Digital Commons Network^™

Remote Work And The Desire For Meaningful Work: The Unexpected Moderating Effects Of Age And Childrearing, Adriana Rae Meredith

Master's Theses

The COVID-19 pandemic sent the world into lock down. Since then, organizations have been wrestling with how to navigate the many opinions, as well as research-backed advantages and disadvantages of in-office work, hybrid work, and remote work. In addition to shaking up the ways in which work is done, the pandemic shutdowns caused some to re-evaluate why they do the work they do. The current study aimed to examine the relationship between remote work and an employee’s desire for meaningful work to increase understanding of how remote work can be used as a strategic element of job design rather than …

Deep-Learning Approaches To Predict Remaining Useful Life Of Hard Disks, Rohan Mohapatra

Master's Theses

On a daily basis, data centers process huge volumes of data using inexpensive hard disks. Data stored in these disks serve a range of critical functional needs from financial, and healthcare to aerospace. As such, premature disk failure and consequent loss of data can be catastrophic. To mitigate the risk of failures, cloud storage providers perform condition-based monitoring and replace hard disks before they fail. By estimating the remaining useful life (RUL) of hard disk drives, one can predict the time-to-failure of a particular device and replace it at the right time, ensuring maximum utilization whilst reducing operational costs. We …

Controllable Physics-Informed Latent Space For Acoustic Wave Manipulation, Tristan Shah

Master's Theses

Partial Differential Equations (PDEs) are foundational descriptive tools in scientific and engineering disciplines, enabling the exploration of phenomena from material design to climate dynamics and the propagation of pandemics and wildfires. Establishing control of PDEs, especially when the underlying phenomena are only partially observable, holds great potential for fostering technological innovations. This ambition faces considerable obstacles, as a robust sample-based solution remains elusive. Addressing this challenge, this thesis introduces a framework leveraging physics-informed machine learning (ML) to enable control of PDEs. Central to this framework is an agent, equipped with sensors to perceive its environment, that generates a low-dimensional physics-informed …

Extraction, Preparation, And Characterization Of Alginate Biopolymer Films From Natural Seaweed, David Ly

Master's Theses

This study evaluates the use of naturally harvested seaweed from the Monterey Bay to produce a biodegradable film for food packaging applications. Two different film-forming methods were evaluated: solution casting and compression molding. The solution casting method using an alginate biopolymer produced the most consistent results. The seaweed biopolymer was extracted from the seaweed biomass using a modified method, resulting in a yield of 11-25 %. The highest yield was observed when using the lowest biomass concentration of 10 wt. %. The extracted alginate was then cast into films at different levels of glycerol plasticization (15-35 wt.%). The addition of …

Self-Efficacy’S Mediating Role On The Relationship Between Personality And Depression In The Unemployed, Christina Tran

Master's Theses

Depression affects 1 in 5 unemployed individuals, holding rank as one of the most prevalent negative effects of unemployment in the United States. Personality is often considered a predictor of the development of depressive symptoms during unemployment however, there is little research to explain the relationship between personality and depression. The purpose of this study was to expand on the relationship between personality and depressive symptoms in the American unemployed population by testing self-efficacy’s mediating effect between personality and depressive symptoms in the American unemployed population. A sample of 121 participants, who were either currently or recently unemployed, completed an …

Overnight Rice Fermentation: An Analysis Of The Physicochemical Changes In White, Brown, And Enriched Rice Varieties, Kavin Sivakumar

Master's Theses

Fermentation refers to the activity of microorganisms breaking down substrates, resulting in changes to a food product. One fermented food practice from the Indian subcontinent is overnight fermented rice. The traditional preparation consists of covering cooled cooked rice in water and leaving it at room temperature to ferment overnight. The objective of this project was to investigate overnight rice fermentation through quantifying its physicochemical changes. The study utilized three types of rice: white, enriched white, and brown. Mixtures of cooked rice and water at a 1 gram: 2 milliliter ratio were fermented at 29 degrees Celsius and 60% humidity for …

A Simulation Framework To Understand The Error Generation And Propagation Of Quantum Algorithms, Anika Zaman

