Guharay (Ph.D.,1982, University of Nottingham), is currently Advisor Projects and Services with a Mesoamerican Information Services for Sustainable Agriculture, SIMAS. Earlier he served as Program manager Climate Smart Cocoa World Cocoa Foundation (WCF), Scientist Research for Development, International Center for Tropical Agriculture (CIAT); Programme Leader for Integrated Pest Management and Agroforestry, Tropical Agricultural Research and Higher Education Center (CATIE), Professor of Plant Protection, National Agricultural University, Nicaragua (UNA) and Research Assistant Professor Biophysics, State University of New York at Buffalo. He is a member of the Latin American Society of Agroecology. He elucidated the biophysical basis of mechanoreception by discovering stretch-activated ion channels. His research helped to scale the biological control of vectors of Malaria in Nicaragua and laid the foundation of ecological management of agroforestry systems in Mesoamerica. He was awarded National Scholarship for Ph.D. studies by Govt. of India in 1978, the Research Scientist of the year by CATIE 2003, and the Coffee personality of Nicaragua by RAMACAFE 2006.

Kohayakawa (PhD, Cambridge, 1991) is a Full Professor at the Institute of Mathematics and Statistics of the University of São Paulo. He works mainly in the areas of discrete mathematics and theoretical computer science. He was one of the first researchers to promote the use of Szemerédi's regularity method in the sparse setting, focusing on analogues of classical extremal problems in sparse random environments. More recently, he investigated limits of permutation sequences and successfully obtained strong estimates on the number of B_h-sets. His papers on chromatic thresholds of graphs, co-authored with P. Allen, J. Böttcher, S. Griffiths, and R. Morris, received the 2018 Delbert Ray Fulkerson Prize of the American Mathematical Society and Mathematical Optimization Society. He is a member of the Academy of Sciences of the State of São Paulo and of the Brazilian Academy of Sciences.

Litter is Doctor in Chemistry from the Buenos Aires University, Argentina (1974) with Postdoctoral stage at the University of Arizona, USA (1983). She is Senior Researcher of the National Research Council (CONICET) and Full Professor at the University of General San Martín, Argentina. She was Principal Researcher and Head of the Environmental Chemistry Remediation Division at the National Atomic Commission. Main research interests: treatment of organic and inorganic contaminants in water and air by innovative advanced technologies, especially heterogeneous photocatalysis and use of iron nanomaterials. She authored more than 250 scientific publications in international journals, books and chapters of books. She received the Mercosur Prize twice in 2006 and 2011. She was President of the Organizing Committee of the 5th International Congress on Arsenic in the Environment in Buenos Aires, Argentina, 2014. She was designated pioneer on photocatalysis in Argentina (2016). She received the Eduardo Charreau Prize 2021 Edition

Ugarte (PhD, 1990, Université Paris-Sud) is professor, Instituto de Física Gleb Wataghin, Campinas, Brazil. His activities have been related to the experimental study of structural and electronic properties of nanoscale systems (nanoparticles, nanotubes, nanowires, etc.), using high spatial resolution techniques associated with electron microscopy. He designed and implemented the Brazilian Electron Microscopy Facility, which was opened in 1999; this microscopy lab was the seed to the subsequent creation of the Brazilian National Nanotechnology Lab in 2011. His prizes include Latsis Prize, École Polytechnique Fédérale de Lausanne, Switzerland; Guggenheim Fellowship, USA; Scopus Prize, Brazil; TWAS Prize in Physics. His is a member of the Brazilian science academy.

Wyse (PhD, 1995, Porto Alegre, Brazil) is full professor of Biochemistry of the Institute of Basic Health Sciences at the Universidade Federal do Rio Grande do Sul, Member of the Brazilian Academy of Sciences. Her prizes include CAPES-Elsevier Award 2014, Pesquisador Gaúcho Award 2018 from the State Research Foundation and Scientist of the Year 2020 Award from International Achievements Research Center, USA. Her research work is focused on the neurotoxic mechanisms of homocysteine and neurometabolic and neurodegenerative diseases, as well as on neurobiology of menopause and neuroprotection, encompassing multiple experimental approach ranging from neurochemistry to behavior. Her studies have contributed to the understanding of biomolecule damage in hyperhomocysteinemic and homocystinuric patients and show potential to improve medical practice. She has published more than 400 scientific papers and has advised more than 70 masters and PhDs. Convinced that access to science and education are pillars to citizenship, she has launched a social project for underprivileged children of the public school system from the outskirts of her town, Porto Alegre. She published a book of poetry.