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Articles 59341 - 59370 of 302500
Full-Text Articles in Physical Sciences and Mathematics
Two Essays On Leveraging Analytics To Improve Healthcare, Deepika Gopukumar
Two Essays On Leveraging Analytics To Improve Healthcare, Deepika Gopukumar
Theses and Dissertations
The healthcare cost has continued to increase over the past few years despite various policies, efforts, and initiatives taken by the government. It is still projected to grow over the next few years by the Centers for Medicare and Medicaid Services (CMS). Readmissions have been a major contributor to the increase in costs and have always been a contributing factor. To get a perspective, considering the fact that at least 9% of individuals who had COVID-19 were likely to get readmitted shortly, according to a study by the Centers for Disease Control and Prevention (CDC) COVID-19 response team, along with …
Applications Of A U-Net Variant Neural Network: Image Classification For Vegetation Component Identification In Outdoors Images And Image To Image Translation Of Ultrasound Images, Adam Honts
Theses and Dissertations
Convolutional Neural Networks have been applied in many image applications, for both supervised and unsupervised learning. They have shown their ability to be used in an array of diverse use cases which include but are not limited to image classification, segmentation, and image enhancement tasks. We make use of Convolutional Neural Networks' ability to perform well in these situations and propose an architecture for a Convolutional Neural Network based on a network known as U-Net. We then apply our proposed network to two different tasks, a vegetation classification task for images of outdoors environment, and an image to image translation …
Exploring The Division Algorithm In Euclidean Domains With Exploding Dots, Nicholas Johnson
Exploring The Division Algorithm In Euclidean Domains With Exploding Dots, Nicholas Johnson
Theses and Dissertations
We will give an overview of the representation of place value and arithmetic known as Exploding Dots and use this idea to explore the division algorithm. It is well-known that the ring of integers, the ring of polynomials, and the ring of Gaussian integers are all examples of Euclidean domains and therefore possess a division algorithm. Exploding Dots beautifully illustrates how one can perform division in any base and how this naturally leads us to division of polynomials. We will show how this same idea of having a “base machine” can be used to perform division in the Gaussian integers. …
Part I: Development Of Small-Molecule-Based Probes For The Vitamin D Receptor; Part Ii: Development Of A Scalable Manufacturing Process For Orcein Dye, Tania Roseann Mutchie
Part I: Development Of Small-Molecule-Based Probes For The Vitamin D Receptor; Part Ii: Development Of A Scalable Manufacturing Process For Orcein Dye, Tania Roseann Mutchie
Theses and Dissertations
PART I:The vitamin D receptor (VDR) is a ligand-dependent transcription factor and member of the nuclear hormone receptor superfamily. VDR is expressed in the epithelia of endocrine organs, digestive system, bronchi, kidneys, and thymus, as well as being present in leukocytes and bone cells. Cell proliferation, cell differentiation, and immunomodulation, along with calcium and phosphate homeostasis, are all processes regulated by the receptor. Within the cell, VDR can be membrane-bound or located in the nucleus. Nuclear localization of VDR transpires following the binding of vitamin D metabolites, the most active of which is 1α,25-dihydroxyvitamin D3 (calcitriol). Within the nucleus, interactions …
An Internatural Communication Study Of Identity Within Nonprofit Animal Shelters, Samentha Emily Sepúlveda
An Internatural Communication Study Of Identity Within Nonprofit Animal Shelters, Samentha Emily Sepúlveda
Theses and Dissertations
In a two-part study of this dissertation project, I relied on qualitative research methods to examine the stories of animal shelter employees and volunteers—stories about animal shelters, animal sheltering, and shelter animals—to analyze communication processes that shape staff-identity, organizational-identity, and organizational identification. This project was guided by the communicative constitution of organizations (CCO) approach, which frames communication as not simply something that happens within an organization, but rather argues organization happens in communication. Furthermore, contributing to internatural communication research, this project explored identity and identification from a “more-than human” perspective. Relating CCO and internatural communication to research in this dissertation …
Examining Virtual Mathematics Instruction: A Comparative Case Study Of In-Service Elementary Teachers With Mathematics Anxiety And Mathematics Teaching Self-Efficacy, Telashay Swope-Farr
Examining Virtual Mathematics Instruction: A Comparative Case Study Of In-Service Elementary Teachers With Mathematics Anxiety And Mathematics Teaching Self-Efficacy, Telashay Swope-Farr
Theses and Dissertations
