Digital Commons Network^™

Implementation And Evaluation Of Ai-Based Citizen Question-Answer Recommender (Acqar) To Enhance Citizen Service Delivery In Singapore Public Sector: A Case Study, Hui Shan Lee

Dissertations and Theses Collection (Open Access)

Government agencies prioritize citizen service delivery to foster trust with the public. Technological advancements, particularly in Artificial Intelligence (AI), hold promise for improving service provision and aligning government operations with citizens' needs. Yet the inherent inflexibility of Service Level Agreements (SLAs) often overlooks the nuances of human emotions and the varied nature of citizen inquiries, exacerbated by a lack of tools to guide appropriate responses. This dissertation aims to address the gaps of overlook of human emotions and non-support for appropriate responses, by exploring the following questions: (1) Can a predictive model incorporating both numeric and textual data effectively forecast …

Can Organizational Focus On Responsible Ai Lead To Improved Ai Adoption By Employees?, Seema Chokshi

Dissertations and Theses Collection (Open Access)

The duality inherent in Artificial Intelligence technology entails that while AI has the potential to bring about transformative benefits to organizations, unintended consequences of AI applications could lead to biased and discriminatory outcomes, which could have negative consequences for the organization and society in general. Concerns about such unintended consequences are an impediment to AI adoption where unwilling employees and practitioners often fear ethical breaches, thereby, negatively impacting their engagement with AI driven applications. In response to these concerns various organizations and regulatory bodies have developed governing frameworks broadly known as Responsible AI standards, that set guidelines to design, …

Loose Purse Strings, Loose Cultures: How Resource Increase Affects Cultural Tightness-Looseness And Creativity In Large And Small Organizations, Caleb Chun Kwan Chu

Dissertations and Theses Collection (Open Access)

For over a decade, cultural tightness-looseness (TL) has established itself as a culture construct that is useful in diverse contexts at multiple levels. While most TL research has focused on TL consequences, less attention has been paid to TL antecedents. This dissertation proposes resource increase as a TL predictor and uses a resource-based perspective to review and extend extant TL literature. I empirically examine the effect of resource increase on incremental and radical creativity as mediated by TL at the team level. I also explore the moderating effect of organizational size on these team-level relationships. The data were drawn from …

How Does The Captain Guide The Brightest Stars? The Effect Of Leadership Styles On Star's Work Performance, Jen-Tsung Chen

Dissertations and Theses Collection (Open Access)

This study aims to investigate the effect of leadership styles on the work performance of star talents. As star talents play more and more critical roles in the sustainable development of enterprise, how to effectively manage star talents’ sustaining growth becomes a crucial issue for organizations. The questionnaire survey is conducted to explore how different leadership styles influence the work performance of star talents. How leader-member exchange mediates the relationship between leadership styles and star talents’ work performance, and how star talents’ annual income moderates the relationship between leadership and star talents’ work performance. A total number of qualified 149 …

Sequential Recommendation: From Representation Learning To Reasoning, Lei Wang

Dissertations and Theses Collection (Open Access)

The recommender system is a crucial component of today's online services. It helps users navigate through an overwhelmingly large number of items and discovering those that interest them. Unlike general recommender systems, which recommend items based on the user's overall preferences, sequential recommender systems consider the order of user-item interactions. Sequential recommendations aim to predict the next item a user will interact with, given a sequence of previously interacted items, while considering the short-term and long-term dependencies among items.

In this thesis, we focus on sequential recommendation methods: from representation learning to large language model (LLM)-based reasoning. On the one …

The Relationship Between Medical Equipment Management Outsourcing And Performance, Sheng Bian

Dissertations and Theses Collection (Open Access)

Medical equipment, as a core component of a hospital’s fixed assets, provides essential support and assurance for the hospital to deliver medical services and enhance competitiveness. The operation of public hospitals in China is a top priority for deepening medical reforms. As hospitals transition from focusing on revenue to centering on costs, comprehensive management of medical equipment becomes a critical aspect of hospital operation management. In the scenario of utilizing the management service outsourcing mode for comprehensive management of medical equipment, equipment performance naturally becomes a topic of special interest in the industry.

