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 [14900]
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Masters Theses [19642]
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Undergraduate Theses [27]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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An Architecture of Belonging
(Virginia Tech, 2021-02-23)As the placeless globalization is accelerating around the world and especially in China, places that have strong ties to the particularities of a locale are desirable destinations to escape the generic monotony of placeless ... -
Representation Learning Based Causal Inference in Observational Studies
(Virginia Tech, 2021-02-22)This dissertation investigates novel statistical approaches for causal effect estimation in observational settings, where controlled experimentation is infeasible and confounding is the main hurdle in estimating causal ... -
Posttraumatic Stress Disorder Vulnerability in Women: The Neuropsychological Impact of Emotional Trauma from Rape
(Virginia Tech, 2019-08-30)The current experiment aims to integrate the neuropsychological and physiological consequences of rape trauma and physical restraint. Given the preponderance of rape on college campuses, it is important for continued ... -
Road Diets and Greenways: Barriers and Strategies for More Innovative Infrastructure
(Virginia Tech, 2021-02-19)Decision-makers for road and stormwater infrastructure across America are faced with numerous problems that require immediate action. These decision-makers are faced with an option when the time arises to consider alternatives ... -
Dynamics of Multi-functional Acoustic Holograms in Contactless Ultrasonic Energy Transfer Systems
(Virginia Tech, 2020-08-28)Contactless ultrasonic power transfer (UPT), using piezoelectric transducers, is based on transferring energy using acoustic waves, in which the waves are generated by an acoustic source or transmitter and then transferred ... -
Half-Heusler Thermoelectric Materials and Modules
(Virginia Tech, 2019-08-29)High temperature waste heat recovery has been gaining attention in recent years as it forms one of the largest sources of available energy. A rapid development of thermoelectric (TE) materials that can directly convert ... -
Self-Identified Professional Development Needs of Virginia Career and Technical Education Teachers
(Virginia Tech, 2021-02-18)Improving teacher quality is an effective strategy for improving student outcomes. For professional development to be effective at changing student practice and improving student outcomes the professional development topic ... -
A Geodynamic Investigation of Continental Rifting and Mantle Rheology: Madagascar and East African Rift case studies
(Virginia Tech, 2021-02-18)Continental rifting is an important geodynamic process during which the Earth's outer-most rigid shell undergoes continuous stretching resulting in continental break-up and theformation of new oceanic basins. The East ... -
Common and Distinct Neural Mechanisms of Fear Acquisition and Reversal in comorbid Autism with Social Anxiety and Social Anxiety Disorder uncomplicated by Autism
(Virginia Tech, 2019-08-28)Social Anxiety (SAD) increases in prevalence as children enter adolescence. Adolescents with Autism Spectrum Disorder (ASD) are diagnosed with comorbid SAD at higher rates than these individuals are diagnosed with other ... -
Synthesizing a Heparin Mimic Material Derived from Cellulose Nanocrystals
(Virginia Tech, 2018-08-27)To prevent clotting during dialysis, heparin is used to line the tubing which blood flows through. Unfortunately, many side effects arise from taking heparin, especially when it is used for an extended period of time. As ... -
The combined effects of fertilization and relative water limitation on tissue water relations, hydraulic parameters and shallow root distribution in loblolly pine (Pinus taeda L.)
(Virginia Tech, 2019-08-27)One goal of this research was to characterize shoot tissue-level responses in loblolly pine to soil moisture limitation in combination with fertilization as well as to more severe soil moisture limitation. We found that ... -
Evaluating the interactions of crop management, carbon cycling, and climate using Earth system modeling and remote sensing
(Virginia Tech, 2019-08-27)Crop management practices, such as soil tillage and crop residue management, are land management activities with potentially large impacts on carbon (C) cycling and climate at the global scale. Improvements in crop management ... -
A Study on Heterotic Target Space Duality – Bundle Stability/Holomorphy, F-theory and LG Spectra
(Virginia Tech, 2019-08-26)In the context of (0, 2) gauged linear sigma models, we explore chains of perturbatively dual heterotic string compactifications. The notion of target space duality (TSD) originates in non-geometric phases and can be used ... -
Propolis: Immersive Environment
(Virginia Tech, 2021-02-15)Propolis – Creating and using an immersive 2D honey bee environment to educate children between the ages of 3-10, about the importance of honey bees. This capstone project will showcase this researcher's skills in graphic ... -
Experimental Evaluation of the Dynamic Performance Benefits of Roll Stability Control Systems on A-train Doubles
(Virginia Tech, 2018-02-09)The ride stability of an A-train 28-foot double tractor trailer when outfitted with different Roll Stability Control (RSC) systems with the same payload and suspension configurations is studied experimentally for various ... -
To What Extent Do Ride-Hailing Services Replace Public Transit? A Novel Geospatial, Real-Time Approach Using Ride-Hailing Trips in Chicago
(Virginia Tech, 2021-02-11)Existing literature on the relationship between ridehailing (RH) and transit services is limited to empirical studies that rely on self-reported answers and lack spatial and temporal contexts. To fill this gap, the research ... -
The Economics of management effort in planted forests: an empirical analysis of fertilization and thinning prescriptions of Pinus taeda in the US South
(Virginia Tech, 2021-01-06)If a landowner‘s main objective is to maximize his/her profits from planted forest investments, questions such as when and where exactly they should fertilize, thin and clearcut must be answered. We take advantage of an ... -
Exchange and superexchange interactions in quantum dot systems
(Virginia Tech, 2021-02-10)Semiconductor quantum dot systems offer a promising platform for quantum computation. And these quantum computation candidates are normally based on spin or charge properties of electrons. In these systems, we focus on ... -
Exploring Design Thinking for Instructional Practice
(Virginia Tech, 2021-02-10)This dissertation entitled, Exploring Design Thinking for Instructional Practice, is situated in the cognitive rigor of design thinking instructional practice and engineering design-based capstone courses. The content of ... -
Challenges to Effective Realism
(Virginia Tech, 2019-08-20)That a theory is merely effective has historically counted against it, especially in pro-realism discourse. For example, many realists take the interpretation of a theory to amount to specifying what the world would be ...
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