Digital Commons Network^™

Validation Of A Scoring System To Predict Difficult Laparoscopic Cholecystectomy In A Tertiary Hospital In Saudi-Arabia: A Retrospective Study, Hazem A. Megahed, Lamiaa Z. Elmoursi, Rakan A. Al-Etebi, Nawaf M. Al-Enazi, Ahmed M. Lashin, Sarah Marie, Ahmed Taki-Eldin

Saudi Medical Journal

ABSTRACT Objectives: To confirm a preoperative scoring system devised by the Modified Randhawa Model. Methods: This retrospective study was performed in the period between October 2017 to October 2023 on every patients hospitalized for elective laparoscopic cholecystectomy in the Surgery Department, National Guard Hospital in Riyadh, Saudi Arabia. A preoperative scoring system, devised using the Modified Randhawa Model, was applied to each patient retrospectively. The preoperative score was compared to the intraoperative degree of difficulty. Results: The history of previous biliary inflammation, the impacted stone, the palpable gall bladder, the more gall bladder wall thickness, the higher body mass index …

Nutritional Knowledge Of The Phenylketonuria Diet Among Healthcare Providers In Saudi Arabia, Nouf A. Alghamdi, Rouba K. Naaman

Saudi Medical Journal

ABSTRACT Objectives: Phenylketonuria (PKU) is associated with detrimental impacts on factors contributing to the etiology of obesity, and metabolism disorders. Therefore, we hypothesized that physicians and dietitians demonstrate a sufficient level of nutritional knowledge of the PKU type diet. The aim of this study is to assess understanding of the PKU diet in relation to current guidelines among dietitians and metabolic physicians in Saudi Arabia. Methods: This study involved 238 participants, primarily Saudi and non-Saudi dietitians and metabolic physicians working in Saudi Arabia, who asked to complete an electronic questionnaire assessing their nutritional knowledge of the PKU diet. The questionnaire …

Identifying Barriers For Community Pharmacies As Vaccines For Children (Vfc) Providers In Rural Alabama: Opportunities For Solutions, Myra Bajwa

Honors Theses

Significant Human papillomavirus (HPV) vaccination disparities exist between rural and urban areas in the US. A primary contributor is low access to preventive care in rural areas. Among the most promising strategies to overcome this is increasing access through offering HPV vaccination in non-traditional, convenient health settings such as pharmacies. In rural areas, community pharmacies are trusted, convenient pillars of the community. In Alabama, community pharmacies are eligible for enrollment in the Vaccines for Children (VFC) Program, a federally-funded program that provides free vaccines to children and adolescents under 18 years old who are uninsured, underinsured, American Indian, or Alaska …

Best Practice Recommendations For Anesthesia Providers In Preventing Postoperative Delirium In The Geriatric Population Undergoing Non-Cardiac Surgery, Ana Primeaux, Ashanti Reed

Doctoral Projects

Postoperative delirium (POD) is a significant and preventable complication in geriatric patients undergoing non-cardiac surgery. Such complication is associated with foreseeable consequences, such as prolonged hospitalization, long-term cognitive decline, increased morbidity and mortality, and increased costs. Despite the emerging awareness of evidence-based nonpharmacologic and pharmacologic interventional strategies, POD still represents a clinical challenge for anesthesia providers.

Currently, there is a lack of clinical guidelines to guide formalized education and evidence-based interventions on POD prevention across anesthesia practice settings. Consequently, there is a critical need to raise awareness that the lack of clinical guidelines and the high incidence of POD may …

Advancing Anesthesia Provider Proficiency In Airway Assessment Using Point-Of-Care Ultrasound: An Osce-Based Educational Initiative, Austin Fike, Trevor Jordan, Sam Sherrill Iii

