Digital Commons Network^™

Competing Strength-Based Models Of Trauma And Suicidality In A High-Risk Primary Care Sample, Samantha Mladen

Theses and Dissertations

There is limited research on the relationship between trauma exposure, depression, and suicidality, particularly in high-risk primary care samples. The present study aims to: 1) characterize the prevalence of suicidality, depression, and trauma exposure in this sample; 2)develop and test models of the relationships between suicidality, depression, and trauma exposure in this sample; 3) augment the selected model with key protective factors, including social support and religiosity; and 4) further elaborate the nature of religiosity as a potential protective factor using the subscales of the Attitudes toward God scale, Anger toward God and Comfort with God.

Patients (n …

Generic Of, Nicole Levaque

Theses and Dissertations

generic of is a creative text paralleling the creation of my thesis exhibition. I use fragmented layers of narrative, description and prose in the same way each handbuilt ceramic is fired multiple times, allowing the glazes to build upon themselves. This is a close study of the still life, the intimacy of consuming, and how trauma is passed through the gut.

A Sacred Gift: Rebalancing Our Relationship With Water, Noora Naser Melhim

Theses and Dissertations

In the Middle East, and specifically Qatar, water has significant cultural history and preciousness as a commodity. Today, the rapid economic development has resulted in a disconnection from the past leading to subconscious overconsumption of water.

This thesis investigates water from the context of cultural relevance, by examining systems of distribution before and after the discovery of oil. It reinterprets the materiality of the traditional ceramic vessels used to contain and preserve water with the intention of using the natural properties of clay, such as cooling and filtering, to produce new artifacts. The intent of this research is to critically …

Humans Aren't Boxes, Art Isn't Finite, Brianne Alta Humphreys

Theses and Dissertations

I am bored. All around me are systems that perpetuate repetitive, reductive, and mundane modes of living. In an attempt to counter a culture obsessed with singular ways of existence and bite-sized perfection, I utilize moving mediums of video and performance to dive head first into a vast array of sloppy sincerity. The crisp, white-washed, analytical, and restrictive is loudly replaced with the empirical, haphazard, and instinctual. My intention is to create and encourage raw, performative-based work that is as multifaceted as unbridled life itself. This alive and physical practice hosts a conglomeration of sweat, memories, heartbreaks, hymn singing, line …

Alcohol Use And Drinking Motives In Bereaved Undergraduates, Laura J. Smith

Theses and Dissertations

This study examined the effect of the experience of a loss on alcohol use and drinking motives in a college sample. Participants for this study were drawn from the “Spit for Science” project (Dick et al., 2014). The sample included 3,013 students (31.8% men, 68.2% women; 44.3% White, 21.1% Black, 19.6% Asian, 6.0% Latinx; mean age = 18.96; 16.2% bereaved) from Virginia Commonwealth University. Data were collected from participants’ freshman spring and sophomore spring time points on the Life Events Checklist, Alcohol Consumption items, and Drinking Motives Questionnaire-Revised. Participants who were bereaved between the freshman and sophomore timepoint did not …

Graphic Intimacies: Identity, Humor, And Trauma In Autobiographical Comics By Women Of Color, Francesca Lyn

Theses and Dissertations

Graphic Intimacies: Identity, Humor, and Trauma in Autobiographical Comics by Women of Color examines works of comics art about the lived experience of the comics’ creator. These graphic narratives address racialized difference and the construction of identity while also using humor to negotiate their narrations of traumatic events. I argue that these creators employ the structure of comics to replicate the fragmentary nature of memory. Comics allow for the representation of trauma as being intimately linked to corporeality. The comics medium allows creators to make visible and present fractured versions of the self, a product of traumatic fragmentation. Drawing traumatic …

An Evaluation Of Induced Shear Stress On Endothelial Cellular Adhesion Molecules, Edward B. Crabb

Theses and Dissertations

The pathophysiology of atherosclerotic cardiovascular disease (CVD) is highlighted by vascular dysfunction and low-grade vascular inflammation. Furthermore, the site-specific distribution of atherosclerosis throughout the arterial vasculature is primarily determined by local hemodynamic force. Therefore, this dissertation outlines three experiments designed to investigate the role of acute mental and physical (i.e., aerobic exercise), and vascular wall shear stress (SS) on the inflammatory aspects of atherosclerosis. Chapter 2 examines the effect of acute laboratory-induced mental stress on intracellular pro-inflammatory signaling pathways in peripheral blood mononuclear cells. Chapter 3 investigates the impact of acute laboratory-induced mental stress and maximal aerobic exercise on the …

