Digital Commons Network^™

Leveraging Social Capital For Value Creation In Public Procurement: The Role Of Strategic Purchasing Integration, Iryna Malacina, Jad El Bizri, Frederik G. S. Vos, Elina Karttunen, Aki Jaaskelainen

Business Faculty Publications and Presentations

Purpose Although the integration of the purchasing function within strategic decision-making has been extensively studied in the context of the private sector, its significance for the effective functioning of public procurement (PP) remains underexplored. Effective PP is critical for suppliers, users of public services and society at large. This study investigates how the strategic integration of PP influences operational, environmental and innovative value creation by developing social capital in buyer–supplier relationships. Design/methodology/approach This study empirically examined how strategic purchasing integration contributes to the development of social capital in buyer–supplier relationships, which in turn affects value creation. It utilizes survey data …

Inelastic Behavior Of Three-Story Buildings With Concrete-Filled Composite Plate Shear Walls Subjected To Wind Loads, Joshua John Blom

Theses and Dissertations

Although elastic design of the main wind force resisting system in a building is the conventional approach it is not always desirable. In this study, nonlinear static and dynamic analyses are used to predict the inelastic behavior of a three-story building with concrete-filled composite plate shear walls subjected to wind loads. To explore the potential for inelastic design, two types of planar composite shear wall buildings are examined: individual shear walls designed using an elastic approach, and coupled shear wall pairs designed using an inelastic approach adopted from seismic design provisions. Nonlinear static "pushover" analyses are run using an assumed …

Experimental Testing Of Axially Loaded Fuse Plates Without Continuous Buckling Restraint, Rebekah Elizabeth Higgins

Theses and Dissertations

Current seismic design practice is to design structures to avoid collapse and protect life. Buildings are designed to resist seismic loading through strength and ductility. In moment frames, this ductility traditionally comes from inelastic deformation of beams. Moment frame connections move inelastic deformation away from the column and allow a plastic hinge to form in the beam. This plastic hinge prevents collapse but leaves the building difficult to repair. Some proprietary moment frame connections address this issue with replaceable fuse plate connections. These fuse plate connections move the plastic hinge out of the beam and into the replaceable fuse, allowing …

Using It And Accounting Education Pedagogy To Address Smaller Firms' Cybersecurity Concerns, Darlene A. Adkins, William Lyle, Walter Smith

The North American Accounting Studies

This study begins by exploring the cybersecurity activities and practices of small public accounting firms. It also examined how a cross-disciplinary curriculum design could be useful to accounting programs that are challenged to integrate cybersecurity-related content while preserving the core accounting knowledge valued by smaller accounting firms. Through interviews with current practitioners from small and regional firms, the research investigated the extent to which cybersecurity concerns impact their practice, how cybersecurity activities are staffed, and the perceptions of current practitioners on the state of accounting education related to information technology (IT) and cybersecurity. The participants expressed a desire for accounting …

Back To Normal? Perspectives Of Faculty And Teaching Librarians On Information Literacy Instruction After The Lockdowns, Catherine Baird, Cara Berg, Anthony C. Joachim, Drew Wallace

University Libraries Scholarship and Creative Works

Objective - While LIS scholars have extensively studied the widespread disruptions to library instruction during the lockdown period of the COVID-19 pandemic, there is a relative dearth of research concerning the longer-term implications for teaching information literacy (IL). This exploratory survey sought to examine how faculty have introduced IL skills to students before, during, and after the COVID-19 lockdowns. After returning to in-person operations in 2021, the authors observed a change in how faculty have engaged with libraries to teach IL to their students. Methods - Utilizing parallel survey instruments, we asked faculty and librarians for their perceptions of current …

Integrating Chatgpt In Teacher Education: Examining Early Childhood And Elementary Pre-Service Teachers’ Experiences In Ai-Assisted Math Lesson Planning, Hae Min Yu, Hyeseong Lee, Seung Kim

