Digital Commons Network^™

Cyberbullying Victimization And Suicide Behavior: The Roles Of Social Anxiety And Body-Related Comparison Among Young Latina Adults, Monica Elena Ochoa

Theses and Dissertations

Suicide behavior rates have increased over the years in the United States among Latinas and adolescents/young adults. Previous research has identified relationships between various body-related concerns, (e.g., body dissatisfaction, appearance comparison, and body shame) cyberbullying, social anxiety, and suicidal ideation, yet minimal research has examined the relationship of these factors and how they interrelate to explain suicide risk in Latina young adults. This study investigated whether body dissatisfaction, appearance comparison, and body shame had indirect effects on suicide behaviors through the interaction of cyberbullying victimization in 194 Latina college students. The results of this study found that cyberbullying victimization mediated …

Interactive Effects Of Nutrient Loading And Hyposalinityon The Physiological Responses Of The Red Macroalga Gracilaria Tikvahiae, Donavuan Vincent Salazar

Theses and Dissertations

Coastal macroalgae face anthropogenic stressors such as nutrient enrichment from nitrogen fertilizers and reduced salinity linked to flooding. The physiological impacts of these combined stressors remain unclear. This study examined interactive effects of nitrogen loading and hyposalinity on Gracilaria tikvahiae through a 9‑day laboratory experiment. Samples experienced declining salinity (35–0 ppt) with nitrate or ammonia enrichment (120 µmol/L). Measurements included primary production, respiration, biomass, nitrate uptake, and chlorophyll‑a. Hyposalinity significantly reduced physiological performance, with gross primary production declining over 100%, chlorophyll‑a content 25–45% lower, biomass loss, and reduced nitrogen uptake. Nitrogen enrichment failed to mitigate the adverse impacts under hyposaline …

Bacillus Subtilis: A Bacterium That Can Potentially Degrade Low-Density Polyethylene (Ldpe) And Polyethylene Terephthalate (Pet), Migdalia Flores

Theses and Dissertations

The widespread application and disposal of plastics, such as low-density polyethylene (LDPE) and polyethylene terephthalate (PET), have raised significant environmental health concerns. Because of each plastic’s stability and durability, these plastics exhibit limited natural degradation in the environment. Recently, the environmentally friendly biodegradation of plastics by living microorganisms has attracted more attention, as they can assist in the natural degradation process. In this study, the bacterial strain Bacillus subtilis ATCC6051 was used to degrade LDPE and PET for 60 days. To measure the degradation of low-density (LDPE) and polyethylene terephthalate (PET), the dry weight was taken, and physical characteristics were …

Development And Testing Of A Prototype Erbium-Doped Lithium Tantalate Based Sensor For Infrastructure Crack Detection And Measurement, Alejandro Barrera

Theses and Dissertations

Ensuring the safety and longevity of infrastructure is crucial to safeguarding communities and preserving economic stability. In this study, the development of a novel sensor for detecting and characterizing cracks in infrastructure, particularly suited for deployment on Unmanned Aerial Vehicles (UAVs), is presented. The device utilizes a laser (operating at 980 nm) for excitation of erbium-doped lithium tantalate nanoparticles that emit 1550 nm wavelength, which stimulates a photodiode for data collection. The data was utilized to collect, process, and reconstruct topological information. The synthesized lithium tantalate nanoparticle samples vary in erbium doping percentages of 0.5%, 3%, and 10%. Experimental evaluation …

Applicability Of Cementochronology To Estimate Season-Of-Death In Humans: Insights From Modern Documented Collections, Olga Ibarra-Sanchez

Theses and Dissertations

Dental cementum is characterized by lifelong deposition of alternating opaque annuli in fall/winter and translucent bands in spring/summer. This study aims to test the applicability of cementochronology to estimate season-of-death, by observing the properties of the last layer, with direct implications for forensic anthropology and bioarchaeology. The sample includes canine teeth from 146 adults (84 males, 62 females), age-at-death ranging from 20-97 years (mean=61.7 years, SD=18.6 years), from two contemporary skeletal collections. Of these individuals, 78 (53.4%) died in spring/summer and 68 (46.6%) died in fall/winter. Overall accuracy was low at 64.4% (94/146). Accuracy was higher for spring/summer deaths 100.0% …

Feature Extraction From Railroad Bearing Onboard Vibration Sensors Using Machine Learning Models, Diego Cantu

