A power supply including an inverter receiving a DC input signal from a DC input source. The document feeder device includes a frame and at least one cantilevered roller shaft for advancing a document, where an unsupported end of the at least one cantilevered roller shaft floats. The method may use a multi-variant algorithm that has weighted measures, such as multiple parameters having one or more subsegments. Prior to interpretation, the scripts can be reviewed for delay conditionals, and such statements can be modified for more efficient interpretation. The invention further relates to methods for identifying and using agents, including small organic molecules, antibodies, peptides, cyclic peptides, nucleic acids, antisense nucleic acids, RNAi, and ribozymes, that modulate angiogenesis via modulation of endothelial cell haptotaxis; as well as to the use of expression profiles and compositions in diagnosis and therapy of angiogenesis and cancer.