Master's Theses

In this work, we present a Python framework designed to demonstrate various error types within quantum circuits through the utilization of probabilistic data obtained from quantum computers. The framework serves as a valuable tool for monitoring and mitigating errors across all stages of quantum circuits involving multiple qubits and gates. Leveraging the Harrow-Hassidim-Lloyd (HHL) quantum circuit, we conduct an analysis of errors on an IBM quantum computer and subsequently optimize the circuit. The paper introduces an automated methodology for computing single bit-flip errors and propagation errors, and gate errors offering insights into opportunities for mitigating errors in the context of …

Structure Of The South-Central Skagit Gneiss Complex: Implications For Rheological Response To Magmatic Flare-Ups, Jeffery Wegener

Master's Theses

The Skagit Gneiss Complex in the North Cascades magmatic arc consists of Late Cretaceous to Eocene orthogneiss and partially migmatitic paragneiss. Orthogneiss protoliths intruded during two magmatic flare-ups, making the Skagit Gneiss an ideal location to study the relationship between flare-ups and deformation. Geologic mapping, microstructural analysis, and U-Pb dating of zircon were used to construct a timeline of magmatism, metamorphism and deformation in a portion of the Skagit Gneiss. A tonalitic gneiss intruded between ~79-73 at the beginning of the older flare-up and an ~60 Ma, tonalitic to granodioritic, leucocratic orthogneiss intruded at the end of this flare-up. NW-SE …

An Exploration Of Dimensionality Reduction Of Dynamics On Lie Groups Via Structure-Aware Canonical Correlation Analysis, Wooyoung Chung

Master's Theses

Incorporating prior knowledge into a data-driven modeling problem can drastically improve performance, reliability, and generalization outside of the training sample. The stronger the structural properties, the more effective these improvements become. Manifolds are a powerful nonlinear generalization of Euclidean space for modeling finite dimensions. When additionally assuming that the manifold carries (Lie) group structure, this imposes a drastically stricter global constraint. The range of their applications is very wide and includes the important case of robotic tasks. We apply this idea to Canonical Correlation Analysis (CCA). In traditional CCA one constructs a hierarchical sequence of maximal correlations of up to …

“It Makes Me Wonder, How I Keep From Goin’ Under:” Deconstructing Cultural Strengths In The Stories Of Black College And University Students, Sikeza C. Fowlks

Master's Theses

To deconstruct conceptualizations of Black cultural resiliency outside of the perception of the current dominant culture, the present study interviewed Black university and college students for their narratives about their perceptions of Black culture and how they navigate systemic oppression. To create a full conceptualization of Black issues and cultural resilience this study explored the current literature around Black experiences of racism and its relationship to Race-Based Trauma. Additionally, the researcher expanded upon current interventions used to mitigate Race-Based Trauma and how Black culture is currently defined within systemic oppression. To answer the study’s research question framework around Black cultural …

Assessing The Role Of Steam Explosivity In Shallow And Deep Marine Environments, Frederick Ede

Master's Theses

Volcaniclastic deposits formed in shallow and deep marine environments show strikingly different characteristics resulting from the ability of steam to assist in lava fragmentation. Deep marine deposits come from recent lava flows at Axial Seamount, formed around 1,500 m water depth, while shallow marine samples come from Miocene Columbia River Basalt Group (CRBG) lava flows that were emplaced in a shallow marine to subaerial environment and are now exposed on the Oregon coast. Volcaniclastic material from these two environments was compared using granulometry, componentry, and mapping. Lithofacies from the CRBG contained abundant ash and lapilli sized clasts with a high …

Seasonal Dynamics Of The Introduced Sponge Hymeniacidon Perlevis In The Elkhorn Slough, California, Usa, Jackson Hoeke

Master's Theses

Hymeniacidon perlevis is a cosmopolitan sponge with a seasonal life cycle We investigated seasonal and interannual dynamics of H. perlevis in Elkhorn Slough estuary, where it is an introduced species, and explored correlations between sponge cover and environmental conditions. We used sponge cover to estimate the potential effects H. perlevis on its environment and how those could vary across its seasonal life cycle. We found that successful recruitment is currently restricted to the upper estuary and while it varies annually, the frequency and density of sponge recruits have generally increased from 2007 to 2023. A seasonal life cycle was confirmed …

