Head of the Casali Institute of Applied Chemistry and Casali Center of Applied Chemistry  (second term)                                                                                  

2012- 2016

Member of the Board of Governors and Member of the Management Committee Board of Directors of the Hebrew University (HU)                                            

2011–2014

Chairman of the Innovation Forum of the Israeli Food Association                       

2013–2016

Member of the Board of Directors and Board of Governors of
Hadassah Academic Collage, (HAC)                                                                                   

2011–present

Member of the HU Committee for Academic Program, Jerusalem, Israel            

2013–2014

Member of the Governing Council of the Hebrew University of Jerusalem            

2011–2014

Member of the Executive Committee of the Hebrew University of Jerusalem        

2010–2014

Incumbent of the Ratner Family Chair of Chemistry                                            

2010- present

Visiting Professor – Sabbatical leave at AgroParisTech, Massy, Paris, France      

2010
(June–Sept.)

Visiting Professor – University of Florence, Florence, and University of Urbino,
Urbino, Italy                                                                                                      

2010

Visiting Professor – Swiss Federal Institute of Technology ,ETH, Zurich, Switzerland                   

2010 (Nov.)

Sabbatical Leave, Faculty of Engineering, Columbia University,
NYC, USA                                                                                                                             

2010-2011
 

Senior Visiting Scientist – Sabbatical Leave, Department of Engineering,
University of Stony Brook,(SUNY), Stony Brook, Long Island, NY,USA                                                           

2006

Scientific Consultant and Visiting Professor – Sabbatical Leave at Archer Daniel Midland (ADM) Research Center, Decatur, IL, USA                                                                                 

2004

Visiting Professor and Sabbatical Leave at the Department of
Chemical Engineering and Biotechnology University of Hiroshima, Hiroshima, Japan

Oct 2003 –
Feb. 2004

Senior Consultant and Visiting Scientist – Archer Daniels Midland (ADM),
Research Center, Decatur, IL, USA

2003–2009

Visiting Professor – Department of Chemical Engineering and Applied Chemistry,
State University of New York (SUNY) at Stony Brook, Long Island, NY, USA.                             

2001

Senior Visiting Scientist, Sabbatical Leave at Nestle Central Research Labs,
Nestec, Lausanne, Switzerland                                                                        

1998–1999

Member – Board of Directors of the Holon Academic Institute of Technology (HIT), Holon, Israel        

1997–2008

Member – Advisory Board of Directors of the New York Polytechnic University, NYC, NY, USA                                                                                                  

1998–2000

Head – Graduate School of Applied Science and Technology,
The Hebrew University of Jerusalem

1990–1993

Sabbatical leave, Visiting Senior Scientist, Eastman Kodak Research Laboratories,
Rochester, NY, USA

1985–1986

Visiting Scientist, The Japanese Society for the Promotion of Scientists,
University of Hiroshima, Japan 

1984
(Summer)

Visiting Scientist, University of Pretoria and the South Africa "Wheat Board",
Pretoria, South Africa 

1983, 1986
(Summer)