4-VA

Mason Scientists Join Partners to Create Genetic Markers to Improve Breeding Practices for Endangered Species

 

Scientists have long recognized that both wild and captive populations of endangered species are at a high risk for loss of genetic diversity due to their rarity. With small or isolated populations, genetic diversity can be lost through stochastic genetic drift or breeding between close relatives. Therefore, proper management of captive populations is critical to ensure long-term sustainability. The struggle, however, is how to efficiently and economically collect and analyze high-resolution genetic data that can fill the knowledge information gaps in effective breeding practices.

Haw Chuan Lim, Associate Professor in George Mason’s College of Science, Department of Biology, saw an opportunity to combine the experience and knowledge of other experts in the field to develop a novel genomic tool to address this issue.

The researchers created and validated the application of a novel genetic probe-set. It was used to generate data from different types of genetic markers with complementary features such as ease of genotyping, presence throughout the genome, and high information content. The team reasoned that a study conducted on one animal could provide a platform for application to other endangered species.

The Eastern mountain bongo, a critically imperiled ungulate native to Kenya, was identified as a test species. Although fewer than 140 bongos remain In the wild, there are approximately 160 bongos in U.S. zoos and several hundred more on private ranches.  As such, breeding and transfer strategies that increase genetic diversity and reduce inbreeding of captive animals are critical for the survival of the species.

The 4-VA@Mason Advisory Board saw the value in Lim’s proposal, “Development of a novel genotyping panel for powerful and cost-effective evaluations of population structure and kinship in the critically endangered mountain bongo” and approved it for funding.

GMU researchers, Lim and his PhD student, Karen Holm, assembled their team — Aakrosh Ratan, Assistant Professor, University of Virginia; Klaus-Peter Koepfli, Senior Research Scientist, Smithsonian Mason School of Conservation; and Budhan Pukazhenthi, Research Physiologist, Smithsonian Conservation Biology Institute. 4VA funding was used to purchase the necessary supplies, reagents and equipment including DNA tests and probe sets.

Four types of samples—whole blood, fecal swabs, tissues, and extracted DNA—from 39 North American conservation centers and zoos were collected to begin the project. This resulted in a total of 207 samples from both current and historical ex situ populations (populations outside of the native ranges). They evaluated the effectiveness of the probe-set in generating high-quality genetic data from different sample types and for different genetic marker types. The data obtained are now being accessed for their ability to produce accurate information on animal kinship, genetic diversity and population structure, which will ultimately be used to guide precise captive breeding programs.

Some preliminary data, as well as a chromosome-level genome assembly, have already been published by the National Center for Biotechnology Information and at https://www.dnazoo.org/copy-of-assemblies/tragelaphus_eurycerus_isaaci.  A high-quality genome serves as an invaluable resource for species conservation because it can be used for many types of research such as those focused on detecting deleterious mutations. All results from this study will ultimately contribute to the Association of Zoos and Aquariums Species Survival Plan for the species.

Concludes Lim, “The 4-VA@Mason funding got us started, and now we have obtained external funding to move the research even further.”

 

 

Following a Slow Start, 4-VA@Mason Research on Species Resilience Produces Landmark Results

Associate Professor David Luther, who has spent the last 14 years in George Mason’s Biology Department studying ecology, evolution, and conservation, recognizes the importance of playing the long game in research and education.  Great outcomes don’t happen overnight.  But even Luther couldn’t have imagined the hurdles and roadblocks ahead of him following 4-VA@Mason’s approval of his 2019 Collaborative Research Grant proposal “Species richness resilience to habitat fragmentation and restoration in tropical rainforests.”

Luther’s vision was to document and measure differences, using audio and video devices, in the animal community composition and the rate of recovery of animals in secondary forest and forest fragments – areas where contiguous forested areas are broken into smaller forest patches, separated by barriers such as roads, agriculture, or utility corridors.  His plan was to install recording equipment at 50 sites as part of the Biological Dynamics of Forest Fragments Project (BDFFP) in the Amazon rainforest of Brazil. Luther paved the way for this project by connecting with the Brazilian National Institute of Amazonian Research (INPA), an Amazon research institution based in Manaus.

