Digital Commons Network^™

Living Color: Aesthetic Surfaces And Political Life In Brazil, Samuel E. Novacich

Dissertations, Theses, and Capstone Projects

This dissertation is about the manipulation of appearances – of both the human body and the built environment – in Rio de Janeiro, Brazil. Focused on Afro-aesthetic makeup and tanning practices as well as urban renewal projects, this ethnographic study reveals how the making over of both the skin and the urban landscape shape social inequalities and contribute to productions of race, gender, and national belonging. While some of the aesthetic technologies examined herein may be characterized as “bottom up” – or as the self-fashioning tactics of marginalized Afro-Brazilians – others constitute “top down” infrastructural interventions led by the state …

Response Styles In Multiscale Measures, Zebing Wu

Dissertations, Theses, and Capstone Projects

Response style, one common aberrancy in non-cognitive assessments in psychological fields, is problematic in terms of inaccurate estimation of item and person parameters, which leads to serious reliability, validity, and fairness issues (Baumgartner & Steenkamp, 2001; Bolt & Johnson, 2009; Bolt & Newton, 2011). Response style refers to systematic individual preference or avoidance of certain response categories (Bolt & Johnson, 2009), especially in self-reported Likert-type scales. When response style occurs, the selection of response options is not only influenced by the trait(s) of interest but also affected by one’s tendency to choose specific options stylistically.

Despite the fact that the …

The Beautiful And The Bullshit: Speaker And Listener Mental Representations Influence Bullshit Receptivity, Ryan Tracy

Dissertations, Theses, and Capstone Projects

Bullshit is a topic that has enjoyed an explosion of attention in both cognitive and social psychological research domains. While the picture painted thus far suggests that receptivity to such statements (i.e., perceiving meaning where none exists) hinges upon an individual’s ability to engage in reflective (vs. reflexive) cognitive processing, little attention has been paid to how purveyors of bullshit influence one’s willingness to engage with the message. This is critical to explore, given the status of misinformation in today’s media climate. A critical step involved in determining characteristics of speakers that predict bullshit receptivity is to understand how people …

Competitive And Noncompetitive Credit Assignment To Reward Cues In The Lateral Orbitofrontal Cortex, Mihwa Kang

Dissertations, Theses, and Capstone Projects

This dissertation investigates the mechanisms underlying variations in credit assignment to reward cues, with a focus on the lateral orbitofrontal cortex (lOFC). The lOFC has long been implicated in signaling reward expectancies, with controversy as to whether it signals the economic value of future outcomes, their sensory features to guide behavior or both. However, whether the lOFC signals the relative (competition-dependent) or absolute (contiguity-dependent) credit of cues is unknown. To address this, I employed a combination of novel behavioral assays, in-vivo electrophysiological recordings and optogenetic stimulation in rats. In Chapter 2, I tested the suitability of a self-initiating variant of …

Critical Artificial Intelligence Literacy Course: Exploring Ai’S History, Mechanics, Influence, Pamela Jean Stemberg

Dissertations, Theses, and Capstone Projects

The Critical Artificial Intelligence Literacy course is designed to equip students and educators with the tools to engage with Artificial Intelligence (AI) technologies critically. Initially conceived as a syllabus for the course Critical Approaches to Education Technology in the Digital Humanities Department of the Graduate Center, the project evolved into a comprehensive, modular program addressing the historical, technical, ethical, and societal dimensions of AI.

This course encourages a multidisciplinary approach by integrating perspectives from various fields, such as history, philosophy, ethics, technology, law, and social sciences. The design process draws from foundational courses like Digital Pedagogy and Methods, Theory, Design, …

Interplay Of Magnetic Impurities And Superconductivity In Topological Materials, Didier Ndengeyintwali

Dissertations, Theses, and Capstone Projects

The interplay of superconductivity and magnetism has been a long-standing topic of interest since the discovery of superconductivity. In recent years it has been shown that topological superconductivity, which has promising applications such as in topological quantum computing, could result from such interplay. Motivated by the later results I study the effect of magnetic impurities in superconducting doped topological insulators, such as Iron based topological superconductors. I show that topological character of parent materials could lead to modifications in the structure of magnetic impurity induced in-gap states. Moreover, the superconductivity induced interaction between magnetic impurities in doped topological insulator would …

Reviving Hysteria: The Nineteenth Century At The End Of The Twentieth, Christina Quintana

