Mar. 19, 2025
Dingding Han adjusts an infrared camera pointed at a test subject sitting in front of a black curtain. On a computer screen to her left is a thermal image of the subject. (Photo: Candler Hobbs)

Postdoctoral scholar Dingding Han adjusts a thermal camera capturing an image of Ph.D. student Corey Zheng. Using an advanced processing technique on the raw thermal image, Han, Zheng, and their collaborators can accurately measure body temperature, heart rate, and respiration rate. Their noncontact technology could open new possibilities for vital sign monitoring and early disease detection. (Photo: Candler Hobbs)

Biomedical engineers at Georgia Tech have developed a system for collecting and processing thermal images that allows for reliable, detailed measurement of vital signs such as respiration and heart rate or body temperature.

Their monitoring approach is passive and requires no contact. The system could one day lead to early detection for cancer or other diseases by flagging subtle changes in body tissues.

The researchers have overcome the spectral ambiguity inherent in conventional thermal imaging, sharpening the texture and detail they can extract from images and removing the effects of heat from the environment surrounding a subject. They published details of their work March 19 in the journal Cell Reports Physical Science.

Read the full story on the College of Engineering website.

News Contact

Joshua Stewart
College of Engineering

Mar. 19, 2025
A 40-year field study of Galápagos ground finches (Geospiza sp.) has provided unparalleled insights into how natural selection operates in the wild and how new species might form. (Illustration: Mark Belan/ArtSciStudios)

A 40-year field study of Galápagos ground finches (Geospiza sp.) has provided unparalleled insights into how natural selection operates in the wild and how new species might form. (Illustration: Mark Belan/ArtSciStudios)

A long-term field study of Californian stick insects (Timema cristinae) reveals how competing selection pressures shape their evolution. (Illustration: Mark Belan/ArtSciStudios)

A long-term field study of Californian stick insects (Timema cristinae) reveals how competing selection pressures shape their evolution. While brown-colored stick insects experience lower predation rates from Californian scrub jays (Aphelocoma californica) than their green counterparts during hot, dry years when bright green leaves are scarce, they face higher mortality due to reduced heat tolerance. This trade-off demonstrates how climate and predation simultaneously drive evolutionary adaptation in natural populations, and this case study has been used to develop statistical models that predict future evolutionary outcomes. (Illustration: Mark Belan/ArtSciStudios)

Founded in 1988, the Long-Term Evolution Experiment (LTEE) is the world’s longest-running ongoing evolution experiment now spanning 75,000 generations. Twelve genetically identical populations of the bacterium Escherichia coli have been allowed to evolve under constant conditions, and have uncovered general principles of evolutionary dynamics, such as how evolutionary novelties arise. (Illustration: Mark Belan/ArtSciStudios)

Founded in 1988, the Long-Term Evolution Experiment (LTEE) is the world’s longest-running ongoing evolution experiment now spanning 75,000 generations. Twelve genetically identical populations of the bacterium Escherichia coli have been allowed to evolve under constant conditions, and have uncovered general principles of evolutionary dynamics, such as how evolutionary novelties arise. (Illustration: Mark Belan/ArtSciStudios)

Long-term studies at the Rocky Mountain Biological Laboratory in Colorado, USA, reveal that Drummond’s rockcress (Boechera stricta), a North American wildflower, now bloom almost 4 days earlier each decade since the 1970s, responding to earlier snowmelt in the region. Long-term field studies are the key to understanding how species in the wild are evolving in response to climate change. (Illustration: Mark Belan/ArtSciStudios)

Long-term studies at the Rocky Mountain Biological Laboratory in Colorado, USA, reveal that Drummond’s rockcress (Boechera stricta), a North American wildflower, now bloom almost 4 days earlier each decade since the 1970s, responding to earlier snowmelt in the region. Long-term field studies are the key to understanding how species in the wild are evolving in response to climate change. (Illustration: Mark Belan/ArtSciStudios)

A series of experiment spanning 40 years on small islands in the Bahamas have revealed how prey species, like small brown anole lizards (Anolis sagrei), evolve in response to predators, like the larger curly-tailed lizard (Leiocepahlus carinatus). Importantly, due to the long-term nature of this research, scientists were able to track ecosystem changes in response to this predator-driven rapid evolution. (Illustration: Mark Belan/ArtSciStudios)

A series of experiment spanning 40 years on small islands in the Bahamas have revealed how prey species, like small brown anole lizards (Anolis sagrei), evolve in response to predators, like the larger curly-tailed lizard (Leiocepahlus carinatus). Importantly, due to the long-term nature of this research, scientists were able to track ecosystem changes in response to this predator-driven rapid evolution. (Illustration: Mark Belan/ArtSciStudios)

Georgia Tech scientists are revealing how decades-long research programs have transformed our understanding of evolution, from laboratory petri dishes to tropical islands — along the way uncovering secrets that would remain hidden in shorter studies.

Through a new review paper published in Nature, the researchers underscore how long-term studies have captured evolution's most elusive processes, including the real-time formation of new species and the emergence of biological innovations.

