Digital Commons Network^™

Sedimentology, Paleontology, And Depositional Environments Of The Upper Devonian Lock Haven Formation In West Burlington Quarry, North-Central Pa, Michael Harman

Honors Theses

The Upper Devonian Lock Haven Formation in north-central Pennsylvania preserves evidence of significant climactic and evolutionary transitions, including the fin-to-limb transition and initial arborescence. The formation contains abundant sedimentary features, palynomorphs, trace fossils, and fish body fossils, making it crucial for reconstructing these paleoenvironments. However, integrated studies on the Lock Haven Formation are rare. This study characterizes the depositional environments, ichnology, paleontology, and age of the Lock Haven Formation. A recent exposure at the Insinger-Ward West Burlington Quarry reveals three middle to early late Famennian lithofacies associations (FAs). FA1 consists of red sandstone, shale, and mudstone containing rhizoliths (deeply penetrating …

Origins Of Musical Preferences: Infants' Responses To Sung Vocal Timbre, Hayley Leopold

Honors Theses

Understanding the origins of aesthetic preferences remains an important question in psychology, particularly in domains such as music where both biological constraints and cultural learning play important roles. While adults exhibit consistent preferences for certain musical features, including aspects of vocal quality or timbre, it remains unclear whether these preferences reflect early-developing perceptual biases or emerge through experience. The present study addresses this question by adopting a developmental paradigm previously used in the visual domain to examine whether infants’ responses to music align with adult aesthetic evaluations.

Twenty three infants between 8 and 12 months of age participated in a …

Utilizing Computer Modeling To Optimize Electric Fields Within Xenon Time Projection Chambers, Miles Meloni

Honors Theses

XENONnT is a physics experiment designed with the goal of detecting dark matter particles. The detector is a time projection chamber; a series of charged electrodes creates an electric field, surrounding a central body filled with liquid and gaseous xenon. Photomultiplier tubes (PMTs), positioned on either end of the chamber, serve to detect light signals. We seek to minimize the root mean square of the electric field norms experienced by the PMTs. This quantity corresponds to the variance in the electric field observed by the PMTs. Establishing a consistent electric field is important to maintaining these sensitive components. The electric …

Inequality In The Urban Forest: Modeling Tree Canopy Dynamics Through Demographics And Restoration Strategies, Eve Johansson

Honors Theses

Urban tree canopies play an important role in environmental quality, public health, and neighborhood livability, yet their distribution is highly uneven and often reflects historical patterns of inequality. In Brooklyn, long-term processes such as redlining, uneven development, and demographic change have contributed to persistent disparities in access to green space.

This thesis examines how urban tree canopy evolves across space and time in Brooklyn and how different restoration strategies affect long-run outcomes. The analysis uses demographic and canopy data from 1990-2020, considering race, income, employment, and educational attainment. Among these, education is the most consistent predictor of canopy coverage, with …

A Web-Based Wizard-Of-Oz Platform For Collaborative And Reproducible Human-Robot Interaction Research, Sean O'Connor

Honors Theses

The Wizard-of-Oz (WoZ) technique is widely used in Human-Robot Interaction (HRI) research, but two persistent problems limit its effectiveness: existing tools impose technical barriers that exclude non-engineering domain experts (the Accessibility Problem), and the fragmented landscape of robot-specific implementations makes interaction scripts difficult to port across platforms (the Reproducibility Problem- concerning execution consistency and portability, not third-party replication). Through a literature review, I identified three design principles to address both: a hierarchical specification model, an event-driven execution model, and a plugin architecture that decouples experiment logic from robot-specific implementations. I realized these principles in HRIStudio, an open-source, web-based platform providing …

The Discrepancies In Voter Perception Of Male And Female Political Candidates: Biases Of Characteristic Traits And Policy Priority, Julia Piver

Honors Theses

Gender remains a defining factor in how political candidates are perceived by the American electorate, shaping not only evaluations of characteristic traits but also perceived policy priority. These discrepancies are rooted and propelled by traditional gender roles from the 1900s. This thesis shows that the perceptions of female and male political candidates differ depending on the informational environment as well as the voter demographics. I used both a quantitative nationally representative survey and a qualitative interview of students on Bucknell's campus. The date revealed that individuals in lower information environments are more likely to enact gender stereotypes along traditional gender …

