Digital Commons Network^™

Subchronic Oral Cylindrospermopsin Exposure Alters The Host Gut Microbiome And Is Associated With Progressive Hepatic Inflammation, Stellate Cell Activation, And Mild Fibrosis In A Preclinical Study, Punnag Saha, Macayla Upright, Dipro Bose, Subhajit Roy, Ayushi Trivedi, Madhura More, Geoff Scott Ph.D., Bryan W. Brooks, Saurabh Chatterjee

Faculty Publications

Epidemiological studies have reported a strong association between liver injury and incidences of hepatocellular carcinoma in sections of humans globally. Several preclinical studies have shown a strong link between cyanotoxin exposure and the development of nonalcoholic steatohepatitis, a precursor of hepatocellular carcinoma. Among the emerging threats from cyanotoxins, new evidence shows cylindrospermopsin release in freshwater lakes. A known hepatotoxin in higher concentrations, we examined the possible role of cylindrospermopsin in causing host gut dysbiosis and its association with liver pathology in a mouse model of toxico-pharmacokinetics and hepatic pathology. The results showed that oral exposure to cylindrospermopsin caused decreased diversity …

Power In Portrayal: An Exploration Of The Evolving Cold War Relationship Between Germany And America Through Film, Kaleb Wentz

Electronic Theses and Dissertations

The end of the Second World War brought many questions to the United States. One of the greatest among these was what to do with defeated Germany. Many clamored for the dissolution of the former Nazi State and the shameful humbling of its people while others recognized the value of a revitalized Germany as an ally against the looming threat of an emboldened and empowered postwar Soviet Union. Though retribution held sway immediately following the war, the Cold War consensus of an alliance with West Germany and a reimagining of the German people as victims rather than perpetrators won out …

Community College Faculty’S Perceptions Of Culturally Responsive Teaching, Sarah Tolbert-Hurysz

Electronic Theses and Dissertations

This qualitative study sought to understand community college faculty’s perceptions of and experiences with culturally responsive teaching. Participants were full- and part-time faculty currently employed at community colleges in the Southeastern United States and purposefully selected to provide information-rich data. Data collected from the semi-structured, in-depth interviews with the participants were coded and thematically analyzed. Emerging themes included faculty’s inclusion of varied categories of cultural diversity when describing students; limited knowledge related to culturally responsive teaching; perception that culturally responsive teaching is centered on connecting and building relationships with students; belief in the value of providing students exposure to different …

Perceptions Of Middle School Teachers Regarding Differentiation Instruction, Karen Mclerran

Electronic Theses and Dissertations

The purpose of this qualitative phenomenological study was to examine the perceptions of middle school teachers regarding differentiation of instruction for students with mild to moderate disabilities. Although there has been little documentation in the literature regarding instructional differentiation five factors that facilitate change have been identified in the framework.

Data collection strategies included one-on-one semi-structured interviews and questionnaires. Analysis of data occurred in three phases: (a) transcribing interviews, (b) member checking of the transcripts, (c) coding-recoding of the data. The analysis of data was based on the theoretical proposition that student achievement, positive behaviors, and increased learner motivation fosters …

Borderline Personality Disorder And Violent Crime: The Moderating Role Of Sex And Race, Genevieve Allison

Electronic Theses and Dissertations

People receiving treatment for substance use disorders (SUD) are at risk of justice involvement. Although it is well-established that borderline personality disorder (BPD) increases risk for criminal involvement, it is unclear whether this relationship exists among people with SUDs. Furthermore, prior research has found sex and race differences in the relationships between BPD and justice involvement as well as violence, but these moderators have not been explored within a substance using sample. The current study utilized a sample receiving SUD treatment to examine whether BPD is associated with prior violent charges and, if race and sex moderated this relationship. Results …

