天美传媒

Jennifer Vanos studies the effects of atmospheric processes on human health. 
She focuses on human exposures to extreme heat, radiation, and air pollution within urban areas; human heat balance modeling for thermal comfort and heat strain; the influence of microclimatic landscape design on exposures and health outcomes; and how children鈥檚 environments affect them, as well as understanding how to support their thermal safety.

Vanos is a member of the Urban Climate Research Center at ASU. She previously worked as an assistant professor at the University of California, San Diego and Texas Tech University. She completed her postdoctoral training at Health Canada and received her PhD from the University of Guelph in Canada.

I'm a Senior Research Fellow in Biogeochemistry in School of Civil Engineering and Surveying at the University of Portsmouth.

I'm an expert in pollution. The primary purpose of my research is to define the sources and fates of pollutants in the environment and develop interventions to prevent or mitigate their impact. I investigate many types of pollution including nutrients, metals, combustion products (from coal, wood, petrol and oil), plastic and organic pollutants.

I work in collaboration with industry partners to work out how to remove pollution from the environment using interventions and new technologies. I鈥檝e worked with a number of companies in the water sector including THA Aquatic, WPL and Southern Water.

I'm interested in developing a circular economy and exploring ways to transform waste into a useful resource. For example, I worked with Gallagher Aggregates Ltd looking at air pollution control residue (the leftover ash when we incinerate waste for energy). This toxic residue is typically sent to landfill but the company now combine it with quarry waste to make a safe aggregate, which they plan to supply the building trade.

I鈥檓 also involved with research into the health impacts of pollution. I鈥檓 working with the Portsmouth Hospitals NHS Trust, investigating the presence of microplastics in the lungs of chronic obstructive pulmonary disease (COPD) and asthma patients.

I recently made a successful proposal to the University of Portsmouth to purchase a micro-raman 鈥� a specialist microscope that can reveal tiny pieces of plastic below 1 micrometre in size and determine their polymer type. This significant investment will enhance our research as we鈥檒l be able to identify microplastics in the air and potentially those with the ability to enter the bloodstream. Only a handful of UK universities have this specialist equipment.

I peer review academic papers for a number of scientific journals including Estuarine, Coastal and Shelf Science and Environmental Science and Pollution Research. I'm also on the EU Reviewers Panel for Marie Curie research fellowships.

You can find my profile here: https://www.port.ac.uk/about-us/structure-and-governance/our-people/our-staff/fay-couceiro

Professor Richard Pancost is based in the School of Earth Sciences. His research investigates long term climate change and addresses what we can learn by comparing the sudden and dramatic changes in today鈥檚 climate with the changes in climate from millions of years ago. He looks at compounds in rocks and soils, with a view to shedding light on the nature of organisms living there or that once lived there. From this, he explores how climate change affects the Earth system, from the oceans to wetlands. 

Professor Pancost's other areas of interest explore how climate change creates inequalities in different global communities, the inclusion of African and Caribbean populations in environmental campaigning movements, and public education on climate change. He served as a Special Advisor to the city of Bristol as the first UK European Green Capital and launched two major programmes with the University鈥檚 Cabot Institute to explore the intersecting issues of social and climate justice. Professor Pancost is a Fellow of the Geochemical Society, a member of the NERC Science Committee and a Bristol Zoological Society Trustee.

Education
1992 - BS Geology, Case Western Reserve University
1998 - PhD Geosciences, Pennsylvania State University

Affiliations
Member of NERC Science Board/Committee, Member of Bristol Mayor鈥檚 Office International Strategy Board, Member of Bristol Zoo Society, Board of Trustees, Fellow of the European Association of Geochemistry, Fellow of the Geochemical Society

Accomplishments
2014 - Royal Society of Chemistry Interdisciplinary Award and RSC Fellow, 2020 - Distinguished Fellow of the Schumacher Institute

I am an ecosystem ecologist with interests in energy and biogeochemical cycles in freshwaters. My research program blends basic and applied research, and integrates across aquatic habitats including stream, river, wetland, lake littoral zones and the nearshore regions of the Great Lakes. My past and future research trajectory is governed by an interest in understanding the role of small, poorly quantified fluxes or perturbations on ecosystem processes, and in linking those ecosystem processes to the underlying structure of microbial, algal, macrophyte and animal communities.
One benefit of an academic career is the synergy between an active research program and undergraduate and graduate education. I currently teach undergrad and graduate courses in Ecology and Limnology, as well a professional development seminar for graduate students called The Scientific Profession where we cover topics related to grant writing, publishing, jobs, work-life balance, ethics, and gender issues, among many others.