Quantitative Assessment Of Roasted Coffee Freshness Over Time Using Multi-Parameter Analysis, Maya Fetzer

Honors Theses

Roasted coffee undergoes continuous chemical and physical degradation after roasting, yet industry freshness standards remain empirically defined rather than grounded in measurable parameters. This study developed a multi-parameter framework for quantifying roasted coffee freshness by integrating gas-phase and solid-phase analysis, backed by human sensory evaluation, across three roast levels — light (City+), medium (Full City), and dark (Vienna) — over a four-month storage period. CO2 off-gassing was monitored continuously for 30 day, gas chromatography-mass spectrometry (GC-MS) tracked volatile compound changes in headspace gas, and Fourier transform infrared-diffuse reflectance spectroscopy (FTIR-DRIFTS) quantified oxidation-associated functional group changes, and microindentation assessed bean stiffness. …

Barriers To Immunity: Understanding Covid-19 Vaccine Uptake In Africa, Emilia Blechschmidt

Honors Theses

This thesis examines the factors influencing COVID-19 vaccine uptake across African countries, with a focus on structural, informational, and behavioral barriers to immunization. Drawing on cross-country data, the study analyzes how access to transportation, reliable information, and healthcare resources shape vaccination rates, alongside the effect of demographics and institutional factors in shaping individual perceptions of risk and vaccine safety.

The findings emphasize that the broader strength and preparedness of national health systems strongly influence vaccine uptake. Countries that demonstrated higher coverage of routine childhood immunizations, such as polio and hepatitis B, also tended to perform better in COVID-19 uptake efficiency …

Combining Haptic Feedback With Electromyography To Study Knee Injury In Stationary Cycling, Christopher Kirby

Honors Theses

Patellofemoral Pain Syndrome (PFPS) is the most prevalent overuse injury in cycling, often linked to altered neuromuscular activation patterns of the quadriceps and hamstrings. While sensory feedback has successfully modified cyclists posture, there is a critical lack of evidence-based interventions targeting the underlying muscle activation imbalances associated with chronic knee pain. This study aimed to develop and validate a novel, real-time biofeedback system that utilizes electromyography (EMG) to trigger vibrotactile cues, aiming to shift muscle onset timing earlier in the pedal stroke to mitigate PFPS-related imbalances. A closed-loop system was engineered by integrating a Delsys EMG system with a SageMotion …

Design And Analysis Of Energy Recovery Methods For Reduced Aircraft Emissions, Joshua C. Hauck

Honors Theses

Aircraft flights are an increasingly popular mode of transportation. However, their harmful impacts on the environment are a growing concern. Many engineers have worked to develop fully electric aircraft to address this issue. Although they are much more sustainable than conventional aircraft, electric aircraft encounter severe limitations imposed by current battery technology. One alternative route engineers have taken is developing energy recovery methods (ERMs). These are marketed as devices that reduce aircraft fuel consumption without significantly changing their structure and functionality, making them an excellent short-term solution. However, there is little to no consideration of the tradeoffs induced by the …

Imagined Afterlives: Anti-Black Medical Violences In Contemporary Black Arts, Katie Schadler

Honors Theses

“Imagined Afterlives: Anti-Black Medical Violences in Contemporary Black Arts” is a multi-genre exploration that studies the following works: Venus (1996) by Suzan Lori Parks, Get Out (2017) by Jordan Peele, and Dawn (1987) by Octavia Butler. I respectively study an experimental play, a psychological horror film, and a speculative novel to understand how Black creatives are depicting and responding to anti-Black violences, particularly medical violences. This work brings together Black art spanning from the late 1980s to 2017 as well as historical events and figures from the eighteenth century all the way to a not-so-distant future. While these works defamiliarize …