“Lovely Is The Hillside” An Ecocritical Analysis Of The Narrative Function Of Setting Elements In Njal’S Saga, Michelle Fae Jones

Master's Theses

This paper uses an ecocritical lens to examine the portrayal of Iceland’s physical environment in Njal’s Saga. Drawing on historical and scientific context, this paper applies the ecocritical lens using an interdisciplinary approach to explore how the author crafted a narrative that idealizes Iceland’s Saga Age, selectively highlighting aspects of the environment that align with a vision of the land’s fertility and the people’s honor. This paper seeks to uncover the nuances of the author’s portrayal through a comparative analysis of four English translations of the saga. Applying the ecocritical lens allows for a deeper discussion of the implications for …

Undocumented And Unsupported: How College Students Navigate To Meet Their Basic Needs, Mario Alberto Gonzalez

Master's Theses

The cost of attendance at colleges and universities across the United States has risen exponentially year after year. Among these costs include tuition, lodging, food, textbooks, academic materials, and health care, many of which are considered “basic needs” that are ultimately essential for human survival. At the same time, certain groups of students continue to be marginalized and presented with additional barriers in accessing higher education in equitable ways. Undocumented students are one of these groups of students, and are the focus of this study. Although the passage of DACA in 2012 presented opportunities for approximately 800,000 undocumented students, it …

Application Of Agent-Based Simulation And Game Theory In Evaluating Implementation Of Whole Genome Sequencing In Treating Lung Cancer, Fateme Ghalenoei

Master's Theses

Cancer, particularly lung cancer, presents significant diagnostic and economic challenges globally. Timely diagnosis and cost management play pivotal roles in treatment success. A biomarker is any measurable molecule in blood, bodily fluids, or tissues, indicating the potential presence of an abnormal bodily process, condition, or disease. Biomarker testing is a laboratory test in oncology that is used in the selection of targeted cancer treatments and to help avoid ineffective treatments. Whole Genome Sequencing (WGS), is a biomarker test which while more comprehensive, comes at a higher cost. This study proposes an agent-based simulation model within a game-theoretic framework to examine …

A Broadband, Dual Polarized Antenna For The Radio Neutrino Observatory In Greenland, Danny Maas

Master's Theses

The Radio Neutrino Observatory in Greenland (RNO-G) is a multidisciplinary, multinational collaboration which uses antennas to detect neutrino interactions with arctic ice sheets. Neutrinos are formed from nuclear reactions; predominant sources include nuclear reactors, stars, supernovae, and the big bang. They rarely interact with normal matter and thus travel from origin to destination relatively unimpeded, with applications including tracking nuclear weapons tests and supernovae. Measurements of galactic neutrino flux can provide information about how the universe developed and its current evolution. Neutrino interactions produce signals from 100 to 1000MHz. Current RNO-G antennas operate over only a portion of this band; …

Effect Of Enzymatic Pretreatment On Biomethane Production From Olive Pomace, Ningjing Zhong

Master's Theses

In 2023, approximately 2.36 million metric tons of olive oil were produced globally. Olive pomace, a byproduct of the flesh and pits left after olive oil extraction, presents environmental challenges when used as landfill due to its high polyphenol and organic contents, or when combusted due to greenhouse gas emissions. Its potential as animal feed is limited, yet it holds promise for methane production via anaerobic digestion (AD), providing a source of renewable energy. However, the highly crystallized polysaccharides in olive pomace, such as cellulose, hemicellulose, and pectin, impede its conversion to methane, and the high polyphenol content inhibits methanogen …

Willingness To Report Sexual Victimization Through Formal And Informal Routes And The Correlation To Victim’S Race, Sexual Orientation, And Gender Identity, Tara Diltz

Master's Theses

The purpose of this study is to understand the impact, if any, that holding marginalized identities has on the willingness to report sexual victimization to law enforcement, Title IX offices, and informal support routes. This study examines the various factors that may influence one’s willingness to report sexual victimization through both formal and informal routes. Formal routes include law enforcement and Title IX, while informal routes involve the self-disclosure of victimization to families, friends, or romantic partners. This research specifically explores how racial and ethnic identities, sexual orientation, and gender identity can influence an individual's perceived willingness to report sexual …

Modeling, Simulation, And Experimental Testing Of A Single-Legged Hopper, John Anthony Bennett

Master's Theses

Legged robots are well-suited for navigating unstructured terrain due to their ability to perform agile dynamic motions. Building on the efforts of Cal Poly's Legged Robotics Group, this project focuses on achieving stable forward hopping with a single legged robot.