Effects Of The Self- Determined Learning Model Of Instruction On Goal Attainment And Self-Determination For Students With Autism Spectrum Disorder., Meredith M. Moates

Theses and Dissertations

Even with current transition practice and service delivery requirements mandated for students with disabilities by the Individuals with Disabilities Education Act (IDEA, 2004) participation in postsecondary education and employment for individuals with autism remains low (Shattuck et al., 2012; Newman, Wagner, Cameto, & Knokey, 2011). The purpose of this study was to determine the effects of the Self-Determined Learning Model of Instruction (SDLMI; Wehmeyer, Palmer, Agran, Mithaug, & Martin, 2000). The intervention was designed to facilitate student development, and participation in community college course settings, increase academic and vocational goal attainment and self-determined behavior while decreasing support needs. The SDLMI …

An Investigation Of Neurological Soft Signs As A Discriminating Factor Between Veterans With Post-Traumatic Stress Disorder, Mild Traumatic Brain Injury, And Co-Occurring Post-Traumatic Stress Disorder And Mild Traumatic Brain Injury, David J. Rothman

Theses and Dissertations

While multiple Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn veterans suffer from mild Traumatic Brain Injury (mTBI), Post-traumatic Stress Disorder (PTSD), and co-morbid mTBI and PTSD, there remains difficulty disentangling the specific symptoms associated with each disorder using self-report and neurocognitive assessments. We propose that neurological soft signs (NSS), which are tasks associated with general neurologic compromise, may prove useful in this regard. Based on our review of the literature we hypothesized that individuals with PTSD would present with a greater number of NSS than controls or individuals with mTBI. Further, we hypothesized a synergistic effect, such that individuals with …

Singing The Landscape: A Meditation On Song, Sound And Community At The Fall Line Of The James River, Sara Bouchard

Theses and Dissertations

I work in the medium of song. A multidisciplinary artist and composer, I make work that is immersive, time-based and often participatory. I interact with landscape and the complexities of American history, bringing into focus local ecologies through the lens of song.

This document accompanies my thesis performance The Sound of a Stone, an immersive exploration of song, language, ecology and locational listening performed in a 4-channel surround format. In the semi-improvised composition, I sample live vocals, mandolin and found natural objects in a combination of roots music traditions and experimental techniques. Utilizing the software Ableton Live to process …

Long-Term Effects Of Notch1 Signaling On Neural Stem Cells Following Traumatic Brain Injury, Cruz Sevilla Jr

Theses and Dissertations

Traumatic brain injury (TBI) is a devastating problem which stands as a leading cause of death and disability. The elderly is significantly affected by TBI, typically as the result of falls, and recovery is especially limited. This, in part, is associated with decreased tissue-specific stem cell regeneration and replacement of damaged cells in the aged brain. The diminished ability of the aged brain to recover is especially devastating after TBI, likely leading to permanent loss of sensory, motor, and cognitive functions. Studies have shown that the mature mammalian brain contains Neural Stem Cells (NSCs), found in specific regions of the …

The Analgesic-Like Properties Of Alcohol In Animal Models Of Chronic Pain, Bradley Neddenriep

Theses and Dissertations

Chronic pain and excessive alcohol consumption are individually problems in our society today. Alcohol Use Disorder (AUD) affects 15.1 million adult Americans each year. Chronic pain affects over 100 million people annually in the United States. However, there is growing evidence suggesting that these two conditions can often be interrelated with chronic pain increasing consumption of alcohol, and excessive alcohol consumption increasing pain that leaves a feedback cycle trapping millions of patients in an ever worsening spiral. Large population-based studies show an association between pain and alcohol abuse, suggesting a link between increased alcohol use and reduced pain. While rodent …

Executive Functions As Moderators Of Response To Behavioral Interventions For Adolescents With Attention-Deficit/Hyperactivity Disorder, Stephen J. Molitor