Education Department Faculty Articles

This study examines how pre-service teachers in early childhood education (ECE) and elementary education (ELE) integrate ChatGPT into mathematics lesson planning. Using a mixed-methods case study framed by the Technological Pedagogical Content Knowledge (TPACK) with Contextual Knowledge (XK) framework and AI literacy, we analyzed the experiences of 44 pre-service teachers (24 ECE, 20 ELE) in mathematics method courses at a university in the Midwestern United States. Data sources included pre- and post-assessments, documentation of ChatGPT interactions, lesson plans, and reflection papers. Findings reveal significant gains in participants’ knowledge of and confidence in using ChatGPT, with increased willingness to incorporate generative …

Pronatalism In The United States: How Political Ideals Surrounding Family And Reproductive Health Care Contribute To Neglect In The Foster Care System, Carson Sebree

Undergraduate Honors Theses

Within the past decade, conservative reproductive politics in the United States have experienced an ideological shift from pro-life toward pronatalism. This has been intensified through the rollback of reproductive rights and the rise of Christian nationalism. However, there has been no commensurate additional funding for the foster care system. This project asks the interrelated questions of: “how is pronatalism linked to neglect within the foster care system?; and, how do theories of democratic care highlight the necessity to rethink support for the foster care system and create policies that will address its shortcomings, given the rise of pronatalist aw and …

Smart Capsule Technology Could Make Treatments Easier, More Effective, Clara Turnage

University of Mississippi News

OXFORD, Miss. – University of Mississippi researchers have designed a 3D-printed capsule that can release medication at exactly the moment a patient needs it, improving care for those who suffer from chronic illnesses.

Fabrication Of Three-Dimensional Seaweed-Based Scaffolds And Evaluation Of Cell Attachment And Viability For Cultured Meat Applications, Srishti Tandon

Honors Scholar Theses

Global demand for animal protein is increasing rapidly, underscoring the need for sustainable meat production. Cultured meat is a promising alternative to traditional meat production techniques, but it requires optimization before it can be implemented on a large scale. Scaffolds are an important component for making cultured meat, as they provide structural support for cell attachment and mimic the texture of meat. Scaffolds need to be biocompatible, mechanically supportive, and biochemically active to promote proper cell adhesion, proliferation, and differentiation. This project investigated brown seaweed extract (SWE) hydrogels as a scaffold for cultivated meat applications and compared their mechanical and …

Fundamental Hydraulics Principles For Agricultural Systems Management And Technology, Robert M. Stwalley Iii, Roger Tormoehlen

Purdue University Press Books

Hydraulic systems have spread throughout modern technology, particularly in mobile equipment. The exercises presented in Fundamental Hydraulic Principles for Agricultural Systems Management and Technology are designed for the second-generation Parker Hydraulic Trainer to provide a basic understanding of hydraulic components and systems for technology and engineering students. Readers will learn how hydraulic pumps function, how linear actuators and their control circuits work, and how hydraulic motors operate and are controlled. Readers are also provided with the opportunity to attempt more advanced exercises. Aligned with beginning technology-based experiential hydraulics courses, this book emphasizes familiarity with common hydraulic components and circuit diagrams, …

Development And Validation Of A Pronation-Supination Testing Protocol For Rat Elbow Joint Function, Genevieve Jarrell

Mechanical Engineering and Materials Science Independent Study

Post-traumatic joint contracture (PTJC) of the elbow results in pain, stiffness, and loss of motion that can substantially impair daily function. While flexion-extension deficits in PTJC have been well characterized, the effects on pronation-supination remain poorly understood due to limited testing capability. The objective of this study was to develop and validate a method for quantifying rat elbow pronation-supination motion to better characterize elbow dysfunction. An existing load-controlled cyclic testing protocol was adapted using a rack-and-pinion system to convert linear displacement into forearm rotation, generating torque-displacement curves from which range of motion (ROM) and stiffness were evaluated. The protocol was …

Ankimedbench: Evaluating Hierarchical Medical Knowledge In Language Model Embeddings, Neel Patel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Despite achieving over 90% accuracy on medical benchmarks, recent studies show physicians cannot effectively leverage language models to improve clinical reasoning. Current benchmarks test isolated factual recall, but clinical practice requires hierarchical navigation through diagnostic categories—starting broad and narrowing systematically from chest pain to cardiovascular pathology to myocardial infarction to specific STEMI types. Existing evaluations cannot measure whether models preserve this taxonomic structure essential for clinical reasoning.

