Digital Commons Network^™

Connecting Bicyclists And Transit: A Multimodal Routing Tool With Bicycle Facilities Scoring, Raphael Y. Mrema

UNF Graduate Theses and Dissertations

This research develops a comprehensive, data-driven framework for assessing multimodal bicycle accessibility using open-source technologies and real-time routing data. Traditional active transportation studies often depend on proprietary GIS tools and static network datasets, which limit scalability, reproducibility, and integration with live mobility systems. In contrast, this study introduces a Python-based approach that leverages GeoPandas, the Google Maps Directions API, and General Transit Feed Specification (GTFS) data to dynamically evaluate infrastructure quality, operational stress, and multimodal connectivity. The framework was applied to Duval County, Florida, to examine how roadway design, facility type, and transit availability jointly influence bicycle network performance and …

Polynomial Invariants For Classical Invariant Groups, John Diller

UNF Graduate Theses and Dissertations

The classical invariant theory of matrix groups plays a fundamental role in modern algebra and geometry, with origins in Hilbert’s Fourteenth Problem concerning the finite generation of rings of invariants. In this thesis, we study polynomial functions on spaces of matrices and investigate their invariants under natural actions of classical groups. After recalling the geometric and algebraic motivations behind Hilbert’s question, we focus on invariants for several complex Lie groups, including the general linear group GL(V), the symplectic group Sp(V), the orthogonal group O(V), and the special orthogonal group SO(V). Building on foundational work of Hermann Weyl and a modern …

Faculty Involvement In Decision-Making Within Florida's State University System: Understanding Perception, Role, And Participation In Shared Governance, Elaine R. Mitchum

UNF Graduate Theses and Dissertations

Shared governance is the collaborative responsibility of faculty, administrators, and governing boards to guide institutional decision-making in colleges and universities. Faculty participation is essential in high-stakes decisions, as their disciplinary expertise and practical experience help ensure that policies align with academic values and long-term institutional goals. This qualitative case study examines faculty perceptions, roles, and participation in shared governance across the twelve institutions within the State University System (SUS) of Florida. Guided by four research questions, the study explored: (1) how faculty describe shared governance; (2) how perceptions of their role vary; (3) how recent events within the Florida SUS …

Annual Report, Fiscal Year 2025, Tennessee. Bureau Of Investigation

Annual Reports

This document is the annual report for the TBI during the fiscal year.

Introducing The Special Series “Sound History Is Cultural History”, Josh Shepperd, Amanda R. Keeler

College of Communication Faculty Research and Publications

This special series features the collaborative work of the Library of Congress Radio Preservation Task Force. The task force is a national clearinghouse project that brings together researchers from academic, archival, federal, and commercial sectors. Pieces in the series discuss RPTF participant commitments and strategies regarding the preservation and curation of the cultural history of sound. The first pieces in the series feature the research of three media historians, who discuss new directions for assessing radio as a cultural and political medium, in reference to the materiality of radio recordings as historical artifacts.

Millennial Pulses Of African Dust And Itcz Shifts In The Eastern Equatorial Pacific, Danielle E. Schimmenti, Franco Marcantonio, M. Roxana Sierra Hernández, Matthew W. Schmidt

OES Faculty Publications

We present high-resolution records of detrital Pb and Nd isotopes from marine core site MV1014-02-17JC (00° 10.8297’S, 85° 52.0042’W) in the Eastern Equatorial Pacific (EEP) and use a Bayesian isotope mixing model, MixSIAR, to quantify global dust source contributions since the onset of the last glaciation 30,000 yr ago. We find that in addition to South American dust from the Andean margin, North African dust from the Saharan desert makes up significant proportions of the EEP dust delivered to the site of study. The proportion of North African dust was significantly enhanced during the cold Northern Hemisphere stadials, Heinrich Stadial …

Impact Of Submarine Groundwater Discharge On Microbial Communities In A Highly Anthropized Coastal Lagoon (Mar Menor, Se Spain), Daniel Romano-Gude, Júlia Dordal-Soriano, Júlia Rodriguez-Puig, Andrea G. Bravo, Irene Alorda-Montiel, Aaron Alorda-Kleinglass, Marc Diego-Feliu, Cristina Romera-Castillo, Rebeca Mallenco-Fornies, Javier Gilabert, Jordi Garcia-Orellana, Valentí Rodellas, Clara Ruiz-González