Dissertations, Theses, and Capstone Projects

This dissertation explores popular and medical representations of female madness in two time periods: the late nineteenth and late twentieth centuries. I argue that 1990s American culture produced an abundance of texts, images, and narratives that revitalized the iconography and medical discourses of late nineteenth-century hysteria. Analyzing popular texts, films, and cultural touchstones of the 1990s, I explore how Victorian ideas about women’s minds—such as the inherent feebleness of the female brain and nervous system; the fatalistic, life-altering effects of female puberty; the association between hysteria and deviant female sexuality; and the implicit racialization of hysteria and female madness more …

Brain Injury And Psychosocial Trauma: Outcomes Among Justice-Involved Individuals, Mahathi D. Kosuri

Dissertations, Theses, and Capstone Projects

Justice-involved individuals experience disproportionately high rates of both traumatic brain injuries (TBI) and psychosocial traumas. However, these traumas have yet to be conceptualized together, leaving a chasm of research on how they interact and influence this population. The current study was the first to measure the effects of TBIs as well as psychosocial trauma among justice-involved men, within the context of executive functioning, history of justice involvement, and recidivism. A sample of men (N=95) from a private correctional facility were given the Ohio State University Traumatic Brain Injury Questionnaire (OSU-TBI-ID), the Lifetime Stressor Checklist- Revised (LSC-R), along with …

Black Horror Film And The Role Of Mood In Race Perception, Nicholas P. Whittaker

Dissertations, Theses, and Capstone Projects

Contemporary discussions of black or antiracist art are often haunted by an air of pessimism. This pessimism rests on the intuition that art cannot change the political realities of antiblackness and/or our relationships with blackness. In this dissertation, I resist this hegemonic view by arguing that black horror films generate a particular, politically-valuable aesthetic experience. Specifically, they allow us to experience blackness and black people as unintelligible. This, I argue, runs counter to everyday experience of blackness; when blackness appears unintelligible, we lose the sense of satisfied comprehension that characterizes our everyday experiences of it. I argue that these films …

Controlling Emotional Text To Speech Using Complex Adverbial Phrases, Zainab T. Akande

Dissertations, Theses, and Capstone Projects

This study investigates the usage of adverbial modifiers from audiobook data as a resource for training speech synthesizers with a greater range of speech descriptions. The Tacotron2 text-to-speech (TTS) model was used for the purposes of this study. Utilizing the LibriTTS dataset, the Tacotron2 model is trained under two experimental conditions: one incorporating adverbial modifiers into the input text and the other without. The dataset preprocessing involves embedding descriptions using word embeddings and encoding speaker IDs with machine learning techniques. Additionally, the model architecture includes a prosody encoder inspired by prior research. Evaluation of the trained models involves subjective assessments …

Design And Characterization Of De Novo Photoactivated Charge Separating Proteins, Paul M. Molinaro

Dissertations, Theses, and Capstone Projects

Light activate charge separation can provide high energy electrons for a variety of chemical processes. Reaction center proteins serve as a scaffold for small molecules that serve as “hopping” sites for electrons. Previous reaction center designs are four helix bundles that bind at minimum two metalloporphyrin’s: a zinc porphyrin serves as a light activated electron donor, mimicking chlorophyl, and a heme molecule serving as the acceptor. The efficiency of these designs is hampered by the enhanced relaxation of the singlet excited state of zinc porphyrin molecules due to spin-orbit coupling with the paramagnetic heme acceptor. The optimal design would contain …

Race, Rebellion, And Counterinsurgency: California's Supermax Prisons, Stephen Jones

Dissertations, Theses, and Capstone Projects

This dissertation project concerns the geographies of counterinsurgency in California’s super-maximum-security prisons. I argue that these facilities – the first of which opened in the mid-1980s, and which were more repressive and isolating than any of California’s existing prisons – were explicitly developed in response to powerful organizing by people in prison. As early as 1973, corrections administrators and prison officers argued that dangerous prison gangs, organized along racial and geographical lines, were behind prisoner militancy, and advocated for expansive security measures including indefinite confinement in supermax prisons. I demonstrate, however, that officers and administrators deliberately promoted conflict, attempting to …

Advancing Affective Computing: Emotion Recognition And Tracking Across Diverse Contexts (Varied Environments), Shao Liu

Dissertations, Theses, and Capstone Projects

Affective Computing (AC) is an interdisciplinary field that recognizes, interprets, and processes human emotions. Emotions are complex, involving consciousness, physical sensations, and behavioral expressions, and are significant in various domains like mental health, human-computer interaction, and social security. Real-world applications of AC include monitoring drivers’ emotional states to improve road safety and understanding the emotions expressed by artists in visual arts. Traditional methods relying on facial expressions often fall short due to the nuanced nature of emotions, which vary across individuals, cultures, and contexts. Accurate AC systems require sophisticated, multimodal models to handle these variations and external factors like noise …

