Digital Commons Network^™

Synthesis And Characterization Of Water Soluble Thiosemicarbazone-Alkylthiocarbamate Ligands And Their Cu(Ii) Complexes, John J. Garvey Iv, Sanjit Karki, Haixun Guo, Levi J. Beverly, Craig A. Grapperhaus, Robert M. Buchanan

The Cardinal Edge

Thiosemicarbazone-alkylthiocarbamate N₂S₂ hybrid ligands are emerging as an important class of potential bioactive molecules that possess important pharmacokinetic properties. Resulting metal complexes have electronic properties that are composites of their homolog forms, bis-thiosemicarbazones and bis-alkylthiocarbamates, allowing for tuning redox potentials over a nearly 450 mV range. These versatile ligand frameworks possess remarkable antiproliferation activity against a broad range of solid tumors and low toxicity towards normal cells¹ indicating great promise for future drug development. Herein, we describe recent synthetic efforts to improve water solubility of thiosemicarbazone-alkylthiocarbamate hybrid ligand Cu(II) complexes. The parent 4-methyl-3-thiosemicarbazide half arm was …

An Analysis Of Active Galactic Nuclei In Diverse Galactic Environments, Divya A. Patel, Clayton Robertson, Dr. Benne Holwerda

The Cardinal Edge

This study examines the active galactic nuclei (AGNs), where the active supermassive black holes reside. Using the Galaxy and Mass Assembly (GAMA) survey data, the main goal is to search three regions of space—filament, tendril, and void space—for AGNs. Active black holes are notorious for their violent activities through space, as they intensely spew out amounts of matter. Such behavior can be observed using the Baldwin-Philips-Terlevich (BPT) diagrams, which use ratios of emission lines to understand the astrophysical characteristics of various objects. To enhance the precision of the BPT diagrams, there was a focus on the red part of the …

Comparing Climate Growth Of Oak And Tulip Poplar Species In Bernheim Forest, Kentucky, Usa Using Dendrochronological Methods, Jacob G. Brown, Jordan Sharp, Maegen Rochner

The Cardinal Edge

Jordan Sharp and Jacob Brown

Department of Geographical and Environmental Sciences, University of Louisville

Title: Comparing Climate Growth of Oak and Tulip Poplar Species in Bernheim Forest, Kentucky, USA using Dendrochronological Methods

Abstract:

With climate change, the state of Kentucky is expected to face increases in hydrological variability and extremes. To understand more about future projections, past climatic conditions can be analyzed with proxy-based data sources. Tree-rings provide annual to sub-annual resolution that can be used for proxy-based climate reconstructions. Kentucky, however, lacks tree-ring data and this leaves the state understudied from a high temporal and spatial resolution paleo perspective. …

Investigating Drought Response And Paleoclimate Potential Of A New Network Of White Oak Chronologies In Western Kentucky, Usa, Audrey J. Heichelbech, Megan Gibson, Maegen Rochner

The Cardinal Edge

In Kentucky, historic and paleo-climate data are limited, and current understanding of long-term climate change in the state relies on instrumental data spanning only 1895-present. Proxy data are necessary to extend the temporal and spatial span of climate information. One potential proxy source for Kentucky is tree ring data, but currently, only four such datasets are publicly available on the International Tree Ring Data Bank (ITRDB). Archaeological and archival timber sources may help to fill in this gap. In the 1940s, Florence Hawley-Ellis, the first woman dendrochronologist, collected samples of white oak (Quercus alba L.) from four counties in western …

Studying Organic Chemistry Students’ Scientific Modeling Practices Through A Semi-Structured Interview, Daniel Mays, Morgan Balabanoff

The Cardinal Edge

Many areas of natural science deal with unobservable phenomena. Scientists develop and use models to make sense of these aspects of nature. Chemistry is certainly no exception – in fact, given the molecular nature of chemical interactions, the modern understanding of chemistry is largely based on well-established scientific models. Because models are so important in chemistry, understanding how students develop and use models in the learning process stands to offer key insights into how to better teach chemistry. This project is focused on exploring how students of organic chemistry develop and use scientific models to predict the outcome of reactions. …

Investigating Factors Influencing Science Student Retention, Hayley Benson, Morgan Balabanoff

The Cardinal Edge

Retention in and across STEM degrees has been a significant problem across institutions. By the time students have reached their third year, the University of Louisville has lost over 50% of the students who entered as first-year students.