Links of Interest








Research Interests

Limnology
Ecosystem Ecology of Streams and Rivers
Biogeochemistry

Dr. John Bargar is the  leader. His research interest focuses on molecular processes across molecular to pore to field scales that provide new insights into building new tools and models to better understand and simulate Earth system behavior.
For more than 25 years, Bargar has led projects pertaining to both molecular structure and system-scale research with respect to the behavior of essential metal micronutrients and metal contaminants in soils and natural waters. At the molecular level, his research has contributed important findings and models of metal behavior in soils and groundwater. Coordinated laboratory and field work conducted by Bargar and his team discovered that uranium behavior in contaminated soils at legacy DOE sites is controlled by short seasonal “hot moments” when water tables and dissolved oxygen are elevated. At the larger systems scale, his research has focused on understanding how, where, and when molecular reactions occur and interact across larger distances, from floodplains to regions. For example, laboratory model studies coordinated with field sampling performed by Bargar’s team showed that soil organic matter interactions control uranium accumulation and release in soils across the entire upper Colorado River Basin, where these interactions moderate persistent uranium groundwater contamination.
Before joining PNNL in 2022, Bargar led the SLAC National Accelerator Laboratory geosciences program, including the SLAC National Accelerator Laboratory Floodplain Hydro-Biogeochemistry Sciences Focus Area project, the SLAC-led multi-laboratory nuclear forensics research program, and the SLAC deep subsurface geochemistry project.
Bargar has participated as a reviewer for numerous geochemistry, hydrology, and chemistry journals, has chaired and organized numerous committees and symposia, and has been published in more than 190 scholarly articles.

Research Interests


Soil molecular processes across molecular to pore-to-field scales
Biogeochemistry, genesis, and transport of natural colloids
Metal micronutrient and contaminant biogeochemistry and reactive transport in soils
Water–rock interactions


Education


PhD in Geology, The Ohio State University
BS in Geological and Environmental Sciences, Stanford University
National Research Council Postdoctoral Fellowship, U.S. Geological Survey
SLAC Managerial Skill Development Series

Dr. David Hoyt is a chemist with the  team. Hoyt has over 30 years of experience with research related to nuclear magnetic resonance (NMR) and other forms of spectroscopy. His research focus has been on the structure and dynamics of bio-complexes and metabolite identification via NMR. More recently, his interests have broadened to include biogeochemistry and NMR specialty-probe development projects. Hoyt has co-authored peer-reviewed publications in Nature Microbiology, Nature Communications, Nature Structural Biology, PNAS, Cell, ISME, Molecular Cell, JACS, Biochemistry, and Journal of Magnetic Resonance.
For 10 years Hoyt served in EMSL management and for over 25 years in technical support of the EMSL user program—providing research collaboration in high-field liquids NMR with structural biology and metabolomics applications, as well as in situ chemistry projects.
Hoyt was responsible to site and develop ~$12 million in new American Reinvestment and Recovery Act funded magnetic resonance systems between June 2009 and November 2011. He has also served as project manager of several recent procurements for PNNL. From 2002 to present he worked to site and develop over $40 million in NMR and electron paramagnetic resonance equipment with EMSL operations. This work included enhancements to in situ controlled-environment NMR and metabolomics capabilities. His leadership on the R&D team for high temperature and high-pressure NMR rotor capability development for in situ measurements of mixed-phased chemistry and biologics has recently led to licensing by Revolution NMR LLC (Fort Collins, CO). His present interests now include advancing PNNL and EMSL science through further work developing and participating in research and R&D of integrated capabilities related to biological, environmental, and molecular-interface contexts.

Dr. John Cliff is an analytical chemist with the . He leads the  capability for biology and biogeochemistry. When not helping EMSL users with their research, he is busy developing techniques that help us understand nutrient fluxes at small spatial scales in terrestrial ecosystems, guard against nuclear proliferation and other weapons of mass destruction, and learn about the factors controlling greenhouse gas emissions.

