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A Feasibility Study Of Drilling Fluid Slippage For Wellbore Displacement, John Johnson

LSU Master's Theses

In the ideal plug-flow mode viscoplastic drilling fluids display uniform frontal velocity due to wall slippage (at very low flowrate limited by the fluid’s yield strength). The flow rate could be increased by raising the yield strength that would make the fluid best candidate for frontal displacement. Based on this concept the study qualifies wall slippage effect for wellbore displacement. Using a conceptual model of fluid motion between two parallel plates defines maximum velocity as a function of shearing rate and yield stress. Conversion to coaxial geometry gives practical formulas for fluid testing with rotational viscometer. A new analysis of …

Concealment And Darkness In Horace Walpole’S The Castle Of Otranto, Alexandra G. Speck

Global Tides

This paper examines the relationship between darkness and fear in Horace Walpole’s The Castle of Otranto, widely recognized as the first Gothic novel. Walpole wrote Otranto soon after the rise of Enlightenment thought, which stressed sensory observation as the foundation for human reason. Walpole engages with Enlightenment ideas through Otranto’s dark setting, which invokes fear and irrationality in the heroine, Isabella.

Tracking Walpole’s manipulation of light and darkness through the narrative, this paper illustrates how darkness inspires more fear in Isabella than either the novel’s infamous supernatural dangers or its human villain, Prince Manfred, who pursues her through …

Characterization Of Phase Transition Behavior In Vo2 Thin Films, Eric Min Myat

John Wesley Powell Student Research Conference

Our goal is to characterize the phase transition behavior of vanadium dioxide (VO2) thin films, specifically focusing on the metal-insulator transition, through electrical resistance measurements. We will synthesize high-quality VO2 thin films using a sol-gel process to prepare precursor solutions, spin coating for uniform thin film deposition, and controlled annealing to tune the properties and phase transition behavior of VO2. The resistivity of the thin films will be measured using a four-point-probe technique, specifically the Van der Pauw method. This project aims to provide insights into the fundamental properties of VO2 thin films and contribute to the development of novel …

Impact Of Current Standards On General Construction Cements To Ensure Reduced Energy Intensity And Co2 Emissions, Geun-Seong Lee, Zebo Babakhanova, Mastura Aripova

CHEMISTRY AND CHEMICAL ENGINEERING

The cement industry is currently making various efforts to reduce CO2 emissions. The blended cement produced by lowering the amount of clinker with using mineral additives has expanded as the trials to reduce CO2 emission as well as to utilize its advantageous properties. Standards related to the blended cements have been already set in all regions of the world. It is evaluated and reviewed the standards of the blended cements according to the types and compositions of mineral additives that can be blended, which are covered by the European Standard (EN 197-1:2011), the Euro-Asian Standard (GOST 31108-2020) and the U.S. …

Rheological Properties Of Modified Basalt Glass, Yury Pavliukevich, Ludmila Pаpko, Ekaterina Trusova

CHEMISTRY AND CHEMICAL ENGINEERING

In this paper the effect of modifying components containing Al2O3, B2O3, SiO2 and CaO introduced in various combinations on high and low-temperature viscosity values of basalt glass has been studied. It is shown that the introduction of boron-containing components in compositions with basalt leads to a significant decrease in the viscosity of the basalt melt at all temperature ranges. Influence of modifiers on low-temperature viscosity values of basalt glass correlates with their influence on high-temperature viscosity. Based on experimental values of rheological properties and crystallization ability of modified basalt melts, the modes of basalt fibre production have been determined.

Pickering Emulsions Stabilized By Clay Microparticles And Surfactants, Ayaulym Yertayeva, Akbota Adilbekova, Paul Luckham, Kuanyshbek Musabekov

CHEMISTRY AND CHEMICAL ENGINEERING

The main purpose of this work is to study emulsions stabilized by microparticles of kaolin clay of the Alekseevskoye deposit and bentonite clay of the Tagansky deposit to obtain safe, environmentally friendly and cost-effective stabilizers of natural origin, which can be used for the preparation of cosmetic emulsions. The article shows the oxide composition and mineralogical composition of clays. By analyzing the particle size distribution, the average particle sizes of kaolin and bentonite clays were determined. The effect of nonionic surfactants (Tween 85, Synperionic 13/6), the oil phase (decane, squalane) nature on the stability of the emulsion were studied. Using …

Black Female Educator: Underappreciated, Overworked, And The Indelible Quest For Agency Within The Educational System, Sharena Stevenson

Dissertations

In this study, I examined my experiences in the educational system as a Black female who feels overworked and underappreciated, like I must constantly prove my credibility and fight stereotypes, and feel strain of trying to remain healthy, physically and mentally, while trying to find agency in the educational system. I recount the trauma I faced as a Black female student and then as a Black female educator. I documented my experiences from my time in K-12 and my years as an educator. I utilized the Critical Race Theory tenet, persistence of racism, Intersectionality, and Black feminist thought as the …

