Digital Commons Network^™

(R2104) On The Qualitative Results Of Riemann-Liouville Fractional Order Nonlinear Neutral Singular Systems With Mixed Delays, Abdullah Yiğit, Cemil Tunç

Applications and Applied Mathematics: An International Journal (AAM)

In this manuscript, we discuss new conditions for asymptotic stability of nonlinear Riemann- Liouville fractional mixed-delay neutral singular systems. By constructing a set of improved Lyapunov-Krasovski˘ı functionals (LKFs), we establish some new delay-dependent conditions in terms of matrix inequality, which guarantees that the systems are asymptotically stable. In the particular case, we give four numerical examples with their solutions and graphs via MATLAB software demonstrating the practical applicability of these proven conditions. With this study, some conditions existing in the literature are developed and generalized.

(R2113) A Numerical Method For Solving Linear First-Order Volterra Integro-Differential Equations With Integral Boundary Condition, Zelal Temel, Musa Cakir

Applications and Applied Mathematics: An International Journal (AAM)

We investigate an efficient numerical method for the linear first-order Volterra integro-differential equations with integral boundary condition. To solve this problem, boundaries are determined for its derivative and the solution. The numerical solutions of the problem are modeled over a uniform mesh using the composite right-side rectangle concept for the integral component and the implicit difference rules for the differential component. Next, the stability and convergence of the numerical approach are discussed. The numerical experiments are presented confirming the accuracy of the proposed scheme.

Alfred Russel Wallace Notes 33. The Story In Evolution., Charles H. Smith

Faculty/Staff Personal Papers

Alfred Russel Wallace (1823-1913) is best known for his independent formulation of the principle of natural selection. In this work I first review my understanding of Wallace’s intellectual development on this subject, including the notion that he had no model for the evolution of higher consciousness as of his first treatment of natural selection in 1858. This leads to some conclusions about his approach to the subject, and links to parallel ideas inherent in the philosophy of Baruch de Spinoza (1632-1677).

Strategic (Non)Disclosure: Activation And Avoidance Of Social Ties Among Women Seeking Abortion, Kathleen Broussard

Faculty Publications

The increased politicization of sexual and reproductive health has created barriers to medically necessary care. In absence of formal health care, social ties become critical sources of information and resources, yet the disclosure of stigmatized health needs carries significant risk. How do people navigate the risks and benefits of disclosure when seeking care for stigmatized needs? Drawing on original survey data (N = 153) and in-depth interviews (N = 55) with women who attempted a self-managed abortion, I first describe the distinct roles of weak and strong ties in women’s health-seeking experiences. I then demonstrate how both partial disclosure and …

Glacial Erosion Rates From The Last Glacial Maximum To Present In Southern Patagonia (50°S), Anastasia Fedotova

Earth Sciences Theses and Dissertations

Over the past few decades, the notion of exogenic processes (e.g. weathering, erosion) contributing to mountain building rather than destruction has become increasingly supported through both direct observations and modeling. As a result, the details of the link between erosion, and therefore climate, and the tectonic evolution of mountain ranges, have progressively become established. One of the key observations emerging from the climate-tectonic debate has been the role of glaciers as powerful landscape sculptors, sensitive to climate signals. The reconstruction of glacial environments evolution and the recovery of patterns of glacial erosion over time have proven key to understanding feedbacks …

Environmental Impact Assessments (Eia): Analysis Of Transboundary Environmental Impact Assessments For The Development Of A Uniform Teia Model, Nicolas Chapa

Open Access Theses & Dissertations

This dissertation investigates the evolution, processes, and importance of Environmental Impact Assessments (EIAs), focusing on transboundary EIAs and the need for a uniform framework. Originating from the National Environmental Policy Act (NEPA) of 1969 in the U.S., EIAs have become globally adopted instruments for assessing and mitigating environmental impacts of development projects. This work reiterates historical milestones, strengths, and current limitations of EIAs. Research also included a review of environmental regulations from Mexico, such as the General Law on Ecological Equilibrium and Environmental Protection (LGEEPA). Through several case studies requiring the use of transboundary EIAs, where shared resources and concerns …

