Digital Commons Network^™

Implementation Of A Droplet Interface Lipid Bilayer System For Electrical Characterization, Olivia J. Ziemer

Honors Theses

Lipid bilayers are the fundamental structural framework of cell membranes, providing cells with both protection from the environment and interaction with the surrounding environment. Experimental investigation of lipid bilayers and embedded protein channels often involves the formation of an artificial membrane within an electrical circuit. The focus of this project is to implement and verify the functionality of a lipid bilayer characterization technique known as the droplet interface bilayer (DIB), with emphasis on cost-effective system design. To achieve this, the amplifier and software from the ELEMENTS black lipid membrane (BLM) kit were repurposed to reduce the cost of implementing a …

Transformation Efficiency And Gfp Expression In E. Coli, Jessica H. Hobbs

Honors Theses

Genetic transformation of bacteria is a foundational technique in molecular biology and biotechnology, enabling the introduction and expression of foreign genes for research, industrial, and educational applications. This thesis investigates the transformation efficiency and green fluorescent protein (GFP) expression in Escherichia coli using the pGLO plasmid system, with the primary objective of supporting the development of a graduate-level laboratory course focused on bioprocess engineering and molecular biotechnology. The pGLO plasmid contains a GFP reporter gene regulated by an arabinose-inducible promoter and an ampicillin resistance gene that allows for selective growth of transformed cells. Competent E. coli HB101 K-12 cells were …

Toward An Understanding Of Social Marketing’S Influence On Alcohol-Related Behaviors In College Students: Health Promotion Strategies For College Campuses, Lily K. Richards

Honors Theses

Alcohol use among college students remains a persistent public health concern, influenced by a complex interaction of social, environmental, and behavioral factors. This literature review examines the prevalence of alcohol consumption in college populations, the associated short-term and long-term health consequences, and the role of social norms, peer influence, and environmental context in shaping drinking behaviors. Research consistently demonstrates that alcohol use is deeply embedded within college culture, where normative misperceptions and peer dynamics contribute to increased consumption. (Perkins, 2002; Borsari & Carey, 2001; Hingson et al., 2017). In addition, environmental factors such as alcohol availability and targeted marketing further …

Salt-Dependent Purification Of Green Fluorescent Protein Via Hydrophobic Interaction Chromatography, Katie L. Collins

Honors Theses

Green fluorescent protein, GFP, is a widely used fluorescent reporter, and its purification provides a clear model for studying downstream bioprocessing. This thesis investigates how binding-buffer salt strength affects GFP retention and elution during hydrophobic interaction chromatography, HIC, by comparing three conditions (1.0×, 0.8×, and 0.6×). GFP-expressing E. coli were lysed and clarified, and the lysate was purified on HIC columns; collected fractions were evaluated qualitatively under UV illumination to track fluorescence distribution. Results showed a salt-dependent trend in which higher salt improved retention and shifted fluorescence toward later elution fractions, while reduced salt weakened hydrophobic interactions and increased earlier …

The Effects Of The South Chattanooga Mentorship Program On Elementary School Children, Ana G. Morris

Honors Theses

This research study examines the impact of mentorship within the South Chattanooga Community Center’s after-school program, with a focus on elementary-aged students. The purpose of this study is to evaluate how one-on-one mentorship affects students’ academic development, behavior, and social-emotional learning. The program operates as a cost-free, five-day-a-week initiative designed to provide a safe and supportive environment for children who may lack consistent guidance outside of school. Using observational methods and direct interaction with students (quantitative and qualitative), this study examines mentorship influences key skills, including regulation, communication, relationship-building, and literacy abilities. It suggests that students who participate in the …

Improving Learning Habits In High School Ela, Alexander Sinn

Masters Projects

Students lack the habits and skills to process and apply what they have learned. In their secondary education, they are not developing the traits that help them succeed in college courses. Students are not explicitly taught note-taking and other study skills needed to succeed in core academic areas, English Language Arts (ELA) in particular. To address the needs of students, curriculum must incorporate expectations for students in self-efficacy and self-regulatory areas of learning. In the secondary ELA classroom, students should be provided opportunities and experiences to develop good habits. These should be requirements of 9th and 10th grade curriculum. The …