An Examination Of The Impediments To Implementing Student-Centered Teaching Methods In Public Schools, Nicole R H Adewale, Robert L. Bloch, Garry D. Gibbs

Dissertations

In education, traditional methods have long relied upon static textbooks and blackboards to impart knowledge to students. Unfortunately, the lack of dynamism with this approach has failed to foster creativity, motivation, inquiry, individualization, and other practices crucial to serving diverse learners, especially Black children. We sought to uncover barriers and potential solutions to this problem by elevating the voices of educators, from classroom teachers to building and district administrators, at a predominantly African-American suburban secondary school in the Midwest.

We designed a qualitative research study to answer a single yet layered research question: What impedes Black students from experiencing and …

Stroke-Related Mental Health Challenges And Interventions: Strategies For Holistic Recovery, Christopher Walsh, Sam Lee

MOT Student Capstones

This capstone project examines the relationship between post-stroke and mental health. It presents the necessity for a holistic and client-centered approach in the recovery process. Through a mixed-methods approach combining a literature review and empirical research, including surveys of stroke survivors, caregivers, and practitioners, the study shows the prevalence of depression and anxiety post-stroke and the potential benefit of comprehensive mental health support. The findings emphasize the importance of community, spirituality, and proactive education in enhancing mental well-being. The effectiveness of specific interventions for this population was found to be variable, which warrants the use of personalized assessments and intervention …

Assessment And Validation: An Updated Climate Change Plausibility Perception Measure, Melike Hanedar, Gizem Ozyazici, Gaye Defne Ceyhan

Earth & Environmental Sciences - All Scholarship

Plausibility perceptions about climate change influence learner engagement, motivation, and knowledge acquisition, thereby shaping the effectiveness of climate change education. The Plausibility Perception Measure (PPM) was originally developed following the Fourth Assessment Report of the Intergovernmental Panel on Climate Change in 2007. There was a need to update the scale to measure individuals' plausibility perceptions regarding the current climate crisis. This study updated the PPM scale to reflect the IPCC's 2022 report on impacts, adaptation, and vulnerability. The updated PPM scale is a ten-point Likert scale consisting of 15 items. Data were collected from 330 pre-service teachers at a public …

Evaluation Of Alginate Hydrogel Microstrands For Stromal Cell Encapsulation And Maintenance., Sujith Chander Reddy Kollampally, Xulang Zhang, Nicholas Moskwa, Deirdre A Nelson, Susan T Sharfstein, Melinda Larsen, Yubing Xie

Faculty Research 2024

Mesenchymal stromal cells (MSCs) have displayed potential in regenerating organ function due to their anti-fibrotic, anti-inflammatory, and regenerative properties. However, there is a need for delivery systems to enhance MSC retention while maintaining their anti-fibrotic characteristics. This study investigates the feasibility of using alginate hydrogel microstrands as a cell delivery vehicle to maintain MSC viability and phenotype. To accommodate cell implantation needs, we invented a Syringe-in-Syringe approach to reproducibly fabricate microstrands in small numbers with a diameter of around 200 µm and a porous structure, which would allow for transporting nutrients to cells by diffusion. Using murine NIH 3T3 fibroblasts …

Mapping Out The Sky, Erik Johnson

Natural Science Faculty

Astronomers are often asked to help identify UFOs. It's a reasonable request since the term means "unidentified flying object." An untrained observer may not know which celestial objects are visible at night, even in light-polluted skies. They may mistake a plane for a planet, a bright star, or a satellite.

Using Ai Chatbots As Ideation Machines, Brett Hawley, Naomi Hollans

Student Works

The team analyzed 3 popular chatbots and found that none of them could consistently produce idea-centered essay help responses. The team approached them with 3 separate prompts, one from each of three academic subjects. The team analyzed how each chatbot adapted to the addition of personal information from the “student” and to the phrase, “what are some ideas that could help me get started?” The goal with each interaction was to receive a response in which the chatbot did not produce any pre-written content. Overall, the team’s research did not suggest that AI is fully reliable as an ideation tool.

