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Central Halmahera In Power Relations, Development, And Environmental Crisis, Herman Usman Aug 2025

Central Halmahera In Power Relations, Development, And Environmental Crisis, Herman Usman

Masyarakat: Jurnal Sosiologi

Abstract This paper analyzes the relationship between power relations, development, and environmental crisis in Central Halmahera, North Maluku, a region that has undergone socio-ecological changes due to the expansion of extractive industries, especially nickel mining. Such development is controlled by state actors and corporations, creating unequal power relations in which local communities are often marginalized. This development model based on natural resource extraction resulting in ecosystem degradation, water pollution, and the loss of living space for indigenous peoples and coastal communities. This paper uses the approaches of political ecology and the sociology of development, to examine how the state facilitates …

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Greening The Virtual: An Interdisciplinary Narrative Review On The Environmental Sustainability Of The Metaverse, Mousa Al-Kfairy Aug 2025

Greening The Virtual: An Interdisciplinary Narrative Review On The Environmental Sustainability Of The Metaverse, Mousa Al-Kfairy

All Works

As the Metaverse continues to evolve as a transformative digital ecosystem, its environmental implications remain insufficiently examined within academic discourse. Despite growing interest in its technological and societal impacts, there is a lack of comprehensive evaluations that synthesize existing knowledge on its sustainability potential. This interdisciplinary narrative review addresses this gap by critically exploring how Metaverse technologies intersect with environmental sustainability across key sectors, including education, healthcare, tourism, e-commerce, manufacturing, and urban development. Employing a narrative review methodology informed by a systematic selection of scholarly and industry sources, the study consolidates current practices, emerging opportunities, and notable trade-offs. While the …

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Properties Of A Class Of Analytic Functions Associated With Exponentially Convex Functions, K. R. Karthikeyan, Elangho Umadevi, G. Thirupathi, Dharmaraj Mohankumar Aug 2025

Properties Of A Class Of Analytic Functions Associated With Exponentially Convex Functions, K. R. Karthikeyan, Elangho Umadevi, G. Thirupathi, Dharmaraj Mohankumar

All Works

Studies in univalent function theory comprising the exponential of differential characterizations are rarely considered. The prominent study in this direction is the study of so-called α-exponentially convex functions. Here we study a class of analytic functions which satisfy an analytic characterization influenced by the definition of the multiplicative derivative and α-exponentially convex functions. Integral representation and coefficient inequalities of the defined function class are the main results of the paper.

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Project Choices: An Experimental Serious Video Game For Performance-Based Risk Assessment, Rachel Bomysoad Aug 2025

Project Choices: An Experimental Serious Video Game For Performance-Based Risk Assessment, Rachel Bomysoad

Theses, Dissertations and Culminating Projects

Risk assessment for future criminal conduct currently relies on evaluator ratings or self-report measures, with imperfect predictive utility. A new serious (clinical) video game, Project Choices, was developed for assessment and treatment purposes with persons involved with the criminal legal system. Project Choices offers performance-based measurement of individuals’ responses to realistic scenarios relevant to overall criminogenic risk and individual risk factors. The current study aimed to pilot test the newest version of Project Choices (Version 2) using a sample of university students (N = 100), examining gameplay performance metrics (number of risky decisions overall and within individual risk domains) for …

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An Examination Of The Lived Experiences Of Community College Students Of Color Who Utilize On-Campus Food Pantries, Maria Luisa Marte Aug 2025

An Examination Of The Lived Experiences Of Community College Students Of Color Who Utilize On-Campus Food Pantries, Maria Luisa Marte

Theses, Dissertations and Culminating Projects

In this dissertation, I present the findings of a descriptive phenomenological study I conducted focused on examining the experiences of community college students of color who utilize on-campus food pantries, aiming to understand how these resources impact their well-being. Through in-depth interviews, two central themes emerged. The first theme, Introduction to the On-Campus Food Pantry, highlights the accessibility of the service, with participants emphasizing the simplicity and efficiency of the registration process as a key factor in their initial engagement. The second theme, Experiences Using the Pantry, reveals that students found the pantry environment to be welcoming and non-stigmatizing, fostering …

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Electrophysiological Markers Of Emotion Dysregulation In Autistic Youth, Rachel G. Mcdonald Aug 2025

Electrophysiological Markers Of Emotion Dysregulation In Autistic Youth, Rachel G. Mcdonald

