select d.department_des from member m,department d,grouping g
               where 
 	             m.member_type_code = 'INSTITUTE'
                 and d.institution_id = m.cnav_member_id  
                 and g.parent_group_id = v_psgmid  
                 and g.entity_id(+)= d.department_id
                 and g.entity_id is null
                 and g.generation_sequence = 1;