Beat Behind The Bark: Investigating The Effects Of Music Tempo On Canine Physiological And Psychological States, Marley Lanier

Honors Theses

This study explores how the tempo of music, measured in beats per minute (BPM), affects dogs' heart rate and oxytocin levels, adding to past research that shows that music affects physiological and behavioral states in dogs. Being able to understand these effects holds practical implications for improving overall well-being in canines in environments such as homes, shelters, and clinical environments. Using a within-subjects design, the dogs were exposed to slow and fast versions of one instrumental track, along with a white noise baseline condition before each randomized condition. Heart rate was recorded continuously throughout the session, and oxytocin saliva samples …

Bottles, Butterflies, And Biomass: Recycled Glass Sand, Microbial Additions, And Herbivory Effects On Milkweed Growth, Kealey Skinner

Honors Theses

Plant-soil-microbe interactions are integral components of ecological networks and drive ecosystem function from the bottom-up. Whereas herbivores regulate ecosystem function from the top-down, having opposing and potentially complementary effects on ecosystem function. My thesis sought to understand how below-ground microbial communities contribute to herbivore preference and plant biomass across varied soil substrates. My thesis asked: how do substrate and soil microbial communities influence herbivore preference and plant biomass accumulation on swamp milkweed (Asclepias incarnata)? To address this question, seedlings of A. incarnata were sown in 2.5 cm wide × 10 cm deep pots filled with either natural beach sand or …

Search For Slow-Moving Magnetic Monopoles With An Improved High-Energy Event Removal Algorithm, Reeshi N. Gihosal

Honors Theses

Fermilab’s NOvA (NuMI Off-axis 𝑣𝑒 Appearance) experiment focuses on understanding the behavior of neutrinos and how they affect the cosmos. A sub-focus of the NOvA experiment is the search for magnetic monopoles. These elusive particles have not yet been observed in nature, leaving their behavior to be mysterious. The Far Detector, located in Ash River, MN, is integral in the search for these particles. This project is on simulated magnetic monopoles with speeds thousandths the speed of light, with focus on the role of slicing algorithms in event reconstruction using the NOvA experiment’s reconstruction algorithm. Using sample data, analysis occurred …

Determinants Of Hypertension Awareness And Control In Kenya: A Secondary Analysis Of National Survey Data, Alexander K. Davis

Honors Theses

In low- and middle-income countries (LMICs), cardiovascular diseases (CVDs) are prevalent and pose a major concern as the current healthcare systems are oriented primarily towards communicable diseases. The largest contributor to CVDs, hypertension, is a significant issue in Kenya, a model LMIC. Based on previous studies in this lab, high rates of hypertension are present in the region of Kasigau, Kenya. Kasigau is a small region within Taita-Taveta County, Kenya. Traditional risk factors are not necessarily predictive of hypertension in all regions of Kenya. This study aims to address the lack of tested risk factors for hypertension in Kenya and …

Luz E. Herrera, Luz E. Herrera

Faculty CVs

No abstract provided.

Perseus Interim Evaluation Report, Data Innovation Project, University Of Southern Maine

Publications

The Data Innovation Project (DIP) from the University of Southern Maine’s Catherine Cutler Institute serves as the external evaluator for the USDA NIFA SAS-funded Promoting Economic Resilience and Sustainability of the Eastern U.S. Forests (PERSEUS) project. This project is a joint effort between Purdue University, the University of Georgia, and the University of Maine. The DIP supports the project in assessing its progress, implementation, and emerging impacts through data collection from project participants and systematic document review (i.e. annual USDA reports, personnel lists, and meeting notes). This includes synthesizing quantitative and qualitative data and incorporating these metrics into independent evaluation …

Public Policy And Food Security: A New England–Maritime Provinces Comparative Analysis Of Nutrition Assistance Programs, Kellie A, Therriault

Muskie School Capstones and Dissertations

This study examines how differences in policy design and program administration influence food assistance access and potential food insecurity outcomes across Northern New England (Maine, New Hampshire, and Vermont) and the Canadian Maritime provinces (New Brunswick, Nova Scotia, and Prince Edward Island). Using a mixed methods comparative design, the analysis integrates 2023 administrative data with qualitative insights from semi-structured interviews with program administrators. Key indicators include program participation, household composition, benefit structure, and eligibility thresholds. Results indicate that SNAP participation varies widely across U.S. states and is associated with differences in average income levels, while Canadian provinces demonstrate more consistent …