Investigation Of Preoxygenation Methods In Cesarean Surgeries With The Oxygen Reserve Index, Duygu Kocakulak, Gamze Küçükosman, Bengü Gülhan Köksal, Çağdaş Baytar, Rahşan D. Okyay, Keziban Bollucuoğlu, Tuğçe Öztürk, Özcan Pişkin, Hilal Ayoğlu

Saudi Medical Journal

Objectives: To investigate preoxygenation methods that were carried out for 3 minutes (min) at tidal volume and 30 seconds (s) with the 4 deep vital capacity technique using the Oxygen Reserve Index (ORI) among pregnant women. Methods: This prospective study was carried out between December 2020 and 2021. The patients were randomly divided into 2 groups with the provision of preoxygenation using 100% O 2 at a rate of 10 L.min-1 for 3 min at normal tidal volume (Group 1) and 30 s with the 4 deep vital capacity technique (Group 2). For the pregnant women who underwent routine anesthesia …

Employees’ Job Positions, Psychological Ownership, And Commitment To Change, Bo Zhang

Dissertations and Theses Collection (Open Access)

Organisational change is crucial to the development of enterprises. However, when enterprises are implementing major changes, there are great differences in the attitudes and behaviours of employees in different job positions toward changes. Research in this area is insufficient. Therefore, this dissertation investigates the problem of employee commitment amid enterprises’ organisational changes. This dissertation is committed to determining why employees at different levels and with different roles have different degrees of commitment to change and confirming the role of job positions in affecting employees’ psychological ownership of the change process. According to the findings, the impact of employees’ job rank …

After-School Connectedness, Racial–Ethnic Identity, Affirmation, And Problem Behaviors, Danielle A. Augustine, Emilie Smith, Dawn P. Witherspoon

Journal of Youth Development

After-school programs are potential contexts that may promote positive youth development (PYD) and reduce problem behaviors among African American children. One way after-school programs may be associated with reduced problem behaviors is by fostering an affirming sense of identity. Prior research on racial–ethnic identity among African American children and adolescents has shown that a positive and affirming sense of identity is related to less maladaptive coping, yet little is known about how after-school programs may foster an affirming sense of identity and lead to reduced problem behaviors. The current study adds to this discourse by investigating how children’s connection to …

Hyperglycemic Hyperosmolar Syndrome (Hhs), Children's Mercy Kansas City

Clinical Pathways (Formally Known As Care Process Models)

No abstract provided.

Rapid Metabolism Fosters Microbial Survival In The Deep, Hot Subseafloor Biosphere, F. Beulig, F. Schubert, R. R. Adhikari, C. Glombitza, V. B. Heuer, K. U. Hinrichs, K. L. Homola, F. Inagaki, B. B. Jørgensen, J. Kallmeyer, S. J.E. Krause, Y. Morono, J. Sauvage, A. J. Spivack, T. Treude

Graduate School of Oceanography Faculty Publications

A fourth of the global seabed sediment volume is buried at depths where temperatures exceed 80 °C, a previously proposed thermal barrier for life in the subsurface. Here, we demonstrate, utilizing an extensive suite of radiotracer experiments, the prevalence of active methanogenic and sulfate-reducing populations in deeply buried marine sediment from the Nankai Trough subduction zone, heated to extreme temperature (up to ~120 °C). The small microbial community subsisted with high potential cell-specific rates of energy metabolism, which approach the rates of active surface sediments and laboratory cultures. Our discovery is in stark contrast to the extremely low metabolic rates …

Diabetic Ketoacidosis, Children's Mercy Kansas City

Clinical Pathways (Formally Known As Care Process Models)

No abstract provided.

2022 Author/Title Index To The Journal Of The Michigan Dental Association, Jackie Hammond

The Journal of the Michigan Dental Association

The Journal of the Michigan Dental Association annually publishes an index of the year’s articles listed by title and author. This resource is intended to aid in content searches.

