background: using spatial analysis tools to determine the spatial patterns of china province-level perinatal mortality and using spatial econometric model to examine the impacts of health care resources and different socio-economic factors on perinatal mortality. methods: the global moran’s i index is used to examine whether the spatial autocorrelation exists in selected regions and moran’s i s...

The physical and spatial expansion of cities, which often taken place without planning, caused numerous environmental, health, economic social problems. This study investigates the physical, spatial, demographic development Ilam city in Iran for over 60 years. To achieve these goals, library studies, data analysis, field studies were applied. process its changes from 1956 to 2016 has been prese...

Internet development holds the promise of transmitting economic value across physical space at zero marginal cost. In such a “weightless economy”, what factors matter for the location of economic activity and thus for economic development? This paper sketches a model of spatial dynamics over a three-dimensional globe, where transportation costs don’t matter. The paper develops conditions under ...

the informal settlements are those parts of city which have been formed without plan or minimum facilities and services. therefore, they are considered as priorities in management cities for services and improving quality of life. in this regard, it is important to get solutions to make positive changes with the lowest cost and direct intervention. therefore, this study aims to explore the link...

java is an object-oriented program that has abundant open-source libraries for application development and 3d model rendering. spatial database is the database that can efficiently store and manage geographic information data though various spatial data management techniques. this paper explores the rationale of coupling java with spatial database to develop an effective platform for future bui...