Given this, this study aims to investigate …

Editorial For Special Issue “Design, Modeling, Optimization And Control Of Flotation Process”, Fardis Nakhaei, Ahmad Hassanzadeh, Luis A. Cisternas

Mining Engineering Faculty Research & Creative Works

No abstract provided.

Editorial For Special Issue “Design, Modeling, Optimization And Control Of Flotation Process”, Fardis Nakhaei, Ahmad Hassanzadeh, Luis A. Cisternas

Mining Engineering Faculty Research & Creative Works

No abstract provided.

Surgical Navigation In Image-Guided Transoral Robotic Surgery, Yuan Shi

Dartmouth College Ph.D Dissertations

Transoral robotic surgery (TORS) is a minimally invasive approach in treating head and neck cancers and has demonstrated improved surgical outcomes with reduced morbidity when compared to traditional open surgery. However, the lack of haptic feedback makes it more difficult to assess the tumor extent and locate critical structures (e.g., artery and nerves). In standard-of-care TORS, preoperative imaging is used as guidance; however, it becomes inaccurate intraoperatively: the patient’s neck is hyper-extended, surgical instruments are introduced, and soft tissues deform significantly. As a result, the surgeon is required to mentally predict intraoperative deformation, which can lead to bleeding complications and …

Formation Of New Cohesive Linkages And Regulation Of Cohesion Rejuvenation During Meiotic Prophase In Drosophila Oocytes, Muhammad Abdul Haseeb

Dartmouth College Ph.D Dissertations

During meiosis, faithful segregation of chromosomes requires maintenance of sister chromatid cohesion from premeiotic S phase until its stepwise dissolution at anaphase I and anaphase II. Research in humans and model organisms indicates that premature loss of meiotic cohesion is a major determinant of age-induced aneuploidy in human oocytes, a phenomenon known as the maternal age effect. Because cohesin turnover after S phase has not been detected in mice oocytes, the prevailing model for mammalian oocytes is that cohesion cannot be replenished after its initial establishment in S phase. However, previous research from the Bickel lab suggested that a cohesion …

Increasing The Phytoremediation Efficiency Of Heavy Metal-Contaminated Soils In The Uae Using Endophytic Actinobacteria For Sustainable Agriculture, Archana Mathew Mathai

Theses

Pollution caused by heavy metals (HMs) is a major environmental concern worldwide. Human actions, agriculture practices and industrial activities can cause the release of HMs into the environment. Soil contamination with HMs may have negative effects on crops, thus disrupting the food chain and posing risks to human health. Lead (Pb) is a common pollutant found in the soil when at high concentrations. Conventional land remediation techniques depending on chemical and mechanical methods are quite expensive and would lead to long-term deterioration of the ecosystems, while phytoremediation can serve as an alternative, eco-friendly approach to restore the lands for agricultural …

Housing Markets Since Shapley And Scarf, Mustafa Oguz Afacan, Gaoji Hu, Jiangtao Li

Research Collection School Of Economics

Shapley and Scarf (1974) appeared in the first issue of the Journal of Mathematical Economics, and is one of the journal’s most impactful publications. As we approach the remarkable milestone of the journal’s 50th anniversary (1974–2024), this article serves as a commemorative exploration of Shapley and Scarf (1974) and the extensive body of literature that follows it.