Theses, Dissertations and Culminating Projects

Emotion dysregulation (ED) is a transdiagnostic mechanism that is conceptualized as difficultly regulating emotions and deploying appropriate regulation strategies in response to environmental stimuli. Meta-analyses suggest that autistic people, across the lifespan, experience more severe ED as compared to both neurotypical people and those with mental health conditions. Despite elevated risk and evidence linking ED to disruptions in neural mechanisms, no studies to date have examined neural markers of ED in autistic populations. The current project uses multi-method and multi-informant measurement to examine similarities and differences in neural mechanisms of ED in autistic and non-autistic populations. Forty-four youth aged 11—17 …

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Seeing Students For Part Of Who They Are: High School Counselors' Experiences Broaching, Jessica M. Miserentino Aug 2025

Seeing Students For Part Of Who They Are: High School Counselors' Experiences Broaching, Jessica M. Miserentino

Theses, Dissertations and Culminating Projects

Broaching is raising issues of race, ethnicity, and culture (REC) in the counseling setting. Day-Vines and colleagues (2007) introduced this skill that involves counselors bringing topics of identity into the counseling space intentionally. This phenomenological study, guided by intersectionality, aimed to explore the experiences of high school counselors broaching REC. This study provided a further understanding and definition of broaching. Five main themes emerged to describe their experiences: 1) What is Broaching? 2) Broaching Strategies, 3) Broaching with Students and Various Stakeholders, 4) Systems of Power Impact Broaching, and 5) Professional Trajectory, Training, and Counselor Identity Impact Broaching. The findings …

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Mind Mentor, The Workplace Mental Health Navigator: Evaluating The Utility Of A Self-Paced Web-Based Mental Health Awareness Training For Supervisors, Lauren Offermann Aug 2025

Mind Mentor, The Workplace Mental Health Navigator: Evaluating The Utility Of A Self-Paced Web-Based Mental Health Awareness Training For Supervisors, Lauren Offermann

Theses, Dissertations and Culminating Projects

The growing prevalence of mental health challenges in the workplace – such as anxiety and depression, burnout, suicide, and substance abuse – has increased demand for evidence-based supervisor training programs that promote psychological well-being. This study evaluated the effectiveness of Mind Mentor: The Workplace Mental Health Navigator, a 1.5-hour, web-based, self-paced adaptation of the Mental Health Awareness Training (MHAT; Dimoff, 2016) for supervisors. The training aimed to enhance mental health knowledge, awareness, self-efficacy, and supportive behaviors among U.S.-based supervisors with at least one direct report. Using a pre/post/follow-up design (baseline N = 51, immediate post-test N = 35, and 4-week …

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A Collaborative Teaching Approach: Teaching Emergent Bilinguals In Higher Education, Erika Oliveros Aug 2025

A Collaborative Teaching Approach: Teaching Emergent Bilinguals In Higher Education, Erika Oliveros

Theses, Dissertations and Culminating Projects

This dissertation examines the collaboration between two college instructors, one in writing and one in psychology, to enhance support for emergent bilinguals at a private university in the northeastern United States. While collaboration among educators is widely encouraged in K–12 settings, it is far less common and studied in higher education, particularly in relation to language-minoritized students. Through an action research model, this study examines how our informal exchanges evolved into a more intentional and reflective collaboration over time. Grounded in the frameworks of translanguaging (García, 2009) and community cultural wealth (Yosso, 2005), the study traces the evolution of our …

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"It's A Calling That Won't Let You Rest": The Experiences Of Counselor Educators Of Color Who Teach Social Justice, Sunanda M. Sharma Aug 2025

"It's A Calling That Won't Let You Rest": The Experiences Of Counselor Educators Of Color Who Teach Social Justice, Sunanda M. Sharma

Theses, Dissertations and Culminating Projects

Social justice advocacy has been described as a foundational ethical duty for all professional counselors (American Counseling Association, 2014). Counselor educators of color (CEOCs) have advocated for the advancement of multiculturalism and social justice in counseling (Sue et al., 1992; Vera & Speight, 2003). However, their lived experiences are not well-accounted for in the counseling literature. Grounded in critical race theory (CRT) (Delgado & Stefancic, 2017), this phenomenological study sought to explore the lived experiences of CEOCs who teach students to engage in systemic social justice advocacy (SSJA). Eleven participants described the essence of their experiences and four themes emerged …

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Not Just A White People's Book Club: The Participatory Action Research Of An Educator Collaborative, Jessica E. Smedley Aug 2025

