Digital Commons Network^™

Adversarial Decision Making In Counterterrorism Applications, Dogucan Mazicioglu

Theses and Dissertations

Our main objective is to improve decision making in counterterrorism applications by implementing expected utility for prescriptive decision making and prospect theory for descriptive modeling. The areas that we aim to improve are behavioral modeling of adversaries with multi objectives in counterterrorism applications and incorporating risk attitudes of decision makers to risk matrices in assessing risk within an adversarial counterterrorism framework. Traditionally, counterterrorism applications have been approached on a single attribute basis. We utilize a multi-attribute prospect theory approach to more realistically model the attacker’s behavior, while using expected utility theory to prescribe the appropriate actions to the defender. We …

Antidepressant-Like Effects Of Amisulpride, Ketamine, And Their Enantiomers On Differential-Reinforcement-Of-Low-Rate (Drl) Operant Responding In Male C57/Bl/6 Mice, Doug Smith

Theses and Dissertations

Major depressive disorder (MDD) is a widespread psychiatric disorder that affects millions of people worldwide and is hypothesized to occur due to impairments in several neurotransmitter systems, including the monoaminergic and glutamatergic neurotransmitter systems. Antidepressant medications targeting multiple monoamine neurotransmitters have been shown to be effective for the treatment of depression. Racemic amisulpride is an atypical antipsychotic that has been used at low doses to treat dysthymia, a mild form of depression, and functions as an antagonist at DA_2/3, 5-HT_2B, and 5-HT₇ receptors. Recent preclinical studies have suggested that the S(+) isomer may be more …

Expanding Monoamine Transporters Pharmacology Using Calcium Channels, Iwona Ruchala

Theses and Dissertations

Research in drug development meets many challenges including lengthy, complex and costly procedures to identify novel pharmacotherapies. In our lab, we developed a method for fast screening of small molecules that interact with monoamine transports – dopamine and serotonin (DAT, SERT). These membrane proteins play important roles in brain neurotransmission responsible for cognition, motion and pleasure. Dysfunction in dopaminergic and serotonergic systems result in neurological disorders such as depression, Attention Deficit Hyperactivity Disorder (ADHD), schizophrenia and addiction.

DAT and SERT are responsible for uptake of dopamine (DA) or serotonin (5HT) into the synapse and they limit neurotransmitter signaling. Drugs that …

How Does Alcoholics Anonymous Affect Drinking Outcomes? A Grounded Theory Perspective, Bryan Boyles

Theses and Dissertations

The mutual aid of Alcoholics Anonymous helps more people with alcohol-related problems than all forms of clinical treatment combined. Yet, efforts to understand AA’s action have been conducted, almost exclusively, from a clinical perspective. Thus far, the literature representing Alcoholics Anonymous from the perspective of its members is very limited. This study uses qualitative content analysis of the AA literature and a grounded theory approach to AA’s fellowship to provide an insider’s perspective of change processes associated with AA involvement. This understanding of the AA literature posits that Alcoholics Anonymous involvement results in life improvement, changes in spirituality, improved well-being, …

Predictors Of Vicarious Traumatization Among Trauma Clinicians And General Mental Health Providers: A Comparison, Shaina Gulin

Theses and Dissertations

Vicarious traumatization (VT) describes the gradual, transformative shifts in internal experience that occur as a result of cumulative exposure to clients’ trauma material. VT is thought to develop in the therapist due to empathic engagement with clients, resulting in profound disruptions in frame of reference. Because VT is conceptualized as a condition that develops due to frequent exposure to clients’ traumatic material, a rapidly emerging body of theoretical literature suggests that clinicians can safeguard against VT by maintaining a more balanced workload (i.e., a caseload of clients with a variety of presenting problems) and limiting the number of trauma cases. …

Misophonia: An Investigation Of The Lesser-Known Decreased Sound Tolerance Condition, Shannon Cusack

Theses and Dissertations

Misophonia is a decreased sound tolerance condition (DST) that is not yet well-established in the literature. However, the existing research on misophonia shows that it is occurring at substantial levels in the population. The majority of the existing literature has focused on the clinical correlates of misophonia. Although the correlates have been investigated, there is no accepted mechanism behind misophonia etiology or maintenance. The present study examined three hypotheses in order to start to identify potential mechanisms behind misophonia: how emotional predilections are related to the emotional response, how obsessive-compulsive disorder (OCD) symptoms and misophonia are related, and the possibility …

