Supercritical Fluids for Higher Extraction Yields of Lipids from Archeological Ceramics.

The extraction and study of organic residues from ceramics has been a subject of interest for the last 50 years in archeology and archeological science. Lipids are among the best-preserved organic substances in archeological contexts and can provide information about the diets of ancient populations as well as past environments. Here, we present a method which demonstrates significantly improved extraction of lipids from archeological pots by replacing liquid organic solvents with supercritical fluids.

Lower limb activity in the Cis-Baikal: entheseal changes among middle Holocene Siberian foragers.

Lower limb entheseal changes are evaluated in order to reconstruct activity levels and more fully understand cultural and behavioral variation among the middle Holocene (ca. 9,000-3,000 years BP) foragers of Siberia's Cis-Baikal region. The four cemetery samples examined span a period of diachronic change characterized by an 800- to 1,000-year discontinuity in the use of formal cemeteries in the region.

Upper limb musculoskeletal stress markers among middle Holocene foragers of Siberia's Cis-Baikal region.

This evaluation of musculoskeletal stress markers (MSMs) in the Cis-Baikal focuses on upper limb activity reconstruction among the region's middle Holocene foragers, particularly as it pertains to adaptation and cultural change. The five cemetery populations investigated represent two discrete groups separated by an 800-1,000 year hiatus: the Early Neolithic (8000-7000/6800 cal. BP) Kitoi culture and the Late Neolithic/Bronze Age (6000/5800-4000 cal.