Digital Commons Network^™

Teaching The Actuality Of Revolution: Aesthetics, Unlearning, And The Sensations Of Struggle, Derek R. Ford

Education Studies Faculty publications

Exploring the nexus between aesthetics, pedagogy, and politics illustrates the central role education plays in reproducing injustice and inhibiting confidence in revolutionary struggle. Demonstrating how capitalism and its attendant forms of oppression are not merely cognitive but perceptual, Derek R. Ford proposes that revolutionary education demands the production of aesthetic experiences through which we sense the possibility and actuality of alternative worlds. To create such encounters, Ford develops a praxis of teaching and a pedagogy of unlearning that, in our current conjuncture, creates conditions for encountering what Jennifer Ponce de León calls “an other aesthetics.” Mapping contemporary capital as a …

Sentiment Strength And Topic Recognition In Sentiment Analysis, Esi A.R. Adeborna

Masters Theses

"Current sentiment analysis methods focus on determining the sentiment polarities (negative, neutral or positive) in users’ sentiments. However, in order to correctly classify users’ sentiments into their right polarities, the strengths of these sentiments must be considered. In addition to classifying users’ sentiments into their correct polarities, it is important to determine the sources and topics under which users’ sentiments fall. Sentiment strength helps as to understand the levels of customer satisfaction toward products and services. Sentiment topics on the other hand, helps to determine the specific product/service areas associated with user sentiments. This paper proposes two sentiment analysis approaches. …

Designing Exterior Lighting For Safety And Comfort While Minimizing Light Pollution, Energy Consumption, And Cost, Stephen Michael Simmons

Masters Theses

"Artificial light at night brings many benefits to society. However, these benefits do not come without costs. One environmental issue that is often overlooked in the design of public spaces and infrastructure is light pollution. At the expense of large amounts of energy, light pollution causes numerous harmful effects on human health, ecosystems, and the night sky. Today, the problem is becoming more widespread, especially with the increasing use of bright, white LED luminaires. Thus, it is imperative for designers and engineers to create smarter lighting designs that not only allow for safety and comfort at night but also promote …

Dynamic Discounted Satisficing Based Driver Decision Prediction In Sequential Taxi Requests, Sree Pooja Akula

Masters Theses

"Ridesharing platforms rely on connecting available taxi drivers to potential passengers to maximize their revenue. However, predicting the stopping decision made by every driver, i.e., the final task performed during a given day, is crucial to achieving this goal. Unfortunately, little research has been done on predicting drivers’ stopping decisions, especially when they deviate from expected utility maximization behavior. This research proposes a Dynamic Discounted Satisficing (DDS) heuristic to model and learn the task at which human agents will stop working for that day, assuming that the human agents are taking sequential decisions based on their preference order. We apply …

Rebuilding Grid Governance, Joel B. Eisen, Heather E. Payne

Law Faculty Publications

As climate change sharpens the focus on our electricity systems, there is widespread agreement that the institutions that govern our electric grid must change to realize a clean energy future in the timescale necessary. Scholars are actively debating how grid governance needs to change, but in this Article we demonstrate that current proposals are insufficient because they do not contemplate “rebuilding.” This Article defines “rebuilding” as ending entities tasked with grid governance and creating new ones to take their place. We propose what no one else has: an overarching framework for rebuilding any grid governance institutions.

This Article discusses when …

Humans In The Loop, Rebecca Crootof, Margot E. Kaminski, W. Nicholson Price Ii

Law Faculty Publications

From lethal drones to cancer diagnostics, humans are increasingly working with complex and artificially intelligent algorithms to make decisions which affect human lives, raising questions about how best to regulate these “human-in-the-loop” systems. We make four contributions to the discourse.

