Professor - PEC/COPPE/Universidade Federal do Rio de Janeiro

Professor, Zhejiang University, Research Professor at University of Southern California, also

International Centre for Bamboo and Rattan

Emeritus full Professor, PUC-Rio

Department of Architecture, Cambridge University

Head of Unit, FRIM

Kangwon National University

University of British Columbia

Chinese Academy of Forestry

Professor, Department of Botany, Panjab University, Chandigarh, India