Barcap upgrades AMAT, Multiple brokers initiates EVAC Key Research: Jeff downgrades APKT, Bernstein upgrades DTEGY, JMP downgrades ADBE, Bofa cuts SO & upgrades NVE Key Research: UBS downgrades DANOY & initiates AHS/CCRN/LPNT/ASGN/THC/UHS/VHS (nut's) an CYH/HMA (buy's) Key Research: Nomura upgrade