Digital Commons Network^™

Phosphorus Soprtion Experiments: Impacts On Water Column Phosphate Concentrations In Utah Lake, Rebecca Layne Butters

Theses and Dissertations

Utah Lake, located in north-central Utah, USA, is a freshwater lake with a large surface area, shallow depth, and phosphorus-rich sediment with significant water-sediment interaction. These factors cause unique phosphorus behavior relative to other lake ecosystems, governed by sediment-water interactions. We hypothesize that benthic sediments and suspended solids act, by sorption processes, to maintain water column P concentrations that are largely insensitive to P inflows. We conducted a Phosphorus Addition Experiment to characterize sorbed P fluxes in the lake. Our experimental procedure included bench-scale laboratory experiments testing Utah Lake water and sediment with dilute and augmented P levels, as well …

Transferable User-Friendly Machine Learning For Normal Boiling Point Prediction, Frank Tafadzwa Mtetwa

Theses and Dissertations

The estimation of thermophysical properties of chemical compounds holds considerable importance across a multitude of fields, ranging from material science to process design. Among these properties, the normal boiling point (NBP) stands out as a pivotal parameter in scientific and engineering contexts, as it elucidates the state of a substance under standard conditions commonly encountered in nature. Additionally, NBP is extensively documented in various reference materials and databases. Given its paramount importance and widespread availability, prediction methodologies for other properties such as critical temperature, liquid density, vapor pressure, surface tension, liquid viscosity, liquid thermal conductivity, and flash point often rely …

Willingness And Preferences For Long-Acting Injectable Prep Among Us Men Who Have Sex With Men: A Discrete Choice Experiment, Sam Wilson Cole, Jennifer L. Glick, Nicola B. Campoamor, Travis H. Sanchez, Supriya Sarkar, Vani Vannappagari, Alex Rinehart, Keith Rawlings, Patrick S. Sullivan, John F.P. Bridges

School of Public Health Faculty Publications

Introduction Cabotegravir long-acting injectable HIV pre-exposure prophylaxis (LA-PrEP) was shown to be safe and effective in multiple clinical trials. Increasing uptake and persistence among populations with elevated risk for HIV acquisition, especially among men who have sex with men (MSM), is critical to HIV prevention. Objective This analysis aims to understand potential users' preferences for LA-PrEP, with audience segmentation. Design Willingness to use and preferences for LA-PrEP were measured in HIV-negative, sexually active MSM in the 2020 American Men's Internet Survey. Respondents answered a discrete choice experiment with paired profiles of hypothetical LA-PrEP characteristics with an opt-out option (no LA-PrEP). …

Targeting Genomic Receptors In Voided Urine For Confirmation Of Benign Prostatic Hyperplasia, Mathew Thakur, Vivek S. Tomar, Emma Dale, Leonard G. Gomella, Charalambos Solomides, Oleksandr Kolesnikov, Scott W. Keith, Hector T. Navarro, Olivia Dahlgren, Michael Chaga, Edouard J. Trabulsi

Department of Radiology Faculty Papers

Objectives

The objective of this study is to validate a hypothesis that a non-invasive optical imaging assay targeting genomic VPAC receptors on malignant cells shed in voided urine will represent either benign prostatic hyperplasia (BPH) or prostatic cancer (PCa). Risk for BPH in men 50–70 years old is 50–70% and PCa is 17%. BPH and PCa can coexist in 20% of men with BPH. Most commonly practiced methods to diagnose BPH do not distinguish BPH from PCa.

Patients (or Materials) and Methods

Males with BPH (N = 97, 60.8 ± 6.3 years, prostate-specific antigen 0.7 ± 0.4 ng/mL) and …

Edna Metabarcoding And The Construction Of Primers For The Identification Of Gulf Of Mexico Elasmobranchs And Selachii, Isabella Lima

Honors Projects

eDNA, or environmental DNA, is found free-existing in any environment. It can be extracted from its environment and used to identify organisms that were recently in the area. In recent years, eDNA metabarcoding has been used to help examine communities for overall species presence and biodiversity. This capstone sought to create a mock proposal for an eDNA survey of Gulf of Mexico elasmobranch and Selachii species due to their overall decline in numbers. Additionally, general and discriminatory PCR primers were created in-silico and assessed for initial quality. This capstone documents the feasibility of an eDNA study, constructing the necessary primers, …

