Digital Commons Network^™

Evaluating The Rates Of Opioid Overdose By County In Middle Tn, Khanh Nguyen, Isha Kapoor, Sarah West

Science University Research Symposium (SURS)

Opioid misuse presents a well-documented and substantial threat to human health, with potentially life-threatening issues. Improved access to healthcare and increased social support are believed to contribute to better health outcomes for individuals in higher socioeconomic classes (McMaughan et al. , 2020). Conversely, individuals in lower socioeconomic classes may experience poorer health and engage in more hazardous occupations (Ravesteijn et al. , 2013). These disparities are thought to be linked to factors such as limited access to quality healthcare and greater exposure to non-prescription opioid drugs among those in lower socioeconomic classes. Data was obtained from mySidewalk. Specific variables of …

Fall 2023 Student Showcase For Research And Creative Inquiry Program, Office Of Student Research, Longwood University

Fall Showcase for Research and Creative Inquiry

No abstract provided.

The Effects Of Priming On Moral Judgement, Lilly E. Rogers, Anna Lee, Chris Toepher, Zali White

Science University Research Symposium (SURS)

Forming judgments and making decisions based on those judgments is an important and inescapable part of life. Moral decision-making often affects oneself and the people surrounding them. Previous literature has suggested that the act of making moral and ethical decisions can be separated and explained using various theoretical perspectives, two of the most prominent being utilitarianism and absolute deontology (Scott, 2012). Applying and categorizing decision-making into either of these categories has been shown and suggested to largely depend on the priming of a decision, with positive priming leading to more utilitarian decision-making (Broeders et al. 2011). It has further been …

Enhanced Photocatalytic And Antimicrobial Properties Of Undoped And Aluminum‑Doped Zinc Oxide Nanosheets Synthesized Via Novel Laser‑Assisted Chemical Bath Technique, Elbadawy A. Kamoun, Elbadawy A. Kamoun

Nanotechnology Research Centre

The urgency of antibiotic resistance has been recognized, necessitating prompt, and focused efforts from the scientific community. Innovative alternatives, such as nanoparticles and photocatalytic agents, have been investigated to confront drugresistant microbes. As an antimicrobial and photocatalytic agent, zinc oxide (ZnO) has demonstrated considerable promise. This study utilized a cutting-edge method called laser-assisted chemical bath synthesis (LACBS) to create undoped and Al-doped ZnO nanostructures without a catalyst. X-ray diffraction (XRD), scanning electron microscopy (SEM), UV–Vis spectrophotometry, and Fourier-transform infrared spectra (FTIR) were used to verify the structural and optical properties of the prepared nanostructures. The influence of doping concentration was …

“This Is A Book About Relations”: Pollution Is Colonialism By Max Liboiron, Thomas Letcher-Nicholls

The Goose

Book Review of Pollution is Colonialism (2021) by Max Liboiron.

The Difference In Physical Health Between High-Income And Low-Income Populations In Tennessee, Ailise Newton, Max C. Blessinger, Perrin Perdue

Science University Research Symposium (SURS)

Good overall physical health can be a protective factor against cognitive decline in aging. A good diet, routine exercise, and mindfulness to personal mental health are three main aspects that help determine one’s overall well-being. Socioeconomic status may play a factor in the ability to have access to resources for all three aspects of overall health previously stated. This data is important because it may impact how future researchers go about finding ways to help underprivileged communities. This study aimed to report significant factors that contribute to physical health in relation to cognitive aging from studying six different counties throughout …

Focus On Me, Sarah Nelson, Ainsley Ambrose, Hannah Pots, Chakuen Rambang

Science University Research Symposium (SURS)

In the modern world, distractions are all around us. Screens and notifications are a constant presence, competing for attention. Companies have taken advantage of people’s addiction to devices by creating advertisements designed to distract from the task at hand. Whether scrolling through social media, watching television, searching the internet, or reading online articles, there are a slew of advertisements. Previous research demonstrates that advertisements have the ability to divert one’s attention, and this process can be affected by many factors, like placement, relatability, and difficulty of task. Switching attention between stimuli can impact other mental processes, but the extent of …