The main objective of this study is to investigate variables such as sense of belonging, student’s mindset, and science identity and their relationship with retention in STEM degrees. While many studies have identified gaps among student groups across these variables, few studies have generated solutions to address these gaps. Further, the proposed solutions are often from the viewpoint of researchers and upper …

Socially Situated Scientific Discourse: Learning Under The Perceived Threat Of Being A Woman, Kayla Taylor

Feminist Pedagogy

As a companion piece to “Diminishing Dialogue: The Fallacy of Florida Politics,” this critical commentary explores how undergraduate humanities courses and feminist standpoint theory shaped the perspective of an aspiring STEM PhD candidate. The subjective nature of scientific objectivity is examined through the lens of feminist historiography and the author’s own experiences as a woman in STEM.

Sustainable Flight Training Schools And Their Role To Meet Net Zero Targets, Eva Maleviti

Sustainability Conference

This presentation is part of a wider research project to identify the elements that must be considered regarding flight training schools’ role in aviation sustainability. Net Zero Pathways and goals, emission schemes, design specifications, and sustainable fuels are some of the most popular changes for airlines and manufacturers. Flight training schools must be at the forefront of promoting aviation sustainability to tomorrow’s professionals. The ICAO Carbon Offsetting Requirement Scheme for International Airlines (CORSIA) relies heavily on the firm and reliable information in the operators’ system. Proper emission calculation requires flight crews to feed valid and accurate flight information data. Hence, …

Design Of A Safe And Sustainable Airplane For Future, Henil Patel, Carlie Vogt, Matthew Talty, Jemimah Davies, Kyle Smothers, Mellisa Pritchet

Sustainability Conference

As a part of Airplane Preliminary Design course, this Design Note estimates the capabilities, performance, and stability behaviors of our conceptual airplane design, Boeing 7S7 – Sanctum prior to proceeding to the preliminary stage. This aircraft seeks to create a solution to achieving Net Zero Emissions by 2050 and increasing the safety measures. The design of this aircraft uses various analytical methods such as the DAPCA IV model, other methods were derived from design books. This design involved the use of software such as CATIA, VSP, SURFACES, Microsoft Excel, and Python. Results demonstrates that this aircraft is able to fly …

Agenda For A South-South Philosophical Dialogue, Enrique Dussel

Budhi: A Journal of Ideas and Culture

The intercultural dialogue that has been developing since the beginning of the 21st century as a cultural and political priority should have an inter philosophical global dialogue as its epistemological and ontological foundation. However, given the asymmetric relation between the Global North and the Global South, it is necessary that this global dialogue begin with an inter philosophical dialogue among the world’s post-colonial communities. This essay argues that it is imperative for philosophers of the South to come together to define and claim for themselves a philosophical practice—generating its topics and methods from its own historical, socio-economic-political realities and traditions—that …

Transatlantic Sermonizing: The Influence Of Changing Sermon Styles In Britain On Anglican Clergy In Colonial Philadelphia, Barry Levis

Sermon Studies

At the beginning of the eighteenth century, a significant change emerged in the style and content of sermons in the Church of England. Sermons focused less on sin and the threat of eternal punishment, features of the seventeenth century, and more on how to live a rational and agreeable life. These alterations occurred both because of political changes following the Hanoverian succession accompanied by the rise of the Whigs and also from the influence of the Enlightenment. These transformations arose not only in England but in her American colonies as well, primarily in the Middle Atlantic colonies. Large numbers of …

Evaluating Trauma-Informed Design In A Mental Health Setting: A Community-Based Research Case Study, Marie Spence

Electronic Theses and Dissertations

This case study utilized a community-based research framework to explore how the Trauma-Informed Design framework can be implemented in a mental health setting. This study focused on the site of Empower Therapy Practice, a private mental health practice in the Denver Metro Area, to engage clients and staff to participate in advisory boards and inform the interior design of a new office space. To explore the application of Trauma-Informed Design, participants engaged in a variety of research activities, including an evaluative questionnaire, Photovoice, and focus group. Advisory board members identified various aspects of Trauma-Informed Design which meaningfully translate to therapeutic …

