BACKGROUND Geographic range is a good indicator of extinction susceptibility in fossil marine species and higher taxa. The widely-recognized positive correlation between geographic range and taxonomic duration is typically attributed to either accumulating geographic range with age or an extinction buffering effect, whereby cosmopolitan taxa persist longer because they are reintroduced by dispe...

We retrieved topics that contained the geographic and temporal information at NTCIR-8 GeoTime task. Employing morphological analysis, temporal and geographic information are extracted from GeoTime collection. The index that represents a geographic hierarchy is made from the geographic information. In the experiment, we confirmed that the effect of the geographic hierarchical index when topics i...

the geographic distribution of astragalus l. (fabaceae) was analyzed using a database of 12377 geo-referenced observations. in the old world (including asia, africa and europe) there are ca. 2900 euploid species classified in 166 distinct sections. in this study using geographic information system (gis) by means of diva-gis (ver. 4) distribution map of some more important sections in the old wo...

The research presented in this paper introduces the principles of a multi-dimensional contextual approach for adaptive GIS. The framework makes the difference beetween the user, geographical and device contexts. The geographical context is modelled according to the location of the user, the region of interest, the extent of the region covered by the diffusion of the data, and the place where th...

A study of the spatial and temporal changes in land use and land cover (LULC) was conducted using Remote Sensing and GIS. We analyzed the LULC of Bharathapuzha river basin, south India using multispectral LANDSAT imageries of 1973-2005 time periods. 31% depletion in the natural vegetation cover and 8.7% depletion in wetland agriculture area were seen in the basin during the period. On the other...

OBJECTIVES/HYPOTHESIS To determine whether there is an association between the geographic location of an applicant's undergraduate school, medical school, and residency program among matched otolaryngology residency applicants. STUDY DESIGN Observational. METHODS Otolaryngology residency program applications to our institution from 2009 to 2013 were analyzed. The geographic location of each...

Статья посвящена крупномасштабному исследованию пространства малого города. Объектом исследования стал город Нелидово Тверской области. Для дательного и всестороннего анализа была использована концепция социально-географического пространства. В работе проанализировано размещение разных типов городской застройки. Проанализировано взаиморасположение ареалов повышенной концентрации населения объек...