Digital Commons Network^™

Disruption Of Marine Habitats By Artificial Light At Night From Global Coastal Megacities, T. W. Davies, T. J. Smyth, A. E. Wright, A. Edwards-Jones, A Queiros, O. Rendon, S. Tidau, D. Mckee

School of Biological and Marine Sciences

Half of globally significant megacities are situated near the coast, exposing urban marine ecosystems to multiple stressors such as waste-water discharge containing a host of organic and inorganic pollutants, air and noise pollution. In addition to these well recognized sources, artificial light at night (ALAN) pollution is inseparable from cities but poorly quantified in marine ecosystems to date. We have developed a time- and wavelength-resolving hydrological optical model that includes solar (daylight and twilight components), lunar and ALAN source terms and propagates these spectrally through a tidally varying water column using Beer’s Law. Our model shows that for 8 globally …

Charting New Courses To Enter Foreign Markets: Conceptualization, Theoretical Framework, And Research Directions On Non-Traditional Entry Modes, Keith D. Brouthers, Liang Chen, Sali Li, Noman Shaheer

Research Collection Lee Kong Chian School Of Business

Recent advances in digitalization and increasing integration of international markets are paving the way for a new generation of firms to use non-traditional entry modes that are largely marginalized in previous entry mode studies. While extant research revolves around the level of resource commitment and control in foreign activities, non-traditional modes are encapsulated by the extent of embeddedness required for exploring new and/or exploiting existing resources. In particular, we draw attention to four such categories of non-traditional entry modes the literature has touched on, i.e., capital access, innovation outposts, virtual presence, and the managed ecosystem. We explore the key attributes, …

The Impact Of Subscription Programs On Customer Purchases, Raghu Iyengar, Young-Hoon Park, Qi Yu

Research Collection Lee Kong Chian School Of Business

Subscription programs have become increasingly popular among a wide variety of retailers and marketplace platforms. Subscription programs give members access to a set of exclusive benefits for a fixed fee upfront. In this paper, we examine the causal effect of a subscription program on customer behavior. To account for self-selection and identify the individual-level treatment effects, we combine a difference-in-differences approach with a generalized random forests procedure that matches each member of the subscription program with comparable non-members. We find subscription leads to a large increase in customer purchases. The effect of subscription is economically significant, persistent over time, and …

The Value Of Fiduciary Duties: Evidence From En Bloc Sales In Singapore, Jianfeng Hu, Kelvin F. K. Low, Wei Zhang

Research Collection Lee Kong Chian School Of Business

This paper examines the impact of fiduciary duties on collective asset sales in the case of owners acting as delegates for other owners, thereby potentially inducing conflicts of interests. Our identification strategy exploits a unique legal shock in Singapore, which established fiduciary duties in those transactions in the real estate market known colloquially as en bloc sales. The imposition of fiduciary duties caused the price premium of units sold via en bloc sales to increase over units ineligible for en bloc sale, as well as over units that, although eligible for en bloc sale, are sold individually. In addition, this …

Heat And Colonial Weather Science In The Straits Settlements C. 1820-1900, Fiona Williamson

Research Collection College of Integrative Studies

Historical explorations of tropical heat in a colonial context have largely focussed on two interconnected spheres: colonial perceptions of place and body or, the implications of heat on different bodies in medical thought and practice. This paper seeks to move the discussion towards a history of colonial scientific thought about heat as component of weather and of escalating nature-induced hazards, studied in the observatory or meteorological department. A central theme is to think about heat in its relationship to nascent meso-scale atmospheric knowledge, meteorological theory and, as a by-product of urbanisation and land-use change. In so doing, it conceptualises the …

