The majority of flooding in cities occurs while raining because of the cities' uncontrolled growth of population and their pattern of settlements, haphazardly sprawling urbanization, their inadequate and faulty drainage, and also due to absence of scientific waste management. A proper example of...

The rational use of fish stocks and increase their productivity is one of the most important and urgent problems of fisheries. One of the important areas in the fishing and for the reproduction of fish on the west coast of the Caspian Sea is the basin of the Terek River. For long period (over 40...