First, contrary to the popular narrative, law is already profoundly and often problematically involved in governing human-in-the-loop systems: it regularly affects whether humans are retained in or removed from the loop. Second, we identify “the MABA-MABA trap,” which occurs when policymakers attempt to address concerns about algorithmic incapacities by inserting a human into a decisionmaking process. Regardless of whether the …

Parens Patriae After The Pandemic, Meredith Johnson Harbach

Law Faculty Publications

The COVID-19 pandemic prompted extraordinary state action to protect American children. Acting in its longstanding role as parens patriae, the state stepped in to protect children and their families from the ravages of the pandemic as well as from the dramatic upheaval it precipitated. This Article will evaluate the state’s pandemic response vis-à-vis children and their families, mining the experience for lessons learned and possible ways forward. Specifically, this project will argue that the state’s pandemic response represented a departure from the state’s conventional approach to parens patriae. Conventional practice prior to the pandemic was characterized by a state model …

#Onygo, Géraldine Blattner, Amanda Dalola, Stéphanie Roulon

PDXOpen: Open Educational Resources

#OnYGo is an innovative first-year French language e-textbook, designed as Open Educational Resource (OER), for learning beginning French (equivalent to one year at an American university). It is inspired by a remix of task-based, multiliteracies and communicative approaches, which provides students with opportunities to engage with French language and culture in a variety of contexts and situations, across a range of modalities. Through a wide range of activities, students develop and practice their language skills, and reflect on their cross-cultural knowledge and positionality in their understanding of the vast francophone landscape. #OnYGo is a first-year textbook that takes a DEI-forward …

Surface Modification Of Carbon-Based Electrodes For Electrochemical Conversion Processes: Oxygen Reduction Reaction And Bicarbonate Conversion, Udari Shyamika Kodithuwakku Arachchige

Theses and Dissertations--Chemistry

Oxygen reduction reaction (ORR) and conversion of bicarbonate into value-added chemicals are two significant electrochemical processes for energy storage and conversion. ORR is an important electrochemical reaction in fuel cells and metal-air batteries that provide power conversion and storage capacity, respectively, for portable electronics, and electric vehicles. However, the performance of catalysts (e.g., platinum-based) is critically limited by slow kinetics, inefficient four-electron pathway, and surface deactivation. This limited performance of platinum-based catalysts, the scarcity of platinum, and vulnerable supply chains for critical minerals require the development of alternative electrocatalysts now more than ever. Carbon-based materials possess several key properties that …

First Principles Calculations To Investigate Surface And Catalytic Properties Of Materials For Green Energy Generation, Keerthan Raghavendra Rao

Theses and Dissertations--Chemistry

Climate change due to greenhouse gas build up in the earth’s atmosphere is an existential threat to humanity. To mitigate climate change, a significant shift from fossil fuels is necessary. Over the years, several renewable energy sources like solar, wind, geothermal etc. have been explored with the aim providing carbon-free energy. In this work, we focus on using density functional theory (DFT) methods to investigate key functional properties of materials of interest for applications in solar cells and catalytic conversion for energy generation. We show geometric effects of carboxylic acid binding on a transition metal surface to impact the deoxygenation …

Experimental Evaluation Of Micro-Epidermal Actuators On Flexible Substrates, Courtney D. Bradley

Graduate Research Theses & Dissertations

Does embedding actuators in a flexible substrate increase their performance in hearing aids? What are the differences in damping experienced by actuators of different diameters and at different locations? At what frequency is peak acceleration achieved and what role does the size of the actuator and embedding it in a flexible substrate play? These questions will form the basis of this thesis. This work was done to develop a small non-invasive Band-Aid-©-like hearing aid. The novelty of this device requires a detailed analysis of piezoelectric actuators. This is a continuation of past students’ work on the topic. The main parameters …

Herstory 101: Examining The Representation Gap Of Bipoc Women Educational Leaders, Kinasha Brown

Graduate Research Theses & Dissertations

Background/Purpose: The purpose of this study was to examine how lived experiences influenced perceptions of leadership self-efficacy amongst Black, Indigenous, or Person of Color (BIPOC) women educational leaders in order to minimize future representation gaps in educational leadership. Methods: Qualitative interviews were conducted with 14 BIPOC cis-gender female leaders who worked in a large school district in the southwestern region of the United States. Results: Examining the social constructs of race, gender, leadership makes clear how BIPOC women are socially constructed as inferior and how that played out in this educational leadership settings. The interconnectedness of both approaches contributes to …