Resting-State Eeg Microstate Features For Major Depressive Disorder Classification, George M. V. Quinn

Dissertations, Theses, and Capstone Projects

Neuroimaging studies have revealed consistent abnormalities in functional connectivity within specific neural networks that may serve as biomarkers for major depressive disorder (MDD). It is important to find inexpensive, non-invasive techniques that target these biomarkers to make diagnosis easier and more objective. EEG microstates are quasi-stable potential topographies that are thought to reflect the quasi-stable network activity of the underlying neural generators. MDD has been shown to alter features of the four canonical EEG microstates (A, B, C, D) with some conflicting results. The most consistent network abnormalities in MDD are found in the anterior default mode network, and this …

Factors Affecting Pretonic Deletion In English Syllables: A Corpus Study, Whitney Barnett-Rhodes

Dissertations, Theses, and Capstone Projects

One type of variation in pronunciation that is associated with fast and/or conversational speech is massive reduction, in which entire syllables are deleted. We focus on a subtype of massive reduction, pretonic vowel deletion, where the vowel in an unstressed syllable is deleted and the flanking consonants form an onset cluster, V --> φ / C__C, such as the word Columbus reduced to the two-syllable pronunciation [klʌmbəs], resulting in the onset cluster [kl]. The main question asks what predictors are associated with pretonic vowel deletion. Furthermore, we evaluate the Lexicalist Hypothesis and Sonority Projection as explanations of the phenomenon. …

"White Slaves Of California": Race, Religion, And The Railroad In Maria Amparo Ruiz De Burton's The Squatter And The Don, Katie Buonanno

Dissertations, Theses, and Capstone Projects

In The Squatter and the Don (1885), Maria Amparo Ruiz de Burton depicts the decline of the Alamars, a patrician Californio family, in the years after California was annexed by the United States. This thesis explores the different rhetorical maneuvers Ruiz de Burton makes to place the Californios in a broad, enfranchising Anglo-American national paradigm. The novel negotiates the messy, competing histories of Spanish, Mexican, and American colonialism, ultimately making the case for the enduring presence of Spanish missionization in the region, as well as the cultural assimilability of the Californio population. While the novel has frequently been read as …

United States Foreign Policy Towards South Africa: From Constructive Engagement To Comprehensive Anti-Apartheid Act Of 1986, Jennifer J. Squires

Dissertations, Theses, and Capstone Projects

U.S. domestic pressure groups have historically utilized the tactic of lobbying Congress as a tool to pressure the legislative body to make specific foreign policy decisions. My research findings suggest that over various periods of time, in total spanning approximately four decades, first heralded by African American human rights leaders and organizations, the actions of six separate domestic anti-apartheid economic sanctions and divestment organizations, influenced by episodic anti-apartheid protest actions in South Africa, used their varied American protest actions to remind and to admonish Congress that apartheid is synonymous with racism. Thus, apartheid had to be dismantled. An important number …

Original Vs. Simplified Miranda Rights: The Impact On Miranda Rights Comprehension And Subsequent Waiver Decisions, Sydney Baker

Dissertations, Theses, and Capstone Projects

Youths’ developmental immaturity negatively impacts their ability to meaningfully understand and appreciate their Miranda rights, raising questions about the validity of their waiver decisions. Moreover, most Miranda warnings are long, written at advanced reading levels, and contain complex sentence structure and vocabulary, which further hinders comprehension. In response, several jurisdictions have begun to use developmentally informed Miranda warnings for youth. However, research has yet to determine whether this improves youths’ ability to make informed Miranda waiver decisions. As such, the current research study explored whether simplified Miranda warnings increased youths’ comprehension of their rights, whether Miranda comprehension was related to …

Trends And Predictors Of Internet Use For Health-Related Purposes Among Adults In The United States Of America, Paul Ayamah

Dissertations, Theses, and Capstone Projects

This longitudinal study draws on data from the Computer and Internet Use Supplement (CIUS) of the Current Population Survey (CPS) across 2015, 2017, 2019, and 2021 and examines three domains of internet use for health-related purposes: seeking health information online, communicating with healthcare providers via digital platforms, and using electronic health monitoring devices to monitor and transmit health data. The study reveals a 10.60% increase in health-related internet use between 2015 and 2021 among all respondents. Communication with healthcare providers online increased from 21.71% in 2015 to 27.7% in 2021 (p < 0.001), while the use of electronic devices to monitor and transmit health data recorded the least growth of 3.15% in 2014 to 5.93% in 2021 (p < 0.001). Patient communication with a health service provider over the internet demonstrates the most significant increase of 3.74%. Furthermore, this study uncovers disparities between internet use among younger (aged 18-39) and older (aged 75 and older) adults, in which young adults were more likely to seek health information online. From the multivariable logistic regression, factors most likely to contribute to online information seeking include: higher educational attainment, access to multiple digital devices, and access to multiple internet sources.

