People Behind the Science Podcast Stories from Scientists about Science, Life, Research, and Science Careers

Dr. Ana Luisa Trejos is an Associate Professor of Electrical and Computer Engineering as well as Biomedical Engineering at Western University in Canada. She is also an Associate Scientist at the Lawson Health Research Institute. Ana Luisa’s research combines mechanical, electrical, computer, and software engineering to develop smart machines that can perceive what is happening in the environment and react intelligently. In particular, she is designing wearable mechatronic technologies that can help people recover from mobility problems due to a musculoskeletal injury or a movement disorder like Parkinson’s disease. When she’s not at work, Ana Luisa enjoys hanging out with her family, reading, putting together jigsaw puzzles, hiking, swimming, and running. She has also been having fun renovating her house, and she has recently been working on completely remodeling one of their bathrooms. Ana Luisa was awarded her B.Sc. degree in mechanical engineering from the University of Costa Rica and her M.A.Sc. in mechanical engineering from the University of British Columbia. She worked as an Applications Engineer for Progressive Moulded Products in Ontario from 2000-2003. She then joined the team at Canadian Surgical Technologies & Advanced Robotics at Western University as a research engineer. Ana Luisa later attended graduate school at Western University where she was awarded her Ph.D. degree in electrical and computer engineering in 2012. Ana Luisa has been awarded the IEEE London Section Outstanding Women in Engineering Award and the For Inspiration and Recognition of Science and Technology (FIRST) Canada District Volunteer Appreciation Award. In our interview, Ana Luisa shares more about her life and research.

Dr. Lawrence Uricchio is Assistant Professor and the Youniss Family Professor of Innovation in the Department of Biology at Tufts University. Research in Lawrence’s lab focuses on modeling how evolutionary and ecological processes work. They use a combination of experimental and observational approaches to generate data, and then they develop mathematical models to explain the observations they make in nature. Outside of work, Lawrence is a devoted family man who loves spending time with his nine-year-old son, often shuttling him between soccer practices and games. He also enjoys being outdoors and running, a passion that has stayed with him since his days as a middle-distance runner in high school and college. He completed his bachelor’s degree in physics at Carleton College, received master’s degrees in biophysical sciences and computer science from the University of Chicago, and was awarded his PhD in bioinformatics from the University of California, San Francisco. While at UCSF, he was named a Discovery Fellow. Afterwards, Lawrence conducted postdoctoral research at Stanford University under a Center for Computational, Evolutionary and Human Genomics (CEHG) Fellowship and an NIH Institutional Research and Academic Career Development Award (IRACDA). He also conducted postdoctoral research at the University of California, Berkeley before joining the faculty at Tufts in 2021. In this interview, Lawrence shares more about his life and science.

Dr. R. Douglas Fields is Chief of the Nervous System Development and Plasticity Section at the National Institutes of Health (NIH) and Adjunct Professor in the Neuroscience and Cognitive Science Program at the University of Maryland, College Park. In addition, Doug is the author of numerous books and magazine articles about the brain, including the recently released book Electric Brain: How the New Science of Brainwaves Reads Minds, Tells Us How We Learn, and Helps Us Change for the Better. Doug studies how the brain develops and the mechanisms involved in changes to the brain’s structure and function (plasticity). He is particularly interested in how experience regulates development and plasticity in the brain, as well as the mechanisms at a cellular level that are involved in learning. When he’s not doing research or writing about science, Doug enjoys rock climbing, mountain climbing, building acoustic guitars, and making his own beer and wine. He received his B.A. in biology from the University of California, Berkeley, his M.A. degree in marine biology from San Jose State University, and his Ph.D. degree in marine biology from the University of California, San Diego, working jointly in the Medical School and Scripps Institution of Oceanography. Afterwards, Doug conducted postdoctoral research at Stanford University, Yale University, and the NIH before starting his research laboratory at the NIH in 1994. Doug is an elected Fellow of the American Association for the Advancement of Science, and he is the Founder and Editor-In-Chief of the scientific journal Neuron Glia Biology. In our interview, Doug tells us more about his life and science.

