Digital Commons Network^™

Always Green, Ever Living, Anna Plante

Honors Theses

The Creative Honors Thesis, “Always Green, Ever Living," is an experimental essay film that explores the complexities and contradictions of environmental conservation, up against the contemporary climate crisis. The film is centered on Muir Woods National Monument and follows a young girl's relationship with nature. The film reflects on how protected natural spaces are influenced by systems of funding, access, and interpretation, as well as broader environmental pressures. Using a combination of archival footage, original imagery, narration, and ambient sound, the project adopts the essayistic structure that prioritizes reflection over linear storytelling.

Toward Completeness Theorem For Guarded Kleene Algebra With Tests, Hung Pham

Honors Theses

Code refactoring is a fundamental practice in software engineering, in which a program is restructured without changing the actions it performs and the results it produces. To carry out refactoring with confidence, one requires a formal method for verifying that two programs are equivalent. Guarded Kleene Algebra with Tests (GKAT) provides such a framework, an algebraic system designed to reason about a natural class of programs, namely those in which every branch and loop is governed by a Boolean condition, such as if–else and while statements. Central to GKAT is a finite set of algebraic axioms for deriving program equivalences. …

Temperature-Dependent Optical Properties Characterization Of Thermophotovoltaic Selective Emitter (4h– Sic, Aln Ceramic, And Aln/Al2o3), Po-Chao Huang

Honors Theses

Thermophotovoltaic (TPV) systems convert thermal radiation into electricity, and their efficiency depends strongly on the temperature-dependent optical response of the emitter materials. To support the design of high-temperature selective emitters, we characterized the thermo-optical properties of aluminum nitride ceramic (AlN), silicon carbide (4H– SiC), and aluminum oxide on aluminum nitride (AlN/Al2O3) thin film/substrate pairs, as a promising example of a bilayer emitter. Spectroscopic ellipsometry measurements from 240 nm to 2500 nm were performed while heating samples from room temperature to 600 °C. Using general oscillators modeling, we established accurate temperature dependent optical models consistent with literature values. Increasing temperature revealed …

Leveraging Machine Learning Techniques To Identify Catastrophic Outliers In Photometric Redshift Estimates, Jason Yoo

Honors Theses

Leveraging the unprecedented data volumes from modern astronomical surveys, this work addresses the critical challenge of identifying catastrophic outliers (COs) in photometric redshift (photo-z) estimates. Reliable redshift estimation is essential for precision cosmology, yet COs (galaxies with severely erroneous photo-z) can introduce significant systematic bias. We develop and evaluate two machine learning approaches for robust CO identification: a multilayer perceptron (MLP) utilizing photo-z point estimates and probability distributions, and a convolutional neural network (CNN) leveraging raw 5-band photometric images. Using datasets emulating LSST conditions, we demonstrate that the MLP model achieves high accuracy and stability across redshift bins, correctly identifying …

From Sediment To Mangrove: Tissue-Specific Metal Accumulation In Red Mangroves Of Southeastern Florida, Sophie Welch

Honors Theses

Coastal wetlands near industrialized waterways face increasingly heavy‐metal contamination, posing risks to benthic communities and food webs. Mangroves can influence metal cycling through sediment trapping, root‐zone sequestration, and internal physiological regulation, yet their effectiveness in urbanized systems remains debated. This study quantified concentrations of 17 heavy metals in sediments and mangrove tissues from four sites near Port Everglades, Florida, examined tissue‐specific partitioning, spatial and temporal contamination patterns, and examined the mangroves’ role in mediating metal loads. Ecological risk metrics identified STB as a contaminant hotspot with exceedances of TEL values across multiple elements (Ni, Pb, and Zn) as well as …

Evaluating Quahog (Mercenaria Mercenaria) Nursery Methods And Production Costs To Support Diversification Of Maine’S Fisheries And Aquaculture Sector, Hannah G. Wolf

Honors Theses

Populations of wild and farmed quahogs in Maine are expanding, driven by warming waters, declining soft-shell clam populations, and the need to diversify fisheries. The Northern quahog (Mercenaria mercenaria) is a potential species to diversify Maine’s marine sector, as its geographical range is expanding, and they appear more resistant to green crab predation. Enhancing wild quahog stock provides economic and social advantages for both the aquaculture and wild harvest industries. However, there is limited understanding about the commercial viability of producing quahog seed on existing farms for wild shellfish enhancement in Maine. This research, part of a larger NOAA …