Separating And Identifying Delta-8-Thc And Delta-9-Thc On Gc/Ms, Ann Schmidt

Honors Projects

Delta-8-THC and delta-9-THC are two psychoactive compounds found in marijuana products which are only distinguishable from each other by alternating the location of a single double bond.  This makes them a challenge to separate and identify as different compounds using the GC/MS.  These isomers are legally recognized as the different compounds, so being able to identify delta-8 and delta-9 THC separately is crucial to forensic analysis. The goal of this research project is to optimize an Intuvo 9000 GC connected to a standard MS to be able to separately and prominently identify delta-8-THC and delta-9-THC in a sample.  This was …

The Rodent Electronic Nicotine Delivery System (Rends): Effects Of Age On Self-Administration Of Inhaled Nicotine In Female Rats, Daniel Santos Da Silva

All Graduate Theses and Dissertations, Fall 2023 to Present

Smoking tobacco is the leading avoidable cause of death and drives many health problems. Nicotine, the main chemical in tobacco products, keeps people using it. This study used the Rat Electronic Nicotine Delivery System (RENDS), an inexpensive and freely shared, to examine e-cigarette use in adolescent and adult female rats by exploring four phases of nicotine delivered and not delivered to understand use patterns among ages. Our study found that both adolescent and adult female rats chose to inhale nicotine when given the opportunity, showing drug-seeking behavior. Overall, nicotine use was similar between ages. These results could help inform therapies, …

Enhancing Evidence-Based Practice Decision-Making Among Practitioners In Adult Disability Service Settings, Aubrey Vance

All Graduate Theses and Dissertations, Fall 2023 to Present

Board Certified Behavior Analysts (BCBA®s) working in adult disability services often face challenges such as high caseloads, limited oversight, and restricted resources, which can make it difficult to use individualized, research-supported interventions. Although evidence-based practice (EBP) is central to applied behavior analysis, many practitioners receive little training on how to integrate research evidence, client values, and clinical judgment into their decision-making. This study examined whether BCBAs could be effectively trained to use a structured decision-making framework based on the EBP model by Slocum et al. (2014). Using a multiple baseline design, we evaluated the effects of Behavioral Skills Training (BST) …

Visualizing Probabilistic Model Checking: An Interactive Framework For Exploring Ctmc Models, Ishara Mawelle Kankanamge

All Graduate Theses and Dissertations, Fall 2023 to Present

Probabilistic model checking is a critical method for analyzing systems characterized by uncertainty, such as communication protocols, randomized algorithms, and biochemical networks. While formal verification tools provide precise numerical data about these systems, interpreting these results is often limited by large state space, high-dimensional state space and time dependent evolution. Current tools typically output raw numerical data, offering limited support for intuitively understanding the time-dependent behavior of a model. This research presents an interactive visualization framework designed to bridge the gap between complex numerical analysis and human intuition. The framework integrates coordinated visual interfaces, including lower-dimensional state-space projections and synchronized …

Production Of Hydrolyzed Lactose Syrup From The Acid Whey, Aubrey Jean Arbon

All Graduate Theses and Dissertations, Fall 2023 to Present

Acid whey has gained significant attention within the dairy industry due to its complex matrix and the processing challenges. This by-product contains lactose that can be isolated, hydrolyzed, and further processed to produce hydrolyzed syrup. To optimize lactose utilization, it is essential to fine-tune the kinetics of the β-galactosidase enzymes used for lactose hydrolysis. To analyze sugars in acid whey, and LC-MS-based chromatographic method was developed. Once the method was developed, the kinetics of β-galactosidase were optimized with respect to enzyme concentration, pH, and temperature. The goal was to achieve the highest possible lactose hydrolysis. The hydrolyzed acid whey was …