Mathematics Anxiety (MA) and Mathematics Teaching Self-Efficacy (MTSE) have been reported as factors related to teachers’ mathematics instruction. This study investigated MA and MTSE in in-service elementary teachers’ virtual mathematics instruction. A comparative case study design was used to understand the relationship between MA, MTSE, and their virtual mathematics instructional practices. Two in-service elementary teachers from an urban public charter school district in a large metropolitan city in the Midwest participated. I employed qualitative methods to examine the results from the Abbreviated Mathematics Anxiety Rating Scale (AMAS), an adapted version of a researcher-developed instrument called the Mathematics Teaching and Mathematics …
Fluid Flow And Deformation: Exploring The Relationships Between Fluid Flow, Deformation Mechanisms, Quartz Crystallographic Preferred Orientation Fabric Development, And Kinematics In The Willard Thrust Fault, Utah, Falyn Strey
Theses and Dissertations
Thirty-four quartz-rich samples were collected across the Willard thrust fault in Utah to explore the effects that fluid has on faulting. In particular, the relationships between fluid, deformation mechanisms, crystallographic preferred orientation (CPO) fabric development, and kinematic vorticity were investigated. A petrographic analysis of all 34 samples determined the relative contributions of brittle fracturing, crystal plasticity, and diffusional processes along with their possible relation to fluid interaction. Crystal plasticity dominates throughout most of the field area except where significant contributions from diffusive deformation occurs in rocks with significant mica concentrations and fine grain sizes, especially those located near the fault. …
Formation Of Oil-Particle-Aggregates: Numerical Model Formulation And Calibration, Linlin Cui, Courtney K. Harris, Danielle R.N. Tarpley
Formation Of Oil-Particle-Aggregates: Numerical Model Formulation And Calibration, Linlin Cui, Courtney K. Harris, Danielle R.N. Tarpley
VIMS Articles
When oil spills occur in turbid waters, the oil droplets and mineral grains can combine to form oil-particle aggregates (OPAs). The formation of OPAs impacts the vertical transport of both the oil and the mineral grains; especially increasing deposition of oil to the seabed. Though the coastal oceans can be very turbid, to date, few numerical ocean models have accounted for aggregation processes that form OPAs. However, interactions between oil and mineral aggregates may be represented using techniques developed to account for sediment aggregation. As part of Consortium for Simulation of Oil Microbial Interactions in the Ocean (CSOMIO), we modified …
Conceptual Framework Linking Resource Size And Recreational Use, Derek Kane
Conceptual Framework Linking Resource Size And Recreational Use, Derek Kane
School of Natural Resources: Dissertations, Theses, and Student Research
Participation in recreational activities at natural resource systems is important to many people. However, the use of these resource systems can cause negative social and ecological impacts. To manage the potential negative impacts of resource use, natural resource managers must have the ability to quantify and monitor the amount of use that is occurring. Unfortunately, it is difficult and costly to quantify and monitor resource system use. Natural resource management would benefit from uncovering a simple, easily accessible metric that could predict resource system use. The size of a resource system is related to social and ecological aspects of the …
The Predictability Of Personal, Academic, And Service Rated Factors On Perceived Academic Success In Mathematics Of College Students., David Wayne Fletcher
The Predictability Of Personal, Academic, And Service Rated Factors On Perceived Academic Success In Mathematics Of College Students., David Wayne Fletcher
Dissertations (2016-Present)
In recent years, student completion of the first-year and second-year college curriculum has become a significant barrier to student success and retention especially at Historically Black Colleges and Universities. Despite low pass and retention rates, many degree programs in the U.S. require at least one college-level mathematics course, and the failure in this math course has contributed disproportionately to the failure to complete the first and second year curriculum. The purpose of this study was to examine the predictability of the relationship between selected personal, academic, and service-related factors and the perceived academic success in mathematics among college students. Specifically, …
An Integrated Approach For The Assessment And Monitoring Of Land Deformation In The Riyadh City And Its Surroundings For Identifying The Controlling Factors, Abdulaziz Ibrahim Aljammaz
An Integrated Approach For The Assessment And Monitoring Of Land Deformation In The Riyadh City And Its Surroundings For Identifying The Controlling Factors, Abdulaziz Ibrahim Aljammaz
Dissertations
