Prime Minister Costas Karamanlis to attend European Council meeting in Brussels. To tomorrow.

The 16th Journalism conference on “Mass Media - Digitalization” begins at 8.30 p.m. in Samothrace. To Sunday. Tel. 25510.368.23.

An international conference on “The Challenge of Learning Transfer” begins at 8.30 p.m. at the ATExcelixi premises in Kastri. Tel. 210.629.1201 or log on to www.atexcelixi.gr.

The Aristotle University of Thessaloniki hosts a conference on “Women in the History of Balkans,” starting at 6 p.m. in the University’s central library. To tomorrow. Tel. 2310-997.158 or log on to www.auth.gr.

The General Confederation of Greek Labor (GSEE), the Civil Servants Union (ADEDY) and consumer organizations will hold a demonstration at 7.30 p.m. in Syntagma Square to protest inflation and excessive price increases.

World Refugee Day. An event titled “Meeting Refugees,” which includes a photo exhibition, concert and documentary screening, begins at 6 p.m. on the Apostolou Pavlou pedestrian precinct. Tel. 210.520.5200 or log on to www.praksis.gr.

The President of the Coalition of the Radical Left (SYRIZA), Alexis Tsipras, will attend a meeting of the European Left Party in Paris. To Saturday.

The National Hellenic Research Foundation is hosting a lecture on “A Life in Science - Science, Technology and World Affairs as Viewed by a Scientist,” by Professor John C. Polanyi of the University of Toronto. At 7.30 p.m. at the foundation’s premises. Tel. 210.727.3792 or log on to www.eie.gr.

The ninth Peloponnesian Dental Congress begins in Tripolis and will run through Sunday.

The second international experts’ meeting on “Advanced Laparoscopic Surgery” begins at the Medical and Biological Research Foundation of the Athens Academy in Papagou. To Sunday. Tel. 210.659.7000 or log on to www.e-laparoscopy.gr.

The NGO Nifalioi hosts a conference on “The Science of Addiction: From Neurobiology to Treatment,” starting at 10 a.m. at the Media Press Center of the Health Ministry. To Sunday. Tel. 210.685.2680 or log on to www.nifalioi.gr.