Digital Commons Network^™

Understanding Your Cultural Identities: A Self-Study Of The Impact Of One’S Cultural Identities On Interpreting Interactions, Shelby L.W. Sammartino

Education Doctorate Dissertations

There is a disproportionality of students of color receiving office referrals for disrespect and defiance because disrespect and defiance are subjective in interpretation by teachers in the classroom. This self-study aims for the researcher to identify and understand the construction of their cultural identities, so they can determine how their cultural identities impact their interpretation of interactions with students concerning disrespect and defiance, how their cultural identities impact their choice of behavior management technique in interactions concerning disrespect and defiance, and how their cultural identities impact their discipline decisions in interactions concerning disrespect and defiance. The data to determine the …

Cultivating Lifelong Readers: A Study Of How English Teachers Can Bring Pleasure Back Into The Reading Lives Of Students, Kaylie Jo Schertzing

Masters Projects

Research has revealed that many of today’s students are not reading for pleasure. Although research shows that recreational reading is linked with academic success, educational policies have left reading for pleasure out of focus and instead emphasize a particular type of reading that is assessed on mandated tests. As a result of curriculum reforms, English Language Arts curriculum has been narrowed and left reading for pleasure out of focus. This project explores the history of curriculum reform in the United States as it relates to the teaching of English Language Arts as well as recent research surrounding how recreational reading …

Detecting Transient Events With Genetic Algorithms, Dylan G. Palmieri

Computer Science

Accurately detecting and analyzing events in a power system is a difficult, but important task. This project aims to determine whether genetic algorithms are viable - in terms of both accuracy and efficiency - for detecting these events in large sets of power systems data. Although power systems events are intially classified using a trigger-based system at the time of the event, this project aims to show that power systems can be broken down into their component parts (lineto-line voltage, current, etc.) and analyzed in isolation after the fact with similar accuracy. The system attempts to achieve this goal by …

I'M A Killer Whale: The Process Of Cultural Identity Development From The Perspectives Of Young Indigenous Children, Angela Lunda

Indigenous Studies

This qualitative single case study examined the phenomenon of cultural identity development from the perspective of young Indigenous children situated within the context of their southeast Alaskan community. Decades of assimilationist policies have eroded cultural identity among many Indigenous Alaskans, yet a strong cultural identity is known to be a protective factor for Indigenous peoples. Building on Indigenous identity development theory, the study sought to answer the research questions: (1) How do young children demonstrate their cultural identity through interactions on the Land? (2) How do community organizations support cultural identity development (CID) in young Indigenous children? (3) What role …

Computing Prime Factorizations With Neural Networks, Dakota Dragomir

Mathematics and Statistics

When dealing with sufficiently large integers, even the most cutting-edge existing algorithms for computing prime factorizations are impractically slow. In this paper, we explore the possibility of using neural networks to approximate prime factorizations in the hopes of providing an alternative factorization method which trades accuracy for speed. Due to the intrinsic difficulty associated with this task, the focus of this paper is largely concentrated on the obstacles encountered in the training of the neural net, rather than on the viability of the method itself.

Formation And Interrogation Of A Modeling Excel Database For Sorbent Preconcentrate With Gc/Ms, Lisa Caravello

Chemical and Biological Engineering ETDs

Volatile organic compounds (VOCs) are of great interest and the subject of much research, as they can be used in various applications. Preconcentrating this class of analytes is necessary as they can be elusive with simple sampling techniques. VOCs are often captured using sorbents in thermal desorption tubes as preconcentrates prior to analysis, commonly gas chromatography mass spectroscopy (GCMS). There are gaps in knowledge in behavior of materials used as sorbents i.e., if they will retain an analyte of interest appropriately. In this research I seek to eliminate speculation and unknown variables of analyte and sorbent combinations by creating a …

The Heart And Soul Of Engagement In The Float Pool Team, Kymberly Dexter

Master's Projects and Capstones

Problem: The assistant nurse manager (ANM) role is considered an entry-level management position and is not intended as a permanent career role. The unintended consequence is that there is a high rate of organizational turnover, making it challenging to build and retain a solid, cohesive, and productive team.

Context: A new manager of a float pool team in a 166-bed community hospital found that with little financial investment, a significant impact is made by holding a safe space for listening to the ANM team and designing education and training around what is most important to frontline managers.

