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The following posts are in no particular order. They are purposely randomized.

Resident experts

Nataliya Karyakina

Dr. Nataliya Karyakina brings extensive expertise in toxicology and risk assessment to RSI. With a Ph.D. in Toxicology and experience at the McLaughlin Centre for Population Health Risk Assessment, she specializes in evaluating health risks from exposure to various toxic agents. Her research spans essential and toxic metals, pharmaceuticals, and nanomaterials. She has contributed to projects on chemical classification and labeling, as well as health-based regulatory guidance. Currently, she focuses on the health effects of engineered nanoalumina and diagnostic criteria for occupational manganism.

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Resident experts

Margaret Wilson

Margaret Wilson holds a BSc, BEd, and MSc in Molecular Biology, with post-graduate certificates in Population Health Risk Assessment and Management. She has worked extensively in health risk research, from BSE risk management to foodborne hazards. Currently at RSI, her focus includes risk prioritization and addressing challenges related to climate change. Margaret's multidisciplinary background equips her to tackle complex risk issues effectively.

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Associate experts

James Gomes

Dr. James Gomes, PhD is an Associate Expert with Risk Sciences International and an associate professor at the Interdisciplinary School of Health Sciences, University of Ottawa. Dr. Gomes is affiliated with the Institute of Population Health, Institute of Environment, and Center for Advanced Research in Environmental Genomics.

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RSI Experts

Monique Macdonald

Monique Macdonald brings 35 years of experience in office management and financial administration to her role as Office Administrator at RSI. Specializing in stakeholder liaison, data management, and bookkeeping, she also supports sales, marketing, and workshop administration. Monique holds a diploma in Business Administration and Accounting and has a background in both aerial surveying and industry association firms. Additionally, she serves as RSI’s Alternate Security Officer for federal government contracting services.

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Resident experts

Michael G. Tyshenko

With interdisciplinary training in Life Sciences, Public Health, and Public Administration, Dr. Michael G. Tyshenko specializes in health risk communication and policy. He collaborates globally on infectious disease research, including SARS, MERS, and COVID-19, and leads chemical peer reviews at Risk Sciences International (RSI). His work also extends to pandemic planning in Nepal, focusing on drone delivery of medical supplies to remote areas. Tyshenko's expertise is sought by various government departments in Canada and abroad.

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Associate experts

Patricia Larkin

Dr. Patricia Larkin's career is dedicated to policy and regulatory assessments, focusing on the intersection of social determinants of health and health equity. Her expertise lies in managing human health and environmental risks, particularly in energy, water resources, and climate change. Patricia's research explores Canadian innovation in energy regulatory decision-making and its impact on risk management. She has led interdisciplinary international research projects, addressing risk management in public decision-making and environmental issues like carbon capture and storage. As Chair of the Applied Risk Management Specialty Group of the Society for Risk Analysis, she continues to contribute to this field.

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Associate experts

Tee L. Guidotti

Dr. Tee L. Guidotti is an esteemed international consultant in occupational and environmental medicine, specializing in risk management and sustainability. His work encompasses problem-solving, medical evaluation, medicolegal services, and extensive publishing and writing. Although retired from the George Washington University, he maintains active roles in teaching and research, holding adjunct faculty positions at West Virginia University and the University of Alberta. His interests span energy technologies, firefighter health, climate change adaptation, and science policy. Dr. Guidotti's contributions include over 300 papers, eight books, and numerous awards, notably the Knudsen Award for Lifetime Achievement in Occupational and Environmental Medicine in 2013. His focus now centers on environmental sustainability and health.

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Resident experts

Paul Stanish

Paul Stanish holds a B.Sc. in Chemistry from Carleton University and a Ph.D. in Chemistry and Nanotechnology from the University of Waterloo. His doctoral research focused on energy movement in semiconducting oxides. Paul has experience in analytical chemistry and has developed Android applications for risk management in options trading. He joined Risk Sciences International in 2021, focusing on leveraging emerging tools to modernize client understanding of risk and streamline data culture.

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Resident experts

Donald Mattison

Don Mattison's career is an amalgamation of medicine, science, and public service. He started with a Bachelor's degree in Chemistry and Mathematics, followed by a Master's from MIT in Chemistry. He then pivoted to medicine, obtaining an MD from Columbia University and focusing on pharmacology and toxicology in reproductive health during his residencies. Mattison has held several prestigious appointments, including Dean of the University of Pittsburgh's Graduate School of Public Health and Chief Medical Officer at Risk Sciences International. Throughout his career, he obtained medical licenses in six U.S. states and served in the U.S. Public Health Service, retiring with the rank of Captain. Most recently, he became a Distinguished Professor of Epidemiology at the University of South Carolina.

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Associate experts

Ian Arnold

Dr. Arnold, a former general surgeon and occupational health consultant in Labrador and Nouveau Quebec, served Quebec Cartier Mining Ltd and the Iron Ore Company of Canada from 1973 to 1981. He has held teaching positions at various Canadian medical faculties and currently serves as an Adjunct Professor at McGill University. Dr. Arnold earned his M.D. from Queen's University in 1968 and has an extensive publication and presentation record with over 100 papers. He has received numerous honors for his contributions to occupational health and workplace psychological health and safety.

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