Publications by authors named "Hipolito Collado Giraldo"
Microscopic observation correlated with chemical-mineralogical characterization was performed on pigment samples from "Abrigo del Lince" rock art site (V-IV millennium BC), in order to provide contributions to the study of prehistoric schematic art on granite in the province of Badajoz (Spain). The research objectives include the understanding of technological and cultural aspects, as well as of conservation and deterioration issues related to the pictographs. The multi-analytical approach encompasses the integration of microscopic observation, SEM-EDS analysis, micro-Raman spectroscopy, and ATR-FTIR and allowed to achieve a multispectral overview of the samples and to describe their varied composition and the alteration pattern which connects them.
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- Lactase persistence (LP) evolved as a significant genetic trait in European, African, Middle Eastern, and South Asian populations over the last 10,000 years, largely influenced by milk consumption patterns.
- Despite evidence of widespread milk use in Europe since the Neolithic period, the relationship between prehistoric milk consumption and LP allele frequency is complex and suggests that other factors, such as environmental stressors, may have played a role in driving LP selection.
- The findings indicate that LP's rise in frequency may be better understood in the context of population dynamics and challenges faced by societies, rather than solely through the lens of milk exploitation.