An integrated approach (remote sensing, field, geodesy, geology, and hydrogeology) was conducted to assess and monitor land deformation at Riyadh city and its surroundings. Two settings were investigated. The first, Jinadriyah area (1.5 km2), an urban area located east of Riyadh city, was selected to assess deformation associated with urbanization over desert lands. The second location was Al Kharj area (19,790 km2) to the south of Riyadh city, a reclaimed desert land that was selected to assess the deformation associated with agricultural groundwater extraction from fossil aquifers. My investigations revealed high subsidence rates (up to -30 …
Institutional Changes In Western Michigan University For Incorporation Of Education For Sustainability, Saman Khan
Institutional Changes In Western Michigan University For Incorporation Of Education For Sustainability, Saman Khan
Dissertations
Higher Education institutions (HEIs) have the potential to be significant contributors in the pursuit of a sustainable world through the incorporation of Education for Sustainability (EFS). However, HEIs are entrenched with structures and values that are often resistant to change. The literature reveals that instructors’ beliefs and institutional contexts are the two main factors that impact the implementation of institutional change for sustainability education. Western Michigan University (WMU) has created new required curriculum “WMU Essential Studies” (WES) for undergraduate students and they have targeted sustainability as an essential learning outcome, by integrating and applying it in content courses. Using a …
On Problems In Random Structures, Ryan Cushman
On Problems In Random Structures, Ryan Cushman
Dissertations
This work addresses two problems in optimizing substructures within larger random structures. In the first, we study the triangle-packing number v(G), which is the maximum size of a set of edge-disjoint triangles in a graph. In particular we study this parameter for the random graph G(n,m). We analyze a random process called the online triangle packing process in order to bound v(G). The lower bound on v(G(n,m)) that this produces allows for the verification of a conjecture of Tuza for G( …
Math And Voting: Voting Methods, Fair Representation, And The Electoral College, Sarah Nelson
Math And Voting: Voting Methods, Fair Representation, And The Electoral College, Sarah Nelson
Honors Scholar Theses
Voting is in integral part of any functioning democracy, but there exist more than just one way to count votes. Some voting methods use only a voter’s top-choice candidate, while others require a ranking of all candidates, most-preferred to least-preferred, from each voter. We examine some of these ranked-choice voting methods, including the anti-plurality method, Hare’s method, and Coomb’s method.
Because of the variety of voting methods, we introduce criteria, which allow for an evaluation of the advantages and disadvantages of each method. The criteria give various definitions for what “good” or “bad” voting methods look like, depending on context. …
The Effects Of The Nba Covid Bubble On The Nba Playoffs: A Case Study For Home-Court Advantage, Michael Price
The Effects Of The Nba Covid Bubble On The Nba Playoffs: A Case Study For Home-Court Advantage, Michael Price
Honors Scholar Theses
The 2020 NBA playoffs were played inside of a bubble in Disney World because of the COVID-19 pandemic. This meant that there were no fans in attendance, games played on neutral courts and no traveling for teams, which in theory removes home-court advantage from the games. This setting has attracted much discussion as analysts and fans debated the possible effects it may have on the outcome of games. Home-court advantage has historically played an influential role in NBA playoff series outcomes. The 2020 playoff provided a unique opportunity to study the effects of the bubble and home-court advantage by comparing …
Detecting The Phi Meson With Clas12, Paul Simmerling
Detecting The Phi Meson With Clas12, Paul Simmerling
Honors Scholar Theses
Analysis and detection of the phi(1020) vector meson from exclusive electroproduction decay into Kaons have been performed. Studying exclusive phi electroproduction is an ideal channel for quantifying the gluonic properties of the nucleon. This detection used the CEBAF Large Acceptance Spectrometer (CLAS12) at Thomas Jefferson National Accelerator Facility (JLab) with a 10.6 GeV longitudinally polarized electron beam and an unpolarized hydrogen target. Using the detected final state particles phase space, x_B, Q^2, W, and by developing specialized exclusivity cuts as well as several additional cuts, events containing the production of a phi(1020) meson were able to be extracted. Additionally, a …
Happening In Plain Sight: An Evaluation Of Sexual Harassment In Municipal Government Through A Case Study Of Newark, New Jersey, Hoween R. A. Flexer, Caitlin R. Louie
Happening In Plain Sight: An Evaluation Of Sexual Harassment In Municipal Government Through A Case Study Of Newark, New Jersey, Hoween R. A. Flexer, Caitlin R. Louie
School of Professional Studies
