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 [15445]
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Masters Theses [20501]
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Undergraduate Theses [30]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Integration Challenges In High Power Density Wide Bandgap Based Circuits for Transportation Applications
(Virginia Tech, 2021-12-03)Because of the increasing emphasis on environmental concerns, there has been a growing demand for lower fuel consumption in modern transportation applications. To reduce fuel comsumption, higher efficiency, higher power ... -
Generalizability and Reproducibility of Search Engine Online User Studies
(Virginia Tech, 2020-06-11)Research in interactive information retrieval (IR) usually relies on lab user studies or online ones. A key concern of these studies is the generalizability and reproducibility of the results, especially when the studies ... -
Set in Stone: Rhetorical Performances in Virginia Tech's April 16th Memorial
(Virginia Tech, 2020-06-11)This dissertation traces the rhetorical history of Virginia Tech's April 16th Memorial from its earliest appearance immediately following the April 16, 2007 shootings up to its present iteration as a permanent memorial on ... -
Not All Adversity is Created Equal: Differential Associations of Adversity Profiles with Adolescent Cognitive Control and Psychopathology
(Virginia Tech, 2020-06-11)Adverse experiences have long-term consequences for biological, behavioral, and psychosocial adjustment. Adolescents may be particularly susceptible to these effects due to heightened sensitivity to environmental influences, ... -
Ruin and Ruination, A dialogue with the ghosts of the city
(Virginia Tech, 2021-12-02)There are contradictory thoughts associated with ruins. Mainly when we hear the word ruin, it reminds us of glorious ancient structures that evoked an aesthetic pleasure and inspired artists and philosophers throughout the ... -
The Relationship Between School Climate and Student Achievement at the Elementary School Level
(Virginia Tech, 2021-12-02)In the past decade, teachers and researchers have gradually recognized the vital role school climate plays in the public-school setting (Thaps, Cohen, Guffey, and Higgins-D'Alessandro, 2013). One of the greatest indicators ... -
The Perceptions of Mentors on the Impact of a School-Based Mentoring Program in a Diverse Public-School Division in Virginia
(Virginia Tech, 2021-12-02)The purpose of this study was to determine the perceptions of mentors regarding the impact of a school-based mentoring program and to identify which research-based best practices were used to achieve these impacts. School ... -
Data Analysis of an Unsteady Cavitating Flow on a Venturi-type Profile
(Virginia Tech, 2021-12-01)The instability modes and non-linear behavior of a cavitating flow have been studied based on the experimental data obtained from planar Particle Image Velocimetry (PIV). Three data-driven techniques, Proper Orthogonal ... -
Children of Prometheus
(Virginia Tech, 2021-12-01)The superhuman is a notion of mankind's relationship between himself and his tools. This bound condition of dependence with ingenuity both liberates his body from mortal perils and binds him to indefinite dependence with ... -
Nanolaminated Plasmonics: from Passive to Active Nanophotonics Devices
(Virginia Tech, 2020-06-09)Plasmonics can achieve the tight optical confinement and localization in the subwavelength domain. Surface plasmon polaritons (SPPs) are closely related to coupling to emitters in excitation and emission, waveguiding, and ... -
Evaluating Changes in Terrestrial Hydrological Components Due to Climate Change in the Chesapeake Bay Watershed
(Virginia Tech, 2020-06-09)A mesoscale evaluation is performed to determine the impacts of climate change on terrestrial hydrological components and the Net Irrigation Water Requirement (NIWR) throughout the Chesapeake Bay watershed in the mid-Atlantic ... -
"Ew, Ew, the Body!": Submerged Racialization in American 21st-Century Children's Animation
(Virginia Tech, 2020-06-09)In this thesis, I analyze the Minions from Universal Pictures' Despicable Me franchise (2010-2020), Olaf from Disney's Frozen franchise (2013-2019), and Ducky and Bunny from Pixar's Toy Story 4 (2019). Although these ... -
Modulation of RNA Cytosine-5 Methylation by Neuronal Activity and Methyl-donor Folate
(Virginia Tech, 2020-06-09)RNA epigenetics or Epitranscriptomics has emerged as a new field for understanding the post-transcriptional regulation of gene expression by RNA modifications. Among numerous types of RNA modifications, RNA cytosine-5 ... -
Interleukin-6 Supplementation Improves Post-Transfer Embryonic and Early Fetal Development of in vitro Produced Bovine Embryos
(Virginia Tech, 2020-06-09)In vitro produced (IVP) bovine embryos are useful for investigating the mechanisms affecting early embryonic failure. The work in this thesis explored how interleukin-6 (IL6), an embryokine that increases inner cell mass ... -
Effect of probiotics or high incubation temperature on gene expression and cell organization of the small intestine and yolk sac of chicks
(Virginia Tech, 2021-11-30)The small intestine and yolk sac (YS) are important organs for nutrient absorption and innate immunity in chickens during the post-hatch or prehatch periods. These organs share a similar structure of epithelial cell-lined ... -
Preliminary Design of an Improved Load Measuring Device for Underground Mining Standing Supports
(Virginia Tech, 2021-11-30)Standing support is often used in conjunction with underground retreat mining. Knowledge of the load-displacement behavior of a standing support and loading induced by the mine opening is critical proper support selection. ... -
Adaptive control of a DDMR with a Robotic Arm
(Virginia Tech, 2021-11-30)Robotic arms are essential in a variety of industrial processes. However, the dexterous workspace of a robotic arm is limited. This limitation can be overcome by making the robotic arm mobile. Such robots, which comprise ... -
Preference Construction and Decision-Making for Green Infrastructure: How Do Behavioral Interventions Influence Choice and Neurocognition?
(Virginia Tech, 2021-11-30)"Nature-based solutions", such as green stormwater infrastructure, take advantage of natural systems to tackle the increasing challenges facing the built environment. Green infrastructure is effective in reducing stormwater ... -
Development of Implantable Optical Fibers for Immunotherapeutics Delivery and Tumor Impedance Measurement
(Virginia Tech, 2021-11-30)Immune checkpoint blockade antibodies have promising clinical applications but suffer from disadvantages such as severe toxicities and moderate patient-response rates. None of the current delivery strategies, including ... -
Integrating Genomic and Phenomic Breeding Selection Tools with Field Practices to Improve Seed Composition Quality Traits in Soybean
(Virginia Tech, 2021-11-30)Despite soybean's widespread recognition as a versatile and valuable crop due to many end-use purposes, breeders seek to develop varieties with improved nutritional and functional components that capture added-value for ...
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