Digital Commons Network^™

A Mixed Methods Approach To Examine Racial Disparities In Adherence To Surveillance Mammography Among Breast Cancer Survivors, Megan C. Edmonds

Theses and Dissertations

PURPOSE: Annual surveillance mammography is a critical part of routine cancer care for breast cancer (BC) survivors; reducing mortality by 39%. However, disparities exist with regard to adherence to surveillance mammograms among BC survivors; Black women are 44% less likely to adhere than their White counterparts. Despite the existence of this racial disparity for over a decade, little is known about factors that explain reasons for Black BC survivors’ non-adherence. This is because most studies have not evaluated the role of healthcare delivery or psychosocial factors. Guided by the Behavioral Model for Vulnerable Populations, the purpose of this mixed methods …

Art Museum Docent Coordinators’ Perceptions: A Difficult Kind Of Balancing Act, Jennifer E. Schero

Theses and Dissertations

With visitors numbering in the millions, museums provide numerous entry points for attendees to engage with the objects in their care, including offering tours of their collections. Looking specifically at art museums, many institutions utilize volunteers to facilitate these guided looking experiences. Considerable research within the field of museum education focuses on the qualities of effective touring and methods and theories to support these endeavors. However, there is a lack of research focusing on the docent coordinators who oversee these volunteer guides. This study utilizes interpretive phenomenological analysis to explore perceptions of encyclopedic art museum docent coordinators concerning their preparation …

Coaching Paraeducators To Accurately Record Student Response Data During Direct Instruction, Paige J. Carter Phd

Theses and Dissertations

Paraeducators serving students with disabilities outnumber special education teachers in the United States (Stewart, 2019; U. S. Department of Education et al., 2018). Paraeducators regularly provide instruction without the benefit of regular and effective training. One of the duties associated with instruction is the collection of instructional data. The purpose of this study was to examine a combination of training and coaching on the accuracy of recording student responses. In addition, a teacher-as-coach model was examined for feasibility with existing time and resources. A multiple baseline across participants design was planned. Special education teachers and paraeducators at a public separate …

Third Culture Kids - Playing To Heal, Amna Sana

Theses and Dissertations

With increased globalization and a large expat population, Qatar is home to increasing numbers of Third Culture Kids (TCKs). TCKs are children who live in a country where their parents are non-native, children who grow up between cultures. Young TCKs, especially children between the ages of three and seven, do not possess the skills to adequately vocalize their feelings, but fortunately, play therapy allows them to articulate problems and feelings on their own terms. This thesis addresses the emotional hurdles facing TCKs, using concepts derived from play therapy and offering a series of interactive objects designed to reflect emotional expression …

Why We Follow Celebrities: An Examination Of Parasocial Interaction And Fan Engagement In A Celebrities’ Social Media Pages, Mohammed A. Alasmari

Theses and Dissertations

Social media sites have become essential for organizations and celebrities, allowing them to build relationships and interact with fans. Previous research found openness and perceived interactivity to improve social media engagement. The current study used the concepts of parasocial interactions and relationships to enhance the current knowledge of how celebrities influence their followers through Twitter. The study looked at perceived openness, perceived interactivity, and media engagement in relation to parasocial interaction and relationships using the Qualtrics survey response from 905 participants on Fayez Al-Malki’s Twitter page. The results indicated that both celebrities' and followers' posts employed openness and perceived interactivity, …

A Novel Immunostimulatory Platform For Amplifying The Abscopal Response Rates Of Radiation Therapy, Patrick A. Paez

Theses and Dissertations

Radiation therapy (RT) is one of the primary treatment modalities for head and neck squamous cell carcinoma (HNSCC). At the time of diagnosis two-thirds of HNSCC patients have local-advanced disease and 50-60% of these patients will experience a local-regional or metastatic relapse within three years. Improving the immunogenic response of RT may help address this clinical problem. However, current RT regimens have failed to reliably generate robust antitumor immunity as evidenced by the rarity of clinical abscopal responses. Recently we engineered a chimeric fusion molecule called Flagrp170, a novel immunostimulatory agent highly capable of promoting antigen presentation and T-cell activation. …

Impact Of Targeting Glycosylated Ceramides On Tumorigenic Properties, And Characterization Of Sphingolipids In Head And Neck Tumors, Katherine E. Hylton