Dynamic Overnight Effect On Next Day Stock Market Forecasting, Thomas J. Lee

Graduate Research Theses & Dissertations

Using a cross section of stocks that have high frequency trading data from 2007 to 2018, we document whether various intraday momentum patterns found in the financial literature over the years continue to hold over time. The first half hour return on the market is often seen as having predictive power over the last half hour of trading, or overnight returns are thought to reverse in the next day's first half hour of trading. We find that while there is some evidence for these patterns, especially in the earlier years, these patterns tend to weaken over time as investors take …

Using Machine Learning To Predict Student Outcomes, Saba Fatima

Graduate Research Theses & Dissertations

Predicting students’ performance to identify which students are at risk of receiving aD/Fail/Withdraw (DFW) grade and ensuring their timely graduation is not just desirable but also necessary in most educational entities. In the US, not only is the Science, Technology, Engineering, and Mathematics (STEM) major becoming less popular among students, the graduation rate of STEM students is steadily declining. The lack of STEM graduates in the US is a serious problem that will place this country at a disadvantage as a competitor in international technological advancement. In order to secure its status as a technological leader internationally, the US institutions …

Christianity And Mental Health Counseling: Voices Of The Black-Negro American Experience, Kyle Preston Goodwin

Graduate Research Theses & Dissertations

The narration of the lived experiences of Black-Negro Christian Americans in relation to mental health counseling services is vital because opportunities for researchers and clinicians to hear their voices instead of a story written for them by the leading culture is created. Specifically, when it comes to Black-Negro spirituality and religion as part of Black-Negro culture, it is one of the most beautiful and intriguing experiences that exists. A critical theory paradigm is being used for how knowledge is created and disseminated for the purposes of social change. Narrative Qualitative research is used to capture the Black-Negro voice, along with …

Surface Modified Titanium And Doxycycline Loaded Pcl/Plga Nanofibers For Improved Cellular Interaction And Biocompatability, Dexter D. Kling

Graduate Research Theses & Dissertations

Biomaterials play an important role in modern medicine through their complexfunctionalities, as implants, grafts, and drug delivery systems. The addition of dopants and biomolecules in biomaterials offers unique solutions to common issues and provides new methods of improving overall health. In our work, we examined osteoblast cell interactions with titanium (Ti) after alkali treatment and deposition of magnesium (Mg) and iron (Fe). We also studied the antibacterial properties of doxycycline loaded polymeric nanofibers produced via electrospinning. To study the biological properties of surface-modified Ti, we first prepared commercially pure titanium samples by grinding and polishing, then performed alkali treatment in …

Examining Early Word Recognition Instruction: Synthetic Phonics Vs. Analytic Phonics, Jenelle Gallagher-Mance

Graduate Research Theses & Dissertations

This single subject experimental design study used an adapted alternating treatment design to examine the effects of a synthetic phonics intervention and an analytic phonics intervention on oral reading accuracy, oral reading rate, and letter-sound correspondences among first grade students. Students who were reading at least two levels below guided reading level expectations and scored below the 25th percentile on the AIMSweb R-CBM (2017) fluency probe and the Words Their Way Primary Spelling Inventory (Baer et al., 2007) were selected to participate in the study. Five participants received daily instruction based on a synthetic phonics intervention (systematic directed phonics) or …

Design And Cold Test Of A Metamaterial Accelerating Structure For Two-Beam Acceleration, Dillon Christopher Merenich

Graduate Research Theses & Dissertations

Structure-based wakefield acceleration (SWFA) is an advanced accelerator concept that can achieve higher accelerating gradients than conventional accelerators. Advanced structures are required for SWFA, with metamaterial (MTM) structures as a promising candidate. MTMs are periodic sub-wavelength structures engineered to exhibit exotic electromagnetic properties, such as simultaneously negative permittivity and permeability. Because of their unique electromagnetic properties, MTMs are particularly interesting to SWFA. Previous studies at the Argonne Wakefield Accelerator have demonstrated efficient wakefield power extraction using MTM structures. This thesis presents the design, fabrication, and cold test of an X-band MTM accelerating structure for two-beam acceleration. An MTM structure was …

Shop Talk: Decreasing The School-To-Prison Pipeline For African American Male Students, Treveda Michelle Redmond

