The biodegradable heterophase compositions comprise partially or completely destructurised andor complexed starch, a polysaccharide ester and a plasticizer for the polysaccharide ester. A request barcode is generated from the settlement request information, and the POS register terminal displays or prints the information. A second IC substrate may have a second magnet coupled with a second electrical routing feature. A wire cutting mechanism is mounted on the start-terminal mounting rack and forms ingress and egress for wires. A server using a shared buffer in this manner may transfer content of the content unit to clients using the shared buffer until all requesting clients have received the content unit. Abnormal hemodynamic response data can be determined by a negative trough in a graph of the HDR data or by the duration, depth, or area of the negative trough.