Digital Commons Network^™

Comparative Analysis Of Transportation Emissions And Policy In Lahore And Los Angeles, Laiba Rehman

Master's Projects and Capstones

In 2023, exposure to air pollution killed 7.9 million people globally, becoming the second leading cause of death worldwide. Transportation emissions are among the primary drivers of this burden especially in rapidly urbanizing cities where vehicle fleets are growing faster than regulatory frameworks respond. This study examines the contribution of transportation emissions to urban air quality, public health and climate change in Lahore, Pakistan and Los Angeles, California. First, it employs a secondary data analysis of PM_2.5 and ozone concentrations and vehicle fleet composition in each city, followed by an analysis of emission inventories. Second, it evaluates the regulatory …

What Complexity Costs: Growth, Productive Capability, And The Vulnerability Of Interconnectedness, Pete Mcniff

Master's Theses

Growth depends on the sophistication of what an economy can produce, but economies that have specialized more deeply depend on the market access that sustains it. I test whether this dependence makes complex economies more vulnerable when access is disrupted, computing the Economic Complexity Index (ECI) from firm-level records in the U.S. Census of Manufactures (1850--1880) and using the Panic of 1873 as a natural experiment to measure county-level market access shocks from railroad bond defaults following Dutta (2024) and Donaldson and Hornbeck (2016). ECI predicts production and employment growth across all three decade windows, with the association strengthening as …

Climate-Driven Maritime Hazards And Marine Fuel Oil Spill Risk In The Northwest Passage, Emily Grace Parker

Master's Projects and Capstones

Shipping activity across the Northwest Passage has increased by 46% since 2011 as climate forcing drives sea ice decline, but associated risks to vessels and the environment are underestimated and rarely examined together. A literature review conducted in this study indicated that by 2070, a 5-month navigation window will expose vessels to increasingly unpredictable hazards as the region transforms from an ice- to wave-dominated regime, with wave heights increasing by 10-13% per decade. Ice hazards persist, and vessels operating in early summer and late fall will be exposed to elevated ice accretion risk that can cause capsizing and marine fuel …

Crop Yield Shocks And Conflict In Sub-Saharan Africa: Subnational Evidence From Satellite-Based Yield Predictions, Benson I. Adomako

Master's Theses

This paper examines whether crop yields affect violent conflict at the subnational level across seven Sub-Saharan African countries: Burkina Faso, Ethiopia, Mali, Malawi, Niger, Nigeria, and Tanzania, over the period 2010 to 2024. A central identification challenge is that observed yields are endogenous to conflict: armed violence disrupts planting, cultivation, and harvest. To address this, I train a machine learning model on observed maize yield and satellite and environmental features to generate predicted yields for 1,338 second-level administrative districts annually. These predictions serve as the key regressor in a two-way fixed-effects panel with district and year fixed effects. I find …

Urban Green Space As Climate Infrastructure, Wyatt W. Del Valle

Master's Theses

This thesis estimates the causal effect of urban parks on land surface temperature in the

American Southeast using a geographic regression discontinuity at park boundaries. The

result is null. Within a CCT-optimal 257-meter bandwidth across five cities, park interiors

are not detectably cooler than the land immediately outside them:−0.023 °C, p = 0.926.

A two-way fixed effects panel across 20 cities and 39 years confirms the well-documented

NDVI–LST relationship—a 0.1-unit increase in NDVI is associated with 3.4 °C lower surface

temperature—while a park size heterogeneity model runs directly into the siting endogeneity

problem, showing why naive distance gradients cannot be …

Cyberspatial Cartographies: Mapping Digital Nationhood Within The California-Punjabi Diaspora., Saihajpratap Singh Bajwa

Master's Theses

This research investigates the phenomenon of digital nationhood, the idea that a new form of community is actively produced through interactions taking place within digital social networks and forums. These spaces function as more than repositories of information or cultural archives; they are living ecosystems in which identity is constructed through mutual encounters among members of a diaspora, where shared references, meanings, and concepts proliferate across multiplex networks. The central questions animating this inquiry are: can a nation exist without a territory, and are these encounters producing what we might conceive of as a digital nation?