The proposed budget was entirely devoted to purchasing the wide array of materials necessary for the effort — cameras, acoustic recorders, batteries, and other supplies — along with the international travel needed to bring the project to fruition. Luther then assembled a team of faculty and student research volunteers at 4-VA partner schools and on the George Mason campus.

Just underway in 2019, all efforts came to a complete halt in March 2020 as Covid-19 struck worldwide.  Luther faced a myriad of challenges: the inability to travel to Brazil and enter the field site; students selected for the research had to pivot to new endeavors which would allow them to graduate while studying remotely; and partner schools needed to move on to other projects during what would be the two-year waiting period. What’s more, one of the key members of the planning team, George Mason’s Tom Lovejoy, passed away in December of 2021.  Lovejoy was recognized as one the world’s leading conservation biologists and often referred to as the “godfather of biodiversity.” In his passing, Luther lost a critical member of the team and a mentor.

However, Luther stayed the course, revamped his team, re-wrote the schedule, and maintained his commitment to get the project moving forward as soon as possible.  Finally, in June 2022, he received the green light to move ahead.  Between June and October 2022, 136 cameras and 81 acoustic devices were installed across 50 sites at BDFFP.

Today, to Luther’s great delight, the results have proved far more successful than he could have ever anticipated. Tens of thousands of animal images from camera traps and audio recordings have already been collected.

To analyze the data, Luther built a team of 15 George Mason undergraduate researchers, artificial intelligence experts, and a non-profit organization (Arbimon) that specializes in analyzing acoustic recordings from the tropics to help identify animals.

In the fall of 2022, Luther mentored student researchers to help with the endeavor. Aline Medeiros, a PhD student in Environmental Science and Policy (ESP), helped manage the undergraduate researchers working on the audio files. Volunteer students on this project were Alexis Lembke, Amanda Jones, Adriana Em, Madison Cheung, Morgan Ellingsworth, and Grace Carriero. Medeiros will also use the captured data as the basis of her PhD research.

Another set of students helped identify animals in the camera images and entered that information into a large database. Hibo Hassan, Jordan Seidmeyer, Katie Russell, Carolian Sanabria, Adrian Em, Alix Upchurch, Piper Robinson, Tristan Silva-Montoya, and Estefany Umana spent hours creating this treasure trove of records. Emilia Roberts, a MS student in ESP, managed these undergraduate researchers.

Explains Luther, “For the acoustic recordings, we built templates for 250 bird species, and trained AI models to automatically detect and classify songs for each. We have already detected 201 of the 250 species. The model performed very well in our evaluations, achieving an average precision across all classes of 0.94.  Thanks to our model, new recordings can be passed through it to automatically detect species calls, facilitating long-term monitoring and efficient analyses moving forward. We are now working with local experts in Manaus, Brazil to apply the same platform for frogs at our study sites in the Amazon rainforest.”

The biodiversity data of birds and mammals is being used to assess how each species responds to variations in forest structure and recovery from forest fragmentation. Luther brought on Konrad Wessels from George Mason’s Geography & Geoinformation Science Department to assist with satellite information from the Global Ecosystem Dynamics Investigation instrument (GEDI).  GEDI uses high resolution lasers to provide detail in three-dimensional forest structure. The GEDI results will build predictive models looking at how the three-dimensional forest structure can forecast mammal and bird diversity and individual species occurrence in tropical rainforests. In an important finding, the team has determined that the diversity of three-dimensional forest structure heights and density of foliage is the biggest predictor of mammal and bird diversity.

The project continues to gain traction. The team has created a website featuring the results of the acoustic portion of the research, https://bio.rfcx.org/bdffp-acoustics, which has been very well received.

In addition, some of the acoustic training models were used by teams competing for the X-Prize, a competition designed to encourage technological developments supporting “radical breakthroughs for the benefit of humanity.”

Luther also applied for and received a $200,000 National Science Foundation grant which built off of the 4-VA funded study and is being used in part to continue both the camera and acoustic research.  Luther and Wessels recently submitted a grant to NASA to expand on the research findings and apply them to the entirety of the Amazon basin.