Interventions: A baseline …

Investigating The Effectiveness Of Prehospital Recognition And Administration Of Intravenous Antibiotics In Septic Patients, Laura Keane, Ian Peterson

Physician Assistant Capstones, 2020-current

Objective: To compare the 30-day mortality rate of suspected sepsis patients who received prehospital (Emergency Medical Services- EMS) antibiotic administration in an ambulance as compared to antibiotic administration in the hospital. Design: Systematic literature review. Methods: Research was conducted in PubMed and Google Scholar with the search terms: sepsis, antibiotics, prehospital, EMS, ambulance. The 3 articles selected were chosen after removing articles not from a randomized control trial, no antibiotic administration, and not a free article. Results: From our meta-analysis of the three studies, we concluded that providing antibiotics before arriving at the hospital for patients with suspected septic infections. …

Species Distribution Modeling Of Northern Sea Otters (Enhydra Lutris Kenyoni) In A Data-Limited Ecosystem, Elizabeth L. Hasan

Marine Biology

Species distribution models are used to map and predict geographic distributions of animals based on environmental covariates. However, species distribution models often require high resolution habitat data and time-series data on animal locations. In data-limited regions with little animal survey data or habitat information, modeling is more challenging and often ignores important environmental attributes. For sea otters (Enhydra lutris), a federally protected keystone species with variable population trends across their range, predictive modeling of distributions has been successfully conducted in areas with an abundance of sea otter and habitat data. Here, we used open-access data across a single time step …

Exploring The North American Arctic Benthos: Community Structure And Oil Degradation Potential Of Sediment Bacteria And Archaea, Alexis M. Walker

Marine Biology

The Chukchi and Beaufort seas benthic habitats are home to a multitude of ecologically and commercially important organisms that are subject to ongoing environmental changes, including the impacts of climate change and increased exposure to contaminants. Benthic bacteria and archaea can be considered biogeochemical engineers. They play a major role in organic matter (OM) degradation and nutrient cycling and their community structure can reflect changes in environmental conditions such as OM composition and quantity, nutrient availability, redox conditions, and natural/anthropogenic contaminants (e.g. petroleum hydrocarbons). Yet, sediment microbial communities have rarely been examined in these marginal seas of North American Arctic. …

Orbital Angular Momentum Orthogonality-Based Crosstalk Reduction: Theory And Experiment, Unaiza Tariq

Electrical Engineering Theses and Dissertations

Full duplex communication systems allow a single channel to be used for simultaneous two-way communication, increasing spectral efficiency. However, full duplex communication systems suffer from the issue of self-interference between local transmitter and receiver antennas. Analog subtraction and signal processing methods have previously been used to reduce this problem. This dissertation proposes the use of waves carrying orbital angular momentum (OAM) to mitigate the problem of self-interference by offering a means of additional isolation between local antennas.

Orbital angular momentum has been widely studied both in the photonics and radio domain. The theoretically infinite orthogonal states of an OAM signal …

Development And Application Of A Design Flow For Photonic Integrated Circuits, Ifeanyi Achu

Electrical Engineering Theses and Dissertations

Silicon photonics allows for the fabrication of many optical elements on a single photonic integrated circuit (PIC). By taking advantage of the established foundry technology used in the CMOS and silicon’s high refractive index, high feature density manufacturing can be achieved in mass quantities. In CMOS fabrication, from conception of an electronic circuit to testing, the process of designing an electronic circuit is dictated by a design flow which has been developed over the course of decades. This flow includes circuit level design and simulation, layout of the circuit, layout and verification of the chip, fabrication, packaging, and testing. Given …

An Investigation Of The Role Of System Effectiveness In The Acquisition And Sustainment Of U.S. Defense Systems: 1958 To 2022, John Green

Operations Research and Engineering Management Theses and Dissertations

This dissertation investigates the role of the system effectiveness methodology in acquiring and sustaining U.S. military weapons systems from 1958 to 2021. The period of interest has seen numerous changes in both the acquisition process and the application of system effectiveness to acquisition and sustainment. Several of the changes were disruptive, including shifting acquisition and sustainment to a commercial paradigm and completely overhauling the approach to acquiring new systems. The method of inquiry integrated three qualitative methods–structured literature review, grounded theory analysis, and historiography–into an innovative approach for investigating the changes to system effectiveness. The database for the investigation was …