"Evolution isn't just about change over millions of years in fossils — it's happening all around us, right now," says James Stroud, the paper’s lead author and an Elizabeth Smithgall Watts Early Career Assistant Professor in the School of Biological Sciences at Georgia Tech. "However, to understand evolution, we need to watch it unfold in real time, often over many generations. Long-term studies allow us to do that by giving us a front-row seat to evolution in action."

The paper, “Long-term studies provide unique insights into evolution,” is the first-ever comprehensive analysis of these types of long-term evolutionary studies, and examines some of the longest-running evolutionary experiments and field studies to date, highlighting how they provide new perspectives on evolution. For example, in the Galápagos, a 40-year field study of Darwin’s finches — songbirds named after evolutionary biology’s famous founder — documented the formation of a new species through hybridization. In the lab, a study spanning 75,000 generations of bacteria showed populations unexpectedly evolving completely new metabolic abilities.

“These remarkable evolutionary events were only caught because of the long-term nature of the research programs,” Stroud says. “Even if short-term studies captured similar events, their evolutionary significance would be hard to assess without the historical context that long-term research provides.”

“The most fascinating results from long-term evolution studies are often completely unexpected — they're serendipitous discoveries that couldn't have been predicted at the start,” explains the paper’s co-author, Will Ratcliff, Sutherland Professor in the School of Biological Sciences and co-director of the Interdisciplinary Ph.D. in Quantitative Biosciences at Georgia Tech.

“While we can accelerate many aspects of scientific research today, evolution still moves at its own pace,” Ratcliff adds. “There's no technological shortcut for watching species adapt across generations.” 

Decades of discovery — from labs to islands

The new paper also highlights a growing challenge in modern science: the critical importance of supporting long-term research in an academic landscape that increasingly favors quick results and short-term funding. Yet, they say, some of biology's most profound insights emerge only through multi-decadal efforts.

Those challenges and rewards are familiar to Stroud and Ratcliff, who operate their own long-term evolutionary research programs at Georgia Tech. 

In South Florida, Stroud’s ‘Lizard Island’ is helping document evolution in action across the football field-sized island’s 1,000-lizard population. By studying a community of five species, his research is providing unique insights into how evolution maintains species’ differences, and how species evolve when new competitors arrive. Now operating for a decade, it is one of the world’s longest-running active evolutionary studies of its kind.

In his lab at Georgia Tech, Ratcliff studies the origin of complex life — specifically, how single-celled organisms become multicellular. His Multicellularity Long Term Evolution Experiment (MuLTEE) on snowflake yeast has run for more than 9,000 generations, with aims to continue for the next 25 years. The work has shown how key steps in the evolutionary transition from single-celled organisms to multi-celled organisms occur far more easily than previously understood.

Important work in a changing world

Stroud says that the insights from these types of studies, and this review paper, are arriving at a crucial moment. “The world is rapidly changing, which poses unprecedented challenges to Earth's biodiversity,” he explains. “It has never been more important to understand how organisms adapt to changing environments over time.”

“Long-term studies provide our best window into achieving this,” he adds. “We can document, in real time, both short-term and long-term evolutionary responses of species to changes in their environment like climate change and habitat modification."

By drawing together evolution's longest-running experiments and field studies for the first time, Stroud and Ratcliff offer key insights into studying this fundamental process, suggesting that understanding life's past — and predicting its future — requires not just advanced technology or new methods, but also the simple power of time.

 

Funding: The US National Institutes of Health and the NSF Division of Environmental Biology

DOI: https://doi.org/10.1038/s41586-025-08597-9

News Contact

Written by Selena Langner

Contact: Jess Hunt-Ralston

Mar. 18, 2025
Heart Fellows main photo
Heart Fellows individual pics and group shot

Clockwise from top left: Yohannes Akiel, Leandro Choi, Isabel Wallgren, Deborah Wood, the entire current cohort of Fellows, Deborah Wood, and Aniket Venkatesh.

In 2023 the Wallace H. Coulter Department of Biomedical Engineering launched a new program designed to train the next generation of leaders in cardiovascular research. Five first-year graduate students formed the first cohort that fall.

Currently, there are nine students in the Cardiovascular Biomechanics Graduate Training Program at Emory and Georgia Tech (CBT@EmTech). The program offers two years of training in an assortment of disciplines, including cardiovascular biomechanics, mechanobiology, medical imaging, computational modeling, medical devices, therapeutics discovery and delivery, and data science.

“The goal of the program is to stimulate interdisciplinary training,” so we expose the students to multiple areas of research,” says Hanjoong Jo, CBT@EmTech director, Wallace H. Coulter Distinguished Professor. 

“And we have a very diverse group of trainees interested in various aspects of cardiovascular research and medicine,” Jo added. “Four out of five students from our first cohort already have secured prestigious fellowships, demonstrating the caliber of the trainees in the program.”

The students from that cohort brought a wide range of experiences, interests, and ambitions to the program. Now in their final months as CBT@EmTech trainees, they took time to share their stories.

 

Yohannes Akiel

Principal Investigator: Michael Davis

Campus: Emory

Undergraduate: University of Texas-San Antonio
I've always had a passion for helping people and I feel that I’m doing this through my research on aortic valve tissue engineering for pediatric patients. Aortic valve disease is found in 1-2% of live births, because of congenital heart defects or infections. Current valve replacements are limited — for one thing, they’re incapable of growing and remodeling with the patient. This presents a need for a new tissue-engineered valve that can address these challenges. In the Davis lab, we’re working on a tissue engineered heart valve to provide a better, long-term solution. 

