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. 2015 Mar 20;10(3):e0121208. doi: 10.1371/journal.pone.0121208

Table 2. Experimental protocol variables and edge features of the stone tools.

Experimental variables Tool measures (mm) Edge features
Ref Worked Material Actions Motion α of work Time Hand Exp L W T α edge Edge shaping Prof. Del. Hor. Del.
QTAC19 Skin, subcutaneous tissues Skinning Long. Uni/Bid. 75–90° 40 min R 1 50 19 9 35° ncfg. inc Cx
QTAC20 Skin, subcutaneous tissues Skinning Long. Uni. 75–90° 15 min L 2 50 26 7 30° ncfg. inc Cx
QTAC21 Meat Disarticuling Uni. Long. 75–90° 45 min R 3 53 29 9 45° ncfg. inc Cx
SNC40 Meat Disarticuling and defleshing Uni/bid. Long. 75–90° 120 min R 1 50 46 10 30° ncfg. str Cx(sin)
SNC41 Skin / meat Skinning, disariculing, defleshing Uni/bid. Trans. 75–90° 35 min R 1 74 43 21 40° ncfg. inc Cx
SNC42 Skin / meat Skinning, disariculing, defleshing Uni/bid. Trans. 75–90° 32 min L 2 57 40 14 40° ncfg. inc cx
SNC43 Skin / meat Skinning, disariculing, defleshing Uni/bid. Trans. 75–90° 45 min L 2 36 21 5 35° ncfg. inc cx

Ref. (QTA for quartzite tools and SN for Neogene chert tools); worked material; actions; direction of motion (unidirectional-Uni-, bidirectional-bid-, longitudinal-Long-, transverse-Trans-); angle of work; time: angle edge; edge shaping (shaped-shp- and not sdhaped—nshp-); profile delineation (straight—str-, incurved-inc-, sinuous—sin-); horizontal delineation (convex-cx-, sinuous-sin-, uniangular-1a-).