Research Interests


Microbial and nuclear forensics and biogeochemistry
Developing capabilities to analyze and understand our world at micron length scales
Collaborating with researchers studying early life on our planet
Understanding sulfur metabolizing microorganisms from the Archean Eon to today


Education


PhD in Soil Science, minor in Environmental Engineering, Oregon State University, 2001
MS in Environmental Microbiology, West Virginia University, 1996
BS in Biology with honors, minor in Chemistry, Shepherd University, 1989


Awards and Recognition


Technical leader for the first International Atomic Energy Network Laboratory to be housed in a university
Outstanding Achievement Award, Subgroup on Safeguards Technical Support and International Safeguards Project Office (2008)
Outstanding Achievement Award. National Security Division, United States Department of Energy (2005)


Publications

2020
Boiteau, R. M., R. Kukkadapu, J. B. Cliff, C. R. Smallwood, L. Kovarik, M. G. Wirth, M. H. Engelhard, T. Varga, A. Dohnalkova, D. E. Perea, T. Wietsma, J. J. Moran, and K. S. Hofmockel. 2020. “Calcareous Organic Matter Coatings Sequester Siderophores in Alkaline Soils.” Science of the Total Environment 724. .
Bone, S. E., J. Cliff, K. Weaver, C. J. Takacs, S. Roycroft, S. Fendorf, and J. R. Bargar. 2020. “Complexation by Organic Matter Controls Uranium Mobility in Anoxic Sediments.” Environmental Science and Technology 54 (3): 1493-1502. .
Reilly, D. D., C. L. Beck, E. C. Buck, J. B. Cliff, A. M. Duffin, T. G. Lach, M. Liezers, K. W. Springer, S. J. Tedrow, and M. M. Zimmer. 2020. “Focused Ion Beam for Improved Spatially-Resolved Mass Spectrometry and Analysis of Radioactive Materials for Uranium Isotopic Analysis.” Talanta 211. .
2019
Brislawn, C. J., E. B. Graham, K. Dana, P. Ihardt, S. J. Fansler, W. B. Chrisler, J. B. Cliff, J. C. Stegen, J. J. Moran, and H. C. Bernstein. 2019. “Forfeiting the Priority Effect: Turnover Defines Biofilm Community Succession.” ISME Journal 13 (7): 1865-1877. .
Gregory, D., I. Mukherjee, S. L. Olson, R. R. Large, L. V. Danyushevsky, A. S. Stepanov, J. N. Avila, J. Cliff, T. R. Ireland, R. Raiswell, P. H. Olin, V. V. Maslennikov, and T. W. Lyons. 2019. “The Formation Mechanisms of Sedimentary Pyrite Nodules Determined by Trace Element and Sulfur Isotope Microanalysis.” Geochimica et Cosmochimica Acta 259: 53-68. .
Mulcahy, J. R., S. He, D. S. Jin, W. Guo, S. Arteta, J. B. Cliff, Z. Zhu, and W. D. Wei. 2019. “Experimental Insights into the Growth of Single Truncated Anatase Bipyramids.” Chemistry - A European Journal 25 (4): 993-996. .
Taylor, S. D., L. Kovarik, J. B. Cliff, and K. M. Rosso. 2019. “Facet-Selective Adsorption of Fe(II) on Hematite Visualized by Nanoscale Secondary Ion Mass Spectrometry.” Environmental Science: Nano 6 (8): 2429-2440. .
Vasdekis, A. E., H. Alanazi, A. M. Silverman, C. J. Williams, A. J. Canul, J. B. Cliff, A. C. Dohnalkova, and G. Stephanopoulos. 2019. “Eliciting the Impacts of Cellular Noise on Metabolic Trade-Offs by Quantitative Mass Imaging.” Nature Communications 10 (1). .
2018
China, S., S. M. Burrows, B. Wang, T. H. Harder, J. Weis, M. Tanarhte, L. V. Rizzo, J. Brito, G. G. Cirino, P. L. Ma, J. Cliff, P. Artaxo, M. K. Gilles, and A. Laskin. 2018. “Fungal Spores as a Source of Sodium Salt Particles in the Amazon Basin.” Nature Communications 9 (1). .
Doubleday, Z. A., J. Cliff, C. Izzo, and B. M. Gillanders. 2018. “Untapping the Potential of Sulfur Isotope Analysis in Biominerals.” Marine Ecology Progress Series 598: 159-166. .
LeTourneau, M. K., M. J. Marshall, J. B. Cliff, R. F. Bonsall, A. C. Dohnalkova, D. V. Mavrodi, S. I. Devi, O. V. Mavrodi, J. B. Harsh, D. M. Weller, and L. S. Thomashow. 2018. “Phenazine-1-Carboxylic Acid and Soil Moisture Influence Biofilm Development and Turnover of Rhizobacterial Biomass on Wheat Root Surfaces.” Environmental Microbiology 20 (6): 2178-2194. .