Potential Fitness Trade-Offs Of Elevated Esterase Activity Associated With Insecticide Resistance In The Mosquito Culex Quinquefasciatus, Timothy Schulte

Electronic Theses, Projects, and Dissertations

One of the current major issues in the control of vector-borne disease is resistance to insecticides. Resistance to one or more insecticides has appeared in over 580 different arthropod species. Widespread resistance has led to the field of Insecticide Resistance Management (IRM). The goal of IRM is to develop insecticide-use strategies that prevent or slow down the evolution of resistance. Computer models have shown that more effective IRM strategies rely on the assumption that resistance carries a fitness cost in the absence of insecticide use.

In the mosquito Culex quinquefasciatus resistance to certain organophosphate insecticides is caused by an increased …

Lung Cancer Type Classification, Mohit Ramajibhai Ankoliya

Electronic Theses, Projects, and Dissertations

Lung cancer is the third most common cancer in the U.S. This research focuses on classifying lung cancer cells based on their tumor cell, shape, and biological traits in images automatically obtained by passing through the

convolutional layers. Additionally, I classify whether the lung cell is adenocarcinoma, large cell carcinoma, squamous cell carcinoma, or normal cell carcinoma. The benefit of this classification is an accurate prognosis, leading to patients receiving proper therapy. The Lung Cancer CT(Computed Tomography) image dataset from Kaggle has been drawn with 1000 CT images of various types of lung cancer. Two state-of-the-art convolutional neural networks (CNNs) …

Enterprise Risk Management: Small And Medium Business, Vasili Krespis

Electronic Theses, Projects, and Dissertations

This culminating experience project examined common risk management trends and challenges that SMEs face and provided methods and tools that could limit threats and impact of unforeseeable events. This project demonstrates why business owners should use a risk management planning framework. The research questions were: (Q1) What are risk identification strategies which do not overstrain SMEs' limited resources? (Q2) How may risk analysis be performed effectively in SMEs? (Q3) How does the SMEs risk management system change over time? (Q4) What are the most effective risk analysis techniques and strategies for SMEs with limited resources?

A case study was examined …

Analysis For An Efficient Operation Of Solar Power Plants In India Using Different Variables/Parameters, Sonal Bansi Shinde

Electronic Theses, Projects, and Dissertations

Vast renewable energy facilities rely heavily on accurate predictions of future solar power output.  This study investigated the various factors causing poor, inefficient operation of Solar Plants and different methods to identify underperforming equipment. The main questions are: Q1: How can we predict electricity generation over the next several days so that the plant can run at peak efficiency? Q2: How can we figure out the exact maintenance needs of any power plant?  Q3: How do we identify faulty equipment to improve its efficiency to improve overall performance? and Q4: What are the different factors that are causing an inefficient …

A Study Of Heart Disease Diagnosis Using Machine Learning And Data Mining, Intisar Ahmed

Electronic Theses, Projects, and Dissertations

Heart disease is the leading cause of death for people around the world today. Diagnosis for various forms of heart disease can be detected with numerous medical tests, however, predicting heart disease without such tests is very difficult. Machine learning can help process medical big data and provide hidden knowledge which otherwise would not be possible with the naked eye. The aim of this project is to explore how machine learning algorithms can be used in predicting heart disease by building an optimized model. The research questions are; 1) What Machine learning algorithms are used in the diagnosis of heart …

Professional Development For K-6 Teachers, Rebecca S. Monroe

Electronic Theses, Projects, and Dissertations

For over a century, educators and politicians have been working on educational reform for various reasons and with the hope of a plethora of outcomes. Since at least the late twentieth century, educational reform has been undertaken for the purpose of increasing students’ academic achievement. While a shift in focus of teaching to a focus on learning has occurred, we know changes in the classroom and with classroom teaching still needs to occur. One recent incarnation of reform has been focused on the teacher and the professional development they receive.

