ETDs: Virginia Tech Electronic Theses and Dissertations
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Virginia Tech has been a world leader in electronic theses and dissertation initiatives for more than 20 years. On January 1, 1997, Virginia Tech was the first university to require electronic submission of theses and dissertations (ETDs). Ever since then, Virginia Tech graduate students have been able to prepare, submit, review, and publish their theses and dissertations online and to append digital media such as images, data, audio, and video.
University Libraries staff are currently digitizing thousands of pre-1997 theses and dissertations and loading them into VTechWorks. Most of these theses and dissertations are fully available to the public, but we will, in general, honor requests by the item's author to restrict access to Virginia Tech only. See our process for Requesting that Material be Amended or Removed.
To search all Virginia Tech print and digital theses and dissertations, use the University Libraries ETD resource guide.
Materials that are restricted to Virginia Tech only may be requested via your own university or public library's Interlibrary Loan program or through the VTechWorks request form that appears when you try to access the item. You might also be able to obtain a copy of the work through ProQuest's database of theses and dissertations. If you are on a Virginia Tech campus but are unable to find the pre-1997 thesis or dissertation you are seeking in VTechWorks, you may also be able to order a physical copy from library storage. Please check the library catalog at http://www.lib.vt.edu/ for physical copies.
The guidelines that apply to Virginia Tech's graduate students as ETD authors can be found at http://guides.lib.vt.edu/ETDguide.
New! - Help video: Searching for Electronic Theses and Dissertations in VTechWorks
Collections in this community
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Doctoral Dissertations [16817]
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Masters Theses [22189]
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Virginia Tech ETD Resources [16]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Evaluating Conservation Agricultural Management for Soil Health Outcomes in Southeastern Virginia
(Virginia Tech, 2023)Improving soil health in agricultural soils is vital as the effects of climate change and an increasingly affluent population are putting a strain on land resources. Conservation agricultural practices such as cover cropping ... -
Detection of Acidovorax citrulli, the Causal Agent of Bacterial Fruit Blotch Disease of Cucurbits, Prevention via Seed Treatments and Disease Resistance Genes
(Virginia Tech, 2021-04-02)Melon (Cucumis melo L.) and watermelon (Citrullus lanatus (Thunb.) Matsum and Nakai) belong to the family Cucurbitaceae. Bacterial fruit blotch (BFB) disease of cucurbits is an economically devastating plant disease that ... -
Near-Net Shaping and Additive Manufacturing of Ultra-High Temperature Ceramics via Colloidal Processing
(Virginia Tech, 2023-09-22)Ceramic colloidal processing routes such as slip casting, gelcasting and direct ink writing provide valuable insight into the role of interaction forces between particles, solvents, and polymeric additives in the rheology, ... -
Observing Drought-Induced Crustal Loading Deformation Around Lake Mead Region via GNSS and InSAR: A Comparison With Elastic Loading Models
(Virginia Tech, 2023-09-22)Lake Mead, the largest reservoir in the United States along the Colorado River on the border between the states of Nevada and Arizona, is one of the nation's most important sources of freshwater. As reported by the U.S. ... -
A User-Centered Design Approach to Evaluating the Usability of Automated Essay Scoring Systems
(Virginia Tech, 2023-09-21)In recent years, rapid advancements in computer science, including increased capabilities of machine learning models like Large Language Models (LLMs) and the accessibility of large datasets, have facilitated the widespread ... -
Seismic Imaging of the Global Asthenosphere using SS Precursors
(Virginia Tech, 2023-09-21)The asthenosphere, a weak layer beneath the rigid lithosphere, plays a fundamental role in the operation of plate tectonics and mantle convection. While this layer is often characterized by low seismic velocity and high ... -
Genome-wide identification of enhancers, transcription factors, and mechanisms that control skeletal muscle differentiation in cattle