Doctoral Projects

Airway management is one of the fundamental pillars of anesthesia. Traditionally, tools such as the Mallampati classification and the thyromental distance are used for airway assessment in the perioperative area. However, often, these methods fail to reliably predict difficult intubations. The use of point-of-care ultrasound (POCUS) has emerged as a valuable adjunct in airway assessment. However, a knowledge deficit exists among anesthesia providers regarding its application in airway assessments for perioperative adult patients. This doctoral project addressed the knowledge deficit in POCUS airway assessment among Certified Registered Nurse Anesthetists (CRNAs) and Student Registered Nurse Anesthetists (SRNAs) through the development and …

Factors Shaping Data-Based Decision-Making: The Role Of Self-Efficacy, Anxiety, And School Culture In Mississippi’S State Tested Subjects, Cymone E. Bradford

Dissertations

This quantitative study examined the factors influencing Mississippi state-tested teachers’ engagement in data-based decision-making (DBDM). The purpose of the study was to explore how self-efficacy, anxiety, and school culture shape teachers’ experiences using data to guide instruction. A researcher-developed instrument measuring four constructs self-efficacy in data interpretation, anxiety related to DBDM, self-efficacy and engagement in DBDM, and school culture and DBDM was administered to Mississippi teachers of state-tested subjects. Descriptive statistics, a one-way ANOVA, correlation analysis, and multiple regression were used to analyze the data.

Results revealed significant differences in demographic characteristics of age and frequency of data use when …

Institutional Sustainability In Ai Governance: Comparing Paths In The Eu, Japan, And Taiwan, Kuan-Wei Chen

Yearbook of Antitrust and Regulatory Studies

This article explores the concept of institutional sustainability in AI governance by comparing the approaches in the European Union, Japan, and Taiwan. It begins by arguing that the relationship between AI and sustainability extends beyond environmental concerns, encompassing the sustainability of governance institutions themselves. The article posits that institutional sustainability, referring to the capacity of governance frameworks to remain effective over time, is essential in the context of rapidly evolving and future-oriented AI governance. The analysis proceeds by examining the EU’s strategy of normative anchoring through legal codification, Japan’s agile governance model based on collaboration and coordination, and Taiwan’s digital …

Development And Test Of An Automatic Mass Balancing System For Cal Poly's Spacecraft Attitude Dynamics Simulator, Cameron B. Zorio

Master's Theses

The Cal Poly Spacecraft Attitude Dynamics Simulator (SADS) is an ongoing project to develop an air-bearing platform capable of recreating on-orbit rotational dynamics with near frictionless and torque-free rotations. However, any offset between the platform's center of rotation and its center of mass will introduce a torque due to gravity.

This thesis presents the design, implementation, and experimental evaluation of a low-cost, automatic mass balancing system for the SADS to address this challenge. A new modular sliding mass system was developed that overcomes issues faced in previous iterations of the SADS, providing real-time positional control of the masses and a …

Marsanywhere: Dataset And Cross-View Diffusion Model For Satellite-To-Ground View Synthesis With Mars Data, Benjamin T. Hinchliff

Master's Theses

Satellite-to-ground view synthesis aims to create a realistic ground view image from a corresponding satellite view image. This is a well-studied problem for street level imagery, with good results being achieved by using modern image synthesis techniques such as diffusion models. However, despite the public availability of satellite and ground level imagery on Mars, these techniques have yet to be applied to the domain due to difficulties in collating and processing the data into a usable form. We address this deficiency by creating a dataset consisting of ground view panorama imagery from the Perseverance rover, along with associated satellite view …

Why The Long Face? The Distribution And Niche Of The Imperiled Narrow-Faced Kangaroo Rat (Dipodomys Venustus), Garrett L. Gimbel

Master's Theses

Distribution models provide a practical use case of connecting ecological niche theory with species’ occurrence and assemblages. By explicitly linking Hutchinson’s “niche space” with geographic space researchers can gain valuable information on a species’ niche characteristics and interactions, thereby informing conservation and management practices. The narrow-faced kangaroo rat (Dipodomys venustus) is a highly understudied kangaroo rat species endemic to the central coast of California and is an ideal species to explore niche theory in distribution modeling. Three subspecies are currently recognized: The Santa Cruz kangaroo rat (D. v. venustus), the elephant-eared kangaroo rat (D. v. …