A comprehensive model of leg hopping is formulated, with leg dynamics during flight and stance phases derived using Euler-Lagrange equations. During the stance phase, a spring-mass system models the leg-ground interaction. The touchdown and lift-off conditions are formulated mathematically, and state mappings between phases are determined via momentum conservation. A two-phase hybrid controller is designed, incorporating trajectory planning during flight …

The Effects Of An Acute Dose Of Cannabidiol On Health And Two-Mile Time Trial Performance, Elyssa Bell

Master's Theses

As more studies exploring the therapeutic effects of cannabidiol (CBD) in both clinical and non-clinical populations continue to increase, there is a renewed interest in the ability of CBD to affect performance. In fact, many anecdotal reports in the media and online suggest that CBD may improve performance. Unfortunately, very few studies support these claims and research in the area is limited. Purpose: The purpose of this study is to explore the effects of an acute dose of CBD on anxiety symptoms, GI distress, heart rate variability (HRV), heart rate (HR), blood pressure (BP), blood lactate (BL) rate of perceived …

Contrast As A Governing Principle: Topic Deployment In Selected Sonatas Of Johann Christian Bach, Morgan Hall

Master's Theses

Between the end of the Baroque era and the end of the Classical era, there was a shift in the way music was composed. This shift allowed composers to employ multiple topics in one work as opposed to the single-affect-per-movement that was standard under the Doctrine of Affections. Despite plenty of scholarship about both of the eras, the transition from one to the other has been relatively unexplored. Early musicologist Charles Burney noted in a volume of his General History of Music that there was a composer who was the first to employ “contrast as a governing principle”, and this …

Determining Spatiotemporal Regulation Of Actin Dynamics In Choroid Fissure Closure, Cristal Gonzalez

Master's Theses

There are several stages of development necessary for proper vision. During vertebrate eye development, early eye morphology progresses in three stages: optic cup morphogenesis, basement membrane breakdown, and tissue fusion. Eye development is an intricate collaboration between many cells and requires tissues to migrate and bridge together. The following research investigates the Danio Rerio eye development to understand the molecular regulation of choroid fissure closure (CFC). It is hypothesized that CFC requires temporal and spatial regulation of actin dynamics. We investigate this question using chemical inhibitors, cytochalasin D, an actin treadmilling inhibitor, and NSC23766, a Rac-GEF inhibitor of the actin …

Identifying New Potential Breeding Pond Sites For The Dusky Gopher Frog In Southern Mississippi, Shelbie Kellum

Master's Theses

The main objective of this thesis was to identify potential new pond sites across southern Mississippi for the critically endangered dusky gopher frog (DGF). Ephemeral ponds are the preferred breeding habitat for the species, but they are quite rare in the region due to the diminishment of the longleaf pine ecosystem. This research addresses gaps in the current literature by providing a broad overview of dusky gopher frog breeding habitat identification. LiDAR derived datasets as well as tools within ArcGIS Pro were utilized in order to perform spatial analysis on sites of interest in south Mississippi. By using this methodology …

Understanding The Variability Of Circulation And Water Quality At Experimental Oyster Leases In The Mississippi Sound Using A High-Resolution Nested Modeling Approach, Shihab Hossain Saran

Master's Theses

Four 50-acre experimental oyster leases; two near Saint Louis Bay (StLB) and two near Pascagoula Bay (PB) were recommended to provide science-based guidance for oyster reef restoration efforts in response to continued limited productivity of oysters in the Mississippi Sound (MSS). Two-way nested simulations using ROMS within COAWST modeling framework have been run with improved forcings to analyze circulation, salinity and temperature variability within and around the lease areas under the extreme freshwater inflow from Bonnet Carré Spillway (BCS) openings and local rivers in 2019. High-resolution atmospheric forcing data is crucial because diurnal sea-land breeze affects salinity variability by increasing …

On An Unshakeable Foundation: An Archaeological Investigation Of The Postemancipation Black Community Of Bass Street, The Church They Built, And The Lasting Identity They Formed In Nashville, Tennessee, Clélie Elizabeth Cottle Peacock

Master's Theses

The Bass Street Community lived along the northern base of St. Cloud Hill in Nashville, just below the Civil War-era Union fortification, Fort Negley. The fort was built and defended by conscripted free, enslaved, and self-emancipated Black/African Americans and soldiers from the U.S. Colored Troops; some of whom stayed, built residences, founded a church, and established a shared community identity. The objects they left behind reflect a time of transition in the postemancipation urban South.