The study highlights persistent digital divides, particularly among older …

Public Sector Use Of Private Sector Personal Data: Towards Best Practices, Teresa Scassa

Dalhousie Law Journal

Governments increasingly seek to use personal data sourced from the private sector for purposes that range from the generation of statistics to municipal planning. The data collected by companies is often high volume and rich in detail. Location and mobility data—which have many applications—are collected by multiple private sector actors, from cellular service providers to app developers and data brokers. Financial sector organizations amass rich data about the spending and borrowing habits of consumers. Even genetic data is collected by private sector companies. The range of available data is constantly growing as more and more data is harvested, and as …

Assessment Of Novel Protein Ingredient Arthrospira Platensis And Soybean Genotype Amino Acid And Oil Selection Improvements On Broiler Performance For A 28-42 D Feeding Period, Savannah C. Wells-Crofton, Kenneth B. Nelson, Garrett J. Mullenix, Craig W. Maynard, Michael T. Kidd

Poultry Science Faculty Publications and Presentations

Two experiments were conducted to assess the efficiency of including the novel protein ingredient Arthrospira platensis or improved soybean meal in a broiler diet. The first experiment aimed to determine the feeding value of soybean meal produced from varieties of soybeans bred for increased amino acid content (SBAA) and improved oil content (SBO) compared to a conventional soybean variety in an ANOVA design fed to Cobb 500 female broilers for 28–42 d. The SBAA and SBO soybeans contained overall higher amino acid content and lower oligosaccharide content compared to the conventional soybean variety in addition to improved oil quality. The …

Survey Of Uav Security Authentication And Cryptography Protocols, Manar H. Abed, Shatha H, Soukaena H. Hashiem

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Unmanned aerial vehicles, or UAVs, are gaining significant attention becauseof the strategic and financial information and value inVolved in aerial applications, as wellas the sensitive data collected through embedded sensors. UAVs are rapidly developing invarious fields and find widespread utility in military applications for effective targettracking, battlefield surveillance, radiation monitoring, and sports. UAVs are useful andadvantageous, but they can also be attacked by a variety of techniques, including jamming,fuzzing, false data injection, and zero attacks. Researchers were looking on robust securitymechanisms to protect UAVs from attackers in order to combat such security risks.However, there is a large number of vulnerabilities …

Comparative Analysis Of Two Robust Strategies For An Angular Velocity Control System, Aws Mahmood Abdullah, Hasan H., Arif A. Al-Qassar, Shibly A. Al-Samarraie

Iraqi Journal of Computers, Communications, Control and Systems Engineering

In this paper, a novel flow control strategy which is the inletthrottled pump was used to design an angular velocity control system forrotary actuator. Inlet throttled systems have good performance in addition totheir high efficiency compared to traditional valve controlled systems. Theflow in the proposed system is adjusted by a valve that is positioned at thepump inlet with the purpose of reducing the energy loses across the valve.This regulated flow is used then to control the actuator angular velocity. Thesystem was modeled and the open loop stability and performance werestudied. In order to improve the system performance, Robust-Proportional-Integral-Derivative (RPID) and …

Peat Fires And Legacy Toxic Metal Release: An Integrative Biogeochemical And Ecohydrological Conceptual Framework, Colin P.R. Mccarter, Gareth D. Clay, Sophie L. Wilkinson, Gabriel Sigmund, Scott J. Davidson, Muh Taufik, Susan Page, Emma L. Shuttleworth, David Mclagan, Grant Chenier, Alexandra Clark, James M. Waddington

School of Geography, Earth and Environmental Sciences

Peatlands are potent landscape sinks of natural and industrial toxic metals and metalloids (TMMs) but the long-term sequestration of TMMs in peatlands is at increasing risk due to climate change enhanced peatland fires. The ability of peatlands to retain TMMs results from a host of interacting hydrological, biological, geomorphological, and chemical feedbacks, which underpin peatland functionality in general. Fire is a transformative force that often disrupts these interactions and feedbacks, leading to the potential release of TMMs to our air, land, and water. Given that wildfire burned area and severity are increasing there is a need for a conceptual understanding …

Spot, Zone And Overcoat Painting Of Steel Bridges, Christopher Goff, Sudhir Palle