Concludes Luther, “Through 4-VA@Mason, this project is up, running, and delivering fantastic information that will help scientists worldwide better design monitoring schemes for biodiversity in remote tropical forests, as well as those interested the relationship between habitat structure and degradation and species resilience to disturbance. The grant helped us get to the first step, and we are confident this project will continue to expand in the future with our excellent Brazilian collaborators, current NSF funding, and other future external funding.”

4-VA Calls for Proposals: Course Redesign for Virginia Institutions of Higher Learning

 

4-VA statewide is now accepting proposals which provide new opportunities for course redesign.  The consortium is interested in the collaborative development of specific course elements and sequence of courses, supporting faculty-led research that could inform a future course or program redesign effort, or support the convening of stakeholders throughout the commonwealth on the topic of course redesign and embedded experiential learning.

Faculty and staff from 4-VA’s member institutions are eligible to apply for a grant of up to $40,000. Proposals must involve at least three 4-VA institutions, with one institution designated as the Project Lead and the others as Co-Leads. Successful submissions will propose projects that impact more than one institution and are not duplicative of existing statewide efforts. Proposed projects must be available to share among all 4-VA members and accessible to a broader set of stakeholders.

Proposals are being accepted through November 1, 2024.  Funding will be available in early January 2025 and the project must be substantially completed by June 30, 2026.

For more information and to access the submission link click here.

 

George Mason Team Identifies Technology to Enhance Artificial Photosynthesis

 

When a 4-VA Collaborative Research Grant results in the production of a novel concept for technology solutions to support energy and climate issues, while also sharing resources and data between higher education institutions in Virginia and providing faculty and student research opportunities, it is another win for the program. 

This was achieved following 4-VA’s approval of a proposal by George Mason’s Yun Yu, an Assistant Professor in Chemistry and Biochemistry Department, for a grant entitled Nanoscale Visualization of Electrocatalytic Carbon Dioxide Reduction Activity at Cu Nanocatalysts.  Yu’s goal was to investigate options in catalytic electrode materials to improve and enhance electrocatalysis, a process essential for harnessing sustainable energy sources for artificial photosynthesis. While nanostructures are currently recognized as the most successful catalyst for many chemical reactions, there is more to understand about tailoring their crystalline planes to improve activity and selectivity. 

Yu wanted to gain deeper insights into various nanocatalysts used in carbon removal technologies. The conventional approach to conducting this study often involves measuring the entire catalyst, composed of numerous small particles with varying sizes and shapes. However, critical information, such as the impact of heterogeneities on performance, is often lost in such ensemble measurements.  Yu saw the potential for leveraging the the nanoscale scanning electrochemical microscopy on the George Mason campus to obtain detailed surface reactivity maps of nanocatalysts.  However, to do so, Yu needed to acquire shape-controlled nanostructures, including copper nanowires, copper nanocubes, and nickel–iron layered nanosheets.  He did so through a partnership with Sen Zhang, Associate Professor of Chemistry at UVA. 

Yu’s team, graduate student Dan Tran and undergraduate students Solyip Kim, Melissa Nguyen, and Mackenzie Dickinson played a key role in the project, receiving funding and real-world research experience. Together, they identified furfural reduction, an important reaction for sustainable biofuel generation. They noted a distinct contrast in activity between copper and graphite support. “These preliminary experiments have demonstrated the viability of our scanning electrochemical technique in spatially resolving catalytic activity across nanoscopic structures,” explains Yu. They further expanded the application to the study of nickel–iron catalysts. “Our data suggested that adding trace amount of cerium oxide to the catalysts significantly enhances water oxidation activity. We would not have these insights without this powerful electroanalytical technique.” says Yu.  

The initial results have provided Yu with a springboard to develop external grant proposals to systematically study the role of cerium oxide and quantify the effects of its loading on the apparent catalytic activity of the developed catalysts.  “This 4-VA opportunity allowed us to create a partnership with UVA, create a team to implement further investigation via George Mason’s nanoscale scanning electrochemical microscopy, and now apply for further funding to move this project forward,” concludes Yu. 

