Digital Commons Network^™

Diabetes, Obesity, Geographic Location Of The Patient And Clostridium Difficile Infection In The United States, Mary (Maribeth) Greenway

Walden Dissertations and Doctoral Studies

AbstractClostridium difficile infection (CDI) is a major nosocomial threat to be reckoned with in the current health care setting in the United States. Advancing age, underlying chronic disease associated with inflammation (including Diabetes Mellitus Type I ([DMI]), Diabetes Type II ([DMII]), and obesity), trauma, immunodeficiency and other factors that diminish the overall health of an individual, and increase an individual’s susceptibility to CDI. The ecological framework was used to determine the relationship between geographic, chronic diseases and the occurrence of infectious diseases. To continue enhancing knowledge related to CDI susceptibility this quantitative study used the 2010 National Hospital Discharge Survey …

Identifying Core Components Of Digital Literacy Initiatives For Adult Education Programs, Vivia May Dorothea Pitter

Walden Dissertations and Doctoral Studies

Digital literacy is a powerful tool for learners, and educational institutions and programs are tasked with the responsibility of developing frameworks, models, guidelines, or strategies within a digital literacy initiative to equip the learner. However, a lack of clarity and consensus on what constitutes digital literacy hinders developmental efforts and processes of digital literacy initiatives. The purpose of this qualitative modified Delphi study was to identify what experts agree are the core components of digital literacy initiatives that will provide clarity and consensus for adult education programs. The concerns-based adoption model’s innovation configuration dimension is the conceptual framework for this …

Strategies That Improve Ux (User Experience) Design Through Product Innovation, Jibing Zhao

Walden Dissertations and Doctoral Studies

User Experience (UX) design improvement can alter business results. Information technology (IT) company leaders are concerned with UX design improvement, as it is the number one indication of product innovation success and user satisfaction. Grounded in Christensen’s disruptive innovation theory, the purpose of the qualitative single case study was to explore strategies IT company leaders and UX designers used to identify critical UX design elements that lead to improved product innovations. The participants were five IT company leaders and a focus group of four UX designers employed by a sizeable telecom organization in Beijing, China. The data were collected from …

Equine-Assisted Psychotherapy: An Exploration Of The Therapist’S Clinical Process, Marybeth Agayev

Walden Dissertations and Doctoral Studies

AbstractIn the existing research authors report that within the current field of equine-assisted therapy practitioners are using a number of approaches, some independently and others in affiliation with formal organizations, to treat a wide variety of issues in a very broad population. The purpose of this study was to determine what underlying thought processes guide the equine-assisted therapist’s role in the clinical process. This generic qualitative study included five participants who met the criteria of having 3-5 years of experience performing equine-assisted psychotherapy with mental health populations. Participants also met the standard of being licensed or certified in accordance with …

Loneliness As A Treatment Focus For Suicide Prevention In Airmen Who Seek Mental Health Care, Jovanna O. Gaines

Walden Dissertations and Doctoral Studies

The Department of Defense is challenged to decrease rising suicide rates in all branches of military service. Studies have consistently shown interpersonal risk factors versus intrapsychic factors as strong indicators of suicide risk, yet the practice has not focused on loneliness as a treatment focus for increased risk. This study explored clinical social workers’ view of loneliness as experienced in patients who are active-duty airmen to identify prevention, coping, and treatment strategies for managing suicides. The methodology involved a semistructured interview of 10 active duty licensed clinical social workers with greater than two years of experience working within a mental …

Assessing Cancer And Heart Disease Occurrence From Groundwater Contaminated With Volatile Organic Compounds, Courtnie S. Owens

Walden Dissertations and Doctoral Studies

This study examined the effects of the toxic chemicals contained in volatile organic compounds (VOCs) on cancer occurrence and heart disease through occupational and environmental exposure to groundwater sources. This study was important because it provided critical insight for the public health community on the association between variations of past and current levels of VOCs in water sources and cancers and heart disease. The key research questions examined what proportion of occupational and nonoccupational individuals in southeastern North Carolina were diagnosed with cancer or heart disease and whether VOCs were associated with the long-term effects of cancer or heart disease …

Oil Rig Trainees’ Perspectives On The Influence Of Drilling Simulation On Their Learning And Motivation, Adel Mohamed Hassanein Abdelaziz

Walden Dissertations and Doctoral Studies

Low enrollment levels in vocational drilling training programs in the Arabian Gulf area have resulted in a talent gap, with little success in building and retaining national crews. With current simulation technology, it is believed that trainees' learning, motivation, and achievements will increase; however, further study is needed to determine if these conclusions hold. The purpose of this basic qualitative study was to explore how using simulation technologies influences trainees' learning, motivation, and perspectives about completing their education at an oil-field drilling rig’s vocational training facility. Davis’s technology acceptance model concerning user reception of information systems formed the conceptual framework. …