Taken Back By The Ballpark: The Role Of Nostalgia In The Minor League Baseball Spectator Experience, Mark A. Slavich

Theses and Dissertations

The use of nostalgia has become a feature in baseball ballparks in recent years, with research showcasing the prevalence of nostalgic stimuli including bricks, steel beams, and old-fashioned scoreboards popular in the past. The impact of such stimuli on spectators’ emotions and behavior had yet to be explored, though. Therefore, the purpose of the current study was to investigate the impact of nostalgia on minor league baseball spectator emotional and behavioral responses.

Data collection occurred at three minor league baseball games during June 2017. Utilizing the SOR framework (Mehrabian & Russell, 1974) as the theoretical foundation, a 39-item instrument was …

Developmental Trajectories Of Alcohol Use And Alcohol Use Disorder, Elizabeth C. Long

Theses and Dissertations

Alcohol use (AU) and alcohol use disorder (AUD) are leading causes of morbidity, premature death, and economic burden. They are also associated with high levels of disability and many other negative outcomes. Twin and family studies have consistently shown that AU and AUD are complex traits influenced by both genetic and environmental factors. Although much has been learned about the genetic and environmental etiology of AU and AUD, significant gaps remain. These include the need for a more comprehensive understanding of the roles of risk and protective factors, and the nature of developmental trajectories underpinning the progression from AU to …

The Role Of Afrocentric Features In Mental Healthcare Utilization And Counselor Preferences In Black College Students, Randl B. Dent

Theses and Dissertations

Though mental health issues are prevalent in Black young adults, they underutilize mental healthcare services. This research examined the role of feature-based discrimination in mental healthcare (under)utilization. Study 1, a secondary analysis of the National Longitudinal Study of Adolescent to Adult Health, provided no evidence supporting a link between skin tone and mental healthcare utilization, when controlling for depression diagnosis. However, when controlling for depression symptoms, there was a trend such that Black young adults with darker, as opposed to lighter, skin tone utilized healthcare less. Study 2, an experimental study with 33 Black college students, showed 73% of the …

Ain’T I Black Enough?: Anxiety Related To The Questioning Of One’S Group Membership, Michelle Stith

Theses and Dissertations

During late adolescence and emerging adulthood, individuals undergo identity formation (Erikson, 1956). During this period, individuals may be insecure about their group memberships (Myers & DeWall, 2015). Subcategorizations have developed among Black people in America resulting from their traumatic history (Blair, Judd, Sadler, & Jenkins, 2002; Levingston & Brewer, 2002). This subcategorization creates in-group/out-group dichotomies. In order to increase one’s self-image, Social Identity Theory (Tajfel & Turner, 1979) poses that individuals attempt to enhance the image of their in-group. This study aimed to determine whether a person feels anxiety due to fear of rejection from the in-group when challenged on …

One In Eight: Deciding To Pursue A College-Going Possible Self In A High-Poverty High School, David B. Naff

Theses and Dissertations

There is considerable research evidence suggesting that low-income, racial minority students value education and aspire for postsecondary educational attainment (Bloom, 2007; Destin & Oyserman, 2009; Wigfield & Eccles, 2002). However, their performance in school often does not align with those values and ambitions, as these students tend to underachieve in comparison with their higher-income, non-minority peers (Reardon, 2011), with particular gaps found in those attending schools of concentrated poverty (Rowan, 2011). This gap between educational ambition and attainment suggests that the experience of living and going to school in a high-poverty context could be related to the motivational processes driving …

Pathways Linking Clinician Demographics To Mental Health Diagnostic Accuracy: An International Perspective, Julia Brechbiel

Theses and Dissertations

Significant research efforts have focused on examining the effect of patient factors on providing diagnoses across clinical settings; however, the influence of clinician demographics have received less attention. This study aimed to understand the impact of nonclinical factors such as clinician characteristics and response time on diagnostic accuracy. The study used data from a WHO field study of the ICD-11 development (n = 1822) that required clinicians to diagnose two case vignettes. Clinicians’ slower response times had a significant positive impact on their rates of diagnostic accuracy. However, there was no evidence that clinicians’ demographic features were directly related to …