 

Pictured in Featured Image: Graduate student Dan Tran operating the scanning electrochemical microscope.

4-VA@Mason Award Produces Important Results in Childhood Working Memory Research

In the Developing Minds Lab at George Mason, Sabine Doebel says she has a dream job. As an undergraduate, she became fascinated by children’s thinking and how it changes with age. Now, as an assistant professor in the Department of Psychology, where she directs the Lab, she spends much of her time designing studies to understand how young children learn to think and act flexibly — that is, how they develop ‘executive function’ skills. Although these skills are vital to children’s success in school and beyond, much remains unknown about their development.

Particularly important for academic success is working memory — the capacity to maintain and manipulate information of known words, numbers, and other symbols. Working memory is often measured using tests including the Backward Digit Span, in which children repeat increasingly long sequences of digits in backwards order. “I have always been interested in how experience may shape working memory skills,” says Doebel. She was particularly curious about how early learning experiences at home— specifically in the domains of literacy and numeracy — could foster growth in working memory span.

Through an earlier 4-VA award, Doebel had the opportunity to share this new project idea with her colleague and mentor, Angeline Lillard, a widely respected developmental psychologist and researcher in the Department of Psychology at UVA. Explains Doebel, “Our collaboration would not have taken off the way it did if it hadn’t been for Angeline, because she was the one who sent me an email about 4-VA. She said, ‘Have you heard of 4-VA? We should consider this option.’”

When 4-VA@Mason approved Doebel’s proposal “How Does Experience Support Working Memory Development?” the team got to work.  Doebel’s lab recruited and tested over 100 children on four different variations of the backward span tasks. Parents also completed a detailed survey reporting frequency and variety in various home learning practices.  Lillard leveraged her own participant pool and school connections to recruit an additional sample of conventionally schooled and Montessori-educated children.

Doebel enlisted Mason undergraduate student Jordan Hassani and PhD student Nicole Stucke to collect the data. Hassani created the survey, tested the children, and coded the data.  Stucke, who has functioned as the Developing Minds lab manager, helped with testing. Other team members, including Mason undergraduate Scarlett Bird-Guerra, were involved in community-based recruitment efforts.

Jordan Hassani
Nicole Stucke with child in study

UVA undergraduate Maksud Juraev and graduate student Abigail Kissinger led the UVA data collection efforts.

The team noted that the results were both predicted and surprising.  As expected, they found that children show larger backward spans for items that are relatively familiar—for example, performance on trials that involved the digits 1, 2, 3 was better than on trials involving 7, 8, 9. However, while Doebel expected that children who engaged in more numeracy practices at home might show better performance on a backward span task involving digits, this was not found to be evident.  Instead, it was observed that the backward digit span was related to home literacy practices, and that this was true even after accounting for effects of other home learning practices and age.

Doebel presented the findings at the American Psychological Association and at the Society for Research on Child Development. She plans to submit manuscripts to academic journals in the field.

Next up for the team is to dive deeper into Lillard’s connections in Charlottesville with Montessori schools to test whether children who are Montessori-educated show larger backward digit spans than children who are educated in conventional schools, as expected given the emphasis Montessori schools place on literacy and numeracy.

Doebel reflects on the relationships and growth experienced through the 4-VA project, “As a result of this funding, my students have progressed in their career trajectories — Jordan is now at the University of Maryland as a research coordinator in a NIH-funded lab, and he’s hoping to gain admittance to a Ph.D. program in clinical psychology. He got that opportunity in part because he participated in this project through 4-VA where he engaged real research experience.”

Victoria Rabii

The original project has also led to a further study that will investigate the role of language in working memory by exploring how bilingual children with varying degrees of exposure to numerical language perform on the backward digit span task. This project is led by Victoria Rabii, a rising second year PhD student in the Applied Developmental Psychology program who is co-mentored by Doebel and Dr. Adam Winsler and funded by a Presidential Scholarship. The goal of the project is to better understand how young children’s working memory performance may be affected by their proficiency with relative linguistic concepts. “Previously, when children scored low on the task it was pretty common for this to be interpreted as indicating low working memory ability. But now things are changing a bit and we are asking whether children may show better performance if they are more fluent with the content that is integral to the task,” says Doebel.