Using Hydraulic And Hydrologic Modeling To Determine Scour At Toro Creek Under Climate Change Conditions, Gabriel E. Alaniz

Master's Theses

ABSTRACT

This study evaluates bridge scour at the Toro Creek crossing of Highway 1 in Morro Bay, California, under present conditions and future climate conditions with more frequent extreme rainfall events. California infrastructure is becoming increasingly vulnerable to extreme storm events and increased intense precipitation events brought by climate change. This analysis focuses on the calculation of scour for both the northbound and southbound spans. Highway 1 plays a vital role in California’s coastal transportation infrastructure by carrying more than 20,000 vehicles daily (Caltrans, 2017). In this thesis, a hydrological model (HEC-HMS) is used to simulate runoff under present-day and …

The Edge Of The World: An Examination Of The Wild West In California, 1840-1880, Chloe J. Cushing

Master's Theses

“The Edge of the World” revolves around the history of the Wild West in California through the lens of Richard Maxwell Brown’s Western War of Incorporation theory. Rather than being a mythology sensationalized by Hollywood and literature, for the Golden State, the Wild West was a very real and tangible part of its early-American era, characterized by U.S. imperialism, high murder rates, anti-authoritarianism, and other rampant forms of chaos that affected the state for generations. By examining the conditions and effects of the late Mexican period, the Gold Rush, Confederate sympathizers, and the Southern Pacific Railroad, this thesis highlights the …

Supporting The Efficacy Of Admission Counselors When Working With Neurodivergent Students: A Study For An Equitable Review Process, Rose Llanos

Graduate Student Dissertations, Theses, Capstones, and Portfolios

The focus of the study was to investigate the effectiveness of utilizing a universal design learning training module for college admission professionals to help assess student fit during the application review process. The conceptual framework in the research design followed that of the Universal Design of Learning (UDL) framework, which upholds the United Nations Sustainable Developmental Goals (UN-SDG), specifically goal four of quality education and goal 10 of reduced inequalities. The hypothesis for using an equitable training module is that an improved understanding of working with diverse students will lead to more confident admission professionals holistically recommending an admission decision …

Enhancing Crna's Knowledge Of Radiation Safety Through Online Education, Angela Iledan, Madeline Pousson

Doctoral Projects

Although ionizing radiation is frequently used in anesthesia-related procedures, many CRNAs receive minimal training in radiation safety principles and protective measures. This knowledge gap increases the risk of cumulative radiation exposure for providers and patients. To address the issue, this doctoral project developed and implemented an online educational intervention designed to enhance CRNAs’ understanding of radiation safety, ultimately promoting safer practices in radiation-prone environments.

The doctoral project follows a QI and EBP approach that incorporated diverse adult learning styles to enhance engagement and knowledge retention of CRNAs. The online educational module was designed and delivered to CRNAs that currently practice …

Self-Determination Through Children's Rights: Resisting The Paradoxical Pretext Of Parents' Rights Legislation, Jeremiah Chin

Washington Law Review

Washington state law balances the interests of parents and the state in education, healthcare, and the general wellbeing of children. Despite the fact that children are at the center of emerging controversies, children’s rights are rarely discussed in state legislation debating the obligations and relationships between the state of Washington and parents. In education, for example, RCW 28A.605.005 finds “[p]arents are the primary stakeholders in their children’s upbringing.” While this may be true relative to the state, it overlooks the fact that children are the primary actors, agents, and rights bearers in their own personhood. This Article therefore considers ongoing …

Genodermatosis Among The Southwestern Saudi Population: The Pattern And The Need For A Premarital Genetic Screening Protocol, Hamad A. Alfahaad