Modeling Psychologists’ Openness To Performing Clinical Work With Telepsychology, Bradford S. Pierce

Theses and Dissertations

This cross-sectional study examined whether the Theory of Reasoned Action (TRA) and Technology Acceptance Model (TAM) apply to psychologists’ openness to using telepsychology, and to identify significant personal or environmental predictors of telepsychology adoption. A total of 1,791 licensed psychologists currently practicing psychotherapy in the United States were recruited to complete a previously developed 21-item pool. Personal and environmental characteristics were also collected. Path models representing the TRA, TAM, and a hybrid of both were tested. Also, a logistic regression was used to identify personal and environmental predictors of current use of telepsychology. Results indicated the TRA and TAM were …

A Biobehavioral Approach To Examining Moral Distress In Critical Care Nurses, Marian Altman

Theses and Dissertations

Moral distress is a complex and challenging problem that may cause negative biopsycohosical and professional outcomes for critical care nurses. The purpose of this work was to explore the relationship between the ethical climate of the work environment and moral distress as experienced by critical care nurses; and to explore relationships among mediators of stress (nurse characteristics e.g. education (BSN, nonBSN), years certified as a critical care nurse, and tolerance of ambiguity) and their relationship with perceived stress, moral distress, health status and salivary alpha amylase. A descriptive correlational cross-sectional design was used for this pilot study of 100 critical …

Developing Conceptual Understanding And Procedural Fluency In Algebra For High School Students With Intellectual Disability, Andrew J. Wojcik

Theses and Dissertations

Teaching students with Intellectual Disability (ID) is a relatively new endeavor. Beginning in 2001 with the passage of the No Child Left Behind Act, the general education curriculum integrated algebra across the K-12 curriculum (Kendall, 2011; National Governors Association Center for Best Practices & Council of Chief State School Officers, 2010), and expansion of the curriculum included five intertwined skills (productive disposition, procedural fluency, strategic competence, adaptive reasoning, and conceptual understanding) (Kilpatrick, Swafford, & Findell, 2001). Researchers are just beginning to explore the potential of students with ID with algebra (Browder, Spooner, Ahlgrim-Delzell, Harris & Wakeman, 2008; Creech-Galloway, Collins, Knight, …

Influence Of Contextual Factors And Self Efficacy On Self- Management In Parents Of Children With Cystic Fibrosis, Erin B. Booth

Theses and Dissertations

Cystic Fibrosis, a life threatening autosomal recessive genetic disease, is characterized by a defective gene resulting in the production of thick mucus that obstructs the lungs and pancreas. CF requires intensive management performed at the home. An initial pilot study was performed to describe knowledge of CF related diabetes (CFRD) in adults with CF. The findings of this study, which demonstrated that adults with CF lacked sufficient knowledge about CFRD confirmed the need to explore additional factors of self-management guided by a theoretical framework. The second study presented in this dissertation used the Individual and Family Self-Management Theory (IFSMT) to …

Using Restoration-Oriented Coping And The Dual Process Model With Bereaved Undergraduates, Farah J. Aslanzadeh

Theses and Dissertations

Approximately 60% of college seniors lost at least one family member or friend since beginning college (Cox, Dean, & Kowalski, 2015). Research reveals that bereaved students are more likely than their nonbereaved peers to struggle with academic problems and attrition (Cousins, Servaty-Seib & Lockman, 2017), highlighting the importance of identifying protective factors for this group of individuals. Researchers have identified restoration-oriented coping as a helpful coping mechanism in other samples (Caserta & Lund, 2007; Caserta, Lund, Utza, & de Vries, 2009). Despite qualitative evidence suggesting bereaved undergraduates often employ restoration-oriented coping, no research has formally assessed the effects of restoration-oriented …