Personally, and professionally, Doebel is grateful for the collaboration with Lillard.  “Angeline has been a major mentor for me — it means a lot to have a relationship with her.  We have published together previously, and we are always thinking about new project ideas that could lead to external funding. This likely never would have happened if not for 4-VA,” Doebel concludes.

 

 

Seventeen George Mason Faculty Awarded 4-VA Grants

Through 4-VA@Mason, faculty from schools across George Mason University have embarked on new pilot research projects in collaboration with higher education institutions throughout Virginia.  The 4-VA Collaborative Research Grants, first launched in the 2013-2014 academic year, are designed to forge relationships in Virginia higher education to leverage the strengths of each school, decrease working in silos, and launch novel research projects that can provide a springboard for future external funding.  Other schools in the 4-VA system are the College of William and Mary, James Madison University, Old Dominion University, University of Virginia, Virginia Commonwealth University, Virginia Military Institute, and Virginia Tech.  Christopher Newport University is also participating in Collaborative Research Grants.

During the 2024-25 year, nine of the Collaborative Research Grants are being led at George Mason and 11 faculty members will serve as co-PIs for research spearheaded at partner institutions.  Janette Kenner Muir, Vice Provost, Academic Affairs and Campus Coordinator of 4-VA@Mason, notes that the 24-25 proposals were especially strong, “Each year, we are more and more impressed with the breadth and depth of the proposals providing our faculty this unique opportunity.”

The 4-VA@Mason 2024-25 Collaborative Research Grant awardees, proposal title and partner schools (in parentheses) are:

  • Christova, Rosalina; College of Science, Department of Environmental Science and Policy and Potomac Environmental Research and Education Center – Integrative Characterization of the Anatoxin-a-Producing Benthic Cyanobacterial Genus Microcoleus in the Shenandoah River (UVA/Wise)
  • Croitoru, Arie; College of Science, Department of Computational and Data Sciences & Center for Social Complexity – Quantum-Inspired Modeling for Understanding Social Complexity (ODU)
  • Kabbani, Nadine; College of Science, School of Systems Biology – Proteomic profiling of molecular changes associated with chemotherapy induced neuropathy (VCU)
  • Lee, Myeong; College of Engineering and Computing, Department of Information Sciences and Technology – Understanding Multidimensional Measures of Social Capital: Impacts of Ethnic Heterogeneity, Social Classes, and Historical Legacies of Urban Policy (VCU)
  • Luke, Rayanne; College of Science, Department of Mathematical Sciences – Data-Driven Modeling of the Time-Dependent Immune Response to Infection and Vaccination (UVA)
  • Madden, Amanda; College of Humanities and Social Sciences, Department of History – Historical Mapathons: Team-Based GIS Training and Transformation of Seventeenth Century Maps (VT)
  • Nam, Sang; College of Visual and Performing Arts, Computer Game Design Program – Developing A Multimodal LLM AI Agent for the XR, Extended Reality Platform for Personalized and Highly Immersive Trauma Training (UVA)
  • Zhang, Xiaokuan; College of Engineering and Computing, Department of Computer Science – Uncovering Secrets from Virtual Reality Headsets via Electromagnetic Side Channels (VT)
  • Zhang, Xijin (Emma); College of Engineering and Computing, Department of Civil, Environmental and Structural Engineering – Multifunctional Fungi-Based Biosurfactants for Durable Concrete Structures (UVA)

The following Mason faculty received funding as Co-PIs for the 24-25 academic year collaborating with other 4-VA institutions (in parentheses):