The Punjabi people serve …

Spatial Analysis Of Maize Yields And Household Dietary Diversity In Sub-Saharan Africa: Causal Evidence From A Machine Learning Instrument, Addi Joof

Master's Theses

MAIZE YIELDS AND HOUSEHOLD DIETARY DIVERSITY IN SUB-SAHARAN AFRICA: EVIDENCE ON THE CAUSAL EFFECT FROM A MACHINE LEARNING INSTRUMENT

Addi Joof, University of San Francisco, May 2026

This paper provides estimates of the effect of maize yield on household dietary diversity across seven Sub-Saharan African countries, using data from 36,474 maize-growing households in the Living Standards Measurement Study Integrated Surveys on Agriculture (LSMS-ISA) panels for the period 2008--2021. OLS estimates which include district and country-by-wave fixed effects yield a positive and significant coefficient of 0.070 (SE = 0.006, p < 0.001), implying that a 10 percent increase in maize yield raises the Household Dietary Diversity Score (HDDS) by approximately 0.007 food groups. Because self-reported yields are subject to classical measurement error and unobserved household characteristics confound the OLS estimate, we construct an instrumental variable using a Random Forest model trained on satellite-derived agro-environmental features including the Enhanced Vegetation Index, Normalized Difference Vegetation Index, Growing Degree Days, precipitation, and soil moisture obtained from Google Earth Engine at the GPS-coordinate-by-year level. Our preferred 2SLS specification, which adds region fixed effects to absorb persistent sub-national geographic variation, returns a positive point estimate of 0.217 (SE = 0.206; 95% CI: -0.19 to +0.63, p = 0.294) larger than OLS and consistent with downward attenuation bias, but imprecisely estimated and statistically indistinguishable from zero at conventional levels. We interpret the OLS estimate of 0.070 as a credible lower bound on the true effect, with the IV evidence pointing to a moderately larger but uncertain magnitude. Heterogeneity analysis reveals a declining gradient across consumption quintiles the effect is strongest among the poorest households (Q1: 0.055, p < 0.01) and diminishes with wealth (Q5: 0.015, not significant) while showing no gradient across market-integration levels. These patterns are consistent with own-consumption, rather than market income from surplus sales, as the primary pathway from yield to dietary diversity. OLS estimates are positive and significant in five of six estimable countries. The findings suggest that maize yield improvements can serve as a nutrition co-investment, particularly for subsistence-oriented smallholders, though the available data do not permit a sharp causal quantification of the effect size.

Keywords: dietary diversity, maize yields, instrumental variables, Sub-Saharan Africa, LSMS-ISA, satellite …

Trust, Civic Institutions, And Crisis: A Study Of Civic Culture In Italy, Nolan Joseph Sherwood

Master's Theses

This paper examines whether cultural familism — the orientation of trust toward family at the expense of strangers and civic institutions — shapes civic institutional engagement in Italy across three levels of analysis. The first analysis links four familism indices constructed from the European Values Study (2017) to pre-COVID municipal 5 per mille tax allocation rates across approximately 7,700 Italian municipalities, finding that higher Trust Gap and Institutional Distrust robustly predict lower baseline civic giving, both nationally and within each region. The second analysis uses a Regression Discontinuity in Time design exploiting the sharp onset of COVID-19 in 2020, finding …

Evaluating Optimal Capacity And Investment Strategies For Renewable Energy Projects: A Combined Technical And Financial Approach, Helen Josephine, Indhumathi Shanmugasundaram, Sharad Gupta, Manjari Sharma

Northeast Journal of Complex Systems (NEJCS)

The global shift toward clean energy is accelerating, and by 2050 renewable sources are expected to supply more than 85% of the world’s electricity. This transition, however, introduces new layers of complexity. Wind and solar energy behave as interconnected subsystems whose output fluctuates with weather, season, and geography. Their interaction with fixed hourly demand, capital-intensive investments, and financing structures creates a multi-dimensional system in which small changes can trigger significant operational and economic consequences.  This study presents a simulation-driven framework designed to understand and optimize this complex behaviour. The framework models hourly wind and solar generation alongside projected demand to …

Words Matter: The Rhetoric Of National Security And The Reality Of Individual Rights, Christopher J. Borgen

Journal of Civil Rights and Economic Development

(Excerpt)

While the meanings of words can be flexible or contested, they are not infinitely pliable. These limits on words and their uses help define the outer bounds of legitimate state action. However, even the written law is only as stable as our interpretation of what those words mean. There is the risk that a deliberate and persistent misuse of words by states and other actors can eventually change our understanding of the law it.