Saudi Medical Journal

ABSTRACT Objectives: To characterize the clinical and genetic spectrum of genodermatoses in Southwestern Saudi Arabia, the present study examines the impact of consanguinity on this particular population, and proposes a tailored premarital genetic screening protocol. Methods: A retrospective cross-sectional study of 32 patients diagnosed with genodermatoses during the study period at a tertiary hospital (King Khalid Hospital, Najran) were included. Genetic screening was performed for patients with suspected genodermatoses based on clinical findings, using whole-exome sequencing (WES), specifically employing next-generation sequencing (NGS) technology. Clinical and genetic analysis data were extracted from medical records. Results: Among 32 patients diagnosed with genodermatoses, …

Accessible Preservation: Developing A Low-Cost, Iiif-Compliant Workflow For Small Art Collections, Robyn Palescandolo

Theses

This project explores the development of an affordable, standards-based digital collections management system designed for small galleries, independent artists, and emerging institutions. Using the artist’s own studio collection as a case study, the research integrates accessible hardware and open-source technologies, including the International Image Interoperability Framework (IIIF), Artwork Archive, GitHub Pages, and the Internet Archive, to establish a transparent, replicable workflow for cataloguing and publication. The project demonstrates how interoperability, metadata consistency, and open access can be achieved without reliance on costly proprietary systems, such as TMS Collections or PastPerfect.

The workflow includes high-resolution image capture, 3D scanning, data normalization, …

An Update On Novel Taxa And Revised Taxonomic Status Of Bacteria Isolated From Human Clinical Specimens Described In 2024, Arianna Carella, Karen C. Carroll, Erik Munson

Clinical Lab Sciences Faculty Research and Publications

Knowledge of novel and revised bacterial taxonomy facilitates routine operations in the medical microbiology laboratory and communication with important stakeholders. Notable new gram-positive taxa accepted in 2024 include the clinically significant Staphylococcus brunensis sp. nov., as well as Streptococcus suis subsp. hashimotonensis subsp. nov., which can be delineated from other Streptococcus suis subsp. by possession of the Lancefield group A antigen. Four novel Enterobacterales species are discussed, plus a novel eighth family Gallaecimonadaceae. One of these, Providencia huashanensis sp. nov. is clinically significant and harbors multiple genetic determinants that encode antimicrobial resistance mechanisms. Stenotrophomonas forensis sp. nov., derived from …

Llm-Assisted Cwe Identification, Severity Assessment, And Vulnerability Description Generation, Mohammad Jalili Torkamani

School of Computing: Dissertations, Theses, and Student Research

Identifying the underlying weakness types and assessing their severity using CWE and CVSS standards are critical steps in software vulnerability management. While timely assessment of vulnerabilities mitigates the impact of severe security incidents, automating joint CWE identification and severity assessment remains challenging due to the heterogeneity of vulnerabilities across different code granularities and programming languages. In addition, generating vulnerability descriptions is often time-consuming, as it requires extensive manual review, validation, and writing by security experts.

In this thesis, we leverage the capabilities of Large Language Models (LLMs) to automate the identification of CWE identifiers and the assessment of their severity …

Exploring The Relationship Between Job Satisfaction And Servant Leadership In Community Corrections: A Probation Officer’S Perspective, Shamira B. Gambrell

Education Doctoral

Probation officers work in demanding environments marked by high caseloads, role conflict, and organizational pressures that can negatively affect job satisfaction and workforce stability. Leadership practices at the frontline supervisory level play a critical role in shaping these experiences, yet limited empirical research has examined servant leadership within community corrections. The purpose of this quantitative correlational study was to examine the relationship between probation officers’ perceptions of servant leadership demonstrated by their direct supervisors and their level of job satisfaction.