Nuñez, J., R. Renslow, J. B. Cliff, and C. R. Anderton. 2018. “NanoSIMS for Biological Applications: Current Practices and Analyses.” Biointerphases 13 (3). .
Proetto, M. T., C. E. Callmann, J. Cliff, C. J. Szymanski, D. Hu, S. B. Howell, J. E. Evans, G. Orr, and N. C. Gianneschi. 2018. “Tumor Retention of Enzyme-Responsive Pt(II) Drug-Loaded Nanoparticles Imaged by Nanoscale Secondary Ion Mass Spectrometry and Fluorescence Microscopy.” ACS Central Science 4 (11): 1477-1484. .
2017
Bone, S. E., J. J. Dynes, J. Cliff, and J. R. Bargar. 2017. “Uranium(Iv) Adsorption by Natural Organic Matter in Anoxic Sediments.” Proceedings of the National Academy of Sciences of the United States of America 114 (4): 711-716. .
Fehrenbacher, J. S., A. D. Russell, C. V. Davis, A. C. Gagnon, H. J. Spero, J. B. Cliff, Z. Zhu, and P. Martin. 2017. “Link between Light-Triggered Mg-Banding and Chamber Formation in the Planktic Foraminifera Neogloboquadrina dutertrei.” Nature Communications 8. .
Holmes, A. J., Y. V. Chew, F. Colakoglu, J. B. Cliff, E. Klaassens, M. N. Read, S. M. Solon-Biet, A. C. McMahon, V. C. Cogger, K. Ruohonen, D. Raubenheimer, D. G. Le Couteur, and S. J. Simpson. 2017. “Diet-Microbiome Interactions in Health Are Controlled by Intestinal Nitrogen Source Constraints.” Cell Metabolism 25 (1): 140-151. .
Johnson, S. P., F. J. Korhonen, C. L. Kirkland, J. B. Cliff, E. A. Belousova, and S. Sheppard. 2017. “An Isotopic Perspective on Growth and Differentiation of Proterozoic Orogenic Crust: From Subduction Magmatism to Cratonization.” Lithos 268-271: 76-86. .
McGrail, B. P., H. T. Schaef, F. A. Spane, J. B. Cliff, O. Qafoku, J. A. Horner, C. J. Thompson, A. T. Owen, and C. E. Sullivan. 2017. “Field Validation of Supercritical CO2 Reactivity with Basalts.” Environmental Science and Technology Letters 4 (1): 6-10. .
Roelofs, B., M. Barham, J. Cliff, M. Joachimski, L. Martin, and K. Trinajstic. 2017. “Assessing the Fidelity of Marine Vertebrate Microfossil δ18O Signatures and Their Potential for Palaeo-Ecological and -Climatic Reconstructions.” Palaeogeography, Palaeoclimatology, Palaeoecology 465: 79-92. .
Spetsius, Z. V., J. Cliff, W. L. Griffin, and S. Y. O'Reilly. 2017. “Carbon Isotopes of Eclogite-Hosted Diamonds from the Nyurbinskaya Kimberlite Pipe, Yakutia: The Metasomatic Origin of Diamonds.” Chemical Geology 455: 131-147. .
2016
Fougerouse, D., S. Micklethwaite, A. Halfpenny, S. M. Reddy, J. B. Cliff, L. A. J. Martin, M. Kilburn, P. Guagliardo, and S. Ulrich. 2016. “The Golden Ark: Arsenopyrite Crystal Plasticity and the Retention of Gold through High Strain and Metamorphism.” Terra Nova 28 (3): 181-187. .
2015
Kaiser, C., M. R. Kilburn, P. L. Clode, L. Fuchslueger, M. Koranda, J. B. Cliff, Z. M. Solaiman, and D. V. Murphy. 2015. “Exploring the Transfer of Recent Plant Photosynthates to Soil Microbes: Mycorrhizal Pathway vs Direct Root Exudation.” New Phytologist 205 (4): 1537-1551. .
Ribeiro, Y., R. C. Figueiredo e Silva, L. M. Lobato, L. C. Lima, F. J. Rios, S. G. Hagemann, and J. Cliff. 2015. “Fluid Inclusion and Sulfur and Oxygen Isotope Studies on Quartz-Carbonate-Sulfide Veins of the Carvoaria Velha Deposit, Córrego Do Sítio Gold Lineament, Quadrilátero Ferrífero, Minas Gerais, Brazil.” Ore Geology Reviews 67: 11-33. .
Smithies, R. H., C. L. Kirkland, J. B. Cliff, H. M. Howard, and R. Quentin de Gromard. 2015. “Syn-Volcanic Cannibalisation of Juvenile Felsic Crust: Superimposed Giant 18O-Depleted Rhyolite Systems in the Hot and Thinned Crust of Mesoproterozoic Central Australia.” Earth and Planetary Science Letters 424: 15-25. .
