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 [16363]
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Masters Theses [21565]
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Virginia Tech ETD Resources [14]
Documentation about creating and formatting Virginia Tech ETDs
Recent Submissions
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Temporary urban regeneration: a systematic approach for a multi-system life cycle assessment
(Virginia Tech, 2023-02-07)This research attempts to evaluate temporary urban regeneration potential by integrating two systems that make up an interim intervention which addresses an observed problem. The research proposes a systematic approach for ... -
Modeling Middle Grade Students' Algebraic and Covariational Reasoning using Unit Transformations and Working Memory
(Virginia Tech, 2023-02-07)Quantitative reasoning permeates mathematical thinking, and mathematics education researchers have taken a quantitative reasoning approach to examining and modeling students' mathematical thinking and development in various ... -
Spatial Implications of Flood Exposure and Relocation Attitudes among Older Populations in Hampton Roads, VA
(Virginia Tech, 2023-02-07)Coastal communities along the eastern seaboard are continuously exposed to flooding and related impacts, compromising the health and safety of their residents and especially of more vulnerable older populations. In cases ... -
Evaluating the inclusion of alfalfa hay in diets fed to pregnant and non-lactating Holstein cows during the prepartum period
(Virginia Tech, 2023-02-07)The study objectives were to determine the dry matter intake, urine pH, Ca concentration in blood, Ca output in urine, and incidence of hypocalcemia from pregnant, non-lactating dairy cows during the prepartum period ... -
Design and implementation of Silicon-Carbide-based Four-Switch Buck-Boost DCDC Converter for DC Microgrid Applications
(Virginia Tech, 2023-02-07)With the increasing demand for clean and renewable energy, new distribution network concepts, such as DC microgrids and distributed power generation networks, are being developed. One key component of such networks is the ... -
Evaluation of Alternative Control Methods for Eliminating Insecticide-Resistant Bed Bugs (Cimex lectularius L.)
(Virginia Tech, 2023-02-07)The common bed bug, Cimex lectularius L, has been a persistent pest of humans. Conventional pyrethroid-formulation insecticides are known to be ineffective for controlling modern bed bug populations. This study evaluates ... -
A Coordinated Voltage Management Method Utilizing Battery Energy Storage Systems and Smart PV Inverters in Distribution Networks with High PV and Wind Penetrations
(Virginia Tech, 2021-08-16)Electrical distribution networks face many operational challenges as various renewable distributed generation (DG), such as solar photovoltaic (PV) systems and wind, become part of their structure. Unlike conventional ... -
Development of a Self-Calibrating MEMS Pressure Sensor Using a Liquid-to-Vapor Phase Change
(Virginia Tech, 2021-08-16)A growing industry demand for smart pressure sensors that can be quickly calibrated to compensate for sensor drift, nonlinearity effects, and hysteresis without the need for expensive equipment has led to the development ... -
The Role of Distress Tolerance and Emotion Regulation in the Health Risk Behaviors of College Students with and without ADHD
(Virginia Tech, 2022-10-28)Emerging adulthood is a developmental period associated with increased engagement in health risk behaviors, particularly in college students with attention-deficit/hyperactivity disorder (ADHD), a disorder characterized ... -
Childhood Maltreatment is Associated with Adult Depression: Is Inflammation to Blame?
(Virginia Tech, 2022-12-12)By 2030 major depression is predicted to be the leading cause of disease burden in the world; as such, it is critical to understand factors that contribute to the development of depression. The social signal transduction ... -
Longitudinal Associations between Peer Victimization and Positive and Negative Risk Taking in Adolescence and Young Adulthood
(Virginia Tech, 2022-12-13)Adolescence is a developmental period characterized by an increase in risk taking. However, this is not always adverse, as risks can be classified as both positive and negative. Adolescence is also a period of time in which ... -
Patient Compliance of Patient Reported Outcome Measures in Measurement-Based Care After an Abrupt Shift to Telehealth During COVID-19
(Virginia Tech, 2023-02)Measurement Based Care (MBC) is considered to be an evidence-based practice. Despite its well-documented efficacy, it is underutilized in the clinical community for various reasons, including clinician and patient buy-in. ... -
Effects of Solar Soft X-rays on Earth's Atmosphere
(Virginia Tech, 2023-02-06)The soft x-rays (wavelengths less than 30 nm) emitted by the sun are responsible for the production of high energy photoelectrons in the D and E regions of the ionosphere, where they deposit most of their energy. The ... -
A Study in Leadership Practices that Cultivate Elementary School Teachers' Well-being During a Global Pandemic
(Virginia Tech, 2023-02-06)The COVID-19 pandemic placed greater demands on school leaders and caused ongoing disruption to teaching and learning. Faced with unprecedented challenges, school leaders have made critical changes in how they lead their ... -
Differentiating Externalizing Behaviors in Early Childhood: The Role of Negative Affectivity and Attentional Control
(Virginia Tech, 2022-12-14)My thesis project aimed to assess potential meaningful differences in the behavioral subtypes of externalizing behaviors in children. Externalizing behaviors are a style of behavioral adjustment that are characteristic of ... -
Beyond the Margins of the Model Minority: The Development and Validation of the East Asian American Situational Judgment Test
(Virginia Tech, 2022-12-07)With the onset of COVID-19 and the anti-Asian bias that has followed, there is growing importance in creating empirically valid measures of racial prejudice. In general, there has been limited research on workplace experiences ... -
Regulatory Flexibility Mediates the Relationship Between Delay Discounting and Remission from Substance Use Disorder
(Virginia Tech, 2022)Delay discounting (DD) and self-regulation are important predictors of substance use disorder (SUD) outcomes. Further, regulatory flexibility (RF; i.e., selecting, monitoring, and adapting coping techniques based on ... -
Dispersion Curve Estimation for Longitudinal Rail Stress Measurement
(Virginia Tech, 2021-08-13)There currently exists no reliable, non-destructive method for measuring stress in railroads and other similar structures without the need for a calibration measurement. Major limitations which have hindered previous ... -
Predicting Mutational Pathways of Influenza A H1N1 Virus using Q-learning
(Virginia Tech, 2021-08-13)Influenza is a seasonal viral disease affecting over 1 billion people annually around the globe, as reported by the World Health Organization (WHO). The influenza virus has been around for decades causing multiple pandemics ... -
Rational Engineering of Bacteria and Biohybrids for Enhanced Transport and Colonization in the Tumor Microenvironment
(Virginia Tech, 2021-08-13)One of the principal impediments to the broad success of conventional chemotherapy is poor delivery to and transport within the tumor microenvironment (TME), caused by irregular and leaky vasculature, the lack of functional ...
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