Digital Commons Network^™

Pretrial Detention, Case Outcomes, And Pretrial Recidivism Before And After The Onset Of The Covid-19 Pandemic – A Natural Experiment, Tianyin Yu

Doctoral Works at the University of New Haven

This study examined the predictors of pretrial detention, its effects on case outcomes, and the determinants of pretrial failure in the federal criminal justice system, with particular attention given to changes associated with the COVID-19 pandemic. Using administrative data from a federal district court in Connecticut, the study leveraged the pandemic as a natural experiment to assess shifts in pretrial practices and their consequences. The study addressed four primary research areas: (1) factors predicting pretrial detention, (2) factors predicting case outcomes, (3) the effect of pretrial detention (measured as release at any time, immediate release, and detention length) on case …

Advancing Sustainable Polymer Chemistry: Designing Recyclable And Degradable Polyolefins Via Ring-Opening Metathesis Polymerization, Tarek S. Ibrahim

Doctoral Works at the University of New Haven

Polymers have become indispensable materials in modern society. The majority of these materials are synthetic, petroleum-based polymers. Their lightweight nature, durability, and low cost have led to a global production of approximately 400.3 million tons annually by 2022. Due to their exceptional durability, these polymers can persist in the environment for hundreds of years, if not longer. Despite the high production volume, polymer recycling remains extremely limited, with over 90% of waste being landfilled or incinerated. This challenge has directed researchers’ interest toward sustainable, degradable polymers derived from renewable feedstocks. Ringopening metathesis polymerization is marked as a powerful method for …

Dor-E: Final Design Report, Arav Singh, August Hogen-Esch, Bruce Le, Patrick Mcgee, Spencer Major

Mechanical Engineering

I. PROBLEM STATEMENT

The Chumash Heritage National Marine Sanctuary contains a diverse array of benthic habitats that remain largely undocumented due to the financial and logistical barriers of deep-sea exploration. Traditional high-end autonomous underwater vehicles and remotely operated vehicles capable of reaching 1000-meter depths require significant surface support infrastructure and hundreds of thousands of dollars in funding. Furthermore, navigating protected ecological zones demands strict adherence to "Leave No Trace" principles. Conventional benthic landers and submersibles routinely leave metallic debris behind; many submersibles use galvanic timed releases that corrode in seawater over a set period of time or heat-activated bolts to …

Traumatic Stress Recruits An Excitatory Orbitofrontal-Amygdala Pathway To Drive Maladaptive Aggression, Mikaela Aholt

Theses

Traumatic stress is a reliable predictor of heightened aggression, yet the mechanisms linking stress exposure to aggression remain poorly understood. The Nordman lab previously found that traumatic stress activates the posterior ventral segment of the medial amygdala (MeApv) to drive persistent increases in aggressive behavior. However, why traumatic stress would engage an aggression-promoting pathway is unclear. To address this, the inputs to the MeApv were mapped and a population of excitatory, but not inhibitory, neurons in layer 5 of the medial orbitofrontal cortex (mOFC) were identified. The OFC is classically viewed as an inhibitory brake on amygdala-driven impulses, yet emerging …

The Making Of Shi'a Resistance In Afghanistan: Historical Roots, Communist Rule, And Soviet Occupation, 1978–1989, Sayed Sajjad Hojet

Theses

This thesis examines Shi'a political mobilization in Afghanistan from the 1978 Saur Revolution through the Soviet occupation, ending in 1989. It argues that Shi'a resistance was not simply a religious reaction to Marxist rule but a complex movement shaped by long-term marginalization, influenced by rival political ideas, and connected to cross-border networks in Iran. It traces how persecution under Amir Abdurrahman Khan created a system of political exclusion that shaped Shi'a collective identity before the communist takeover, and how ideologies such Marxism and Political Islam further politicized Shi'a youth in the mid-twentieth century. The PDPA's coercive policies after 1978 helped …

Avoiding White Elephants: An Empirical Assessment On The Failure Of Airport Capacity To Drive Tourism Receipts, Somanithel Kheang

Theses

This study investigates the relationship between airport infrastructure capacity and international tourism receipts across 12 major Asian and European economies from 2000 to 2019. Using a Panel Fixed Effects framework, the analysis tests the "Supply-Led Growth" hypothesis to determine if physical infrastructure expansion independently drives tourism revenue. To address potential endogeneity and reverse causality, the study employs specification where all independent variables are lagged by one year.The empirical results yield a robust null finding: airport capacity does not exhibit a statistically significant impact on tourism receipts. Conversely, government consumption is identified as a potent driver of tourism performance, with a …