The Unconstitutionality Of Underfunded Public Defender Systems, Braden Daniels

Senior Honors Theses

When a defendant is ineffectively represented by a public defender due to an underfunded public defender system, a defendant whose public defender provides him only cursory representation is entitled to a new trial only if blatantly innocent. The U.S. Supreme Court should follow its precedent and declare systemically underfunded public defender systems unconstitutional, with cases meriting reversal when the underfunding is to blame for unreasonable attorney errors, regardless of prejudice. This stems logically from the Court’s holdings in Gideon v. Wainwright, Strickland v. Washington, and United States v. Cronic. Many have argued for the reversal or modification …

A Study Of Mental Health Conditions Among Elite Level Athletes, Sawyer Magnett

Senior Honors Theses

This paper examines the effects of stigmatization on elite level athletes’ mental health and overall wellbeing. Within this study, elite level athletes will be defined as those that participate in collegiate programs and the levels beyond that. Stigma is generally defined as negative beliefs towards a particular group of people or a state of being. When stigma is prevalent within athletic settings, many athletes tend to be silent about the struggles they face daily. Stigma is manifested either publicly or personally in the arena of elite level athletics due to preconceived notions within this demographic. Through close examination of current …

A Phenomenological Study Of The Cross-Cultural Transitions Of University-Level Missionary Kids, Naomi Walter

Senior Honors Theses

The cultural identity and transitions of a Third Culture Kid (TCK) is often a matter of discussion and debate. The purpose of this phenomenological study is to understand the factors that influence the identity and the cross-cultural transitions of university-level TCKs, with a specific focus on Missionary Kids (MKs). The study involved semi-structured interviews of seven undergraduate university students, over the age of 18 and currently involved in the university's Missionary Kid Scholarship program. Results revealed several key themes including identity, community, and friendship expectations that influenced the transition process. Participants generally displayed a positive transition, and the findings provide …

An Approach To Identify Gene-Environment Interactions And Reveal New Biological Insight In Complex Traits, Xiaofeng Zhu, Yihe Yang, Noah Lorincz-Comi, Gen Li, Amy R Bentley, Paul S De Vries, Michael Brown, Alanna C Morrison, Charles N Rotimi, W James Gauderman, Dabeeru C Rao, Hugues Aschard

Faculty, Staff and Student Publications

There is a long-standing debate about the magnitude of the contribution of gene-environment interactions to phenotypic variations of complex traits owing to the low statistical power and few reported interactions to date. to address this issue, the Gene-Lifestyle Interactions Working Group within the Cohorts for Heart and Aging Research in Genetic Epidemiology Consortium has been spearheading efforts to investigate G × E in large and diverse samples through meta-analysis. Here, we present a powerful new approach to screen for interactions across the genome, an approach that shares substantial similarity to the Mendelian randomization framework. We identify and confirm 5 loci …

Road To A Chemistry-Specific Data Management Plan, Daniela Adele Hausen, Ann-Christin Andres, Jochen Ortmeyer, Sonja Herres-Pawlis

Copyright, Fair Use, Scholarly Communication, etc.

In order to develop a discipline-specific data management plan (DMP) template, it is important to obtain information from researchers. For a chemistry-specific template, NFDI4Chem conducted a series of interviews with 27 participants and used data from the RDA WG Discipline-specific Guidance for DMP online survey.

The interviews showed that the implementation of research data management in everyday work is a big challenge. Key findings from the interview series highlight challenges in implementing FAIR principles, with a focus on “Findability” and “Reusability.” The importance of linking physical samples and data in chemistry is emphasised, with discussions on storage, archiving, and the …

Lived Experiences Of Young Adults Exposed To Negligent And Permissive Parenting Styles, Jessica Hernandez Sanchez

Walden Dissertations and Doctoral Studies

The purpose of this phenomenological qualitative study was to explore the lived experiences of young adults of permissive and negligent parenting styles and their experiences of resilience and self-sufficiency. The theoretical frameworks were Lazarus and Folkman’s diathesis stress model and Baumrind’s theory of parenting styles. Data were collected from semi-structured interviews with 20 individuals ages 18–25 who met the inclusion criteria and parenting style experiences for this study. Data were transcribed, coded, and analyzed and three themes and seven subthemes emerged. The interpretation of the findings led to five themes: (a) the impact of attachment and parenting styles on the …

Hospital Staff Members’ Lived Experiences Of Facilitating Yalom Focus Groups With Inpatient Adults In Psychiatric Units, Yemisi T. Abiona