Not Just A White People's Book Club: The Participatory Action Research Of An Educator Collaborative, Jessica E. Smedley

Theses, Dissertations and Culminating Projects

This participatory action research (PAR) study investigated the learning and action of a racial and social justice book club composed of educators within a public school district. Over several years, the group engaged in collaborative cycles of inquiry, reflection, and systemic action to deepen understanding of racism, power, and equity in education. Framed by Bronfenbrenner’s Ecological Systems Theory, Relational-Cultural Theory, and Transformative Learning Theory, this study explored how learning in community supported both personal and collective transformation. Findings highlight that the book club functioned as a relational and intellectual space where vulnerability, critical reflection, and mutual accountability fostered growth-fostering relationships …

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The Cost Of Strength: Navigating Systemic Racism And The Strong Black Woman Stereotype In The Workplace, Krystle M. Davis Aug 2025

The Cost Of Strength: Navigating Systemic Racism And The Strong Black Woman Stereotype In The Workplace, Krystle M. Davis

Theses, Dissertations and Culminating Projects

This research defined and explored the lived experiences of Black women in leadership and the role of systemic racism on the performance of the strong Black woman stereotype in the workplace. Grounded in Black feminist thought, epistemology, and phenomenology, this qualitative study seeks to deepen understanding the lived experiences of Black women. This manuscript-style dissertation comprises two studies: Study 1 consisted of nine participants who contributed through Sista Circle focus groups and Study 2 consisted of fourteen participants who engaged in semi-structured interviews to defined and examined their workplace experiences. Situated at the intersection of race and gender, this research …

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Ocean-Ice Sheet Interactions During Super-Interglacial Mis 31: Comparison Of Rock Magnetic Records From The Scotia Sea (59.1°S) And Fram Strait (76.5°N), Olga Libman-Roshal Aug 2025

Ocean-Ice Sheet Interactions During Super-Interglacial Mis 31: Comparison Of Rock Magnetic Records From The Scotia Sea (59.1°S) And Fram Strait (76.5°N), Olga Libman-Roshal

Theses, Dissertations and Culminating Projects

The mid-Pleistocene transition (MPT) was a period spanning ~1.2-0.7 Ma when glacial-interglacial cyclicity changed from 41 kyr obliquity paced to 100 kyr eccentricity paced cycles with increased glacial-interglacial contrast post-MPT. Marine Isotope Stage (MIS) 31 was a “super-interglacial” within the MPT and occurred in the recent geological past (1.08-1.06 Ma). During MIS 31, the tectonic configuration resembled the present day, but Earth’s orbital parameters were marked by maximum values of eccentricity and obliquity while atmospheric CO2 remained at pre-industrial levels (below 280 ppm). MIS 31 therefore offers a valuable baseline for testing the impacts of modern anthropogenic CO2 levels combined …

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The Effects Of Different Volume-Load On Sprint And Change Of Direction Performance, Damar K. Bobb Aug 2025

The Effects Of Different Volume-Load On Sprint And Change Of Direction Performance, Damar K. Bobb

Electronic Theses and Dissertations

This study was designed to compare the effects of two different strength training protocols on sprint and change of direction (COD) performance in recreationally trained athletes. Participants were evaluated on maximal dynamic (1RM squat) and isometric (IMTP) strength, speed (30m sprint), and COD (5-0-5 test). The participants were divided into two groups (Low volume-heavy load group [LV], High volume-moderate load high-intensity endurance (HIE) group [HV]) after initial testing, for a 4-week training intervention using traditional and weightlifting derivative lifts. The training consisted of 5 sessions per week (3 sessions resistance training [RT], each about 40-50 mins; 2 sessions sprint & …

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Exercising Sovereignty In The Theater Of Court: How Performative Punishments Has Substitute Law Implementation In The Islamic Republic Of Iran, Nina Maziar Aug 2025

Exercising Sovereignty In The Theater Of Court: How Performative Punishments Has Substitute Law Implementation In The Islamic Republic Of Iran, Nina Maziar

Graduate Theses and Dissertations

Abstract Legality is a modern infrastructure, but when it is combined with the jurisprudence, which is very interpretive and subjective, an amorphous content is merged, which can be shaped for utilitarian purposes; and this is how the arbitrary legal system of Islamic Republic is staged. This unshaped legal system, courts/trials and penal codes, especially political charges are ambiguous contents, baffling the mindsets. This unclear setting is deterministically vague to scare the victim, and the audience with the stagecraft of the court. Sovereignty is defined both in the international affairs regarding the capability of one state ruling a country, but it …