My Superpower: Research Collaborator Strategies Among Faculty Members Who Are First-Generation College Graduates, Faye Farmer

Electronic Theses and Dissertations

This inductive study examined the intersectional experience within research collaborations of tenure-track faculty who are both first-generation college graduate students and from racial and ethnic groups (as defined in the United States) that are underrepresented in STEM fields (as defined by the National Science Foundation). I interviewed twelve current and former faculty members from doctoral-granting universities in the United States. I used identity as the theoretical lens to explore research collaborations at the individual level. The interviews revealed three themes reflecting identity's role in selecting and being selected as a collaborator and working with a collaborator. The themes are: an …

Designing Customized Loss Functions For Training Deep Neural Networks, Ali Pourramezan Fard

Electronic Theses and Dissertations

This dissertation explores the critical role of loss functions in enhancing the predictive performance of deep machine learning models. Loss functions are an integral element of all the ongoing advances we witness daily in this domain. I design custom loss functions and their impacts on various machine learning tasks, particularly in computer vision.

In the first stage of my research, I aim to improve the prediction performance of deep learning models by providing them with more precise feedback associated with task requirements. This led me to create the concept of assistive loss functions. My first proposed loss function, inspired by …

Effective Support Strategies Serving Diverse Teacher Candidates In Paraprofessional Teacher Education Programs, Angela Christine Griner, Debra K. Wellman

Faculty Publications

Paraprofessionals remain a rich resource for our children and our school communities. Teacher education programs that have sought to provide pathways to teaching certification for paraprofessionals recognize this. Over the last 25 years, research has shown well-documented models for programs and strategies that support candidates in these programs, as well as the obstacles and challenges those programs and participants face. This article presents a descriptive case study of the first three years of a para-to-teacher program, across three cohorts of participants at a small liberal arts institution. Implications for best practices tied to collaborative leadership, relational approaches, and collaborative program …

An Overview Of Generative Ai Initiatives At Minnesota State University, Mankato (So Far), Evan Rusch, Nat Gustafson-Sundell

Library Services Publications

At Minnesota State University, Mankato, we’ve undertaken several experiments and initiatives focused on Generative Artificial Intelligence. We provided several examples at the Generative AI in Libraries (GAIL) conference. For this presentation, we provided a revised and expanded overview of our initiatives for the Northern Ohio Technical Services Librarians (NOTSL) Fall General Meeting. We explained license-related restrictions on uses of AI. We discussed the limitations of the retrieval-augmented generation tools currently available in the library. We summarized how we’ve tested ChatBots to support licensing and we showed how we’ve tried to use AI to improve data visualization for collections outreach. We …

Supporting Preservice Teachers Of Color In Culturally Relevant Pedagogy, Kimberly M. Korpita

Electronic Theses and Dissertations

While learning how to become culturally and critically conscious educators and advocates for their PK-12 students, racially minoritized preservice teachers often feel isolated. More research is needed to learn how teacher preparation programs could consistently empower rather than isolate preservice teachers of color as they engage in coursework involving culturally relevant pedagogy.

This study focused on the experiences of preservice teachers of color engaging in culturally relevant pedagogy coursework in a K-12 teacher preparation program at a predominately White institution. In partnership with this teacher preparation program, one current preservice teachers of color, five former alumni of color, and three …

Dysfunction Of Polyamine Metabolism In Down Syndrome Related To Cellular Senescence And Β-Amyloid Production, Andres D. Sola

Electronic Theses and Dissertations

Polyamines (PA) are ubiquitous in cells and highly involved in several important cellular functions and thus the dysregulation of their biosynthetic pathway is potentially associated with the progression of age-related diseases like Alzheimer’s’ disease (AD). Though there is research describing how PA content changes in organisms as they age or in those experiencing rapid aging from increased rates of senescence, as in Down syndrome (DS), it is not clear how this connection occurs and whether modulating this pathway may reveal downstream effects on related disease progression. This study examines how the modulation of the PA biosynthetic pathway by inhibition of …

