Digital Commons Network^™

Methane Consumption Rates By Coastal Virginia Beach Microbes, James R. Bailey Ii

Knowledge and Creativity Expo

This study measures whether microbial communities in the shallow coastal waters of Virginia Beach are capable of consuming methane in the water column. Using methane enrichment incubations and gas chromatography, we found no measurable methane oxidation of our samples over multi-day periods. These results suggest that these coastal waters may act as net sources of atmospheric methane.

Is The Chesapeake Bay Browning?, Samantha Williamson, Jessie Turner

Knowledge and Creativity Expo

Brownification is when water bodies turn brown over time. It occurs due to high amounts of color-dissolved organic matter (CDOM). CDOM is organic material, such as decaying leaves and organisms, that leaches into the water column like tea. It absorbs ultraviolet and blue light more than red light, causing the water to appear brown. After comparing surveys from 1987 and 2018, scientists discovered the Adirondack lakes underwent brownification as they recovered from acid rain. However, while increased CDOM can signify an ecosystem’s recovery, it can also hinder seagrass growth. Although scientists have studied this phenomenon in lakes, estuaries have not …

Using Spices To Mitigate The Detrimental Effects Of The Red Imported Fire Ant Solenopsis Invicta Buren (Formicidae) In Virginia, Karson Mchendry, Deborah Waller

Knowledge and Creativity Expo

The Red Imported Fire Ant, Solenopsis Invicta Buren, first arrived in southeastern Virginia in 1989 and rapidly spread throughout the area. These invasive ants displace native ant species and prey on vulnerable invertebrate and vertebrate species. Fire ant workers are very aggressive and readily bite and sting humans. Although the ant colonies can be eliminated with pesticide applications, chemical control can have detrimental effects on humans and on the environment. In the present study, we investigated various spices including cinnamon, nutmeg and turmeric as repellents to foraging workers. The use of spices to control ant activity promises to be an …

Trapping Ambrosia Beetles (Curculionidae) With Ethanol-Soaked Tree Bolts In Southeastern Virginia., Sajrim Chowdhury, Umme H. Akter, Deborah A. Waller

Knowledge and Creativity Expo

Native and invasive ambrosia beetles infest a wide variety of tree species in southeastern Virginia and cause significant damage. We investigated trapping ambrosia beetles by using ten different tree species as lures. One objective of the study was to determine the most effective lure for each species of ambrosia beetle related to tree species and the diameter of the bolt. Sections of tree limbs of two different diameters and 25cm in length were soaked in ethanol and hung from trees in several natural locations, both near water and away from water. Beetles attracted to the lures bored into the bolts …

Establishing Aquarium Systems And Care Protocols For Marine Invertebrates In The Department Of Biological Sciences At Odu, Magdalene R. Hamlin, Gloria Massamba N'Siala Ph.D.

Knowledge and Creativity Expo

Maintaining live animals in lab settings is useful for establishing a stock of specimens available for experimental studies without relying on continuous collection efforts. Previous aquarium systems utilized in the aquatic facility of the Department of Biological Sciences at ODU were suited for research on freshwater and marine vertebrates and were not designed for the care of marine invertebrates. This project aims to establish methods and protocols suitable for maintaining various marine invertebrates in a control laboratory setting. In the first stage of the project, the existing recirculation system and lab space will be reorganized and restructured to suit the …

Living Shorelines As A Solution To Saltwater Marsh Erosion, Elizjah Eddy, Richard Hale

Knowledge and Creativity Expo

In recent years, saltwater marshes fringing the Lafayette River, a tributary of the Elizabeth River, have experienced degradation in response to increased inundation and ocean energy . These marshes provide critical ecological and economic benefits to the City of Norfolk, and prioritizing their long term health and sustainability is an important challenge. An emerging restoration tactic involves enhancing marsh elevation through the application of dredge material that would otherwise require disposal offshore (known as thin-layer placement or TLP). An important first step in TLP projects is characterizing the textural and geochemical properties of the existing marsh sediment. The goal of …

The Influence Of Wind Speed On Phytoplankton Bloom Timing In Antarctica's 5 Regions, Majesti L. Cummings, Jessie S. Turners

Knowledge and Creativity Expo

Phytoplankton blooms form the foundation of the Antarctic marine food web and play a critical role in regional carbon cycling. Recent observations along the West Antarctic Peninsula indicate shifts in bloom phenology, the seasonal timing of biological events in nature, with accumulation seasons occurring later in recent decades. This study investigates how different variability in spring wind speed influences phytoplankton bloom start dates and peak dates across five ecological regions of the West Antarctic Peninsula.