The former Bass Street Community enclave is a subset of the Fort Negley archaeological site (40DV189). My thesis examines artifacts from the Bass Street Baptist …

Exploring Overbank Sediment Deposition Variation In Heavily Modified Floodplains Of The Lower Mississippi River: A Sedimentological And Geophysical Analysis, Seth Fradella

Master's Theses

Since the 1930s, the Lower Mississippi River (LMR) has experienced large-scale modifications to the channel profile and surrounding floodplains through dams, dikes, revetments, dredging, and channel cutoffs. Although these changes have improved navigation and reduced flood risk, unanticipated changes to the major flood return period, individual flood severity and duration, and sediment regime have become increasingly apparent and sometimes problematic, such as the 2011 and 2018-2020 floods. Flood control levees along the LMR have reduced the natural floodplain area by 70-90%, resulting in heavily restricted overbank storage capacity of water and sediment. For the same flood events in recent history, …

The Relationship Between Overparenting, Psychological Needs Satisfaction, And Alcohol Use On Risky Sexual Behavior, Melanie Prater

Master's Theses

Studies have shown college students to be vulnerable to negative outcomes, including engaging in risky alcohol use (Lewis et al., 2014; Kilwein & Looby, 2018; Cui et al., 2019) and risky sexual behavior (Dir et al, 2014; Trub & Stark, 2017; Kilwien & Looby, 2018). Understanding predictors and mediating variables associated with risky sexual behavior is one important means of improving prevention strategies. Parenting may be one variable associated with risky sex. Overparenting, a parenting style characterized by parental overinvolvement, has received recent attention due to its association with poor outcomes for adolescents and emerging adults, including an increased risk …

Promoting Preschool Teachers’ Maintenance And Generalization Of Behavior-Specific Praise Through Multitiered Consultation, Claudia Abril Ochoa

Master's Theses

Teachers struggle to provide behavior-specific praise (BSP), which is associated with appropriate classroom management and decreases in student’s problem behavior. The current study used a multiple-baseline design across three Head Start teachers to test the effectiveness of the multitiered consultation model in increasing teachers’ BSP. The Head Start center provided a universal training in classroom management strategies, including BSP. Three teachers who were not implementing this strategy consistently (i.e., less than five instances in a 10-min observation) received Tier 2 supports including goal setting paired with a simple prompt. Data about teachers’ use of BSP was collected class-wide at a …

Promoting Greater Granularity In Climate Research: A Case Study Analyzing Perceptions Of Anthropogenic Climate Change Among Students, Faculty, And Staff At The University Of Southern Mississippi, Kelly Wegmann

Master's Theses

Anthropogenic climate change is a global concern that has the possibility to become the next world-altering event. While there is a substantial amount of scientific evidence proving its existence and harmful repercussions, there is still a lack of belief in its occurrence within the United States. This research uses survey data obtained from the University of Southern Mississippi to provide an understanding at a local scale of how both physical and psychological aspects bridge a gap in perception research.

With the use of previous research done by the Yale Program on Climate Change Communication (YPCCC) and George Mason University Center …

Remembering, Forgetting, And Artifact Deposition In Late Prehistoric Florida, Andrew Bowen

Master's Theses

Material culture plays a fundamental role in memory processes. Artifacts are an important means of both connecting with and cutting ties with a real or imagined past. They can be reminders or symbols of connection to other people, places, things, powers, or memories, making them key components within networks and relations. The way materials are deposited or destroyed often follows specific customs or responds to environmental factors. Specific situations, like interactions with outside groups or socio-political changes, prompt particular depositional events. During the Mississippi period, such circumstances were prevalent throughout the Southeast. By treating artifacts in specific ways during deposition, …