OES Faculty Publications

Submarine groundwater discharge (SGD) supplies large quantities of nutrients and other terrestrial elements to coastal ecosystems, impacting marine biota and ecosystem functioning. Despite the relevance of prokaryotes for marine biogeochemistry, little is known about their responses to groundwater inputs. Here we explored the impact of SGD on the spatiotemporal patterns of prokaryotic communities from the Mar Menor (Murcia, Spain), a highly anthropized hypersaline coastal lagoon that receives large amounts of nutrient-polluted SGD. Using 16S rRNA amplicon sequencing, activity assays, and flow cytometry, we investigated the dynamics of prokaryotic communities across the lagoon and its connected environments (freshwater streams, groundwater, soils, …

Factors Associated With Health Decision-Making Autonomy On Own Healthcare Among Tanzanian Women: A 2022–2023 Demographic Health Survey Study, Tausi Seleman Haruna, Henry Ofori Duah, Rebecca Lee

College of Nursing Faculty Research and Publications

Background

Women’s health decision-making autonomy is fundamental for the health and well-being of women and their children. It empowers women to make health decisions and exercise their rights and choices surrounding their health. Like most parts of Africa, women’s autonomy in Tanzania remains contentious, with an estimated 19% prevalence of health decision-making autonomy in 2015. Given the impact of women’s health decision-making autonomy on women’s health outcomes and the fact that women’s health decision-making autonomy is an ongoing process affected by advancements in technology, economic growth, and social and cultural shifts, understanding the sociodemographic correlates of women’s autonomy is imperative. …

“Ringleader Who Has No Power”: A Qualitative Study Of Parent Uncertainty During A Nicu Admission Unrelated To Prematurity, Erin Rholl, Steven R. Leuthner, Kathryn J. Malin, Joanne Lagatta, Krisjon R. Olson

College of Nursing Faculty Research and Publications

Background

Parents of preterm infants experience stress related to uncertainty which impacts parent health outcomes. Less is known about the experience of parents whose infants are admitted for reasons other than prematurity. In this study we sought to describe (1) the experience of parents whose infants are admitted to a level IV NICU for reasons unrelated to prematurity in relation to uncertainty and (2) the effect of social and structural determinants on parent experience with uncertainty.

Methods

This single center qualitative study utilized interviews, questionnaires, and chart review at 2 time points: 2 weeks after admission and 3 months after …

The Economic Impact Of The 2024 Lpga Dow Championship, Grand Valley State University, Christian Glupker

Other Faculty Publications

The 2024 Dow Championship is estimated to have generated or supported economic benefits for the Great Lakes Bay region in the following ways:

• A total economic impact of $16.8 million in economic activity, supporting 128 jobs, and contributing $8.9 million to the regional GDP.
• The increase in economic activity generated $150,000 in tax revenue for local municipalities, $225,000 for special districts, and $142,000 for the Great Lakes Bay counties.
• The event attracted 30,061 spectators and required the assistance of 4,389 staff members and 1,050 volunteers.

The Economic Impact Of The Grand Rapids Area Nonprofit Arts And Culture Sector, Grand Valley State University, Christian Glupker, Paul Isely

Other Faculty Publications

The Grand Rapids area nonprofit arts and culture sector (GRACS) is estimated to have generated or supported economic benefits for the city of Grand Rapids and Kent County in the following ways:

• The total economic impact of this industry is estimated at $298.7 million in economic output, supporting 2,529 jobs. Approximately $195 million in economic output is new to the area.
• The total annual fiscal impact (tax revenue) of all primary visitor spending and GRACS organizational spending is estimated at $821,000 for municipalities and $585,000 for Kent County.
• GRACS events attracted 2.67 million visitors, with 48% visiting from outside the …

The Community College Library: A Historical Literature Review, Samantha Minnis

Books and Contributions to Books

Community college libraries are busy places, where no two days are the same. In the midst of the busyness of the day-to-day work, there is value in taking time to reflect. The act of writing this chapter is one way of taking time to reflect on the literature produced by community college library professionals over the last thirty years. It is the author’s hope that this review will produce a picture of some of the stories of community college libraries and how they strive to serve their students.