Theses and Dissertations

Sphingolipids play a crucial role in signaling, membrane structure, and migration, making them important molecules in cancer development, metastasis, and drug resistance. While some sphingolipids have been associated with pro-apoptotic or pro-survival behaviors, the role of many sphingolipids in cancer remains poorly defined. Chapter 1 of this study investigated the impact of three enzymes that compose most of the ceramide to Lc3 ceramide pathway – UGCG, GBA, and B3GNT5 – and how their alteration impacts chemoresistance and basal membrane invasion in vitro. It was found that the CΒE-induced inhibition of GBA, which converts glucosylceramide to ceramide, has no effects on …

The Impact Of Healthcare Professional Students' Racial, Hiv-Related, And Abortion-Related Biases On Recommendations For Prenatal Care, Alison J. Patev

Theses and Dissertations

Black women and HIV-positive women have increased maternal mortality rates and other negative pregnancy outcomes, in part due to disparate prenatal care. Although women who seek abortions do not have the same negative outcomes, abortion stigma exists and is normalized in healthcare. Limited work has examined prenatal care provision for women in these groups, and even less work has explored the prenatal care provision by healthcare trainees (i.e., medical, nurse practitioner, and physician assistant students). Examining the role of bias on the prioritization of prenatal care items by healthcare trainees is imperative. Healthcare education sets the stage for future practice, …

Intermittent Theta Burst Stimulation: Application To Spinal Cord Injury Rehabilitation And Computational Modeling, Neil Mittal

Theses and Dissertations

Loss of motor function from spinal cord injuries (SCI) results in loss of independence. Rehabilitation efforts are targeted to enhance the ability to perform activities of daily living (ADLs), but outcomes from physical therapy alone are often insufficient. Neuromodulation techniques that induce neuroplasticity may push the limits on recovery. Neuromodulation by intermittent theta burst transcranial magnetic stimulation (iTBS) induces neuroplasticity by increasing corticomotor excitability, though this has most frequently been studied with motor targets and on individuals not in need of rehabilitation. Increased corticomotor excitability is associated with motor learning. The response to iTBS, however, is highly variable and unpredictable, …

From Social Alienation To Physical Health Concerns: Depression And Alcohol Proneness As Disconnection Pathways, Benjamin F. Shepherd, Paula M. Brochu

Archives of Assessment Psychology

It is well established that social isolation is a robust predictor of poor health outcomes, both mental and physical, yet little is known about whether and how personality characteristics related to social isolation (e.g., social alienation) affect health. Grounded in relational-cultural theory, the present study examined depression and alcohol proneness as parallel mechanisms underlying the association between social alienation and physical health concerns. As hypothesized, social alienation was positively associated with depression and alcohol proneness, and depression and alcohol proneness were both positively associated with health concerns. Notably, social alienation was indirectly associated with health concerns through depression for both …

Threat Assessment Team Activity And Outcomes In K-12 Public Schools: Integrating Methods To Better Understand School Safety, Jessica C. Smith

Theses and Dissertations

The use of threat assessment teams in schools is recommended as a violence prevention measure in K-12 public schools. The present study focused on the threat assessment process in the K-12 environment in Virginia and is the first to examine the association between threat assessment and school safety in tandem over time and the first to incorporate the views of K-12 threat assessment practitioners. Findings from this study demonstrate that while the number of threat assessments has increased overtime, threat assessment practitioners identified numerous concerns regarding threat assessment training, expressed doubts about fidelity to the recommended process, and revealed an …

The Gut Microbiome And Alzheimer’S Disease, Alejandra Lopez, Charles J. Golden

Archives of Assessment Psychology

Alzheimer’s Disease’s pathophysiology and pathogenesis are still poorly understood despite being one of the most researched neurocognitive diseases. This review examines a new area of research that explores the link between the gut microbiome and Alzheimer’s Disease pathology. Potential treatments and therapeutic interventions stemming from microbiome research are discussed as well. Overall, while the research so far is promising, the literature in this area is still in its infancy, and there is much to be done to establish a causal role between microbiome dysbiosis and AD pathology. Moreover, assuming that microbiome research continues to support new models of AD, implications …

The Association Between Social Media Use And Personality Dysfunction, Keefe Maccarone, Anthony Michael Tarescavage