Asymptotics Of Discrete Convolution Powers And Applications To Difference Schemes, Pedro Henrique Alves Silva Dos Santos

Honors Theses

In this thesis we provide Gaussian Estimates and Local Limit Theorems describing the asymptotic behavior of convolution powers of a class of complex-valued functions on $\mathbb{Z}^d$. Convolution powers arise naturally in the study of partial differential equations, as well as in random walks in probability theory. In particular, they are connected to the stability theory of difference schemes used to approximate solutions to partial differential equations. We take inspiration from the work of Vidar Thomée on stability theory to restrict our attention to convolution powers of functions whose Fourier Transforms satisfy certain local expansions. We then combine the Cauchy Integral …

From Sorochyntsi To St. Petersburg: National Identity In The Works Of Nikolai Gogol, Gary Jay Kogoy Jr.

Honors Theses

Nikolai Gogol's extant works depict a man torn between his birthplace of Ukraine and the nineteenth-century milieu of Imperial Russia. Notably, he did not reveal his name for some time after publishing his first story collection Evenings on a Farm Near Dikanka; as a result, readers attributed the tales of Ukrainian life within not to Gogol, but to the charming "Ukrainian jester" persona of Rudy Panko. Even after revealing his identity and garnering respect in the St. Petersburg literary scene, his contemporaries often viewed him as sly and suspicious because of his ancestry. Perhaps due to external doubts regarding …

Climate Change And Species Interactions Jointly Shape Migration Timing And Growth At A Critical Ontogenetic Transition In Juvenile Sockeye Salmon, Margaret E. Veatch

Honors Theses

Climate change is shifting the timing of biological events globally, but the mechanisms linking environmental variation to phenological changes are poorly understood in many systems, particularly those where individuals undergo ontogenetic habitat shifts. Here, I examined the join influence of climate-driven environmental variability and species interactions migration timing and body size at migration in juvenile sockeye salmon (Oncorhynchus nerka) in Lake Aleknagik, Alaska, using a multi-decadal dataset (1967–2024). Migration timing varied widely among years and was best explained by a combination of ice-out phenology, epilimnetic temperature, and fish densities in littoral habitats. Juvenile sockeye salmon migrated earlier in …

Racial Capitalism And Black Maritime Geography In 19th Century Portland, Maine, Jeremy Harrison

Honors Theses

Portland, Maine, is located on the rocky shores of the Atlantic Ocean and has served as home to a diverse population that has benefited from the economic and social aspects of the shipping and trading industry. This port city in one of the northernmost regions of the United States was one of the last stops for ships carrying goods before reaching the city centers of the Americas and Europe. As a result, during the late 18th and early to mid-19th centuries, skilled and unskilled Black laborers from somewhat fringe regions within the Atlantic migrated to Portland in search of not …

The Role Of Mscs In The Il23/17 Pathway And Their Response To Mechanical Stress, Norma Aileen Dominguez Jimenez

Honors Theses

Mechanical stress plays a central role in shaping cellular behavior within skeletal tissues. At the enthesis, where tendons and ligaments attach to bone, repeated mechanical loading is strongly associated with inflammation and the development of ankylosing spondylitis (AS). Although mesenchymal stem cells (MSCs) are known to contribute to tissue structure and repair at these sites, their potential role in inflammatory signaling, particularly within the I 23/IL 17 pathway, remains unclear. In this thesis I investigated whether MSCs are capable of expressing cytokines involved in this pathway and how mechanical stress and differentiation influence this expression. Using the mouse derived C3H/10T1/2 …

Metamorphosed Components In Cv Chondrites Camel Donga 003 And Camel Donga 040 As Evidence For Varying Degrees Of Metamorphism Within The Parent Body, Kathryn E. Stone