Bloom timing is derived from 25 years of satellite-based chlorophyll-a observations, including annual start date and peak date. Wind speed data derived from atmospheric reanalysis …

Concomitant Subacromial Decompression Remains Commonly Performed During Rotator Cuff Repair: A Trinetx Study, Madison Baldauf, Zachary Krumm, Savannah Ward, Katherine Worcester, Kevin Bonner Md

Knowledge and Creativity Expo

Introduction:

Arthroscopic rotator cuff repair (RCR) is among the most frequently performed shoulder procedures in the US and is often accompanied by concomitant subacromial decompression (SAD). In recent years some studies have called into question the benefit of SAD in this setting. The topic is controversial as many surgeons still feel SAD is indicated. This study aims to characterize the changes in proportion of SAD performed concomitantly with RCR over recent years using TriNetX.

Methods:

The TriNetX database was queried for all patients undergoing arthroscopic rotator cuff repair from 2013 to 2025. Cohorts were established using the Current Procedural Terminology …

Complex Tandem Gait Performance In Collegiate Athletes With And Without A History Of Concussion, Irenia R. Torre

Knowledge and Creativity Expo

No abstract provided.

Sex Differences In Complex Tandem Gait Performance Among Division I Collegiate Athletes, Destiny Mcknight, Thomas Campbell

Knowledge and Creativity Expo

Background:
Sport-related concussions remain a significant concern in collegiate athletics, accounting for approximately 6% of sport-related injuries annually. Athletic trainers play a critical role in identifying concussion-related impairments, particularly deficits in balance and postural control. Dynamic balance impairments may persist beyond symptom resolution and negatively affect performance and functional mobility. The Complex Tandem Gait (CTG) test, a component of visio-vestibular assessment, evaluates postural control under varying sensory conditions and may detect lingering deficits associated with concussion history.

Objective:
To examine gender differences in baseline dynamic balance performance during complex tandem gait tasks among Division I athletes.

Methods:
A cross-sectional study …

Extracorporeal Membrane Oxygenation In Trauma Before And After Covid-19: Associations Of Utilization, Timing, And Outcomes, Ryan Mancoll, William Rice, Theodore Chin, Grayson Mast M.D, Samantha Olafson M.D.

Knowledge and Creativity Expo

Objectives:

The COVID-19 pandemic expanded and altered general ECMO utilization and provider experience; however, any impact on trauma-specific ECMO practice following this shift remains unclear. We hypothesize that trauma ECMO utilization patterns, timing of initiation, and outcomes have differed following COVID-19.

Methods:

We conducted a retrospective cohort study of trauma patients receiving ECMO (2017-2024) using the American College of Surgeons Trauma Quality Improvement Program (TQIP) Participant Use Files. The primary exposure was the COVID era (2017-2019 vs. 2021-2024). Primary outcomes included ECMO utilization, time to initiation, and in-hospital mortality; secondary outcomes included discharge disposition, major complications, and length of stay …

Influence Of Gender-Specific Data Imbalance On Scgpt Fine-Tuning For Single-Cell Genomics, Mohammad Aman Ullah Al Amin, Daniil Filienko, Hong Qin

Knowledge and Creativity Expo

The transformer-based foundation model scGPT has demonstrated strong capabilities in analyzing high-dimensional single-cell RNA sequencing data. However, the impact of demographic factors, particularly gender, on model performance remains insufficiently understood. Gender is known to influence cell-type compositions in the immune system. Here, using the gender-sensitive cell-type composition in immune system, we comprehensively evaluated how the gender-sensitive imbalance of training data influences the performance of scGPT in cell-type predictions. We fine-tuned scGPT on male-only, female-only, and mixed-gender subsets from two large-scale datasets containing immune cells. We used a logit difference to measure the confidence gap between the true label and the …

