The Iowa State University Digital Repository provides open access to the full-text of many theses and dissertations completed at Iowa State University. From this page, you can either browse our theses and dissertations by academic department or by the year of completion.

Some Iowa State theses and dissertations are not eligible for open access. These may be accessible, with some restrictions, via ProQuest/UMI. On the ProQuest site, the full text of Iowa State's digital theses and dissertations can be viewed by members of the Iowa State community (current students, faculty, and staff) or individuals searching from Iowa State campus IP addresses. Others can view only the first 25 pages of a thesis or dissertation from Iowa State

Finally, some Iowa State theses and dissertations exist only in paper format. For more information, see How to find dissertations and theses through the Iowa State University Library, or contact your subject librarian.

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Theses/Dissertations from 2020

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The power of love: Four essays on the relationship between entrepreneurial passion and firm performance, Younggeun Lee

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Robotic instrument and automated imaging techniques to extract and count cysts and eggs of plant-parasitic nematodes from field soil, Christopher Michael Legner

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Understanding the structure-function relationship of Class II Diterpene Cyclases, Cody Lemke

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Evaluation of swine gestation-farrowing facility space and management for improving production, welfare, and infectious disease containment, Suzanne M. Leonard

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Role of diet and genetics on aging brain and cognition, Scott Le

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One hill I'm willing to die on: Moral conviction as a catalyst for advocacy on behalf of controversial health- and public-policy-related attitudes, Ann Marie Lewis

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A probabilistic approach for restoration optimization of transportation infrastructure assets in response to flood event damages, Benjamin Lichty

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Spatial cognitive implications of user interfaces in virtual reality and route guidance, Alex Floyd Lim

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Advances in reliability analysis and health prognostics using probabilistic machine learning, Meng Li

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Hunting wild stego images, a domain adaptation problem in digital image forensics, Li Lin

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Design characteristics of culturally-themed luxury hotel lobbies in Las Vegas: Perceptual, sensorial, and emotional impacts of fantasy environments, Qingrou Lin

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A simple bandgap reference based on VGO extraction with single-temperature trimming, Pangzhou Li

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Nanoscale modulation of friction and triboelectrification with application to electrohydrodynamic nanolithography, Qiang Li

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Surface textures for stretchable capacitive strain sensors, Han Liu

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An IoT-enabled paper sensor platform for real-time analysis of isothermal nucleic acid amplification tests, Mingdian Liu

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Design techniques to improve analog and mixed-signal circuits performance, Nanqi Liu

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Innovation, market valuations, policy uncertainty and trade: Theory and evidence, Xiaogang Li

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Understanding and integrating quantum chemistry byte by byte, Annabelle Lolinco

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Strengthening porcine reproductive and respiratory syndrome virus (PRRSV) detection in breeding herds: Development and assessment of processing fluids sampling strategies, Will Alberto Lopez Lopez

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Modeling the diffusion of information, the efficiency of online advertising, and the adoptions and repeat purchases of technological products, Aslan Lotfi

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Molecular mechanisms of Pyk2 regulation, Hanna S. Loving

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Conditions for the existence of quantum error correction codes, Daniel Mark Lucas

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College students’ produce handling attitudes, practices, beliefs, and knowledge at home and workplace, Boya Luo

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Essays on differentiated products in oligopoly markets, Jinjing Luo

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Movement and survival of Canada geese in Iowa, Benjamin Luukkonen

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Intraday information diffusion on nonsimultaneous trading, Chenzi Lv

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Dominant themes in sports wagering state legislation following the Supreme Court ruling on the Professional and Amateur Sport Protection Act of 1992, Michael Lynch

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Small area prediction and big data visualization: Analysis of soil losses from sheet and rill erosion on cropland, Xiaodan Lyu

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Effects of live-release tournament regulation changes for an Iowa Largemouth Bass population, Brandon Cole Maahs

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Zinc to the sink: Genetics of increased Zn in maize kernels, Edna Kemunto Mageto

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Hydrogeology and groundwater geochemistry of two glacigenic aquitard/aquifer systems in north-central and south-central Minnesota, Anna-Turi Maher

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Positive and energy stable schemes for Poisson-Nernst-Planck equations and related models, Wumaier Maimaitiyiming

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Stability analysis of non-holonomic inverted pendulum system, Sayani Maity

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Racial discrimination, ethnic-racial socialization, depression, and educational attainment in a longitudinal study of African American youth, Jennifer L. L. Major

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Smart thermostats in rental housing units: Perspectives from landlords and tenants, Diba Malekpour Koupaei

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Environment-by-design: Developing artificial soil for root phenotype, Lin Ma

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Intersectional digital rhetoric pedagogy: Queer & trans people of color and digital platform engagement, Lauren Ashley Malone

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Creation of graphite surface defects via ion bombardment: The origin of active portals and their role in encapsulation of metal nanoparticles, Michael William Manley

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Synthetic data generation for deep learning model training to understand livestock behavior, Armin Maraghehmoghaddam

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Phylogenetic comparison measurements and their application towards the accurate inference of evolutionary histories, Alexey Markin

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Inauditus materials processing through surface asymmetries, Andrew Martin

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Mathematics reborn: Empowerment with youth participatory action research EntreMundos in reconstructing our relationship with mathematics, Ricardo Martinez

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Resilience-oriented design and proactive preparedness of electrical distribution system, Shanshan Ma

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Forces of nature: An environmental history of Inkpaduta's 1857 attack on Spirit Lake, Kevin Timothy Mason

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Professional psychologists and mental health stigma: Exploring a complicated relationship, Lily Mathison

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The Black woman student experience: Black identity, activism, and fashion on the college campus, Dyese Matthews