The Impact Of Cumulative And Acute Loading On Achilles Tendon Health, Performance, And Reported Pain In Collegiate Gymnasts, Julio Serrano Samayoa

Electronic Theses and Dissertations

Gymnasts are at a high risk of Achilles tendon (AT) injuries due to intense loads during takeoffs and landings. To better understand better the relationship between impact loading and its effects on tendon adaptation and athletic performance, this study uses Inertial Measurement Units (IMUs) to track AT loading across a collegiate gymnastics season. This data were compared against physiological and athletic performance metrics, obtained through force plates and ultrasound imaging, to explore how mechanical load influences reported pain and athletic performance. Results varied, with cumulative impacts being correlated with improved jump height (Spearman 0.362, Pearson 0.348), while peak power and …

Model-Based Navigation And Control Of Multirotor Uavs: A Machine Learning Approach, Serhat Sönmez

Electronic Theses and Dissertations

In recent decades, unmanned systems, particularly Unmanned Aerial Vehicles (UAVs), have seen significant advancement and unprecedented growth in military, civilian and public domain applications. Scientists have focused on enhancing UAV navigation and control through cutting-edge technologies and support tools. UAVs find applications in many fields, except military, such as agriculture, infrastructure inspection, wildlife monitoring, search and rescue, emergency response, border protection, to name but a few relevant civilian applications. Given the faster-than-exponential increase of available computational power, learning-based algorithms have emerged as a prominent tool for (real-time) multirotor UAV navigation and control. This dissertation centers around the fusion of conventional …

Financialization And Price Volatility: An Empirical Analysis On Speculation In The Oil Market, Audry F. Oliveira Carnivale

Electronic Theses and Dissertations

Financialization has facilitated the trade of futures contracts because of deregulatory policies increasing speculation. Speculation has created a more fragile market inducing riskier investments and aggravating price volatility. Three post-Keynesian theories, the financial instability hypothesis, money manager capitalism and markup, explain how policy altering the banking structure has developed financialization from lax regulation. Previous research has emphasized supply and demand as the main determinants of oil price changes, but it’s important to consider how structural changes from policy stimulating a more financialized economy has impacted volatility. With Brent Crude oil price data and West Texas Intermediate (WTI) open interest and …

Secondary Pre-Service Teachers’ Visual Literacy: Instructional Strategies In Social Studies, Daibao Guo, Erin E. Rich, Julianne Coleman

Boise State University Publications and Presentations

While visual literacy pedagogy in teacher preparation programs has been a recognized body of knowledge the past few decades, limited research centers upon secondary teachers who are responsible for integrating visual literacy into content instruction. This study explored how 32 secondary English language arts and social studies pre-service teachers (PSTs) utilized visual displays to teach content in their classrooms. PSTs were tasked with developing instructional strategies based on five commonly used visuals in social studies texts: photographs, images, maps, tables and flowcharts. Through a qualitative analysis of the PSTs’ prompts, three themes emerged: (1) teacher-led activities, (2) writing activities and …

Exploring Customer Behavior Through Emotion Detection, Darlington Omoifo

Master's Theses

This thesis investigates the potential of emotion detection, gaze tracking, and hand movement analysis as tools to enhance understanding of customer behavior in retail environments. In retail, subtle indicators such as facial expressions, gaze direction, and hand gestures provide valuable insights into customer preferences and decision-making processes. The study leverages real-time video processing with a multithreaded approach on a Raspberry Pi-powered system embedded in a gift cart equipped with dual cameras. Using FER for emotion detection and a custom model for gaze and hand tracking, this research identifies customer engagement patterns, focusing on how emotions like happiness correlate with purchasing …

Investigating The Role Of Tetherin Protein In Multivesicular Bodies Fusions In Lung Cancer Cells, Md. Rakib Miah

Electronic Theses and Dissertations

Cells rely on the secretion of exosomes to communicate with one another and this process is potentially mediated by a protein called tetherin, which anchors exosomes to the cell surface to limit their spread. Tetherin protein has attracted a lot of attention because of its capacity to hinder the propagation of viruses by attaching virions to the surface of host cells. Treatment with interferon-alpha (IFNα) increases the production of tetherin, although it is not known how this affects tetherin localization and exosome-mediated communication. This thesis looks at how the expression of tetherin, which IFNα boosts, affects the dynamics of intercellular …

