Geographic Information Science focuses traditionally on spatial information of geographic scale and associates this per default with outdoor environments. Systems, databases and models are designed for this primary purpose. In this paper, the author discusses the geographic information requirements in indoor environments and, in particular, their differences to ‘outdoor’ geographic information....

With the rapid progress of spatial information services and ubiquitous computing technologies, the space that we are dealing with is no longer limited to outdoor space but being extended to indoor space. Indoor space differs from outdoor space, which makes it difficult to realize spatial information services for indoor space. In order to extend the scope of spatial information services to indoo...

BACKGROUND Myopia has become a significant global public health concern, and is highly prevalent worldwide especially in Asian countries. It is associated with genetic factors as well as socioeconomic status; however, the underlying cause for school myopia has not been established. This study evaluates the impact of living environment on school myopia in Chinese school-aged children. METHODS ...