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Differences between severe and non-severe warm-season nocturnal bow echo environments, Ezio- Luca Mauri

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Nanoparticle encapsulation to enhance seed treatment efficacy against Fusarium graminearum, Fernando Mauri Marcos

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Stewarding stolen lands: Decolonizing conservation organizations, Elizabeth McAllister

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Mechanics of blast-induced traumatic brain injury in porcine brain tissue, Annastacia McCarty

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The effect of parent anxiety and emotion regulation on parenting behaviors, Bethany Hope McCurdy

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Interpretability of configurable software in the biosciences, Mikaela Cashman McDevitt

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Improving the design of saturated riparian buffers for removing nitrate from subsurface drainage, Andrea Rae McEachran

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Deciding to wait: Exploring the lived experiences and relationship processes among African American couples who remained sexually abstinent until marriage, Emily Nanci McKnight

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Mechanistic dissection of stress mitigation imparted by the maize epidermis, Colton McNinch

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The role of psychological ownership on satisfaction and loyalty: The moderating effect of group identity, Fredrick C. Meitner

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Study of dynamics and nanosegregation in ionic liquids and deep eutectic solvents by fluorescence correlation spectroscopy, Deyny Leticia Mendivelso-P?rez

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Examination of phenological responses to environmental changes and improvement of phenological modeling, Lin Meng

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Exploring design considerations of acute care for the elderly to improve patient outcomes, Holle Michoski

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The will and the skill: The training effects of virtual reality and gaming, Andreas Miles-Novelo

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Perceptions of cost categories and benefits of implementing Future Education Model in dietetics, Janet Sue Millikan

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Application of deep learning and machine learning workflows for field-scale phenotyping, Seyed Vahid Mirnezami

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Effects of incubation temperature on genome-wide DNA methylation and expression of sexual development genes in the painted turtle, Chrysemys picta, Beatriz Akemi Mizoguchi

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Development of a life-cycle cost analysis tool for improved maintenance and management of bridges, Andrew Mock

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Estimating the repeatability and reproducibility of subjectively evaluated feet and leg soundness traits in growing replacement gilts, Grace Amelia Moeller

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The role of adults in the development of a Gay-Straight Alliance in an urban middle school, Quentin Carver Moen

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Mechanotransduction: Cellular dynamic mechanical behavior quantification and control, Keyvan Mollaeian

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Distributed public key based computing: The super virtual computer, Zachary Monaghan

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Application of plasmonic devices in spectroscopy and biomedical studies, Hosein Monshat

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Experimental and field studies on Porcine hemagglutinating encephalomyelitis virus, Juan Carlos Mora Diaz

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Persistent preconceptions: The role of implicit weight stigma in belief perseverance, Curt More

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Distinguishing initiation from maintenance in the Integrated Behavior Change Model, Kimberly Rae More

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Returning to the earth, Daniel Morley

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Conservation plans and targeted conservation: Investigating two approaches to improving farmer practice adoption, Jason Christopher Morris

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Variations on the power domination problem: Hypergraphs and robustness, Beth Ann Bjorkman Morrison

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The SUPr Algorithm, Ian Mouzon

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PhyloVirus: Inferring virus reassortment, and a visualization tool for phylogenetic networks (Development and Usability Study), Fathi Mubaraki

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Multi-scale computational studies of heterochromatin protein-1, Jazelli Lenae Mueterthies

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Rational design of antimicrobial nanomedicines, Adam Steven Mullis

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Impact of seasonally changing variables on structural capacity and functional property of pavement, Maroa Mumtarin

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The benevolent dictator of North Dighton: A case study in welfare capitalism, Kelsey Lynn Murphy

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Characterizing the specificity and nicking activity of CRISPR endonucleases, Cas9 and Cas12a, Karthik Murugan

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Empowering the U.S. Virgin Islands' food industry through food safety education, Lillian Nabwiire

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An investigation of droplet growth and phase separation in an oil and water emulsion under controlled shear and temperature conditions, Hannan Nadeem

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A comparative analysis of Listeria monocytogenes plasmids: Presence, contribution to stress and conservation, Annabel Naditz

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Watershed modeling and random forest flood risk classification of farmed prairie potholes, Brady Nahkala

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Evaluation of deep tillage remediation in a construction easement on soil compaction and crop yield, Erica Rae Neideigh

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Behavior intervention plan implementation fidelity, Jillian Nelson

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Evolution of gene blocks in bacteria using an event-based model, Huy Nguyen

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Gauging food provisioning, social and economic benefits of community farms for Iowa's immigrant community, Thanh Ngoc Nguyen

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Provable surrogate gradient-based optimization for unsupervised learning, Thanh Van Nguyen

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Approximate query processing in a data warehouse using random sampling, Trong Duc Nguyen

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Discovering interacting features for prediction of response, Maryam Nikouei Mehr

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Assessment of aflatoxin presence in the Rwandan feed and milk value chains and mitigation potential using high voltage atmospheric cold plasma, Kizito Nishimwe

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Linear aspects of equational triality in quasigroups, Alex William Nowak

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Improved porcine reproductive and respiratory syndrome virus surveillance in swine breeding herds, Marcelo Nunes de Almeida

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Directional Raman spectroscopy: A surface-sensitive tool for measuring the chemical, optical, and physical properties of adsorbates on metal surfaces, Charles Kofi Adarkwa Nyamekye

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Ionic liquids and deep eutectic solvents as gas chromatographic stationary phases for separation and characterization, Gabriel Odugbesi

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Motor vehicle crashes and the urban built environment: A case study of a region in Des Moines, Dorcas Okailey Okaidjah

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Innovations in latent fingerprint analysis for forensic applications with matrix assisted laser desorption/ionization mass spectrometry imaging, Kelly C. O'Neill