Missing the point: re-evaluating the earliest lithic technology in the Middle Orinoco.

The Culebra site, located in close proximity to the Atures Rapids, is one of the very few open-air occupations in the entire Orinoco valley that is thought to date to the early Holocene. Following renewed excavations in this location, we characterize the stone technology in unprecedented detail and perform both quantitative and qualitative analyses of the assemblage deposited in the first cultural layers. Additionally, we directly date the sediment forming the depositional context of the assemblage using stratigraphically stable components of soil organic matter.

[Accesibility and tolerability on the use of subcutaneous hormone implants in a socially excluded population].

Objective: To determine the acceptability and tolerability of subcutaneous implants used in a socially excluded population from El Vacie, Seville.

Design: Prospective cohort study with follow-up.

Setting: Pino Montano B Outpatient Department in Seville, Spain.