Digital Commons Network^™

The Influence Of Composition On Porosity And Strength In Planetary Analog Saline Ices, Tara C. Tomlinson

Dartmouth College Ph.D Dissertations

This thesis investigates how composition influences the physical structure and mechanical behavior of saline ice, with implications for both terrestrial sea ice and the ice shells of ocean worlds such as Europa and Enceladus. This is done through a multi-pronged approach of both numerical modeling and laboratory experiments. Modeling results re- veal that small-scale parameter variations in porosity, permeability, and permeability fac- tor may produce large discrepancies when extrapolated to planetary scales, underscoring the need for improved experimental constraints on pore connectivity and thermochemical conditions. Laboratory analyses show that while total porosity is relatively uniform with depth, it varies strongly …

The Legal Framework For Direct Ocean Carbon Capture And Storage (Volume 2: The United States), Korey Silverman-Roati, Romany M. Webb

Sabin Center for Climate Change Law

This paper, the second in a series of two, focuses on the U.S. legal framework for the marine carbon dioxide removal (mCDR) approach of direct ocean carbon capture and storage (DOCCS). The first explores DOCCS governance under international law and is available here: https://scholarship.law.columbia.edu/sabin_climate_change/271/.

DOCCS aims to remove some of the carbon currently stored in the ocean and thereby enable it to uptake additional carbon dioxide from the atmosphere. DOCCS is still undergoing research, but early studies suggest it could have significant carbon dioxide removal potential. However, DOCCS could also present environmental and other risks, including from the construction …

Technology-Supported Literacy Instruction In Elementary Classrooms (K-5): Perspectives Of Student Teachers In Western Kentucky, Ila B. Shirrell

Honors College Theses

The use of technology in elementary classrooms (kindergarten–fifth grade) has increased significantly with the goal of enhancing instruction. Additionally, educational technology is being used to improve literacy skills, reading recovery, and comprehension. This study examined how technology supports literacy development and instruction in elementary classrooms by drawing upon the perspectives of current student teachers. Student teachers from Murray State University, placed in third through fifth grade classrooms in Western Kentucky, were interviewed. The interviews assessed how technology was used for literacy instruction, including the extent of its effectiveness and potential challenges. Responses were transcribed and analyzed. The themes of evidence-based …

Algorithmic Resilience Memory: Designing Agentic Ai Systems For Organizational Learning And Climate-Crisis Adaptation, Harsha Sammangi, Aditya Jagatha, Navyasri Maddukuri

Research & Publications

Climate disruption has become a persistent organizational condition rather than an episodic event, yet most information systems designed to support organizational resilience treat each disruption as an isolated incident. Existing digital resilience platforms, disaster recovery systems, and AI-driven decision support tools lack the capacity to accumulate, encode, and reuse organizational knowledge across successive climate-related crises. This paper introduces Algorithmic Resilience Memory (ARM), a novel IS construct defined as an AI-enabled organizational capability through which agentic AI systems sense climate-related disruptions, encode prior organizational responses, preserve decision rationale, generate contextually adaptive recommendations, and reconfigure future actions through structured outcome feedback. Drawing …

The Downside Of Generosity: How Rare Giving Fosters Stronger Social Connection, Minkwang Jang, Shereen J Chaudhry, Ayelet Fishbach

Research Collection Lee Kong Chian School Of Business

Giving serves not only to benefit others and society but also to foster social connections between givers and recipients. However, more giving is not necessarily merrier. This research finds that social connection depends not only on the act of giving but also on how many others receive the gesture from the same giver. Rare givers—those who give to fewer recipients—are perceived as more socially connected to each recipient than broad givers—those who give to many (the rare giving effect). This effect emerges across diverse contexts, including interpersonal gift exchanges in both new and existing relationships and corporate donations. As a …

Characterizing Metabolic Flux Of Plant Secondary Metabolites From Diverse Animal-Source Foods To Humans, Muhammad Ahsin

