Voice and data streams transmitted from a conventional DSVD modem are interfaced directly to a network access server through a modified DSVD modem according to the invention. The invention also relates to screening assays to identify compounds that modulate relaxin andor relaxin receptor activity. In another embodiment, a number of hidden nodes of the particular node is determined across a range of transmission powers, and a delay associated with the particular node reaching a root node in the network across the range of transmission powers is also determined based on the neighbor nodes reachable at respective transmission powers. In combination, the inter-nodal connection subsets implement the fully connected neural network. A buried region, forming the base of the parasitic bipolar transistor, operates as a detector of the variations in current flowing caused by impingement of laser light on the substrate. Thus, interpretation of weighted trial data, such as product demand data, can be achieved and acted upon with an accurate estimation of risk.