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The text is the result of a doctoral research, carried out during four years, whose purpose was the improvement of the teaching-learning process of Cuban History in the fifth and sixth grade of Primary Education. It is structured in two chapters, the first one, which deals with the theoretical foundations of the childhood history content, and the second one, which argues the didactic conception, the methodology for its treatment and also has some examples of activities for teachers to better understand how to implement this new historical content. Its essential purpose is for teachers to...

A report on the first season of excavations at the site of Cerro de San Cristobal in the region of Extremadura. An archaeometallurgical survey and subsequent excavation revealed evidence of habitation, mineral extraction and production activities at the site in the Late Bronze Age. This report describes the site's location, the methodology of the investigation, the stratigraphy of the various trenches and the finds, including hammers and crushers and crucibles.

River networks are critically important ecosystems. This interdisciplinary book provides an integrated ecohydrological framework blending laboratory, field, and theoretical evidence that changes our understanding of river networks as ecological corridors. It describes how the physical structure of the river environment impacts biodiversity, species invasions, population dynamics, and the spread of waterborne disease. State-of-the-art research on the ecological roles of the structure of river networks is summarized, including important studies on the spread and control of waterborne diseases,...