Effectiveness And Safety Of Direct Oral Anticoagulants Among Patients With Non-Valvular Atrial Fibrillation And Multimorbidity, Amol Dhamane, Mauricio Ferri, Allison V. Keshishian, Cristina Russ, Nipun Atreja, Cynthia Gutierrez, Birol Emir, Huseyin Yuce, Manuela Di Fusco

Publications and Research

Introduction

In the USA, there is a steady rise of atrial fibrillation due to the aging population with increased morbidity. This study evaluated the risk of stroke/systemic embolism (S/SE) and major bleeding (MB) among elderly patients with non-valvular atrial fibrillation (NVAF) and multimorbidity prescribed direct oral anticoagulants (DOACs).

Methods

Using the CMS Medicare database, a retrospective observational study of adult patients with NVAF and multimorbidity who initiated apixaban, dabigatran, or rivaroxaban from January 1, 2012 to December 31, 2017 was conducted. High multimorbidity was classified as having ≥ 6 comorbidities. Cox proportional hazard models were used to evaluate the hazard …

Inhibition Of Rad18 By Arsenic, Lindsay B. Volk

Biomedical Sciences ETDs

Arsenite exposure leads to the retention of UV-induced DNA damage, thus burdening translesion synthesis (TLS). Rad18 is an essential factor in initiating TLS through PCNA monoubiquitination and is implicated in homologous recombination. It contains two functionally and structurally distinct zinc fingers that are potential targets for arsenite binding. Results from this study reveal arsenite binding to both zinc fingers of Rad18 and a corresponding loss of domain function. Importantly, arsenite inhibited Rad18 RING-dependent PCNA monoubiquitination and polymerase eta recruitment to DNA damage. Further analysis demonstrated multiple effects of arsenite, including the reduction in the nuclear localization and UV-induced chromatin recruitment …

Ela High School Teacher Beliefs About Academic Language Learning, Wendy Aro

Doctorate in Education

The enrollment of English learners (ELs) in K-12 schools in the United States continues to surpass all other student groups reshaping U.S. public schools (National Center for Education Statistics, 2017). Research suggests while learning English, ELs fall behind academically, which can determine how long an EL remains in an English learner program (Wixom, 2014). Educators and leaders are faced with the challenges associated with EL education including professional development, retaining EL specialized teachers, and designing, implementing, and evaluating EL service models. Other challenges include ensuring EL access to grade-level content standards while simultaneously developing the language of the subject area. …

Lens: A Novel Image Processing-Based Approach For Low-Cost Segmentation Of Computed Tomography Scans Of Lungs, Monica Hinga

Computer Science ETDs

A staggering amount of data has been collected and analyzed since the beginning of the COVID-19 pandemic. Some of that data, however, particularly computed tomography (CT) scans of lungs, are difficult to analyze computationally. Segmentation of COVID-19 lesions provides researchers with insights into where lesions form, their volume, and in the case of time course data, how lesions grow as disease progresses. Spatial information, which has received little attention in the literature, has the potential to provide valuable insight to within-host viral and immune dynamics. Unfortunately, state-of-the-art supervised deep learning methods require labeled data, which can be prohibitively expensive to …

Spatial Single-Cell Identification Of Cell Layers Within Mouse Brain Using A Novel Spatially Resolved Transcriptomics Technology, Radha Swaminathan

Biomedical Engineering ETDs

Spatially resolved transcriptomics technologies investigate gene expression in the context of a tissue. While imaging-based technologies enable gene expression quantification at a single-cell level, only two NGS-based technologies are currently capable of single-cell resolution. Both Stereo-seq and Seq-Scope involve two rounds of sequencing: one to sequence the location of spatial barcodes and the other to obtain sequence of cDNA. Thus, the objective of the research study is to develop a technology that can capture transcripts from every cell of a tissue without the need for two rounds of sequencing. To this end, a capture surface or barcoded array (similar to …

Cryptic Population Structure And Differentiation In Three Species Of Alaska Claytonia, Robert W. Gabbitas

Biological Sciences

Beringia is an extensive geographic region noted for high levels of taxonomic complexity among closely related species. Three such species distributed across Beringia (Claytonia arctica, C. scammaniana, and C. sarmentosa,) exhibit low morphological differentiation between the species, while C. scammaniana includes two additional described morphologies of questionable taxonomic standing, C. "noatakensis" and C. "porsildii". Taxonomic boundaries within this group have been historically disagreed upon and are susceptible to confounding factors such as isolation-by-distance (IBD), discontinuous sampling of continuous variation, and low sequence divergence and morphological differentiation. To assist in species delimitation, multiple approaches combining phylogenomics and spatially explicit population genetics …