Honors Theses

The CV carbonaceous chondrites are a group of primitive stony meteorites that record early solar-system evolution processes. They are typically of low metamorphic grade, though some metamorphosed CVs have recently been found. Two CV chondrite breccias, Camel Donga 003 (CD 003) and Camel Donga 040 (CD 040) consist of multiple lithologies. CD 003 consists of three lithologies, one of which – Lithology C – has been metamorphosed to petrologic type ~3.7 (Alevy et al. 2025). CD 040 consists of two lithologies, one of which is metamorphosed to petrologic type 3.7 (Dunn and Alevy, 2024; Dunn et al. unpublished). Both samples …

A Regime Of Fear: Barriers To Healthcare Access In Times Of Intensifying Anti-Immigrant Rhetoric And Immigration Enforcement, Kathryn F. Masetti

Honors Theses

The U.S. immigration regime produces the conditions that deny immigrants equitable access to healthcare. The Trump administration’s second term, characterized by aggressive immigration enforcement and anti-immigrant rhetoric, continued to intensify these conditions, contributing to a widespread decline in healthcare utilization by immigrant patients throughout the United States. This thesis investigates how policies and rhetoric from the Trump Administration, including immigration enforcement, shape the barriers that immigrants with and without status encounter when accessing healthcare services in Maine, and how the fear of surveillance, detention, or deportation influences how immigrant communities perceive and utilize healthcare services. Two in-depth semi-structured qualitative interviews …

Ultra-Processed Or Ultra-Addictive? A Demand-Based Redefinition Of Ultra-Processed Foods, Braden Jondro

Honors Theses

Ultra-processed foods now comprise the majority of the U.S. food supply and have been directly associated with 32 chronic diseases including obesity, cardiovascular disease, cancer, and diabetes. Current classification systems such as NOVA provide a useful framework for identifying food processing, but rely on broad and subjective categorizations that may not capture the mechanisms most closely associated with promoting persistent overconsumption. In particular, existing classification systems remain limited in their ability to evaluate addiction-like behaviors associated with highly processed foods, including persistent purchasing patterns, reinforcement effects, and substitution responses. This paper introduces the Ultra-Processed Food Intensity (UPFI) index, an objective, …

Three-Photon Rydberg Eit Lineshape Analysis In Rubidium, Jackson Lake

Honors Theses

Electromagnetically Induced Transparency detection of high-lying Rydberg states in room-temperature rubidium vapor was investigated using a four state ladder-type excitation scheme with light provided by three External Cavity Diode Lasers (ECDLs) at 780 nm, 776 nm, and 1266 nm. This detection technique was studied by characterizing the lineshape parameters of the EIT transmission peak, specifically the height, width and area of the transparency window as functions of the dressing and coupling laser powers. With the goal of characterizing the linewidth of the transmission signal, a confocal etalon was built and implemented in the optical setup to perform frequency calibration of …

Enumerating Matrices Of A Given Order Over Finite Fields, Thor Richard Gabrielsen

Honors Theses

This thesis derives a generating function that describes the matrices of a given multiplicative order over finite fields of a given order assuming that the order of a field is not a divisor of the desired order of the matrix. This is done by using the power series known as the cycle index derived from the rational canonical form. This index can be factored, and using the fact that the minimal polynomial divides some polynomial of the form x^k − 1 we can show that the minimal polynomial is squarefree. This sufficiently restricts the form of the rational canonical form …

Brewing Resilience: Cooperatives, Micro-Mills, And The Quest For Survival In Costa Rica's Changing Coffee Landscape, Leila N. Iredell

Honors Theses

This thesis examines how different organizational models in Costa Rica's coffee sector shape producers’ ability to capture value, build resilience, and sustain rural livelihoods in a rapidly changing global market. In comparing traditional cooperatives and new micro-mills, I examine specifically how control over the value chain, access to markets, and social infrastructure differ across models and what these differences mean for the farmers who depend on them. This project analyzes how the collapse of international price agreements and decades of market volatility drove producers toward new strategies, from independent processing and direct trade to coffee tourism. Costa Rica stands as …

Blood And Belonging: Remembering Massacres Of The American West In The Twentieth Century, Mountain Meadows And Sand Creek, Kenzie Burns

Honors Theses

The late nineteenth and early twentieth centuries marked a turning point in mainstream America’s sense of national identity. A wave of nostalgia for the American Frontier enshrined the region’s idealized nineteenth-century past as myth. A key part of the story is romanticized violence—often depicted through cultural imagery of cowboys, gunfights, and battles with American Indians. This project seeks to understand more about how violence is represented in the cultural memory of the American Western past. Within the past twenty years, scholars of the American West have begun to incorporate the study of memory into their scholarship, frequently with how cultural …