Kentucky Transportation Center Research Report

Over the past 25 – 30 years, the Kentucky Transportation Cabinet (KYTC) has replaced lead-based coatings on many bridges, often with zinc-based systems. But many of these coating systems are now degrading and reaching the ends of their service lives. Historically, KYTC has relied entirely on remove-and-replace painting, however, given the programmatic costs associated with remove-and-replace painting and constraints imposed by limited funding, the agency needs to explore more economical options, such as spot, zone, and overcoat painting. This report discusses use cases for spot, zone, and overcoat painting and lays out guidelines staff can use to determine what method …

Improving Volatility Forecasting: A Study Through Hybrid Deep Learning Methods With Wgan, Adel Hassan A. Gadhi, Shelton Peiris, David E. Allen

Research outputs 2022 to 2026

This paper examines the predictive ability of volatility in time series and investigates the effect of tradition learning methods blending with the Wasserstein generative adversarial network with gradient penalty (WGAN-GP). Using Brent crude oil returns price volatility and environmental temperature for the city of Sydney in Australia, we have shown that the corresponding forecasts have improved when combined with WGAN-GP models (i.e., ANN-(WGAN-GP), LSTM-ANN-(WGAN-GP) and BLSTM-ANN (WGAN-GP)). As a result, we conclude that incorporating with WGAN-GP will’ significantly improve the capabilities of volatility forecasting in standard econometric models and deep learning techniques.

Review On Assessment And Performance Mechanism Evaluation Of Non-Structural Concrete Incorporating Waste Materials, Nuha S. Mashaan, Appuwa De Silva

Research outputs 2022 to 2026

This research seeks to solve the multi-faceted problem of waste disposal by analysing the application of waste plastic and tyre material within non-structural concrete to ensure more sustainability and less environmental degradation. The study focusses on material properties, including specific gravity, water absorption, and bulk density and characteristics of the concrete that is produced by the utilization of the above waste aggregates, including workability, compressive strength, flexural strength, and tensile strength. This paper employs results from published past research from the literature and MATLAB (R2021b) in the analysis of the findings, pointing to the fact that the mechanical properties reduce …

The Influence Of Information Technology On Supply Chain Resilience Through Purchasing Strategy, Production Flexibility, And Supply Chain Responsiveness, Ruth Srininta Tarigan, Zefanya Valentino Bastanta Tarigan, Maria Natalia Damayanti Maer, Zeplin Jiwa Husada Tarigan, Ferry Jie

Research outputs 2022 to 2026

In today's rapidly changing business environment, companies need to be dynamic, adapting their internal processes to respond effectively to external changes. Information Technology has become crucial for businesses to enhance their ability to manage and adapt to change. This study examines East Java manufacturing companies that have heavily invested in sustainable IT systems to enhance their supply chain responsiveness and resilience through improved purchasing strategies and production flexibility. The study collected data from companies that had implemented IT for at least three years, with respondents being permanent employees with a minimum of two years' experience. Analysis of 108 survey responses …

Regretting Nothing, Or Regretting Everything? Postfeminism, Femininity, And Regret In Miss Austen Regrets, Jessica Taylor

Research outputs 2022 to 2026

This article considers how regret is mobilized within a postfeminist cultural context, taking the 2007 BBC film Miss Austen Regrets (dir. Jeremy Lovering, UK) as its case study. The article proposes that what is regretted in postfeminist culture speaks to the values and tensions that underpin this cultural context and explores how the expression or experience of regret is treated as proof of women's failures of subjectivity and decision-making. Through examining three of the main characters — Jane Austen, Cassandra Austen, and Fanny Austen Knight — and their interactions with regret, this article argues that both normative femininity and feminist …

Addressing The Effect Of Intra-Seasonal Variations In Developing Rainfall Thresholds For Landslides: An Antecedent Rainfall-Based Approach, Vishnu Chakrapani Lekha, Thomas Oommen, Snehamoy Chatterjee, Kochappi Sathyan Sajinkumar

Michigan Tech Publications

We developed a rainfall threshold model with the objective of limiting the effects of uncertainties typically associated with them, such as a lack of robust landslide database, the selection of the contributing rain gauge, seasonal variations in rainfall patterns, and the effect of extreme rainfall conditions. With the aid of gauge-corrected satellite precipitation data and a landslide database compiled from various sources, separate rainfall thresholds were developed for two waves of the monsoon season in the Western Ghats, India. The daily vs. antecedent rainfall distributions for different scenarios of antecedent rainfall were analyzed for landslide occurrence. The different scenarios considered …