All Graduate Theses and Dissertations, Fall 2023 to Present

There is a popular saying: “You are what you eat.” But does this also mean, “You are what your food eats”? This dissertation explores that question by examining how farming practices shape the nutritional quality of meat—and what, if anything, those differences mean for the people who consume it. While modern livestock production and nutrition research often emphasize protein and fat, this work tests the idea that animals function as biological mediators, linking soil and plant conditions to human diets through the chemical composition of meat and milk. To evaluate this hypothesis, we tracked health-relevant plant compounds— phytonutrients—across the soil–plant–animal–human …

Longing For Home, Ryker Eggenberger

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis is a collection of creative nonfiction essays examining what it means to belong. Multiple factors of belonging are explored, including belonging in human relationships, belonging to oneself, and feeling a sense of belonging to a physical place. Each essay contains three cohesive narratives—called “strands”—which are woven together to form a single essay. These strands include the author’s personal experiences, site visits conducted by the author, and various research topics. The personal experiences explore the author’s relationship to belonging contextualized by his pure obsessive-compulsive disorder. The site visits recount the author’s experiences in natural and community-oriented places. The research …

A Survey On Digital Reading Materials And Personal Study Of Christian Religious Texts, Teancum Price

All Graduate Theses and Dissertations, Fall 2023 to Present

Religion, including reading from religious texts such as scriptures, are a part of the daily lives of many people. Modern technology has influenced the way that this religious reading takes place, but its effects have not yet been studied. Existing research of the effects of technology on reading focus on topics such as reading comprehension, but the study of religious texts is often focused on achieving a religious experience, so the existing research does not capture the whole scope of these changes. In our study, we surveyed two universities (Utah State University and Abilene Christian University) to ask individuals how …

Comparison Of Consumptive Use Of Furrow And Drip Irrigated Onions, Chad C. Withers

All Graduate Theses and Dissertations, Fall 2023 to Present

The State of Utah funded agricultural water optimization studies to determine how agricultural water depletion can be decreased while maintaining or improving yields. Conversion from surface irrigation to drip irrigation is investigated as a method to decrease consumptive use.

Some Utah onion producers are converting from furrow irrigation to drip irrigation to decrease water and fertilizer use and improve profits. This study compares the consumptive use and yield of three drip irrigated onion fields against the consumptive use and yield of three furrow irrigated onion fields.

Arrays of soil moisture sensors at various depths were placed in drip and furrow …

Are We Still Bowling Alone – Part I: Religious Communities, Nancy T. Ammerman

eJournal of Public Affairs

Editor’s note. The following is based on a panel session from the 2024 Public Affairs Conference, presented by Nancy Ammerman, Harry Bruinius, and Kenneth Woodward. The panel was a reflection on what has happened since authors Robert Putnam and Robert Bellah issued warnings on the decline of community in America.

Are We Still Bowling Alone – Part Ii: Lost In Culture, Harry Bruinius

eJournal of Public Affairs

Editor’s note. The following is based on a panel session from the 2024 Public Affairs Conference, presented by Nancy Ammerman, Harry Bruinius, and Kenneth Woodward. The panel was a reflection on what has happened since authors Robert Putnam and Robert Bellah issued warnings on the decline of community in America.

The Spiritual Crisis In American Higher Education, Varun Soni

eJournal of Public Affairs

Editor’s note. The following is transcribed from a presentation by Varun Soni during the 2024 Public Affairs Conference at Missouri State University.

Accessibility On Campus: How Universal Design Can Make A Difference, Samantha Wittenberg

Honors Projects

This research is meant to showcase how survey those who self-identify as having a disability so see how feedback they provide can help guide changes to make to the Maurer Center on Bowling Green State University’s campus. By utilizing principles found in Universal Design, much of the feedback was able to be applied. Much of what was found are small modifications to help with general accessibility such as visualization to help with navigation.

