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.

Browse Electronic Theses and Dissertations by Academic Department

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Browse Electronic Theses and Dissertations by Year of Completion

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Theses/Dissertations from 2020

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Short-term effects of integrated tillage systems and cover crop on agronomic response and soil health in North Central Iowa, Alex Mitchell Cleveringa

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Evaluation of the use of alternative materials in pavement foundation layers, Haluk Sinan Coban

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Encouraging soil health practices: The influence of identity, norms, and language on soil health behaviors of Iowa farmers, Denise D. Coberley

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Analysis of a precast concrete barrier subjected to varying loads, Kenneth Coblentz

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Monitoring antibiotic resistance in agroecosystems, Phil John Colgan

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Physical activity needs, preferences, perceptions, and current practices of community residing older adults, Annette Elise Contrady

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Characterization of oxidation layers on novel nuclear fuel cladding alloys, Trishelle Marie Copeland-Johnson

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Genetics and genomics of vulva traits and their relationship with first-parity performance in pigs, Flor-Anita Corredor

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Hurricane Florence and disaster preparedness: Investigating risk through the intersections of technical communication and user experience, Samantha Jo Cosgrove

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Bayesian hierarchical modeling for the forensic evaluation of handwritten documents, Amy Crawford

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The influence of regular physical activity on affective and mood state response to acute moderate intensity exercise in adults with major depressive disorder, Gabriel Cruz Maldonado

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Trim line: Essays and stories, Brendan Curtinrich

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Statistical analysis of queueing problems using real data, Dong Dai

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Factor models for big data, Fan Dai

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Reassessment of late quaternary bison diminution on the Great Plains of North America, Daniel Martin Dalmas

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NIR hyperspectral imaging for animal feed ingredient applications, Princess Tiffany Galaura Dantes

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Mapping of key traits in maize (Zea Mays L.) doubled haploid technology, Arthur Da Silva

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The nature of double-fed induction generators for frequency and voltage support from wind turbines, Nicholas David

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Food security, diet quality, and nutrition knowledge of adult male food pantry users in Story County, Iowa, Elizabeth Davitt

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Intestinal organoids as new treatments for inflammatory bowel disease, Zahra Davoudi

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Slaveholders’ Paradise: Conceptions of heaven in antebellum southern Presbyterian thought, Matthew Dawdy

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Hydrodynamic cavitation for scalable exfoliation of few layered graphene nanosheets, Steven Hiran De Alwis

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Causes and consequences of variation in maternal investment strategies, David Delaney

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Compatibility testing for rooted phylogenetic trees, Yun Deng

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Metabolomic characterization and quantitative genetic dissection of cuticular surface lipid accumulation on the stigmatic surfaces of maize, Tesia Dennison

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Who’s at the kitchen table?: A study rearticulating kitchen-table educator-activism and reclaiming black Iowa women’s educator identity, Madison DeShay-Duncan

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Nutritional modulation of oxidative stress in beef steers during the feedlot receiving period: A focus on transit stress, Erin L. Deters

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Impact of boom height sensor placement and quantity on boom height error, Mark Deutsch

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School meal or packed lunch: What are the motivators?, Sarah L. Dhillon

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Lying and memory in forensic interviews: The influence of voluntary deception and repeated interviews on memory for the truth, Rachel Elizabeth Dianiska

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Evaluation of the slope stability of streambanks at saturated riparian buffer sites, Loulou Claire Dickey

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Improved pretensioning procedures for anchor bolt connections in sign, luminaire, and traffic signal structures, Zachary Dietrich

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Semantic relatedness in L2 vocabulary learning: Does it really matter?, Brody Dingel

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Winter annual alternative crops for enhanced sustainability in Iowa cropping systems, Gunnar Dinkla

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Characterization of the C-terminal binding domain from bacterial Enzyme I, Rochelle Rea Dotas

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Understanding intuitive gestures in wearable mixed reality environments, Karen Marie Doty

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A valley so sweet: Community and market development in the antebellum Midwest, Wayne Duerkes

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Investigating serviceability issues related to thermal movement accommodation in bridges, Conor Duffy

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Three papers in regional dynamics and panel econometrics, Kevin Davey Duncan

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Model checking large design spaces: Theory, tools, and experiments, Rohit Dureja

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The effect of automated fluency feedback on written text production, Emily Nicole Dux Speltz

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The rhetoric of real and fictional space in Ralph Ellison's Invisible Man, Brittany Eide

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Transformative technology, transformative streets: Gas lighting and nineteenth-century written representations of space, Tiffany Michelle Eide

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Investigation of plastic shrinkage cracking in fiber-reinforced concrete and shrinkage-compensating cement concrete, Jordan Cornelius Eikamp

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Digital forensic imaging: A quasi-experimental comparison of simulator to traditional training, Douglas G. Elrick

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Understanding the variation in vegetation composition of prairie restorations within crop fields, Lydia English

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"Before drugs it's almost like I didn't exist" Contextualized drug narratives: Structure, stories and identity, Jacob H. Erickson

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Microscale modeling of phase transformations and plasticity, Seyyed Ehsan Esfahani Rashidi

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Visual literacy education: Developing a curriculum for designers and non-designers, Vitoria Faccin-Herman