Indoor Air Quality And Ventilation Energy In University Classrooms: Simplified Model To Predict Trade-Offs And Synergies, Farah Shoukry, Rana Raafat, Khaled Tarabieh, Sherif Goubran

Faculty Journal Articles

Students and educators spend significant time in learning spaces on university campuses. Energy efficiency has become a concern among facility managers, given the need to maintain acceptable indoor air quality (IAQ) levels during and after the COVID-19 pandemic. This paper investigates the relationship between control and extraneous variables in a university classroom’s total mechanical ventilation (kWh). The model is built using Grasshopper software on Rhino Version 7. Our methodology encompasses (1) an extensive review of recent trends for studying IAQ and energy, (2) selecting parameters for simulation, (3) model configuration on Grasshopper, and finally, (4) a formulation of a pertinent …

One Hand Doesn't Clap: The Moderation Of Individual Factors On The Relationship Between Leader Narcissism And Followers' Outcomes, Wafa Mohammed Al Wahedi

Dissertations

Drawing on leadership and social exchange theories, the purpose of this study is to examine the adverse impact of the toxic triangle; namely, Leader Narcissism (LN), Perceived Unethical Climate (PUC) and Followers' Submissiveness (FS) on followers' outcomes, particularly Psychological Capital (PsyCap) and Constructive Deviance (CD) through the mediation of Leader-Member Exchange (LMX). The study introduces Moral Identity (MI) as a moderator. The conceptual framework was put to the test with data collected from both leaders and their followers in UAE-based organizations. Hierarchical linear model analysis was run on leaders and followers' dyadic data for testing whether moral identity moderated the …

Maneuverability Of Cuttlefish And Squid: An Integrated Kinematic And Hydrodynamic Analysis, Alissa Marie Ganley

Biological Sciences Theses & Dissertations

Turning is important for life underwater, playing roles in predator avoidance, prey capture, locomotion, and communication. While turning abilities have been explored in many taxa, little is known about maneuverability of cephalopods, such as cuttlefishes and squids. The objectives of this dissertation include: (1) quantifying the turning abilities of cuttlefish hatchlings and determining whether there are species-specific differences; (2) examining the turning capabilities of adult cuttlefishes, with the goal of comparing adult performance with that of conspecific hatchlings; and (3) quantifying how adult neritic squids perform turns to provide a broader context of maneuvering strategies in cephalopods. To investigate turning, …

Compassionate Communication, Social Support, And Safety: Needs Of People Experiencing Homelessness, Emma Lynn Jackson

Communication & Theatre Arts Theses

On any given night in 2023, approximately 650,000 people were experiencing homelessness (HUD, 2023). With the highest rate of homelessness since national reporting began in 2007 and double the rate of chronic homelessness since 2016, it could be inferred that the resources are not effectively mitigating the problem (HUD, 2023). To attempt to understand this complex issue, this thesis initially reviewed theories on societal structures, personal connections, social support, and gaps in support. In person interviews of 14 people living with homelessness explored perceptions of support, social challenges, involvement in the community and lack of support. Following each interview, a …

Physical Educators’ Self-Efficacy To Teach Students With Disabilities Across Instructional Placements, Lindsey Ann Nowland

Human Movement Studies & Special Education Theses & Dissertations

Although there are several well used self-efficacy instruments designed to measure PE teachers’ self-efficacy to teach students with disabilities, limitations to these scales exits, such as a narrow focus on integrated instructional placements and an absence of theoretically relevant sources of self-efficacy information built within the scales. These limitations translate to a significant gap in the literature between measuring PE teachers’ self-efficacy and understanding how sources of self-efficacy information interact to shape PE teachers’ self-efficacy beliefs, as well as understanding how different instructional placements may inform efficacy. This dissertation was structured in a two-manuscript approach. The purpose of the first …

The Khronicon Part One: A Child Of The Sancti, Richard Gerard Catoire

English Theses & Dissertations

The Old Dominion University Master of Fine Arts in Creative Writing program requires students to produce a professional-quality manuscript in their area of concentration, whether that area be fiction, creative non-fiction or poetry, to serve as their thesis. Students in the fiction genre can chose to write a novel length manuscript of at least 120-pages in one fiction sub-genre (fantasy, historical, horror, literary, mystery/crime, romance, science fiction, suspense/thriller, westerns, and young adult), or they can chose to write a collection of short stories across multiple genres that adds up to a minimum of 120-pages.