Odor Vs. Direction Prioritization In Shelter Navigation By The Whip Spider Phrynus Marginemaculatus, Aiden Barno, Daniel D. Wiegmann, Verner Peter Bingman, Sidney Tyler Ley

Honors Projects

Arthropod navigation is known to rely on a variety of multisensory strategies, yet the prioritization of these cues in whip spiders remains poorly understood. This study examined whether Phrynus marginemaculatus prioritizes olfactory cues or idioethic directional cues when the two cues directly conflict with one another. Twelve subjects were trained to associate a shelter with both a specific odor (geraniol or 1‑hexanol) and a consistent directional movement (left or right) from the release site. In a subsequent test trial, odor and direction were dissociated, and subjects’ time spent in front of each shelter was used to determine an association index …

School Levy Passage Strategies, Brody Schaad

Honors Projects

This research was conducted on the impact of community support on school levies, strategies that impact levy passage, and the impact of levies on student success. Research was done through interviews with K-12 superintendents from various Ohio public school districts, following a review of the current literature available on this topic. It was found that transparency with voters of details such as use of funds and outcomes of levy success is the most important strategy to increase levy passage rate. The increased transparency leads to voters having trust in the district and a better understanding of repercussions, leading to a …

Comparative Risk Metrics For U.S. Commercial Aviation, May 2026, Mihhail Berezovski

BCAAS Reports

No abstract provided.

May 2026, Office Of Research

Research Update

No abstract provided.

A Comparison Of Treadmill Preferred Walking Speed Assessments: Reliability Of Common Protocols And The Novel Treadpws Test, Kirsty A. Mcdonald, Ella Li, John Kerr, Jessica C. Selinger, Kimberley S. Van Schooten

Research outputs 2022 to 2026

Background: Human locomotion studies often require participants to self-select a preferred walking speed (PWS), yet there is no consensus or standard protocol for determining this speed. We developed a new protocol to determine PWS (TreadPWS Test). Research question: We compared the TreadPWS Test to three other common protocols in the literature (Dingwell PWS Test, Jordan PWS Test, Dal PWS Test) across a range of reliability and implementation metrics. Methods: Healthy participants (N = 20) attended two sessions within a seven-day period, during which a PWS was determined using each protocol. One test (Dal PWS Test) was conducted overground, and the …

A Generative Ai Method For Minority Class Handling In Anomaly Detection With Drift And Explainability Analysis, Kelvin J. Mwiga, Mussa A. Dida, Ahmad Mohsin, Iqbal H. Sarker

Research outputs 2022 to 2026

Artificial Intelligence, particularly machine learning (ML) algorithms, plays a crucial role in detecting cyberattacks, including anomalies and intrusions. However, machine learning models trained on imbalanced cybersecurity datasets often struggle to accurately detect minority data instances and potential threats, thereby weakening overall system security. Despite extensive research, a persistent challenge is the inadequate explanation for model predictions concerning minority data classes. This study aims to address these limitations by developing a generative AI-based approach to manage minority classes in anomaly detection, incorporating concept drift handling and explainability analysis. We introduce an over-sampling technique, CGGReaT, designed to enhance the presence of minority …

Cities And Climate Change, Matthias Roth, Enric Aguilar, Winston T. L. Chow

Research Collection College of Integrative Studies

We are pleased to present this special virtual collection of articles, highlighting the multifaceted interactions between cities, local climates, and global anthropogenic climate change. Climate change and urbanisation are the two global megatrends that transform human life and, at the same time, directly impact each other. Urban areas have the highest density of human populations and experience altered atmospheric conditions due to anthropogenic modification of natural physical settings and extra emissions of air pollutants and trace gases. One of the most obvious examples of climate modification due to humans is the urban heat island (UHI). This phenomenon describes urban regions, …

Miserly Thinking: Understanding The Factors Shaping Public Support Towards Project Wolbachia In Singapore, Shirley S. Ho, Agnes S. F. Chuah, Fiona J. W. Goh, Nova Mengxia Huang, Mengxue Qu, Hye Kyung Kim, Sonny Rosenthal

Research Collection College of Integrative Studies

Project Wolbachia is a vector control method that releases male Wolbachia-infected Aedes mosquitoes to curb dengue transmission in Singapore. While research has primarily focused on its efficacy, few studies have examined public opinion. This study draws upon the cognitive miser model and scientific literacy model to examine the factors shaping public support for Project Wolbachia. A nationally representative door-to-door survey was conducted in Singapore (N = 1,000) using multi-stage stratified random sampling. Our findings revealed that while knowledge about Project Wolbachia explains public support, laypeople may often rely on cognitive shortcuts, such as value predispositions, media attention, and pre-existing perceptions, …