Theses and Dissertations

Adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD) experience significant academic impairment and multiple interventions have been developed to address common academic problems, such as difficulties with homework, organization, and planning skills. Given cost and resource constraints, research is needed on factors that mental health providers can use to select the most appropriate interventions. To date, there has been minimal research evaluating moderators of response to ADHD interventions. Further, many of the variables that have been studied do not have strong theoretical ties to the mechanisms of change invoked by the interventions. This study examined potential moderators of treatment response to two academic …

Au@Tio2 Nanocomposites Synthesized By X-Ray Radiolysis As Potential Radiosensitizers, Maria C. Molina Higgins

Theses and Dissertations

Radiosensitization is a novel targeted therapy strategy where chemical compounds are being explored to enhance the sensitivity of the tissue to the effects of ionizing radiation. Among the different radiosensitizers alternatives, nanomaterials have shown promising results by enhancing tumor injury through the production of free radicals and reactive oxygen species (ROS). In this work, Gold-supported titania (Au@TiO₂) nanocomposites were synthesized through an innovative strategy using X-ray irradiation, and their potential as radiosensitizers was investigated. Radiosensitization of Au@TiO₂ nanocomposites was assessed by monitoring the decomposition of Methylene Blue (MB) under X-ray irradiation in the presence of the nanomaterial. …

Multiphase Droplet Interactions With A Single Fiber, Noor M. Farhan

Theses and Dissertations

Abstract

Multiphase Droplet Interactions with a Single Fiber

By: Noor M. Farhan

A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University.

Virginia Commonwealth University, 2019

Director: Hooman V. Tafreshi,

Professor, Department of Mechanical and Nuclear Engineering

Formulating the physics of droplet adhesion to a fiber is interesting intellectually and important industrially. A typical example of a droplet–fiber system in nature is the dew droplets on spider webs, where droplets first precipitate and grow on the fibers, but they eventually fall when they become too heavy. Obviously, quantifying the force …

The Role Of Tumor And Tumor Microenvironment On Breast Cancer-Associated Adipocyte Plasticity, Janina V. Pearce

Theses and Dissertations

Cancer-associated cachexia is a condition defined by a sustained net-negative energy imbalance. Although the different types of adipose tissue – white, beige, and brown – have been implicated in contributing to cancer-associated cachexia, the mechanisms of these maladaptive changes and their impact on whole-body energy expenditure have not been fully elucidated. Using breast cancer as our model, we demonstrate white adipose tissue browning in murine and human breast cancer; furthermore, we demonstrate that this effect is extremely localized and takes place early in tumor progression. We utilized in vitro cell culture techniques and demonstrate that cancer secreted factors and cross-talk …

The Efficacy Of A Group Visual Art Bereavement Intervention With Older Adults, Rachel E. Weiskittle

Theses and Dissertations

Research on expressive art interventions for bereavement has burgeoned in recent years. Studies have supported their effectiveness in facilitating participants’ adjustment to loss (e.g., Rosner, Kruse, & Hagl, 2010; Uttley, 2015) and have revealed the frequency with which they are clinically implemented (Thompson & Neimeyer, 2014). Clinicians and recipients of expressive art interventions advocate for their helpfulness in grief processing (e.g., Gamino, 2015). Publications have highlighted particular visual art modules that facilitate adaptive adjustment to loss by providing avenues for self-expression, meaning making and continuing bonds with the deceased (Neimeyer, 2016), but few studies have quantitatively investigated whether they improve …

Young Adults With Disabilities Financial Skills And Goals: A Mixed Methods Strengths And Needs Assessment, Allison D'Aguilar

Theses and Dissertations

Young adults with disabilities face barriers that affect their financial capability and financial inclusion in the marketplace. Barriers include a lack of autonomy, skills, and opportunities. This mixed method strengths and needs assessment aimed to explain and explore the financial skills and goals of young adults with disabilities. A standardized scale captured young adults with disabilities financial skills, photovoice participatory action research documented their valued financial skills and goals, and semi-structured interviews notated parents financial aspirations and goals for their daughters and sons. The mixed methods analysis suggested young adults with disabilities underlying financial skills fell 25 percent below the …

Longitudinal Patterns Of Depression Symptoms Among Emerging Adults, Sarah W. Clark