Strategies To Retain Seasoned Federal Acquisition Employees, Patricia Dianne Wells

Walden Dissertations and Doctoral Studies

Failure to retain seasoned acquisition employees negatively impacts an organization’s performance and outcomes. Managers need retention strategies to retain seasoned employees, as failure to retain seasoned employees results in capability gaps, decreased productivity, and increased expenses associated with recruiting and training new hires and transfers. Grounded in the social exchange theory, the purpose of this qualitative single case study was to explore strategies midlevel managers use to retain seasoned acquisition employees. The primary participants consisted of six midlevel federal acquisition managers of a federal agency who used strategies to retain seasoned acquisition employees. The secondary participants were five employees from …

Typhoid Fever Among Low-Income Women Living In Gujranwala, Pakistan., Tehmina S. Khan

Walden Dissertations and Doctoral Studies

Approximately 21 million individuals suffer from typhoid fever (TF) globally, and most outbreaks occur in Southeast Asia. The incidence of TF is high in Pakistan, particularly in low socioeconomic areas, and a new drug-resistant strain makes it difficult to control the spread of TF. There is a pressing need for up-to-date and accurate data regarding the attitudes, beliefs, and habits leading to the spread of TF infection among individuals living in low socioeconomic areas of Pakistan. This qualitative, phenomenological study was grounded in the health belief model and explored factors that influence the spread of TF among women of childbearing …

Gender Differences In The Mediation Between Childhood Abuse/Neglect And Trauma, Marc Samuel Cutler

Walden Dissertations and Doctoral Studies

Childhood abuse/neglect is a consistent concern in the United States and is related to future physical and mental health concerns. Studies have shown that childhood abuse/neglect can result in negative trauma appraisal, difficulties in emotion regulation, and lower levels of self-compassion. However, less is known about how gender impacts the relationship between negative trauma appraisal, difficulties in emotion regulation, and self-compassion with trauma symptoms in those with a history of childhood abuse/neglect. The purpose of this quantitative cross-sectional correlational study was to measure the impact of gender on the mediating variables (negative trauma appraisal, difficulties in emotion regulation, and self-compassion) …

Alternative Diet Practices As Predictors For Vaccine Confidence, Nancy Dolin

Walden Dissertations and Doctoral Studies

Perceived risks and side effects have left some with a lack of confidence in the safety and efficacy of vaccines. This may lead to not adhering to the recommended vaccination schedule and result in outbreaks that have the potential to harm those who are unable to get vaccinated due to age or infirmity. It is vital to seek and address the characteristics that may predict one’s confidence in vaccines. The aim of this study was to identify whether an individual’s alternative diet behavior may be able to predict their confidence in the measles, mumps, and rubella (MMR) vaccine. The theoretical …

Nurse Manager’S Leadership And Communication Skills And A Registered Nurse’S Organizational Citizenship Behavior, Satisfaction, And Intent To Leave, Emmitte J. Hall

Walden Dissertations and Doctoral Studies

The Veteran’s Health Administration (VHA) is the largest employer of registered nurses in the United States. The American Association of Colleges of Nursing predicts there will be a nursing shortage through the year 2030 and replacing and training each nurse is expensive and negatively impacts patient care. A review of the literature showed organizations with high levels of organizational citizenship behavior (OCB) had high levels of job satisfaction, which reduces turnover, but there was no research on the existence and impact of OCB in a federal health care facility, specifically the VHA. The purpose of this quantitative, correlational research was …

Optimizing The Human Aryl Hydrocarbon Receptor (Hahr) Expression In Pichia Pastoris, Junyu Qian

University of the Pacific Theses and Dissertations

The aryl hydrocarbon receptor (AHR) is a transcription factor which heterodimerizes with the aryl hydrocarbon receptor nuclear translocator (Arnt) to regulate downstream gene transcription. For the purpose of studying the crystal structure of human aryl hydrocarbon receptor (hAHR), it is essential to obtain abundant amount of pure recombinant protein.Basing on the benefits of using P. pastoris system to produce recombinant protein, including appropriate folding, secretion of interest proteins to the external environment of the cell, and easier purification process of protein due to the its limited production of endogenous secretory proteins [1], our lab chose P. pastoris yeast as the …

Regulation Of Ppp1r15a (Gadd34) And Ppp1r15b (Crep) Mrna Expression And Localization In The Unfolded Protein Response, Krithika Giresh