Theses and Dissertations

The University Transportation Center for Railway Safety (UTCRS) has developed an algorithm capable of identifying defective railroad bearings, determining damaged component(s) within, and quantifying severity of the defects. The defect-detection algorithm requires the operating speed as an input, which is not readily available in field operation of onboard sensors. Therefore, onboard sensors deployed in rail revenue service must rely on Global Positioning Systems (GPS) to obtain speed, which can be power-intensive and susceptible to signal interference. This study covers the development of a vibration-based model that extracts operating speed from wireless sensor data to enable fully autonomous onboard diagnostics. Signal …

Postprocessing Gan-Generated Synthetic Time Series Using Dynamic Time Warping, Md Raisul Islam Roni

Electronic Theses and Dissertations

Generative Adversarial Networks (GANs) are a class of deep learning models capable of producing realistic synthetic data that preserve the statistical and temporal characteristics of real datasets. The DoppelGANger (DGAN) framework extends this approach to time series data by jointly modeling temporal dependencies and contextual metadata. However, synthetic sequences generated by GAN may show temporal misalignment, resulting in inconsistencies when compared with real data. This study presents a postprocessing framework based on Dynamic Time Warping (DTW) and its differentiable extension Soft-DTW to improve the temporal alignment of synthetic time series. The framework is evaluated using quantitative measures of alignment and …

Microgrid Approach With Data-Driven Monitoring To Enhance The Resilience Of Water Distribution Systems, Binod Ale Magar

Theses

Existing centralized water supply systems are critically threatened by the joint effects of climate and socioeconomic changes, extreme weather events, and physical degradation due to aging, and their changeability. The uncertain and changing drivers pose challenges for water supply systems in providing sustainable water services during disruptions. The energy field dealing related issues has endorsed the microgrid approach with a decentralized energy supply with dispersed local energy sources. The application of energy microgrids has demonstrated their resiliency for sustainable energy supply. For improved resiliency of a water distribution system, this study investigated the application of a microgrid approach and the …

Exploring Denitrification In Wetland Nitrogen Cycling And Biostimulant-Based Agricultural Strategies To Improve Ecosystem Health, Alexander Bechtel

Theses

The overuse of fertilizers has doubled the amount of reactive nitrogen in the environment. Agricultural runoff then carries these pollutants into the waterways eventually causing severe ecological damage such as the Gulf of Mexico dead zone. Nitrogen plays an important role in all life on this planet, here we describe two complementary projects that investigate ways to mitigate nitrogen pollution. The first project investigates denitrification rates in soil after the Len Small Levee breached in 2016 which reconnected the Dogtooth Bend Floodplain with the Mississippi briefly. The denitrification process that began in the hydrologically activated soils was hypothesized to be …

Echo’S Repertoire: Performing Science Fiction And Trans Care Models, Juniper Blue

Theses

Echo’s Repertoire is a mixture of a passion piece and a call for more work with performing science fiction. It focuses on interpersonal communication within trans studies and the experiences of transgender individuals and myself. Echo’s Repertoire is also an example of the Lyrical Model proposed by Awkward-Rich as a new model for trans affirming speech. The show is laid out non-linearly and follows along with Echo as he starts to build new relationships with the advice of his spaceship ai, Eep, who is a previous version of himself prior to transformation (transition).

Relationship Between Semi-Aquatic Mammal Occupancy And Particulate Carbon, Nitrogen, And Phosphorus Dynamics In Freshwater Ecosystems, Madison H. Stokoski

Theses

Semi-aquatic mammals such as beavers (Castor canadensis) and muskrats (Ondatra zibethicus) can influence carbon (C), nitrogen (N) and phosphorus (P) dynamics in freshwater systems. While the effect of beavers, in particular, are typically attributed to their dam and lodge building behaviors, these animals do not always build these structures. It’s possible that other, non-damming behaviors (e.g. foraging and burrowing) may influence the availability of nutrients as well. To assess this possibility, we surveyed 54 lentic and lotic waterbodies across Southern Illinois and investigated the possibility that beaver and muskrat occupancy improved our ability to explain variation in nutrient availability across …

Trends In Hospital Resource Use For Children With Complex Chronic Conditions., Nathaniel D. Bayer, Matthew Hall, Maria Osipovich, John M. Morrison, Christian D. Pulcini, Jana C. Leary, Joanna E. Thomson, Tamara D. Simon, Dennis Z. Kuo, Jeffrey D. Colvin, Eyal Cohen, Jay G. Berry

Manuscripts, Articles, Book Chapters and Other Papers

IMPORTANCE: Despite a small prevalence, children with complex chronic conditions (CCCs) use substantial inpatient resources.