We introduce AnkiMedBench, built from 16,512 medical flashcards used by students preparing for licensing exams. Cards are organized across six hierarchy levels spanning 16 broad medical specialties to 672 specific diseases and conditions. …

Building Your Epic Life: Your Journey, Your Way, Your Masterpiece, Luciano Castillo

Purdue University Press Books

Building Your Epic Life empowers young people to understand that failure is an inevitable—and essential—part of the journey to success. The author shares his own challenges and struggles, showing that no path to success is linear and without setbacks. The book teaches the value of building a healthy body, mind, and spirit, and includes exercises that offer actionable plans for individuals to realize a meaningful, self-defined life based on their core values. A proven roadmap workbook and short lectures guide readers through a series of practical steps to discover their purpose, vision, and understand the value of mentorship—and why each …

Engaging Learners Everywhere: The Interactive Synchronous Hyflex Method, Nathan Mentzer, Abdul Moeed Asad, Adrie A. Koehler, Lakshmy Mohandas, Elnara Mammadova

Purdue University Press Books

Initially conceived as a workaround related to the crisis precipitated by the COVID-19 pandemic and the resulting lockdown of 2020, Interactive Synchronous HyFlex reimagines an active-learning, team-based classroom, making it possible for any student to participate fully, whether they are seated in the back row or joining from elsewhere in the world. Developed and refined by the authors through five years of classroom experimentation and National Science Foundation–funded research, this forward-facing approach—which refers to online synchronous hybrid delivery and combines the terms “hybrid” and “flexible”—brings together learners in a single classroom who have the daily option of meeting face-to-face or …

150 Years Of Purdue Engineering: Celebrating Our Consequential Impact On The World, Arvind Raman, Jim Small

Purdue University Press Books

Since its founding 150 years ago, Purdue University’s College of Engineering has profoundly shaped and improved the world, amassing breakthroughs spanning nearly all facets of society. Highlighting the indomitable spirit, ingenuity, and achievements of more than 100 Boilermaker alumni and faculty members, 150 Years of Purdue Engineering describes the program’s journey to become one of the most consequential engineering colleges in the United States. Richly illustrated with archival and contemporary images, this book includes stories that focus on Purdue innovators who have created everything from the barcode and the electronic TV receiver to the soft-serve ice cream machine and artificial …

Applied Research In Field Crop Pathology For Indiana, 2022, Darcy E. P. Telenko, Sujoung Shim

Purdue University Press Books

Applied Research in Field Crop Pathology for Indiana, 2022 serves as a summary of the applied field crop pathology research trials conducted in 2022 under the direction of the Purdue Field Crop Pathology program in the Department of Botany and Plant Pathology at Purdue University. In Indiana, there are more than 57,600 farms, 16,000 crop producers, and 900 certified crop advisers, Extension educators, and crop-protection industry representatives who manage more than 11.4 million crop-production acres with a total value of $6.3 billion annually. There are more than twenty diseases affecting corn, soybeans, and wheat that may decrease crop production and …

Soil And Water Education For Grades 3-12, Natalie J. Carroll, Christian Y. Oseto, Timothy J. Gibb

Purdue University Press Books

Soil and Water Education for Grades 3–12 was written for youth who enjoy learning about science and two critical natural resources: soil and water. Level 1 introduces basic terms and concepts, and is intended for youth in grades 3–5. Activities focus on understanding important soil and water processes. Designed for students in grades 6–8, Level 2 offers readers more concrete examples of advanced soil and water concepts. The exercises in Level 3, which is geared toward grades 9–12, are divided into sections based on how readers might use the information they have learned, placing them in the shoes of homeowners, …

Re: Approval Letter For The Revised Draft Final Annual Operations And Maintenance (O&M) Report: Butte Treatment Lagoon (Btl) System - 2023 (Dated October 29, 2025), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Stability Analysis Of Thermohaline Convection With A Time-Varying Shear Flow Using The Lyapunov Method, Kalin Kochnev

