The present invention relates to a downhole artificial lifting system for introducing fluid into a production casing from an annulus arranged outside the production casing. The isolation layer includes braided fibers, and the braided fibers include a material having at least substantially similar properties as the composite structure material. Ventricular function of the heart is sensed. The interfaces prevent the binding support platform from separating from the snowboard except when a force or torque applied to the snowboard exceeds a set threshold. The adapter bucket is configured to properly register either of such containers types so that its center of gravity axis is colinearly aligned with the rotation axis of the bucket and the mixing apparatus, regardless of whether the containers’ center of gravity axes and central geometric axes are coincident and colinear with each other or laterally offset with respect to each other. Silicate layers such as mica or talc and graphite are particularly suitable as crack promoters, C.