The Justification Of Prejudice Toward Childfree Women, Annalucia Bays

Theses and Dissertations

Previous research suggests that women without children are perceived negatively by others and experience adverse outcomes in various settings. This study investigated psychosocial justifications of prejudice toward childfree women. Participants (N = 891) completed measures of right-wing authoritarianism (RWA), the internal (IMS-S) and external (EMS-S) motivations to respond without sexism, and prejudice toward childfree women (i.e., perceived disadvantages of being childfree, evaluations of childfree women, and perceptions of childfree women’s warmth). Most participants also completed one or more justification measures of hostile sexism (HS), benevolent sexism (BS), gender-specific system justification (GSSJ), and femininity ideology. Results indicated that greater RWA …

Identity Politics, State Standards, And On The Ground Realities: A Critical Policy Analysis Of Teaching/Learning Gender/Sexuality In A Virginia Elementary School, Stefanie Hudson

Theses and Dissertations

Even though America has seen an increase in the level of acceptance for people who identify as LGBTQ and/or gender non-conforming, certain aspects within society continue to hinder their rights, especially within public education. Specifically, there are insufficiencies regarding content of and attitudes toward including LGBTQ issues in teaching and leadership training programs. Add to that, the deficits in most Family Life Education (FLE) programs in elementary schools as they lack adequate coverage of developmentally appropriate teaching and learning about gender and sexuality. Taken together, it remains questionable whether the needs of LGBTQ and/or gender non-conforming children can truly be …

Using Classroom Social Dynamics To Understand Classroom Adjustment By Students With Disabilities, Meera Mehtaji

Theses and Dissertations

This study aimed to understand constructs related to classroom social dynamics in a sample (n = 1863) of rural middle school students. First, it used latent profile analysis to classify classrooms based on classroom norm salience. Next, the study used the Hierarchical Linear Model to study the influence of classroom norm salience on the social roles and reputations, social network centrality, bullying involvement, and school belonging of students with disabilities. There were four major findings. First, classrooms were classified into two distinct categories based on students’ social reputations, which were positively associated with peer-nominated popularity: High Aggression Norm Salience …

Managing Sociality Of A Captive Female Bornean Orangutan From Breeding To Post-Partum At The Smithsonian's National Zoo, Marie Vergamini

Theses and Dissertations

The Association of Zoos and Aquariums’ Orangutan Species Survival Plan® aims to maintain 100 Bornean orangutans (Pongo pygmaeus) in captivity. Because investment in breeding these lineages is high, properly managing sociality of potential mothers is essential. This study assessed how behaviors of a captive breeding female at the Smithsonian’s National Zoo changed from pre-gestation through the offspring’s sixth month of age to improve breeding recommendations.

The infant Bornean orangutan was born September 2016. Results indicate that during breeding, the mother socialized most with two adult females. During pregnancy, the pregnant female socialized in less energy-consuming ways, i.e. grooming. …

The Role Of Social Networks In Breastfeeding Duration, Jordyn T. Wallenborn

Theses and Dissertations

Background: The United States has one of the lowest rates of breastfeeding in the world. Studies hypothesize that inadequate social support from healthcare providers, family members, and employers may have contributed to the low breastfeeding rate. This study aims to: 1) examine the importance of each individual (father, maternal grandmother, paternal grandmother, obstetrician, and pediatrician) within the social support network on breastfeeding initiation and duration, 2) determine the relationship between type of prenatal care provider and time to breastfeeding cessation, and 3) examine the role of breastfeeding intention and confidence as mediators in the association between workplace support and breastfeeding …

What's The 411 On Sex In The African American Church? A Qualitative Exploration Of African American Girls' Exposure To Sex Communication In The Church., Brittany Berry

Theses and Dissertations

WHAT’S THE 411 ON SEX IN THE AFRICAN AMERICAN CHURCH? A QUALITATIVE EXPLORATION OF AFRICAN AMERICAN GIRLS’ EXPOSURE TO SEX COMMUNICATION IN THE CHURCH

By: Brittany M. Berry, Ph.D.

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

Virginia Commonwealth University, 2017.