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Fracture risk of braces in ductile concentrically braced frames, Mahmoud Faytarouni

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MEMS aptamer sensors for detecting plant chemicals, Silu Feng

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A multi-spatial scale analysis of land use and climate change impacts on water quality and crop productivity for major US cropping systems, Kelsie M. Ferin

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Novel consolidation methods of Fe-base oxide dispersion strengthened powders produced via gas-atomization reaction synthesis, Rebecca Fer

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Electrical characterization of 316L metal powder used in additive manufacturing, Joseph Talbot Filbert

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Implementation of network moving target defense in embedded systems, Robert Keith Finstad

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Investigating a finite element model for acoustic field-assisted particle patterning – applications in additive manufacturing of polymer composites, Michael Flannery

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Understanding soil bacterial communities for sustainable agriculture, Jared S. Flater

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The influence of leadership behaviors and hospitality culture on the perception of internal service quality delivered in hotels, Jennifer L. Forney

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Evaluation of diagnostic tools for naturally occurring lameness in swine, Anna Forseth

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Shifty protons and wandering electrons, Eliscia Fought

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Investigations of the oxidative stability of rendered protein meals and their suitability as feed ingredients, Carl Albert Frame

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Confronting America's dam problems, Maria Teresa Freeman

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Empathic decision-making: Is well-intentioned help effective?, Pauline R. Freud

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Interpersonal sensitivity and well-being: Investigating relatedness and motivation as potential mediators, Elise A. Frickey

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Increased biosecurity in feed manufacturing through effective hydrothermal treatment and recontamination prevention during drying, cooling and handling, Michelle Ann Friedmann

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Things best forgotten, Jack Daly Friend

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Exploring the organizational emergence of academic leadership programs, Katherine L. Friesen

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Power or progress: What terrorist group leaders really want, Samantha A. Fuller

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The association between Whisper ® lung scores and feedlot performance in crossbred calves, Jenna Funk

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Navigation control of a robotic vehicle for field-based phenotyping, Jingyao Gai

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Technical communication as design: A design pedagogy study, Philip Brandon Gallagher

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The shadow aberrant, Jon Michael Galletley

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Sensitivity of boundary layer characteristics and related low-level jet behavior to planetary boundary layer schemes in the WRF for several MCS cases, Michael Garberoglio

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Robotic batting and motion estimation of objects in free flight, Matthew Gardner

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Real-time generalized convolutional neural network for point cloud object tracking, Timothy Garrett

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Score-based likelihood ratios and sparse Gaussian processes, Nathaniel Morrissey Garton

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Human trafficking in the hospitality industry: Employee awareness, beliefs and training, Marilyn Lea Gasienica

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A cybermanufacturing framework incorporating deep learning and multi-resolution voxel representations, Sambit Ghadai

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Sequential decision making and simulation-optimization for the design of complex engineering systems, Ramin Giahi

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An examination of the rhetoric surrounding gun violence in the United States through the voices of student activists, Danielle Nicole Giles

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Shards & Scraps: A reflection on personal connections to glass vessels and food, Sarah Ann Godfrey

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Development and evaluation of a spoken dialog system-mediated paired oral task for measuring second language oral communication ability in English, Nazlinur Gokturk Tuney

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Additive printing for civil infrastructure: Assessing concrete mix design, printability and nozzle effects, Karthick Manikandan Gopalakrishnan Deivanai

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Evaluation of climate data sources and investigation of performance prediction models for mechanistic-empirical pavement designs, Leela Sai Praveen Gopisetti

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Real-time aerodynamic load estimation and aircraft prognostic control using distributed flush air data system (FADS) sensor network, Ruchir Goswami

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Looking for a bottleneck: Assessment of factors influencing post-stocking survival of advanced fingerling Walleye Sander vitreus, Emily E. Grausgruber

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The coronation, Cameron Gray

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Lost lake: A deep map of a farm field, Kristen A. Greteman

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Heinrich Himmler's solution to his homosexual question: Guiding the youth to resist temptation, Adam B. Grimm

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Full-wave modeling of ultrasonic scattering for non-destructive evaluation, Praveen Gurrala

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Application and analysis of preventive maintenance techniques: Chip seal and Otta seal, Sharif Yousif Gushgari

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Associations of step counts and aerobic stepping cadence with arterial stiffness in older adults, Leidys Gutierrez Martinez

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Design, implementation, and analysis of efficient tools based on PUFs for hardware security applications, Hala Hamadeh

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Semi-supervised learning algorithm to estimate mass flow from sparsely annotated images using a vision system (SLEM), Muhammad Hamdan

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Determining the effects of tire pressure and soil condition on the Brixius equations for predicting net tractive force, Austin Robert Hamm

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Motivations, challenges, benefits, and educational needs associated with organic grain farming adoption in Iowa, Guang Han

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Characterization of inorganic semiconductors by sensitivity-enhanced multidimensional solid-state NMR spectroscopy, Michael Patrick Hanrahan

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Novel methods for identification and quantification of iron fortificants in cereal flours, Nicole Clare Hanson

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Applications of harmonic analysis to topics in data science, Steven Nathan Harding

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The neural basis of the sense of fatigue, Mark Edward Hartman