▁ 1 9 9 0 ▁at ▁the ▁H umb old t - Univers ität ▁Berlin ▁the ▁Institute ▁for ▁Social ▁E col ogy ▁and ▁worked ▁here ▁from ▁ 1 9 9 0 ▁to ▁ 1 9 9 8 . ▁In ▁ 1 9 9 3 , ▁together ▁with ▁his ▁friends ▁and ▁with ▁the ▁support ▁of ▁the ▁Sax on ▁Prime ▁Minister ▁Kurt ▁B ied enk opf , ▁he ▁founded ▁the ▁so cio - ec ological ▁model ▁project ▁Lebens G ut ▁in ▁P omm ritz . ▁After ▁the ▁death ▁of ▁Rudolf ▁Bah ros , ▁he ▁transferred ▁the ▁Institute ▁for ▁Social ▁E col ogy ▁to ▁this ▁place . ▁ ▁In ▁addition ▁to ▁the ▁management ▁of ▁this ▁inst itute , ▁he ▁is ▁a ▁professor ▁for ▁Cultural ▁Philosoph y ▁and ▁Trans formation ▁Research ▁at ▁the ▁University ▁of ▁Z itt au / G ör l itz ▁since ▁ 2 0 1 2 . ▁There ▁he ▁established ▁together ▁with ▁other ▁scient ists ▁a ▁research ▁group ▁for ▁transformation ▁sciences . ▁ ▁Research ▁ ▁In ▁ 1 9 9 9 , ▁H os ang ▁published ▁the ▁book ▁" H omo ▁s api ens ▁integr alis , ▁Trans dis cipl inary ▁Term s ▁for ▁S ust ain able ▁Development " ▁( in ▁German ▁published ▁with ▁the ▁tit l ▁" Der ▁integra le ▁M ensch ") ▁at ▁the ▁H umb old t - Univers ität ▁Berlin . ▁and ▁became ▁one ▁of ▁the ▁first ▁German ▁scient ists ▁in ▁the ▁new ▁field ▁of ▁research ▁in ▁social ▁e col ogy . ▁He ▁received ▁the ▁degree ▁of ▁Doctor ▁hab