Major Director: Dr. Faye Z. Belgrave, Professor, Psychology

The purpose of this dissertation research was to explore sex communication with African American girls in the African American Church. This research was guided by two objectives: (1) to explore African American adolescent girls’ exposure to sex communication in …

The Effect Of Vibrotactile Feedback On Remote Manual Task Performance, Matthew S. Standard

Theses and Dissertations

Vibrotactile feedback offers a unique opportunity to augment or reconstruct impaired tactile sensations, whether that be in the form of enhancing prosthetics or specialized protective clothing. Important information about temperature and object slippage serve to endanger the human operator or equipment. This thesis presents three experiments which investigate amplitude modulated vibrotactile signals as a scalar dimension of roughness, the effect those signals and their locations (finger pad, forearm, bicep) have on the performance of two tasks: the sensing of temperatures simulated by vibrotactile signals and gripping an object of simulated surface texture. The results show task performance increase when the …

Skinface, Islam Shehab

Theses and Dissertations

Throughout history, skin manipulation was primarily practiced for cultural, tribal, or religious purposes. In the contemporary landscape, skin manipulation has been objectified and commercialized. This is exemplified through bio-upholstery, foreign materials under our skin and changing the skin structure.

This thesis investigates skin manipulation, with the intent to focus experimentation on the skin’s lines of cleavage, a topographical map drawn on our skin and used to define the direction where skin has the most and least flexibility. The aim is to connect and explore materials that can be used as a second skin, while at the same time examining and …

Synergy: Game Design + Qur'an Memorization, Sultana Jesmine Moulana

Theses and Dissertations

The rise of digital technology has transformed nearly every part of our daily lives, including the way we learn and memorize. Such transformations raise interesting questions for one of the most long-standing and demanding memorization tasks in the world: the memorization of the Islamic holy book, The Qur’an. For Muslims, The Qur’an is a timeless, sacred text, cradling within its covers many profound images, stories, and parables. Despite rigorous research in the fields of game design and memorization techniques, very little work has been done in combining these two areas of research to create a game-based memorization experience of The …

Non-Medical Use Of Prescription Drugs, Stress, Cultural Orientation, Utilization Of Healthcare, And Protective Factors Among College Students In China, Cheuk Chi Tam

Theses and Dissertations

Background: Non-medical use of prescription drugs (NMUPD) refers to the use of prescription drugs which are traditionally utilized to manage pain or treat psychiatric problems but without a doctor’s prescription. In 2010, an investigation by the Substance Use and Mental Health Services Administration (SAMHSA) revealed that 5.3% of young adults (18 to 25-year-olds) in the United States reported past-month NMUPD. NMUPD has become a growing concern owing to associations with consequences such as college dropout, poor academic achievement, and health jeopardizing behaviors. College students' NMUPD has been well documented in the United States. Limited studies, however, have been conducted among …

Examining Health Behaviors In College Students With And Without Chronic Conditions, Duc-Thi J. Barsell

Theses and Dissertations

Many college students are in a developmental period in which they are transitioning from pediatric to adult health care. This time period can be challenging for all college students and especially for students with a chronic condition. The current study investigated the association between various health-related factors (health locus of control [HLOC], health literacy, health self-efficacy, and health-related quality of life [HRQOL]) and health behaviors in college students, as well as the moderating effect of having a chronic condition on those associations. These health behaviors were further operationalized as healthy lifestyle behaviors (preventative and wellness behaviors, dietary behaviors, physical activity) …

Recovery From Design, Cassandra J. Ellison

Theses and Dissertations

Through research, inquiry, and an evaluation of Recovery By Design, a ‘design therapy’ program that serves people with mental illness, substance use disorders, and developmental disabilities, it is my assertion that the practice of design has therapeutic potential and can aid in the process of recovery. To the novice, the practices of conception, shaping form, and praxis have empowering benefit especially when guided by Conditional and Transformation Design methods together with an emphasis on materiality and vernacular form.

The Experiences And Perceptions Of Behavioral Factors That Contribute To Successful Weight Loss In Male Bariatric Patients, Stephen P. Sowulewski

Theses and Dissertations

The purpose of this study was to examine the experiences and perceptions of behavioral factors that contribute to successful weight loss in male bariatric patients. By analyzing participant experiences and perceptions, this study contributes to a better understanding of which factors are most important in the postoperative phase of gastric bypass in males owing to successful weight loss. Although there is a tremendous amount of quantitative research within the bariatric population, there is a significant gap within the qualitative literature as it relates to male outcomes. As such, by conducting interviews with 10 postoperative male gastric bypass patients, this study …