Contents: Opening Session (A Zichichi, T D Lee, D R Scott & R G Will); AIDS and Infectious Diseases OCo Medication or Vaccination for Developing Countries (G Gray, P Van De Perre, G Biberfeld, A A Lindberg, M Klein & G De Th(r)); Missile Proliferation and Defense (A Piontovsky, G H Canavan, R K Huber & V J Sundaram); Tchernobyl OCo Mathematics and Democracy (V Kukhar & Z R Rudzikas); Transmissible Spongiform Encephalopathy (D Heim, H Budka & A Smith); Floods and Extreme Weather Events OCo Coastal Zone Problems (D Scavia, D Dorogan, D Danut, D Boesch & P M Douglas); Science and Technology for Developing Countries (H Alper, G Knies, T J Gilmartin, W A Barletta & D W Mulenex); Water OCo Transboundary Water Conflicts (A T Wolf, K C Sivaramakrishnan, D S Brookshire, J Chermak & M Ewers); Climatic Changes OCo Global Monitoring of the Planet (G Marland, T Boden, K Gurney, J Orear, B L Myers, E Teller, C Leith, G Canavan & L Wood); Information Security (A Lehman, A Kroutskikh, D S Chereshkin & T L Thomas); Pollution in the Caspian Sea (I Salihoglu, H Ghaffarzadeh, E uzsoy, I V Mitrofanov, A Vasiliev & R Ajalov); Permament Monitoring Panel Reports (S Sorooshian, R A Clark, G De Th(r), J M Greenberg, W F Huebner, A Piontovsky, H Wegener, R C Ragaini, V P Kukhar, G I Palshin, H Schubert & W Sprigg); Transmissible Spongiform Encephalopathy Workshop (P Piccardo, B Ghetti, F Tagliavini, O Bugiani & R G Will); AIDS and Infectious Diseases Workshop (G Biberfeld, A A Lindbergh & S Tlou); Pollution Workshop (R Ragaini, I Salihoglu, H Ghaffarzadeh, L Shabanova, E uzsoy, Y N Zhimbey, I V Mitrofanov, R Ajalov, A Korshenko & A Vasiliev). Readership: AIDS researchers, immunologists, ecologists, meteorologists, physicists and social scientists."