Van Kranendonk, M. J., C. L. Kirkland, and J. Cliff. 2015. “Oxygen Isotopes in Pilbara Craton Zircons Support a Global Increase in Crustal Recycling at 3.2ga.” Lithos 228-229: 90-98. .
Wacey, D., M. R. Kilburn, M. Saunders, J. B. Cliff, C. Kong, A. G. Liu, J. J. Matthews, and M. D. Brasier. 2015. “Uncovering Framboidal Pyrite Biogenicity Using Nano-Scale CNorg Mapping.” Geology 43 (1): 27-30. .
Wacey, D., N. Noffke, J. Cliff, M. E. Barley, and J. Farquhar. 2015. “Micro-Scale Quadruple Sulfur Isotope Analysis of Pyrite from the ~3480ma Dresser Formation: New Insights into Sulfur Cycling on the Early Earth.” Precambrian Research 258: 24-35. .
Yang, J., F. Meng, X. Xu, P. T. Robinson, Y. Dilek, A. B. Makeyev, R. Wirth, M. Wiedenbeck, and J. Cliff. 2015. “Diamonds, Native Elements and Metal Alloys from Chromitites of the Ray-Iz Ophiolite of the Polar Urals.” Gondwana Research 27 (2): 459-485. .
2014
Bougoure, J., M. Ludwig, M. Brundrett, J. Cliff, P. Clode, M. Kilburn, and P. Grierson. 2014. “High-Resolution Secondary Ion Mass Spectrometry Analysis of Carbon Dynamics in Mycorrhizas Formed by an Obligately Myco-Heterotrophic Orchid.” Plant, Cell and Environment 37 (5): 1223-1230. .
Chew, Y. V., A. J. Holmes, and J. B. Cliff. 2014. “Visualization of Metabolic Properties of Bacterial Cells Using Nanoscale Secondary Ion Mass Spectrometry (NanoSIMS).” Methods in Molecular Biology 1096: 133-146.  10.1007/978-1-62703-712-9_11
Evans, K. A., A. G. Tomkins, J. Cliff, and M. L. Fiorentini. 2014. “Insights into Subduction Zone Sulfur Recycling from Isotopic Analysis of Eclogite-Hosted Sulfides.” Chemical Geology 365: 1-19. .
Fu, B., J. Cliff, and R. E. Zartman. 2014. “Zircon Oxygen Isotopic Constraints from Plutonic Rocks on the Magmatic and Crustal Evolution of the Northern Appalachians in Southern New England, USA.” Canadian Journal of Earth Sciences 51 (5): 485-499. .
Giacometti, F., K. A. Evans, G. Rebay, J. Cliff, A. G. Tomkins, P. Rossetti, G. Vaggelli, and D. T. Adams. 2014. “Sulfur Isotope Evolution in Sulfide Ores from Western Alps: Assessing the Influence of Subduction-Related Metamorphism.” Geochemistry, Geophysics, Geosystems 15 (10): 3808-3829. .
Ingham, E. S., N. J. Cook, J. Cliff, C. L. Ciobanu, and A. Huddleston. 2014. “A Combined Chemical, Isotopic and Microstructural Study of Pyrite from Roll-Front Uranium Deposits, Lake Eyre Basin, South Australia.” Geochimica et Cosmochimica Acta 125: 440-465. .
Martyniuk, M., D. Baldwin, R. Jeffery, K. K. M. B. D. Silva, R. C. Woodward, J. Cliff, R. N. Krishnan, J. M. Dell, and L. Faraone. 2014. “Characterization of Mechanical, Optical and Structural Properties of Bismuth Oxide Thin Films as a Write-Once Medium for Blue Laser Recording.” Journal of British Studies 1633 (3). .
Wacey, D., M. Saunders, J. Cliff, M. R. Kilburn, C. Kong, M. E. Barley, and M. D. Brasier. 2014. “Geochemistry and Nano-Structure of a Putative ~3240 Million-Year-Old Black Smoker Biota, Sulphur Springs Group, Western Australia.” Precambrian Research 249: 1-12. .
Zhelezinskaia, I., A. J. Kaufman, J. Farquhar, and J. Cliff. 2014. “Large Sulfur Isotope Fractionations Associated with Neoarchean Microbial Sulfate Reduction.” Science 346 (6210): 742-744. .
2013
Ceh, J., M. R. Kilburn, J. B. Cliff, J. B. Raina, M. Van Keulen, and D. G. Bourne. 2013. “Nutrient Cycling in Early Coral Life Stages: Pocillopora damicornis Larvae Provide Their Algal Symbiont (Symbiodinium) with Nitrogen Acquired from Bacterial Associates.” Ecology and Evolution 3 (8): 2393-2400. .
Farquhar, J., J. Cliff, A. L. Zerkle, A. Kamyshny, S. W. Poulton, M. Claire, D. Adams, and B. Harms. 2013. “Pathways for Neoarchean Pyrite Formation Constrained by Mass-Independent Sulfur Isotopes.” Proceedings of the National Academy of Sciences of the United States of America 110 (44): 17638-17643. .