  • Bagheri, Shaghayegh; Mechanical Engineering – MOMENTUM: Assessing the Merits of Personalized Feedback with Generative AI for Foundational Engineering Mechanics Courses (VT)
  • Bloom, Michael S.; Global and Community Health – A new green space exposure index utilizing AI methods and an eye-tracking device (VT)
  • Bray, Harrison and Lukyanenko, Anton; Mathematical Sciences – Collaborative workshops in topology (UVA)
  • Dong, Pei; Mechanical Engineering – Printing of Ultrathin Conductive Films on Liquid for 3D Wearable Electronic (UVA)
  • Otis, Jessica; History and Lawrence, Heidi; English/Medical Rhetoric – Human Dimensions of Infectious Diseases (VT)
  • Yang, Jingyuan; Costello College of Business – Building Machine Learning Resilience During Disasters (UVA)

 

Researchers Develop Computational Models to Support Successful Organization of Local Events

As illustrated in Robert Putnam’s renowned book “Bowling Alone: The Collapse and Revival of American Community,” Americans have become increasingly isolated over the decades, often spending leisure time alone without social gatherings. During the COVID-19 pandemic, this issue of isolation was exacerbated, calling further attention to the public health crisis of loneliness and isolation in the United States.

To help encourage in-person gatherings, Event-Based Social Networks (EBSNs), such as Meetup.com and Facebook Events, have become an increasingly vital tool for facilitating these occasions based on shared interests — ranging from farmers’ markets to game nights. To maximize the effectiveness of EBSNs, a group of Mason faculty members with interests in community engagement, machine learning, and geographical data analysis wanted to take a closer look at how these arranged local gatherings fluctuated depending on community and group characteristics. They were able to undertake this analysis following the approval of their 4-VA@Mason Collaborative Research Grant proposal entitled “AI for AI: Toward Community-level Human-AI Collaborations in Local Meetups.

Led by Myeong Lee, Mason’s Assistant Professor of Information Science and the Director of the Community Informatics Lab, the researchers also included former College of Science faculty members Olga Gkountouna, who assisted with machine learning model development, and Ron Mahabir who provided insight on geographical data analysis. Amr Hilal of Virginia Tech helped with data analytics from a machine learning perspective.

While it is known that EBSN users’ participation in Meetup events are influenced by group organizers’ promotions and event frequency, the effects of ecological factors, such as the number of similar groups surrounding a Meetup group, had not been previously studied. The goals of the project were to quantitatively examine how EBSN groups’ ecological features shape the performances of Meetup groups within that organizational ecology. They also wanted to create baseline benchmarks for how state-of-the art AI technologies can predict Meetup groups’ success.

To do so, the team conducted two studies of Meetup data for 500 cities in the US, extracting factors pertaining to “Meetup niches,” which considers similar groups surrounding a Meetup location.

The results revealed intriguing patterns, one of which was that if a Meetup group’s description resembles other groups in their geographical area, it tends to attract more participants. In a second finding, the team implemented three advanced machine learning models to predict the success of local Meetup groups, finding that the performances of these prediction models vary across different categories and cities, with some outperforming the state-of-the-art models.

“Overall, our research during the 4-VA project period will provide a basis for understanding human-AI collaboration at the community level by revealing how various factors shape and predict the success of local groups,” says Lee.

Lee credits the success of their findings to a strong team of student researchers, including graduate students Julia Hsin-Ping Hsu who worked on developing deep learning models and ecological features and Ishana Shinde who assisted in calculating community-level features. Undergraduates Victoria Gonzales focused on descriptive statistics of variables; Joel Adeniji managed visualization; and Nnamdi Ojibe handled data cleaning and geographical data aggregation.

The group is now disseminating their findings in the field – one study was published at the International Conference on Communities and Technologies (C&T), and the other is under submission to a premier journal. Lee is planning to write an external NSF grant using the preliminary results from the research, proposing the curation of Meetup-based social gathering data with the promising community-level ecological factors.

“The 4-VA@Mason grant significantly helped me and my team jump-start the project and develop the research studies,” says Lee.  “What’s more, it allowed the team to connect with researchers outside of Mason to discuss additional meaningful community-based topics, thus broadening our future possibilities.”

 

 

 

Modeling Green Infrastructure to Ensure Urban Sustainability

 

Green infrastructure (GI), utilizing plant or soil systems, permeable pavement, and other mitigators to filter and absorb stormwater where it falls, is a topic of interest to a variety of stakeholders. City and local government officials, utility and engineering companies, and environmental organizations as well as private citizens recognize the need to reduce potentially dangerous and contaminated water flows to sewer systems or surface waters.