Graduate Research Theses & Dissertations

This dissertation used a plan, do, study, act (PDSA) cycle from improvement science toimplement a tier three intervention for African American male students in a middle school. The students who participated in the intervention were considered at-risk for school failure based upon behavior and grades in the first quarter of the school year. Community members assisted in creating a shop-talk experience for the students where they were able to engage with each other and successful African American male members of the community. Results indicate the shop-talk intervention was successful. Planning for the next PDSA cycle is discussed as well and …

Social Media, Gender, And Cancel Culture In The Punk Scene, Elizabeth Alexandra Mitchell

Graduate Research Theses & Dissertations

This thesis intends to examine the technological, political, and social dynamics surrounding the cancelation of musicians within the punk scene, specifically, modern Bay Area punk band, SWMRS. The technological dynamics involve the internet, networked publics, and digital politics. The social dynamics are not separate from sociality facilitated by social media and the networks they create. The politics of this context involves gender and the struggle over women’s agency to fight against sexual abuse and the social injustice it perpetuates. Because this thesis is interested in these issues within the context of popular music, it draws on the work on music …

Using Machine Learning To Search For Vector Boson Scattering At The Cms Detector During Run 2, Mark Mekosh

Graduate Research Theses & Dissertations

This work reports on the use of different machine learning (ML) techniques in the search for vector boson scattering (VBS) events in the semileptonic $WV$ channel. VBS is an important process for studying electroweak symmetry breaking (EWSB), the Higgs mechanism, as well as for probing beyond the standard model physics. Boosted decision trees as well as deep neural networks were trained on Monte Carlo simulation samples and applied to 137 fb$^{-1}$ of proton-proton collision data taken from 2016 to 2018 by the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) with a center of mass energy $\sqrt{s} …

Feedback In Context: A Case Study Of Students’ Perceptions Of The Role, Value, And Use Of Instructor Feedback In A College Writing Course, Susan J. Roach

Graduate Research Theses & Dissertations

This case study investigated first-year composition students’ perceptions of instructors’ written feedback. Participants reported on their understanding of the role of feedback, how they processed feedback, and if and how they used it. Thirty-one participants completed a short online survey; the responses were analyzed to identify students who exhibited a range of attitudes and practices. From this group, 15 students were chosen to participate in semi-structures interviews that included a think aloud exercise that asked them to go over previously graded drafts from their class. The findings of this study support that, although students profess they appreciate and see value …

Insight Into The Nanostructure Of “Water-In-Salt” Solutions: A Saxs/Waxs Study On Imide-Based Lithium Salts Aqueous Solutions, Xinyi Liu

Graduate Research Theses & Dissertations

The fundamental understanding of the liquid electrolytes (LEs) solvation structure and electrode-electrolyte interface behavior is important to the entire electrochemical energy storage field. Understanding the solvation structures from a few angstroms to hundreds of nanometers will undoubtedly lay a good foundation for studying the macroscopic transport properties, such as viscosity and ionic conductivity, of the LEs."Water-in-salt" electrolytes that contain 21 m lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) with excellent electrochemical and physical properties have been extensively investigated. However, the structural understanding of the LiTFSI in water is still lacking. Here, we perform synchrotron X-ray scattering to systemically study the structural variation of …

Essays On Parental Migration In China And Performance Of Two Asset Pricing Models, Yuqing Song

Graduate Research Theses & Dissertations

This dissertation comprises two research strands. The first strand investigates the migration choices of parents in rural China and their specific impact on children's educational outcomes. The second strand delves into the realm of financial econometrics, focusing solely on the performance of two asset pricing models on days scheduled for important macroeconomic news announcements.

The first essay places emphasis on the migration decisions of two-parent households with school-aged children. The findings affirm the hypothesis that household characteristics, rather than each parent’s personal traits, play an important role in determining parents’ migration choices.