Fu, B., N. T. Kita, S. A. Wilde, X. Liu, J. Cliff, and A. Greig. 2013. “Origin of the Tongbai-Dabie-Sulu Neoproterozoic Low-δ 18O Igneous Province, East-Central China.” Contributions to Mineralogy and Petrology 165 (4): 641-662. .
Huang, J. X., W. L. Griffin, Y. Gréau, N. J. Pearson, S. Y. O'Reilly, J. Cliff, and L. Martin. 2013. “Unmasking Xenolithic Eclogites: Progressive Metasomatism of a Key Roberts Victor Sample.” Chemical Geology 364: 56-65. .
Kirkland, C. L., S. P. Johnson, R. H. Smithies, J. A. Hollis, M. T. D. Wingate, I. M. Tyler, A. H. Hickman, J. B. Cliff, S. Tessalina, E. A. Belousova, and R. C. Murphy. 2013. “Not-So-Suspect Terrane: Constraints on the Crustal Evolution of the Rudall Province.” Precambrian Research 235: 131-149. .
Kirkland, C. L., R. H. Smithies, A. J. Woodhouse, H. M. Howard, M. T. D. Wingate, E. A. Belousova, J. B. Cliff, R. C. Murphy, and C. V. Spaggiari. 2013. “Constraints and Deception in the Isotopic Record; the Crustal Evolution of the West Musgrave Province, Central Australia.” Gondwana Research 23 (2): 759-781. .
Lu, Y. J., R. Kerrich, A. I. S. Kemp, T. C. McCuaig, Z. Q. Hou, C. J. R. Hart, Z. X. Li, P. A. Cawood, L. Bagas, Z. M. Yang, J. Cliff, E. A. Belousova, F. Jourdan, and N. J. Evans. 2013. “Intracontinental Eocene-Oligocene Porphyry Cu Mineral Systems of Yunnan, Western Yangtze Craton, China: Compositional Characteristics, Sources, and Implications for Continental Collision Metallogeny.” Economic Geology 108 (7): 1541-1576. .
Lu, Y. J., R. Kerrich, T. C. McCuaig, Z. X. Li, C. J. R. Hart, P. A. Cawood, Z. Q. Hou, L. Bagas, J. Cliff, E. A. Belousova, and S. H. Tang. 2013. “Geochemical, Sr-Nd-Pb, and Zircon Hf-O Isotopic Compositions of Eocene-Oligocene Shoshonitic and Potassic Adakite-Like Felsic Intrusions in Western Yunnan, SW China: Petrogenesis and Tectonic Implications.” Journal of Petrology 54 (7): 1309-1348. .
Peres, P., P. M. L. Hedberg, S. Walton, N. Montgomery, J. B. Cliff, F. Rabemananjara, and M. Schuhmacher. 2013. “Nuclear Safeguards Applications Using LG-SIMS with Automated Screening Capabilities.” Surface and Interface Analysis 45 (1): 561-565. .
Pidgeon, R. T., A. A. Nemchin, and J. Cliff. 2013. “Interaction of Weathering Solutions with Oxygen and U-Pb Isotopic Systems of Radiation-Damaged Zircon from an Archean Granite, Darling Range Batholith, Western Australia.” Contributions to Mineralogy and Petrology 166 (2): 511-523. .
Raimondo, T., C. Clark, M. Hand, J. Cliff, and R. Anczkiewicz. 2013. “A Simple Mechanism for Mid-Crustal Shear Zones to Record Surface-Derived Fluid Signatures.” Geology 41 (6): 711-714. .
Wacey, D., N. McLoughlin, M. R. Kilburn, M. Saunders, J. B. Cliff, C. Kong, M. E. Barley, and M. D. Brasier. 2013. “Nanoscale Analysis of Pyritized Microfossils Reveals Differential Heterotrophic Consumption in the 虄1.9-Ga Gunflint Chert.” Proceedings of the National Academy of Sciences of the United States of America 110 (20): 8020-8024. .
2012
Fu, B., B. Paul, J. Cliff, M. Bröcker, and F. Bulle. 2012. “O-Hf Isotope Constraints on the Origin of Zircon in High-Pressure Mélange Blocks and Associated Matrix Rocks from Tinos and Syros, Greece.” European Journal of Mineralogy 24 (2): 277-287. .
Raimondo, T., C. Clark, M. Hand, J. Cliff, and C. Harris. 2012. “High-Resolution Geochemical Record of Fluid-Rock Interaction in a Mid-Crustal Shear Zone: A Comparative Study of Major Element and Oxygen Isotope Transport in Garnet.” Journal of Metamorphic Geology 30 (3): 255-280. .
2011
Hedberg, P. M. L., P. Peres, J. B. Cliff, F. Rabemananjara, S. Littmann, H. Thiele, C. Vincent, and N. Albert. 2011. “Improved Particle Location and Isotopic Screening Measurements of Sub-Micron Sized Particles by Secondary Ion Mass Spectrometry.” Journal of Analytical Atomic Spectrometry 26 (2): 406-413. .
