Hellenic Social Forum, immigrant and anti-racism groups hold a rally in Syntagma Square.

University of Athens, in cooperation with the Research and Training Institute of the Eastern Aegean, holds a conference on «Information and Communication Technologies in Health» at the institute's premises on Samos. Health Minister Nikitas Kaklamanis to make the opening speech. To Saturday. Tel. 210.645.9812, 22730.945.37 or log on www.ineag.gr.

Fifth Digital World Forum on «Helping Boost Competitiveness for Growth in Greece and Southeastern Europe,» at the Divani Caravel Hotel in Athens. Tel. 210.240.2388.

University of Patras hosts international conference on «Integration of Renewable Energy Systems in Building Structures,» at Patras's technical college. To Sunday. For details see www.teipat.gr.

The National Documentation Center hosts a one-day conference on «Life Sciences. Genomics and Biotechnology for Health,» in Athens at the National Research Center, 48 Vas. Constantinou, and in Thessaloniki tomorrow at the university library. For information, tel 210.727.3920-1, or log on www.ekt.gr.

Interior Minister Prokopis Pavlopoulos visits Lesvos to attend the ninth assembly of the general secretaries of the country's 13 regions. To Saturday.

The Hellenic Association of Travel and Tourist Agencies, in cooperation with Thai Airways, organizes a workshop at the Metropolitan Hotel, between Greek and Thai tourist agents. For information, tel 210.922.3522 or log on www.hatta.gr.

Association of European Journalists, in cooperation with the Institute for Journalism Studies and Research (IDME), holds a conference on «Development: Economy and Culture,» at the cultural center in Amfissa Prefecture. Deputy Environment Minister Stavros Kaloyiannis and Deputy Culture Minister Petros Tatoulis to speak. To Sunday. Tel. 210.674.8713 or 210.363.3427.