Archives of Assessment Psychology

The association between social media site use and personality dysfunction has not yet been thoroughly explored. Existing studies focus on specific mental illnesses rather than dysfunctional personality traits. Moreover, the effects of social media use on individual functioning is debated within the literature. While some literature asserts that social media site use is harmful (e.g., Oberst et al., 2017), other studies have concluded that moderated social media site use may improve functioning (e.g., Barker, 2016). The purpose of the current study was to investigate the association between social media site use and various forms of personality dysfunction. Participants were administered …

Development And Evaluation Of A Combinatorial Rt-Qpcr Multiplex For Forensic Body Fluid Identification, Carolyn A. Lewis

Theses and Dissertations

Body fluid identification is essential in the forensic biology workflow that assists DNA analysts in determining where to collect DNA evidence. Current presumptive tests lack the sensitivity and specificity molecular techniques can achieve; therefore, molecular methods, such as microRNA and microbial signatures, have been extensively researched in the forensic community. Limitations of each method suggest combining molecular markers to increase discrimination efficiency of multiple body fluids from a single assay. While microbial signatures have been successful in identifying fluids with high bacterial abundances, microRNAs have shown promise in fluids with low microbial abundance. A disadvantage of RNA analysis in forensic …

Train Your Frontline Personnel From Newbie To Master It Users: A Three-Phase Longitudinal Experiment Focusing On Technology Compatibility, J. Song, Suning Zhu

School of Business Faculty Research

Background: Although many decision makers have recognized the importance of training to the success of their frontline personnel and organizations, hidden technological compatibility issues can lead to training failure especially when different generations, or iterations, of hardware and software are involved. In this study, we aimed to investigate the impact of different levels (high vs. low) of compatibility between software and hardware on frontline trainees’ gained understanding of the related IT.

Method: Grounded in experiential learning, we designed a three-stage training experiment that involved the use of cloud-based geographical information systems and radio-frequency identification devices. The experiment included compatibility between …

Self-Distancing And Avoidance Mediate The Links Between Trait Mindfulness And Responses To Emotional Challenges, Kate Petrova, Michael D. Nevarez, Robert J. Waldinger, Kristopher J. Preacher, Marc S. Schulz

Psychology Faculty Research and Scholarship

Objectives Mindfulness has been linked to better emotion regulation and more adaptive responses to stress across a number of studies, but the mechanisms underlying these links remain to be fully understood. The present study examines links between trait mindfulness (Five Facets of Mindfulness Questionnaire; FFMQ) and participants' responses to common emotional challenges, focusing specifically on the roles of reduced avoidance and more self-distanced engagement as key potential mechanisms driving the adaptive benefits of trait mindfulness. Methods Adults (n = 305, age range: 40-72) from the Second Generation Study of the Harvard Study of Adult Development completed two laboratory-based challenges-public speaking …

Coherence Between Feelings And Heart Rate: Links To Early Adversity And Responses To Stress, Kate Petrova, Michael D. Nevarez, Jenna Rice, Robert J. Waldinger, Kristopher J. Preacher, Marc S. Schulz

Psychology Faculty Research and Scholarship

No abstract provided.

Surgical Management Of Complex Post-Tuberculous Kyphosis Among African Patients: Clinical And Radiographic Outcomes For A Consecutive Series Treated At A Single Institution In West Africa, Ali M. Maziad, Owoicho Adogwa, Henry Ofori Duah, Kawdwo P. Yankey, Derrick Nyantakyi Owusu, Arthur Sackeyfio, Mabel Adobea Owiredu, Tyler Wilps, Gerhard Ofori-Amankwah, Franklin Coleman, Harry Akoto, Irene Wulff, Oheneba Boachie-Adjei, Focos Spine Research Group

College of Nursing Faculty Research and Publications

Study design Retrospective review of consecutive series. Objective To assess the clinical and radiographic outcomes after surgical management of post-tuberculous kyphosis. Summary of background data Post-tuberculous (TB) kyphosis can lead to progressive pulmonary and neurological deterioration. Surgery is indicated to decompress neural elements and correct the spine deformity. Although posterior vertebral column resection (PVCR) has been established as the treatment of choice for severe TB kyphosis, there is paucity of studies on the clinical outcomes among patients treated in West Africa. Methods Clinical and radiographic data of 57 patients (pts) who underwent surgical correction of post-TB kyphosis at a single …

Effectiveness Of Using A Simulation Combined With Online Learning Approach To Develop Discharge Teaching Skills, Marianne E. Weiss, Linda B. Piacentine, Lori Candela, Kathleen L. Bobay

College of Nursing Faculty Research and Publications

Background

Despite evidence of the impact of discharge teaching on patient outcomes, nursing students are poorly prepared in the pedagogical skills necessary for their role as patient and family educators in clinical practice. This study evaluated the effectiveness of simulation combined with online learning to improve nursing students’ discharge teaching skills.