Wacey, D., M. R. Kilburn, M. Saunders, J. Cliff, and M. D. Brasier. 2011. “Microfossils of Sulphur-Metabolizing Cells in 3.4-Billion-Year-Old Rocks of Western Australia.” Nature Geoscience 4 (10): 698-702. .
Wedlock, L. E., M. R. Kilburn, J. B. Cliff, L. Filgueira, M. Saunders, and S. J. Berners-Price. 2011. “Visualising Gold inside Tumour Cells Following Treatment with an Antitumour Gold(I) Complex.” Metallomics 3 (9): 917-925. .
2010
Kilburn, M. R., D. L. Jones, P. L. Clode, J. B. Cliff, E. A. Stockdale, A. M. Herrmann, and D. V. Murphy. 2010. “Application of Nanoscale Secondary Ion Mass Spectrometry to Plant Cell Research.” Plant Signaling and Behavior 5 (6): 760-762. .
Williams, D. E., M. R. Kilburn, J. Cliff, and G. I. N. Waterhouse. 2010. “Composition Changes around Sulphide Inclusions in Stainless Steels, and Implications for the Initiation of Pitting Corrosion.” Corrosion Science 52 (11): 3702-3716. .
2009
Clode, P. L., M. R. Kilburn, D. L. Jones, E. A. Stockdale, J. B. Cliff, A. M. Herrmann, and D. V. Murphy. 2009. “In Situ Mapping of Nutrient Uptake in the Rhizosphere Using Nanoscale Secondary Ion Mass Spectrometry.” Plant Physiology 151 (4): 1751-1757. .
2008
Donohue, D., A. Ciurapinski, J. Cliff Iii, F. Rüdenauer, T. Kuno, and J. Poths. 2008. “Microscopic Studies of Spherical Particles for Nuclear Safeguards.” Applied Surface Science 255 (5 PART 2): 2561-2568. .
Jarman, K. H., H. W. Kreuzer-Martin, D. S. Wunschel, N. B. Valentine, J. B. Cliff, C. E. Petersen, H. A. Colburn, and K. L. Wahl. 2008. “Bayesian-Integrated Microbial Forensics.” Applied and Environmental Microbiology 74 (11): 3573-3582. .
2007
Bliss, M., D. C. Gerlach, J. B. Cliff, M. B. Toloczko, D. S. Barnett, G. Ciampi, K. A. Jones, and K. G. Lynn. 2007. “Pb Quantification of CdZnTe Microheterogeneities Complimented by SEM, IR microscopy, EDX, and TOF-SIMS.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 579 (1): 138-140. .
Cliff, J. B., P. J. Bottomley, D. J. Gaspar, and D. D. Myrold. 2007. “Nitrogen Mineralization and Assimilation at Millimeter Scales.” Soil Biology and Biochemistry 39 (3): 823-826. .
2006
Gerlach, D. C., J. B. Cliff, D. E. Hurley, B. D. Reid, W. W. Little, G. H. Meriwether, A. J. Wickham, and T. A. Simmons. 2006. “Secondary Ionization Mass Spectrometric Analysis of Impurity Element Isotope Ratios in Nuclear Reactor Materials.” Applied Surface Science 252 (19): 7041-7044. .
2005
Cliff, J. B., K. H. Jarman, N. B. Valentine, S. L. Golledge, D. J. Gaspar, D. S. Wunschel, and K. L. Wahl. 2005. “Differentiation of Spores of Bacillus subtilis Grown in Different Media by Elemental Characterization Using Time-of-Flight Secondary Ion Mass Spectrometry.” Applied and environmental microbiology 71 (11): 6524-6530. .
2004
飧�. 2004. “Peak Fitting to Resolve CN- Isotope Ratios in Biological and Environmental Samples Using TOF-SIMS.” Applied Surface Science 231-232: 912-916. .
2003
飧�. 2003. “Erratum: Modeling the Effects of Diffusion Limitations on Nitrogen-15 Isotope Dilution Experiments with Soil Aggregates (Soil Science Society of America Journal (2002) 66 (1868-1877).” Soil Science Society of America Journal 67 (2): 677. .
2002
Cliff, J. B., P. J. Bottomley, R. Haggerty, and D. D. Myrold. 2002. “Modeling the Effects of Diffusion Limitations on Nitrogen-15 Isotope Dilution Experiments with Soil Aggregates.” Soil Science Society of America Journal 66 (6): 1868-1877. .
Cliff, J. B., D. J. Gaspar, P. J. Bottomley, and D. D. Myrold. 2002. “Exploration of Inorganic C and N Assimilation by Soil Soil Microbes with Time-of-Flight Secondary Ion Mass Spectrometry.” Applied and environmental microbiology 68 (8): 4067-4073. .