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Growth And Characterization Of Thin Film Gase On Si(111) And Sio2/Si(001) Substrates By Molecular Beam Epitaxy, Christopher John Hocevar Aug 2025

Growth And Characterization Of Thin Film Gase On Si(111) And Sio2/Si(001) Substrates By Molecular Beam Epitaxy, Christopher John Hocevar

Graduate Theses and Dissertations

Gallium selenide (GaSe) is a thin-film semiconducting material with promising optoelectronic properties, including a tunable bandgap, high photosensitivity, and atomic-layer scalability. These characteristics make it suitable for devices such as photodiodes, FETs, MOSFETs, Hall effect sensors, and p–n diodes. In this study, GaSe thin films were grown on SiO2 and Si(111)-7×7 substrates using molecular beam epitaxy (MBE) to compare growth behavior across different substrates. The films were characterized using Raman spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), photoluminescence (PL) spectroscopy, and reflection high-energy electron diffraction (RHEED). RHEED confirmed the 7×7 reconstruction of the Si(111) surface and the amorphous nature …

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Synthesis, Structural Characterization And Optical Studies Of Silver-Indium-(Zinc)-Chalcogenide Fluorescent Quantum Dots, Sujal Acharya Aug 2025

Synthesis, Structural Characterization And Optical Studies Of Silver-Indium-(Zinc)-Chalcogenide Fluorescent Quantum Dots, Sujal Acharya

Graduate Theses and Dissertations

Developing a non-toxic, high-performance fluorescent nanomaterial is crucial for overcoming the environmental and health restrictions of current cadmium, and lead based quantum dots (QDs), which limit the application of quantum dots in optoelectronics and bioimaging. In this thesis, we synthesized environmentally friendly AgInS2 QDs by a colloidal method, systematically altering the In/Ag precursor ratio from 2 to 6 to study the impact on their optical and photophysical properties. Our goals were to find the optimal stoichiometry for maximum quantum efficiency and stability. We also investigated further improving optical and photophysical properties through shelling with ZnS. The emission spectra appeared broad, …

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Structure, Thermodynamics, And Dynamics Of Acetonitrile In Titan-Like Conditions, Sagar Chandra Roy Aug 2025

Structure, Thermodynamics, And Dynamics Of Acetonitrile In Titan-Like Conditions, Sagar Chandra Roy

Graduate Theses and Dissertations

Titan is one of the most interesting satellites in the solar system. It is the only other place in the solar system containing stable deposits of liquid and a hydrological cycle other than earth. The abundant existence of N2 and CH4 in Titan’s atmosphere makes nitrile formation highly likely both in the atmosphere and surface. Infrared spectrometer data from Voyager 1 expedition revealed the presence of acetonitrile (CH3CN) in the atmosphere along with several other nitriles such as hydrogen cyanide (HCN) and cyanoacetylene (HC3N). According to theoretical models nitrile formation is caused by photodisscociation of nitrogen in the tholin haze …

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Polymer-Enhanced Nanopore Sensing, Eugene Gyasi Agyemang Aug 2025

Polymer-Enhanced Nanopore Sensing, Eugene Gyasi Agyemang

Graduate Theses and Dissertations

The resistive pulse technique characterizes single analytes by detecting fluctuations in the ion current as they pass through a narrow orifice connecting two electrolyte-filled chambers, each containing a single electrode. The amplitude, shape, frequency, and duration of these fluctuations primarily provide information about the analyte’s size, shape, concentration, and net surface charge, respectively. One configuration for resistive pulse measurements is of an electrolyte-filled nanopipette immersed in a bath, where the nanopipette tip acts as the nanoscale orifice. It was previously shown that incorporating the large quantities polymer polyethylene glycol (PEG 8K, 50% w/v) into the external electrolyte bath dramatically enhanced …

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Contrastive Loss In Recommendation Systems, Maryam Aghamohammadghasem Aug 2025

Contrastive Loss In Recommendation Systems, Maryam Aghamohammadghasem

Graduate Theses and Dissertations

A recommendation system is a bridge between users and products, which is widely used in e-commerce such as Amazon and Netflix. This study investigates the use of Graph Neural Networks (GNNs), Light Graph Convolution Network(LightGCN) and Graph Sample and Aggregate (GraphSAGE), in the recommendation system on two categories of Amazon review datasets ( "All Beauty" and "Tools and Home Improvement"). The novelty of this work includes combining supervised and self-supervised learning through Weighted Approximate Rank Pairwise (WARP) and Information Noise-Contrastive Estimation (InfoNCE) losses, to optimize the embeddings of users and recommended items in the shape of a ranking list. The …

