Regional push derives from the geographic agglomeration of economic activities, and is expressed in increments to national productivity. Various pieces of statistical evidence in favour of the existence of regional push effects in lowand middle-income economies are marshalled. The origins of these effects in different sorts of externalities and increasing returns to agglomerative scale and scop...

the object of the regional planning is optimum use of resource for the development of regions. one of the most important items in regional development is the recognition of spatial and economical structure of the region. middle sized cities, have the secondary role in the study of economical structure of the regions. global experiments demonstrate that lack of attention to the role of secondary...

Computational models of goal recognition hold considerable promise for enhancing the capabilities of drama managers and director agents for interactive narratives. The problem of goal recognition, and its more general form plan recognition, has been the subject of extensive investigation in the AI community. However, there have been relatively few empirical investigations of goal recognition mo...

1 Coordinator, Vaccines Assessment and Monitoring, Department of Vaccines & Biologicals, World Health Organization, Geneva, Switzerland. Correspondence should be sent to this author (e-mail: [email protected]). 2 Immunization Advisor, World Health Organization, Kampala, Uganda. 3 Global Alert and Response, Department of Communicable Disease Surveillance and Response, World Health Organization...