Dr. Talithia Williams is an Associate Professor of Mathematics and Associate Dean for Research and Experiential Learning at Harvey Mudd College. In addition, Talithia is Host of the PBS Series NOVA Wonders and author of the book Power in Numbers: The Rebel Women of Mathematics. Talithia is a mathematician who does disease modeling. She has been working with the World Health Organization to create models of the rates at which groups of people develop cataracts over time. Left untreated, cataracts can cause partial or complete blindness. In the U.S., cataract surgery is quick and accessible, but this is not the case in other countries. Knowing where there is the greatest need for treatment is important for the World Health Organization as they make decisions on where to send ophthalmologists to perform surgeries. In addition to being a mathematician and researcher, Talithia is a mother of three boys, a wife of 15 years, a TV show host, an author, and a person of faith. She enjoys spending time with her family, traveling, being involved in her church, volunteering, and helping people in her community. She received a B.S. in mathematics from Spelman College, and while an undergraduate student, Talithia conducted research at the NASA Jet Propulsion Laboratory. After graduating, Talithia went on to earn a master’s degree in mathematics from Howard University, a master’s degree in statistics from Rice University, and a PhD in statistics from Rice University. Prior to joining the faculty at Harvey Mudd College, Talithia conducted research at the NASA Jet Propulsion Laboratory, the NASA Johnson Space Center, and the National Security Agency. Talithia has received numerous honors and awards throughout her career, including the Mathematical Association of America’s Henry L. Alder Award for Distinguished Teaching by a Beginning College or University Mathematics Faculty Member and The Claremont Colleges Diversity Mentor Award. In our interview Talithia shares more about her life and work.

Dr. Tyler Susko is Founder and Chief Technology Officer of Cadense, Inc., a company that creates groundbreaking adaptive solutions. He is also a Teaching Professor and Undergraduate Vice Chair in the Department of Mechanical Engineering at the University of California, Santa Barbara. And he is Principal Engineer and Owner of Susko Engineering, LLC. Tyler is dedicated to creating useful things that solve real-world problems for people. He and his team have designed an innovative shoe where portions of the bottom surface alternate between providing high-friction grip to low-friction slide to help people move their foot forward when walking. As an entrepreneur and a father of three, Tyler keeps very busy. He and his family enjoy hanging out, rock climbing, skiing, and engaging in robotics club activities together. Tyler has learned to blend his work life with his family life, so his kids sometimes come with him to the office, and sometimes he brings his work home. Tyler received his bachelor’s degree in Integrated Business and Engineering and his master’s degree in mechanical engineering from Lehigh University. Afterwards, he worked as a design engineer for Ingersoll Rand for two years before returning to graduate school. He was awarded his PhD in mechanical engineering from MIT. After completing his PhD, Tyler joined the faculty at UC Santa Barbara and launched his engineering consulting company. He co-founded Cadense in 2021. Cadence has been recognized with an Innovation Award from the Pacific Coast Business Times, and it was named a finalist for Fast Company’s 2025 Innovation by Design Award. In our interview, Tyler shares more about his life and his career.

Dr. David Sedlak is the Plato Malozemoff Professor in the Department of Civil and Environmental Engineering, Co-Director of the Berkeley Water Center, Deputy Director of the National Science Foundation Engineering Research Center for Reinventing the Nation's Urban Water Infrastructure, and Director of the Institute for Environmental Science and Engineering at the University of California, Berkeley. In addition, he is author of the book Water 4.0: The Past, Present, and Future of the World's Most Vital Resource. David is working to create technologies that will allow future generations to have access to adequate amounts of clean, safe water. When David isn’t working, he enjoys long-distance running. He often runs along the many trails in the Berkeley area, and he participates in an annual local trails marathon. David earned his Bachelor’s degree in environmental science from Cornell University. After college, he worked as a Staff Scientist at Environ Corporation in Princeton, New Jersey. David then attended graduate school at the University of Wisconsin, Madison where he was awarded his Ph.D. in water chemistry. Prior to joining the faculty at UC, Berkeley, David conducted postdoctoral research at the Swiss Federal Institute for Environmental Science and Technology in Dübendorf, Switzerland. Throughout his career, David has received numerous awards and honors, including a National Science Foundation CAREER Development Award, the Paul L. Busch Award for Innovation in Applied Water Quality Research, a Fulbright Senior Scholar Award, a Fulbright Alumni Initiative Award, the U.S. National Academy of Engineering Gilbreth Lecture Award, and the Athalie Richardson Irvine Clarke Prize for Excellence in Water Research. He has also been named an Elected Member of the U.S. National Academy of Engineering, as well as a Rydell Distinguished Visiting Professor at Gustavus Adolphus College and the Francqui Foundation Chair, Ghent University. In our interview, David shares more about his life and research.