Heat Acclimated Algae Improves Heat Tolerance And Longevity In Daphnia, Ashit Dutta

Electronic Theses and Dissertations

Xenohormesis suggests that consuming stressed food provides physiological adaptation to the consumer for similar stresses. To evaluate this, Daphnia magna was provided with heat-stressed Nannochloropsis limnetica grown at 25℃ whereas the control group was provided Nannochloropsis limnetica grown at 12℃. In the heat tolerance experiment, Daphnia kept at 28℃ and 20℃ while consuming 25℃ algae had significantly higher heat tolerance compared to the control. Additionally, in stressed conditions, Daphnia consuming 25℃-grown food had significantly higher lifespan compared to the control. Next, Daphnia consuming 25℃-grown algae had significantly higher levels of antioxidants which could explain the lifespan extension. Finally, in fatty …

Psychological Distress Among Family Caregivers Of Persons With Alzheimer’S Disease And Related Dementias In Uganda, Martha Sajatovic

Faculty Scholarship

Background: Alzheimer's disease and related dementias (ADRD) present growing global health challenges, especially in aging populations, such as Uganda. In Uganda, familial caregiving, predominantly undertaken by female relatives, is the primary form of support provided to patients with ADRD. Cultural stigma around dementia and limited access to support services amplify caregivers' challenges. This study examined psychological distress, depression, and quality of life (QoL) among family caregivers of patients with ADRD in Wakiso District, Uganda. Methods: This cross-sectional study involved 90 caregivers from three sub-counties in Wakiso, selected through purposive sampling to capture diverse experiences. Participants included caregivers aged 18 years …

Annual Report, Fiscal Year 2023/2024, Tennessee. Department Of Safety & Homeland Security.

Annual Report

No abstract provided.

Obesity: Influencing Behavioral Consumption Through Meal Kit Distribution, Alejandro Hernandez

Capstone Projects and Master's Theses

Founded in 2002, Everyone’s Harvest is a grassroots nonprofit dedicated to providing access to healthy, affordable fruits and vegetables through certified farmers markets and community food programs. Its key initiatives—Fresh Rx, Market Match, Edible Education and Farms Together —focus on alleviating nutrition insecurity and combating diet-related health conditions by providing vulnerable populations the resources to purchase, or receive, fresh produce and gain nutritional knowledge. This study explores a new intervention: the distribution of farmers' market meal kits as a complementary strategy to the current Edible Education program. These meal kits, which feature seasonally available produce and pre-measured ingredients, aim to …

Opioid Knowledge And Experiences In Nebraska College Students, Natalie Holding

Theses/Capstones/Creative Projects

This study investigated opioid-related knowledge and experiences among 83 Nebraska college students, with an emphasis on awareness, perceived risks, and educational needs regarding opioids and the overdose-reversing drug, naloxone. For participants who have used opioids outside of a doctor’s orders, questions were asked regarding motivations, comorbidities, coping mechanisms, and treatment experiences. Data were collected via an anonymous survey featuring closed- and open-ended questions. Results showed that 41% of participants reported feeling moderately knowledgeable about opioid risks, while 34% felt only slightly knowledgeable. Although 80.7% of participants were aware of naloxone, most were uncertain either about (22.9%) or did not know …

Detecting N-Phenyl-2-Naphthylamine, L-Arabinose, D-Mannose, L-Phenylalanine, L-Methionine, And D-Trehalose Via Photocurrent Measurement, Feng Li, Ruoxi Yang, Jian Xu, Guohai Xu, Ye Wu