Mease: Multi-Agent Episodic Action Sequence Explanation, Phyo Wai Khaing, Minghong Geng, Shubham Pateria, Budhitama Subagdja, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Multi-agent reinforcement learning (MARL) achieves remarkable performance in complex coordination tasks, yet interpreting the emergent behaviors of trained agents remains a fundamental challenge. Most current explainability methods focus on individual agent decisions, overlooking the critical interplay of joint strategiesand temporal coordination patterns that define successful multi-agent policies. We present MEASE (Multi-agent Episodic Action Sequence Explanation), a novel explainable MARL (XMARL) framework that explains trained MARL policies as human-interpretable emergent cooperative joint behaviors. MEASE employs a cognition-inspired episodic memory model to learn spatio-temporal multi-agent interaction patterns, coupled with abstraction algorithms that identify significant cooperative agent behaviors. We evaluate MEASE on diverse …

Quantitative Bounds On Resource Usage Of Probabilistic Programs, Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Dorde Zikelic

Research Collection School Of Computing and Information Systems

Cost analysis, also known as resource usage analysis, is the task of finding bounds on the total cost of a program and is a well-studied problem in static analysis. In this work, we consider two classical quantitative problems in cost analysis for probabilistic programs. The first problem is to find a bound on the expected total cost of the program. This is a natural measure for the resource usage of the program and can also be directly applied to average-case runtime analysis. The second problem asks for a tail bound, i.e. ‍given a threshold t the goal is to find …

Market Reactions To Deceptive Language In Fake News: Implications From Language Expectancy Theory And Transfer Learning, Ka Chung Ng, Ping Fan Ke, Ping Fan, Mike So, Tam, Kar Yan

Research Collection School Of Computing and Information Systems

The advent of generative artificial intelligence (AI) has heightened the proliferation of fake news. A key challenge is the limited real-world data to investigate the societal impact of fake news produced by generative AI. In this paper, we examine stock market reactions to financial news articles that exhibit stylometric similarity to human-crafted and AI-crafted fake financial news. Grounded in language expectancy theory, we employ a style-based transfer learning model, pre-trained to recognizing deceptive language employed in various types of fake news intricacies. We then apply this model to a comprehensive dataset of financial news, assigning a “veracity style score” to …

Open Source Software Development Tool Installation: Challenges And Strategies For Novice Developers, Larissa Salerno, Christoph Treude, Patanamon Thongtanunam

Research Collection School Of Computing and Information Systems

As the world of technology advances, so do the tools that software developers use to create new programs. In recent years, software development tools have become more popular, allowing developers to work more efficiently and produce higher-quality software. Still, installing such tools can be challenging for novice developers at the early stage of their careers, as they may face issues such as compatibility problems (e.g., with operating systems) and unclear instructions. Therefore, this work aims to investigate the challenges novice developers face when installing software development tools and the strategies they employ to overcome them. To investigate these, we conducted …

Fighting Against Recruitment Scams: Theory-Driven Supervised Learning And Empirical Analysis For Digital Fraudulent Recruitment Posting Behavior, Tom (Tianteng) Wang, David (Jingjun) Xu, Keng Siau, Zhongju (John) Zhang

Research Collection School Of Computing and Information Systems

The number of recruitment postings on digital recruitment hiring platforms has increased since the COVID-19 pandemic. However, the weak surveillance and operations of these platforms, combined with the fact that most job seekers have relatively low vigilance and a strong desire for recruitment offers, enable scammers to easily deceive job seekers for their money and confidential information. In this work, we combine prevailing text mining techniques (i.e., ChatGPT with prompting engineering and supervised machine learning) with interpersonal deception theory (IDT) from social science to design an interpretable IT system to predict fraudulent recruitment postings on digital recruitment-hiring platforms. We compare …

Narrating Experience: How Undergraduate Social Work Students See Themselves In The Social Justice Curriculum, Emily C. Soener

Department of Educational Administration: Dissertations, Theses, and Student Research

Social justice is widely recognized as a foundational value of the social work profession, yet research indicates inconsistencies in how social justice is defined, taught, and experienced within social work education. This study examines how undergraduate social work students make meaning of social justice learning in relation to their own lived experiences. Using a critical narrative inquiry approach grounded in constructivist qualitative methodology, this study explores how students narrate their experiences of social justice education and how those narratives reveal tensions between professional ideals and classroom realities. Data were collected through semi-structured interviews with eleven undergraduate social work students enrolled …

