Somos lo que comemos. La aplicación de la isotopía estable en la arqueología de Mesoamérica

The lecture provides a comprehensive and well-structured overview of stable isotope analysis in Mesoamerican archaeology. Moreiras demonstrates deep expertise, clearly explaining complex scientific concepts in an accessible manner. The case studies are well-chosen and illustrate the power of isotopic analysis to address questions about diet, mobility, and social practices. The argumentation is solid, grounded in empirical data and established methodologies. The speaker acknowledges limitations, such as the need for complementary analyses and the potential for isotopic mixing models to introduce uncertainty. The sources cited are credible, including peer-reviewed journals and institutional projects. The title accurately reflects the content. The lecture is primarily an expert opinion presentation, but it is based on original research and a review of existing literature. The main strength is the integration of archaeological and biochemical data to provide nuanced interpretations of Mexica sacrifice. The main weakness is that the lecture is not a formal publication, so some details are simplified. Overall, it is a high-quality scientific presentation that contributes to the field.

The title accurately reflects the content, which focuses on the application of stable isotope analysis in Mesoamerican archaeology.

8/10

The lecture is delivered by a specialist with a strong academic background, presenting established isotopic methods and specific case studies. The content is consistent with current scientific knowledge, though it is a presentation rather than a peer-reviewed publication.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 00:00Introduction by Leonardo López Luján, welcoming the audience and presenting the speaker.
• 10:00Diana Moreiras begins her lecture, outlining the topics to be covered.
• 20:00Explanation of stable isotope methodology, including carbon, nitrogen, and oxygen isotopes.
• 30:00Introduction to the Mexica and the context of human sacrifice in the Basin of Mexico.
• 40:00Presentation of the osteological collections and contexts analyzed.
• 50:00Results for residents of San Cristóbal Ecatepec, showing local diets.
• 1:00:00Results for sacrificial victims, indicating diverse origins and diets.
• 1:10:00Interpretations of sacrifice at collective and individual levels using isotopes.
• 1:20:00Discussion of limitations and complementary techniques.
• 1:30:00Introduction of the 'Human Story Sacrifice Decoded' project.

• Proceedings of the National Academy of Sciences — Mentioned by Leonardo López Luján regarding obsidian provenance studies.
• Quaternary International — Journal where Diana Moreiras has published articles.
• Archaeological and Anthropological Sciences — Journal where Diana Moreiras has published articles.
• Journal of Anthropological Archaeology — Journal where Diana Moreiras has published articles.

• Stable isotope analysis in archaeology — General reference supporting the methodology described.
• Templo Mayor — Context for the sacrificial victims studied.