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Predicting Case Clearance For Victims Of Anti-Transgender Homicide In The United States, Brittaney Alyssa Mann Aug 2025

Predicting Case Clearance For Victims Of Anti-Transgender Homicide In The United States, Brittaney Alyssa Mann

Graduate Theses and Dissertations

There is a shortage of research exploring case clearance of anti-transgender bias homicides. This study will comparatively examine the similarities and differences in anti-transgender bias homicide cases with and without arrests at the victim, situational and incident levels occurring in the United States between 2013 and 2023. Data are extracted from the Bias Homicide Database (BHDB), the National Coalition of Anti-Violence Programs (NCAVP), and the Human Rights Campaign (HRC). This project will address the gap in understanding case clearance of anti-transgender bias homicides, provide policy implications, and ideas to further the discipline’s understanding of the topic. Keywords: LGBTQIA+ victims, bias …

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Measuring The Impact Of Ged Preparation On Ged Testing Outcomes, Matthew Utz Aug 2025

Measuring The Impact Of Ged Preparation On Ged Testing Outcomes, Matthew Utz

Graduate Theses and Dissertations

This quantitative study investigates the relationship between participation in GED preparation programs and GED test outcomes among adult learners at a single Adult Basic Education (ABE) center located in an urban area of a south-central U.S. state. Recognizing the significance of the GED as an alternative credential to a traditional high school diploma, the research examines how instructional hours and structured preparation correlate with students’ final scores in mathematics, English language arts, social studies, and science. The study also describes the demographic characteristics of the learners, including gender, race, and age groups, and analyzes their performance on the Test of …

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Examining The Use Of Two-Dimensional Video Capture And A Pressure Sensing Walkway For Collection Of Obstacle Crossing Measures, Ashlyn M. Jendro Aug 2025

Examining The Use Of Two-Dimensional Video Capture And A Pressure Sensing Walkway For Collection Of Obstacle Crossing Measures, Ashlyn M. Jendro

Graduate Theses and Dissertations

Obstacle crossing research is crucial for providing insights into how and why people trip and fall. However, a growing body of literature has proposed that laboratory-based studies may not directly translate into real-world settings due to the complex nature beyond the sterile lab. Unfortunately, the absence of real-world obstacle crossing literature is likely due to a lack of available validated methods for collection of data outside the laboratory. This dissertation explored two potential methodologies (i.e., 2D motion capture and a pressure sensing walkway) that are more portable and cost-effective for collecting real-world obstacle crossing measures. It is hypothesized that 2D …

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Utilizing The Horseshoe Prior In Exploratory Factor Analysis And Gaussian Graphical Networks, James Thomas Roddy Aug 2025

Utilizing The Horseshoe Prior In Exploratory Factor Analysis And Gaussian Graphical Networks, James Thomas Roddy

Graduate Theses and Dissertations

High-dimensional data analysis frequently involves extracting meaningful structure from noisy, sparse signals. In recent years, Bayesian shrinkage priors—particularly global-local shrinkage priors—have emerged as powerful tools for inducing sparsity while preserving signal fidelity. Among these, the Horseshoe prior has gained notable attention for its capacity to simultaneously shrink irrelevant parameters and retain substantial signals. This dissertation explores the Horseshoe prior as a unified framework for sparse Bayesian inference across theory, simulation, and real-world application. The first component develops new theoretical results establishing the asymptotic Bayes optimality of the Horseshoe prior in Gaussian graphical models (GGMs). We consider sparse precision matrix estimation …

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Assessment Of Mental Health Needs For Chronically Unhoused Individuals Living In A Bridge Housing Community, Isabel Furse Augur Aug 2025

Assessment Of Mental Health Needs For Chronically Unhoused Individuals Living In A Bridge Housing Community, Isabel Furse Augur

Graduate Theses and Dissertations

Higher rates of psychopathology and substance use are reported in individuals experiencing homelessness compared to the general population, especially in those who are chronically unhoused. Chronically homeless individuals are also less likely to access treatment for these problems because of barriers to care. Addressing housing needs is an important first step in engaging people who are homeless with the care they need. This project focused on assessing the mental health needs of a Housing First community in Northwest Arkansas, which has few barriers for entry but does not provide direct support for mental health. This project adopted a community-based participatory …

