Sandra Zetina Ocaña

She is a researcher at the Institute of Aesthetic Research of the National Autonomous University of Mexico (UNAM). She is part of the National Science Laboratory for Research and Conservation of Cultural Heritage (LANCIC) and the National System of Researchers (CONACYT) Level 1. Her field of study is Mexican modern art of the first half of the twentieth century, creative processes and the role of materiality in art. She holds a PhD and a master's degree in art history from the Faculty of Philosophy and Letters of UNAM, and a degree in restoration of movable property from the National School of Conservation, Restoration and Museography Manuel M del Castillo Negrete ENCRyM of the National Institute of Anthropology and History (INAH). She is a professor of the postgraduate course in art history at the UNAM, and has written more than 30 specialized articles, papers and chapters in books on Mexican art, published in Mexico and abroad. She has curated exhibitions at the National Museum of Art (The matter of art, 2004), the Siqueiros Public Art Hall (Low viscosity: the birth of fascism and other solutions, 2006), the Carrillo Gil Museum, and Americas Society (Tiempos violentos /Shattered glass), in New York City. Her current line of research deals with the production of Diego Rivera during his last years in Paris (1914-1921) and his first mural works, especially Creation (1922-1923).

Diana Quintero González

She has a bachelor's degree in chemistry and a master's degree in chemical sciences from the University of Guadalajara; she completed a master's degree in the diagnosis of the state of conservation of historical heritage from Pablo de Olavide University of Seville, and graduated under the direction of Sandra Zetina through the research work "Material study of the mural Alfareros tonaltecas, Carlos Orozco Romero 1923”. She has been teaching applied chemistry to restoration at the School of Conservation and Restoration of the West (ECRO) since 2017, and has been a scientific advisor to the seminar mural painting workshop participating in the diagnosis of the works of “Prometheus of María José Servín”, “The sciences and arts of Alfonso Mario Medina”, the decorative painting of the Casa Zuno and the mural paintings of “Atanasio Monroy” located in the Rectory building of the University Center for Exact Sciences and Engineering (CUCEI), among others. She has also been an advisor to the seminar on cultural heritage of metal and the easel painting workshop. She has participated in the direction of several bachelor's theses in the restoration of movable property, and is currently a member of the group of studies on painting and materiality of the Regional Museum of Guadalajara, where she contributes with the material study of painting on panel and sheet.

José Luis Ruvalcaba Sil

He studied physics at the Faculty of Sciences of the National Autonomous University of Mexico (UNAM), and a doctorate in science at the Laboratory of Analysis by Nuclear Reactions, in Namur, Belgium, from 1993 to 1997. Since October 1997 he has been a researcher at the Institute of Physics of the UNAM. Among his research the non-destructive characterization in situ of archaeological and historical objects and materials for which he has developed specialized instrumentation stands out. He has consolidated a non-destructive analysis research network for studies in art, archaeology and history in which groups from Mexico from the UNAM, the National Institute of Anthropology and History and Fine Arts, among other institutions, participate. He has participated in a relevant way in the study of objects and collections in the most important collections and historical sites of Mexico. Since 2014 he has been the coordinator of the National Laboratory of the National Council of Humanities, Sciences and Technology (Conahcyt), of Sciences for Research and Conservation of Cultural Heritage (LANCIC), and was a member of the Academic Technical Committee of the Conahcyt National Network on the same subject. With regard to scientific production, he has published numerous indexed research articles, chapters in books and memoirs in extenso (more than 200). He has presented more than 500 papers at congresses, most of them international; he has directed 51 theses (12 D, 13 M, 26 L), and he has participated in various dissemination activities. He has directed 30 research projects funded by the Conahcyt, the UNAM and other institutions. He has been a member of the Mexican Academy of Sciences since 2004 and Level III of the National System of Researchers of the Conahcyt since 2018.