During the Catalysts for Change weekend experience, we offer our participants a chance to hear from an established, successful woman currently in a STEM field during their lunch. Our speakers typically talk about their journeys into their respective careers and possible research with participants.
2025 Speakers
Dr. Eden Tesfu, PhD and Dr. Megha Gupta, MD
![](https://sites.wustl.edu/c4change/files/2025/01/tesfu-1-683x1024.jpeg)
Dr. Tesfu currently serves as a North America Structural Elucidation and Residue Analytics Lead at Bayer Crop Sciences based in Chesterfield, MO. In this position, she leads teams of scientists focused on generating trace-level pesticide residue analytical data for risk assessment of sustainable active ingredient development for the company’s crop protection products. Dr. Tesfu is a native of Eritrea and has been a St. Louis resident since 2001. She has worked for various companies within the St. Louis Metropolitan areas including Pfizer (Post-doctoral Researcher), EAG Labs (Scientist and Lab Manager), Monsanto (Regulatory Scientist; Compliance Manager) and Bayer.
![](https://sites.wustl.edu/c4change/files/2025/01/gmegha.jpg)
Dr. Gupta is currently a Neurology Resident Physician at Barnes Jewish Hospital. She earned her medical degree at Duke University and her bachelor’s degree in Neuroscience from the University of Southern California. As a neurologist, Dr. Gupta specializes in acute and chronic management of neurologic disorders. She has a particular interest in palliative care and critical care. She was also recently selected as the Rising Wellness Chief for her residency program and will serve her new position as Wellness Chief during the 2025-2026 year.
![](https://sites.wustl.edu/c4change/files/2019/10/speaker_day1.jpg)
![](https://sites.wustl.edu/c4change/files/2019/10/speaker_day2.jpg)
Previous Speakers:
Dr. Ishana Shetty
2024 – OBGYN, CFM Doctoral Fellow at Washington University in St. Louis
Dr. Malika Jeffries-EL
2024 – Chemistry Professor at Boston University – Organic Semiconductor Research drjeffriesel.com
Dr. Denise Leonard
2023 – Science Education/Primate Research
Dr. Julia Burd & Dr. Cassandra Trammel
2023 – Washington University OB/GYN Doctoral Fellows – Maternal Fetal Medicine Research
Dr. Mary S. Ruppert-Stroescu
2022 – Associate Professor of Fashion Design, Washington University in St. Louis – Biomedical Textiles
Dr. Crickette Sanz
2022 – Professor of Biological Anthropology at Washington University in St. Louis – Behavioral Diversity in Primates
Nicole Adewale
2019 – Principal at ABNA
Dr. Julie Margenthaler
2019 – Surgeon
Hannah Longworth-Mills
2018 – Aerospace Engineer (Boeing)
Sheyna Gifford
2018 – Doctor in Mars Simulation, Physician, Scientist in Residence at St. Louis Science Center
Laura Lagomarsino
2017 – Post-Doc Biological Sciences
Jen May
2017 – Pediatric Resident
Vicki Ly
2016 – Cosmetics Formulation Chemist
Megan Traore
2016 – Associate Senior Scientist at Sigma Aldrich Fine Chemical
Lisa Campbell
2015 – Forensic Scientist
Rosie Shanley
2015 – Coder
Natalie LaFronzo
2014 – Chemist
Siri Vikan
2014 – Airport Engineer
Noha Salama
2013 – Pharmacist
Sharon Deem
2013 – Veterinary Epidemiologist
Cindy Buhse
2012 – FDA
Sue Mueller
2012 – Civil Engineer