OBJECTIVE: To assess national trends in hospital discharges, bed days, and hospital charges for children with and without CCCs in the US from 2000 to 2022.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective, repeated cross-sectional study used hospital discharge data from the Kids' Inpatient Database (KID) from the years 2000, 2003, 2006, 2009, 2012, 2016, 2019, and 2022 for US children aged 0 to 18 years, excluding uncomplicated newborn discharges.

EXPOSURE: Presence of 0, 1, 2, or 3 or more CCCs.

MAIN OUTCOMES AND MEASURES: Trends …

Vol 70 #6, Rebecca Chavez

MPLA Newsletter

No abstract provided.

Building Young Leaders With Purpose: Teaching Leadership And Anti-Bullying Through Student Leadership Club, Yaned Anaya-Soto, Julyana Lopez

Capstone Projects and Master's Theses

This capstone project was developed to implement a Student Leadership Club for elementary students’ in response to high levels of bullying influenced by unmet social emotional needs, family stress and increased access to technology. The project took place at Jesse G. Sanchez Elementary School within the Alisal Union School District (AUSD). A predominantly Latino, multilingual and economically vulnerable TK- 6th school in Salinas, CA. The eight week curriculum was designed to strengthen leadership skills through self and peer nominations to help promote bullying prevention among fifth and sixth graders. Weekly meetings focused on communication, empathy and upstander behaviors. Pre and …

College Readiness Support, Emely Contreras

Capstone Projects and Master's Theses

This paper examines the College Readiness Support project implemented at Learning for Life Charter School (LFLCS), an independent charter school serving at-risk youth across Monterey, San Benito, and Santa Cruz counties. LFLCS supports students who face barriers such as poverty, homelessness, foster care, and credit deficiencies, which often result in low engagement and limited postsecondary readiness. The project was developed to address these challenges by guiding juniors and seniors through the college application process and connecting them with financial aid and scholarship resources. A key component included organizing a field trip to California State University, Monterey Bay’s Educational Opportunity Program …

Hygiene Heroes: Strengthening Oral Hygiene To Reduce Central Line-Associated Bloodstream Infections In Pediatric Hematology/Oncology Patients, Sidney Clymer-Engelhart, Kirstie Shulman

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background: Central line-associated bloodstream infections (CLABSIs) impact pediatric patient outcomes, increasing mortality, hospital stays, and healthcare costs. At Sutter Medical Center Sacramento (SMCS), the CLABSI prevention bundle includes proper line care, dressing assessments, and hygiene practices, including twice-daily oral care, daily linen changes, and chlorhexidine gluconate (CHG) bathing. Sutter found their CLABSI bundle compliance at approximately 76–78%, with oral hygiene identified as the most frequent gap in care.

Aim: This quality improvement project, partnered with SMCS, targeted oral care compliance to enhance overall bundle adherence, strengthen staff-leadership communication, and ultimately reduce CLABSI rates in the hematology/oncology units. In a wider …

Fall Prevention In The Lobby Of The Emergency Department At Sutter Medical Center Sacramento, Tanya Rodriguez Duarte, Vaneza Espino, Roshni Hayer, Yajari Mendoza

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background: In 2024, Sutter Medical Center Sacramento (SMCS) reported 17 patient falls in the Emergency Department (ED) lobby, with 94% (n = 16) occurring in the triage area. Patients awaiting placement after triage are not classified as admitted and thus are not included in CMS’s inpatient fall reporting program. However, due to the known safety risk, SMCS ED leadership began tracking lobby falls locally and partnered with University of the Pacific nursing students to address this issue.. Aim: This quality improvement project aimed to reduce the incidence of falls in the ED lobby through enhanced fall risk identification, timely reassessment, …

The Kangaroo Care Project: Implementation Of Skin-To-Skin (Sts) In Sutter Medical Center, Sacramento, Neonatal Intensive Care Unit, Bianca Wong, Katherine Do, Martha Calero, Lydia Nambala

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background: Skin-to-skin contact, also known as kangaroo care or kangaroo mother care, is an intervention typically done after birth to promote physiologic stability, bonding, and breastfeeding.

Aim: The Kangaroo Care project aimed to increase the incidence of skin-to-skin contact in the neonatal intensive care unit at Sutter Medical Center, Sacramento.

