1. Regular Associate of the
International
Centre for
Theoretical Physics,
Italy.
2. Member of the American
Association
for the
Advancement of
Science
(AAAS) by a special invitation.
3. Team Member of Dust Plasma
Interaction
in Space,
ISSI, Bern (Switzerland).
4. Member of the Organizing
Committee:
Conference on
Plasma
Physics:
New Horizons in Plasma Physics, 03-07
September
2001,
Faro, Algarve (Portugal).
5. Member of the Edinburgh
Mathematical
Society (EMS),
Edinburgh,
Scotland,
UK.
6. Life Member of the
Bangladesh
Association for the
Advancement of
Science.
7. Life Member of the
Bangladesh
Physical Society (BPS),
Dhaka,
Bangladesh.
8. Member of the Programme
Committee,
International
Topical
Conference
on Plasma Physics: New Horizon in
Plasma
Physics,
03-07 September 2001, Universidade de
Algarve, Faro,
Portugal.
9. Member of the International
Advisory
Committee,
International
Topical Conference on Plasma Physics:
Complex
Plasmas
in the New Millennium, 08-12
September
2003,
Santorini Island, Greece.
10. Appointed the Faculty
Opponent
in a Ph. D. Defense,
20
October
2003, Faculty of Engineering Sciences,
Umea
University,
Sweden.
11. Member of the 4th
International Advisory
Committee,
International Conference on Physics of Dusty Plasmas
(ICDP4): 13-17 June 2005, Orleans, France.