Currently, the United States spends over 18 billion dollars annually …

Big Data For Comprehensive Analysis Of Real Estate Market, Yonglin Xiao

Electronic Theses, Projects, and Dissertations

This Culminating Experience Project explored the application of big data in the real estate industry in order to address the problem of analyzing the accurate property estimates value. The research questions were: (Q1): What are the benefits and advantages of utilizing big data in the real estate market? (Q2): What are the trends in the application of big data in the real estate market? (Q3): What are the challenges in applying big data in the real estate market? (Q4): What are the methods and processes of applying big data in appraisal of assets in the real estate market? To answer …

Novel Technologies And Their Effect On The Customer Journey: Customers' Sentiment With Tesla App, Andrew Jaymes

Electronic Theses, Projects, and Dissertations

This culminating experience project explores how novel technologies, such as artificial intelligence (AI), the Internet of Things (IoT), and virtual and augmented reality (VR/AR), impact customer experience. The customer journey framework was used to analyze customers' responses to interactions with novel Technologies integrated into Tesla electric vehicles. After gathering customer response data from the Tesla Motors subreddit page, we were able to score customer experiences with the Tesla app, over-the-air software updates, and full self-driving features, using the NRC sentiment lexicon. Our results showed customers tended to express more positive sentiments than negative sentiments when describing their experiences with these …

Panodepth – Panoramic Monocular Depth Perception Model And Framework, Adley K. Wong

Master's Theses

Depth perception has become a heavily researched area as companies and researchers are striving towards the development of self-driving cars. Self-driving cars rely on perceiving the surrounding area, which heavily depends on technology capable of providing the system with depth perception capabilities. In this paper, we explore developing a single camera (monocular) depth prediction model that is trained on panoramic depth images. Our model makes novel use of transfer learning efficient encoder models, pre-training on a larger dataset of flat depth images, and optimizing the model for use with a Jetson Nano. Additionally, we present a training and optimization framework …

Detection Methods, Occupancy Rates, Management And Conservation For Rodents, Jaran Hopkins

Master's Theses

Chapter 1. Species’ occurrences are dependent on a variety of habitat characteristics, including physical landscape factors and anthropogenic land use and change. Understanding the influence of habitat attributes on species occurrence is essential to successful wildlife and habitat management, specifically in areas with active human use. We tested the influence of vegetation alliance, fragmentation, and human recreation in the form of off-highway vehicles (OHV) in an area of active land management in coastal California, with a focus on the occurrences of six small mammal species. The area is composed of sand dunes subject to natural habitat fragmentation. OHV recreation occurs …

Predicting Startup Success Using Publicly Available Data, Emily Gavrilenko

Master's Theses

Predicting the success of an early-stage startup has always been a major effort for investors and venture funds. Statistically, there are about 305 million total startups created in a year, but less than 10% of them succeed to become profitable businesses. Accurately identifying the signs of startup growth is the work of countless investors, and in recent years, research has turned to machine learning in hopes of improving the accuracy and speed of startup success prediction.

To learn about a startup, investors have to navigate many different internet sources and often rely on personal intuition to determine the startup’s potential …

Implementation Of The Plan For Every Part (Pfep) Tool And Additional Methodologies For Operational Improvement., Bernardo Luis Borges Pedroso

Masters Theses

The work focused on the inventory management of Dimplex Thermal Solutions, which had a profoundly overstocked warehouse and was suffering from significant operating expenses, due to the absence of a grounded ordering policy and the need to rent external storage space, respectively.

The main objective of the thesis was to solve the primarily mentioned problems, by constructing a Plan For Every Part (PFEP) tool, followed by the application of an inventory policy and the proposal of a redesigned warehouse layout, to compute ideal stock values and calculate the footprint requirements for Dimplex’s updated inventory levels, respectively. The execution step concerned …

A Geographic Segmentation Approach For Satellite-Derived Bathymetry, Juliane Jussara Affonso

Master's Theses and Capstones

Safety of navigation depends on our knowledge of seabed and its features, and, as such, any improvements in deriving bathymetry for nautical chart updating are of major importance. Satellite-Derived Bathymetry (SDB) is an alternative to traditional surveys using ship and airborne sensors, particularly for mapping remote and shallow areas, due to its reduced cost and the absence of navigational risks in very shallow and unsurveyed areas. However, the accuracy of SDB can be judged as relatively low for nautical charting purposes and, therefore, is mostly used for reconnaissance or/and for filling gaps in remote or very shallow areas. One of …