How Much Does Shape Matter: Investigating The Impact Of Marine Particle Morphological Features On In-Situ Settling Velocities Using Pca And Various Ml Models, Huanqing Huang, Alexander B. Bochdansky

Knowledge and Creativity Expo

Particle settling velocity serves as an essential component in ocean biological pump, as it determines particle retention time in the water column. Stokes’ law has been widely used to predict particle settling velocities by particle size and excess density in aquatic environments. However, an increasing number of studies suggest that Stokes’ law fits poorly in the size-velocity relationship of observations on small oceanic particles. Here, we present a series of novel approaches to investigate the relative contribution of settling velocities by the particle shape and optical densities using machine learning (ML) models and principal component analysis (PCA), based on 3906 …

Staged Versus Immediate Bilateral Deep Inferior Epigastric Perforator Flap Breast Reconstruction In A Community Hospital Setting: A Procedure And Patient‑Level Analysis Of Recovery Burden And Safety:, Ryan Mancoll, Adam Akari, Shreyas Bhalle, Lawrence Colen, John Mancoll

Knowledge and Creativity Expo

Introduction: Reconstruction using Deep Inferior Epigastric Perforator (DIEP) flaps is standard for muscle-sparing breast restoration following mastectomy. Staging the procedure in two is becoming increasingly common and an option for community surgeons to decrease operation-specific time burden. We hypothesize that in our community hospital-based cohort, staged reconstruction will be associated with lower recovery burden and decreased complication risk.
Methods: This study was a retrospective single-surgeon cohort of patients receiving staged, immediate or unilateral DIEP breast reconstruction (N = 276) from 2011-2021. Procedure-level multivariate regression evaluated surgical time, Length of stay, opioid use (MME), and perioperative change. Patient-level multivariate regression assessed …

Exploring The Relationship Between Behavioral Health Early Prediction Model And Patient Outcomes In The Emergency Department, Karen M. Richendollar, Kathie M. Zimbro

Knowledge and Creativity Expo

Problem: Emergency departments (EDs) are increasingly utilized for mental health (MH) care, often resulting in overcrowding and delayed access to specialized services. A significant proportion of MH patients are discharged without a psychiatric consult, raising concerns about safety and readmission rates. This trend places additional strain on already limited behavioral health resources and contributes to care delays for patients in acute crisis. Moreover, the lack of standardized discharge criteria for MH patients increases variability in care and may compromise patient outcomes. Purpose: This study evaluates the effectiveness of the Behavioral Health Early Discharge Prediction Model (BHEDPM) in identifying MH patients …

Acidosis During Dhca Is Associated With Neurologic Injury In A Canine Model, Rishab Agarwal

Knowledge and Creativity Expo

Introduction: Deep hypothermic circulatory arrest (DHCA) is utilized for neuroprotection during aortic surgery. The associations between the hemodynamic, metabolic and neurologic effects are not well characterized. We hypothesized that DHCA would be associated with hemodynamic and physiologic derangements which would correlate with neurological injury in a large animal model.

Methods: Twenty canines underwent 90 min DHCA at 18 °C with a randomized antegrade cerebral perfusion (ACP) flow rate (2.5, 5, or 10 cc/kg/min, n=6 for each) and were survived for 3 days. No ACP was implemented in controls (n=2).  Intraoperative assessments included hemodynamic (mean arterial pressure (MAP) and heart rate …

Rethinking Harmful Algal Blooms In Utah Waters: A Paradigm Shift In Water Quality And Management, Kabilan Mani

Spring Runoff Conference

Droughts are intensifying in frequency and severity, straining already limited water supplies.

Hydrodynamics Of Bear Lake: Waves, Currents, Circulation, And Residence Times, Jeffrey Nielson

Spring Runoff Conference

Until we understand water movement, we’ll struggle to explain or manage what happens in Bear Lake.