University of the Pacific Theses and Dissertations

The failure to balance protein synthesis, folding, and degradation in the endoplasmic reticulum (ER) leads to the accumulation of unfolded proteins, leading to ER stress. Cells respond to this stress by activating a response signaling pathway known as the Unfolded Protein Response (UPR). One of the branches of the UPR induces the phosphorylation of eIF2α (Eukaryotic Initiation Factor 2) to attenuate global protein synthesis, allowing for a chance to clear misfolded and unfolded proteins. This phosphorylation of eIF2α is opposed by a phosphatase, containing a catalytic subunit, Protein Phosphatase 1, and a scaffolding protein, either GADD34 or CReP. Inhibition of …

Developmental Plasticity Of Stress Tolerance And Life-History Strategy To Artificial Light At Night, Alyssa M. Bonfoey

University of the Pacific Theses and Dissertations

Artificial light at night (ALAN), or ecological light pollution, is increasingly prevalent worldwide. Exposure to ALAN tends to negatively impact animals—particularly, nocturnal animals—but life-history strategies may mitigate these costs. Animals in many regions are also increasingly exposed to climate-related stressors, such as heat and drought. Yet, interactions among ALAN, life-history strategy, and stress tolerance are unknown. Therefore, I determined if developmental ALAN exposure (1) affects development, (2) affects adult phenotype, including heat and desiccation tolerance, and (3) affects and/or interacts with life-history strategy. To address my aims, I used the variable field cricket (Gryllus lineaticeps) because its geographic range is …

How Do They Do It? Using Omics Approaches To Explore Metabolic Responses Associated With Hypoxia And Exercise Tolerance In The Deepest Diving Pinniped, Elizabeth R. Piotrowski

University of the Pacific Theses and Dissertations

Marine mammals such as northern elephant seals (NES) routinely experience hypoxemia and ischemia-reperfusion events to many tissues during deep dives with no apparent adverse effects. Adaptations to diving include increased antioxidants and elevated oxygen storage capacity associated with high hemoprotein content in blood and muscle. Despite experiencing decreased oxygen tensions during diving, NES likely rely on the mobilization of large lipids stores and catabolism of fatty acids to provide energy to exercising muscle while diving. To identify potential regulatory mechanisms that may underly hypoxia and exercise tolerance in diving mammals, this study used system-wide approaches to characterize changes in genes …

Beyond Cortisol: Indicators Of Stress And Negative Feedback In Plasma And Blubber Of Marine Mammals, Jessica Avalos

University of the Pacific Theses and Dissertations

Marine mammals play an important role in ecosystem stability. However, anthropogenic activity is compounding pressure on many already vulnerable populations. A potential consequence of anthropogenic disturbance is physiological stress, which can impact metabolism, immunity, and reproduction, especially if it occurs repeatedly. Previous studies on marine mammals have focused on acute stress, but the impacts of repeated stress are poorly understood. Due to its accessibility on land during haul-outs, the northern elephant seal (Mirounga angustirostris) is a good system in which to study the effects of stress in marine mammals. Stress stimulates the release of glucocorticoid hormones, primarily cortisol. Elevated cortisol …

Peripherally Restricted Delivery System Provides Insights On The Role Of Cns In Precipitating Opioid-Induced Constipation, Dengpan Liang

University of the Pacific Theses and Dissertations

A serious opioid crisis is affecting public health and economics, eroding people’s quality of life. 80% of patients who receive opioids suffer from adverse effects such as Opioid-induced constipation (OIC). However, there is no efficient medicine for these adverse effects. Notably, mainstream theory supports that analgesia effects are mainly controlled by CNS while OIC is predominately controlled by peripheral. In addition, the sites of action of opioid was based on the assumption that mu-opioid receptor antagonists (PAMORAs), did not cross the blood-brain barrier (BBB). Unfortunately, the BBB crossing of PAMORAs mislead the understanding of the role of the central nervous …

Utilization Of Virtual Reality For General Education Purposes, Amit Lal

University of the Pacific Theses and Dissertations

The use of Virtual Reality (VR) in a variety of professional, military, governmental, and educational fields has continued to expand over the past several decades, and the recent Covid-19 pandemic has brought attention to this field. This study surveys 154 college students over 23 questions that include various demographics that can be used to look for discriminators, multiple-choice VR-related questions, as well as a few free-form questions about use of VR in learning environments. The students’ experience with, interest in, and thoughts on how to best use VR vary considerably. The Covid-19 pandemic is found to have limited impact thus …