The Evolution Of X-Ray Binaries And Their Accretion States, Lacey A. West

Graduate Theses and Dissertations

X-ray binary systems (XRBs) consist of a compact object component (e.g., black hole or neutron star) that accretes matter from a companion star. Although the extent to which XRBs contributed to the early heating of the intergalactic medium is still under investigation, it is estimated that XRBs dominated the X-ray radiation field before the reionization epoch. The study of XRB emission is therefore crucial to our understanding of the very early universe. Furthermore, studying the abundance and radial distribution of each XRB type within a galaxy can be revealing of the host galaxy’s local properties, structure, and evolution. XRB spectra …

Movie Reviews Sentiment Analysis Using Bert, Gibson Nkhata

Graduate Theses and Dissertations

Sentiment analysis (SA) or opinion mining is analysis of emotions and opinions from texts. It is one of the active research areas in Natural Language Processing (NLP). Various approaches have been deployed in the literature to address the problem. These techniques devise complex and sophisticated frameworks in order to attain optimal accuracy with their focus on polarity classification or binary classification. In this paper, we aim to fine-tune BERT in a simple but robust approach for movie reviews sentiment analysis to provide better accuracy than state-of-the-art (SOTA) methods. We start by conducting sentiment classification for every review, followed by computing …

Simulating Emergency Evacuation Response In An Auditorium Space, Anna Lee

Industrial Engineering Undergraduate Honors Theses

The successful execution of emergency evacuations is very important for the protection of the public. Some emergency events, such as fires, can occur with very little warning and turn into a dangerous situation in less than a minute. With high population densities, universities have increased risk involved with evacuations. One specific area that presents high risk is auditorium spaces such as lecture halls with high densities combined with added barriers such as tables and chairs. The ability to assess a building’s emergency preparedness is necessary for keeping the public safe. Simulation is a way to conduct a theoretical event and …

A Multi-Criteria Ranking System For Prioritizing Maintenance Of Levee Systems In Arkansas, Nguyen Danh Phan

Graduate Theses and Dissertations

There are 208,009 properties in Arkansas that have more than a 26% chance of being severely affected by flooding over the next 30 years, which represents 13% of all properties in the state. A levee system is designed to reduce the flooding risk for urban and rural communities; however, most of the state's levees have been significantly outdated or built with engineering standards less rigorous than current best practices. The Levee Safety Action Classification (LSAC), as recorded in the National Levee Database (NLD), communicates the risk associated with living behind a particular levee and assists local, state, and federal stakeholders …

Instance Segmentation-Based Depth Completion Using Sensor Fusion And Adaptive Clustering For Autonomous Vehicle Perception, Mohammad Z. El-Yabroudi

Dissertations

Depth sensing is critical for safe and accurate maneuvering in robotics and self-driving car (SDC) applications. Most recent LiDAR sensors, such as Ouster and Velodyne, offer 360 degrees of scanning at the rate of ten frames per second, making them very appropriate for autonomous driving applications. However, LiDAR point cloud data show many shortcomings, especially its data sparsity and unassigned nature, making it very challenging to utilize in applications such as perception, 3D object detection, 3D scene reconstruction, and simultaneous localization and mapping.

In this study, a novel framework using instance image segmentation and the raw LiDAR data for the …

A Framework For Assessing The 4th Rank Dispersivity Tensor Under Anisotropic Axial Symmetries, Xiang Fan

Dissertations

Multi-dimensional expansion of the advection-dispersion equation necessitated the representation of dispersivity as a 4th rank tensor. This tensorial form of dispersivity has 81 terms in three-dimensions with a maximum of 36 independent terms that may be used to describe Fickian spreading of a dissolved contaminant plume according to intrinsic properties of a porous medium. The complexity of the 4th rank tensor has led to the common practice of simplifying the tensor to only 2 or 3 independent terms by assuming isotropic conditions, although isotropic porous media are uncommon in nature as many natural geologic systems exhibit pronounced anisotropy. A broad …

Don’T Judge A Book By Its Covr: Learning And Training In Virtual Reality; The Effects Of Two Levels Of Immersion, Kendall Carmody, Meredith Carroll