Theses and Dissertations

Research has suggested that depression symptoms generally decrease after late adolescence; however, there is increasing attention paid to depression symptoms among college students given the stressors unique to this time period and negative outcomes associated with depression. This study examined latent trajectories of depression symptom severity among college students. Participants were 9,889 college students who participated in the Spit for Science project (Dick et al., 2011). Growth Mixture Modeling was used to identify the presence of four subgroups of individuals with similar patterns of initial level and change in depression severity over four years of college, including Low/Minimal (55.9%), Decreasing …

Targeted Therapies For Ewsr1-Fli1 Translocated Ewing Family Of Tumors, Daniel A.R. Heisey

Theses and Dissertations

The EWSR1-FLI1 t(11;22)(q24;q12) translocation is the pathognomonic genomic alteration in 85% of the Ewing Family of Tumors (EWFT) a malignancy of the bone and the surrounding tissue, predominantly affecting children and adolescents. This translocation results in the formation of a chimeric oncoprotein which acts as an aberrant transcription factor that is currently not pharmaceutically druggable, driving the need for more effective targeted therapies. The EWSR1-FLI1 translocation induces a variety of changes including dysregulation of the epigenome and altered gene expression to drive tumorigenesis, and consequently contributes to the hypersensitivity of EWFT to several classes of chemotherapeutics. We sought to exploit …

Assessing The Impact Of Incorporating Residential Histories Into The Spatial Analysis Of Cancer Risk, Anny-Claude Joseph

Theses and Dissertations

In many spatial epidemiologic studies, investigators use residential location at diagnosis as a surrogate for unknown environmental exposures or as a geographic basis for assigning measured exposures. Inherently, they make assumptions about the timing and location of pertinent exposures which may prove problematic when studying long latency diseases such as cancer.

In this work we explored how the association between environmental exposures and disease risk for long-latency health outcomes like cancer is affected by residential mobility. We used simulation studies conditioned on real data to evaluate the extent to which the commonly held assumption of no residential mobility 1) affected …

Structure-Activity Relationship Studies Of Synthetic Cathinones And Related Agents, Rachel A. Davies

Theses and Dissertations

Synthetic cathinones and related agents represent an international drug abuse problem, and at the same time an important class of clinically useful compounds. Structure-activity relationship studies are needed to elucidate molecular features underlying the pharmacology of these agents. Illicit methcathinone (i.e., MCAT), the prototype of the synthetic cathinone class, exists as a racemic mixture. Though the differences in potency and target selectivity between the positional and optical isomers of synthetic cathinones and related agents have been demonstrated to have important implications for abuse and therapeutic potential, the two MCAT isomers have never been directly compared at their molecular targets: the …

Hospital Characteristics Associated With Hospital Acquired Condition (Hac) Reduction Program Payment Penalties Across Program Years, Emily D. Cochran

Theses and Dissertations

Objective: The primary objective of this study was to examine the relationship between hospital structural characteristics and penalization status (penalized or not penalized) in any given hospital acquired condition (HAC) Reduction Program year, FY 2015 through 2018. Structural characteristics included hospital type, case mix index, average daily census, bed size, ownership, disproportionate share percentage, location, and American Nurses Credentialing Center Magnet status. The secondary objective of the study was to determine whether a hospital's penalization status across one or more HAC Reduction Program years is related to quality performance (Total HAC Score) in subsequent years. These objectives were achieved through …

Training Future Mental Health Professionals In An Evidence-Informed System Of Care, Julia R. Cox

Theses and Dissertations

High quality mental health services do not reach the youth who need them, leading to efforts to implement effective treatments more broadly. One focus of these efforts concerns training the mental health workforce, of which master’s-level social workers represent a large proportion. However, the curricula of master’s in social work (MSW) programs do not often emphasize evidence-based approaches. One possible solution is Managing and Adapting Practice (MAP; PracticeWise, LLC), a system that allows clinicians to (1) identify clinically indicated evidence-based programs by searching a growing evidence-base of randomized controlled trials (RCTs) and (2) build individualized evidence-informed treatment plans by focusing …

Perceived Impact Of Ambient Operating Room Noise By Certified Registered Nurse Anesthetists, Marianne S. Cosgrove

Theses and Dissertations

It is widely acknowledged that elevated levels of noise are commonplace in the healthcare environment, particularly in high acuity areas such as the operating room (OR). Excessive ambient noise may pose a threat to patient safety by adversely impacting provider performance and interfering with communication among perioperative care team members. With respect to the certified registered nurse anesthetist (CRNA), increased ambient OR noise may engender distractibility, diminish situation awareness and cause untoward health effects, thereby increasing the possibility for the occurrence of error and patient injury.