Synthesis Of A Diazonium Perfluorocyclobutane Monomer Using Improved Chlorosulfonation Method For Proton Exchange Membrane Fuel Cells, Benjamin Varney, Emma Summers, Hua Mei

Science University Research Symposium (SURS)

The object of this research is the synthesis of a diazonium perfluorocyclobutane (PFCB) monomer, with the ultimate goal for a diazonium PFCB polymer. The polymer is designed as an alternative electrolyte for Nafion® polymer, a commonly employed material in proton exchange membrane (PEM) fuel cells. Currently, we are trying to improve the chlorosulfonation of 4,4'-di(2-bromoterafluoroethoxy)biphenyl by using Thionyl chloride with chlorosulfonic acid. The progress of the reaction and the purity of the final product are monitored through diverse characterization techniques, including thin layer chromatography (TLC), proton/fluorine nuclear magnetic resonance (NMR), and infrared spectroscopy (IR).

Carbon Dot Nanoparticle Synthesis And Gemcitabine Attachment For Cancer Theranostics, Webster G. Andrews, Chaze Espeleta, Hua Mei

Science University Research Symposium (SURS)

The purpose of this research was to synthesize bi-functionalized nanoparticles (NPs) based on carbon dots (CDs), that can perform cancer theranostics in hopes to increase efficacy for both the diagnostics and therapeutics for cancer. In this study, CDs were synthesized using a microwave method. Samples were produced using different time and temperature settings to determine the process yielding the best results. After the initial and final screenings, 16 minutes at 180°C and 650 watts produced the highest yield of CDs with the greatest capacity for bonding to the cancer drug and targeting agent. Through a series of chemical reactions, folic …

Taking Songs To Heart: An Investigation Into Musical Appreciation, Anna Kate Lockhart, Eric A. Febles, Valeria Draine, Kaitlin Pendasulo

Science University Research Symposium (SURS)

Abstract

Music cross-culturally occupies a central part of day-to-day living (Trehub et al., 2015). Research has demonstrated music’s consistent ability to modulate emotional states, through the investigation of properties like tempo and key (Res, 2011; Bella, 2001; Jongwan,, 2018; Schellenberg, 2010). Heartbeat is a steady rhythm that each human alive and well experiences daily, and heart rate, specifically the resting heart rate, has been suggested to set a baseline rhythm that may influence perception of musical valence (Koelsch & Jancke, 2015). The current study aims to investigate this hypothesis by establishing a resting heart rate level and modulating the speed …

Living Alone: Cognitive Aging In Tennessee, Monica Bennett, Gavin Mitchell, Angel Carroll, Sydney Willis

Science University Research Symposium (SURS)

Living alone in old age is increasingly common. In the United States, the percentage of older adults living alone has more than quadrupled since the 1900s. “In 2014, 26% of older adults lived alone, representing 12.5 million people” (Portacolone et al., 2018). Those who live alone experience different aspects of aging, whether that be socially, cognitively, or physically. The data we used was gathered by mySidewalk, which offered over 600 points of data, aggregated at the zip code level, from across the entire state of Tennessee. The variables we examined more closely included "Seniors in Family Households of 2 or …

Towards Designing A Knowledge Sharing System For Higher Learning Institutions In The Uae Based On The Social Feature Framework, S. M. F. D. Syed Mustapha, Edmund Evangelista, Farhi Marir

All Works

Numerous ICT instruments, such as communication tools, social media platforms, and collaborative software, bolster and facilitate knowledge sharing activities. Determining the vital success factors for knowledge sharing within its unique context is argued to be essential before implementing it. Therefore, it is imperative to define domain-specific critical success factors when envisioning the design of a knowledge sharing system. This research paper introduces the blueprint for an Academic Knowledge Sharing System (AKSS), rooted in an essential success framework tailored to knowledge sharing to deploy within an academic institution. In this regard, an extensive exploration of the relevant literature led to the …