Aeronautics Faculty Publications

Immersive devices, such as virtual reality (VR) devices are swiftly being integrated into military and civil operations as advanced tools for training, with studies observing the beneficial aspects of employing these devices for training cognitive skills (Xie et al., 2021). However, further research is needed to understand specific characteristics of the learning effectiveness of the technology and identify which levels of immersion benefit specific learning constructs in training. This study examined the effect of immersion on four constructs related to learning, including memory retention, learner engagement, learning performance in the form of knowledge acquisition, and perceived learning in a virtual …

Character Spotting And Autonomous Tagging: Offline Handwriting Recognition For Bangla, Korean And Other Alphabetic Scripts, Nishatul Majid, Elisa H. Barney Smith

Electrical and Computer Engineering Faculty Publications and Presentations

This paper demonstrates a framework for offline handwriting recognition using character spotting and autonomous tagging which works for any alphabetic script. Character spotting builds on the idea of object detection to find character elements in unsegmented word images. An autonomous tagging approach is introduced which automates the production of a character image training set by estimating character locations in a word based on typical character size. Although scripts can vary vividly from each other, our proposed approach provides a simple and powerful workflow for unconstrained offline recognition that should work for any alphabetic script with few adjustments. Here we demonstrate …

The Ward Round: Friend Or Foe In Postgraduate Training? A Grounded Theory Study Of Residents’ Perspectives, Mariam Noorani

Paediatrics and Child Health, East Africa

The ward round has traditionally been a learning activity in medical education. Apart from education, ward rounds have multiple roles including patient care and communication. Some studies have described the ward round as an ideal place to learn patient management while others reported that little learning happens on rounds due to lack of time and patient volume. This study aimed to develop a deeper understanding of ward round learning from the perspec-tive of postgraduate trainees. A constructivist grounded theory approach was used and data was collected during focus group discussions. Data were analyzed by initial coding, then grouped into focused …

Ispad Clinical Practice Consensus Guidelines 2022: Assessment And Management Of Hypoglycemia In Children And Adolescents With Diabetes, Mary B. Abraham, Beate Karges, Klemen Dovc, Diana Naranjo, Ana Maria Arbelaez, Joyce Mbogo, Ganesh Javelikar, Timothy W. Jones, Farid H. Mahmud

Paediatrics and Child Health, East Africa

No abstract provided.

Student And Teacher Perspectives On Asynchronous Learning During The Covid Pandemic, Michele Ehrhart

Education Doctorate Dissertations

The COVID Pandemic shut down schools across the country, leaving K-12 schools unprepared for virtual learning. In this mixed methods study, I examined data gathered from my 8th-grade science classes to assess the effectiveness of asynchronous instruction. My original research question was: How much if at all, did learning outcomes differ as a function of how the lessons were taught (uninterrupted instructional video versus interrupted/interactive Edpuzzle video)? Based on a preliminary examination of data, my study expanded into how self-regulated learning affected students’ comprehension, interest, and motivation. Study results showed no statistical differences in students’ comprehension based on how lessons …

Bridgewater Review, Vol. 40, No. 2, December 2022

Bridgewater Review

No abstract provided.

Perceived Quality Of Senior Care In An Assisted Living Facility Following The Outbreak Of Covid-19, Kaylie Hill

Theses/Capstones/Creative Projects

The COVID-19 pandemic has posed a monumental obstacle to the healthcare field in terms of severely reducing the number of healthcare workers. Among the many industries affected by staffing shortages are assisted living facilities (ALFs), in which residents are dependent on care staff for daily assistance. This study sought to investigate whether long-term residents of ALFs perceive a difference in the quality of their care under the circumstances of the pandemic as opposed to those of pre-pandemic times. Semi-structured interviews were facilitated with 10 long-term residents who have been residing in an Omaha ALF since prior to the outbreak of …

Philosophers Of Catastrophe: Early 20th Century Jewish Proponents And Opponents Of Objectivity In Science, Steven Gimbel, Stephen J. Stern