Group-Based Integer Factorization: Theory And Performance, Phuong Cao

Honors Theses

Integer factorization, the problem of finding a nontrivial factor of a composite integer N=pq for large primes p,q, particularly at the size of RSA moduli, is a notoriously difficult challenge that takes classical methods such as Trial Division and Fermat’s Algorithm trillions of years to solve. This thesis studies four probabilistic algorithms that exploit algebraic group structures to achieve significantly better, subexponential efficiency for certain classes of N: Pollard’s p-1, Williams’ p+1, Lenstra’s Elliptic Curve Method, and Pell’s Conic Method. In each case, the algorithm operates on a group over ℤ/Nℤ that decomposes, via the Chinese Remainder Theorem, into corresponding …

Paleoflood Chronology For The West Branch Of The Susquehanna River Using Abandoned Chute Channel Sediments, Pennsylvania, Usa, Juliette A. Vanluven

Honors Theses

Anthropogenic climate change is altering the hydrologic cycle, increasing flood frequency and severity, with associated increased risks in population exposure. This is associated with increasing risks to the population of the Susquehanna River Valley, which supports over 600,000 people today. However, our understanding of the frequencies of large floods is limited by relatively short instrumental records. By studying sediments from an abandoned chute channel in the Robert Allen Natural Area near Williamsport, PA, we can extend the existing flood records using paleoflood slackwater sediments along the West Branch of the Susquehanna River.  Sylvan Dell is an abandoned chute channel that …

Assessing Relations Between Rape Myth Acceptance, Prior Sexual Victimization, And Bystander Intervention Behavior, Zoe Mendel

Honors Theses

Campus Sexual Assault (CSA) remains a very prevalent issue in higher education (Koss et al., 2022). Through cultural norms, sexual violence is often normalized, with blame frequently shifted away from perpetrators and onto victims. Rape myth acceptance (RMA) contributes to harmful harmful attitudes that justify or minimize sexual violence (Lonsway & Fitzgerald, 1994). Prior research suggests that lower endorsement of rape myths is associated with greater prosocial bystander intervention behavior (McMahon, 2010); however, findings on the role of prior victimization are mixed. This study used a mix-method approach, including a survey and interviews. Results indicated that members of Greek life …

Sedimentological Characterization Of Main And Chute Channel Scroll Bars Along The Kantishna River, Alaska, Cooper Sentz

Honors Theses

Scroll bars, arcuate sediment ridges found along the inner banks of river bends, are common floodplain features in meandering river systems that form during lateral channel migration. Two hypothesized formation mechanisms described in prior studies are the aggradation of suspended load onto abandoned inner bank levee (IBL) deposits during overbank flow and the migration of transverse bar packages from the channel bed up onto the point bar during flooding events. To study the sedimentology and geometry of these features, we conduct remote sensing and field analysis on a 60 km portion of the Kantishna River, AK: a highly sinuous, pro-glacial …

Paradise Lost And Character Motivation: Sinful Behavior Or Inferiority Complex?, Esperanza Barrios

Honors Theses

Sin is a concept that is always viewed through a religious perspective. But, through Paradise Lost, John Milton was able to bring further understanding towards human nature and one’s own sense of committing what’s perceived as sinful behavior without the veil of religion glazing over academics' understanding. In religious terms, sinful behavior is the idea of defying God’s commandments, but for this research, sinful behavior may be described as abnormal behavior that damages our best interests and relationships, usually for selfish gains. Each of Milton’s main characters, Satan, Adam, and Eve, fell from grace because all three damaged their relationship …

Microsolvation Effects Of 1,1-Dimethyl-Biguanide (Metformin), Jasmine L. Sanders

Honors Theses

The microsolvation of a 1,1-dimethyl-biguanide hydrochloride molecule in the presence of water molecules illustrates the initial interactions between the common drug metformin and water. This explicit water-solvation approach employs coupled-cluster theory with an explicit-correlation F12 correction and the cc-pVTZ-F12 basis set to determine the optimalgeometry of the molecule and to observe intermolecular interaction energies. 1,1-dimethyl-biguanide hydrochloride (an antidiabetic agent, metformin) is constantly in contact with water molecules in the human body, where it reduces intestinal glucose absorption, lowers hepatic glucose sensitivity, and improves overall insulin sensitivity to lower blood-glucose concentration. The B3LYP method with an aug-cc-pVTZ basis set is used …