Throughout my time in the CBT@EmTech program, I've gained a range of knowledge in the cardiovascular space, learning about atherosclerosis, peripheral artery disease, valve disease, as well as computational and imaging techniques to help solve some of these problems. As part of the program, we are also required to take an Advanced Seminar class in the cardiovascular area. 

Through this class, I was able to participate in some interesting clinical observations in the Emory University Hospital cardiology department. For example, I watched a cardiologist perform a transesophageal echocardiogram. The doctor was checking for heart blockages on a patient who had atrial fibrillation. This procedure was followed by a cardioversion to restore a normal heart rhythm. This was a profound demonstration of biomedical technology in action that left a lasting impression on me.

  

Leandro Choi

Principal Investigator: Hanjoong Jo

Campus: Emory

Undergraduate: Duke University

As a PhD student in the Jo Lab, I am studying how disturbed flow influences transcriptional regulation in endothelial cell reprogramming and atherosclerosis. Our goal is to identify and develop therapeutics that target non-lipid residual pathways contributing to this widespread and deadly disease. 

I initially became interested in this line of research due to a family history of cardiovascular disease. As an undergraduate, I worked in a tissue engineering lab where I employed stem cell and tissue engineering methods to model the circulatory system. A desire to further explore the role of mechanosensitive genes and proteins in cardiovascular disease led me to pursue a PhD in this field.

One of the most valuable aspects of the CBT@EmTech program has been the opportunity to connect with a network of students and faculty who are leaders in cardiovascular research. Through monthly meetings, we share our work and gain insights into the diverse engineering applications our interdisciplinary program brings to the field, with the common goal of improving cardiovascular health.

  

Aniket Venkatesh

Principal Investigator: Lakshmi Prasad

Campus: Georgia Tech

Undergraduate: Georgia Tech

 October 2024 marked the three-year anniversary of my uncle’s passing due to complications from a mild heart attack. His angiogram showed 30% vessel blockage, leading to heart surgery. Sadly, he suffered a brain stroke days later, resulting in deteriorating speech, muscle movement, and eventually death at 48. This personal tragedy brought urgency to my research questions: Can the risk of complications following cardiovascular treatments be predicted? Can underlying cardiovascular pathology be treated before it progresses to a heart attack or stroke? Was my uncle’s death preventable? These questions drive my cardiovascular research, focused on predicting post-procedural heart valve outcomes through computational modeling.

Being part of the prestigious CBT@EmTech program at Emory and Georgia Tech has significantly advanced my research journey. Learning from fellow trainees, presenting my research, and attending academia-focused workshops (like one about grant writing) have helped me stand out in heart valve computational modeling. The program, along with my PI, Dr. Lakshmi Prasad Dasi, and co-PI, Dr. John Oshinski, has provided the resources needed to translate my research from the lab to the clinic through regular meetings with clinicians and data transfer to and from hospitals. I am grateful for the opportunity to pursue my long-term goal of predicting risks of complications before cardiovascular treatments and helping prevent adverse clinical outcomes like those experienced by my uncle.

 

Isabel Wallgren

Principal Investigator: Simone Douglas-Green

Campus: Georgia Tech

Undergraduate Degree: University of Virginia

Peripheral artery disease (PAD) occurs when atherosclerotic plaque accumulates in limb arteries, blocking blood flow. Current interventions limit disease progression, but surgery is often needed to prevent critical limb ischemia. A less invasive approach promotes angiogenesis and arteriogenesis to strengthen collateral vessels and bypass blockages. The Hansen Lab studies satellite cells (SCs), which repair muscle fibers and release growth factors, as a potential PAD therapy.

My research focuses on improving the delivery of SCs using a special fibrin scaffold in a mouse model of blocked blood flow in the legs. By adjusting the properties of the fibrin scaffold, we can create an environment that helps these cells grow and renew themselves. We study how quickly the fibrin forms to ensure the cells stay where we inject them and how it breaks down to keep a steady supply of renewing SCs. We believe that with fibrin, the cells will move into the damaged tissue, repair muscle fibers, and release growth factors to encourage new blood vessel growth.

The goal is to create alternative treatments for PAD that prevent disease progression and improve patients' quality of life.

The CBT@EmTech program has given me a supportive network of peers and mentors, enhancing my growth as a researcher. The program chairs have tailored the curriculum to our needs and allowed us to shape it. For example, I’ve had the privilege of co-planning our biannual retreat. We recruited guests for two panels and invited a guest speaker for a storytelling workshop. This retreat shows how the program imparts knowledge beyond research, aiming to improve our scientific storytelling and self-presentation skills, valuable for any career.

  

Deborah Wood

Principal Investigator: Simone Douglas-Green

Campus: Georgia Tech

Undergraduate Degree: University of Virginia

As a researcher, I am challenged to explore the unknown. Moreover, my role as an engineer is rooted in using knowledge that has already been conceptualized. Combining these perspectives as a biomedical engineer has led me to pursue research with an emphasis on improving human health.