Philosophy Faculty Publications

The Second World War ended with the exposure of the Nazi death camps and the threat of global nuclear annihilation. The former disclosed the depths of human depravity and the latter warned us about the severity of the consequences that could await us as a result. The grimness of each, much less both, had the effect of shielding from our collective consciousness the equally dire warnings from the First World War that had occurred only a couple of decades earlier. [excerpt]

Workshops Report For Mesophotic And Deep Benthic Community Fish, Mobile Invertebrates, Sessile Invertebrates And Infauna, Rachel Bassett, Stacey L. Harter, Randy Clark, Ian Zink, Katherine Hornick, Jennifer Hart, Hanna Bliska, Melissa Carle, Tracey Sutton, Amanda Demopoulos, Andy David, Kristopher Benson, Jill Bourque, Martha Nizinski, Nancy Prouty, Stephanie Sharuga, Alicia Caporaso, Jennifer Le, Jennifer Herting, Cheryl Morrison, Matthew Poti

Marine & Environmental Sciences Faculty Reports

Two workshops with subject matter experts in the appropriate fields, were held in November and December 2021 to elicit guidance and feedback from the broader mesophotic and deep benthic scientific community. These workshops focused on best practices/approaches and identifying data gaps relative to habitat assessment and evaluation goals of the Mesophotic and Deep Benthic Community (MDBC) restoration portfolio. The first workshop was a combined effort of the Habitat Assessment and Evaluation (HAE) Project Team and the Deepwater Horizon (DWH) Program. Industrial Economics, Inc. (IEc) provided extensive workshop planning, organizing, execution, and facilitation support during all stages of the workshop. Based …

The Relationship Between Demographics And Early And Later Motor Problems In Children With Motor Difficulties, Promise Robinson

2022 Fall Honors Capstone Projects - Archive

A child’s achievement of motor milestones could result in later motor problems in children with Developmental Coordination Disorder (DCD). This study aimed to explore potential associations between early and later motor problems and demographic characteristics (such as race/ethnicity) in children with DCD. One hundred and thirteen parents/caregivers of children aged between 5 to 18 years with motor difficulties were asked to answer an online survey about early motor milestones, demographics, and current motor problems of children. The proper distribution for minority groups could not be found due to the sample being self-selected, however the focus was shifted to the achievement …

Longing For Cedar: Tracing Indigenous Family In The Pacific Northwest From Longhouses To Urban Sprawl And Bureaucratic Command, Darcy Gray

2022 Fall Honors Capstone Projects - Archive

The Coast Salish are a network of related Indigenous peoples in the Pacific Northwest. Their lifestyles have been challenged by Euroamericans for generations. Using archival sources from the Bureau of Indian Affairs and primary photographic sources, this study focuses on how domestic life changed for Coast Salish people across the nineteenth and early twentieth centuries. I explore pre-colonial settlements and longhouses, interracial marriages during colonization, and boarding schools for Indigenous children after U.S. power solidified. The transformation of Coast Salish life induced by oppressive power structures illustrates the vital role of family ties in the origins and evolution of Coast …

Pupillometry Reveals Insight Into Metacognitive Processes During Encoding, Britney Le

2022 Fall Honors Capstone Projects - Archive

Metacognitions are the processes associated with how well we learn and monitor our study behavior. This can be assessed with judgments of learning (JOLs) during encoding of cue-target word pairs (e.g., dog – bowl), which are predictions on how confident we are that we will remember the target (e.g., bowl) when later presented with the cue (e.g., dog) at retrieval. The easily learned easily remembered (ELER) heuristic states that the easier it is to learn something, the easier it is to be remembered later. However, recent studies using eye tracking show that more effortful encoding, as indexed by larger pupil …

Algebraic Reasoning And Conceptual Understanding: A Mixed Methods Comparison Of In-Person And Virtual Classroom Strategies, Erneice J. Jackson

Dissertations

Algebraic reasoning is the beginning school of thought to critical thinking. Employers are looking for this 21st century skill. The purpose of this research was to investigate equity in mathematics education using the NCTM Teaching and Learnings Beliefs Survey. Four area were studied: the number of years in education, the degree earned, the grade level taught in education, and the number of years in an educator’s teaching position. A mixed methods inventory was used. Most results were not rejected in this study. Two statements in the survey warranted a discussion. Recommendations were made for further research.