Methods: A pre-survey was conducted to assess staff comfort with skin to skin. Interventions to increase skin-to-skin rates included staff e-learning, unplanned extubation mock codes, nurse champions, and a policy change to Sutter Medical Center, Sacramento’s handbook.

Results: TBD. Preliminary results indicated use of STS in the NICU and post-results …

Staying Ahead Of The Pressure: A Multimodal Intensive Care Unit Hospital-Acquired Pressure Injury Quality Improvement Project At Sutter Medical Center, Sacramento, Mijung Lim, Daniela Tobler, Raquel Youkhana

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background: Hospital-acquired pressure injuries (HAPIs) are a major quality and safety concern, particularly in the intensive care units (ICUs) where critically ill and immobile patients face elevated risk. At Sutter Medical Center Sacramento (SMCS), nine confirmed HAPIs and two under investigation were reported within the medical ICU, cardiac ICU, and neurosurgical ICU by May 2025, exceeding the hospital’s target and prompting a system-wide quality improvement initiative.

Aim: The aim of this project was to: (a) reduce ICU-acquired HAPIs to fewer than four cases per quarter by December 2025 and (b) increase nursing compliance with early and ongoing prevention strategies, including …

Improving Maternal Mental Health Awareness And Support In Perinatal Black And Latina Women, Jasman Hans, Lesly Carrillo, Kayla Huynh, Brianna Harrison

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background: Black and Latina women in California experience disproportionately high rates of perinatal mental health disorders due to limited access to care, stigma, and systemic inequities.

Aim: In collaboration with BeMomAware, this Quality Improvement project aimed to enhance maternal mental health literacy among Black and Latino individuals in the Oak Park community of Sacramento. The project sought to increase awareness, knowledge, and access to culturally appropriate mental health resources through an educational video and community session.

Methods: Interventions included a short educational video and an in-person community session providing culturally relevant information about perinatal depression and anxiety disorders, available resources, …

Computational Study On Protein Docking With Vascular Disease Application, Lohitha Reddy Shanigaram

Master's Theses

This thesis investigates how computational methods can help us understand protein docking and vascular diseases by integrating machine learning. The main goal of this research is to develop a system that can predict whether variants in the SOX17 gene are associated to Pulmonary Arterial Hypertension (PAH), a significant vascular condition. To do this, a dataset of 1,063 SOX17 variants was created using publicly available sources such as ClinVar, gnomAD, LOVD, and Ensembl. The study included cleaning and structuring the dataset, encoding genomic data and training a Random Forest classifier to classify variants as positive, negative, or unknown for disease association. …

An Audio Data-Driven Roadway Digital Twin And Its Underlying Framework For A Digitized Transportation Construction Environment, Anisha Deria, Pedro J. Chacon Dominguez, Yong-Cheol Lee, Jin W. Choi

Michigan Tech Publications

The increasing need to build and maintain transportation systems has led project managers to manage multiple projects simultaneously. Roadway projects often entail several miles of job site, making it difficult to keep track of progress and maintenance activities. To improve the situation, this study proposes an audio data-driven roadway digital twin framework for real-time and remote monitoring of construction projects. The latent characteristics of a digital twin required for establishing a digitized work environment were investigated. As a primary method of seamlessly linking virtual and physical environments, audio data classified and analyzed by deep neural network (DNN) has been employed …

Burnout And Compassion Fatigue Within Dispatch, Emily A. Mcfarren

Electronic Theses, Projects, and Dissertations

Continual exposure to trauma coupled with a general lack of

administrative support contributes to greater occupational risk for burnout and

compassion fatigue among first responders, causing many to leave the

profession. As the first line of communication for emergencies, dispatchers,

specifically emergency call takers are no exception. Yet, few studies have

investigated the prevalence and impact of burnout and compassion fatigue on

dispatchers in comparison to other first responders such as police, fire, or

emergency medical services (EMS). This study aimed to extend this line of

inquiry by surveying a stratified random sample of dispatchers working in

California dispatch centers …

Definition Of The 3d Position And Motion Status Of The Moving Heart Based On 2d Projections, Lawrence D. Orijuela

Electronic Theses, Projects, and Dissertations

This thesis presents a novel application of deep learning to the estimation of pulmonary vein coordinates using X-ray image pairs from a FORBILD Thorax phantom derived motion dataset. A Siamese neural network was developed to predict the 3D coordinates of one pulmonary vein at a time, specifically the Right Superior Pulmonary Vein (RSPV), Left Superior Pulmonary Vein (LSPV), Left Inferior Pulmonary Vein (LIPV), or Right Inferior Pulmonary Vein (RIPV), based on two-dimensional projection images.

