Membrane Computing as a Modelling Tool: Looking Back and Forward from Sevilla

This paper is a tribute to Prof. Mario de Jesús Pérez- Jiménez. An overview of modelling applications in membrane computing has been compiled, trying to narrate it from a historical perspective and including numerous bibliographical references. Since being exhaustive was obviously out of scope, this quick tour on almost two decades of applications is biased, paying special attention to the contributions in which Prof. Pérez-Jiménez and members of his research group were involved.Ministerio de Economía y Competitividad TIN2017-89842-

Chiquihuite Cave and America’s hidden limestone industries: a reply to Chatters et al.

This paper is a reply to Chatters et al. (2021. “Evaluating Claims of Early Human Occupation at Chiquihuite Cave, Mexico.” PaleoAmerica 8, doi:10.1080/20555563.2021.1940441), in which they raise a large number of doubts about the legitimacy of our claims of earlier-than-expected human presence at Chiquihuite Cave, in northern Zacatecas, Mexico, mainly questioning the artificial nature of the lithic assemblage and the integrity of our geological contexts. We respond to their main topics of concern, contributing arguments in defense of the human origin of the artifacts. We also include 10 examples of stone tools, with full descriptions and photographs, focusing on modified flakes that bear indicators of use-wear and intentional modification

Chiquihuite Cave and America’s hidden limestone industries: a reply to Chatters et al.

This paper is a reply to Chatters et al. (2021. “Evaluating Claims of Early Human Occupation at Chiquihuite Cave, Mexico.” PaleoAmerica 8, doi:10.1080/20555563.2021.1940441), in which they raise a large number of doubts about the legitimacy of our claims of earlier-than-expected human presence at Chiquihuite Cave, in northern Zacatecas, Mexico, mainly questioning the artificial nature of the lithic assemblage and the integrity of our geological contexts. We respond to their main topics of concern, contributing arguments in defense of the human origin of the artifacts. We also include 10 examples of stone tools, with full descriptions and photographs, focusing on modified flakes that bear indicators of use-wear and intentional modification