Principles of HACCP (Workshop). Conducted by Pennsylvania State University and certified by the International HACCP Alliance, in West Chester, PA (USA). From 25 to 27 September 2012.

World Food Prize (2012). Iowa state (USA), 16-20 October, 2012

Allegheny Branch American Society for Microbiology (ABASM), Program for the Annual Fall Meeting, hosted by Pennsylvania State University- University Park (USA), November 9th and 10th, 2012

Revolution of Nanotechnology (Workshop). Egyptian National Commission for UNESCO. From 27-29 November 2011. Cairo, Egypt.

International Conference & Exhibition on "Total Quality Management of Herbs & the Medicinal Plants & their products" Packaging Technologies System for Enhancing the Exportation. December 6-8, 2011. Cairo, Egypt.

The second scientific conference of the Association of Agricultural Chemistry and Environmental Protection (climatic changes and their effects on health and the environment) 25 to 28 March 2008.