Honors Scholar Theses

This work applies the Lyapunov method to identify instabilities and compute the growth rate of a linear time-varying system. The linear system studied describes cold fresh water on top of hot salty water with a periodically time-varying background shear flow. A time-dependent weighting matrix is employed to construct a Lyapunov function candidate. The resulting linear matrix inequalities are discretized in time using the forward Euler method. As the number of temporal discretization points increases, the growth rate predicted by the Lyapunov method or Floquet theory, used for comparison, will converge to the same value obtained from numerical simulations. Furthermore, the …

The Impact Of Youth Sports Participation On Academic Performance And Sense Of Belongingness In Middle School Students, Kevin Stahl

Seton Hall University Dissertations and Theses (ETDs)

This quantitative study explored the relationship between youth sports participation, academic achievement, and sense of belonging among middle school students. Using data from the Middle Grades Longitudinal Study of 2017–2018 (MGLS; National Center for Education Statistics [NCES], 2018), the research examined whether involvement in youth sports predicts outcomes in mathematics, reading, and students’ perceived connection to their school environment.

The findings challenged the extent to which Astin’s (1984) theory of student involvement generalizes to early adolescent populations. Although the theory proposes participation in structured activities supports both academic and social outcomes, results indicated stronger and more consistent associations between sports …

Analysis Of Leakage In Nearshore Pipelines Using Fitness For Service Method To Ensure Mechanical Integrity Based On Api-579 Level 3, Elriandri Elriandri, Dedi Priadi

Journal of Materials Exploration and Findings

The Fitness for Service (FFS) analysis is performed as a quantitative assessment to evaluate the integrity condition of a pipeline. Essentially, FFS assessment helps determine whether equipment components can operate safely despite existing deficiencies. This evaluation is carried out using the Finite Element Method (FEM). In the case of an underwater pipeline that experiences leak due to anchor pull at the flange connection, it undergoes plastic deformation and is lifted approximately 1 meter. As a mitigation step, inspection and repairs have been carried out by the company. Subsequently, modeling is performed to reconstruct the deformation process of the pipeline. Then, …

An Analysis Of Student Performance In Elementary Linear Algebra At Brigham Young University, Adrienne Irene Christensen

Theses and Dissertations

This study investigates different factors that influence performance in the Elementary Linear Algebra (ELA) course taught at Brigham Young University. These factors include student characteristics such as true freshman status and college enrollment, and content-specific factors such as how performance on essential topics affects overall performance in the course. To analyze the various research questions posed in the study, I used robust linear mixed effects models with random effects controlling for the hierarchical structure of the data. The statistically significant results from these models indicate that (i) true freshmen perform better than other students on exams and in the ELA …

Studying Causal Inferences For Student Success In Higher Education, Prabesh Shrestha

Theses and Dissertations

Higher education institutions strive to support students in achieving their academic goals through targeted interventions and data-driven strategies. This study analyzed 19 variables, spanning student demographics, enrollment patterns, and institutional interventions, to identify predictors of students completing all enrolled courses in a semester. Using random forest, logistic regression, and bootstrap forest models, we assessed variable importance and derived causal estimates to determine their impact. Results from causal analysis indicate positive effects from session type, term load, referrals, kudos, flags, and scholarships, while negative impacts were associated with location, course delivery method, enrollment status, advisor contact, and registration interval. These findings …

Achieving More Accurate And Interpretable Fraud Detection With Double Machine Learning, Jeremy Andrew Berry

Theses and Dissertations

Fraud detection remains a critical challenge across industries such as insurance, healthcare, finance, and government. Global losses from fraud and financial crime are estimated in the trillions annually, including billions in healthcare and insurance fraud alone. While effective for prediction, traditional machine learning methods often lack causal interpretability and struggle to adapt to evolving fraud tactics. This dissertation investigates the application of Double Machine Learning (DML), an emerging causal inference technique, to enhance both the accuracy and interpretability of fraud analytics. The research compares DML against established causal inference approaches, leveraging a meta-learning framework to evaluate model performance on accuracy, …