Methods

The module included simulations before and after an online module on patient/family teaching for hospital discharge. Evaluation measures were student and independent rater evaluations using the Quality of Discharge Teaching Scale- Evaluation form (QDTS-E).

Results

Students (n=153) improved their performance on both content and delivery subscales of the …

When Pandemics Collide: The Impact Of Covid-19 On Childhood Obesity, Nancy T. Browne, Julia A. Snethen, Cindy Smith Greenberg, Marilyn Frenn, Jill F. Kilanowsky, Bonnie Gance-Cleveland, Pamela J. Burke, Linda Lewandowski

College of Nursing Faculty Research and Publications

• Children with obesity face increased biopsychosocial risks during COVID-19.

• Stress exacerbates inflammation and immune response in obesity and COVID-19.

• The COVID-19 pandemic has significantly interrupted children's daily routines.

• The health effects of the obesogenic environment are exacerbated by COVID-19.

• Access to timely, comprehensive healthcare is critical during COVID-19.

“No Queremos Quedar Mal”: A Qualitative Analysis Of A Boundary Setting Training Among Latina Community Health Workers., Luis R. Alvarez-Hernandez, J. Maria Bermudez, Pamela Orpinas, Rebecca Matthew, Alejandra Calva, Carolina Darbis

School of Social Work Faculty Publications

Community health workers (CHWs)—or promotoras de salud in Spanish—have successfully addressed the health needs of Latinx and immigrant populations. However, for promotoras, setting boundaries is particularly difficult given challenges like residing in the same communities as their participants. The purpose of this study was to describe the development and impact of a boundary setting training to support the emotional well-being of immigrant promotoras. The training (four 1-hr sessions) was informed by social cognitive theory and a Chicana feminist framework. The promotoras who participated in the training helped create Lazos Hispanos, a community-based participatory research (CBPR) study and CHW …

A New Aortic Arch Dissection Classification: The Fuwai Classification, Juntao Qiu, Xinjin Luo, Jinlin Wu, Wei Pan, Qian Chang, Xiangyang Qian, Xiaogang Sun, Bo Wei, Liang Zhang, Shen Liu, Wenxiang Jiang, Cuntao Yu

Faculty, Staff and Students Publications

Aims: We describe a new aortic arch dissection (AcD) classification, which we have called the Fuwai classification. We then compare the clinical characteristics and long-term prognoses of different classifications.

Methods: All AcD patients who underwent surgical procedures at Fuwai Hospital from 2010 to 2015 were included in the study. AcD procedures are divided into three types: Fuwai type Cp, Ct, and Cd. Type Cp is defined as the innominate artery or combined with the left carotid artery involved. Type Cd is defined as the left subclavian artery or combined with the left carotid artery involved. All other AcD surgeries are …

Cerebellar Coordination Of Neuronal Communication In Cerebral Cortex, Samuel S Mcafee, Yu Liu, Roy V Sillitoe, Detlef H Heck

Duncan NRI Faculty and Staff Publications

Cognitive processes involve precisely coordinated neuronal communications between multiple cerebral cortical structures in a task specific manner. Rich new evidence now implicates the cerebellum in cognitive functions. There is general agreement that cerebellar cognitive function involves interactions between the cerebellum and cerebral cortical association areas. Traditional views assume reciprocal interactions between one cerebellar and one cerebral cortical site, via closed-loop connections. We offer evidence supporting a new perspective that assigns the cerebellum the role of a coordinator of communication. We propose that the cerebellum participates in cognitive function by modulating the coherence of neuronal oscillations to optimize communications between multiple …

Computer-Assisted Challenge Point Intervention For Residual Speech Errors., Tara Mc Allister Byun, Elaine R. Hitchcock, Jose Ortiz

Department of Communication Sciences and Disorders Faculty Scholarship and Creative Works

Purpose: This preliminary case series investigated the effects of biofeedback intervention for residual rhotic errors delivered within a modified challenge point framework. In the challenge point framework, practice difficulty is adaptively adjusted with the goal of enhancing generalization learning. This study more specifically evaluated the feasibility of a computer-mediated implementation of challenge point treatment for rhotic errors using a custom open-source software, the Challenge Point Program.