Pursuer Evader Surveillance Game, 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 a boundary separating two different local regimes. When the evader starts inside the threshold, we show that there exists an admissible evader that maintains an …

Toggling (De) Legitimization: How Presidential Candidates Framed Israel And Antisemitism On The 2024 Campaign Trail, Kate Chasin

Honors Theses

This study explores how Joe Biden and Donald Trump changed the way they framed Israel and antisemitism in speeches on the 2024 campaign trail, depending on whether they were speaking to a Jewish or non-Jewish audience. 55 speeches were examined, containing language on American-Israeli relations, the Israel-Hamas War, and antisemitism, manually categorized by frame, and compared for rhetorical shifts based on whether the audience was Jewish. When speaking to a Jewish audience about Israel, candidates humanized themselves as a campaign tool. When speaking about antisemitism, candidates used the form of hatred as a campaign tool.

Spillover Effects Of Medicare Advantage On Fee-For-Service Post-Acute Care Spending, Nyel Bangash

Honors Theses

Does the growth of Medicare Advantage reduce fee-for-service post-acute care spending through practice-pattern spillovers, or do observed spending differences primarily reflect favorable selection? Using a county-level panel of roughly 2,700 counties (2014–2023) and a two-way fixed effects specification, I find that a one percentage-point increase in MA penetration is associated with $9.54 less per-capita standardized FFS spending. Spending per episode falls while participation rates remain stable, consistent with practice-pattern spillovers rather than compositional changes from selection. Welfare indicators from County Health Rankings, CDC PLACES, and CMS Care Compare show no evidence that spending reductions harm health or care quality. The …

Education And The Maternal Childcare Gap: Evidence From The Uk Covid-19 Pandemic, Lara Bakhaya

Honors Theses

This paper examines whether college education shapes working mothers’ access to remote work, flexible working, and childcare hours in the United Kingdom, and whether COVID-19 school closures amplified these inequalities. Using data from the UK Time Use Survey (2016–2021), a repeated cross-sectional diary dataset spanning the pre-pandemic period and five COVID-19 waves, this paper estimates weighted logistic and ordinary least squares regressions on a sample of married or cohabiting, employed mothers. School closures serve as a natural experiment, providing an exogenous shock to caregiving demands that affected all mothers simultaneously regardless of education level. College education significantly predicted working from …

The Market Signal Of Climate Risk: Examining Disaster-Linked Insurance Costs And Home Values, Anika Donohue

Honors Theses

As natural disasters increase in frequency, the resulting rise in insurance premiums threatens a systemic housing affordability crisis across the United States. Leveraging a unique private insurance market dataset, this paper investigates the capitalization of rising premiums into home values and the resulting impact on housing affordability and underinsurance levels. Focusing on the impacts of Hurricane Florence (2018) in North Carolina, I employ a Difference-in-Differences framework to separately analyze the impacts of storm severity on property values and insurance premiums. I find that while property values decrease in proportion to storm severity, functioning as a primary risk signal, insurance premiums …

Ethics And Art: Fulfilling Your Aesthetic Obligations To The Fullest, Zoe Epstein

Honors Theses

My thesis defends the existence of aesthetic obligations, or the duty to engage with aesthetics, primarily in relation to the arts. I find completing aesthetic duties results in greater intellectual growth, virtues, and quality of life. Secondly, I argue you should consume and create human-made art over AI-generated art because human art has higher aesthetic value. Finally, I discuss the extent to which worth and non-worthy immoral art plays a beneficial role in fulfilling aesthetic obligations.

La Mode Comme Arme À Double Tranchant : Construction Et Déconstruction De L’Indochine Coloniale, Sasha Hanson

Honors Theses

Cette thèse explore la façon dont la mode façonnait le pouvoir, l’identité et la résistance dans l’Indochine française à travers trois oeuvres littéraires : Un barrage contre le Pacifique (1950) de Marguerite Duras, Métisse blanche (1989) de Kim Lefèvre et The Book of Salt (2003) de Monique Truong. En appuyant sur les théories postcoloniales de Gayatri Chakravorty Spivak, Frantz Fanon et Homi K. Bhabha, j’argumente que la mode et les vêtements font plus que révéler les hiérarchies coloniales de race, classe et genre ; ils les renforcent activement. Alors que dans son récit, Duras expose les inégalités socio-économiques à l'intérieur …

