We investigated the performance limitations of superconducting radio-frequency (SRF) cavities and materials using multiple experimental techniques. In particular, this study focuses on understanding the surface properties of nitrogen-doped Nb cavities and superconducting thin films with higher Tc such as Nb3Sn. The main goal of this work is to use different techniques to better understand each aspect of the complex loss mechanism in superconductors to further improve the already highly efficient SRF cavities. Nitrogen doping applied...

Flood warnings are a type of risk communication that alerts the public of potential floods. Flood warnings can be communicated through mobile devices and should convey enough information to keep the user safe during a flood situation. However, the amount of detail included in the warning, such as the depth of the flood, may vary. The purpose of this study was to: (a) extend our prior research on flood warnings by recreating the written driving...

Clinical supervision is a central building block in counseling that ensures client welfare, fosters supervisees’ professional development, and facilities the gatekeeping process of those entering the profession (Bernard & Goodyear, 2019). In addition to gatekeeping, the American Counseling Association (ACA; 2014) Code of Ethics mandates clinical supervisors to be aware of and address multiculturalism’s role in the supervisory relationship. Because of this mandate, doctoral student supervisors of counselor trainees in CACREP-accredited programs are responsible for...

Disinformation, which is fabricated, misleading content spread with the intent to deceive others, is accumulating substantial engagements and reaching a vast audience on Instagram. However, the temporary nature of the platform and the security guidelines that remove malicious content make studying this disinformation a challenge. The only way to access removed content and banned accounts that are no longer on the live web is by searching the web archives. In this study, we set out...

The foot and ankle interface with the ground, thus they absorb reaction forces and initiate load distribution through the body. The plantar fascia (PF) is a flexible structure that absorbs reaction forces and distributes loading across the foot. It is frequently a source of foot pain especially when people have plantar fasciitis and/or diabetes mellitus. Finite element (FE) models of the foot and ankle were created to examine the function however, the plantar fascia is...

Clinical practice within teacher residencies offers contextually based experiences that are influential in the development of professional teacher identities. Additionally, the stories told by teacher candidates about these experiences are instrumental to this development as narratives and identity are intertwined (Clandinin & Connelly, 2000). Consequently, this study employs narrative inquiry to explore the three-dimensional space of time, place, and sociality that teacher candidates encountered for the first part of their clinical practice within a teacher...

The Forms of Things Unknown is a collection of nine short stories spanning multiple genres but connected by theme along with an editorial letter. It includes historical fiction, experimental fiction, imaginative realism, espionage, science fiction, and children’s literature. The stories are tied through the form of the collection as a magazine or anthology. They explore themes of growth, connections, truth, and memory. While the stories take on the qualities of their respective genre, the characters’...

Racial minorities in the United States have suffered from being disadvantaged. Among these disadvantages is environmental racism. This includes minority communities being ‘sacrifice zones’ for toxic waste and being exposed to lead poisoning. The purpose of this study is to examine differences in blood levels between white children and children of color. This research will follow a bivariate model for the first research question, “Do youth of color (under the age of 18) have higher...

Washington D.C. has witnessed many watershed events throughout the history of the United States of America. One of these events was the Summer in the Parks (SITP) program organized by the National Park Service (NPS) from 1968-1976. Summer in the Parks was a community-based series of events including concerts, park visits, and exhibitions designed to quell racial tensions and promote park usage. Researchers have begun chronicling SITP, but have yet to explore how the story...

Secondary math teachers faced new experiences and struggles this past virtual school year due to the global COVID-19 pandemic. Nine secondary math teachers from a school division in southeastern Virginia participated in this qualitative single case study. Data collection included individual semi-structured interviews and technology integration artifacts. Through a three round coding process, ten themes emerged to answer the following three research questions: 1) In terms of curriculum, teaching methods, and assessments, how did teachers...

The bottom sediment of the Southern Branch of the Elizabeth River, a tributary of Chesapeake Bay, was historically contaminated with hydrocarbons from industrial sources especially wood treatment facilities. The Elizabeth River Project selected a section of the bottom off Money Point in the Southern Branch for a sediment contaminant remediation effort. Prior to initiation of remediation efforts, a survey occurred in summer 2010 to characterize the ecological condition of the benthic communities off Money Point...

Emotion regulation is a transdiagnostic factor that functions as a crucial contributor to individual well-being and social functioning. Research seeking to identify adaptive or maladaptive strategies of emotion regulation has often focused on individual strategies, though emerging evidence suggests that what constitutes “adaptive” regulation is often context-dependent. Having a large repertoire of emotion regulation strategies that one is willing to use at different rates has been termed “emotion regulation variability,” and has been linked to...