In examining the literature, several main themes arose to describe the conversations …

2024 Liaison And Instruction Impact Report, Emily Frigo, Maya Hobscheid, Jon Jeffryes, Delaney Jorgensen, Hazel Mcclure

Library Reports and Communication

This report provides an overview of the Libraries’ impact in teaching information literacy. Our Teaching and Learning Philosophy describes our student-focused approach and acknowledges “learning and teaching moments occur in a wide variety of contexts, including one-on-one reference consultations, while working on assignments, in the classroom, while considering personal and academic decisions.” Librarians partner with teaching faculty to design research assignments, collaborate on strategic scheduling of library instruction sessions, and cultivate collections to support student learning.

This report shows a snapshot of the work of our liaison and instruction librarians. Instructional approaches and liaison workloads continuously evolve and shift to …

Mill Power Consumption And Fuel Particle Size Distribution While Co-Milling Bituminous Coal With Steam-Exploded Woody Biomass In A Conventional Bowl Mill, Brian Schoof, Rajarshi Roy, Regan Kuttler, Parker Latour, Scott Montgomery, Jacob Tuttle, Gwendolyn Bennett Bennett, Brian D. Iverson, Andrew Fry

Faculty Publications

The mill behavior of a 312 Combustion Engineering Raymond Bowl Mill was studied with five blends of Utah bituminous coal and steam-exploded woody biomass, ranging from 100 % coal to 100 % biomass. Mill power consumption increased with biomass content, peaking at 187 % of the power required for 100 % coal before the mill faulted at 100 % biomass. After repositioning the rollers, power consumption for 100 % biomass decreased by 13 % compared to 100 % coal. SEM images revealed that milled biomass particles were non-spherical, indicating some fibrous structure remained post steam-explosion. The particle size distribution (PSD) …

Advances In Conductive Polymer-Based Flexible Electronics For Multifunctional Applications, Md Abdus Shahid, Md Mostafizur Rahman, Md Tanvir Hossain, Imam Hossain, Md Sohan Sheikh, Md Sunjidur Rahman, Nasir Uddin, Scott W. Donne, Md Ikram Ul Hoque

Michigan Tech Publications

The rapid developments in conductive polymers with flexible electronics over the past years have generated noteworthy attention among researchers and entrepreneurs. Conductive polymers have the distinctive capacity to conduct electricity while still maintaining the lightweight, flexible, and versatile characteristics of polymers. They are crucial for the creation of flexible electronics or gadgets that can stretch, bend, and adapt to different surfaces have sparked momentous interest in electronics, energy storage, sensors, smart textiles, and biomedical applications. This review article offers a comprehensive overview of recent advancements in conductive polymers over the last 15 years, including a bibliometric analysis. The properties of …

Understanding The Influence Of Image Enhancement On Underwater Object Detection: A Quantitative And Qualitative Study, Ashraf Saleem, Ali Awad, Sidike Paheding, Evan Lucas, Timothy C. Havens, Peter C. Esselman

Michigan Tech Publications

Underwater image enhancement is often perceived as a disadvantageous process to object detection. We propose a novel analysis of the interactions between enhancement and detection, elaborating on the potential of enhancement to improve detection. In particular, we evaluate object detection performance for each individual image rather than across the entire set to allow a direct performance comparison of each image before and after enhancement. This approach enables the generation of unique queries to identify the outperforming and underperforming enhanced images compared to the original images. To accomplish this, we first produce enhanced image sets of the original images using recent …

Fatigue Life Of Pre-Cut Seam Asphalt Mixture Composite Beams: A Combined Study Of Fatigue Damage Evolution And Reflective Cracking Extension, Hongfu Liu, Hong Lu, Xun Zhu, Zhengwei Yi, Xin Yu, Dongzhao Jin, Xinghai Peng, Songtao Lv

Michigan Tech Publications

This study investigated the impact of reflective cracking on the fatigue performance of asphalt pavements after milling and resurfacing under various conditions. Fatigue life was assessed through four-point flexural fatigue tests, while the crack extension pattern of composite beams was analyzed by digital image correlation (DIC) at both macroscopic and microscopic scales. Evaluation parameters such as stress ratios, immersion time, porosity, and types of viscous oils were assessed. A fatigue life prediction model of composite beams was established, accounting for the combined influence of these factors. To enhance the accuracy of determining composite beam failure, the critical fatigue damage was …

Long Oligos: Direct Chemical Synthesis Of Genes With Up To 1728 Nucleotides, Yipeng Yin, Reed Arneson, Yinan Yuan, Shiyue Fang