The Lived Experiences Of African American Child Sexual Abuse Survivors And Their Relationships With The Perpetrators, Anita Joyner

Walden Dissertations and Doctoral Studies

Child sexual abuse (CSA) can be detrimental to survivors well into adulthood and can affect the relationships of everyone with whom they are involved. Knowing the perpetrator is a determining factor in the equation and is associated with increased odds of behavioral health challenges among survivors. This is especially true within African American communities, where cultural violence results in an increased level of trauma. The purpose of this qualitative study was to examine the lived experiences of African American CSA survivors and their relationships with the perpetrators. As part of the phenomenological design, data were collected through semi-structured interviews with …

Intouch Week Of December 15, 2025, New York Medical College

InTouch

• Record Numbers, Remarkable Research Define 30th Medical Student Research Forum
• Wellness Ambassador Program Welcomes New Student Leaders
• New Test Could Revolutionize Lyme Disease Diagnosis
• Meal Plan Launches Through Vemos Pay
• Off Campus, On Craft: Jeanne Chamas Keeps the Department on Track and the Community in Step

Measuring And Modeling Nonlinear Vibrations In Structures With Mechanical Joints, Suzanna Gilbert

Theses and Dissertations

Many assembled structures have bolted or riveted joints. Aside from providing a convenient method of assembly, mechanical joints have an important effect on the structure's dynamic response to its environment. Friction and microslip within the joints help to damp out unwanted vibration. However, the joints also introduce nonlinearity into the response. Most notably, the natural vibrational modes of the structure no longer have constant natural frequencies and damping ratios. Rather, they shift as a function of vibration amplitude. Several methods exist to characterize the dynamics of nonlinear systems, yet they are generally validated on simple benchmark structures, and many still …

Quantifying Biocrust Evaporation In Arid Lands By Combining Thermal Imaging And Lysimeter Measurements, Rebekah C. Magness

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biological soil crusts (biocrusts) are miniature ecosystems of living organisms incorporated within the soil matrix and established in the topmost millimeters of the soil surface. Biocrust plays a critical role in the hydrologic processes in arid lands, yet the extent to which it increases or decreases evaporation remains unclear. To gain a better understanding of the impact of biocrust on evaporation compared to bare soil, I studied a cyanobacteria-dominated biocrust patch surrounded by bare soil atop a lysimeter in the Mojave Desert near Las Vegas, Nevada. Using high-resolution thermal imaging, and the known latent heat flux from the lysimeter, I …

Automated Spectrum Analysis And Radionuclide Identification For Robot-Based Gamma Probes, Kennedy Ochieng Mengoh Alila

UNLV Theses, Dissertations, Professional Papers, and Capstones

Gamma spectroscopy is a technique used for the detection and identification of nuclear materials. Gamma-ray emission by radio nuclides is detected using scintillation detectors or semiconductor detectors such as NaI and CZT. Robot-based gamma probes enable radiation measurements in large areas and hard-to-reach cluttered hazardous environments, which significantly reduces radiation risks to personnel. The robotic probes require automated on-board gamma spectrum analysis and capabilities with platforms (unmanned aerial vehicles and unmanned ground vehicle systems) which use Robot Operating System (ROS). The aim of this thesis was to develop a method of an automated spectral analysis and isotope identification for robot-based …

Ultrafast Dynamics Of Two-Dimensional Electron Systems, Randy Michael Sterbentz

UNLV Theses, Dissertations, Professional Papers, and Capstones

On-chip terahertz time-domain spectroscopy (THz-TDS) is a technique useful for measuring the ultrafast electrodynamics of two-dimensional (2D) electronic systems. Charge carrier collisions occur on the sub-picosecond time scale, and strongly correlated electron interactions (such as superconductivity) typically have energies on the order of milli-electron-volts. These phenomena fall within the terahertz bandwidth, which has historically been difficult to access. Commercial electronics operate with transistors capable of switching rates of around 100 GHz, while small band gap semiconductors (like InGaAs) can detect light down to 0.75 eV (180 THz). When combined with the difficulty of measuring 2D layered materials, with lateral sizes …