Walden Dissertations and Doctoral Studies

An increase in inpatient psychiatric admissions across the United States with a decrease in funding necessitated a need to investigate clinical and cost-effective interventions to meet the demands. Research indicated that therapeutic group interventions are clinically sound and cost-effective. However, there are few evidence-based group interventions designed for acute and chronically ill psychiatric patients. The objective of this qualitative phenomenological study was to explore the lived experiences of Yalom group facilitators to determine whether the group could be further researched and adopted as a specialized group intervention for this population. Existential theory served as the theoretical framework for this study. …

Methods For Computing Rovibrational Spectral Data With Applications To Inorganic Oxides And Hydrocarbons, Alexandria Watrous

Honors Theses

Computational chemistry focuses on finding solutions to the time-independent Schrödinger equation for systems of interest to study their molecular properties such as rovibrational spectral data. Any molecule containing more than one electron cannot be solved explicitly but coupled cluster theory offers one of the best approximations. One such application of this method is to molecules of astrochemical interest to support observation and experimental data. Chapters 2, 3, and 4 look at the performance of new couple cluster theory methods including composite and hybrid methods for ground and excited state rovibrational data. Chapters 5 - 9 use the previously mentioned methods …

Professors' Informal Learning In Their Workplace: The Case Of Nepali University, Sabina Baniya Chhetri, Prakash C. Bhattarai

The Qualitative Report

This study explores how Nepali professors engage in informal learning practices in their workplace and identify the potential for creating a conducive learning environment We conducted in-depth interviews with five Nepali professors using a qualitative case study approach to explore their informal learning experiences at their workplace. The study revealed that professors engage in informal learning through various methods, such as enacting job roles, reflecting on work experiences, interacting with colleagues, seeking feedback, and initiating self-learning through reading, online courses, professional networks, and formal training programs. However, organizational constraints hindered their self-initiated learning activities. Future research can examine the organization …

Understanding Community Engagement As A Tool For Equitable Project Outcomes: Lessons From Domino Park And Hudson Yards Public Square, Sanjukta Hazarika

Harrisburg University Dissertations and Theses

This thesis explores the significance of community engagement in urban planning within the project management framework. In the face of intricate challenges in contemporary urban environments, adopting effective project management strategies prioritising the community voice has become crucial. This study inquires into the methods, barriers, and the scope of using community engagement as a tool for successful and fair project outcomes in urban environments. The aim of this thesis is to provide valuable insights and practical recommendations to practitioners in the fields of urban planning, project management, and urban policymaking. There is a growing recognition that inclusive and participatory processes …

Development Of A Molten Salt Reactor Design And Design Framework For Overall Reactor Performance Prediction And Optimization, Andrew William Larsen

Theses and Dissertations

This dissertation introduces a novel approach to nuclear reactor design, emphasizing molten salt reactors (MSRs) to address the global need for safer, more efficient, and sustainable energy sources. It confronts the inherent challenges of nuclear fission reactors--proliferation risks, cost efficiency, waste management, and passive accident prevention--by developing an innovative MSR model and a machine learning (ML)-based optimization framework. The molten salt microreactor (MSMR), devised by researchers at Brigham Young University, utilizes thermally conductive plates for efficient heat dissipation during operational anomalies, ensuring safety within operational limits. This design was rigorously tested using STARCCM+ for fluid dynamics modeling and RELAP5-3D for …

Barriers To Contract Negotiation In Construction Projects And Strategies To Foster Trust, Luke Thomas Peterson

Theses and Dissertations

This study explores the impact of contract negotiation within construction projects by utilizing a modified Delphi approach, which integrates interviews alongside the traditional Delphi surveys. This methodology combines the structured feedback loop of Delphi surveys with the qualitative depth provided by interviews. This offers a more comprehensive understanding of contract negotiation dynamics in construction projects. It identifies systemic challenges as primary barriers to negotiation, highlighting the need for a cultural shift towards prioritizing negotiation and flexibility within the industry. The study reveals that time and cost considerations are relatively minor compared to interpersonal skills and trust-building. It cautions against damaging …

An Ultra Energy-Efficient Hardware Platform For Neuromorphic Computing Enabled By 2d-Tmd Tunnel-Fets, Arnab Pal, Zichun Chai, Junkai Jiang, Wei Cao, Mike Davies, Vivek De, Kaustav Banerjee