Death, Sex, And Hope Through The Arts: Developing An Expressive Arts-Existential Therapy Method For The Treatment Of Compulsive Sexual Behavior Disorder, Michael Shirek

Expressive Therapies Capstone Theses

Compulsive sexual behavior disorder (CSBD) is a newly recognized disorder mired in a history of terminological and diagnostic controversy. Emerging research into the disorder has pointed to shame as an intrinsic motivator of the compulsive cycle, which provides potential for therapeutic intervention. Although most empirically-based treatments approach CSBD through a behavioral, abstinence-based model, an integrated expressive arts-existential therapy approach may provide opportunity for effective, person-centered treatment which mitigates the risk of reinforcing the shame cycle. For this capstone thesis, I developed and implemented a three-session treatment method which uses expressive arts therapy to investigate existential themes of guilt, non-being, isolation, …

Chitosan-Based Hydrogels In Drug Delivery, Salma A. Fereig, Mona Mohamed Ahmed Abdelmottaleb

Pharmacy

Hydrogels are three-dimensional cross-linked hydrophilic polymers that are able to absorb large quantities of water and swell. They have various properties like biocompatibility, low toxicity, and mostly biodegradability, which make them attractive for drug delivery applications. Chitosan hydrogels are especially attractive due to the inherent activities of the chitosan itself like the antibacterial, anti-inflammatory, and tissue regeneration enhancement capacity. Therefore, chitosan hydrogels have been proposed for the delivery of various drugs, genes, cytokines, and stem cells via various routes of administration for the treatment of various diseases as well as different forms of degeneration.

Urinalysis Test Data Analysis And Prediction, Nikhil Mhatre

2024 Datathon Challenges-Archive

OUTLIERS Team submission to the Urinalysis Test Results Timed Challenge

Researched various algorithms like boosting and random forest. We learned a lot about their strength and weaknesses, and used these algorithms accordingly to solve the issues faced in the dataset.

Giving Day 2024 Breaks Records At Ole Miss, Tina H. Hahn

University of Mississippi News

OXFORD, Miss – When the last online donation came in Wednesday (April 10) for Giving Day 2024, the University of Mississippi's donors had joined together to set an unprecedented fundraising record of more than $11.5 million.

Woosh Jín Toolshát Yeisú, WeʼRe Still Holding Each OtherʼS Hands : Relationships And Revitalization In Lingít Country, Éedaa Heather Burge

Faculty, Staff, and Students

This dissertation examines the relationships the Lingít language revitalization movement has to concepts of gender, identity, organizations and academia. The Lingít language and the Lingít people reside within Southeast Alaska in the United States, as well as northern British Columbia and the southern Yukon territory in Canada. Relying on my own lived experience as a Lingít learner and educator, as well as interviews and conversations with Lingít community members, we discuss how relationality supports the larger goal of Lingít language and cultural revitalization. Specifically we talk about the role of women within the language movement, and what approaches can best …

Compartmental Modeling For The Neophyte: An Application Of Berkeley-Madonna, Olcay Akman, Siddharth Bhumpelli, Cody Cline, Christopher Hay-Jahans

Faculty, Staff, and Students

Compartmental modeling serves as a necessary framework in many fields, especially biomathematics and ecology. This article introduces readers to a user-friendly approach to constructing compartmental models and solving the resulting systems of differential equations to simulate real-world applications. The platform used is Berkeley Madonna, a software package that has an intuitive graphical interface which empowers users—even those with limited mathematical and programming backgrounds—to focus on modeling concepts rather than mathematical or programming intricacies. This makes Berkeley Madonna an ideal platform for students, educators, and researchers.

Uni Introduction To High School Openscied Workshop [Flier] April 13, 2024, University Of Northern Iowa Science Education Program.

Science Education Update Conference Documents

The flier for the Introduction to High School OpenSciEd Workshop held on April 13, 2024 at the University of Northern Iowa.

Optimization Of An Innovative Hybrid Approach Zno-Doped Pvp Nanofibers For Electrical Devices Applications, Javeria Shah, Aryan Dilawar Khan, Mahidur R. Sarker, Aiyeshah Alhodaib, Ammar Khan, Mukhlisa Soliyeva, Vineet Tirth, Saima Naz Khan, Khizar Hayat, Amnah Mohammed, Moamen S. Refat, N.M.A. Hadia, Asad Ali, Abid Zaman

Artículos científicos

The solid solution of pure ZnO nanoparticles and doped Polyvinylepyrrolidone (PVP) green hybrid nanomaterial’s synthesized by using the electro spinning method. The synthetic polymer matrix nonwoven fibrous mats containing innovative properties are shown to shrink and encapsulated the zinc oxide materials to change the surface morphology when the concentration of PVP is increased from 1 % to 2 % dopants. The crystalline nature and morphological studies were examined by using x-ray diffraction and a scanning electron microscope. The average crystallite sizes of easily formed ZnO nanoparticles and nanorods that are 21 nm and 62 nm respectively. Moreover, the electrical and …

A Critical Review Of Sociological Research On Sexual Pleasure, Hannah Regan

Faculty Scholarship

Sociologists of sexuality often invoke the theme of pleasure, but it is not always clear what scholars believe the implications and importance of pleasure are. To this end, this paper reviews the existing literature on sexual pleasure, specifically within the field of sociology, to demonstrate what questions about sexual pleasure are (and are not) currently being asked. Through a systematic literature review, I demonstrate that scholars often lack a justification for why pleasure is important. I also connect themes between the kind of questions being asked about pleasure and the justifications attached to these studies, relating to risk mitigation, relationship …

American Museum Of Natural History Educator's Guide: Northwest Coast Hall, Judith Dax̱Ootsú Ramos, Laurel Xsim Smith Wilson

Faculty, Staff, and Students

Welcome to the Northwest Coast Hall. Reopened in 2022, it is the result of an intensive five-year collaboration between the Museum and ten advisors from the Indigenous cultural groups featured in the hall. This revitalized hall celebrates Indigenous worldview, artistry, cultural persistence, and the distinct practices and histories of the individual Nations along the Northwest Coast.