Some of my work has analyzed the use of words and phrases such as “self-determination,” “sovereignty,” and “secession.” But, in this Essay, I focus on …

Perceptions Of Care: An Exploratory Case Study On Residents’ Perceptions Of Neighborhood And City Maintenance, Taylor Coats

Transforming Communities

Where one lives impacts both their physical and mental well-being. Though one’s builtenvironment is an important factor, the perception of one’s environment influences mental well-being. This qualitative study examines what influences residents’ perceptions of theirneighborhood and local governmental efforts to maintain and improve their community. Thisstudy utilized a case study methodology to interview residents, stakeholders, and politicians intwo neighborhoods in a mid-sized urban city in the Midwest (N = 16). This study identified threecore aspects that influence participants' perceptions of their neighborhoods and city efforts tomaintain and improve their community: 1) history with the city; 2) geographic location withinsegregated neighborhoods; …

A Training Needs Analysis For A Sustainable Tourism Destination Management Programme: A Practitioner’S Perspective, Catriona Murphy Dr., Shane O'Sullivan, Nicola Orio, Ilaria Doimo

Irish Journal of Tourism, Hospitality, Leisure and Event Research

While sustainable tourism practices have long been acknowledged for their potential to reduce negative impacts and enhance positive outcomes, their effectiveness is often hindered by several challenges. These include a considerable gap in skills and inadequate collaboration between practitioners and educators. To meet these pressing challenges, it is essential to strengthen awareness, enhance collaboration between industry and educators, and develop the critical skills needed to champion responsible and sustainable tourism in European regions. As the principles of sustainability advocate for equitable management of tourism destinations combined with the upward growth in tourism activity in Europe post pandemic, there is an …

Rethinking Luxury In Tourism: Slow Travel, Signature Experiences, Alternative Accommodation And Policy Interaction In The Irish And Eu Context, Maria E. Murphy, James Hanrahan Dr, John Carty

Irish Journal of Tourism, Hospitality, Leisure and Event Research

Over the past number of years, luxury tourism is changing as sustainability concerns, shifting consumer values, and new policy frameworks challenge older ideas of extravagance and exclusivity. This paper explores how modern luxury tourism is being shaped by slow travel, meaningful experiences, and stronger connections with local communities, focusing on Ireland and the wider European Union. Using an action-research approach, the study is based on the creation and running of Within the Village, a village-based luxury tourism accommodation in the west of Ireland, founded on the principles of the Italian Albergo Diffuso (scattered hotel) sustainable model. Through repeated cycles of …

Learning Through Lowriding: Knowledge In The Garage, Bianca Elisa Arellano

Dissertations

Lowriding culture has long been situated at the margins where state-sanctioned criminalization processes delegitimize the intellectual agency of lowriders, rendering their knowledge systems institutionally illegible. This dissertation argues that such epistemic invisibility denies lowriders the agency to define their own intellectual contributions, and it reclaims lowriding as a site of profound resourceful innovation. Grounded in Chicana feminist epistemologies, the study theorizes how nepantla—the process of navigating and living at the margins—works alongside rasquachismo, the working-class sensibility through which constraint becomes a site of knowledge production, to frame lowriding in Chicanx San Diego communities as an embodied tension where subversive, resourceful …

Tùn-Scene And A-Futurism: Biomythography, Opacity, And Posthuman Imagination, Minglu Du

Masters Theses

Grounded in the author’s position as a Chinese feminist, this thesis examines how East Asian women, as well as East Asian-coded femininity more broadly, are objectified and othered within futurist visual culture in the age of artificial intelligence. Through an engagement with ornamentalism, techno-Orientalism, and posthumanism1 , it argues that the persistent figure of the feminized humanoid cyborg continues to reproduce colonial and patriarchal structures of desire, rendering marginalized bodies as fetishized and violable surfaces. In response, the thesis develops Tùn-Scene, a biomythographic artistic framework and the first experiment in what the author provisionally names A-Futurism. Drawing on Donna Haraway’s …

"The Appearance Of The Confederate Flag In These Seas:" The Css Sumter, Neutrality, And The International Dimensions Of The American Civil War, John Macisaac Coleman

History Undergraduate Senior Theses

No abstract provided.