This research project analytically examines the perceived impact of ambient noise in the operating …

From Sunrise To Sunset: A Lifespan Approach To Understanding The Mental Health Of A Subset Of American Farmers, Janna L. Imel

Theses and Dissertations

Prior research has indicated higher risk of suicide for farmers and identified depression and anxiety as mental health concerns, though the majority of research was conducted in the 1980s-1990s. In today’s economic, social, and political climate, farmers are exposed to situations and stressors reminiscent of the 1980s Farm Crisis. An added risk is the aging workforce of farmers, as age-related conditions can make farming even riskier. This study investigated the mental health of a subset of American farmers by exploring farm-related stressors, coping mechanisms, and mental health outcomes. Dispositional mindfulness was explored as a specific coping mechanism. Participants (N …

Do Sluggish Cognitive Tempo Symptoms Improve With School-Based Adhd Interventions? Outcomes And Predictors Of Change., Zoe Smith

Theses and Dissertations

Sluggish cognitive tempo (SCT) is a construct that includes symptoms of slowness, mental confusion, excessive daydreaming, low motivation, and drowsiness/sleepiness. SCT is often co-morbid with attention-deficit/hyperactivity disorder (ADHD), and SCT symptoms are associated with significant academic and interpersonal impairment above and beyond the influence of ADHD symptoms. Despite the overlap between ADHD and SCT and associated impairments, no studies have evaluated how evidence-based psychosocial interventions for adolescents with ADHD impact symptoms of SCT. This study examined whether SCT symptoms improved in a sample of 274 young adolescents with ADHD who received either an organizational skills or a homework completion intervention. …

The Role Of The Mechanical Environment On Cd117+ Endothelial Cell Angiogenesis, Patrick Link

Theses and Dissertations

Angiogenesis is a complex process coordinating cell migration, proliferation, and lumen formation. Changes to the microenvironment regulate angiogenesis through mechanotransduction and cytokine signals. In pulmonary hypertension, something in the process becomes abnormal, resulting in changes to the microenvironment and the formation of a glomerulus of dysfunctional capillaries, called a plexiform lesion. Endothelial cells, expressing CD117 (CD117+ EC clones) increase in the plexiform lesions of pulmonary hypertension, independent of pro-angiogenic VEGF signaling. We hypothesize that the mechanical environment and the macromolecular composition of the extracellular matrix, both, contribute to the aberrant angiogenesis. When we changed the mechanical environment, we changed the …

Investigating Daily Writing Emotions, Attention Regulation, And Productivity: An Intensive Longitudinal Study, Eric Ekholm

Theses and Dissertations

Emotions pervade academic situations and influence the ways that learners think, behave, and achieve (Pekrun, 2006; Schutz & Lanehart, 2002). Writing may be a particularly emotion-laden activity, and especially so for students concentrating in fields that value writing production. However, very few studies have quantitatively investigated writers’ emotional experiences. The goal of the current study was to examine the writing-related emotions of graduate students enrolled in writing-intensive disciplines as well as how these emotions related to writers’ daily productivity and attention-regulation behaviors. To do so, the study employed a daily diary design (Gunthert & Wenze, 2012) in which participants completed …

Teacher-Child Relationships, Interactions, And Problem Behavior: A Longitudinal Analysis Examining Bi-Directional Associations, Rachel Kunemund

Theses and Dissertations

A number of preschool children engage in consistent problem behaviors that place them at-risk for developing emotional and behavioral disorders. These problem behaviors have been associated with poorer short and long-term outcomes for young children. Teacher-child relationships (i.e. conflict and closeness) and positive interactions between teachers and children may be reciprocally associated with problem behavior (e.g. teacher-child closeness reducing problem behavior). The purpose of this study was to explore the longitudinal bi-directional relations between teacher-child relationships, teacher-child interactions, and problem behavior over a single school year. Using a cross-lagged panel model, data from a larger randomized control trial of the …