A sewing machine including a needle being supplied with an upper thread, a loop taker which accommodates a bobbin for a bottom thread, and a drive unit, which forces the needle to perform a reciprocating movement. The hollow partitions and transverse walls define baking pits within the bays for stacking carbonaceous articles therein. In an alternative embodiment, the result of the stopping rule testing may be used for H-ARQ acknowledgement generation: if the iteration converges, an ACK is generated and if the iteration diverges, a NACK is generated. A performance measurement is based upon performance data that us collected from one of the ILECs processes. Various business models can be implemented which charge subscribers fees based on the number of streams they wish to simultaneously receive, andor the total number of channels that they wish to access. The mechanical stresses on the magnets are controlled using compliant layers and spacers.