The Pain Of Helping: Crisis Response Teams Experiences With College Student Suicide, Audra E. Dowling

Graduate Theses, Dissertations, and Capstones

This qualitative multicase study explores the lived experiences of seven higher education professionals who serve or have served on a crisis response team at the time of a college student suicide. It asks the following research question: How has a college student suicide impacted the individual psychological needs (safety, trust, esteem, intimacy, control) of those serving on a crisis response team? Using constructivist self-development theory (McCann & Pearlman, 1990) as a lens, psychological needs have been analyzed as fulfilled needs or distorted needs across two interviews and three journaling prompts to assess the impact on seven participants in this qualitative …

Spatio-Temporal Variation Of Some Physico-Chemical Parameters Of Water In Lower Seybouse River (Northeastern Algeria), Adem Fraga, Amel Ketif, Karima Sifi, Aziz Laifa

Journal of Bioresource Management

Oued Seybouse is one of the most important rivers in Algeria. It runs for about 240 km, flows through sevenwilayas (Guelma, Annaba, Souk Ahras, El Tarf, Oum El Bouaghi, Constantine and Skikda) and 68 municipalities, 30 of which are fully included in its basin, and only partially for the others. OuedSeybouse’s water is exposed to multiple sources of pollution, as it directly receives industrial and urban discharges throughout its course. Also agriculture, which is intensively practiced in the lower valley of Seybouse, contributes to the pollution of this watercourse. In this context, we set out to assess the physical-chemical quality …

Thermokarst-Pond Plant Community Characteristics And Effects On Icewedge Degradation In The Prudhoe Bay Region, Alaska, Emily Watson-Cook

Biological Sciences

Ice-wedge thermokarst ponds are forming in many areas of the Arctic as a result of climate warming and infrastructure development. Previous research suggests that development of aquatic vegetation within these ponds may create negative feedbacks to the process of ice-wedge degradation by reducing pond-bottom temperatures and thaw depths. The objectives of this research were to characterize thermokarst-pond plant communities and to evaluate the effects of vegetation on within-pond sediment temperatures and thaw depths. Aquatic vegetation was sampled in 39 plots within 29 thermokarst ponds in the Prudhoe Bay region of Alaska. Five floristically distinct plant communities were identified: Calliergon richardsonii …

Musikah V’Ḥalil, “Music And The Flute”: The Use Of Jewish Prayer In Flute And Piano Music, Kathryn L. Rudnik

Dissertations, 2020-current

Music has been a part of Jewish life since Biblical times and remains an integral part of the culture. Within Jewish music, instruments have also played an important role historically. The flute has been traced through Judaism back to Biblical times; however, it has lost prominence in modern synagogue and religious services. As Western music has developed into the twenty-first century, composers, both Jewish and Gentile, have been exposed to the music of the Jewish communities, some of whom have utilized it in their own compositions. Compositions based on Jewish prayer melodies have brought up the question of whether the …

Identifying Systems Of Support In High Schools For Gender And Sexually Diverse Youth Living In Conservative Communities: A Phenomenological Qualitative Study, Nuriyah Bender

Masters Theses, 2020-current

Within the first few months of 2022 more than 300 anti-LGBTQ+ bills were introduced in states across the country (Human Rights Campaign, 2022). Many of these bills, some of which are now laws, discriminate against transgender students or restrict instruction and materials related to LGBTQ+ topics in schools. Gender and Sexually Diverse (GSD) students often do not feel safe in schools (Kosciw et al., 2020). Using a phenomenological approach, this qualitative study sought to identify the factors that helped GSD students feel the most supported in high schools in order to assist educators with actionable ways they can support students …

Comparison Of Arctic Alaska Historical Snow Data With Satellite-Derived Benchmarks And Model Results Using Ilamb Software, Mary Szatkowski

Engineering

Understanding and modeling the permafrost system, hydrologic cycle, energy balance, and biologic systems in the Arctic are dependent, in part, on snow depth and snow distribution. Point-source snow measurements provide ground-truth observations of snow depth and snow water equivalent, although these measurements may be limited in their spatial and temporal distributions. Satellite-derived remote sensing products and gridded model output provide spatial coverage of snow properties, but their applicability is affected by their balance of resolution, computational speed, and accuracy confidence. The goal of this research is to assess the performance of three snow data products derived from remote sensing techniques …