The second essay examines the short-run effects of …

Late Holocene Terrestrial Hydroclimate Reconstructions From Central And South American Sites, Brittany N. Price

Graduate Research Theses & Dissertations

Terrestrial records of hydroclimate variability from Central and South America were developed to better constrain previously unknown regional responses to a range of hydroclimate drivers in the recent past. Developing these late Holocene terrestrial hydroclimate records improves our understanding of past hydroclimate variability by increasing temporal resolution and allows us to further understand complexities in spatial dynamics of the climate system. From South-Central Chile, a geomorphic analysis of landforms emplaced in a glacial valley indicated a positive glacial mass balance in the recent past. A high-precision chlorine-36 chronology was developed from basaltic boulders, with additional minimum constraining ages from Araucaria …

Chevrel Phase Materials For Electrocatalytic Chemical Conversion, Fan Xia

Graduate Research Theses & Dissertations

Electrocatalysis has played significant roles in energy conversion and environmental applications. This dissertation focusses on electrocatalytic performance of Chevrel phase material and building up relationship between structure with durability and activity.The dissertation mainly contains four parts. In chapter 2, the Ni2Mo6S8 catalyst exhibited in producing hydrogen peroxide with an outstanding selectivity of nearly 98%, derived from the combined ligand and ensemble effects of Ni, coupled with the strategic placement of Ni, Mo, and S in the active structure of the catalyst. Those synergistic effect results in a remarkable turnover frequency (TOF) of 30 s-1, leading to a hydrogen peroxide synthesis …

Thermal Analysis Of Thermal Shield For Pip-Ii Ssr1 Cryomodule, Victor Aguado Rodriguez

Graduate Research Theses & Dissertations

Fermilab's PIP-II project plans to enhance the onsite accelerator into the world's most intense neutrino beam, bringing Fermilab into the next generation of particle accelerators. The five different types of cryomodules are vital parts of the PIP-II project and each requires numerous engineering analyses to prove operation. For example, the thermal shield of the Single Spoke Resonator-1 (SSR1) cryomodule required a thermal analysis to ensure the design was operating as intended before fabrication commenced. The thermal shield is cooled by the supercritical helium inside of the extrusion and must remain between 45 and 80 Kelvin. The main purpose of the …

No More Prolonging Students’ Sense Of Belonging: A Content Analysis On The Issues And Resolutions Regarding Discriminatory School Discipline Outcomes For Students Of Color, Taren Renee Turner

Graduate Research Theses & Dissertations

Racial discrimination in school discipline for students of color is steeped within the history of educational institutions throughout the United States. Despite the federal law Title VI, which prohibits discrimination in schools based on race, color, or national origin, discriminatory school discipline outcomes persist and perpetuate educational inequities and continued marginalization of students of color. The issue of disparate school discipline is attributed to implicit and explicit adult biases, cultural dissonance between teachers and students, and systemic issues in school discipline policies, such as subjective and vague definitions for minor discipline infractions and wide-sweeping zero-tolerance policies. As a result of …

Prioritized Object Detection Integrating Fuzzy Logic Risk Assessment And Planned Path., Khatereh Mohammadi

Graduate Research Theses & Dissertations

Nowadays, Autonomous Vehicles are in the spotlight as a response to the challenges stemming from population growth, worsening traffic congestion, and rising road accidents. Researchers and companies are concentrating on developing Automated Driving Systems (ADS) to tackle these issues.Of the various components that constitute an autonomous vehicle, perception plays a pivotal role, akin to the function of human eyes and the human brain. Therefore, ensuring precise and reliable perception within Autonomous Vehicles is paramount. This thesis is inspired by the principles of human perception, particularly on the road, and endeavors to replicate this process. Just as a human driver does …

A High-Precision Electron Emission Model: Computational Methods For Nanoscale Structures, Alister J. Tencate

Graduate Research Theses & Dissertations

The high-intensity, high-brightness and precision frontiers for charged particle beams are an increasingly important focus for study. Electron microscopy has demonstrated high quality beams from a single nanotip emitter, and cathodes of structured nanoscale arrays show promise as ultracold electron sources. Optimization of the cathode design for precision applications necessitates a detailed treatment of the interplay between the structure geometry, quantum mechanical emission mechanism, and electromagnetic interactions between the emitted electrons and the boundary interface. This dissertation details the numerical tools developed to simulate these processes efficiently with enough fidelity to be accurate even in the ultracold regime.

Conventional simulation …