Use-wear analysis of an Amudian laminar assemblage from the Acheuleo-Yabrudian of Qesem Cave, Israel

In this paper the results of use-wear analysis of an Amudian lithic assemblage recently discovered at Qesem Cave, Israel, arc presented. Although very old. this assemblage maintains well-preserved traces of use that indicate that butchering activities and plants collecting were carried out at the site. Cut marks on faunal remains confirm the observations obtained by use-wear analysis. (c) 2005 Elsevier Ltd. All rights reserved

Barrier function of the membrane system for viral transmission.

<p>MRC-5 primary fibroblasts cultured in 24-transwell plates were separated from suspension containing reporter Lentiviruses by the membrane system for a period of 72 h. Infection rates were quantified by FACS analyses. Regardless of the MOI level, no relevant infection was detected in the membrane group (squares). In the control group (naïve membrane; circles), infection levels corresponded to increasing MOI levels from 40% up to 99.5%.</p

Oxygen partial pressure in the gas chamber.

<p>Levels of oxygen at the end of successive 24 h cycles were monitored in the central cavity and in the 2 side chambers. Solid black line, central cavity; solid grey line, side chambers. Data are presented as the 3^rd grade polynomial curves.</p

Diffusion of large molecules across the membrane system is impeded.

<p>Diffusion of mouse IgG across naïve membrane (squares) or diffusions of IgG (circles) or C1q (triangles) across reconstituted membranes. Values represent the relative amount of solute retained in the loaded chamber as a function of time.</p