Dr. Carla Finkielstein is an Associate Professor of Biological Sciences within the Biocomplexity Institute of Virginia Tech. She is also Director of the Integrated Cellular Response Laboratory at Virginia Tech, a Member of the Executive Committee of the Susan G. Komen Blue Ridge Board, and past member of the Board of Directors of the Virginia Breast Cancer Foundation. Carla is interested in understanding the mechanisms cells use to measure time to regulate cell division. She hypothesizes that cancer may occur when the clocks within cells signal to the cell to divide too frequently. Carla’s goal is to understand how this process occurs so that we can fix the issue, detect the problem early to provide treatment, or prevent it from happening. Outside of science, Carla’s favorite hobby is cooking. She loves making new and creative dishes that bring together different colors, flavors, and taste profiles. Cooking is relaxing for her, and it’s fun to share dishes she creates with her friends and family. In addition, Carla enjoys reading a wide variety of books about history. Carla received her B.S. and Ph.D. both in Molecular Biology from the University of Buenos Aires in Argentina. Afterwards, she worked as a Research Associate at the Howard Hughes Medical Institute at the University of Colorado Health Sciences Center. Carla then conducted further postdoctoral research at the University of Colorado Health Sciences Center before joining the faculty at Virginia Tech. Carla has been recognized for her research accomplishments with the L. Chely Award for Best PhD Thesis, a Howard Hughes Institute Fellowship for Research, an American Heart Association Postdoctoral Fellowship, the Karin Noss Scholarship for Research Advocacy in Breast Cancer, the Susan G. Komen Award for Junior Investigators, and a National Science Foundation CAREER Award. In our interview Carla shared more about her life and science.

Dr. Donald L. Smith is the Distinguished James McGill Professor in the Department of Plant Science at McGill University. He is also CEO of BioFuelNet Canada, Head of Biomass Canada, and Head of the McGill Network for Innovation on Biofuels and Bioproduct. Don’s research examines relationships between plants and the microbes that live in association with them, particularly in the roots. He and his collaborators have discovered evidence of signaling between plants and microbes, including microbial signaling that causes plants to grow better. They also uncovered that plants respond much more strongly to signals in the presence of drought or cold stress. Now they are expanding their investigations to examine a wide range of plant-associated microbes to better understand the signals they send and how they may impact plant health and resilience. Outside of the lab, Don loves to unwind and recharge by going on walks and reading great novels. He is also an avid traveler who enjoys blending work with trips to new places whenever possible, turning conferences and collaborations into opportunities to explore the world. He received his Bachelor’s and Master’s degrees from Acadia University and his PhD from the University of Guelph. Afterwards, he worked as an Natural Sciences and Engineering Research Council of Canada (NSERC) Postdoctoral Fellow at Agriculture Canada before joining the faculty at McGill University in 1985. Over the course of his career, Don has received many awards and honors, including, the Clean50 award for contributions to sustainable development and clean capitalism in Canada and the Queen Elizabeth II Diamond Jubilee Medal, in this case for significant contributions to intelligent agriculture . He is also a Fellow of the Canadian Society of Agronomy, and he served as a Member of the Canada-US think tank on climate change and agriculture in North Eastern North America. In our interview, Don shares more about his life and science.