Deep Reinforcement Learning-Based Equitable Post Disaster Resource Allocation Incorporating Social Vulnerability, Trevor John Mogaka

Theses

Prior Deep Reinforcement Learning (DRL) approaches frame post‑disaster recovery as a sequential decision-making problem over infrastructure elements, using graph-based system models and resilience-oriented rewards. This thesis builds on an existing DRL framework by introducing a modified CDC Social Vulnerability Index (mCDC-SVI), developed using Max-min scaling, to quantify social vulnerability.A synthetic interdependent infrastructure testbed is divided into four socio‑economic regions using federal poverty and SNAP eligibility guidelines. The DRL simulation and Deep Q‑Network architecture are retrained under a multi-objective reward function that is efficiency-equity weighted (α:β). Agents are evaluated across unconstrained and constrained budget scenarios to examine how varying α and …

Resurrecting The Lost City Of Kaskaskia: An Archival, Gis, And Archaeological Investigation Of Illinois’ First Capital, Rebecca Ramey

Theses

This thesis centers around the question of how much remains of historical Kaskaskia, Illinois in the archaeological context, and examines the common historical narrative and its lack of inclusion of non-white voices. Kaskaskia was a vibrant, diasporic community that shaped the founding of Illinois. Through archival research, ArcGIS, geophysical surveys, and an archaeological investigation, this thesis proves that it is possible to bring those voices back through the archaeological record. Kaskaskia has long been ignored by the broader research community, and this thesis aims to show just how much potential Kaskaskia has at contributing to our understanding of the founding …

Development Of Chemical Reaction Airbag Safety System For Multi-Rotor Uav To Mitigate Free-Fall Collision Impact, Brady Kent Villiger

Theses

With Unmanned Aerial Vehicles (UAVs) becoming more advanced, the demand of companies that plan to use them for commercial use has only increased. Amazon plans to use UAVs for shipping purposes, Esri uses UAVs for surveying purposes, and many government organizations use UAVs for search and rescue, infrastructure inspection, and power line inspection. With all these uses, UAV safety becomes a major concern. If a UAV were to fail mid-flight there would be an issue if it collided with a person or an expensive piece of equipment after a free-fall. In this paper, the proposed safety system would be a …

Prediction Of The Nga-West2 Average Vertical Peak Ground Acceleration Using Genetic Expression Programming, Dipankar Karki

Theses

Ground Motion Predicting Equation (GMPEs) has been proposed with the use of Genetic Expression Programming (GEP) tool using 10,080 ground motion records obtained from the NGA West2 database. For this research, moment magnitude, dip angle, rake angle, Joyner Boore Distance, depth to top of fault distance, closest distance to ruptured fault area and the shear wave velocity in top 30 m of the site have been selected as the predictor set. It was found that the results from the GEP model compared well with the existing GMPEs and validates the use of GEPs for creating GMPEs along with other regressions …

Weavecc: Symbolically-Guided Joint Exploration Of Inputs And Schedules For Concurrency Bug Detection, William Philip Dinauer

Dartmouth College Master’s Theses

Concurrent programs introduce a class of bugs that depend jointly on both program inputs and thread schedules. Exposing these bugs requires simultaneously reasoning about which code paths are reachable and which thread interleavings are possible. At the same time, many existing tools handle the problem insufficiently. Race detectors observe only the interleavings that the OS happens to produce. Fuzzers explore inputs without controlling schedules. Tools that address both dimensions together exist, but are built on interpretation-based symbolic executors that incur considerable overhead.