(Virginia Tech, 2023-09-21)Skeletal muscle development and growth involve significant changes in gene expression. The overall objective of this dissertation project was to identify transcription factors, enhancers, and mechanisms that control gene ... -
Interacting effects of temperature and food on early growth of two plethodontid salamanders
(Virginia Tech, 2023-09-19)An amphibian's life history includes patterns such as growth, development, and reproduction. These life history traits are essential to the fundamental understanding of population dynamics. Despite the importance of life ... -
Methodological advances in benefit transfer and hedonic analysis
(Virginia Tech, 2023-09-19)This dissertation introduces advanced statistical and econometric methods in two distinct areas of non-market valuation: benefit transfer (BT) and hedonic analysis. While the first and the third chapters address the challenge ... -
Analysis of Environmental-Ethical Concerns Within the United States Funeral Industry
(Virginia Tech, 2023-09-18)This thesis examines the failings in environmental-ethics present in the United States funeral industry, focusing on the lack of environmental ethical guidelines at an industrial and policy level. Utilizing an interdisciplinary ... -
Vertically Propagating Tides in the Martian Atmosphere
(Virginia Tech, 2023-09-18)Atmospheric tides significantly influence the dynamics of Mars' upper atmosphere. The impact of tides on the mean state of the present-day Martian atmosphere is especially large at high altitudes. Certain tides can propagate ... -
Optimal weight settings in locally weighted regression: A guidance through cross-validation approach
(Virginia Tech, 2023)Locally weighted regression is a powerful tool that allows the estimation of different sets of coefficients for each location in the underlying data, challenging the assumption of stationary regression coefficients across a ... -
Dysregulation of Noncanonical NF-κB Signaling in Gastrointestinal Diseases
(Virginia Tech, 2023-09-01)Regulation of host health is intricately coordinated by a diverse interplay of immune cells detecting assaults from pathogens via recognition of pathogen associated molecular patterns (PAMPs) to mount an immune response, ... -
Development of A Trajectory Population Data and its Application in CAV Research
(Virginia Tech, 2023-09-15)Vehicle trajectory data has played a critical role in the recent history of traffic flow and CAV operations-related studies. However, available trajectories have limited coverage, either spatial or temporal. The implementation ... -
A Lacanian Ideology Critique of Gender in Mathematics Education
(Virginia Tech, 2023-09-14)In this study I employ Lacanian psychoanalysis and ideological criticism to analyze the development of "gender and mathematics" research over the past fifty years. This study is motivated by the original Marxist-Lacanian ... -
A Compact Three-Phase Multi-stage EMI Filter with Compensated Parasitic-Component Effects
(Virginia Tech, 2023-09-14)With the advent of wide bandgap (WBG) semiconductor devices, the electromagnetic interference (EMI) emissions are more pronounced due to high slew rates in the form of high dv/dt and high di/dt at higher switching frequencies ... -
Supporting Digital Conservation through Mediated Communication on the Appalachian Trail
(Virginia Tech, 2023-09-14)Spanning 14 states in the northeast United States, the Appalachian Trail (AT) is a popular destination for outdoor recreation, with thousands of individuals attempting to thru-hike the AT every year. For its scenic views ... -
Gatekeeper Connexin43 Phosphorylation Events Regulate Cardiac Gap Junction Coupling During Stress
(Virginia Tech, 2023-09-13)Rapid and well-orchestrated action potential propagation through the myocardium is essential to each heartbeat. Gap junctions comprising primarily Cx43 reside within the intercalated discs connecting cardiomyocytes, effecting ... -
The Poetic Architect: An Imaginative Journey of Bruce Goff's Bavinger House
(Virginia Tech, 2023-09-13)During the 1920s, the Midwestern American architect Bruce Goff advanced a unique design approach that would govern his career: "Good architecture for everyone." Following the First World War, this period is considered the ... -
Evaluation of Computational and Experimental Parameters in RNA Bisulfite Sequencing Analysis and Applications in Brain Development Studies
(Virginia Tech, 2023-09-13)Epitranscriptomics, the study of RNA modifications, has become a hotspot of research over the last decade. Over 170 unique modifications have been discovered with a widespread occurrence in a diverse range of RNAs. ...
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