An integrated biorefinery approach based on subcritical hydrothermal processes was developed to maximize utilization of biomass components by producing multiple products. Biomass from various sources like agricultural waste (lignocellulose), food waste (spent yeast), and dedicated cultivation (micro-algae) was used in this research. Corn stover (agricultural waste) was hydrothermally pretreated to remove lignin and xylan while preserving most of the glucan. The pretreated corn stover was utilized to produce levulinic acid (thermochemically) and fermentable sugars (biochemically)....

Functional glycoconjugates are important classes of compounds with many applications in different research fields. Our lab has been studying the synthesis and applications of different classes of glycoconjugates ranging from macrocycles to sugar heterocycle derivatives. Due to the importance of these compounds, our research is based on development of synthetic methods for various carbohydrate derivatives. This dissertation includes introduction and overview of projects, followed by the synthesis and studies of several different series of glycomacrolactones....

Pancreatic adenocarcinoma is a highly aggressive malignancy with disease-related mortality almost equaling its incidence. The notorious resistance of pancreatic cancer not only to conventional cytotoxic therapies but also to almost all targeted agents developed to date continues to puzzle the oncological community and represents one of the biggest hurdles to reduce the death toll from this ominous disease. Currently, we have been focusing on developing nanosecond electric pulse or nano-pulse (NP) technology for cancer therapy....

Bastard is a collection of eleven memoirs and personal essays that center on the question ‘what does it mean to be a parent?’ The narrator of the collection looks inward at his own experience with trauma, while also trying to situate the origin of the trauma in the relationship with his grandmother and father. Themes of memory, race, escape, and overcoming adversity run throughout the collection. There are very graphic depicts of child abuse in...

Today, thanks to modern advances mainly in the power electronics field, megawatt-level electric drives and magnetic levitation are being integrated into the marine power grids. These technologies operate based on Direct Current (DC) power which require Alternating Current (AC) to DC conversion within the current grid. Medium-voltage Direct Current (MVDC) and Flywheel Energy Storage Systems (FESS) are the next state-of-the-art technologies that researchers are leaning on to produce, convert, store, and distribute power with improved...

This novel follows an adventure undertaken by a group of scientists and explorers who undertake a quest in search of knowledge. It is an attempt to explore themes such as loneliness, unfamiliarity, and the boundary (a state of mind, perhaps?) separating reverie and reality, sanity and madness, humanity and animality, and the civilized and savage.

In the first essay, by drawing on theories of balance, social identity, and cue consistency, this research seeks to explain how in a mutual consumption customer B tie to the brand (other customer brand tie) may have an influence on customer A (new customer) brand trust and behavioral intentions. This study introduces a model integrating these constructs in a service context where there is a high chance of social encounters between and within customers and...

In statistical genetics, genetic association and genomic prediction become more successful with a highly heritable trait. Identifying highly heritable components of a complex disease can thus advance scientific understanding of the disease and potentially lead to effective prevention and treatments. Using Matlab and existing large-scale genome datasets, we evaluate a restricted maximum likelihood approach to identify highly heritable components of a complex disease as a function of multiple clinical variables.

Urban immersive residency programs have emerged from partnerships between K-12 schools and universities offering teacher candidates a year-long field experience alongside coursework aligned with the framework and practices in the schools (Zeichner & Bier, 2015). The goals of these programs include teacher candidates applying what they learn during preparation into practice and getting good student outcomes, while building their confidence in teaching diverse students. This study used situated learning theory (Lave & Wenger, 1991) to...

Youth apprenticeship programs are a means of bridging the middle skills gap and rebuilding the workforce while combating youth underemployment and unemployment. Previous attempts to advance these programs were unsuccessful. The study identified concepts to include or modify in draft legislation and policy statements to increase the possibility of enactment and implementation. Twenty-three youth apprenticeship advocates participated as panelists in a four-round online policy Delphi to garner opinions on posited recommendations and panelists’ responses to...

Sexual minority women are at increased risk of negative outcomes compared to heterosexual women. Bisexual women report disparities when compared to both heterosexual and lesbian women. The disparities experienced by bisexual women also appear to vary based on the gender of their partner, with those partnered with men reporting more negative health outcomes than those partnered with women. One area in which heterosexual and sexual minority women’s experiences differ is in the experience of objectification...

The advancement of low-cost, highly efficient solar cell devices is a major technological challenge demanding suitable materials and fabrication processes. Polycrystalline Cu(In,Ga)Se2 (CIGS) appear to be one of the most promising semiconductor in thin film photovoltaic technology due to its bandgap tunability, high absorption coefficient, and tendency to produce high efficiency solar cells. High-quality CIGS materials fabricated via a three-stage co-evaporation process can convert primary materials into devices with power conversion efficiency above 23%. Increasing...