Faculty Publications

The concentration of small molecules reflects the normality of physiological processes in the human body, making the development of simple and efficient detection equipment essential. In this work, inspired by a facile strategy in point-of-care detection, two devices were fabricated to detect small molecules via photocurrent measurement. A linear response of the photocurrent against the concentration of the small molecules was found. In the first device, metal ions were introduced into gel substrates made by xanthan gum to enhance photocurrent response. N-phenyl-2-naphthylamine was measured when iron or manganese ions were used. L-Phenylalanine was measured when the gel was modified by …

Cmos-Based Rotational Spectroscopy: Massive Spectral Fingerprint Generation And Molecular Detection With Deep Learning, Yasamin Fozouni

Computer Science and Engineering Theses and Dissertations

Rotational Spectroscopy is a powerful spectral fingerprinting approach that can be used for identifying different gas molecules in a sample. Gas molecules are free to rotate, with inertia, in fixed states of quantized energy. In Rotational Spectroscopy, radiative beams are shown onto a sample to cause an energy-based transition between quantized rotational states. By sweeping the frequency of the radiative beams and monitoring the absorption with a sensor, one can profile the different rotational states, monitoring for energy based transitions. These transitions are dependent on unique properties of the molecules, thus presenting a unique molecular identification fingerprint (in the form …

Hitch Cart “Landing Gear”, Rebekah White, Jose Raygoza, Randy Hernandez, Brandon Leon

Mechanical Engineering

This report aims to allow our sponsor, to review our design process of the Hitch Cart Landing Gear Prototype. In the design overview section of this report, we discuss the primary design modifications we made to the wheel mechanism of the existing hitch cart prototype, including the addition of the ACME screws and the folding brackets. This allows our sponsor to see the intended improvements made to the past prototype and understand the primary goal of our project. Then, in the implementation section, we cover the entire manufacturing process to allow our sponsor to understand what manufacturing steps must be …

Pseudo Gps For Romi, Emmanuel Baez, Owen Guinane, Gabriel Coria, Conor Schott

Mechanical Engineering

The Pseudo-GPS system for Romi robots addresses the need for precise real-time location tracking in Cal Poly's Mechatronics lab. This project, developed by Emmanuel Baez, Gabriel Coria, Owen Guinane, and Conor Schott, under the guidance of instructor Charlie Refvem, provides a proof-of-concept system to enhance the Romi robots' geolocation capabilities for advanced robotic algorithms.

The proposed system uses a Raspberry Pi 4 equipped with a Pi camera module and ArUco markers to track the position and orientation of Romi robots within a lab environment. Custom 3D-printed stands secure markers on the robots, and a designated origin marker defines the coordinate …

Power At Sea Oscillating Water Column, Nate Hempstead, Max Wong, Ned Eyre Eyre, Luke Wierl

Mechanical Engineering

Current Autonomous Underwater Vehicles (AUVs) are predominantly powered by batteries or other energy sources that require frequent maintenance and human intervention. To increase the deployment times and efficiencies of AUVs, there is a need to develop improved wave energy conversion systems that harness renewable energy from waves and tides for power generation and storage. This approach aims to reduce or eliminate the need for manual maintenance or battery replacements, while also minimizing the environmental impact on marine wildlife and the surrounding ecosystem.

Expandable And Retractable Wheel Design, Ethan Fortenberry, Emily Cottrell, Keegan Martin, Benjamin Mcconnell

Mechanical Engineering

Our sponsor, Jeremy Goren, wants to see his patented expandable wheel design come to life. He requires a functional final product actuated by linear actuators and with a continuous, circular outer shell. The overall design can be broken up into 2 parts: the inner hub and outer shell. The wheel's shell will consist of a 12-piece outer shell that guides the 6 inner shell pieces. The outer shell pieces will be connected via a UBracket. The hub will consist of 3 identical parts that will hold 2 linear actuators each. The pieces will be bolted together to create 1 singular …

Piston Crown Design, Kurt L. Lippmann, Liam T. Janssen, Alex Rangel, Larry J. Davis

Mechanical Engineering

This project investigates the effects of dimpling a piston crown, and its impact on engine combustion dynamics. Through computational methods, the effects of piston crown dimpling on flow characteristics were evaluated. Theoretical results were verified with experimental methods. Experimental methods included characterization of exhaust gas content, engine horsepower and torque, and exhaust opacity.