Data were collected from probation officers affiliated with departments connected to the American Probation and Parole Association using an anonymous …

Curvilinear Image Segmentation Using Multiscale Variational U-Net, Rebekah Fortes

LSU New Orleans Theses and Dissertations

Segmentation of curvilinear structures such as water contours, cracks in cement, and vascular networks in biomedical imaging, poses unique challenges due to extreme class imbalance, irregular morphology, low contrast against complex backgrounds, and the need to preserve global connectivity while detecting fine-scale details. We propose a Multiscale Variational U-Net (MSVU-Net) architecture designed specifically to address these challenges. The model integrates multiscale convolutional filters to capture both global context and local detail, while embedding a variational model in the bottleneck layer to enhance structural representation. To mitigate class imbalance and improve fidelity, the network optimizes a hybrid loss function that combines …

Pas De Deux, Emmalea Bellemare

LSU New Orleans Theses and Dissertations

In New York City, 2004, 20-year-old Michael Kurotori is a professional ballet dancer and instructor working for the prestigious Brigid Ballet Academy. Under the supervision of his mentor, Prima Ballerina Anya Vladislav, Michael is quickly approaching the top of his career - until a new student threatens to steal Anya’s attention away. Suddenly, Anya is missing. And Michael, hiding dark secrets behind his mask of perfectionism, is approached by mysterious stalker, Thomas Wolf with evidence of his involvement…

“Overture” is the first episode of PAS DE DEUX, an eight-hour story about honor, identity, and the effect of trauma and mental …

Coupled Machine Learning Models: Combining Observations And Numerical Analysis In A Physics-Regularized Approach, Austin B. Schmidt

LSU New Orleans Theses and Dissertations

This dissertation investigates surrogate modeling for fixed-location environmental forecasting using novel data-combination techniques. The work surveys the landscape of observational measurements and numerically generated data, identifying similar research and gaps in current methodologies. The ratio-coupled training framework is introduced to combine two data sources per predicted feature through a tunable parameter that weights training signal strength. An optimization scheme is developed to simultaneously tune surrogate weights and the coupled signal ratio, allowing relative influence between signals to act as an explicit regularizer. Three case studies demonstrate the methodology and approach in a variety of contexts. The first study is based …

Peptoid-Based Molecular Analysis Utilizing High-Speed Molecular Dynamics Methods, In Chul Hwang

LSU New Orleans Theses and Dissertations

Polypeptoids are N-substituted glycine polymers, which differ from peptides in the placement of the side chain being present on the amide nitrogen rather than the backbone C_α. While both peptoids and peptides are composed of linked amino acids, the structural changes resulting from the differing origin of the side chain leads to distinct backbone structure, as well as remove the chirality found in the peptide structure. These differences lead peptoids to have different physiochemical and biological properties, such as being resistant to proteolysis and diverse three-dimensional structures that are not observed in peptides. With the shifting of the …

Dual-Stage Ultrasound Application For Rice Bran Protein Extraction: A Novel Method To Improve Yield, Functional Properties, And Nutritional Profile, Saydul Md Safwa, Nikitha Modupalli, Md Mahfuzur Rahman

Food Science Faculty Publications and Presentations

While ultrasound-assisted protein extraction is well-studied, the application of ultrasound in both the extraction and precipitation stages has not been explored. This study explored the ultrasound (U)-assisted alkaline extraction (AE) at pH 9.5 and ultrasound-assisted isoelectric precipitation (UIP) at pH 3.5 on the rice bran protein yield, functionality, and nutritional quality. The UAE and conventional precipitation (UAE-IP) yielded the highest protein yield of 65.7 %, while conventional extraction yielded 38.9 %. FTIR showed that UAE-IP increased beta-sheets by 96.8 % while AE-UIP decreased the alpha-helices by 42.4 %. Although UAE-IP showed no significant change in surface hydrophobicity, UAE-UIP decreased it …

