown into a year-round program operating in prisons and jails throughout Illinois. AMS provides those incarcerated with an opportunity to record themselves reading a book to their children, and AMS then mails/transmits the recording along with a …

Influences Of Latino Caregivers’ Input And Acculturation On Children’S Bilingual Development: A Speech Sample Analysis, Jordan Sierra Perry

Master's Theses

Interactions with caregivers are important for children’s development. In particular, the language input that young dual language learners (DLLs) receive from their primary caregivers affects their cultural knowledge and their bilingual language outcomes. However, relatively little research has been conducted to investigate the cultural contexts that influence Latino caregivers’ bilingual language use at home, including their acculturation level. Thus, the present study examined the relation between caregivers’ acculturation and their children’s bilingual (Spanish and English) language use, and whether this relation varied as a function of caregivers’ bilingual language use. Parent-report measures of bilingual language use, in addition to video …

Investigating The Role Of Nagc Reveals It To Be A Global Regulator, Natasha Peterson

Master's Theses

Bacterial colonization of host surfaces can result in symbiotic or pathogenic associations.As bacteria becomes more resistant to antibiotics, pathogenic bacterial colonization poses an increasing risk to human health. Symbiotic associations that have beneficial outcomes for both the host and the microbe can serve as models to investigate how bacterial processes affect colonization of host surfaces. The symbiotic relationship between the Gram-negative, bioluminescent bacterium Vibrio fischeri and the Hawaiian bobtail squid is one such model (E. V. Stabb & Visick, 2013). The study of this exclusive relationship has developed in a way where in vitro phenotypes can predict the ability of …

Positive Affect Facilitates Reduction In Depression Symptoms During A Mobile Mindfulness-Based Intervention, Andrew Rauch

Master's Theses

Depression negatively impacts the lives of many, and the rates are continuing to rapidly increase. Identifying patterns of modifiable affective psychological mechanisms that contribute to reducing depression symptoms is critical to improve the effectiveness of wellbeing interventions for individuals with depressive disorders. Depression has been characterized by valanced patterns of low positive affect and high negative affect, yet the extent to which these relative patterns of affectivity change in response to intervention remains less clear. The present study evaluated affective patterns in college students (n = 127) with elevated depression symptoms who participated in a randomized controlled trial (RCT) of …

Calcium-Mediated Induction Of Vibrio Fischeri Es114 Biofilms, Katia Elizabeth Semenchuk

Master's Theses

Vibrio fischeri bacteria form biofilms that facilitate symbiotic colonization of the Hawaiian bobtail squid, Euprymna scolopes. These host-associated biofilms require production of the SYP polysaccharide. However, it has been difficult to observe robust biofilm formation in vitro in a laboratory setting using wild-type strain ES114; instead, most work investigating syp-dependent biofilm formation has relied on genetically altered strains. Guided by recent findings that increasing calcium induces c-di-GMP (Tischler et al., 2021), a molecule known in other systems to promote biofilm formation, the question was posed as to whether high levels of calcium alone could promote syp-dependent biofilm formation by ES114. …