We present WeaveCC, a practical concurrency testing tool for C/C++ programs that jointly explores inputs and thread schedules. …

From Visual Events To Vibrotactile Feedback: A Semantic Vae Pipeline For Temporal Haptic Generation, Jiayi Liu

Dartmouth College Master’s Theses

Vibrotactile feedback can communicate system state, interaction progress, and event salience through short physical sensations. For temporal visual events, however, effective feedback must align with both what an event means and how it unfolds over time, including rhythm, duration, intensity, and repetition. This thesis examines this problem through UI flows, a controlled and common HCI setting. The proposed semantic VAE pipeline represents each visual transition as semantic haptic events, described by behavior class, communicative role, style, strength, timing, and duration. These events guide a curated behavior atlas and a convolutional variational autoencoder. The atlas identifies interpretable regions of the learned …

Effects Of M6a Dna Methylation By Bacterial Methyltransferase In Colorectal Cancer, Fabian Alejandro Mendoza Galvan

Dissertations and Theses (Open Access)

Effects of m6A DNA methylation by bacterial methyltransferase in colorectal cancer Fabian Alejandro Mendoza Galvan Advisory Professor: Angela H. Ting, Ph.D. Fusobacterium nucleatum animalis (Fna) is found in the human oral cavity and gut. A distinct clade of Fna is primarily enriched in the tumor microenvironment (TME) and within colorectal cancer (CRC) cells. This clade DNA methylation pattern is primarily catalyzed by a cell-cycle regulated methyltransferase (CcrM) ortholog, M.FnI, that targets the GANTC sequence motif through methyl-6-Adenine (m6A) DNA methylation. We hypothesized that M.FnI enzyme can induce m6A methylation abnormalities in CRC cells to promote cancer progression. Evidence for endogenous …

A Tractable Nematode Model For The Emerging Fungal Pathogen, Candida Auris, Melissa Martinez

Dissertations and Theses (Open Access)

Candida auris is an emerging multidrug-resistant opportunistic fungal pathogen. It

poses a significant threat to immunocompromised patients and those with prolonged stays in

healthcare facilities. C. auris spreads rapidly in health care facilities through enhanced

colonization of skin and abiotic surfaces. The genetic factors contributing to this ability and to

the virulence, drug resistance, and stress-tolerant nature of C. auris are largely unknown.

Current animal models of C. auris infections are not well standardized and report conflicting

results. Additional animal models of virulence are needed, especially those amenable to high-

throughput analysis. The nematode Caenorhabditis elegans has been validated as …

Targeting Breast Cancer Brain Metastasis Through Novel Combination Of Fda-Approved Orally Active Blood-Brain Barrier Permeable Ret And Tgli1 Inhibitors, Joshua Cha

Dissertations and Theses (Open Access)

Breast cancer is the most diagnosed cancer in American women, and breast cancer brain metastasis (BCBM) exhibits the worst prognoses with a life-expectancy averaging at 6 months. This short life expectancy is largely attributed to the lack of effective treatment. Many challenges remain unsolved, including the limited number of actionable targets for targeted therapy and effective blood-brain barrier (BBB) permeable drugs that are safe without promoting drug resistance. Therefore, there is an urgent call for identification of novel therapeutic targets and development of BBB-permeable drugs. One of the potential targets identified by our lab for BCBM targeted therapy is the …

Pattern Dynamics And Stochasticity Of Brain Rhythms And Spike Trains In A Tauopathy Mouse Model Of Alzheimer’S Disease, Clarissa M. Hoffman

Dissertations and Theses (Open Access)

Systems neuroscience posits that every aspect of perceived physical reality, every aspect of animal and human behavior, and every cognitive phenomenon emerges from patterns of neuronal activity. While most researchers embrace this idea, there are major difficulties in describing and analyzing these complex neuronal dynamics—spike flows produced by cells ensembles, synchronized extracellular field oscillations, and other patterns—which limits our understanding of how the activity of individual neurons and the whole-animal cognition and behavior might be connected. In particular, we lack the approaches and even the semantics for connecting the individual cell outputs and the integrated results of their activity. Current …

Characterization Of Staphylococcus Aureus Clinical Isolates From Deep Musculoskeletal Infections For An In Vitro Biofilm Model For Phage Therapy, Raquel C. Luna

Dissertations and Theses (Open Access)

The rise of multidrug-resistant (MDR) infections is a growing concern in the treatment of deep musculoskeletal infections (MSKIs) and orthopaedic device-related infections (ODRIs). Staphylococcus aureus is responsible for about one third of these infections due to its strong biofilm forming capacity, presence on human skin, and the large number of antibiotic-resistant variants. Bacteriophage (phage) therapy is now being considered as a treatment for MDR MSKIs/ODRIs. We are investigating the use of phage encapsulated into or adsorbed onto biodegradable microspheres for local delivery to the site of these MDR infections. We determined that the anti-staphylococcal phage K effectively lyses the S. …