Disruption Of The Placenta–Brain Axis In Transgenic Mice Lacking Serotonin Transporter (Sert) In Trophoblast Cells, David T. Ellenberger, Zhen Lyu, Rosalind T. B. Herrington, Jessica A. Kinkade, Gustavo W. Leone, Ji Ying Sze, Nathan J. Bivens, R. Frank Baker, R. Michael Roberts, Trupti Joshi, Cheryl S. Rosenfeld

Biomedical Sciences

Serotonin reuptake inhibitors (SSRIs) are commonly prescribed to pregnant women experiencing depression. Such drugs, however, might adversely affect placenta and fetal brain development. Parietal trophoblast giant cells (pTGCs) in the mouse placenta are postulated to internalize maternal serotonin (5-HT) via transport through SERT, encoded by Slc6a4, and to provide the initial source of 5-HT to the emerging brain via the placental–brain axis. Genetic deletion of Slc6a4 in pTGCs has been hypothesized to impact placental and fetal brain development. A transgenic mouse line with high-affinity SERT, encoded by Slc6a4, was selectively deleted by pairing mice with Cre recombinase linked …

Effects Of Injectable Trace Mineral Timing On Calf Performance And Health Indicators, Marie E. Goulais

Graduate Theses and Dissertations

One hundred and fourteen calves (average BW= 224kg ± 89kg) were utilized to evaluate the effects of injectable trace mineral (ITM) administration on calf performance and health when administered pre-weaning and at weaning. Calves were blocked by sex, stratified by age, and randomly assigned to one of the following treatment groups: 1) no ITM injection (CON), 2) ITM administered 28 d before weaning (PW), or 3) ITM administration at weaning (WEAN). Calves were vaccinated against respiratory pathogens on D-28 and D0. At weaning, cattle were transported to a local auction market, held overnight and returned the following morning. Body weight …

Finding Utopia: An Examination Of Pedagogical Approaches To Teaching Utopianism In U.S. College Classrooms, Brittany Page Brake

Dissertations

This dissertation investigates how, and if, utopianism is being taught in college classrooms across the United States. Long considered impractical, overly idealistic, and/or politically dangerous, utopianism has been largely marginalized in political science and American culture. However, this project finds that there are instructors teaching utopianism and they are using the concept to challenge students to think differently about governance, justice, and institutional design. Drawing from political theory literature, course syllabi submitted by faculty from different U.S. universities, interviews with instructors, and personal case studies of my own courses at Central State University and Manchester University, I explore how utopian …

Three Funny Things: A Multicultural Validation, Jon Hook

Dissertations

This dissertation evaluated the efficacy of Three Funny Things, a humor-based positive psychology intervention (PPI) designed to enhance subjective well-being (SWB) and reduce depressive symptoms. Subjective well-being was operationalized through self-reported happiness, measured by the Authentic Happiness Inventory (AHI), and depressive symptomatology, measured by the Center for Epidemiologic Studies Depression Scale (CES-D). A repeated-measures design was employed across three time points: baseline (Time 1), post-intervention (Time 2), and one-month follow-up (Time 3). Participants (N = 126) represented a racially diverse community sample, including individuals identifying as White (61%), Black or African American (18%), Hispanic or Latino/a (11%), Asian (6%), and …

Development Of The Hydrogeology Concept Inventory And Exploration Of Its Embedded Spatial Thinking Components, Oluwarotimi Akindele Popoola

Dissertations

Hydrogeology is a sub-discipline of geoscience that deals with the occurrence and movement of water and possible contaminants within the subsurface. Understanding basic principles of hydrogeology is important for applying practical solutions to hydrogeology problems. Hydrogeology is a visuospatial discipline in which spatial thinking skills play a significant role. To assess the hydrogeology knowledge of students, a valid and reliable assessment instrument with spatial components is required.

This research was conducted as a series of quantitative studies with three goals: (1) to develop the Hydrogeology Concept Inventory (HCI), a valid and reliable measure of upper-level undergraduate students’ hydrogeology knowledge, (2) …