Public Pool Usage As Adaptation Against Urban Heat, Stefan Borsky, Eric Fesselmeyer

Research Collection College of Integrative Studies

This paper examines the relationship between urban heat and outdoor public pool usage. Using attendance data from all 53 outdoor public pools in New York City, we analyze nonlinear effects of heat on pool usage across socioeconomic contexts. Pool attendance rises sharply with heat, especially in low-income neighborhoods where alternative coping options are likely limited. We also find that public pools reduce heat-related emergency medical service calls. Our findings highlight the need for equitable investment in blue infrastructure to enhance urban climate resilience and demonstrate how this type of adaptive infrastructure can play a critical role in managing urban heat.

Walking The Thermal Landscape: Modeling Ecophysiological Responses Of Ecotherms To Marine Heatwaves, Andrew Robert Villeneuve

Doctoral Dissertations

Climate change is accelerating the frequency of extreme heat events in the world’s oceans. These heatwaves can pose critical challenges for marine organisms, especially ectotherm foundation species who have experienced increasingly frequent and severe mass mortality events (MMEs). Predicting when, where, and to what extent populations experience heat-induced mortality is a critical knowledge gap in our ability to anticipate, mitigate, and recover from catastrophic MMEs. Here, I test the application of physiological nonlinear thermal tolerance landscapes (TTLs) and dynamic tolerance algorithms to translate dynamic heatwave events into ectotherm mortality predictions. In chapter 2, I conducted a simulation exploration of how …

Dignity And The Free Press, Erin C. Carroll

Georgetown Law Faculty Publications and Other Works

As American institutions wither and die, those who believe in their importance must reflect and rebuild. One institution worthy of sustained attention is the free press. Divorced from government by design, the press can benefit from efforts to reinvigorate and reinvent it in ways that institutions more directly under the federal government’s thumb cannot. To best undertake these efforts, we need a richer understanding of why a free press is vital. Articulating the values that underlie the need for this institution is necessary not only to build the most robust free press, but also to best exercise our freedoms as …

Consensus Guidelines On Inferior Petrosal Sinus Sampling: A Guideline From The Society Of Vascular And Interventional Neurology Guidelines And Practice Standards Committee, Farhan Siddiq, Hunter Brooks, Esra Demirtas, Ibrahim Ahmad Bhatti, Sami Al Kasab, Adam De Havenon, Robin Novakovic, Ossama Y. Mansour, Cynthia L. Kenmuir, Ameer E. Hassan

School of Medicine Publications

Background: Bilateral inferior petrosal sinus sampling (BIPSS) is the gold-standard test to distinguish Cushing disease (CD) from ectopic adrenocorticotropic hormone (ACTH) secretion when biochemistry confirms ACTH-dependent Cushing syndrome and pituitary magnetic resonance imaging is equivocal. However, practice varies widely between centers, leading to false negatives, misinterpretation, sampling errors, and avoidable risk. Neurointerventionalists performing BIPSS have lacked dedicated, procedure-focused guidance.

Methods: Using the Society of Vascular and Interventional Neurology Guidelines and Practice Standards framework, a multidisciplinary panel (endocrinology, interventional neuroradiology, and endovascular neurosurgery) performed a systematic review through August 2025 and developed recommendations graded by class of recommendation and level of …

Functional Heterogeneity In Trophoblast Stem Cells Derived From Recurrent Pregnancy Loss Products Of Conception., Qi Fu, Keisuke Kozai, Xingrao Ke, Joe Varberg, Sheng Xia, Ashley S. Howard, Michael Lydic, Kristin Holoch, Courtney Marsh, Elin Grundberg, Kaela Varberg

