Stanford Doerr School of Sustainability
Showing 61-80 of 113 Results
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Josheena Naggea
Postdoctoral Scholar, Earth System Science
Current Research and Scholarly InterestsJosheena's community-engaged research focuses on small-scale fisheries, disaster impacts and recovery, marine protected area management, and the valorization of natural and cultural heritage in ocean governance. She has a keen interest in understanding people-ocean connections and how that influences pro-ecological behavior and local environmental stewardship.
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Alireza Namayandeh
Postdoctoral Scholar, Earth System Science
Current Research and Scholarly InterestsAlireza Namayandeh’s research focuses on the formation, transformation, and environmental impacts of metal-bearing nanoparticles in soil, water, and air, with a particular emphasis on their role in wildfire-generated pollution. His work investigates how wildfires contribute to the release and transport of toxic metal nanoparticles, assessing their chemical and physical properties and their implications for human health and ecosystem contamination.
His current research, supported by the NSF Earth Science Postdoctoral Fellowship, explores the mechanisms by which biomass burning generates toxic airborne nanoparticles and how soil mineralogy influences their formation. By combining laboratory experiments, synchrotron-based spectroscopy, electron microscopy, and field studies, he aims to better understand the pathways of metal mobilization during wildfires. He is also leading efforts to analyze ash and soil samples from recent wildfires in California, including the Eaton and Palisade fires in Los Angeles, to assess the risks associated with airborne metal nanoparticles.
Beyond wildfire-driven pollution, he is interested in the fundamental geochemistry of nanoparticle formation and transport. His previous work on precursor clusters of iron oxy-hydroxides provided new insights into the formation of metal-bearing nanoparticles and their role in controlling contaminant mobility in the environment. He continues to explore how ultrafine particles interact with toxic metals, organic matter, and microbial communities in both terrestrial and atmospheric systems.
His broader scholarly interests include wildfire geochemistry, atmospheric particulate matter, environmental mineralogy, and the intersection of environmental geochemistry and public health. His goal is to develop a deeper understanding of how natural and anthropogenic processes influence the formation and dispersion of hazardous nanoparticles, ultimately contributing to improved air quality standards, risk assessment models, and environmental policies in wildfire-prone regions. -
Mark Nikolic
Postdoctoral Scholar, Earth and Planetary Sciences
BioI study large scale processes of evolution through earth history using the fossil record. In doing so, I make use of computational and phylogenetic approaches along with large datasets. I also lead the History of Life and Biodiversity summer internship through the Stanford Young Investigators program. Aside from fossils, I'm also a big fan of riding my bike and disco music.
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Marcus Nobrega Gomes Jr
Postdoctoral Scholar, Earth System Science
Current Research and Scholarly InterestsBy recreating high-resolution flood maps for the last 50 years in California, my research aims to cross-correlate flood hazard maps with medical records to investigate whether a causal relation exists.
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Ryan OConnor
Postdoctoral Scholar, Environmental Social Sciences
BioRyan O’Connor is an Environmental Social Scientist and current Postdoctoral Scholar in the Environmental Social Sciences Department at Stanford University. Ryan’s research focuses broadly on understanding the Human Dimensions of Environmental Governance and how human societies interact with, learn about, and manage social-ecological systems. His research employs an innovative blend of quantitative and qualitative social-ecological methods to elevate and highlight community voices and local ecological knowledge in conservation and to investigate how communities learn about and act upon convergence crises of climate change, biodiversity loss, and social-ecological resilience. By understanding how a person's relationship to the nature-rich world, personal history with nature, and social context shape individual perceptions of the environment management, Ryan seeks to inform the co-production of sustainable governance programs. Ryan also teaches courses on research methods, human-nature interaction, the history of the oceans, and environmental governance at Stanford and has supervised undergraduates on projects ranging from computer vision machine learning models for marine mammal monitoring to expert interviews of marine protected area officials. Ryan has also been an Ethics in Society Fellow with the McCoy Family Center for Ethics in Society at Stanford. Learn more at https://ryanoconnorresearch.com
Prior to his work at Stanford, Ryan served as an officer in the US Navy working on international logistics policy research and development. Ryan most recently worked as an environmental policy consultant and geospatial project manager for AECOM Technical Services, helping to administer the National Flood Insurance Program, leading multi-hazard mapping, policy analysis, and legislative affairs efforts in support of disaster and climate resilience across the United States.
Ryan earned his Bachelor's Degree in Environmental Science from the University of Virginia in 2017. -
Carolina Olguin Jacobson
Postdoctoral Scholar, Oceans
BioMy research focuses on socio-ecological systems within fishery cooperatives in Baja California, Mexico, exploring their resilience and adaptation strategies to climate change and COVID-19 impacts through oceanographic and ecological monitoring. Working with marine protected areas and climate refugia areas.
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Lamprini Papargyri
Postdoctoral Scholar, Earth System Science
BioLamprini Papargyri is a postdoctoral scholar at Stanford University co-advised by Professor Steve Davis and Dr. Ken Caldeira. She earned her PhD in Civil and Environmental Engineering from the University of Cyprus, where she worked under the guidance of Professor Panos Papanastasiou to optimize the durability of materials used in photovoltaic systems. Her doctoral research employed advanced computational modeling using 3D finite element methods and XFEM to simulate stress, cracking, and degradation mechanisms in photovoltaic materials.
At Stanford, Lamprini’s research lies at the intersection of climate policy, economics, and equity. Her current work explores how economies with income inequality can optimally allocate resources between income redistribution and emissions abatement. Beyond research, she has led and contributed to multi-million-euro research initiatives across Europe and remains deeply interested in the societal and ethical dimensions of emerging technologies. Broadly, she is interested in developing integrated models that inform equitable and sustainable pathways for climate mitigation and economic development. -
Ashley Prow Fleischer
Postdoctoral Scholar, Earth and Planetary Sciences
BioI earned a PhD in Earth Science with a focus in paleoclimatology from Syracuse University, where my research focused on reconstructing past environmental change and biotic responses using microfossils and geochemical proxies. My work integrates stratigraphy, paleobiology, geochemistry, and climate modeling to better understand Earth's climate dynamics during the intervals of rapid change, like the Late Devonian and end Triassic mass extinctions.