Socioeconomic Disparity Level And Telehealth Utilization Among Outpatient Healthcare Providers In California, Brittney Goodgame

Walden Dissertations and Doctoral Studies

The recent expansion of telehealth in the United States has created an opportunity for increased access to care for all patients, especially those with historically limited access. Grounded in Bronfenbrenner’s ecological systems theory, logistic regression analysis was used to determine if there is an association between community socioeconomic disparity level and telehealth utilization by healthcare providers. Secondary datasets were obtained through an independent insurance brokerage based in California. They contained claim level detail of patient visits conducted with outpatient healthcare providers in California. A random sample of 1,000 cases from the dataset were used for the completion of the study. …

Enhancing Team Performance In The Digital Age: Impact Of Technologically Moderated Communication In The Interplay Of E-Leadership & Trust, Sina Eslamdoust, Ji Hoon Lee, Tahmineh Bohrani

Business Analytics Faculty Publications

As the COVID-19 pandemic concluded, anticipating future health crises underscores the urgency of effective management and adaptable organizations. This paper draws from existing literature on e-leadership, virtual teams, and organizations, and conceptualizes a foundation to explore e-leadership challenges in virtual contexts. Emphasizing the pivotal role of e-leadership competencies in bridging technology-mediated interactions and effective leadership, the study addresses communication, trust, and coordination issues within virtual teams. It illuminates the impact of technology and assesses how diversity shapes the link between employee engagement and performance. The paper contributes to theoretical knowledge in the field, highlighting the importance of trust-building, relationship cultivation, …

Fear Of Love And Loving In India, Sarasu Esther Thomas

Popular Media

Excerpt:

It is unthinkable that marriages and live-in relationships between adults should become so regimented by the State. This is a violation of constitutional and human rights to have adult agency appropriated by the state and non-state actors. This insidious creeping of the paternalistic State into romantic and intimate relationships of consenting adults does not show any signs of ebbing. It reflects increased polarisation and merges moral policing with the law.

Driving In Cars With Noise: Reflections On An Audio Research Methodology, Randall W. Monty

Writing and Language Studies Faculty Publications

No abstract provided.

The Experience Of Well-Being In Educators Who Transitioned From In-Person To Online Teaching, La Toya S. Glenn

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic created substantive stress and uncertainty for secondary educators, including responding to the shifts in delivering education from the traditional to the online classroom and back to the classroom. Improper training, increased work demands, increased responsibilities, and decreased autonomy took a toll on teachers’ work and home life. To better understand how teachers deal with transitions in online, hybrid, and in-person education, this study explored secondary educators' experiences of psychological well-being during the transitions from in-person to online teaching. An interpretative phenomenological approach guided the research design. Lazarus and Folkman's transactional theory of stress and coping was used …

Substance Users’ Perspectives On Harm Reduction Strategies In Housing First Programs, Tammy Montague

Walden Dissertations and Doctoral Studies

The social problem of housing instability for individuals with substance use issues is well known. Researchers have found that 50% of homeless individuals have a substance use disorder with a reduction in life expectancy compared to the general population. With 1% of the U.S. population experiencing homelessness, Housing First with its core component of harm reduction has been embraced by U.S. policymakers as a strategic solution towards ending homelessness through low-barrier permanent supportive housing. This generic qualitative study explored the perspectives of individuals with substance use experience about harm reduction strategies accessed that helped them to overcome system related barriers. …

Perceptions Of Patient-Healthcare Provider Relationships In The Management Of Type 2 Diabetes, Desiree D. Lacey

Walden Dissertations and Doctoral Studies

The patient-healthcare provider relationship (PPR) is the foundation of clinical care: it is established as a human relationship and has a profound effect on health outcomes. Though PPR has been studied in multiple health domains, there is very little on its role in managing Type 2 diabetes mellitus (T2DM). The purpose of this phenomenological qualitative research study was to better understand the challenges faced by healthcare providers (HCP) and T2DM patients within the clinical PPR for diabetes selfmanagement. The health belief model served as the theoretical framework and the diabetes self-management education program as the conceptual framework. Participants were recruited …