Soft Bodies, Hard Frames, Emily Zhang

Masters Theses

Silk is delicate yet strong, responsive to light and air, dependent on living processes and careful labor. These qualities position silk not only as a material object, but as an instrument capable of organizing space. Rather than functioning solely as a surface or decorative textile, silk can operate as a spatial generator, shaping enclosure, movement, and environmental conditions.

For centuries, domestic courtyard houses in the Jiangnan region, located south of the Yangtze River, evolved alongside sericulture, forming spaces that were attuned to the environmental and material requirements of silk. Architectural elements such as courtyards, screened openings, flexible interiors, and canal-directed …

My Mother The Mountain, Ricky Vasan

Masters Theses

Teach me How to Write a Love Song

I catch a glimpse of my mother sitting on her bed in her bedroom from the bathroom mirror. What a rare occurrence! One I am not fortunate enough to witness as often as I would like. A moment that I know —even before it has occurred—will one day become my dearest desire for wanting to turn back time. This moment is a mirage. Once I return to my senses, after the passing of a twelve-hour lag, it will already be too late.

This is the place where I wish to work from. …

After Yellow Horse: From Passive Shelter To A Self-Sustaining Cycle, Xinyuan Liu

Masters Theses

Spatial flexibility—specifically, the ability of a single building to shift between therapeutic and productive use—offers a critical alternative to the institutional passivity of conventional care facilities, repositioning architecture as an active agent in both the financial sustainability of nonprofit organizations and the social recovery of their patients.

During my time volunteering at Yellow Horse Equine Therapy Center in Ashaway, Rhode Island, the core contradictions of the traditional equine therapy model became visible firsthand. Yellow Horse had operated for years on goodwill and volunteers. The daily reality of the facility was one of persistent understaffing: barn chores, groundskeeping, and routine maintenance …

Sites Of Departure, Kevin Tomas

Masters Theses

At all scales of human history, there exists a record: The story of how things came to be. An infinity of interconnected traces that thread the intimate and the immense into a single fabric.

Beginning from distinct points of entry, Sites of Departure explores the axes of resolution and scale in documentation, asking what becomes visible when the instruments of the dominant record are set aside. Moving between recovery and confrontation, the work questions the structures that produce our understanding, while creating new documents for future interpretation—all against the reality that to make a claim, is to claim some truth. …

Re-Assembly, Tonia Zhang

Masters Theses

Graphic design is bound by invisible defaults — software suites, standardized formats, and interfaces optimized for speed, profit, and frictionless output. Re-Assembly treats these standardized technologies not as neutral scaffolding, but as the primary material for critical inquiry. By dissecting this “default” infrastructure, the work exposes the logic of extraction and control baked into our templates and grids. Through a practice of subverting and rebuilding these everyday systems, design is pushed to operate under decentralized and open terms. This repositioning rejects the role of the designer as a surface technician, instead defining them as an active agent and an architect …

Meadowkeepers, Molly Lefanowicz

Masters Theses

New England’s cities cover the lowlands where meadows once dotted the landscape. These meadows were among the first spaces lost to development— hidden today beneath layers of concrete foundations, asphalt roads, and diligently mowed turfgrass lawns. Meadows are critical ecosystems: they support pollinators, act as seed banks for local plants, filter rainwater, sequester carbon, and build soil. But their steady disappearance is more than an ecological loss. As stewards and inhabitants of meadows, people hold a longtime cultural connection to their presence. Meadowkeepers is an effort to renew that connection.

Meadowkeepers introduces a community-scale model for meadow reestablishment in urban …

Margin:Finding Coexistence Within The Marginalized Habitats Of Cities, Zihan Sun

Masters Theses

Marginal spaces can be found throughout cities, yet they are often ignored and overlooked. Despite this, these areas play a crucial role in urban environments due to their unexpected vitality. The overlapping uses of dominant and marginal actors, including humans and non-human species such as pedestrians, pigeons, and plants, create spatial conflicts within these spaces. How can the existing conditions of marginal spaces be subtly reworked to mediate these tensions without erasing marginality?