Integrated Multi-Omic Analysis Of Low-Grade Ovarian Serous Carcinoma Collected From Short And Long-Term Survivors, Kwong-Kwok Wong, Nicholas W Bateman, Chun Wai Ng, Yvonne T M Tsang, Charlotte S Sun, Joseph Celestino, Tri V Nguyen, Anais Malpica, R Tyler Hillman, Jianhua Zhang, P Andrew Futreal, Christine Rojas, Kelly A Conrads, Brian L Hood, Clifton L Dalgard, Matthew D Wilkerson, Neil T Phippen, Thomas P Conrads, George L Maxwell, Anil K Sood, David M Gershenson

Faculty, Staff and Student Publications

BACKGROUND: Low-grade serous ovarian cancer (LGSOC) is a rare disease that occurs more frequently in younger women than those with high-grade disease. The current treatment is suboptimal and a better understanding of the molecular pathogenesis of this disease is required. In this study, we compared the proteogenomic analyses of LGSOCs from short- and long-term survivors (defined as < 40 and > 60 months, respectively). Our goal was to identify novel mutations, proteins, and mRNA transcripts that are dysregulated in LGSOC, particularly in short-term survivors.

METHODS: Initially, targeted sequencing of 409 cancer-related genes was performed on 22 LGSOC and 6 serous borderline ovarian tumor samples. …

Developing A Quality Improvement Process: Impacting Patient Outcomes And Achieving Ambulatory Accreditation, Colleen E. Nappi

Doctors of Nursing Practice (DNP) Final Projects, 2020-current

Colon cancer is the second leading cause of cancer deaths in the United States (US) and colonoscopy is the best method for screening and detecting cancer before symptoms are present. A colonoscopies' ability to detect precancerous lesions or identify colorectal cancer (CRC) relies on patients having a high-quality bowel preparation. The US Multi Society Task Force (USMSTF) on colorectal cancer set quality standards for colonoscopy including bowel preparation quality, adenoma detection, and cecal intubation times. As a private gastroenterology practice in Northern Virginia was preparing for re-accreditation with the Accreditation Association for Ambulatory Health Care (AAAHC) it was determined that …

Improving Glycemic Control During The Covid-19 Pandemic: A Quality Improvement Project, Megan Henderson

Doctors of Nursing Practice (DNP) Final Projects, 2020-current

Diabetes is a costly, chronic health condition. The COVID-19 pandemic has significantly impacted the delivery of health care and exacerbated chronic health conditions, such as diabetes. Diabetes is one of the most significant comorbid conditions associated with poor COVID-19 outcomes (Cariou et al., 2020). Control of blood glucose levels during the COVID-19 pandemic has proved challenging to maintain. The purpose of this quality improvement project is to identify gaps in diabetic self-care and then implement a diabetic toolkit to improve self-efficacy of diabetes self-management. According to the American Diabetes Association (2022), self-management of diabetes, education, and support from providers is …

Improving Elementary Nutrition Education Curriculum In San Francisco - A Program Analysis Of The Food Education Project, Audrey N. Chang

Master's Projects and Capstones

Childhood obesity and food insecurity are problems within San Francisco, California. The purpose of this program analysis is to assess the Food Education Project (FEP), which is one of many projects addressing nutrition education and the long-term public health impact is to solve the problems of food insecurity and childhood obesity. Through primary data collection, students shared their honest feelings about food and were able to openly discuss what they know and do not know about food. A literature review was conducted through research from various databases from the University of San Francisco to identify not only current interventions but …

Problems And Suggestions To Improve Pronunciation Skills Of English Language Learners In China, Yi Fang

Master's Projects and Capstones

This project is based on the input hypothesis theoretical framework. The literature review explores the importance of pronunciation in English communication, problems with pronunciation and what causes them will be talked about for people learning English. Lastly, since the goal of this field project is to help English language learners in China improve their pronunciation, the third theme is about how to solve pronunciation problems and what learners need. One of the conclusions is that Chinese language learners' performance in the English language is significantly influenced by motivation, attitudes, parental support, openness to communication, and other linguistic and nonlinguistic factors. …