Invertebrate Functional Diversity Of Fossils From Arrow Canyon, Nevada, Nathaniel Valentine

Undergraduate Research Symposium Podium Presentations

Paleontology can be used to study how ecosystems evolve and respond to changes in the environment. Here we examine invertebrate fossils from the Pennsylvanian, a time period that ranged from 323.2 to 298.9 million years ago, which are preserved along the walls of Arrow Canyon (Nevada) in the Bird Spring Formation. We surveyed three sites within the canyon, and used data from the Paleobiology Database to create a list of taxa found on the canyon from this time interval. Although ecosystems have traditionally been studied using the composition of the ecosystem (the number of species), recent work has shown that …

The Correlations Between Students' Academic Success And The Various Modes Of Attendance, Lewana-Nani Lebaron

Undergraduate Research Symposium Podium Presentations

The increased demands on students’ time and effort imposed by their academic and personal environments have prompted many to explore alternative avenues for attending classes. This study sought to determine the existence of a correlation between the different modes of classroom attendance and students’ academic success. The research detailed within this report examined the attendance of four undergraduate statistics classes with 111 participants. Students were incentivized to complete an attendance survey, indicating whether they attended in person, virtual live streaming, or viewed the recorded lecture at a later time. Students who did not respond to the survey or were absent …

Biochar/Hydrochar Applications In Disinfection Byproduct Removal For Drinking Water, Ashleu Mussio Marquez, Donna Rouhani, Ismail Abdulraheem, Kers Ung-Watson, Ahmadreza Khatamgooya, Scarlet Nelson, Dr. Jaeyun Moon, Dr. Erica Marti

Undergraduate Research Symposium Posters

This project aims to investigate the process of disinfection byproduct (DBP) removal in drinking water, looking into the applications of biochar and hydrochar, which are low cost and environmentally sustainable adsorbents. These carbon-based adsorbents are derived from agricultural waste biomass, such as walnut shells. These adsorbents will be used to capture and remove contaminants in water, such as DBPs. DBPs are formed when chemical disinfectants react with organic and inorganic substances naturally present in water. The targeted DBPs for adsorption include trihalomethanes, haloacetic acids, haloacetonitriles, and nitrosamines. An example of high concentration DBP formation is during emergency chlorination, where excess …

Potential Cell Preservation In Mars-Relevant Clay Minerals, Hanford Gerille Gonzales, Leena M. Cycil, Elisabeth Hausrath

Undergraduate Research Symposium Posters

This study investigates the potential of Fe-nontronite, a clay mineral found on Mars, to preserve biological cells and retain biosignatures such as trace metals. The research explores the preservation potential of nontronite by reacting it with cells under the following conditions: 1) reacting cells with nontronite precursors at low temperature and 2) reacting cells with the already synthesized nontronite made at high temperature. Microbial species Shewanella oneidensis and Geobacter metallireducens, known for their relevance to iron-rich environments, were introduced in intact and lysed forms to assess their interactions with each condition of nontronite. Preliminary results from scanning electron microscopy (SEM) …

Hurricane Evacuation: Navigating Uncertainty During Covid 19 And With Existing Communication Scales, And Considering Public And Expert Perception Of Alternative Scales, Leilani D. Paxton

USF Tampa Graduate Theses and Dissertations

This dissertation investigates the effectiveness of current hurricane warning products and communication strategies, exploring factors influencing public perception of risk and decision-making during evacuations. The study employs a mixed-methods approach, combining survey data, focus group discussions, and interviews with meteorologists and emergency managers. The first paper examines the impact of the COVID-19 pandemic on hurricane risk perception and evacuation decisions. Findings indicate that while COVID-19 concerns played a role in some individuals' decisions, particularly those with pets or concerns about shelter conditions, the majority of participants evacuated for Hurricane Ian. The study highlights the importance of providing clear, consistent, and …

The Minutes Of The Marshall University Graduate Council Meeting, November 22, 2024, Marshall University Graduate Council

Graduate Council Minutes

No abstract provided.