WORCESTER, MA – After just a handful of negotiating sessions held over the last two months, the 2,214 nurses represented by the Massachusetts Nurses Association at the UMass Memorial and UMass University campuses have cast overwhelming votes to ratify respective one-year contracts that provide the nurses with needed staffing increases, a modest pay raise and a novel “Respectful Relationship†clause that the nurses hope will lead to safer care for patients and a more satisfying environment.