Today, cardiovascular diseases represent the global leading cause of death. While this glaring statistic indicates the egregious burden of cardiovascular diseases, my parents' lived experiences with cardiovascular diseases is what drives me to use my life’s work to address critical challenges at the intersection of the cardiovascular field and biomedical engineering. 

My research seeks to alleviate cardiovascular diseases by using nanoparticles to target endothelial cells, which line the innermost layer of blood vessels and contribute to blood vessel function. The Cardiovascular Biomechanics and Mechanobiology Program at Emory (CBT@EmTech) has given me an avenue to pursue this research. 

Through my CBT@EmTech co-mentorship, I have developed a foundation in endothelial cell biology and atherosclerosis. I have also been challenged to think critically about how my research benefits both science and society through my exposure to prominent cardiovascular researchers. My experiences with CBT@EmTech have made me eager to use my training to pursue a postdoc in the and eventually lead a lab answering critical questions in cardiovascular research.

 


 

News Contact

Jerry Grillo

Mar. 14, 2025
Phillip Si and Peng Chen
Phillip Si and Peng Chen

Successful test results of a new machine learning (ML) technique developed at Georgia Tech could help communities prepare for extreme weather and coastal flooding. The approach could also be applied to other models that predict how natural systems impact society. 

Ph.D. student Phillip Si and Assistant Professor Peng Chen developed Latent-EnSF, a technique that improves how ML models assimilate data to make predictions.

In experiments predicting medium-range weather forecasting and shallow water wave propagation, Latent-EnSF demonstrated higher accuracy, faster convergence, and greater efficiency than existing methods for sparse data assimilation.

“We are currently involved in an NSF-funded project aimed at providing real-time information on extreme flooding events in Pinellas County, Florida,” said Si, who studies computational science and engineering (CSE). 

“We're actively working on integrating Latent-EnSF into the system, which will facilitate accurate and synchronized modeling of natural disasters. This initiative aims to enhance community preparedness and safety measures in response to flooding risks.” 

Latent-EnSF outperformed three comparable models in assimilation speed, accuracy, and efficiency in shallow water wave propagation experiments. These tests show models can make better and faster predictions of coastal flood waves, tides, and tsunamis. 

In experiments on medium-range weather forecasting, Latent-EnSF surpassed the same three control models in accuracy, convergence, and time. Additionally, this test demonstrated Latent-EnSF's scalability compared to other methods.

These promising results support using ML models to simulate climate, weather, and other complex systems.

Traditionally, such studies require employment of large, energy-intensive supercomputers. However, advances like Latent-EnSF are making smaller, more efficient ML models feasible for these purposes.

The Georgia Tech team mentioned this comparison in its paper. It takes hours for the European Center for Medium-Range Weather Forecasts computer to run its simulations. Conversely, the ML model FourCastNet calculated the same forecast in seconds.

“Resolution, complexity, and data-diversity will continue to increase into the future,” said Chen, an assistant professor in the School of CSE. 

“To keep pace with this trend, we believe that ML models and ML-based data assimilation methods will become indispensable for studying large-scale complex systems.”

Data assimilation is the process by which models continuously ingest new, real-world data to update predictions. This data is often sparse, meaning it is limited, incomplete, or unevenly distributed over time. 

Latent-EnSF builds on the Ensemble Filter Scores (EnSF) model developed by Florida State University and Oak Ridge National Laboratory researchers. 

EnSF’s strength is that it assimilates data with many features and unpredictable relationships between data points. However, integrating sparse data leads to lost information and knowledge gaps in the model. Also, such large models may stop learning entirely from small amounts of sparse data.

The Georgia Tech researchers employ two variational autoencoders (VAEs) in Latent-EnSF to help ML models integrate and use real-world data. The VAEs encode sparse data and predictive models together in the same space to assimilate data more accurately and efficiently.

Integrating models with new methods, like Latent-EnSF, accelerates data assimilation. Producing accurate predictions more quickly during real-world crises could save lives and property for communities.

[Related: University of South Florida Researchers Track Flooding in Coastal Communities During Hurricanes Helene and Milton]

To share Latent-EnSF to the broader research community, Chen and Si presented their paper at the SIAM Conference on Computational Science and Engineering (CSE25). The Society of Industrial and Applied Mathematics (SIAM) organized CSE25, held March 3-7 in Fort Worth, Texas.

Chen was one of ten School of CSE faculty members who presented research at CSE25, representing one-third of the School’s faculty body. Latent-EnSF was one of 15 papers by School of CSE authors and one of 23 Georgia Tech papers presented at the conference.

The pair will also present Latent-EnSF at the upcoming International Conference on Learning Representations (ICLR 2025). Occurring April 24-28 in Singapore, ICLR is one of the world’s most prestigious conferences dedicated to artificial intelligence research.

“We hope to bring attention to experts and domain scientists the exciting area of ML-based data assimilation by presenting our paper,” Chen said. “Our work offers a new solution to address some of the key shortcomings in the area for broader applications.”