Michigan Tech Publications

The longest oligos that can be chemically synthesized are considered to be 200-mers. Here, we report direct synthesis of an 800-mer green fluorescent protein gene and a 1728-mer Φ29 DNA polymerase gene on an automated synthesizer. Key innovations that enabled this breakthrough include conducting the synthesis on a smooth surface rather than within the pores of traditional supports, and the use of the powerful catching-by-polymerization (CBP) method for isolating the full-length oligos from a complex mixture. Conducting synthesis on a smooth surface not only eliminated the steric hindrance that would otherwise prevent long oligo assembly, but also, surprisingly, drastically reduced …

Great Lakes Water Level Trends Using The Moving Statistics Method, With Implications For Climate Change And Cities, Brian Barkdoll, Opeyemi Alamutu

Michigan Tech Publications

Increasing magnitudes of precipitation and evaporation are predicted for future climate change. Knowing whether these trends are occurring can help water managers plan with respect to future erosion, flooding, and design changes for shoreline infrastructure. Data from all the Laurentian Great Lakes (Erie, Michigan-Huron, Ontario, St. Clair, and Superior) were analyzed here to determine whether these trends are being realized. The MovingStatistics Method is used here using the moving average and moving standard deviation. It was found that Lakes Erie and St. Clair had the highest moving average trend of 0.5 mm/month, while Lake Ontario had the highest moving standard …

Distributed Sapphire Fiber Bragg Grating-Based Thermal Profiling Of Submerged Entry Nozzles, Farhan Mumtaz, Hanok W. Tekle, Bohong Zhang, Xiaodong Li, Sunday Abraham, Bryant Mathis, Jeffrey D. Smith, Ronald J. O'Malley, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

This article focuses on the application of sapphire fiber Bragg gratings (FBGs) for instrumentation in submerged entry nozzles (SENs) within the steelmaking industry. The SEN is pivotal for transferring molten steel from a tundish to a mold, while preventing the infiltration of oxygen and nitrogen from the surrounding environment. Maintaining optimal flow conditions in the mold is crucial for ensuring casting process stability and maintaining high-quality steel. Sapphire FBG sensors have been instrumented in SENs to enable distributed thermal mapping for monitoring the health of the SEN. The optical sensor comprises three cascaded sapphire FBGs inscribed using femtosecond (FS) laser …

Balanced Benchmarking Of Zero-Shot And Rag Approaches For Biomedical Term Normalization, Thanh Son Do, Daniel B. Hier, Tayo Obafemi-Ajayi

Electrical and Computer Engineering Faculty Research & Creative Works

Normalization of medical concepts to an ontology is a key aspect of the natural language processing of biomedical text. It enables the mapping of medical expressions to standardized ontology terms and their identifiers, thereby enhancing the interoperability and computability of medical concepts. Although large language models (LLMs) can identify and standardize medical terms, they may struggle to accurately map ontology terms to their corresponding ontology identifiers. These challenges arise from the stochastic nature of LLMs, their limited exposure to uncommon ontology identifiers during training, and their lack of an integrated lookup mechanism. We generated test sets of synthetic terms to …

Measurement- And Simulated Annealing (Sa) Optimization-Based Inductor Model Coupled To Chassis, Junyong Park, Reza Vahdani, Donghyun Kim

Electrical and Computer Engineering Faculty Research & Creative Works

In automotive systems, a metal chassis protects the components against the external environment. However, the metal chassis is conductive, which results in unwanted conducted emission (CE) coupling to electric components. An inductor used for power factor correction (PFC) is one of the affected components. When the inductor is mated with the metal chassis, the impedance of the inductor changes. It is also hard to predict the CE coupling due to the structure-dependent characteristics. That is, the CE coupling is not negligible and hard to clarify. Therefore, this article proposes an efficient modeling method for the inductor which is mated with …

A High Step-Up Soft-Switched Converter Based On Coupled Inductor And Current-Fed Voltage Multiplier, Koosha Choobdari Omran, Reza Beiranvand, Pourya Shamsi

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a novel non-isolated DC-DC converter that combines coupled inductor (CI) and voltage multiplier (VM) techniques is proposed. The leakage energy of the CI is effectively recycled, and soft-switching conditions are achieved for all switches and diodes. Resonance between the leakage inductor of the CI and VM capacitors provides soft-switching conditions, without requiring a separate resonant tank. The use of VM stages not only lowers the voltage stress on semiconductor components but also allows for the use of low-voltage-rated devices, leading to reduced conduction losses, lower cost, and improved efficiency. High voltage gain can be achieved by appropriately …