 (he/him) addresses the literal foundation of all cropping systems: soils. He advances how we monitor and manage soils as natural capital. His research team evaluates how human activities can enhance or compromise soil services to human societies, with an emphasis on food security from urban and rural agroecosystems in the U.S. Midwest and East Africa.
More information: Margenot is an Associate Professor of Soil and Biogeochemistry at the University of Illinois Urbana-Champaign. With a keen focus on the intricate dynamics of soils, his research delves into the realms of Fourier Transform Infrared (FTIR) Spectroscopy, soil fertility in East Africa, urban agriculture, phosphorus, and soil organic matter and enzymes. He is dedicated to advancing the understanding of soils as the foundation of cropping systems, and his mission involves not only monitoring and managing soils as natural capital but also assessing the impact of human activities on soil services critical to global food security. Margenot's research has contributed to insights into soil health metrics and spectroscopy applications, and he has also authored chapters in notable books such as "Phosphorus Fertilization and Management in Soils of Sub-Saharan Africa." He was also a recognized U.S. Borlaug Fellow in Global Food Security in 2014. Before joining the University of Illinois faculty, Margenot received his Bachelor of Arts in Philosophy and his Bachelor of Science in Biochemistry and Molecular Biology at Connecticut College in 2010. He then moved on to complete his Ph.D. in Soils and Biogeochemistry at the University of California, Davis.
Affiliations: Margenot is an associate professor and faculty  specialist in the  in the  (ACES) at the . He is an associate director and founding member of the Agroecosystem Sustainability Center and affiliate faculty in the ; and the . 

My projects focus on the understanding of ecosystem biogeochemical cycles within natural and managed ecosystems with an emphasis on ecosystem sustainability, resilience, diversity and adaptation.

's research aims to resolve the complex dynamics of nitrogen cycling in hydrologic systems. His group uses a variety of field, laboratory, and modeling techniques to understand how hydrological and biogeochemical processes interact to control the transport and transformation of reactive nitrogen and how human activities influence these interactions. In particular, they specialize in the application of stable isotope techniques to examine the impact of hydrological and biogeochemical processes on the production, retention, and reactive transport of nitrate and nitrous oxide.


Zhongjie Yu is an assistant professor in the , part of the  at the .