select id from editConference where ConfUrl = 'materialsscience.conferenceseries.com/europe/europe/2016/eposter/electrospun-silk-fibroin-meshes-combined-with-graphene-oxide-as-novel-biomaterials-for-tissue-r-nengineering-applications-materials-congress-2016' and up=1 ORDER BY id ASC select id from editConference where ConfUrl = 'materialsscience.conferenceseries.com/europe' and up = '1' ORDER BY id ASC