News Contact

Bryant Wine, Communications Officer
bryant.wine@cc.gatech.edu

Mar. 06, 2025
GT CSE at SIAM CSE25
SIAM CSE25 Tableau

Many communities rely on insights from computer-based models and simulations. This week, a nest of Georgia Tech experts are swarming an international conference to present their latest advancements in these tools, which offer solutions to pressing challenges in science and engineering.

Students and faculty from the School of Computational Science and Engineering (CSE) are leading the Georgia Tech contingent at the SIAM Conference on Computational Science and Engineering (CSE25). The Society of Industrial and Applied Mathematics (SIAM) organizes CSE25, occurring March 3-7 in Fort Worth, Texas.

At CSE25, the School of CSE researchers are presenting papers that apply computing approaches to varying fields, including:                   

  • Experiment designs to accelerate the discovery of material properties
  • Machine learning approaches to model and predict weather forecasting and coastal flooding
  • Virtual models that replicate subsurface geological formations used to store captured carbon dioxide
  • Optimizing systems for imaging and optical chemistry
  • Plasma physics during nuclear fusion reactions

[Related: GT CSE at SIAM CSE25 Interactive Graphic

“In CSE, researchers from different disciplines work together to develop new computational methods that we could not have developed alone,” said School of CSE Professor Edmond Chow

“These methods enable new science and engineering to be performed using computation.” 

CSE is a discipline dedicated to advancing computational techniques to study and analyze scientific and engineering systems. CSE complements theory and experimentation as modes of scientific discovery. 

Held every other year, CSE25 is the primary conference for the SIAM Activity Group on Computational Science and Engineering (SIAG CSE). School of CSE faculty serve in key roles in leading the group and preparing for the conference.

In December, SIAG CSE members elected Chow to a two-year term as the group’s vice chair. This election comes after Chow completed a term as the SIAG CSE program director. 

School of CSE Associate Professor Elizabeth Cherry has co-chaired the CSE25 organizing committee since the last conference in 2023. Later that year, SIAM members reelected Cherry to a second, three-year term as a council member at large

At Georgia Tech, Chow serves as the associate chair of the School of CSE. Cherry, who recently became the associate dean for graduate education of the College of Computing, continues as the director of CSE programs

“With our strong emphasis on developing and applying computational tools and techniques to solve real-world problems, researchers in the School of CSE are well positioned to serve as leaders in computational science and engineering both within Georgia Tech and in the broader professional community,” Cherry said. 

Georgia Tech’s School of CSE was first organized as a division in 2005, becoming one of the world’s first academic departments devoted to the discipline. The division reorganized as a school in 2010 after establishing the flagship CSE Ph.D. and M.S. programs, hiring nine faculty members, and attaining substantial research funding.

Ten School of CSE faculty members are presenting research at CSE25, representing one-third of the School’s faculty body. Of the 23 accepted papers written by Georgia Tech researchers, 15 originate from School of CSE authors.

The list of School of CSE researchers, paper titles, and abstracts includes:
Bayesian Optimal Design Accelerates Discovery of Material Properties from Bubble Dynamics
Postdoctoral Fellow Tianyi Chu, Joseph Beckett, Bachir Abeid, and Jonathan Estrada (University of Michigan), Assistant Professor Spencer Bryngelson
[Abstract]

Latent-EnSF: A Latent Ensemble Score Filter for High-Dimensional Data Assimilation with Sparse Observation Data
Ph.D. student Phillip Si, Assistant Professor Peng Chen
[Abstract]

A Goal-Oriented Quadratic Latent Dynamic Network Surrogate Model for Parameterized Systems
Yuhang Li, Stefan Henneking, Omar Ghattas (University of Texas at Austin), Assistant Professor Peng Chen
[Abstract]

Posterior Covariance Structures in Gaussian Processes
Yuanzhe Xi (Emory University), Difeng Cai (Southern Methodist University), Professor Edmond Chow
[Abstract]

Robust Digital Twin for Geological Carbon Storage
Professor Felix Herrmann, Ph.D. student Abhinav Gahlot, alumnus Rafael Orozco (Ph.D. CSE-CSE 2024), alumnus Ziyi (Francis) Yin (Ph.D. CSE-CSE 2024), and Ph.D. candidate Grant Bruer
[Abstract]

Industry-Scale Uncertainty-Aware Full Waveform Inference with Generative Models
Rafael Orozco, Ph.D. student Tuna Erdinc, alumnus Mathias Louboutin (Ph.D. CS-CSE 2020), and Professor Felix Herrmann
[Abstract]

Optimizing Coupled Systems: Insights from Co-Design Imaging and Optical Chemistry
Assistant Professor Raphaël Pestourie, Wenchao Ma and Steven Johnson (MIT), Lu Lu (Yale University), Zin Lin (Virginia Tech)
[Abstract]

Multifidelity Linear Regression for Scientific Machine Learning from Scarce Data
Assistant Professor Elizabeth Qian, Ph.D. student Dayoung Kang, Vignesh Sella, Anirban Chaudhuri and Anirban Chaudhuri (University of Texas at Austin)
[Abstract]

LyapInf: Data-Driven Estimation of Stability Guarantees for Nonlinear Dynamical Systems
Ph.D. candidate Tomoki Koike and Assistant Professor Elizabeth Qian
[Abstract]