The Transition To A Renewable Energy Electric Grid In The Caribbean Island Nation Of Antigua And Barbuda, Patrick Hoody

Honors Theses

The present study outlines the development and implementation of a computer model for Antigua and Barbuda's national electricity system, a dual-island nation in the Caribbean. The primary objective of this research is to investigate the cost-effective integration of renewable energy sources, including solar photovoltaics (PV), wind, and in the most novel contribution to the study, concentrating solar power (CSP). In addition to these technologies, the study explores the potential of battery and hydrogen energy storage to facilitate the transition towards 100% renewable electricity generation and the reduction of carbon emissions. This thesis is not solely a theoretical endeavor; it also …

Evaluating 3 Decades Of Precipitation In The Upper Colorado River Basin From A High-Resolution Regional Climate Model, William Rudisill, Alejandro Flores, Rosemary Carroll

Geosciences Faculty Publications and Presentations

Convection-permitting regional climate models (RCMs) have recently become tractable for applications at multi-decadal timescales. These types of models have tremendous utility for water resource studies, but better characterization of precipitation biases is needed, particularly for water-resource-critical mountain regions, where precipitation is highly variable in space, observations are sparse, and the societal water need is great. This study examines 34 years (1987–2020) of RCM precipitation from the Weather Research and Forecasting model (WRF; v3.8.1), using the Climate Forecast System Reanalysis (CFS; CFSv2) initial and lateral boundary conditions and a 1 km × 1 km innermost grid spacing. The RCM is centered …

Chiral Fermion Anomaly As A Memory Effect, Adrián Del Río, Ivan Agullo

Faculty Publications

We study the nonconservation of the chiral charge of Dirac fields between past and future null infinity due to the Adler-Bell-Jackiw chiral anomaly. In previous investigations [A. del Rio, Phys. Rev. D 104, 065012 (2021)PRVDAQ2470-001010.1103/PhysRevD.104.065012], we found that this charge fails to be conserved if electromagnetic sources in the bulk emit circularly polarized radiation. In this article, we unravel yet another contribution coming from the nonzero, infrared "soft"charges of the external, electromagnetic field. This new contribution can be interpreted as another manifestation of the ordinary memory effect produced by transitions between different infrared sectors of Maxwell theory, but now on …

Development Of A Two-Dimensional Coupled Smoothed Particle Hydrodynamics Model And Its Application To Nonlinear Wave Simulations, Guixun Zhu, Jason Hughes, Siming Zheng, Deborah Greaves

School of Engineering, Computing and Mathematics

This paper presents a two dimensional two-way coupled model combining Smoothed Particle Hydrodynamics (SPH) based on the Navier–Stokes equations (NSE) and OceanWave3D based on the fully nonlinear potential flow theory (FNPT) in order to efficiently simulate non-linear waves and wave–structure interaction problems. The two models are strongly coupled in space and time domains using a fixed overlapping zone, wherein the information from both solvers is exchanged by relaxation functions. In the SPH model, an open relaxation boundary, which is implemented as open and relaxation zones, is used in the coupling region. Horizontal velocity and free surface elevation in the open …

Microfluidic Isolation Of Tumor Cells Or Other Rare Cells From Whole Blood Or Other Liquids, Steven A. Soper, Michael C. Murphy, Juan Feng, Robin L. Mccarley, Andre A. Adams

College of Science Patents

No abstract provided.