Faculty, Staff and Student Publications

Brain-like energy-efficient computing has remained elusive for neuromorphic (NM) circuits and hardware platform implementations despite decades of research. In this work we reveal the opportunity to significantly improve the energy efficiency of digital neuromorphic hardware by introducing NM circuits employing two-dimensional (2D) transition metal dichalcogenide (TMD) layered channel material-based tunnel-field-effect transistors (TFETs). Our novel leaky-integrate-fire (LIF) based digital NM circuit along with its Hebbian learning circuitry operates at a wide range of supply voltages, frequencies, and activity factors, enabling two orders of magnitude higher energy-efficient computing that is difficult to achieve with conventional material and/or device platforms, specifically the silicon-based …

Demystifying The Notion Of Charisma: Micro-Ethnography On A Veteran-Teacher’S Classroom Practices, Olga Gould-Yakovleva Ph.D.

The Qualitative Report

This IRB-approved and grounded in social semiotics theory micro-ethnographic case study was conducted within a longitudinal ethnography project and is focused on the teaching style of one veteran teacher in a public urban elementary school in the North-Eastern United States. The data in this qualitative micro-ethnographic case study were collected from multiple sources (e.g., field notes, observations, interviews, audio- and video-recordings). The interview data were analyzed using Saldaña’s (2013) thematic and value coding. The focus research participants’ verbal and non-verbal behaviors during her interactions with her students were analyzed in accordance with the micro-ethnographic research traditions. The above data were …

The George-Anne Reflector Magazine Newsletter, Georgia Southern University

George-Anne Media Group: Newsletters & Magazines

No abstract provided.

Quantifying Landscape Change Using Different Spectrometers, Spectral Unmixing, And Uas Imagery, Bianca Cilento

Theses

Climate-driven land cover change and biodiversity loss are problems impacting food security, economic growth, human health, and cultural identity of arctic environments, such as Stordalen Mire, Abisko, Sweden (68.35’ N, 18.82’ E). The sensitive nature of these remote areas necessitates large-scale, less-invasive monitoring of environmental change via remote sensing combined with low-impact, cost-effective field validation of remote sensing products. This project assesses the accuracy and utility of two low-cost spectrometers, the Sherwin-Williams® ColorSnap® and the National Aeronautics and Space Administration (NASA) Science and Technology Education for Land/Life Assessment (STELLA-Q), in conjunction with ArcGIS and GoogleEarth Engine programs and aerial imagery …

Driver’S Accident Behavioral Analytics Using Ai, Mohamad Amin Obaid

Theses

This comprehensive dissertation constitutes a significant contribution to the ongoing global discourse on road safety. Through a judicious utilization of advanced data analysis techniques, with a particular emphasis on machine learning applications, this research endeavors to address and bridge crucial gaps in our comprehension of multifaceted aspects related to road safety. Specifically, the study aims to delve into the intricacies of accident severity factors, driver characteristics, vehicle attributes, and the complex dynamics of road conditions. By systematically exploring these dimensions, the research endeavors to unearth more nuanced and precise relationships that influence accident outcomes. Moreover, a particular focus is dedicated …

Single-Cell T-Cell Receptor Repertoire Profiling In Dogs, My H Hoang, Zachary L Skidmore, Hans Rindt, Shirley Chu, Bryan Fisk, Jennifer A Foltz, Catrina Fronick, Robert Fulton, Mingyi Zhou, Nathan J Bivens, Carol N Reinero, Todd A Fehniger, Malachi Griffith, Jeffrey N Bryan, Obi L Griffith

2020-Current year OA Pubs

Spontaneous cancers in companion dogs are robust models of human disease. Tracking tumor-specific immune responses in these models requires reagents to perform species-specific single cell T cell receptor sequencing (scTCRseq). scTCRseq and integration with scRNA data have not been demonstrated on companion dogs with cancer. Here, five healthy dogs, two dogs with T cell lymphoma and four dogs with melanoma are selected to demonstrate applicability of scTCRseq in a cancer immunotherapy setting. Single-cell suspensions of PBMCs or lymph node aspirates are profiled using scRNA and dog-specific scTCRseq primers. In total, 77,809 V(D)J-expressing cells are detected, with an average of 3498 …

Benthic Community Response To The Impacts Of Proposed Sediment Diversions In Louisiana Estuaries, Jillian C. Tupitza

LSU Doctoral Dissertations

Sediment diversions designed to mitigate land loss in coastal Louisiana will likely cause ecosystem-wide shifts. The first diversion, planned for Barataria Bay, will divert fresh water and sediment from the Mississippi River into the surrounding wetlands to help them keep pace with high rates of relative sea-level rise (RSLR). Estuarine benthic communities were used in this study as tools to characterize ecological patterns in the context of anticipated salinity changes. I reviewed relevant literature, conducted a two-year survey of Barataria Bay benthos, executed a reciprocal transplant experiment to describe changes that might occur in both community composition and trophic dynamics, …