The Information Geometric Regularization of the Euler Equation
Alumnus Ruijia Cao (B.S. CS 2024), Assistant Professor Florian Schäfer
[Abstract]

Maximum Likelihood Discretization of the Transport Equation
Ph.D. student Brook Eyob, Assistant Professor Florian Schäfer
[Abstract]

Intelligent Attractors for Singularly Perturbed Dynamical Systems
Daniel A. Serino (Los Alamos National Laboratory), Allen Alvarez Loya (University of Colorado Boulder), Joshua W. Burby, Ioannis G. Kevrekidis (Johns Hopkins University), Assistant Professor Qi Tang (Session Co-Organizer)
[Abstract]

Accurate Discretizations and Efficient AMG Solvers for Extremely Anisotropic Diffusion Via Hyperbolic Operators
Golo Wimmer, Ben Southworth, Xianzhu Tang (LANL), Assistant Professor Qi Tang 
[Abstract]

Randomized Linear Algebra for Problems in Graph Analytics
Professor Rich Vuduc
[Abstract]

Improving Spgemm Performance Through Reordering and Cluster-Wise Computation
Assistant Professor Helen Xu
[Abstract]

News Contact

Bryant Wine, Communications Officer
bryant.wine@cc.gatech.edu

Mar. 05, 2025
Headshot of Rob Butera.
Rob Butera in the lab.
Robert Butera receives the Georgia Tech ANAK award in 2019.
Rob Butera in a kayak white water rafting.

Celebrating the Remarkable Career of Robert Butera
Bill Dracos Appointed Interim Chief Research Operations Officer as Rob Butera Announces His Retirement 

It is with immense gratitude and admiration that we announce the retirement of Robert Butera, who has served Georgia Tech with the highest dedication and excellence. As the chief research operations officer (CROO), Butera has facilitated the Institute’s research activities, overseeing research integrity assurance, research administration, research operations/infrastructure, and research development. His leadership and vision have left an indelible mark on Georgia Tech's research enterprise.

Butera’s journey at Georgia Tech began long before his role as CROO. He received his undergraduate degree in electrical engineering from Georgia Tech in 1991. He joined the Institute’s faculty in 1999, after earning his Ph.D. from Rice University and spending several years as a postdoctoral researcher at the National Institutes of Health. Over the years, Butera has held numerous pivotal roles, including vice president for research development and operations, associate dean for research in the College of Engineering, and director of the Neural Engineering Center. Prior to joining Georgia Tech’s research leadership, Butera directed the interdisciplinary bioengineering graduate program, then co-founded the Grand Challenges Living Learning Community.

As a professor, Butera graduated 15 Ph.D. students and mentored over 100 undergraduates, for which he received Georgia Tech’s Senior Faculty Outstanding Undergraduate Research Mentor Award in 2016. He also mentored several postdocs and master’s students.

Butera’s accolades are numerous, including the prestigious Georgia Tech ANAK award and election as a Fellow to both the American Association for the Advancement of Science and the American Institute of Medical and Biological Engineering. He held significant leadership roles within the IEEE Engineering in Medicine and Biology Society. These honors reflect his impact on the field of biomedical engineering and his dedication to advancing scientific knowledge.

Beyond his professional achievements, Butera’s personal passions have also enriched the larger Georgia Tech community. His love for whitewater kayaking, which he discovered through Outdoor Recreation Georgia Tech (ORGT), led to a decade of volunteering as an instructor and trip leader. This commitment to adventure and leadership development has inspired many students and colleagues alike.

"Rob's unwavering commitment to excellence and his visionary leadership have been instrumental in advancing Georgia Tech's research mission. His contributions have not only elevated our institution but have also profoundly impacted the broader scientific community. We are deeply grateful for his service and wish him all the best in his well-deserved retirement,” said Tim Lieuwen, executive vice president for Research.

Andrés J. García, executive director of the Parker H. Petit Institute for Bioengineering and Bioscience, shared these heartfelt words: "Rob, the ultimate Yellow Jacket, has been a tireless champion to improve research, educational, and operational processes at Georgia Tech. He has had tremendous positive impact in Georgia Tech, the state, and the nation. We will miss his deep knowledge and expertise, exceptional problem solving, practical perspective, and genuine care for faculty, staff, and students, and we wish him continued success in his next chapter."

Lena Ting, McCamish Foundation Distinguished Chair in Biomedical Engineering in the Walter H. Coulter Department of Biomedical Engineering, said, “Rob’s heart has a huge ‘GT’ stamped on it: He has always been engaged in all aspects of Georgia Tech life. I’m always amazed to hear about his undergrad teaching and mentoring, kayaking with ORGT, and advising his fraternity. At the same time, he worked tirelessly to enhance interdisciplinary research and solve challenges affecting faculty research, all while conducting his own innovative research. Rob is a GT nexus, always in the know about what is going on around campus and – more importantly – how and why it got to be that way. He is a great friend and colleague who is always available for a beer, and I’ll miss him dearly.”

As we bid farewell to Rob, we also extend a warm welcome to Bill Dracos, who will serve as the interim chief research operations officer, effective immediately. Bill brings a wealth of experience from his role as Deputy Chief Operating Officer at the Georgia Tech Research Institute and his previous leadership positions at George Mason University, Emory University, and PricewaterhouseCoopers. We are confident Bill will continue to build on Rob's legacy of excellence and innovation.