Quantifying Co2 And Heat Fluxes At Roosevelt Hot Springs, Hydrothermal Area, Samantha R. Wolf

Earth and Planetary Sciences ETDs

Roosevelt Hot Springs is an actively producing hydrothermal system that has been extensively studied by field, geophysical and geochemical techniques since the 1970’s. Roosevelt Hot Springs sits at the western base of the Mineral Mountains in Utah, an area that has formed because of many volcanic, thermal and structural events since the late Oligocene. The work in this manuscript is the first of its kind to incorporate measurements of spring-based CO₂ fluxes with diffuse measurements to quantify the total CO₂ Flux in tons per day of a Basin and Range and Colorado Plateau Transition Zone-hosted hydrothermal system. Using …

Probability Distributions Arising In Connection With The Inspection Paradox For Bernoulli Trials., James E. Marengo, Anne Marino Himes, W. Cade Reinberger, David L. Farnsworth

Articles

In renewal theory, the Inspection Paradox refers to the fact that an interarrival period in a renewal process which contains a fixed inspection time tends to be longer than one for the corresponding uninspected process. We focus on the paradox for Bernoulli trials. Probability distributions and moments for the lengths of the interarrival periods are derived for the inspected process, and we compare them to those for the uninspected case.

Domain Specific Feature Representation Learning For Diverse Temporal Data, Farhan Asif Chowdhury

Computer Science ETDs

Humans can leverage domain context to recognize novel patterns and categories based on limited known examples. In contrast, computational learning methods are not adept at exploiting context and require sufficient labeled examples to achieve similar accuracy. Many temporal data domain, for example, seismic signals and oil mining sensor data, requires domain expert annotation, which is both costly and time-consuming. The dependency on training data limits the applicability of machine learning algorithms for domains with limited labeled data. This dissertation aims to address this gap by developing temporal mining algorithms that exploit domain context to learn discriminative feature representation from limited …

Assessing The Robustness Of Sound Horizon-Free Determinations Of The Hubble Constant, Tristan L. Smith, V. Poulin, T. Simon

Physics & Astronomy Faculty Works

The Hubble tension can be addressed by modifying the sound horizon (r_s) before recombination, triggering interest in early universe estimates of the Hubble constant, H₀, independent of r_s. Constraints on H₀ from an r_s-free analysis of the full shape BOSS galaxy power spectra within Λ CDM were recently reported and used to comment on the viability of physics beyond Λ CDM. Here we demonstrate that r_s-free analyses with current data depend on both the model and the priors placed on the cosmological parameters, such that Λ CDM analyses …

Dynamics Of Serum-Neutralizing Antibody Responses In Vaccinees Through Multiple Doses Of The Bnt162b2 Vaccine, Jared Sheehan, Caleb M. Ardizzone, Mayank Khanna, Amber J. Trauth, Michael E. Hagensee, Alistair J. Ramsay

School of Graduate Studies Faculty Publications

SARS-CoV-2 mRNA vaccines are administered as effective prophylactic measures for reducing virus transmission rates and disease severity. To enhance the durability of post-vaccination immunity and combat SARS-CoV-2 variants, boosters have been administered to two-dose vaccinees. However, long-term humoral responses following booster vaccination are not well characterized. A 16-member cohort of healthy SARS-CoV-2 naïve participants were enrolled in this study during a three-dose BNT162b2 vaccine series. Serum samples were collected from vaccinees over 420 days and screened for antigen (Ag)-specific antibody titers, IgG subclass distribution, and neutralizing antibody (nAb) responses. Vaccine boosting restored peak Ag-specific titers with sustained α-RBD IgG and …

Monitoring Brain Region-Specific Control Of Protein Turnover And Concentration Using Proteomics, Rebecca Suzanne Burlett

Theses and Dissertations

Regulation of metabolism is vital to health and lies at the core of many different diseases. The breakdown of metabolisms' regulation within the brain can lead to neurological disease like Alzheimer's Disease (AD). AD is known to affect brain regions responsible for memory and memory processing like the hippocampus and entorhinal cortex. The regulation of these regions' protein quality, synthesis, and degradation deviate from 'normal' or 'healthy' levels when AD is happening. It is known there is a breakdown of regulation in those regions; however, little is known about the specifics of regulation in healthy brains regions or how it …

University Philharmonic Orchestra & Cooke Scholarship String Quartets

Bailey School of Music Concert Programs

Program for the University Philharmonic Orchestra & Cooke Scholarship String Quartets performance on November 15, 2023.

