FRIDAY The World Council of Hellenes Abroad (SAE) begins its first meeting following the election of its new president, Stefanos Tamvakis, last December. To Sunday. Pensioners to stage a demonstration at 10.30 a.m. outside the Thessaloniki Labor Center, opposing the merging of social security funds. Protesters will later march on to the Macedonia-Thrace Ministry. The University of Athens starts a conference on «New School Textbooks and Changes in Minority and Public Education,» at 5 p.m. at the City of Athens Cultural Center. To Sunday. Tel. 210.368.8515 or log on to www.uoa.gr. The Nikos Poulantzas Institute hosts a conference on «Article 16 of the Constitution and Upgrading Public Universities,» at 10.30 a.m. at the Greek Journalists’ Union, 20 Academias. Synaspismos Left Coalition President Alekos Alavanos will speak. Tel. 210.321.7745 or log on to www.eppnp.gr. The first international exhibition on «Supply Chain and Logistics,» opens at the Old Athens Airport at Hellenikon. To Monday. Tel. 210.901.0040 or log on to www.supplychainexpo.gr. The International Relations Institute (IDIS) holds a conference on «A Common Foreign Policy for Europe,» at 9 p.m. in the amphitheater of the Foreign Ministry. Foreign Minister Dora Bakoyannis will speak. Tel. 210.331.2325-7 or log on to www.idis.gr. The Center of Renewable Energy Sources (CRES) is hosting a workshop on «Renewable Energy Sources Heating Systems,» at 9 a.m. at the cultural center of Megalopolis Municipality, Arcadia. Tel. 20.660.3384 or log on to www.cres.gr. SATURDAY Defense Minister Evangelos Meimarakis travels to Munich, Germany, to attend the 43rd Munich Conference on Security Policy. To Sunday. The Civil Servants’ Union (ADEDY) and the General Confederation of Greek Labor (GSEE) will participate in an anti-racism rally at 3 p.m. in Omonia Square in central Athens. The Hellas Pharm 2007 pharmaceutical congress and exhibition opens at the Helexpo fairgrounds in Maroussi. To Sunday. Tel. 210.522.1163 or visit www.fsa.gr. SUNDAY The new president of the World Council of Hellenes Abroad (SAE), Stefanos Tamvakis, meets with Macedonia-Thrace Minister Giorgos Kalatzis. The Organization for the Certification & Inspection of Organic Products (DIO) hosts a conference on «Organic Poultry in Greece 1999-2007» at noon at the International Exhibition Center in Thessaloniki. Tel. 210.822.4384 or log on to www.dionet.gr.