Developing A Decision-Making Tool For Breast-Feeding Mothers Whose Babies Have A Cow's Milk Protein Allergy, Rachel M. Griffith

Human Nutrition and Hospitality Management Undergraduate Honors Theses

Cow’s milk protein allergy (CMPA) is one of the most common food allergies in infancy, affecting an estimated 2–3% of infants, including those who are breastfed. Many symptoms of CMPA overlap with gastrointestinal disorders and lactose intolerance, leading to frequent misdiagnosis and unnecessary maternal dietary restriction. Breastfeeding mothers who eliminate dairy to manage suspected CMPA often face nutritional deficiencies, emotional strain, and financial burden, while infants risk poor growth if symptoms are not properly addressed. Breastfeeding is viewed as the optimal source of nutrition for infants providing many cognitive benefits and positive maternal effects like decreased stress and risks of …

Enhancing Food Security In Stann Creek. Belize Using Meat Rabbits, Lindsey Garretson

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

In recent years, food insecurity and the prevalence of hunger have rapidly grown throughout the world, but especially within Latin America and the Caribbean. Along with growing rates of food insecurity and hunger there are increases in medical conditions including negative impacts the functioning of every major organ system, increased rates of mental illness, both overweight and underweight children, wasting in both children and adults, and anemia. Availability and access to healthy, nutritional food options can help lower the risk of these conditions. With these considerations, the goal of this project was to create an all-encompassing manual and construction guide …

Multinational Investment Activity Under Policy Uncertainty In Host And Competing Countries, Daisoon Kim, Sunhyung Lee

Department of Economics Faculty Scholarship and Creative Works

This paper examines how economic policy uncertainty (EPU) in host and competing countries reshapes U.S. multinationals’ greenfield foreign direct investment (FDI). Using firm–destination level data from 2003 to 2021, we show that while host-country EPU deters investment, EPU in competing destinations attracts it through a spillover effect. We document a structural shift around 2015: as global EPU rose unevenly, the spillover effect from competitors became the dominant driver of investment decisions, supplanting the direct effect of host-country policy instability. Our findings indicate that in an era of heightened global uncertainty and risk, FDI allocation is governed by relative, not just …

The Proximal Effects Of Blood Flow Restriction On The Infraspinatus Muscle Cross-Sectional Area And External Rotation Strength, Adam James Zavalney, Noah Matthew Gaffy, Tyler Grensteiner

Physical Therapy Scholarly Projects

Purpose/Hypothesis: Blood flow restriction (BFR) is a method of training that utilizes a tourniquet style cuff to limit the amount of blood flow to a working muscle during exercise. This method of training allows an individual to train at lower intensities while still gaining similar results to more traditional types of training. It has been shown in research that low intensity BFR has several benefits to structures distal to the level of the tourniquet, but minimal research has been conducted to investigate the benefits to proximal structures. This study is aimed at examining the proximal effects of BFR training on …

The Legitimacy Of International Law: A Kantian-Rawlsian Account, Taeyang Lee

Philosophy

This paper aims to answer the question of whether international law has legitimacy and value despite the absence of global centralized coercive enforcement and whether the concept of legitimacy developed in domestic law theory can be applied to international law. By avoiding the two extremes that claim that international law is nothing more than a non-binding agreement, or that it requires the centralized enforcement of a world government, I will defend a middle position that explains the moral binding force of international law when it satisfies conditions of legitimacy. Drawing on Kant's Universal Principle of Right and Ripstein's three defects …

Improving Outreach To Residents Through Semi-Structured Interviews, Emmett Booth, Mlis, Ahip, Gary Kaplan, Mlis, Ahip, Abby Adamczyk, Mlis, Ahip, John Caruso, Md

Academic Commons and Scott Memorial Library Staff Papers and Presentations

Objectives

Our academic medical center has a large number of residents and fellows across programs based out of multiple hospitals, five of which receive direct support from the libraries. Two librarians supporting the scholarly activities of residents and fellows were hired by the university in the last six years. As these positions evolve, we seek to understand if outreach is working, whether support is effective, and whether scholarly support needs are changing. Building on survey results from last year,1 the team is conducting interviews with residents and program directors to better understand their perceptions of library support and services.