Usb 3.0 Ibis-Ami Model Construction Using Measurement And Neural Network, Jiahuan Huang, Wenchang Huang, Muqi Ouyang, Hank Lin, Bin Chyi Tseng, Chulsoon Hwang

Electrical and Computer Engineering Faculty Research & Creative Works

The input/ output modes are essential for high-speed signal integrity analysis and channel simulation. This work aims to develop a method for generating an IBIS-AMI model for USB 3.0 using measurement data. Instead of requiring a specially designed motherboard with test points for specific measurements, this method uses measurement data obtained from an assembled motherboard. The only available data for measurement in this case is the output voltage waveform from the USB 3.0 port on the motherboard. To address this, a novel approach is proposed to extract all the required parameters for the IBIS-AMI model from a single available measurement …

Public Participation Geographic Information Systems (Ppgis) And Understanding User Conflict On The Rogue River, Kim Gaines-Munkvold

Masters in GIS Practicum Reports

This practicum explored the application of Public Participation Geographic Information Systems (PPGIS) to better understand user conflict on the Upper Rogue River, particularly tensions surrounding the use of jetboats. Partnered with Oregon’s Kitchen Table (OKT), who specialize in public engagement within the Hatfield School of Governance at Portland State University, the project supported Oregon state agencies’ effort to gather community input. The practicum consisted of two components - field work and Geographic Information Systems (GIS) analysis. Field work involved traveling to southern Oregon to work as a part of OKT public engagement team at community events and conversations, using a …

Comparison Of In Situ Plant Area Index And Remotely Sensed Leaf Area Index Of Northeastern American Deciduous, Mixed, And Coniferous Forests For Smapvex19-22, Christopher Cook, Laura Bourgeau-Chavez, Dorthea Vander Bilt, Mary E. Miller, Simon Kraatz, Michael H. Cosh, Victoria R. Kelly, Andreas Colliander

Michigan Tech Publications

Leaf Area Index (LAI) and Plant Area Index (PAI) are critical biophysical parameters for quantifying foliage density of crops and trees. As such they may also be effective metrics to estimate the impact of leafy vegetation on microwave signals, like the radiometer on board NASA’s Soil Moisture Active Passive (SMAP) satellite. This study presents a comprehensive analysis of PAI and LAI measurements acquired through in situ and remotely sensed (RS) methods in diverse forest ecosystems of northeastern America, including deciduous, mixed, and coniferous forests. We compare RS LAI and ground-truth PAI data to understand the variation between the RS LAI …

Effect Of Aging Duration On The Microstructure And Corrosion Characteristics Of 17-4 Ph Stainless Steel, G. Narasinga Rao, Subrat Kumar Baral, Y. Madhavi, Sriram Vijayan, Ravikumar Dumpala

Michigan Tech Publications

Heat treatment plays a critical role in inducing key microstructural changes necessary to enhance corrosion resistance of 17-4 PH stainless steel (SS). During the process, precipitates form within the metal matrix, contributing to the strength of the martensitic steel. Inconsistencies in the literature concerning the response of 17-4PH SS to heat treatment have been noted. Therefore, this study examines the impact of aging duration on microstructural characteristics, microhardness, and corrosion resistance of material. The solution heat-treatment process consisted of heating the material to 1040 °C for one hour and rapid cooling in water. Subsequently, aging treatment was carried out at …

A Transferable Approach For Quantifying Benthic Fish Sizes And Densities In Annotated Underwater Images, Peter C. Esselman, Shadi Moradi, Joseph K. Geisz, Christopher Roussi

Michigan Tech Publications

Benthic fishes are a common target of scientific monitoring but are difficult to quantify because of their close association to bottom habitats that are hard to access. Advances in image-acquisition technologies, machine vision and deep learning have made capturing and quantifying fishes with cameras increasingly feasible. We present a method and open-source software called ‘FishScale’ to estimate benthic fish lengths, numeric abundance and biomass density in underwater environments assessed with down-looking monocular images. ‘FishScale’ estimates fish abundances and size frequencies from near-nadir monocular images where fish have already been semantically segmented. The software accounts for lens distortion, underwater magnification effects …

Parent & Family Newsletter, August 2025, Illinois State University, Parent And Family Services

Parent & Family Newsletter

Parent and Family Newsletter

Parent & Family Newsletter, January 2025, Illinois State University, Parent And Family Services

Parent & Family Newsletter

Parent and Family Newsletter