Technical Development, Optimization, And Clinical Implementation Of Quantitative Magnetic Resonance Imaging Methods For Radiation Oncology, Lucas Mccullum

Dissertations and Theses (Open Access)

Magnetic resonance imaging (MRI) has gradually grown more important in the field of radiation oncology. This paradigm shift has grown from initial experiments with MRI of cancerous lesions in the early 1970s, to the integration of MRI images for radiation therapy treatment planning (i.e., MRI-Simulation) in the early 1980s, to the combined MRI linear accelerator (MR-Linac) becoming commercially available in 2018 which can simultaneously image a tumor and treat it with radiation. However, due to its novelty in radiation oncology, its full potential for the integration of quantitative MRI-based biomarkers has yet to be fully realized.

Therefore, this dissertation will …

From Antigen Presentation To Tumor Control: Mechanisms Of Type I Conventional Dendritic Cell-Based Cancer Vaccines, Josue E. Pineda

Dissertations and Theses (Open Access)

Type 1 conventional dendritic cells (cDC1s) are important for generating and sustaining antitumor immunity. Accordingly, the abundance of cDC1s in human tumors correlates with improved outcomes in cancer. Capitalizing on this role, we previously demonstrated that vaccination with in vitro-derived murine cDC1s elicits durable tumor control in multiple preclinical models; however, the immunological mechanisms underlying the efficacy of cDC1 vaccination remain unclear. Here, we examined whether in vitro-derived cDC1s resemble tumor-infiltrating DC populations and whether MHC-I and MHC-II antigen presentation contribute to cDC1-mediated tumor control following vaccination in melanoma.

As expected, MHC-I- or MHC-II-deficiency had minimal impact on …

Membrane Organization Of Rheb And Rhoa: Roles In Function And Allosteric Druggability, Chase M. Hutchins

Dissertations and Theses (Open Access)

Small GTPases of the Ras superfamily are membrane-bound molecular switches that regulate nearly all major cellular processes, and their dysregulation drives cancers, neurological disorders, and metabolic diseases. While anchored to cellular membranes, the catalytic domains of small GTPases undergo orientation dynamics, adopting distinct configurations that can occlude or expose effector-binding surfaces and modulate signaling output. These dynamics have been characterized in the Ras oncoproteins, but whether they extend across the superfamily and influence allosteric druggability has remained unknown.

In this dissertation, I address these questions through Rheb and RhoA, two small GTPases with complementary differences in subfamily lineage, membrane localization, …

Understanding Epigenomic Landscapes In Cancer Progression And Immunotherapy Response, Jonathan Schulz

Dissertations and Theses (Open Access)

Nonmutational epigenomic reprogramming has emerged as a key hallmark of cancer that plays crucial roles in tumor evolution during its progression and response to therapy. However, the extent and nature of epigenomic reprogramming remains poorly understood. This dissertation examines how epigenetic regulation shapes cancer progression and response to immunotherapy. Working at the intersection of cancer biology and computational genomics, it develops analytical frameworks for characterizing chromatin structure and DNA methylation across diverse tumor contexts and uses these frameworks to address two complementary biological questions: how promoter-associated chromatin organization varies across cancer types, and how epigenetic perturbation modulates tumor immunogenicity in …

Financial Technology And Household Wealth, Rongbo Zhou

Dissertations and Theses Collection (Open Access)

With the spread of mobile payment platforms in China, the micro-foundations of household financial behaviour have been reshaped, and this change is increasingly reflected in household property income. Based on microdata from the China Household Finance Survey (CHFS) for 2015, 2017, 2019, and 2021, this dissertation examines how mobile payment use affects household property income, through which channels this effect is transmitted, and how its impact differs across household groups, regional conditions, and macro-financial environments.

The empirical results show a positive association between the use of mobile payment platforms and household property income. This conclusion remains robust after controlling for …

An Empirical Study On The Impact Of Eco-Friendly Selling Points On The Purchase Intention Of Young Chinese Consumers, Yang Liu

Dissertations and Theses Collection (Open Access)

Industry consumer research widely portrays Generation Z as an identity-driven cohort that enacts sustainability values through consumption. This narrative is often generalized across cultural contexts, assuming that Western-developed green consumption frameworks can be directly transferred without structural modification. Yet Chinese Gen Z’s e-commerce purchase patterns depart notably from this depiction, raising core questions: Can Western green consumption frameworks be applied to Chinese Gen Z? If so, what theoretical and structural adaptations are necessary?