Dr. Andrew Friedman is an Assistant Research Scientist at the Center for Astrophysics and Space Sciences at the University of California, San Diego (UCSD). He is also a Research Affiliate at the Massachusetts Institute of Technology (MIT). As an astrophysicist and cosmologist, Andy is studying the history of the universe from the Big Bang through present day. Andy and his colleagues use the universe as a laboratory to learn more about how things work. Specifically, Andy uses observations of astronomical objects in other galaxies to learn about fundamental physics and quantum mechanics. When he’s not at work, you can find Andy hanging out with his wife and dog, or enjoying good food and good conversation with friends and family. Andy received his bachelor’s degree in physics and astrophysics from the University of California, Berkeley and his master’s and PhD degrees in Astronomy and Astrophysics from Harvard University. Afterwards, Andy worked as a National Science Foundation Postdoctoral Fellow at MIT, a National Science Foundation funded Research Associate at MIT, and a Visiting Research Scientist at the MIT Center for Theoretical Physics. He joined the Center for Astrophysics and Space Sciences at UCSD in 2017. In our interview, Andy tells us more about his life and science.

Dr. Kristen Lani Rasmussen is Assistant Professor in the Department of Atmospheric Science at Colorado State University. Research in Kristen’s lab focuses on studying extreme events, particularly weather events such as heavy rainfall, thunderstorms, hail storms, and other events that have a big impact on humans and society. She is interested in examining these extreme event systems in the context of our current climate and how they may change in the future. In addition to spending quality time with her fantastic family, Kristen enjoys playing jazz trumpet. She has played jazz and bluegrass music with various bands in Colorado. Kristen received her bachelor’s degree in meteorology and mathematics as well as music from the University of Miami. She then attended the University of Washington where she was awarded her M.S. and Ph.D. degrees in Atmospheric Sciences. Afterwards, Kristen conducted postdoctoral research at the National Center for Atmospheric Research before joining the faculty at Colorado State University. She has received a number of awards and honors in her career, including the Peter B. Wagner Memorial Award for Women in Atmospheric Science from the Desert Research Institute, the College of the Environment Outstanding Community Impact Award from the University of Washington, and the Very Early Career Award from the American Meteorological Society’s Mesoscale Processes Conference. In addition, she was recently awarded the Graduate Mentoring and Advising Award from Colorado State University as well as the George T. Abell Outstanding Early Career Faculty Award from the College of Engineering at Colorado State University. In our interview, Kristen tells us more about her life and science.

Dr. Dave Jackson is Professor of Plant Genetics at Cold Spring Harbor Laboratory. Dave is driven to understand what makes plants grow and why various types of plants look different from each other. His research examines how genes control plant shapes, including investigations into the role of genetics and stem cells. The long-term goal is to turn this foundational knowledge into tools that can improve agriculture. Outside the lab, Dave works to keep a healthy balance by getting outdoors to go hiking, backpacking, and camping. He also dedicates time to art and music, which are abundant in New York City. Dave loves supporting emerging artists and musicians, particularly bio-art and jazz music. Artistic creativity is a lot like the creative process in science. He’s especially excited by how artists can translate scientific ideas into forms that feel more accessible and inviting to the public. He obtained his bachelor’s degree in biotechnology from the University of Leeds and was awarded his PhD from the John Innes Institute. Afterwards, Dave conducted research as a NATO and USDA Postdoctoral Fellow at the Plant Gene Expression Center in Berkeley, CA, before joining the faculty at Cold Spring Harbor Laboratory in 1997. He was elected as a Fellow of the American Association for the Advancement of Science (AAAS) in 2018. In our interview, Dave shares more about his life and science.

Dr. Joyce Ohm is an Associate Professor of Oncology in the Department of Cancer Genetics and Genomics at the Roswell Park Comprehensive Cancer Center. Joyce’s research examines the epigenomics involved in development and disease, particularly in cancer. Epigenomics is the study of how your cells package and store the information in your genome. Individual cells within your body package the genome differently to be able to most efficiently use the genes they need. This is important during development, but there are also problems with the epigenome in cancer. In her free time, Joyce enjoys cycling, as well as hiking and kayaking with her two adorable dogs. She was awarded her PhD in Cancer Biology from Vanderbilt University. Afterwards, Joyce conducted postdoctoral research in oncology at Johns Hopkins University School of Medicine. Prior to joining the faculty at Roswell Park, she served on the faculty at the University of North Dakota School of Medicine and Health Sciences. In our interview Joyce tells us more about her life and science.