In the city of Newark, New Jersey, Sebrevious Scott, a participant in the New Jersey Reentry program was hired as part-time office assistant in the city's re-entry office. After being transferred to the city’s Parks and Grounds Departments, she started being sexually harassed, inappropriately touched and propositioned by her supervisor, Richard Kirkland. Scott made repeated attempts to report these actions through the appropriate channels. She was met with dismissal, resistance, and later retaliation. While working in this hostile environment she was also pursuing a full-time employment opportunity with the city upon the completion of the reentry program. Unfortunately, this never …
Employee Retention Rate, Lila Sorenson
Employee Retention Rate, Lila Sorenson
School of Professional Studies
This paper addresses the following problem regarding low employee retention rates in non-profit mental health organizations, specifically at NFI. The problem at hand is that majority of staff at NFI have an average length of stay of one year or less. The purpose of this paper is to address the current problem and hypothesize factors that could impact the low retention rates. Additionally, the purpose of the paper is to brainstorm potential solutions regarding the low retention rates and suggestions of how to implement the solutions. The documents contained in this paper include data analysis of employee average length of …
An Analysis Of The Applications Of Technology To Health Care Within The Caribbean And Latin America, Chineme Ezema
An Analysis Of The Applications Of Technology To Health Care Within The Caribbean And Latin America, Chineme Ezema
School of Professional Studies
This project aims to investigate and document the evolution of health technology applications and uses within the regions of Latin America and the Caribbean. Originally inspired by the Cayman Islands’ thus far successful handling of the Coronavirus pandemic, I was eager to explore how the applications of technology to the field of healthcare have existed within the region currently and over time. With this foundation, I then explored the regions’ trajectory in terms of technological growth and what the future may hold for these countries and communities.
Sports Data Analysis – Application Of Sports Data In Athletics, Zhong Zhuang
Sports Data Analysis – Application Of Sports Data In Athletics, Zhong Zhuang
School of Professional Studies
No abstract provided.
Broadband In Rhode Island, Deborah Ruggiero
Broadband In Rhode Island, Deborah Ruggiero
School of Professional Studies
Broadband is the 21st century fiber-optic highway in our technology and information economy. The need for high-speed fiber-optic connectivity is critical for economic development, education, business, e-learning, and telehealth
Title Ix: Perceptions And Utilization On U.S. College Campuses, Emma Narkewicz
Title Ix: Perceptions And Utilization On U.S. College Campuses, Emma Narkewicz
School of Professional Studies
The research study investigated student perceptions and utilization of Title IX services on U.S. university and college campuses, testing the hypothesis that if students hold negative perceptions of Title IX offices, then they will not report campus sexual violence they experience to Title IX offices. There are currently high rates of sexual violence on college campuses but very low rates of reporting. Current or former U.S. college students aged 18-30 (N = 47) completed a mixed methods anonymous survey composed of Likert scale and open response questions. Participants were asked about prior interactions with Title IX offices and their perceptions …
Detecting Bots Using A Hybrid Approach, Edmund Kofi Genfi
Detecting Bots Using A Hybrid Approach, Edmund Kofi Genfi
Theses, Dissertations and Culminating Projects
Artificial intelligence (AI) remains a crucial aspect for improving our modern lives but it also casts several social and ethical issues. One issue is of major concern, investigated in this research, is the amount of content users consume that is being generated by a form of AI known as bots (automated software programs). With the rise of social bots and the spread of fake news more research is required to understand how much content generated by bots is being consumed. This research investigates the amount of bot generated content relating to COVID-19. While research continues to uncover the extent to …
A Web Application To Disseminate Repatriation And Travel Information About African Countries, Daniel Otuo-Acheampong
A Web Application To Disseminate Repatriation And Travel Information About African Countries, Daniel Otuo-Acheampong
Theses, Dissertations and Culminating Projects
Africa is a continent with incredibly diversified cultures, landscapes, and people. Due its vastness, it can be difficult to assess accurate travel related information about African countries. The purpose of this project is to build a website that will serve as an African destination information insider. African countries are drawing people from all around the world, and this is evident in the formulation of initiatives to attract people to the continent during the past decade. Prime examples of these initiatives include Ghana’s Year of Return initiative and Nigeria’s door of return. This project, that entails the design and development of …
Secondary Teachers’ Noticing Of Students’ Mathematical Thinking As They Participate In A Professional Development Program Centered On Task-Based Student Interviews, Gurkan Kose