The Khronicon Part One: A Child …

Impact Of Climate Change On Carbon And Nitrogen Balance In Zostera Marina L. (Eelgrass), Malee Jinuntuya

OES Theses and Dissertations

Seagrasses face vulnerability to both global stressors like Ocean Acidification (OA) and climate warming compounded by local stressors such as eutrophication that reduces light availability, leading to a complex dynamic of positive and negative effect on their growth and survival. Increased dissolved aqueous CO₂ (CO_2(aq)) benefits seagrasses by enhancing photosynthetic and growth rates, but it may increase nutrient demand, potentially depleting nutrient supply, especially in oligotrophic environments.

In this study, the long-term impact of CO₂ on Zostera marina L. (eelgrass) were investigated across a gradient of CO_2(aq) concentrations (55 – 2200 µM CO_{2(aq)) …}

Mass Tort Bankruptcy Goes Public, William Organek

Vanderbilt Law Review

Large companies like 3M, Johnson & Johnson, Purdue Pharma, and others have increasingly, and controversially, turned from multidistrict litigation to bankruptcy to resolve their mass tort liability. While corporate attraction to bankruptcy’s unique features partially explains this evolution, this Article reveals an underexamined driver of this trend and its startling results: government intervention. Governments increasingly intervene in high-profile bankruptcies, forcing firms into insolvency and dictating the outcomes in their bankruptcy cases. Using several case studies, this Article demonstrates why bankruptcy law should subject such governmental actions to greater scrutiny and procedural protections. Governments often assume multiple incompatible roles in these …

Free Speech For Me But Not For Airbnb”: Restricting Hate-Group Activity In Public Accommodations, Sabrina Apple

Vanderbilt Law Review

As digital services grow increasingly indispensable to modern life, courts grow inundated with novel claims of entitlement against these platforms. As narrow, formalistic interpretations of Title II permit industry leaders to sidestep equal access obligations, misinformed interpretations of First Amendment protections allow violent speech and conduct to parade uninhibited. Within the mistreatment of these two established doctrines lies a critical distinction: the former is in desperate need of modernization to fulfill its original intent, and the latter is in desperate need of restoration for the same ends. This climate creates conditions ripe for doctrinal upheaval. This Note considers how the …

Uni Science Education Update Conference, Save The Date Flier, Spring 2024, University Of Northern Iowa. Science Education Program.

Science Education Update Conference Documents

Announcement for the 2024 Science Education Update Conference.

Coming Home Again: Television Sitcom Revivals, Brandon K. Hedgepeth

Communication & Theatre Arts Theses

This thesis argues that the success of television situational comedy revivals correlates with television’s technological affordances as they have evolved over the past half-century. Specifically, three revival series are examined within this study, consisting of The New Leave it to Beaver (1983-1989), Fuller House (2016-2020), and The Conners (2018-Present). This paper uses the revival case studies to showcase their parallel relationship with the introduction of cable television and streaming media, alongside the resurgence of broadcast television to highlight the changing media landscape and the intertwined nature between technological advancement and the revival form. The study’s investigation of how nostalgia intersects …

Effectiveness Of Aerial Monitoring Of Spatial And Temporal Changes Of Santa Catalina Island Rhodolith Beds, Charnelle Wickliff

Capstone Projects and Master's Theses

The distribution and abundance of rhodolith beds off Santa Catalina Island, California are impacted by natural and anthropogenic factors. These complex, unattached coralline habitats provide food and shelter for important species; however, little is known about temporal variation in bed cover and distribution. Abiotic factors like heavy storms and surge can change bed boundaries and shape. Anthropogenic factors, such as disturbance from mooring chains, can create patchiness within beds. Studies of bed distribution and tracking changes in habitats have historically been done using labor-intensive SCUBA diving. This approach has excellent resolution at small scales but is limited in the temporal …