Borrowed Mantles: Neoclassicism, Theology, And The Construction Of Authority In Phillis Wheatley-Peters, Zoe N. Lament

Honors Theses

This thesis examines how Phillis Wheatley-Peters established literary and intellectual authority within an eighteenth-century world that questioned both her authorship and her intellectual capability as an enslaved Black woman. Rather than focusing on the external validation provided by the prefatory materials to Poems on Various Subjects, Religious and Moral (1773), this study argues that Wheatley-Peters constructs authority through the poetry itself. Specifically, it explores how her use of neoclassical poetic conventions alongside Christian theological language functions to establish credibility and strengthen her moral and intellectual arguments.

Through close readings of poems including "On Being Brought from Africa to America" and …

Analyzing Rydberg Atoms Of Rubidium At Room Temperature: Applying Electromagnetically Induced Transparency, Bridger Stiles

Honors Theses

This thesis describes an experimental exploration of electromagnetically induced transparency (EIT) in atoms of 85Rb using a new MOGLabs external cavity diode laser. A two-step ladder technique of EIT was applied using a 5S_1/2→5P_3/2 probe transition and 5P_3/2→nD_5/2 coupling transitions. Significant apparatus tuning was done, including developing a reliable procedure of regulating frequency and scanning the coupling laser over a sufficient mode-hop free range. A Doppler-reduced technique was applied by counter-propagating the probe and coupling beams through the Rb vapor cell. EIT signals were collected at various probe and coupling laser powers to analyze changes in signal size and linewidth. …

Between Commodity And Culture: Tea Advertising As A Site Of Imperial Ideology And Anti-Colonial Resistance In India, Sydney Pascal

Honors Theses

Between the late nineteenth century and Indian independence in 1947, tea advertising became a key site through which imperial authority and Indian nationalism were negotiated. Drawing on advertisements, trade journals, and visual marketing campaigns produced from the 1880s through the 1950s, this honors thesis argues that tea advertising was a cultural and political mechanism through which the British Empire attempted to normalize imperial consumption and legitimize colonial authority. British campaigns framed tea as modern and routine while obscuring the exploitative labor systems and landscape transformations that sustained plantation production in Assam. As nationalist movements expanded in the early twentieth century, …

Pursuer Evader Surveillance Game Control Theory And Motion Planning, Zijie Mu

Honors Theses

This thesis studies the pursuer evader surveillance game with a triangular obstacle in the short-term. In the game, the pursuer aims to maintain surveillance of the evader as long as possible while the evader aims to break surveillance in a finite time. We classify the player strategies into ideal ones and best admissible ones. The outcome of the game is determined by line of sight. We reduce the 4D game to a 3D game with an upward motion for a small time interval to terminate the game. When the evader starts outside the threshold, we show that there exists an …

Formal Vs. Informal Disclosure Of Campus Sexual Assault: Social Reactions, Institutional Responses, And Associated Posttraumatic Stress, Karyna Fowler

Honors Theses

With research demonstrating increasing rates of sexual victimization on college campuses (Koss et al., 1987; Koss et al., 2022), sexual assault disclosure has become a critical construct with implications for victim-survivors’ posttraumatic stress (PTS) and healing. In the present mixed-methods study, college students (N = 558) at Bucknell University completed a survey assessing sexual victimization, disclosure, peer responses, institutional betrayal and support, and PTS; a subset (n = 9) participated in qualitative interviews examining social reactions, barriers to disclosure, and present functioning. Consistent with hypotheses, women reported significantly higher rates of sexual victimization than men; disclosure was relatively infrequent (26.5%) …

Sangha: Displacement And Memory In Nikkei Dena, Isabella Rae Uriu

Honors Theses

Sangha: Displacement and Memory in Nikkei Dena explores how layered displacements have shaped the Nikkei (Japanese-American) community in Altadena and Pasadena (Dena), CA, and how Nikkei resist forces of displacement and ‘unbelonging’ through cultural practice, community care, and memory-work at the Pasadena Buddhist Temple. This thesis argues that these practices of place-making build belonging and sustain the Nikkei community across displacement; particularly, the forced removal and incarceration of people of Japanese ancestry during World War II, freeway displacement during the mid-century, and most recently, the 2025 Eaton Fire, which has displaced tens of thousands of Denans, including a small, but …