Chronic Illness Education 2024: Addressing Anxiety And Depressive Disorders In The Adult Population, Alexandra Thompson, Andrew Wu, Lauren Kim, Meghana Jalagam, Rahul Bodapati, Tyler White

Patient Education Projects

No abstract provided.

One Is Not Enough: Session, The Social Status Provision, And Consistent And Definitive Constructions, Miles C. Skedsvold

Mercer Law Review

Originalism really is “a theory working itself pure.” But most of the blood, sweat, and tears in the enterprise are spilled over the federal constitution. At least partially as a result of those efforts, though, more and more important legal questions are examined under state law—and in particular, state constitutions. And so it is more important than ever to work through the hard methodological questions that will help produce answers. Presiding Justice Nels S.D. Peterson’s landmark article “Principles of Georgia Constitutional Interpretation” breaks key ground in this area—and this Article aims to take the shovel and keep digging. ...

Thus, …

Premises Liability And Third-Party Attacks: A Path Forward, Pamela A. Wilkins

Mercer Law Review

Recently, in Georgia CVS Pharmacy, LLC v. Carmichael, the Supreme Court of Georgia recognized a totality of circumstances approach for determining whether a landowner owes a duty to protect patrons from third-party attacks. So right now, in Georgia, the poor lighting, high-crime surroundings, and absence of functioning panic boxes are relevant considerations for the duty calculus.

Many members of the Georgia General Assembly find this outcome intolerable. Only months after the court’s ruling in Georgia CVS Pharmacy, several state senators, focusing on the supposed “unfriendliness to business” of the current totality of circumstances rule, introduced a bill that …

Insurance, Maren R. Cave, Jessica Phillips, Rebecca Strickland

Mercer Law Review

During this Survey period, the most important development was the Georgia General Assembly’s enactment of critical changes to the statute related to pre-suit demands in automobile cases. These changes to O.C.G.A. § 9-11-67.1 may very well mark the ultimate end of litigation in Georgia’s appellate courts related to what constitutes a binding settlement in automobile cases involving time limited demands. The Survey period also saw a number of decisions in the “first party” area where Georgia courts strictly upheld the insurance contract provisions related to suit limitations and reformation of those policies, and another decision related to “recoupment” of defense …

Torts, Scott Key

Mercer Law Review

2023—2024 brought significant changes to the law of torts in the Supreme Court of Georgia, the Court of Appeals of Georgia, and the Georgia General Assembly. The most significant changes involve precedent loosening the reasonable foreseeability standard in negligence cases and the end of direct actions against insurers in motor carrier cases. This was a busy year in tort law, with sweeping changes from the courts and the legislature.

Workers' Compensation, H. Michael Bagley, J. Benson Ward

Mercer Law Review

This Survey period (2023–2024) was relatively calmer than most years, with no significant legislation and fewer decisions from Georgia’s appellate courts addressing workers’ compensation law. Nonetheless, the courts still wrestled with factually intensive disputes on issues such as authorized treating physician releases to return to work and concurrent dissimilar employment, and with the frequent appellate issue of the exclusive remedy provision.

Composites Developed By The Reaction Of Elemental Sulfur With Biologically Derived Fats And Oils, Katelyn Tisdale

All Dissertations

Human civilization’s modern infrastructure relies mainly on cement and petrochemical products. However, the production of these building materials have harmful ecological effects such as green gas emissions, therefore intensifying the need to develop alternative, sustainable structural materials from renewably sourced or waste material precursors. The work presented herein investigates various biomass derived resources that serve as the olefin source for reaction with elemental sulfur, another abundant waste source, via inverse vulcanization to form high strength composites competitive with that of traditional building materials.