Manuscripts, Articles, Book Chapters and Other Papers

Recurrent pregnancy loss (RPL), defined as two or more consecutive miscarriages, affects 1-5% of couples attempting to conceive and most frequently occurs between 6 and 8 weeks of gestation, coinciding with critical stages of placental development. Despite this temporal association, placental contributions to RPL pathogenesis remain poorly understood. We hypothesized that trophoblast lineage development, including extravillous trophoblast (EVT) and syncytiotrophoblast (STB) differentiation, are disrupted in RPL. To test this hypothesis, we established and functionally characterized human trophoblast stem (TS) cell lines derived from products of conception (POC) obtained from consenting idiopathic RPL cases. Four TS cell lines were successfully derived …

Accelerated Weaning Of Opioids To Reduce Pharmacologic Exposure For Neonatal Opioid Withdrawal Syndrome: A Randomized Clinical Trial., Abbot R. Laptook, Adam Czynski, Rouba Chahine, Rachel G. Greenberg, P Brian Smith, Erica Oliveira, Jenna Gabrio, Barry Eggleston, Abhik Das, Jeannette Lee, Barry Lester, Dave Clark, Michele Walsh, Helen Ko, Clare Campbell Asher, Hayley Friedman, Samuel Gentle, Karishma Rao, Anup Katheria, Kristen Benninger, Sanket Jani, Mark Cody Smith, Akram Khan, Ajay Talati, Shaina Lodhi, Fernando Mena, Amanda England, Prabhu Parimi, Ranjit Kylat, Heidi Harmon, Javed Mannan, Meghan P. Howell, Tanner Wright, Jessica Snowden, Act Now Collaborative

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: To determine if newborns receiving morphine or methadone as the primary pharmacologic treatment for neonatal opioid withdrawal syndrome (NOWS) tolerate and receive fewer days of opioid using an accelerated wean protocol (15% decrements) compared with using a slower wean protocol (10% decrements).

STUDY DESIGN: Newborns ≥36 weeks of gestation receiving morphine or methadone for NOWS were enrolled in a pragmatic blinded, randomized multicenter trial. Newborns underwent protocol-driven weaning with decreasing opioid doses of either 15% or 10% decrements. Weaning was encouraged every 24 hours, and if signs of NOWS worsened, the preceding dose was resumed. To maintain blinding, the …

Optimisation Of Photosensitive Recording Materials For Broadband Holographic Optical Elements, Michael Murray

Doctoral

The introduction of broadband (white) LED outdoor lighting has led to significant energy savings. However, this has come at the cost of increased light pollution which has negative impacts both on ecological systems and human health. This light pollution is largely the result of the lack of control measures for the directionality of the light emitted by outdoor LED lighting. The lack of directionality also results in higher energy consumption in order to compensate for the light scattered to the atmosphere and sufficiently illuminate the target area. In this thesis holographic optical elements (HOEs) are proposed as a complementary technology …

Analisis Faktor-Faktor Yang Mempengaruhi Angka Kematian Bayi Di Provinsi Sulawesi Selatan Menggunakan Regresi Komponen Utama, Salwa Zahirah Putri Wijaya, Sitti Sahriman Salam, Nasrah Sirajang, Audia Putri Damatia, Hildayanti Hildayanti

Jurnal Biostatistik, Kependudukan, dan Informatika Kesehatan

Angka kematian bayi (AKB), khususnya kematian neonatal, merupakan indikator fundamental dalam menilai kualitas pelayanan kesehatan dan kesejahteraan masyarakat. Penelitian ini dilakukan untuk menganalisis faktor-faktor yang memengaruhi AKB di 24 kabupaten/kota di Provinsi Sulawesi Selatan. Variabel independen yang dikaji mencakup dimensi layanan kesehatan, kondisi sosial ekonomi, pendidikan perempuan, sanitasi, air bersih, dan indikator demografis. Data dianalisis menggunakan metode Regresi Komponen Utama (Principal Component Regression/PCR) untuk menganalisis pengaruh variabel-variabel dengan mempertimbangkan adanya potensi korelasi antar variabel independen, sehingga dihasilkan model yang stabil. Melalui analisis komponen utama, lima komponen berhasil dibentuk yang merepresentasikan 84,21% dari total variasi data. Komponen pertama (PC1) …

Rethinking Covid-19 Tourism Recovery, Anestis Fotiadis, Efstathios Polyzos, Tzung Cheng Huan

All Works

No abstract provided.