IT:

May 2001:

Greek Open University: «1st Panhellenic conference on open and distant learning», Rio Patras. Presentation of the project «Quali_Learn» of the TEI of Athens, with a live connection between the conference venue in Rio and the TEI of Athens.

October 1999:

4th Panhellenic conference with international participation: «Teaching of Mathematics and Informatics, in Education». Rethimno. Presentation of the project «Quali_Learn» of the TEI of Athens.

May 1997:

ENCRESS ’97 – 3rd International Conference on Reliability, Quality and Safety of S/W-Intensive Systems. IFIP TC5 WG5.4, Athens.

March 1996:

ECBS ’96, Symposium and Workshop on Engineering of Computer Based Systems, IEEE, Friedrichshafen, Germany. Presentation of the  research project «Reuse Concepts and a Reuse Support Repository».

December 1993:

4th Panhellenic conference on Informatics, GCS, Rio Patras. 9th session: “Information Systems ΙΙΙ”, presentation of project “ATLAS: Design and implementation of a 2nd generation CASE tool”.

March 1991:

3rd Panhellenic conference on Informatics, Greek Computer Society, Athens.

IT in Healthcare:

July 5 – 7, 2013:

International conference on Informatics, Management and Technology in Healthcare, Athens, Hellas. Presentation of 7 publications.

May 28, 2013:

Digital media and Children. University of Athens, Research Institute of Applied Communications

May 22 – 25, 2013:

C. Mammas, S. Geropoulos, S. Ziogas, Ch. Lemonidou: «The electronic environment of telemedicine systems, in transplant coordination». 39th Panhellenic Medical Conference, Athens.

November 2012:

Mammas Constantinos St, Lappas Demetrios, Kottis George, Kostopanagiotou Georgia, Mandelos George, Geropoulos Spiros, Lymperopoulos Demetrios, Skandalakis Panagiotis, Smyrniotis Vasileios (2012): “Constructionand application of expert leaded medical protocols for OTE-TS in the coordination process as a method to optimize quality in organ transplantation: The virtual benching of the liver before transplant”. Presentation at the 28th Panhellenic Congress of Surgery and International Forum, Athens, Hellas.

June 15-18, 2011:

C.S. Mammas, G. Kottis, C. Nikolaou, N. Arkadopoulos, G.Kostopanagiotou, A. Pafiti, N.Kavantzas, C.Tiniakou, I.Dontas, A. Analitis, S. Geropoulos, V. Smyrniotis (2011): "Systemic and regional liver’s inflammatory response after open and laparoscopic left partial hepatectomy". Oral Presentation in the 19th International Congress of the EAES, Torino, Italy.

May 13, 2011:

Electronic Health Services. University of Piraeus, Department of Digital Systems.

November 24-27, 2010:

C.S. Mammas, G. Kottis, N. Arkadopoulos, G. Kostopanagiotou, I. Donta, S. Geropoulos, V. Smyrniotis (2010): Ergonomics of the Open and Laparoscopic Left Partial Hepatectomy. Video presentation, 27th Panhellenic Congress of Surgery, International Surgical and international Forum 2010, Hellenic Association of Surgery. Athens, Hellas.

May 2007:

HL7 Hellas: 2nd Panhellenic scientific conference. Subject: «HL7: interoperation in action», Athens.