This thesis investigates three sites in Providence across different scales, using consistent observation and documentation to understand their marginality. Different actors serve as lenses for analyzing and …

Productive Armature, Gabriel Ofem Peter

Masters Theses

What if water was all you had, what if your only source of survival was a body of water? I shudder to think that some people get to be put in this situation in the world we live in. As I understand the importance of water to survival, it is obvious that water can be the only lifeline of survival for a community. This is the experience for residents of Makoko, Lagos. Their survival depends on the Lagos Lagoon, a large body of water flowing in from the Atlantic Ocean. This research looks beyond the surface of what this community …

Chronos | Kairos: Exploring Time Through Experimental Comics And Artist’S Books, Rhea Pradeep

Masters Theses

This thesis examines how the reading experience of comics changes when they are presented in various artist’s book formats, particularly through the lens of time and space. This project encourages the practice of close reading, arguing that the physical form of a book is not only a container for the content, but also plays a part in its meaning-making. It shifts the narrative pace, perception of time and reader engagement. Research in this paper is heavily influenced by scholars like Johanna Drucker, Scott McCloud and Will Eisner. This interdisciplinary, practice-led research combines narrative analysis of experimental comics, close reading of …

Resistant Silence Engraved Trauma, Silence In Domestic Spaces, & Acts Of Resistance, Priyanka Kumar

Masters Theses

This thesis argues that silence surrounding trauma within domestic spaces is not merely an absence of speech or a condition of voicelessness, but it functions as an act of resistance. Focusing on domestic abuse within patriarchal structures, this research examines the ways trauma is embodied, negotiated, and concealed in everyday life. Central in this inquiry is the figure of the “sole witness” to abuse, those who live in close proximity to violence, endure its aftermath and negotiate survival through subtle and often unseen acts of resistance.

I am not attempting to define trauma, but the thesis explores the traces trauma …

Human After All, Ritu Mantri

Masters Theses

human

0. a being, relating to, or belonging to a person or to people.

1. an organism whose behaviour is structured by survival, instinct, and the immediate conditions of its environment.

2. a primate capable of thinking in abstractions. It makes marks, builds tools, and uses language to reflect on itself and the world around it.

3. a maker that increasingly constructs systems as a mirror of itself to store memory, meaning, and perception beyond the limits of its body.

4. an entity whose intelligence is increasingly indistinguishable from the tools and technological infrastructures it has built.

5. a superhuman …

Dead Reckoning, Jeremy A. Grail

Masters Theses

For over a century, conceptual, social, and legal frameworks have governed human relationships with technology by dematerializing data and personal information. From the early twentieth century, when human speech was converted into electrical pulses through telephone wires, to today’s pressure to integrate sensing, computation, and automation into every facet of contemporary life, electronic communications have become increasingly detached from the body and systematically defined as a weightless, immaterial asset.

This thesis refutes the industry-led myth of the “immaterial cloud” by revealing the presence and transmission of data to be a series of physical, tectonic, and spatial events that are woven …

The Right To Withdraw: Soft Boundaries And Material Refuge In The Workplace, Zhihao (Sky) Xing

Masters Theses

Traditionally, architecture has provided physical protection through solid structures and defined boundaries, while modern interior spaces have evolved further to serve function, efficiency, and the operational needs of society. These include open-plan offices, art school studios, and other public spaces like libraries. Although physical rigidity and operational efficiency have been well served by the modern built environment, the psychological experiences of those within it remain largely overlooked - a lack of privacy, emotional support, and space for emotional withdrawal.

This research explores why contemporary workplaces often expose individuals to sensory overload and why people often retreat to stairwells, restrooms, or …

Landscape Repositories: Mapping Post-Mining Narratives In Asbestos, Qc Val-Des-Sources, Qc, Rasha Lama

Masters Theses

Landscape Repositories: Mapping Social Narratives in Asbestos, QC Val-des-Sources, QC proposes the ‘landscape repository’ as a tool for landscape literacy and cultural legitimacy that integrates histories, geographies, and social narratives to inform grounded and place-based post-mining futures.

Val-des-Sources, Québec (formerly Asbestos, QC) is a place whose extraction legacies and material histories are deeply interwoven into its contemporary economy and cultural landscape. The centre of town is the Jeffrey Mine, once the world’s largest open-pit asbestos mine that is deep enough to hide the Eiffel Tower entirely. Ceased in 2012, the 130-year-old Jeffrey Mine and sixty-one other Québec asbestos sites once …