Spear, Perilous Times, And The Bright Sword: Radical Reinventions Of The Arthurian Legend In 2020s Literature, Brigid Flanagan

Honors Theses

The story of King Arthur has been told time and time again, emerging most recently as a major literary fascination for fantasy writers. The huge body of Arthurian literature published in the 20th century has been well-documented. Raymond H. Thompson’s The Return From Avalon surveys nearly two hundred works published from 1882 to 1983, noting trends and common themes that emerge over this collection. Several more scholars have examined modern Arthurian literature within a smaller scope, including Shiloh Carroll who looks into certain trends across both 20th and 21st century texts. Particular works have been the focus of closer analysis, …

Net Carbonyl Ene Reactions Of Olefins With Aldehydes, Alexandra Mock

Honors Theses

Aldehydes and olefins react in the presence of base and TMSOTf to yield homoallylic alcohols. In this net ene reaction, TMSOTf acts as a Lewis acid to activate the aldehyde, leading to a strong oxygen-silicon bond that acts as a driving force in the reaction. In the proposed mechanism, the α-methylstyrene attacks the carbonyl carbon of the TMSOTf-activated aldehyde to produce a carbocationic intermediate. Elimination using a relatively bulky base (2,6-lutidine) provides the homoallylic alcohol. This reaction has proven robust in terms of the aldehyde and olefin scope.

“What Are The Security Issues Surrounding Cislunar Space And Lunar Resources? How Do Theories Of International Politics And Territory Apply To Those Issues?”, Ina Loka

Honors Theses

In the recent decades, cislunar space has attracted significant interest among the biggest spacefaring nations, Russia, China, and the United States. Cislunar space is no longer a distant subject solely associated with scientific studies. It has become a crucial domain in the conduct of military operations and its importance has been increasingly emphasised in these states’ military doctrines. In an environment where the intentions of other actors are hard to determine and where there is a high degree of uncertainty, these three states are ramping up their (counter)space capabilities in order to protect themselves from any adversarial attacks, and to …

Mechanisms Driving Disparities In Income Mobility Across The Income Distribution, Joe Larkins

Honors Theses

This study examines intergenerational income persistence across the income distribution, testing whether mechanisms driving inequality differ between families in the top and bottom halves of the income distribution. Using data from the National Education Longitudinal Study of 1988 (NELS:88), a nationally representative longitudinal survey of 8th grade students and their parents, this research estimates an interaction model comparing parental income effects for children in advantaged versus disadvantaged economic circumstances. The analysis reveals that a $1,000 increase in parental income yields eight times greater income gains for children in the bottom half of the distribution compared to those in the top …

Crafting The “Greatest Classics” Of Girlhood: Advice Columns, Diaries, And The Emotional Lives Of American Teenage Girls, 1918-1939, Kylee Violet King

Honors Theses

“Crafting the ‘Greatest Classics’ of Girlhood: Advice Columns, Diaries, and the Emotional Lives of American Teenage Girls, 1918-1939” explores how American teenage girls who came of age between 1918 and 1939 used writing as a form of expression. As a response to the heightened anxieties—the “storm and the stress”—that was caused by the social structure of the era, teenage girls used writing in advice column letters and diaries as a form of self-fashioning, self-reflection, and self-therapy to discuss courtship, dating, and romantic relationships. Additionally, depending on the medium, writing acted as a form of advice seeking and community support. Writing …

Rockyou2024: What’S Your Password?, Yixuan Zhang

Honors Theses

Passwords remain a critical part of almost every account security system. As a result, password guessing attacks remain one of the most widespread yet profitable attacks possible. Setting a password resistant to attacks is thus an important task for account holders. In this paper, we use the RockYou2024 database, a collection of approximately 10 billion real-world passwords collected from data breaches, to analyze the characteristics of passwords found in real life. We start with basic statistical property analysis, such as length, distribution of digits and symbols, and proceed onto more complicated properties such as frequencies of combinations of characters, entropy …