Full Issue, Palara Guest Editors

PALARA: Publication of the Afro-Latin/American Research Association

No abstract provided.

A Snapshot Of Statelessness In The Western Hemisphere: Denationalization In Modern Day Dominican Republic, Javiela Evangelista

PALARA: Publication of the Afro-Latin/American Research Association

In 2013, the Dominican Republic’s Constitutional Tribunal ruling 168/13 retroactively revoked the citizenship of over 200,000 Dominican nationals of Haitian descent, thus creating the fifth largest stateless population in the world and the largest in the Western Hemisphere today (IACHR 2015). The ruling simply made legal the longstanding, racialized and clandestine practice of converting Haitian descendant Dominican citizens into foreigners. The ruling, as well as the laws that precede it, demonstrate how anti-blackness and racialization are processes through which citizenship is measured and mobilized to reorder society and formalize hierarchies. Dominicans of Haitian descent who are stateless are habitually denied …

Investigating The Frictional Properties Of Organic Matter And Pore Structure Of Organic-Rich Shales With Atomic Force Microscopy And Scanning Electron Microscopy, Farnood Sobhbidari

Earth & Environmental Sciences Dissertations - Archive

Understanding geomechanical properties of shales, such as stiffness properties and fracture toughness, is important in different areas of petroleum industry-related activities including fracturing efficiency, petroleum flow to the wellbores, and induced seismicity. Nanoscale to microscale experiments on shale samples require a much smaller sample compared to macroscale experiments. This is a major advantage because irregularly-shaped drill cuttings from shales can be used for experimental analyses, such as nanoindentation or atomic force microscopy (AFM). However, a characterization of mechanical properties at the nano- to micro-scale is a relatively new addition to classical geomechanical experiments on shales, and there is still lack …

Pedagogical Uses For Machine Translation: Korean L2 Writing, Manali Khandekar

2022 Fall Honors Capstone Projects - Archive

Korean is a particularly challenging language for English speakers due to its typological distance from English, and as such, learning Korean typically requires hundreds or thousands of additional hours of instruction to reach intermediate and advanced levels. One solution that this study analyzes is the use of a rapidly improving technology: machine translation (MT). Participants were tasked with producing a short composition in Korean and then trained to use MT-based strategies to improve their writing; they also completed pre- and post-surveys to gauge their attitudes toward machine translation. Results showed improvement in vocabulary choice and grammar as well as case/locative …

Exploring The Scp Wiki: Community, Digital Horror, And Apocalyptic Fiction, Justin M. Jones

English Theses - Archive

The SCP is a body of user-submitted fiction broadly classified as horror and often compared to other user-submitted horror such as Creepypasta. While these comparisons have been made in research and among the SCP community, the SCP seems to function differently than other such sites. Very little research has been done on the SCP and what exists examines it as a work of horror and as an example of emerging online folklore. This thesis further expands upon this research by examining how the unique community participating on the SCP Wiki shapes the text, how the SCP is not just a …

The College Admissions Process For Returning Citizens And Ex-Offenders At A Small, Private Midwestern College, Donna Bradley

Dissertations

It is well-known that higher education faces the challenge of declining enrollment, particularly post-COVID. However, there is a population of students that higher education institutions may overlook, returning citizens and ex-offenders. Reintegration is a challenging endeavor for returning citizens and ex-offenders, without regard to the length of incarceration or the circumstances surrounding system-involvement. They face barriers and stigmatization while attempting to achieve some sense of normalization post-incarceration, including the pursuit of higher education. Using mixed methodology, specifically a qualitative case study and descriptive statistics, the extant research examined the college admission process for returning citizens and ex-offenders through the lens …