The input data consisted of over 1.6 million grayscale X-ray image pairs across 1331 virtual patients, each annotated with ground truth 3D coordinates. To manage memory …

The Impact Of The Covid-19 Pandemic On National Hockey League Fan Attendance, Ramon E. Rivera

Electronic Theses, Projects, and Dissertations

The COVID-19 pandemic struck swiftly around the world, causing several societal functions and normalcies to adapt or shut down completely. This culminating project explores the effects of COVID-19 on arena fan attendance of the National Hockey League (NHL). This project was guided by the following three research questions: Q1 – How did the NHL arena closures affect fan attendance during the COVID-19 pandemic? Q2 – What factors influenced NHL fan arena attendance before the start of the COVID-19 pandemic? Q3 – What factors impacted the NHL arena fan attendance after the conclusion of the COVID-19 pandemic? An empirical model developed …

Rethinking The Performance Evaluation, Jason C. Crowley

Electronic Theses, Projects, and Dissertations

This paper delves into the complexities of performance evaluations within community college settings, aiming to inform a more effective approach specific to the unique characteristics of staff attracted to this work. Grounded in the understanding of validity in psychometric measurement and management theories, it seeks to identify evaluation criteria that prioritize enhancing the working environment which is known to impact overall organizational performance over traditional results-driven metrics to measure individual staff performance. Key theoretical underpinnings include discussions on validity, highlighting that measuring validity against the underlying goal of the performance evaluation (i.e., increased organizational performance) has been largely ignored in …

Adaptive Compulsion, Amanda A. Santos

Electronic Theses, Projects, and Dissertations

Adaptive

Adjective

Adap.tive ( ə-ˈdap-tiv)

of, relating to, or being a heritable trait that serves a specific function and improves an organism's fitness or survival

Compulsion

Noun

Com.pul.sion (kəm-ˈpəl-shən)

a repetitive behavior or mental act that a person feels driven to perform to alleviate the anxiety and distress caused by an unwanted thought or urge, known as an obsession.

For years we have lived in unprecedented times. From the worldwide quarantine in 2020 resulting from the pandemic, to our current US political crisis. The constant barrage of events is overwhelming and demoralizing.

The work in this gallery is a display …

Groundwater Arsenic Contamination In The Oro Grande Wash, Dalila Boice

Electronic Theses, Projects, and Dissertations

This study investigates the distribution of naturally occurring arsenic in groundwater within the Oro Grande Wash in San Bernardino County, California. Depth-discrete groundwater quality data were collected over multiple years using nested and Westbay monitoring wells. Water quality results showed higher levels of arsenic in the deeper aquifers, ranging between 600 feet and 1,000 feet below ground surface. Arsenic levels in these regions reached as high as 66 µg/L. At roughly 800 feet and below, water quality data from the wells reveal that arsenic concentrations exceeded the 10 µg/L maximum contaminant level (MCL) in 87% of cases. These data provide …

Using Luminescence Of Quartz Temper From Archaeological Pottery To Infer Wildfire Intensity In The Southwestern Us, Brooklyn D. Dib

All Graduate Theses and Dissertations, Fall 2023 to Present

The size and frequency of wildfires have increased recently, impacting ecosystems, communities, and human health. This research uses the heat-sensitive luminescence signals of quartz sand temper within archaeological pottery to record past wildfire conditions. Pottery sherds, which are fragments of archaeological pottery, from the forest floor in sites in New Mexico and Arizona were collected from different fire contexts (no fire exposure, historical fires, prescribed burns, and modern wildfires). These forests are primarily Ponderosa Pine with a grassy understory. The interior sand grains of each sherd sample were analyzed using optically stimulated luminescence, which dates when the mineral grains were …

Complementary Color Laser Illumination For Perceptual Contrast Enhancement In Structurally Colored Samples, Tomoshree Dash

All Theses

Structural color, a phenomenon arising from nanoscale interaction between light and materials, has the potential to unveil biological, chemical, physical, and mechanical characteristics of the sample. It enables direct visualization of the sample by human users with high spatiotemporal resolution. However, its impact is often constrained by challenges in the perceptual differentiation of subtle color variations. This thesis introduces complementary color laser illumination (C²LI) as an imaging technique that enhances color perception of the Human Visual System (HVS) by accessing the psychophysical non-linearities in chromatic color perception. C²LI offers a platform optimized for the HVS by …