Chapter one reviews various techniques that have been developed and executed in an effort towards lignin valorization …

Evaluating The Duckweeds Lemna Minor And Spirodela Polyrhiza As Alternative Aquatic Hosts For The Spread Of The Bacterial Wilt Pathogen, Ralstonia Solanacearum, Irelynn Smith

Honors Theses

Ralstonia solanacearum is a plant pathogen that causes bacterial wilt disease in major crops such as tomatoes and potatoes. Recently, this bacterium was discovered in floating pennywort (Hydrocotyle ranunculoides) and Pennsylvania smartweed (Polygonum pennysylvanicum), two previously unsuspected aquatic plants. Duckweed is an aquatic plant with a high level of resilience and short doubling time. Common duckweed (Lemna minor) has previously demonstrated its capability as a versatile high-yield infection model for other types of pathogenic bacteria. Given this newfound branch of aquatic hosts and the fact that duckweed is a common pond weed previously identified in several ponds located nearby infected …

Barriers In Reporting Sexual Violence On College Campuses, Amber Hartman

Honors Theses

This thesis is designed to examine the underreporting of sexual violence on college campuses by exploring the systemic, cultural, and logistical barriers that hinder victims from disclosing their assault. Using both qualitative and quantitative methodologies, the research identifies three overarching influences for non-reporting. Fear, shame, and lack of resources are presented as the basis of the decision that victims make to not report. Meta-analysis of the research concludes that there is a profound impact of internalized victim-blaming narratives, fear of repercussions and institutional deficiencies in providing accessible support. Recommendations for solutions emphasize creating trauma-informed policies, improving communication and accessibility of …

Comparison Of Two Learning Methodologies: Virtual Reality And Osce Simulation, Connor Blackwell, Tabor Mcgee

Doctoral Projects

Anesthesia education has evolved immensely over the past twenty years, and with the new virtual reality (VR) simulations created by SIMVANA, the exponential growth can continue. The anesthesia program at The University of Southern Mississippi (USM) currently utilizes an educational platform known as the Objective Structured Clinical Examination (OSCE) for their students’ clinical curriculum. With the development of technology and education models, the purpose of the doctoral project is to determine if VR simulation can produce more effective learning than the OSCE modules. To determine the effectiveness, pharmacologic lessons for intraoperative hypotension were administered through both platforms and then tested …

Improving Consistency Of Quality-Of-Life-Assessments In Schizophrenia Patients Through Structured Education For Healthcare Providers, Dorothy Stewart

Doctoral Projects

Schizophrenia is a chronic and debilitating mental disorder that significantly impacts patients' quality of life (QoL). Effective management of schizophrenia requires not only symptom control but also a comprehensive assessment of QoL to guide treatment plans. The Schizophrenia Quality of Life Scale Revision 4 (SQLS-R4) is a specialized tool designed to evaluate the unique challenges faced by patients with schizophrenia. However, inconsistencies in the administration and interpretation of the SQLS-R4 by healthcare providers have led to variability in patient care. This doctoral project aimed to address this gap by implementing a structured educational intervention for healthcare providers that focused on …

Utilization Of Quantitative Monitoring To Promptly Detect And Reduce The Occurrence Of Residual Paralysis In The Post-Anesthesia Care Unit, Kathryn Elizabeth Nokes, Erin Moran Travis

Doctoral Projects

Objective: To evaluate the effectiveness of an educational workshop using an Objective Structured Clinical Examination (OSCE) on quantitative neuromuscular monitoring. The goal was to improve the knowledge and skills among certified registered nurse anesthetists (CRNAs) and student registered nurse anesthetists (SRNAs) in identifying residual paralysis. The specific aim was to determine the effectiveness of quantitative monitoring in the Post Anesthesia Care Unit (PACU).

Background: Residual paralysis following the administration of neuromuscular blocking drugs (NMBDs) is a significant postoperative complication. Neuromuscular blocking drugs (NMBD) facilitate airway management and manipulation of surgical fields. Quantitative monitoring can be crucial in early detection and …