The Role Of Rad51 In Trichomonas Vaginalis, Dominique Hall

University of the Pacific Theses and Dissertations

Drug resistance to the current treatments on the market is on the rise, therefore there is strong interest in understanding what could be causing the resistance, how resistance could be spreading through the population, and finding some possible new drug targets. One protein of interest is Radiation Sensitive Protein 51 (Rad51). It is a protein that is involved in homologous recombination as well as other processes such as DNA damage repair. While Trichomonas vaginalis traditionally has been known to replicate via binary fission, a modified form of closed mitosis, there is some evidence that meiosis, or at least some form …

The Transcription Factor Nfe2l2a Is Required For Development Of Hematopoietic Stem Cells In The Zebrafish Embryo, Sivam Bhatt, Teerth Patel, Madeleine Seputro, Anubhav Thapaliya, Erich Damm

UROP Posters

Hematopoietic Stem Cells (HSCs) are the self-renewing population of cells that generate all erythrocytes and leukocytes over the lifetime of a vertebrate organism. HSCs are also the therapeutic units of curative bone marrow transplants used in the treatment of blood malignancies and in gene therapy for genetic blood disorders. In all vertebrate embryos, HSCs originate from the floor of the embryonic dorsal aorta during the endothelial to hematopoietic transition. Nascent HSCs will bud into the blood vessel and be carried to maturation sites by the embryonic blood flow. Despite the curative potential of HSC transplants in blood disorders, this approach …

The Landscape Of Accessible Chromatin In Quiescent Cardiac Fibroblasts And Cardiac Fibroblasts Activated After Myocardial Infarction, Chaoyang Yi, Jiangwen Sun, Qianglin Liu, Sanjeeva Dodlapati, Hao Ming, Leshan Wang, Yuxia Li, Rui Li, Zongliang Jiang, Joseph Francis, Xing Fu

Computer Science Faculty Publications

After myocardial infarction, the massive death of cardiomyocytes leads to cardiac fibroblast proliferation and myofibroblast differentiation, which contributes to the extracellular matrix remodelling of the infarcted myocardium. We recently found that myofibroblasts further differentiate into matrifibrocytes, a newly identified cardiac fibroblast differentiation state. Cardiac fibroblasts of different states have distinct gene expression profiles closely related to their functions. However, the mechanism responsible for the gene expression changes during these activation and differentiation events is still not clear. In this study, the gene expression profiling and genome-wide accessible chromatin mapping of mouse cardiac fibroblasts isolated from the uninjured myocardium and the …

Completing Single-Cell Dna Methylome Profiles Via Transfer Learning Together With Kl-Divergence, Sanjeeva Dodlapati, Zongliang Jiang, Jiangwen Sun

Computer Science Faculty Publications

The high level of sparsity in methylome profiles obtained using whole-genome bisulfite sequencing in the case of low biological material amount limits its value in the study of systems in which large samples are difficult to assemble, such as mammalian preimplantation embryonic development. The recently developed computational methods for addressing the sparsity by imputing missing have their limits when the required minimum data coverage or profiles of the same tissue in other modalities are not available. In this study, we explored the use of transfer learning together with Kullback-Leibler (KL) divergence to train predictive models for completing methylome profiles with …

In Vivo Activity Of Metal Complexes Containing 1,10-Phenanthroline And 3,6,9-Trioxaundecanedioate Ligands Against Pseudomonas Aeruginosa Infection In Galleria Mellonella Larvae, Megan O'Shaughnessy, Magdalena Piatek, Pauraic Mccarron, Malachy Mccann, Michael Devereux, Kevin Kavanagh, Orla L. Howe

Articles

Drug-resistant Pseudomonas aeruginosa is rapidly developing resulting in a serious global threat. Immunocompromised patients are specifically at risk, especially those with cystic fibrosis (CF). Novel metal complexes incorporating 1,10-phenanthroline (phen) ligands have previously demonstrated antibacterial and anti-biofilm effects against resistant P. aeruginosa from CF patients in vitro. Herein, we present the in vivo efficacy of {[Cu(3,6,9-tdda)(phen)₂]·₃H₂O·EtOH}_n (Cu-tdda-phen), {[Mn(3,6,9-tdda)(phen)₂]·₃H₂O·EtOH}_n (Mn-tdda-phen) and [Ag₂(3,6,9-tdda)(phen)₄]·EtOH (Ag-tdda-phen) (tddaH₂ = 3,6,9-trioxaundecanedioic acid). Individual treatments of these metal-tdda-phen complexes and in combination with the established antibiotic gentamicin were …

