The Hexi corridor region lies in the arid and semiarid regions of Gansu Province, China. The sensitive ecological environment has undergone severe desertification caused by natural environmental change and unsustainable exploitation of the region. Remote sensing and GIS are being used to study...

Analyses of flood disasters were conducted using 1950–2001 data on the flood-damaged areas of cropland, the annual number of flood disasters and the direct economic losses in Xinjiang. There is an increasing trend in flood disasters in Xinjiang during the second half of the 20th century,...

An organization exists for a certain purpose, to produce cars, to borrow money, to offer shelter during the night. The mission or its certain purpose is clear from the beginning. In time, the organization leaders might lose interest in their mission or the mission may become irrelevant on a...

Coastal areas play an important role in the socioeconomic development of the coastal zones based on the different land uses. These regions are vulnerable to hydrogeological hazards and are seriously affected by coastal erosion, saltwater intrusion in the phreatic aquifer, and sea level rise,...

The coastal zone, the interface between the sea and the land, has a variety of characteristics, such as resource abundance, multiple services, ecological fragility and frequent occurrence of disasters. It has been under tremendous pressure from human activities, especially increasing sea...

The Akşehir and Eber Lakes, relatively shallow, small freshwater lakes with an area of 361 km<Superscript>2</Superscript> and 150 km<Superscript>2</Superscript> and average depth of 7 m and 2 m (1998), respectively in southwestern Turkey, have experienced a severe decline in water levels in recent decades. This study aimed to investigate...</superscript></superscript>

The key idea of this model is that firms are the result of an evolutionary process. Based on demand and supply considerations the evolutionary model presented here derives explicitly Gibrat’s law of proportionate effects as the result of the competition between products. Applying a...