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End Times: American Mortality, Death Materiality, And Social Death In The 1990s, Jordan A. Savage Aug 2025

End Times: American Mortality, Death Materiality, And Social Death In The 1990s, Jordan A. Savage

Graduate Theses and Dissertations

The United States in the 1990s was marked by pervasive representations of death in popular culture. As death imagery became increasingly visible in entertainment, there was a growing detachment from the embodied, biological realities of death, a tension intensified by the ongoing AIDS crisis. This project explores how death is politicized and how decisions about who lives and dies are shaped by power. I draw on a constellation of theoretical frameworks that collectively illuminate the operations of state-sanctioned death and social abandonment. These include Michel Foucault’s concept of biopolitics, which examines the management of life by state power; Giorgio Agamben’s …

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Freezing And Shipping Optimization To Increase Quality And Profitability Of Meat E-Commerce, Paul Olaoluwaniyi Dahunsi Aug 2025

Freezing And Shipping Optimization To Increase Quality And Profitability Of Meat E-Commerce, Paul Olaoluwaniyi Dahunsi

Graduate Theses and Dissertations

Freezing remains one of the most reliable methods for preserving meat quality and extending shelf life. However, quality deterioration can still occur due to structural and biochemical changes activated during freezing, thawing, and distribution. Since the COVID-19 pandemic, consumers’ preference for bulk purchasing and online meat shopping has increased, raising questions about the best strategies to balance both quality maintenance and profitability. This thesis aimed to evaluate two key stages where frozen beef is most vulnerable to quality degradation: consumer-level freezing and post-purchase shipping. The objectives were (1) to determine the effects of product size and subsequent consumer freezing practices …

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Classifying Advanced Persistent Threat Stages And Techniques Via Graph-Enhanced Network Flow Representations, Md Taef Uddin Nadim Aug 2025

Classifying Advanced Persistent Threat Stages And Techniques Via Graph-Enhanced Network Flow Representations, Md Taef Uddin Nadim

Graduate Theses and Dissertations

Advanced Persistent Threats (APTs) are complex, stealthy attacks that involve multiple stages and many attack techniques used in each stage, making them difficult to defend against. Although many solutions can detect APTs, most of them only detect the existence of attack, but cannot produce fine-grained classification over the stage of the APT and the specific attack technique used. Some existing solutions can classify the stages of APT, but few of them provide attack technique classification, and existing work do not provide interpretability for the classification or countermeasures for the attack. In this thesis work, we propose a solution named CAPTure, …

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Effects Of Multi-Sensory Training In Physical Activity On Reaction Time And Fitness In Elementary Students., Sarah Anne Trout Aug 2025

Effects Of Multi-Sensory Training In Physical Activity On Reaction Time And Fitness In Elementary Students., Sarah Anne Trout

Graduate Theses and Dissertations

Abstract This study examined the effects of multi-sensory Neuroplasticity training (MSNP™) using the ROXPro system on the psychomotor abilities of third-grade students in a Midwestern elementary school. The research aimed to determine whether the integration of interactive sensory-reactive technology in physical education could improve reaction time, agility, and explosive power compared to standard PE instruction. A total of 49 participants were assigned to either a control group or an intervention group, with the latter engaging in six weeks of ROX-based drills. A pretest-posttest design was employed, and data were analyzed using ANCOVA, repeated measures ANOVA, and independent t-tests to assess …

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Advancing Point-Of-Care Diagnosis Of Joint Infection Using A Diffuse Reflectance Spectroscopy (Drs) System, Erin Elizabeth Drewke Aug 2025

Advancing Point-Of-Care Diagnosis Of Joint Infection Using A Diffuse Reflectance Spectroscopy (Drs) System, Erin Elizabeth Drewke

Graduate Theses and Dissertations

Septic arthritis is a severe joint infection that can rapidly destroy cartilage and cause lifelong disability if not diagnosed and treated promptly. Faster, bedside diagnostic tools are needed to reduce delays and support timely treatment decisions while preserving standard laboratory workflows. A syringe-mounted diffuse reflectance spectroscopy (DRS) system was developed for rapid, sterile, point-of-care measurement of synovial fluid optical properties. Broadband light (400–650 nm) was delivered and collected through the syringe barrel without contaminating the sample. An empirical lookup table (LUT) and a boundary-aware Monte Carlo (MC) model were implemented to extract absorption (μₐ) and reduced scattering (μs′) coefficients from …

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