Efficient stormwater management in highly urbanized communities is especially critical, considering how floods and droughts could be caused or exacerbated by climate change. However, creating an effective model to examine runoff possibilities requires careful consideration of a wide array of factors including climate data, soil types, water flow patterns, and current land usage.  Furthermore, it is imperative that other elements — geographic, demographic, economic, and ecological — be factored into the model.

That was just the challenge Younsung Kim in Mason’s Department of Environmental Science and Policy wanted to take on.  Kim, who has an extensive background in complex environmental and sustainability issues, saw the potential of incorporating freely available data from US Geological Society and Census Bureau along with the local county government land use zoning data to create a computational spatial model to help identify what works, and what doesn’t work, in GI.

Kim also recognized the importance of applying the prototype in a real-world setting.  To do so, she and her research team identified several eastern Fairfax County locations along the Route 1 corridor in Virginia, including the communities of Huntington, Waynewood, and Fort Hunt to illustrate how the model might work. Finally, Kim wanted to incorporate today’s trends in GI architecture in the research; identifying UVA’s School of Architecture as a leading source of urban planning and spatial analysis expertise.

This robust goal was brought to fruition after Kim’s proposal “Assessing Green Infrastructure Potential Using Multi-level Ecological and Economic Factors: The Northern Virginia Case” won a 4-VA@Mason Collaborative Research Grant.  Kim’s co-PI at UVA, Vanessa Guerra, received a 4-VA Complementary Grant for her work on the project.

Kim also tapped a number of other sources, including Alex Iszard and Greg Farley in Mason’s Facilities Administration, who offered their GI perspective from a facility management standpoint.

Kim’s PhD student Colin Chadduck assisted in the development of the computational model, studying the ecological and economic factors important for GI site identification. Mason undergraduate students Caroline Miller, Dahvi E Hochman, and Nicolas Bataille provided data collection and literature review support.  Undergraduate Sunho Oh played the same role at UVA.  Additionally, Elizabeth Grant, formerly a professor at Virginia Tech, advised on the subject of experimental designs of green roof systems.

Together, the team developed a proven successful computational model incorporating ecological and economic dimensions for GI placement which has received national and international attention.

The research outcomes were presented at the American Society for Public Administration Annual Conference, the Midwest Political Science Association Conference, and at a Mason Earth Day event.  A paper entitled “Mapping Green Infrastructure from Stormwater” was published in Environmental Pollution and Climate Change.

Based on the spatial analysis method developed on the project, Kim won a grant from the Korea International Cooperation Agency to develop resilience enhancement action programs for climate refugee communities in the Philippines.

The project now extends to increase public awareness. Kim and her students are developing a GI webpage that will include resources and a video clip focusing on green infrastructure.

“This 4-VA@Mason grant has created results-oriented direction for GI within Fairfax County, the Commonwealth of Virginia, and beyond; and cemented a long-term collaborative relationship between our environmental policy research group here at Mason and the environmental planning lab at UVA,” noted Kim.  “We believe our results have far-reaching possibilities and impact on urban sustainability.”

 

4-VA Team Applies Novel Technology to Functional Magnetic Resonance Imaging

Incorporating control-theoretic methods into neuroscientific research was the interest that brought together Xuan Wang, Assistant Professor in Mason’s Electrical and Computer Engineering, and Mainak Patel, Assistant Professor of Mathematics at William and Mary.   Supported by a 4-VA grant, the two wanted to look closer at adapting cutting edge technology in functional magnetic resonance imaging (fMRI) to create a new approach to facilitate the prediction and regulation of the firing rate dynamics of brain neurons.  The real-world application of this research is to facilitate brain disease treatment, such as epilepsy, and brain-computer interface.

“As a result of this project, we have developed two network models, a firing rate dynamics model describing the microscale neuronal activities of the brain; and another to measure the small changes in blood flow that occur with brain activity,” explains Wang.  “We have also created an effective data-driven algorithm that can reconstruct and predict the rate and fMRI dynamics of the brain.”