Implementing A Reference Backscatter Calibration Technique On A Multi-Sector Multibeam Echosounder, Rui Miguel Aleixo Miguel Cândido

Master's Theses and Capstones

Increasingly, national hydrographic agencies are committing to routine acquisition of seabed backscatter strength estimates from multibeam echosounders (MBES) as part of national programs for seabed characterization. As part of their bathymetric survey mandate, these agencies have a long history of sounding quality control utilizing absolute and relative calibration (reference surfaces and crossover comparisons). Equivalent quality control is, however, not yet in place for managing seabed backscatter strength measurements, as the majority of the collected data is not absolutely referenced.Herein, a new technique for cross-calibrating a MBES with a reference calibrated split beam echosounder (SBES) was implemented. Broadband reference bottom backscatter …

Perceived Gender Discrimination In The United States Air Force, Linzi Gail Eppinger

Master's Theses and Capstones

While the existence of gender discrimination in the Air Force is well known, previous research had not examined how active-duty Air Force members define gender discrimination and how service members differentiate instances of gender discrimination from gender-based harassment. This study drew on qualitative interviews with 25 Air Force service members to provide a rich account of their perceptions of discrimination and harassment. From this research, several common attributes of gender discrimination became clear. Active-duty Air Force women were more aware of instances of gender discrimination than men, participants perceived being a gender minority in the workplace is a risk factor …

Development Of A Continuous-Tension-Compression Machine For Testing Thin Sheet Metal, Jacqueline Mcnally

Master's Theses and Capstones

This thesis details the design and manufacturing of a custom testing machine for thin sheet metal undergoing continuous tension-compression (CTC) loading. The CTC machine concept is based on using a set of intermeshing dies to continuously support the thin sheet specimen against buckling during the test. The upper set of dies are held in place by a pneumatic actuator of 25 kN capacity. The dies can move freely relative to one another, so that both tension and compression can be performed in the same setup. A hydraulic actuator of 50 kN capacity displaces one side of the intermeshed dies. The …

Steganography And Cryptography Techniques Based Secure Data Transferring Through Public Network Channel, Mohammed Abdullah Naser, Saif M. Kh. Al-Alak, Ahmed Mohammed Hussein, Majid Jabbar Jawad

Baghdad Science Journal

Attacking a transferred data over a network is frequently happened millions time a day. To address this problem, a secure scheme is proposed which is securing a transferred data over a network. The proposed scheme uses two techniques to guarantee a secure transferring for a message. The message is encrypted as a first step, and then it is hided in a video cover. The proposed encrypting technique is RC4 stream cipher algorithm in order to increase the message's confidentiality, as well as improving the least significant bit embedding algorithm (LSB) by adding an additional layer of security. The improvement of …

A Green Synthesis Of Iron/Copper Nanoparticles As A Catalytic Of Fenton-Like Reactions For Removal Of Orange G Dye, Ahmed K Hassan, Mohammed A Atiya, Imad M Luaibi

Baghdad Science Journal

This research paper studies the use of an environmentally and not expensive method to degrade Orange G dye (OG) from the aqueous solution, where the extract of ficus leaves has been used to fabricate the green bimetallic iron/copper nanoparticles (G-Fe/Cu-NPs). The fabricated G‑Fe/Cu-NPs were characterized utilizing scanning electron microscopy, BET, atomic force microscopy, energy dispersive spectroscopy, Fourier-transform infrared spectroscopy and zeta potential. The rounded and shaped as like spherical nanoparticles were found for G-Fe/Cu‑NPs with the size ranged 32-59 nm and the surface area was 4.452 m2/g. Then the resultant nanoparticles were utilized as a Fenton-like oxidation catalyst. The degradation …