title: Niagara ayaa Paulus u doortay inuu hoggaamiyo kooxda kubbadda koleyga ragga
abstract: si kastooy ahaataba si lama filaan ah ayuu Greg Paulus u helay shaqadiisii ugu horeysay ee tababare, ilaalada hore ee Duke ma noqon doono mid si buuxda u diyaarsan.