Wang and Patel received human brain fMRI data from United States Naval Academy through Assistant Professor Duy Duong-Tran and support from Li Shen, Professor of Informatics in Biostatistics and Epidemiology at the University of Pennsylvania.

Results of the research have been publicly shared via two abstracts at the Organization for Human Brain Mapping conference.  Follow-up work submitted to the 2024 Medical Image Computing and Computer-Assisted Intervention Conference is currently under review. Another paper on the project was submitted to the Institute of Electrical and Electronics Engineers Transaction on Automatic Control and is currently being considered for publication.

Graduate student Muhammad Umair (left), who gathered and processed fMRI and firing rate data for the research, won first place at the College of Engineering and Computing Innovation Week at Mason with a poster titled ‘Subject and Task Fingerprint using Dynamic Reconstruction from fMRI Time-series Data’.

Based on the results of the 4-VA project, Shen, Duong-Tran, and Wang are currently preparing a National Science Foundation grant proposal for more extensive research.

“Thanks to the seed funding from 4-VA, my collaborators were able to jump-start our research. We successfully validated preliminary hypotheses and will now leverage our findings further. Currently, we are in the process of applying for larger grants to sustain and expand our efforts on this topic,” adds Wang.

 

 

 

 

4-VA@Mason Funded Project Creates Professional Learning Series to Support Inclusive Classroom Co-teaching

 

Almost 10% of Virginia’s students aged 6-21 are identified as students with disabilities. Of this group, almost 68% spend the majority of their school day in inclusive, general education classrooms receiving special education services through co-teaching partnerships of general and special education teachers.

Observations of this teaching arrangement, however, reveal challenges faced by special education teachers who often simply act as an assistant. Consequently, they are often not able to deliver the specially designed instruction necessary to meet the learning needs of the student with disabilities. Co-teachers often do not understand the expectations for this scenario, or they have not received the professional learning appropriate for their classroom. Without a true co-teaching partnership, the achievement outcomes for students may not be met.

This dilemma had been on the mind of Margaret Weiss, Associate Professor of Special Education at Mason who has long researched co-teaching and pre-service teacher preparation.  She saw an acute need to develop and then test a hybrid professional learning series to prepare general and special education teachers in secondary inclusive classrooms to implement effective co-teaching practices.

In projecting out this need, Weiss knew that longtime colleague Wendy Rodgers, an Associate Professor at VCU, would be the perfect collaborator. Rogers specializes in inclusive classrooms, co-teaching, learning disabilities, single-case design methods, collaboration, and classroom observation.  As VCU is a partner in the 4-VA network, Weiss was able to invite Rodgers to join her in a 4-VA proposal as a co-principal investigator, which was subsequently greenlighted by the 4-VA@Mason Advisory Board.

Weiss and Rodgers began by assembling a team including graduate student Karli Zilberfarb at VCU and Holly Glaser from Mason for module development and production, and Boris Gafurov at Mason to develop applications.  Together, they created five professional learning modules which include information, readings, checklists, sample lesson plans, reflection documents, video samples from teacher classrooms, and application activities for teachers who are learning to co-teach together.  The series was then pilot tested by teachers at Liberty High School in Fauquier County, Va.  Although not originally planned, the 4-VA team also developed a web-based, shareable co-teaching lesson planning application that is also being pilot tested in local schools.

Weiss enlisted the help of Virtual Virginia’s Steven Sproles as module host and the Virginia Department of Education Training and Technical Assistance Center at Mason for further review of materials.

Upon presentation to teachers, the series was especially well received and was found to be very helpful as the procedures were implemented in classrooms. Weiss notes, “It has been great to be able to create these materials. We are very excited about reactions we have from school divisions and professionals in Virginia and beyond.” (School divisions in North Carolina and Georgia have already shown an interest in the program.)

Continues Weiss, “This 4VA grant was a fantastic opportunity for Wendy and me to bring our ideas to fruition; we had not been able to dedicate the time and energy to making it happen before this grant. I am hoping that this pilot study will set us up in a great position to apply for a significant external funding award.”