This dissertation develops and tests an integrated three-pathway model to explain green purchase intention among Chinese Gen Z consumers. The model places utilitarian benefits, self-expression benefits, and …

Securing Cloud-Native Systems: From Vulnerability Analysis To External And Insider Threat Detection, Jiongchi Yu

Dissertations and Theses Collection (Open Access)

Cloud-native systems have become the backbone of modern software infrastructure. However, their dynamic resource orchestration and complex configurability introduce a large attack surface and intricate security challenges. Adversaries can externally exploit vulnerabilities in cloud components or perform insider movement within cloud environments to launch attacks. As these systems increasingly support critical services, security breaches can lead to severe operational and economic consequences.

Despite extensive efforts in vulnerability detection and attack monitoring, existing approaches struggle to remain effective in cloud-native environments characterized by rapid evolution and inherent heterogeneity. In particular, they exhibit three fundamental limitations: (1) Insufficient understanding of defect patterns …

A Multiple Case Study Of Place-Based Promise Programs, Chad Edward Inabinet

Dissertations

This qualitative multiple case study examines three place-based Promise Programs situated in Midwestern community colleges to understand how they are designed, implemented, and experienced by staff and students. Guided by General Systems Theory, data are collected from program documents, archival sources, and 13 interviews with staff and students across three sites. Within- and cross-case analyses explore program origins, design features, partnerships, student supports, financial sustainability efforts, and outcome tracking. Findings show that: funding models shape eligibility and long-term stability; partnerships with K–12 districts, colleges, funders, and community organizations are essential for implementation; proactive supports, such as advising and mentoring, improve …

Learning About The Direct Experiences Of Very Young Children With Hearing Loss: A Feasibility Study, Jenni M. Funk

Undergraduate Honors Capstone Projects

We aimed to explore the feasibility of employing a developmentally appropriate, modified puppet interview method to elicit thoughts and perspectives directly from very young children (ages 3 to 6 years old) who are deaf or hard-of-hearing. Little is known about the direct experiences of children with hearing loss, making it difficult to improve care. In our field of speech and hearing sciences, there is no current method of gathering direct experiences of young children and placing them at the center of care. We proposed that researchers may be able to learn about the direct experiences of very young children who …

Desert Deep: The Great Salt Lake's Evanesce And The Gravity Of Recovery, Avery Truman

Undergraduate Honors Capstone Projects

The Great Salt Lake has been shrinking since the mid-19th century for several reasons, primarily due to a higher evaporation rate caused by climate change and water diversion from the Bear, Weber, and Jordan rivers. This problem will cause mass ecosystem destruction, release toxic chemicals into the air, and strand migrating birds. As an environmental studies and geography major, I’ve spent a lot of time learning about the Great Salt Lake in my courses. I decided to write Desert Deep, a series of essays, after I took my first creative nonfiction writing class. The goal was to tell the …

Body And Blood: The Black Catholic Imagination In Toni Morrison's Novels, Allison Schneider

FCRH Honors Program Theses

Religion was a powerful shaping force in Toni Morrison’s life, so it should come as little surprise that it shaped her art, as well. From the personal to the academic, her religious experiences deeply inspired her writing, and the spiritual dimension of her work has become a prominent topic among Morrison scholars. Despite a vast body of research dedicated to the religious in her novels, the prevalence of Catholic themes in Morrison’s novels remains largely unexplored. Born and raised in Lorain, Ohio, Morrison grew up surrounded by different faith traditions. Her mother belonged to the African Methodist Episcopal (AME) Church, …

Jerry Day, Daniel Holzmna

Student Theses

The life and times of California's oldest erotic bakery.

Enhancing Reliable Performance Of Microgrids With Autonomous Control Of Distributed Energy Resources, Sahand Liasi

All Dissertations

This dissertation presents a comprehensive investigation into enhancing the reliability, efficiency, and autonomous operation of modern power networks through advanced microgrid integration and control strategies. The research addresses critical challenges across three interconnected domains: microgrid control, thermodynamic modeling of heat recovery system (HRS), and optimal distribution network reliability.

In the realm of microgrid control, this work introduces novel methodologies for grid forming inverter-based resources (IBRs). A significant contribution is the development and validation of an "Auto Frequency Change" controller, which drastically reduces microgrid synchronization time with the main grid from several minutes to approximately four seconds, with theoretical potential for …