A Qualitative Analysis Of A Caregivers’ Experience Of Complementary Feeding In A Population Of Native Hawaiian, Other Pacific Islander And Filipino Infants: The Timing Of The Introduction Of Complementary Foods, And The Role Of Transgenerational Experience, Kara Mulville, Jessie Kai, John Kearney, Jacqueline Ng-Osorio, Carol J. Boushey, Marie K. Fialkowski

Articles

The aim of this study was to investigate caregivers’ experiences of complementary feeding (CF) among the Native Hawaiian and Other Pacific Islander (NHPI), and Filipino populations. Research focused on the timing of CF commencement, and the influence of transgenerational experience on feeding practices. The experiences and practices of those who fed human milk exclusively (HME), were compared to those who included infant formula (F&HM). Caregivers of a subset of 32 infants who were participating in a larger longitudinal study relating to CF and diet diversity, took part in voluntary in-depth interviews relating to CF practices. Interviews were recorded and transcribed. …

Bioactive Peptides From Algae: Traditional And Novel Generation Strategies, Structure-Function Relationships, And Bioinformatics As Predictive Tools For Bioactivity, Jack O'Connor, Marco Garcia-Vaquero, Steve Meaney, Brijesh Kumar Tiwari

Articles

Over the last decade, algae have been explored as alternative and sustainable protein sources for a balanced diet and more recently, as a potential source of algal-derived bioactive peptides with potential health benefits. This review will focus on the emerging processes for the generation and isolation of bioactive peptides or cryptides from algae, including: (1) pre-treatments of algae for the extraction of protein by physical and biochemical methods; and (2) methods for the generation of bioactive including enzymatic hydrolysis and other emerging methods. To date, the main biological properties of the peptides identified from algae, including anti-hypertensive, antioxidant and antiproliferative/ …

Taking Stock Of The “Compatibility Requirement”: What Limitations Does It Impose For High Seas Fishing?, Sean D. Murphy

GW Law Faculty Publications & Other Works

Under the contemporary law of the sea, coastal States enjoy sovereign rights within their exclusive economic zones (EEZs) to manage and exploit fishery resources. At the same time, States maintain the traditional freedom to fish on the high seas subject to some treaty obligations, including those arising from regional management fisheries organizations (RMFOs) and other treaties, such as (once it enters into force) the agreement on the conservation and sustainable use of marine biological diversity in areas beyond national jurisdiction (BBNJ agreement). Given that straddling stocks and highly migratory species of fish move with ease between EEZs and the high …

Strange Bedfellows? Representative Democracy And Academic Engagement With The Defense Industry, Steven L. Schooner, Evan Matsuda

GW Law Faculty Publications & Other Works

This chapter concludes a book that grew out of 2015 a conference hosted by the University of Pennsylvania's Center for Ethics and the Rule of Law, which brought together defense industry leaders, academics, and lawyers to discuss ethical challenges to the defense industry. Authors from the academy, practitioners, and policy-makers offer perspectives and insights such that the collection spans a broad range of disciplines, from philosophy, economics, law, and political science, to the management of corporate compliance.

In addition to attempting (no doubt unsuccessfully) to tie many of the book's themes together, the chapter itself asserts that the academic community …

Exploring Corporate Stakeholders’ Perspectives On Building Capacity For Employee Engagement In Workplace Wellness Initiatives, Abiola O. Keller, Rebecca Berman, Barb Scotty, Daniel Pinto

Physician Assistant Studies Faculty Research and Publications

Engaging employees with chronic conditions as partners in designing, implementing, and evaluating workplace wellness activities is a promising approach for optimizing the impact of workplace health promotion programs. Yet, there is a need for information on how employees are engaged in this process. We conducted a process evaluation of activities of the Patient-Centered Outcomes Research for Employees (PCORE) project formed around building capacity for employee engagement in wellness initiatives. Individual interviews were conducted with the 11 project stakeholders to explore perspectives of the project's participatory process and activities. Thematic categories emerging in the analysis were (1) Commitment and support, (2) …

Digital Tradition (2022), Loreto Pérez Ferre

Grado en Diseño de Moda

La pandemia ha causado un cambio en la industria textil. Por un lado las empresas han reducido su impacto durante los meses de confinamiento ante la bajada de ventas, mientras que han tenido que emplear plataformas digitales y distintos métodos para seguir llevando al cabo su producción. Ante todos estos cambios surgió un nuevo sector al que se le ha identificado como la moda digital. En este proyecto hemos investigado sobre los beneficios que tiene este sector tanto a nivel de eficacia como en la reducción de impacto medioambiental, a la vez que como herramienta para generar contenido. Para ello …