Ensemble Concerts: Wind Symphony, November 15, 2023, Anthony C. Marinello Iii, Jeason Lopez, Anne Mcnamara, Omar Thomas

School of Music Programs

Center for the Performing Arts
November 15, 2023
Wednesday Evening
8:00 p.m.

Beyond Sustainability Curriculum Integration - Educating Otherwise, Paul Morgan

Sustainability Research & Practice Seminar Presentations

Professor Paul Morgan, Educational Foundations and Policy Studies - Beyond Sustainability Curriculum Integration - Educating Otherwise

Simulations Of Zero Boiloff, Densification, And Solidification In A Large-Scale Liquid Hydrogen Tank, Colin Philip Mahony

Electronic Theses and Dissertations Archive

The current research utilizes an Energy of Fluid (EOF) approach to develop a finite volume-based Computation Fluid Dynamic (CFD) model to create a benchmark simulation of the densification of liquid hydrogen (LH2) in an experimental Integrated Refrigeration and Storage (IRAS) tank at the Kennedy Space Center (KSC). The computational code will incorporate a commercial pressure-based model with User Defined Functions (UDF) to implement the EOF model. The enhanced model will solve the energy equation in terms of internal energy and provide temperature and pressure calculations for a given tank geometry. Specifically, a convection term will be added to an already …

Integrating A Virtual Science Outreach Into The Science Classroom Through Participatory Action Research, Shelby Anne Montague

Electronic Theses and Dissertations Archive

Calls for increased involvement in science outreach have come from scientists (Alberts, 2018; Friedman, 2008), from professional organizations (Jayaratne et al., 2003; Lee, 2018; Toolin, 2004) and from funding agencies (Broadening Participation, 2008; Catsambis, 1995) to increase students’ interest in science, technology, engineering, and mathematics (STEM) and STEM careers. One model of science outreach is the scientist in the classroom model, where a STEM professional visits a school classroom either in-person (Peker et al., 2012; Pratt and Yezierski, 2018) or virtually (Barry et al., 2022; McCombs et al., 2007). The St. Jude Virtual Journal Club is a scientist in the …

Detailed Characterization Of A Khz-Rate Laser-Driven Fusion At A Thin Liquid Sheet With A Neutron Detection Suite, Benjamin M. Knight, Connor M. Gautam, Colton R. Stoner, Bryan V. Egner, Joseph R. Smith, Christopher M. Orban, Juan J. Manfredi, Kyle Frische, Michael L. Dexter, Enam A. Chowdury, Anil K. Patnaik

Faculty Publications

We present detailed characterization of laser driven fusion and neutron production (∼10⁵/second) employing 8 mJ, 40fs laser pulses on a thin (< 1 µm) D₂O liquid sheet employing a measurement suite. At relativistic intensity (∼5×10¹⁸W/cm²) and high repetition-rate (1 kHz), the system produces consistent D-D fusion, allowing for consistent neutron generation. Evidence of D-D fusion neutron production is verified b y a measurement suite with three independent detection systems: an EJ-309 organic scintillator with pulse-shape discrimination, a ³He proportional counter, and a set of 36 bubble detectors. Time-of-flight analysis of the scintillator data shows …

Adoption Of Qr Code Technology Foreasyaccess To Library And Management Information Services: A Comprehensive Analysis, Dr. Surendra Sethy, Manish.Dadhich Dadhich

Library Philosophy and Practice (e-journal)

QR code technology can provide an easy and convenient way for users to access library and management information services. By using QR codes, libraries can improve the user experience, save time and effort for users, and gather feedback to improve their services.QR code technology can provide easy access to library and management information services in several ways. QR codes can be placed on library shelves, books, and other materials to allow users to quickly access information about the resource, such as its location, availability, and details about the content. This can help users save time and effort when looking for …