Awareness of the effects of fire on various aspects of an ecosystem after the fire,is important for range management. Changes in soil physical and chemical propertiescaused by fire can be the cause of changes in the vegetation. In this study, effects of fire onphysical and chemical characteristics of soil were investigated. This research was carriedout in a randomized block design method in the...

the analysis of natural and cultural factors in the contexts of an archeological site would reveal the processes constituting the event of settlement after the formation of cultural layers. in other words with the study of cultural processes, we seek the information and patterns which cause formation, shaping, and unevenness of the site to its present shape. in this regard, the initial studies ...

The question of the sustainability of IT-dependent com considerably less attention, and much of that attention ha assumption usually underlying this pessimistic view is that sustainable competitive advantage because competitors ca replicate virtually any of its applications. We suggest inst quest for sustainable competitive advantage risks oversimp potential strategic contributions of advanced ...

The immediate aftermath of Katrina focused the world's attention on the vulnerability of the urban poor and racial/ethnic minority groups in New Orleans. This vulnerability can be viewed in terms of site, the proximity of a neighborhood to a hazard, and situation, the social context of that neighborhood. Vulnerabilities, associated with demographic characteristics such as being poor, being a me...