Method: Participants were five native English speakers, ages 7;3–15;5 (years; months), who had established but not generalized correct rhotic production in previous treatment; overall treatment duration was flexible. Treatment incorporated either electropalatographic …

Calvin Theological Seminary Academic Catalog 2021-2022, Calvin Theological Seminary

Seminary Academic Catalogs

No abstract provided.

Rapid Quantification Of Biofouling With An Inexpensive, Underwater Camera And Image Analysis, Matthew R. First, Scott C. Riley, Kazi Aminul Islam, Victoria Hill, Jiang Li, Richard C. Zimmerman, Lisa A. Drake

Electrical & Computer Engineering Faculty Publications

To reduce the transport of potentially invasive species on ships' submerged surfaces, rapid-and accurate-estimates of biofouling are needed so shipowners and regulators can effectively assess and manage biofouling. This pilot study developed a model approach for that task. First, photographic images were collected in situ with a submersible, inexpensive pocket camera. These images were used to develop image processing algorithms and train machine learning models to classify images containing natural assemblages of fouling organisms. All of the algorithms and models were implemented in a widely available software package (MATLAB^©). Initially, an unsupervised clustering model was used, and three …

Continuity Of Chen-Fliess Series For Applications In System Identification And Machine Learning, Rafael Dahmen, W. Steven Gray, Alexander Schmeding

Electrical & Computer Engineering Faculty Publications

Model continuity plays an important role in applications like system identification, adaptive control, and machine learning. This paper provides sufficient conditions under which input-output systems represented by locally convergent Chen-Fliess series are jointly continuous with respect to their generating series and as operators mapping a ball in an Lp-space to a ball in an Lq-space, where p and q are conjugate exponents. The starting point is to introduce a class of topological vector spaces known as Silva spaces to frame the problem and then to employ the concept of a direct limit to describe convergence. The proof of the main …

Matters Of Biocybersecurity With Consideration To Propaganda Outlets And Biological Agents, Xavier-Lewis Palmer, Ernestine Powell, Lucas Potter, Thaddeus Eze (Ed.), Lee Speakman (Ed.), Cyril Onwubiko (Ed.)

Electrical & Computer Engineering Faculty Publications

The modern era holds vast modalities in human data utilization. Within Biocybersecurity (BCS), categories of biological information, especially medical information transmitted online, can be viewed as pathways to destabilize organizations. Therefore, analysis of how the public, along with medical providers, process such data, and the methods by which false information, particularly propaganda, can be used to upset the flow of verified information to populations of medical professionals, is important for maintenance of public health. Herein, we discuss some interplay of BCS within the scope of propaganda and considerations for navigating the field.

Covid-19 And Biocybersecurity's Increasing Role On Defending Forward, Xavier Palmer, Lucas N. Potter, Saltuk Karahan

Electrical & Computer Engineering Faculty Publications

The evolving nature of warfare has been changing with cybersecurity and the use of advanced biotechnology in each aspect of the society is expanding and overlapping with the cyberworld. This intersection, which has been described as “biocybersecurity” (BCS), can become a major front of the 21st-century conflicts. There are three lines of BCS which make it a critical component of overall cybersecurity: (1) cyber operations within the area of BCS have life threatening consequences to a greater extent than other cyber operations, (2) the breach in health-related personal data is a significant tool for fatal attacks, and (3) health-related misinformation …

Fault Protection Considerations For Mvdc Shipboard Power Systems Operating With Pulsed-Power Loads, Marounfa Djibo, Paul Moses, Ike Flory

Electrical & Computer Engineering Faculty Publications

Medium Voltage Direct Current (MVDC) power distribution architectures are of immense interest for various shipboard power applications due to their advantages over classical MVAC distribution systems with respect to power quality, power density, and efficiency. However, MVDC are far away from maturity when compared to MVAC with respect to fault detection and isolation. Currently, there are no standards available for applying MVDC protection systems in shipboard applications. Furthermore, due to the absence of zero crossings in DC waveforms and unique transient fault signatures, it is challenging to design effective protection system schemes to isolate faults via conventional protection systems. This …