An Analysis Of Volcanic Lightning And Its Controlling Factors, Nathan Stamford

Honors Theses

Volcanic lightning, first documented during the 79 AD eruption of Mount Vesuvius, includes any electrical discharge that is generated during a volcanic eruption rather than a thunderstorm. By analyzing individual eruptions and performing laboratory experiments, previous research has identified multiple controlling factors that influence the charging mechanisms and generation of volcanic lightning. While the previous research has made significant discoveries about the phenomenon, the exact relationship between many of these controlling factors and volcanic lightning generation has been poorly quantified. In this study, we investigate these controlling factors and show that they have a wide range of influence over volcanic …

The Divide Of Women’S Health: Systematic Thinking Of Women, Tasfia T. Howlader

Honors Theses

Women’s health has constantly been changing- from public health infrastructure to health policies, and even medical advancements. Yet, the struggles are persistent within the gaps present in women’s health. The Socio-Ecological Model (SEM) explains interactions between different levels of relationships, which result in health outcomes that vary from individual factors to environmental factors. Applying the SEM to describe health disparities can help explain how the relationships an individual has influenced their health. This project serves to exemplify these different levels while discussing the tailoring of services to the needs and the importance of populations based on their experiences. Specifically, adhering …

A Mixed-Methods Cross-Cultural Analysis Of Trust, Parenting, And Well-Being Of Emerging Adults In The United States And Romania, Matthew Bucaloiu

Honors Theses

Trust is linked to emerging adults’ higher well-being. To our knowledge, few studies explore U.S. and Romanian emerging adults’ trust in others and their parents and their relationships to dimensions of parenting and well-being. This mixed-methods project examines cross-cultural differences and similarities in the relationships between trust, parenting dimensions, and well-being in two countries. With self-report quantitative data from 152 U.S. and 233 Romanian emerging adults, Study 1 found positive correlations between general trust dimensions, trust in mothers and fathers, parental care, and well-being, while psychological control was negatively correlated with trust and well-being. Multiple regression analyses revealed that for …

Constructing Descriptive Representation: A Study Of Contemporary Political Figures In The United States, Emma Zalewski

Honors Theses

Political representation in the United States depends not only on who the officeholders are, but on how they publicly perform identities such as gender, race, class, religion, and profession in ways that shape trust and legitimacy. Existing work on descriptive representation and performativity explains why shared identities matter, but it often treats identity too much like a fixed demographic category rather than a strategic and audience-sensitive rhetorical practice, leaving the question of how politicians actually deploy identity across different political settings unexplored. This project addresses that gap by showing that identity claims are best understood as deliberate performances that vary …

Un-Determining The Overdetermined Body: Anorexia Nervosa And Selfhood In What I Lost By Alexandra Ballard, Maddalena (Maddy) R. Grieco

Honors Theses

This thesis examines the intersection between young adult fiction and anorexia nervosa through the lens of Alexandra Ballard’s 2017 novel, What I Lost. The fictional space of the novel interacts with the larger trends of American culture and society, forming a connection between the external world and the protagonist’s personal experience with anorexia nervosa. Specifically, this thesis explores three external forces–the fashion industry, the transmission of generational ideals and habits, and the institutional recovery center–that are mapped onto the site of the female body, resulting in the expression of anorexia nervosa. The following chapters detail each external influence, respectively, …

Deep Learning Approaches For Voltammetric Analysis Of Coffee, Ryan Koes

Honors Theses

This thesis investigates deep learning approaches for voltammetric analysis of brewed coffee using a low-cost electrochemical system and screen-printed electrodes (SPEs). Traditional analytical methods, such as high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS), provide precise quantification of key compounds but require expensive instrumentation and specialized expertise, limiting accessibility. While SPEs offer a more accessible alternative, they yielded poor results with traditional processing; however, when combined with a neural network, the system proved more effective. In experiments with 132 coffee samples, mean errors for caffeine, CGA, and TDS predictions were 52.98 ppm, 70.48 ppm, and 0.08%, respectively. These findings …