Social sciences (2) Research (2) Nature (2) Ciencias sociales (2) Naturaleza (2) Investigación (2) Programs (1) Variations (1) Trials (1) Tourism--Government policy (1) Tourism (1) Primitive societies (1) Sea level (1) Science (1) Production (Economic theory) (1) Political science (1) Matter (1) Knowledge, Theory of (1) Human capital (1) History (1) Fishing (1) Fate and fatalism (1) Experience (1) Education, Higher (1) Education (1) Dependency (1) Cyclones (1) Creation (1) Collective settlements (1) Climatology (1)