Thank you, Rob, for your years of service, your unwavering commitment to Georgia Tech, and your inspiring leadership. We wish you all the best in your retirement and look forward to seeing the new adventures you will undoubtedly embark upon.

Georgia Tech is conducting a national search for the next Chief Research Operations Officer. Learn more about the open position. 

 

 

 

 

Mar. 03, 2025
Pictured are Sohan Choudhury of Flint, Garrett Smiley of Sora Schools, Sarah Hamer of RetailReady, and Bruno Geoly  of Lumindt.

Forbes 30 Under 30 list featured eight CREATE-X founders. Pictured are Sohan Choudhury of Flint, Garrett Smiley of Sora Schools, Sarah Hamer of RetailReady, and Bruno Geoly of Lumindt.

CREATE-X is celebrating the eight CREATE-X entrepreneurs included on the recent Forbes 30 Under 30 list. They include founders Sohan Choudhury of Flint, Garrett Smiley of Sora Schools, Sarah Hamer of RetailReady, Bruno Geoly and Mia Rath of Lumindt, Rishabh Kewalramani of BackBar, Safir Monroe of UnDelay, and Tamara Zubatiy of Barometer

Forbes 30 Under 30 is a yearly list of notable young people in art, entertainment, healthcare, science, and more. CREATE-X has had founders on this list 11 times since 2017. Read about how some of the 2025 honorees got their start — and their advice for other aspiring entrepreneurs.

 

Sohan Choudhury: Flint

The Beginning

“I decided to start Flint because I was passionate about education as a space, and I felt that there's a lot more that could be done with AI in education. When we started the company in May 2023, the perspective of a lot of schools and teachers on AI was very negative because they were looking at how students were using it to cheat. As technologists, my co-founder and I asked, ‘Is there something more we can do to change this narrative and perspective?’ We started building tools for teachers and students and partnering with schools.” 

The CREATE-X Experience

CREATE-X gave me the first avenue to work on my own thing. When I was a first-year or sophomore in college, I didn't know that was possible. I thought once I graduate I'll maybe get an engineering job and just do that. But CREATE-X changed that story for me by giving me another path. As I went down that path with my first company, the advisors we had through CREATE-X were incredibly helpful to us.”

The Outlook

“Day to day, a lot of the work we do is pretty unglamorous. We’re dealing with bugs that our customers are facing, or we’re cold emailing people. It's easy to get lost in the weeds. The Forbes announcement was a great way for us to reflect on what we've done so far. It's such a team effort, so it was validating to get recognition on a broader level for the work we're doing.”

Advice for Success

“If you can code or are interested in coding, pull on that thread. If you can build your own prototypes, which is becoming easy to do nowadays with AI, it will help you get further with your ideas. The second piece of advice is to take your idea and try to convince someone to pay for it. Even if you have a tool that will save your peers time with studying, build something basic for it, but then ask them to pay you five bucks. People speak with their money. There were times at Flint where we had a lot of positive feedback, and then we asked people to pay, and all of the constructive feedback came out.”

 

Garrett Smiley: Sora Schools

The Beginning

“I was a military brat, so I moved around to a lot of different schools and experienced a bunch of different styles of learning. I went to school in the early 2010s, right when laptops were entering the classroom. We had YouTube, Khan Academy, Coursera, and all these things hit the mainstream. Because of my background, education was a very active question in my life. I saw how these tools completely supercharged my learning and changed the relationship between student and teacher and the dynamics of the classroom.”

The CREATE-X Experience

“CREATE-X asked us to think about large systemic problems we were passionate about. That pushed me to think seriously about how I could help solve a problem in this space. It was helpful to put into practice many of the startup lessons that I'd been studying forever, and it was great to have a community of founders before anyone believed in us.”

The Outlook

“I'm inspired by Forbes’ emphasis on education, so to be recognized in that context was extra special. We’re in 46 states and 16 countries, so it's great to see the breadth that Sora has accomplished. We're bringing this style of education to different communities that, in many cases, have never considered something like this before. Seeing our students accepted into places like Harvard, Georgia Tech, and other elite institutions shows families that you can have a transformative education like Sora and still go to those schools if it makes sense.“

Advice for Success

Use your free time in school to try the things you're thinking about. Sora was an idea I thought I would circle back to when I was 30 or 40 and had money and credibility. But I was shocked by how open people were to listening to a young person with a few resonating ideas. There's no qualification or age requirement to provide value and improve people's lives.”

 

Sarah Hamer: RetailReady

The Beginning

“I met my co-founder, Elle, while we were working at a company called Stord, which is also an Atlanta-based startup. Elle and I were put on a project going to a warehouse every week for six months. We saw some gaps in supply chain software and decided to solve them since nothing was on the market. So I applied to Y Combinator and got in, and now we’re here.”

The CREATE-X Experience

“CREATE-X was my first foray into starting a business. It gave me confidence, and I learned a lot of lessons with my first business. I think I would've made a lot of mistakes starting a business now if I hadn't had that experience in college. For example, knowing how important user interviews are, how you’ll probably fail here and there, start small, then scale — the principles you take for granted that CREATE-X taught.”