An Approach To Identify Gene-Environment Interactions And Reveal New Biological Insight In Complex Traits, Xiaofeng Zhu, Yihe Yang, Noah Lorincz-Comi, Gen Li, Amy R Bentley, Paul S De Vries, Michael Brown, Alanna C Morrison, Charles N Rotimi, W James Gauderman, Dabeeru C Rao, Hugues Aschard, Charge Gene-Lifestyle Interactions Working Group

2020-Current year OA Pubs

There is a long-standing debate about the magnitude of the contribution of gene-environment interactions to phenotypic variations of complex traits owing to the low statistical power and few reported interactions to date. To address this issue, the Gene-Lifestyle Interactions Working Group within the Cohorts for Heart and Aging Research in Genetic Epidemiology Consortium has been spearheading efforts to investigate G × E in large and diverse samples through meta-analysis. Here, we present a powerful new approach to screen for interactions across the genome, an approach that shares substantial similarity to the Mendelian randomization framework. We identify and confirm 5 loci …

Biomolecular Condensates Form Spatially Inhomogeneous Network Fluids, Furqan Dar, Samuel R Cohen, Diana M Mitrea, Aaron H Phillips, Gergely Nagy, Wellington C Leite, Christopher B Stanley, Jeong-Mo Choi, Richard W Kriwacki, Rohit V Pappu

2020-Current year OA Pubs

The functions of biomolecular condensates are thought to be influenced by their material properties, and these will be determined by the internal organization of molecules within condensates. However, structural characterizations of condensates are challenging, and rarely reported. Here, we deploy a combination of small angle neutron scattering, fluorescence recovery after photobleaching, and coarse-grained molecular dynamics simulations to provide structural descriptions of model condensates that are formed by macromolecules from nucleolar granular components (GCs). We show that these minimal facsimiles of GCs form condensates that are network fluids featuring spatial inhomogeneities across different length scales that reflect the contributions of distinct …

“Wondered At This Change”: Queer Potential And Telling Silence In The Relationship Of Legolas And Gimli, Hannah Mendro

Journal of Tolkien Research

Queer scholarship on The Lord of the Rings has frequently focused on J. R. R. Tolkien’s depiction of deep, intense male friendships. The tenderness of these relationships and Tolkien’s treatment of homosocial bonds - particularly in comparison to his depiction of heterosexual relationships - raises a question of deeper intimacy and queer potential that cannot be ignored. But in contrast to the relationship between Frodo and Sam, which is frequently explored in scholarly work (even if raised only to dismiss the possibility of queerness), the potential for a queer reading of Legolas and Gimli shows up as a glaring gap …

Basic Needs Insecurity In U.S. Colleges: Human Rights Unfulfilled, Sarita Cargas, Tammy Thomas

International Journal of Human Rights Education

There have now been fifteen years of research on the basic needs of college students in the U.S. The studies have primarily focused on assessing the prevalence of food and housing insecurity. Determining who is responsible and finding solutions have been less emphasized. The scholarship has also not framed the problems of students’ basic needs insecurity (BNI) as human rights violations. This article argues that applying a human rights lens to the issue reveals that the rights to education, food, and shelter are not being realized, but further, higher education institutions bear considerable responsibility for addressing BNI. Human rights education …

Board Gender Diversity, Ceo Turnover, And Firm Performance In Entrepreneurial Firms, Matthew Imes, Mark West, Jessica West, Shan Yan

The Journal of Entrepreneurial Finance

This article examines recent literature on corporate boards and the interplay between director gender and CEO turnover and how it affects firm performance after CEO turnover. The primary focus is board gender diversity and CEO job embeddedness in entrepreneurial firms. This article discusses gender diversity and the frequency of CEO turnover. This paper finds that board gender diversity is associated with lower CEO involuntary turnovers and better overall performance in entrepreneurial firms. The article highlights how board gender diversity, especially in small firms, provides a unique pathway to create firm value and examines recent evidence on how gender diverse board …

Restorative Practices In English Language Arts: My Journey Towards Linguistic Justice, Ariana Skeese

Master of Arts in English Plan II Graduate Projects

In this final portfolio, I examine anti-racist pedagogy in English Language Arts Education.