THURSDAY Prime Minister Costas Karamanlis to meet with Finance Minister Giorgos Alogoskoufis at 10 a.m. President Karolos Papoulias to meet with the special representative of the International Organization of Francophonie, Henri Lopes, at 2 p.m. Culture Minister Michalis Liapis to chair the Euro-Mediterranean Cooperation culture ministers’ meeting at Zappeion Hall. To tomorrow. The president of the Coalition of the Radical Left (SYRIZA), Alexis Tsipras, visits Ioannina prefecture. The first exhibition on organic products, «Biologica 2008,» opens its doors at the Helexpo fair grounds in Thessaloniki. To Sunday. For further information, call 2310.291.201 or log on to www.helexpo.gr. The summer holiday exhibition «Summer Holidays Expo 2008» begins at the Helexpo fair grounds in Thessaloniki and will run through Sunday. Tourism Minister Aris Spiliotopoulos will open the exhibition. For details, call 2310.291.293 or log on to www.helexpo.gr. The Panhellenic Federation of Public Hospital Workers (POEDHN) holds a five-hour work stoppage from 10 a.m. to 3 p.m. demanding better pay and more staff. The Athens Institute for Education and Research holds an international conference on «Sports: Economic, Management, Marketing and Social Aspects,» in collaboration with the Panhellenic Association for Sports Economists and Managers. The conference will take place at the Kaningos 21 hotel. For details, call 210.363.4210 or log on to www.atiner.gr. FRIDAY The Athens University of Economics and Business is hosting the fourth international conference on «Human Resource Management in Europe: Trends and Challenges,» starting at 9 a.m. at the Athens Park Hotel. For further details, log on to www.aueb.gr. SATURDAY The General Secretariat for Youth is hosting the second two-day conference on «Reinforcing Local Youth Councils,» at Ioannina prefecture. For details, log on to www.neagenia.gr. The Public Power Corporation (PPC) and the National Technical University host a two-day conference on Kythnos on the island’s hybrid autonomous system for the island’s wind park. To Sunday. For details, log on to www.dei.gr.