The Outlook

“I started at Microsoft right out of Georgia Tech and was there for a year and a half. It was a very stable, well-paying job. I followed my gut to leave and join a startup called Stord and then followed it again to leave and start RetailReady. Quitting your stable day-to-day job takes a lot, and I’m proud I took the chance. We’ve grown fast, and it’s a huge honor to be included on the Forbes 30 Under 30 list in the first year of being in business. We’re really happy about it.” 

Advice for Success

“When you can, take the chance and do it. Even if you’re not sure, always believe you’ll win. A lot of it is mental fitness, believing what your gut is telling you. There will be times when you’ll say, ‘This probably isn’t the right move to make.’ Listen to that.”

 

Bruno Geoly: Lumindt

The Beginning

“An inflection point for me was the summer of 2021. I was working at SpaceX, and at the same time, my friends and I had started this Web3 crypto company dealing with NFTs. And I was like, I can mix these two things together to do something cool, something important. The idea of what Lumindt is wasn't even a sparkle in my eye at that time. But I knew I wanted something of my own, doing these two things I enjoy — entrepreneurship and high-level engineering. And that's what I did.”

The CREATE-X Experience

“CREATE X was a way for me and my co-founder to stay accountable for our work. When you have an idea you want to turn into a business, it’s hard to stay on yourself to do that. CREATE-X was a good way for us to always have a thing to go to and ideate what we’re working on. And there was a little bit of competition. You see all of these other people making progress, and it’s good inspiration and a motivator to continue working.”

The Outlook

“My co-founder and I were very appreciative of being included on the Forbes 30 Under 30 list. Looking back on what I wanted to do in college, I just loved building stuff. And to have this small team of people, and we’re able to build what we want, and there's cohesion and camaraderie, I'm very happy with that. It's fun to go to work every day and work with the people I do. And not only that, we now have a business that impacts the world.”

Advice for Success

“If you want to be an entrepreneur, that's a skill set like anything else. If you want to get better at karate, you practice karate. If you want to be a better entrepreneur, you have to practice entrepreneurship. You'll learn a lot about yourself — what problems you like to solve and what problems you need help solving.”

 

Want to Build Your Own Startup?

Georgia Tech students, faculty, researchers, and alumni interested in developing their own startups are encouraged to apply to CREATE-X's Startup Launch, which provides $5,000 in optional seed funding and $150,000 in in-kind services, mentorship, entrepreneurial workshops, networking events, and resources to help build and scale startups. The program culminates in Demo Day, where teams present their startups to potential investors. The deadline to apply for Startup Launch is Monday, March 17. Spots are limited. Apply now.

 

News Contact

Article by Alyson Key

CREATE-X Contact:

Breanna Durham 
Marketing Strategist
 

Mar. 04, 2025
Hong Yeo holding a white pacifier under development at Georgia Tech

Hong Yeo, associate professor and Harris Saunders Jr. Endowed Professor in the George W. Woodruff School of Mechanical Engineering, came up with the pacifier idea at a pediatric technology conference.

Georgia Tech researchers have developed a pacifier that can constantly monitor a baby’s electrolyte levels in real time, eliminating the need for repeated invasive blood draws.

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Feb. 26, 2025
Tarek Rakha on the Georgia Tech campus holding a drone in his arms.

Tarek Rakha on the Georgia Tech campus holding a drone in his arms.

Lamarr.AI leverages AI and drones to autonomously diagnose building energy inefficiencies, reducing carbon emissions. The startup, a collaboration between Georgia Tech, MIT, and Syracuse University, raised $1.1 million in pre-seed funding. Their technology provides detailed diagnostics of building exteriors, helping owners save on energy costs and improve indoor air quality.

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Feb. 27, 2025
Four researchers standing in a lab with a large roll of fiberglass insulation and a wooden rack holding small bags of hemp fiber-based insulation materials. (Photo: Candler Hobbs)

From left, Kelly Farmer, Akanksha Menon, Joe Bozeman, and Arjun Ramshankar with a package of traditional fiberglass insulation and a rack holding samples of potential hemp-based insulation materials created by graduate student Elyssa Ferguson in Menon's lab. The team has published an analysis outlining a path toward a viable hemp-based building insulation market in the U.S. Hemp insulation can be used in place of traditional fiberglass batt insulation and reduce the carbon footprint of buildings, but hemp materials currently cost twice as much. (Photo: Candler Hobbs)

It’s a fairly niche product now, but a new study from Georgia Tech engineers suggests insulation made from hemp fibers could be a viable industry in the U.S., creating jobs, a manufacturing base, and greener homes and buildings at the same time.

Making the switch could slash the impact of one of the biggest sources of greenhouse gas emissions: Buildings account for roughly 1/5 of emissions globally. By some estimates, using hemp-based products would reduce the environmental impact of insulation by 90% or more. 

The Georgia Tech researchers’ work, reported this month in the Journal of Cleaner Production, is one of the first studies to evaluate the potential for scaling up U.S. production and availability of hemp-based insulation products.

Read about their findings on the College of Engineering website.

News Contact

Joshua Stewart
College of Engineering

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