Water Needs And Recovery Pathways For The Great Salt Lake, David Tarboton, Sarah Null, Bethany Neilson

Spring Runoff Conference

Main Points 

• Levels of GSL inherently fluctuate because of variability in precipitation and temperature that drive inflow and evaporation 
• Reductions in inflows due to water use are superimposed on this variability 
• Consistent delivery of conserved water offers the opportunity to shift the range of lake levels upwards reducing the occurrence of serious adverse effects and increasing the potential for healthy lake levels 
• Adding 250 thousand-acre ft/year reduces the occurrence of serious adverse effects from 61% to 28% over the long term 
• Adding 800 thousand-acre ft/year shifts the mean of variable lake levels to the lower end of the healthy lake …

Molecular Xenomonitoring For Early Detection Of West Nile Virus Circulation In New Jersey: A Field Validation Study, Viet-Linh Nguyen, Pratap Kafle

Graduate Student and Postdoctoral Fellow Symposium

West Nile virus (WNV) remains a persistent public health concern in New Jersey, yet current pooled-mosquito PCR surveillance often detects viral activity only after significant amplification, narrowing the window for timely intervention. Molecular xenomonitoring (MX), which is the detection of viral RNA in mosquito excreta or saliva deposited on honey-baited FTA cards, offers a non-destructive alternative that preserves nucleic acids at room temperature, passively captures signals from hundreds of mosquitoes per card, and has the potential to detect WNV circulation earlier than conventional surveillance by continuously sampling mosquito activity without the need for lethal collection. This project aims to (1) …

Great Salt Lake Basin Integrated Plan, Laura Vernon

Spring Runoff Conference

What is the Great Salt Lake Basin Integrated Plan? A roadmap for managing water in ways that promote a healthy lake and a high quality of life in the basin.

Microplastics As Physical Hubs Amplifying Antiobiotic Resistance Under Mixed-Contaminant Selection In Wastewater Systems, Liyuan Hou

Spring Runoff Conference

Microplastics (MPs) are tiny plastic particles within the range of (0.1 mm to 5 mm) in size

Integrating Hydrology And Human Water Footprints: A Case Study Of The Great Salt Lake Watershed, Rocky Lynne Seeley

Spring Runoff Conference

A new model, comprehensively integrating hydrologic, water footprint, and virtual water data

Crowdfunding For Solid Organ Transplants In The United States: A Rising Trend., Annarose Taylor, Sai Kottapalli, Meghana Sunkara, Gabriella Adams, Rena Atayeva, Riccardo De Cataldo, Phavon Sage, Jashanna Walia, Jessica Bigner, Yifan Guo

Knowledge and Creativity Expo

Introduction

This study aims to characterize patients undergoing solid organ transplants (heart, lung, liver, and kidney) who utilize crowdfunding platforms, including GoFundMe, by examining their financial needs, goals, and the characteristics that make certain fundraisers more successful.

Methods

GoFundMe fundraisers were the respective terms “heart,” “lung,” “liver” and “kidney transplant.” Details were collected about fundraisers in America including monetary status, beneficiary demographics, and campaign characteristics. Single-variable analysis was used to assess factors contributing to extremely successful (≥70%), successful (≥50%), and unsuccessful fundraisers (≤25% of funding goal).

Results

1324 campaigns met inclusion criteria. The majority of beneficiaries described in fundraisers were …

A Conversation On Water, Camille Touton

Spring Runoff Conference

A conversation on water presentation at the 2026 Spring Runoff Conference.

What’S Next In Water Leasing Panel, Scott Hotaling, Adam Wickline, Hannah Freeze, Matt Anderson, Peter Stanton, Mitch Hancock

Spring Runoff Conference

Panel on water leasing at the 2026 Spring Runoff Conference.

Balancing Water Needs In Walker Basin, Peter Stanton

Spring Runoff Conference

Walker Lake 

Supported 50% of Mineral County economy 

Traditional homeland of Walker River Paiute Tribe (Agai Dicutta) 

World-class fishery

Annual Loon Festival

Protecting Older Adults In Hospice Care: Digital Risks And Vulnerabilities, Monalisa Gonzalez

Staying Safe, Smart, and Well Online: Empowering Older Adults in the Digital Age

No abstract provided.

Utah’S Water Network Panel, Brad Mortensen, Kelly Pehrson, Nate Daugs, Brad Parry, Lindsie Smith, Camille Touton, Megan Nelson

Spring Runoff Conference

A panel on Utah's water network at the 2026 Spring Runoff Conference.

2026 Northern Utah Water Champion Award, Spring Runoff Conference

Spring Runoff Conference

Recognizes individuals who have demonstrated sustained, meaningful contributions to the stewardship, management, governance, or understanding of water in Northern Utah.