Theses, Dissertations and Culminating Projects
Teacher’s noticing of students’ mathematical thinking has been an important focus of research in the past two decades (e.g., Jacobs et al., 2010; Sherin et al., 2011). Noticing matters, but it is not an end in itself (Schoenfeld, 2011). It is operationalized within the context of teachers’ dispositions and knowledge which shape decisions teachers make while responding to student thinking and planning the next instructional steps. In order for teachers to adapt productive beliefs about how children learn and shift to student-centered instruction, they need to acknowledge the importance of understanding students' existing conceptions of mathematical ideas (Carpenter & Lehrer, …
A Study On Formal Verification For Javascript Software, Zachary S. Rowland
A Study On Formal Verification For Javascript Software, Zachary S. Rowland
Honors Theses
Information security is still a major problem for users of websites and hybrid mobile applications. While many apps and websites come with terms of service agreements between the developer and end user, there is no rigorous mechanism in place to ensure that these agreements are being followed. Formal methods can offer greater confidence that these policies are being followed, but there is currently no widely adopted tool that makes formal methods available for average consumers. After studying the current state-of-the-art in JavaScript policy enforcement and verification, this research proposes several new techniques for applying model checking to JavaScript that strikes …
Mechanical Behavior Of Cyclo-18 On Nickel And Copper Substrates, Reagan Michael Kraft
Mechanical Behavior Of Cyclo-18 On Nickel And Copper Substrates, Reagan Michael Kraft
Mechanical Engineering Undergraduate Honors Theses
Carbyne, an -hybridized allotrope of carbon, has been the subject of many studies recently due to its incredible mechanical properties and small size. More recently, another -hybridized allotrope known as cyclo-18, has gained interest. In this study, computational molecular dynamics will be used to determine the mechanical properties of cyclo-18. Peeling and shearing tests of the molecule will be conducted on nickel and copper, which are respectively active and less-active transition metals. Additionally, a carbyne chain of equal length will undergo the same tests on the copper substrate to compare the mechanical properties of the two. The results conclude that …
Design And Control Of A Peristaltic Pump To Simulate Left Atrial Pressure In A Conductive Silicone Model, Jeremy Collins
Design And Control Of A Peristaltic Pump To Simulate Left Atrial Pressure In A Conductive Silicone Model, Jeremy Collins
Mechanical Engineering Undergraduate Honors Theses
According to the CDC, atrial fibrillation is responsible for more than 454,000 hospitalizations and approximately 158,000 deaths per year. A common treatment for atrial fibrillation is catheter ablation, a process in which a long flexible tube is guided through the femoral artery and to the source of arrhythmia in the heart, where it measures the electrical potential at various locations and converts problematic heart tissue to scar tissue via ablation. This paper details the design and control of a low-cost ($400) peristaltic pump system using repetitive control to replicate blood pressure in the left atrium in a conductive silicone model …
Deep Learning Methods For Image Restoration And Reconstruction, Zahra Anvari
Deep Learning Methods For Image Restoration And Reconstruction, Zahra Anvari
Computer Science and Engineering Dissertations
The problem of image reconstruction and restoration refers to recovering the clean images from corrupted ones. Corruption or degradation can occur due to atmospheric conditions such as rain, fog, mist, snow, dust, and air pollution or technical drawbacks of imaging devices such as motion blurriness, compression noise, low-resolution, etc. Image reconstruction algorithms aim at reducing these artifacts and degradation and generate clear images. Scenes captured under bad weather conditions such as rain, fog, mist, and haze suffer from visibility issues thus introduce obstacles for computer vision applications, e.g. object detection, recognition, tracking, and segmentation. In this dissertation, we focus on …
Kopos: A Framework To Study And Detect Physical And Cognitive Fatigue Concurrently, Varun Ajay Kanal
Kopos: A Framework To Study And Detect Physical And Cognitive Fatigue Concurrently, Varun Ajay Kanal
Computer Science and Engineering Dissertations
Fatigue is one of the most prevalent phenomena in human beings, and yet its detection is highly subjective and poorly understood. The phenomenon of fatigue has a huge impact on performance, the ability to execute tasks safely and correctly, and the ability to retain or secure a job. Fatigue can be classified into two types: physical and cognitive fatigue. Physical fatigue may occur due to excessive physical exertion, while cognitive fatigue may occur due to excessive mental exertion. Historically, these two types of fatigue have been studied independently. However, in the real world, although these often occur at the same …