Abstract: The present disclosure is directed to methods of detecting small fragments of known nucleic acid biomarkers.

Abstract: Disclosed herein is a windmill comprising a vertical shaft mounted for rotation about its longitudinal axis, a number of blades each pivotally mounted for angular orientation about a longitudinal axis disposed parallel to the axis of rotation of the vertical shaft, supporting arms extending radially outwardly from the vertical shaft for supporting each blade, and interconnecting links connecting each of the blades to a junction adjacent the vertical shaft longitudinal axis for controlling the angular orientation of the blades relative to the supporting arms. The interconnecting links have inner ends connected to the junction and connect the blades together at corresponding points so that the blades counterbalance each other to resist centrifugal force during rotation of the windmill.

Abstract: A windmill is disclosed, the windmill including a vertical shaft mounted for rotation about its longitudinal axis, a number of blades spaced circumferentially around the longitudinal axis, and being disposed generally parallel to the axis of rotation of the vertical shaft, and supporting arms extending radially outwardly from the vertical shaft for supporting the blades. The windmill also includes a first member connected to an upper end of one of the blades and defining a first surface having a leading edge with respect to the direction of movement of the blade and a trailing edge rearward of the leading edge, the leading edge being lower than the trailing edge. The first surface also includes an inside lateral edge and an outer lateral edge spaced radially outwardly from the inside lateral edge, the inside lateral edge being higher than the outer lateral edge.