Mut: Human-In-The-Loop Unit Test Migration, Yi Gao, Xing Hu, Tongtong Xu, Xin Xia, David Lo, Xiaohu Yang

Research Collection School Of Computing and Information Systems

Test migration, which enables the reuse of test cases crafted with knowledge and creativity by testers across various platforms and programming languages, has exhibited effectiveness in mobile app testing. However, unit test migration at the source code level has not garnered adequate attention and exploration. In this paper, we propose a novel cross-language and cross-platform test migration methodology, named MUT, which consists of four modules: code mapping, test case filtering, test case translation, and test case adaptation. MUT initially calculates code mappings to establish associations between source and target projects, and identifies suitable unit tests for migration from the source …

Deep Reinforcement Learning For Dynamic Algorithm Selection: A Proof-Of-Principle Study On Differential Evolution, Hongshu Guo, Yining Ma, Zeyuan Ma, Jiacheng Chen, Xinglin Zhang, Zhiguang Cao, Jun Zhang, Yue-Jiao Gong

Research Collection School Of Computing and Information Systems

Evolutionary algorithms, such as differential evolution, excel in solving real-parameter optimization challenges. However, the effectiveness of a single algorithm varies across different problem instances, necessitating considerable efforts in algorithm selection or configuration. This article aims to address the limitation by leveraging the complementary strengths of a group of algorithms and dynamically scheduling them throughout the optimization progress for specific problems. We propose a deep reinforcement learning-based dynamic algorithm selection framework to accomplish this task. Our approach models the dynamic algorithm selection a Markov decision process, training an agent in a policy gradient manner to select the most suitable algorithm according …

Discovering Significant Topics From Legal Decisions With Selective Inference, Jerrold Tsin Howe Soh

Research Collection Yong Pung How School Of Law

We propose and evaluate an automated pipeline for discovering significant topics from legal decision texts by passing features synthesized with topic models through penalized regressions and post-selection significance tests. The method identifies case topics significantly correlated with outcomes, topic-word distributions which can be manually interpreted to gain insights about significant topics, and case-topic weights which can be used to identify representative cases for each topic. We demonstrate the method on a new dataset of domain name disputes and a canonical dataset of European Court of Human Rights violation cases. Topic models based on latent semantic analysis as well as language …

The Thermodynamics And Structure Of Tumor Suppressor P53 And Helical Mutants Binding To Inhibitors Mdm2 And Mdmx At The Primary And Secondary Sites, Pirada Serena Higbee

USF Tampa Graduate Theses and Dissertations

p53 is an intrinsically disordered protein that is a tumor suppressor. The transactivation domain is split into two parts (TAD1 and TAD2). These TADs bind to inhibitors MDM2, and a homolog, MDMX, but TAD1 binds with greater affinity. MDM2 is an E3 ubiquitin ligase that leads to the degradation of p53. MDMX is not an E3 ubiquitin ligase, but it does prevent p53 from binding to DNA, thus preventing its tumor suppressor role.

Previous research showed that increasing p53 helicity by mutating prolines to alanines increased p53's helicity but not the length of the helix. The increase in helicity increased …

I’M Not Lovin’ It: Re-Thinking Fast Food Advertising, Brody Shea, Michael S. Sinha

All Faculty Scholarship

In 1971, the Federal Trade Commission (“FTC”) and the Food and Drug Administration (“FDA”) agreed to prevent injury and deception to the consumer in advertising, detailing their respective roles in a Memorandum of Understanding (“MOU”).¹ The MOU proscribes that the FTC regulates truth in advertising relating to foods, drugs, devices and cosmetics while the FDA controls labeling and the misbranding of foods, drugs, devices, and cosmetics shipped in interstate commerce.² The MOU has been amended and an addendum added since 1971, but the material provisions have remained consistent for over a half-century.³

Importantly, the FDA and the …

Uni Schedule Of Classes: Policies And Procedures, Spring 2024, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.