Dr. Bryan Cassone is a Professor and Chair in the Department of Biology at Brandon University in Canada. He is a molecular entomologist. Drawn to the sheer variety of fascinating questions insects can help answer, he is more of a generalist than many scientists in his field. His work spans agricultural and medical pests, plus curiosity-driven projects like studying waxworms (plastic-eating caterpillars). Outside the lab, Bryan is a big football fan. After playing football and wrestling in college, Bryan now loves watching both college and NFL games. He also enjoys staying active with swimming and weight training, and he loves traveling to new places. Bryan received his B.Sc. in biology, specializing in environmental science, from the University of Western Ontario, his M.Sc. in integrative biology from the University of Guelph, and his Ph.D. in biological sciences from the University of Notre Dame. After completing his PhD, Bryan conducted postdoctoral research at the Corn, Soybean, & Soft Wheat Unit at the United States Department of Agriculture. Next, he was a CAPS Herta Camera Gross Postdoctoral Fellow in the Department of Plant Pathology at Ohio State University. He joined the faculty at Brandon University in 2015. In this interview, Bryan shares more about his life and science.

Dr. Natalia Vergara is an Assistant Professor of Ophthalmology at the Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine on the Anschutz Medical Campus. Natalia uses stem cells to understand how the retina forms during development and how it degenerates during disease with the goal of developing therapies to help patients who suffer from vision loss. For her research, Natalia uses a type of stem cells called induced pluripotent stem cells which can be reprogrammed so they can form any type of cell in the body. With these cells, they can make human retina tissue using any individual’s cells in a petri dish in the lab to better understand diseases, test treatments, and potentially prepare retinas for transplant. In her free time, Natalia loves hanging out, cooking, and enjoying food with friends and family, including her husband and two young kids. Natalia is also an avid traveler, and she delights in the thrill of discovery that comes along with exploring new places. Natalia received her B.S. in biochemistry from the National University of the Litoral in Argentina. She worked as an instructor and research intern at the National University of Entre Ríos for about three years before beginning graduate school. Natalia was awarded her PhD in retinal regenerative biology from Miami University in Ohio. Afterwards, she conducted postdoctoral research at the Wilmer Eye Institute of Johns Hopkins School of Medicine. She served as a Research Associate Faculty member at Johns Hopkins School of Medicine for about two years before joining the faculty at the University of Colorado. Natalia has received awards for research and for mentoring, including the Ruben Adler Research Award from the Wilmer Eye Institute at Johns Hopkins University School of Medicine in 2012, and she was selected as an Emerging Vision Scientist to participate in the Third Annual EVS day on Capitol Hill by the National Alliance for Eye and Vision Research in 2017. In our interview, Natalia tells us more about her life and science.

Dr. Randy Blakely is a Professor of Biomedical Science at Florida Atlantic University and Executive Director of the Florida Atlantic University Brain Institute. Randy is examining how neurons control neurotransmitter signaling, as well as how medicinal drugs and drugs of abuse impact neurotransmitters. He is interested in how normal neurotransmitter regulation and changes in neurotransmission due to drugs ultimately impact behavior. Randy lives in beautiful South Florida near the Everglades, and he likes to spend is free time enjoying nature and observing the local wildlife. While commuting between campuses, Randy listens to a variety of audiobooks, and he is also a big fan of Americana and folk music. He received his B.A. in Philosophy from Emory University and his Ph.D. in Neuroscience from the Johns Hopkins School of Medicine. He next conducted postdoctoral research at the Yale/Howard Hughes Medical Institute Center for Molecular Neuroscience. Randy was an investigator and faculty member at Emory University and Vanderbilt University before accepting his current position at Florida Atlantic University. Randy is the recipient of numerous awards and honors for his research and mentorship. He was awarded the Daniel Efron Award from the American College of Neuropsychopharmacology, two Distinguished Investigator Awards from the Brain and Behavioral Research Foundation, a MERIT Award from the National Institute of Mental Health, a Zenith Award from the Alzheimer’s Association, the Delores C. Shockley Partnership Award in recognition of minority trainee mentorship, as well as the Astellas Award in Translational Pharmacology and the Julius Axelrod Award both from the American Society for Pharmacology and Experimental Therapeutics. In addition, he is a Fellow of the American Academy for the Advancement of Science. Randy joins us in this episode to talk more about his life and science.