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Joseph Mitola III: Cognitive radio is a decision-making layer at which "wireless personal digital assistants and the related networks were sufficiently computationally intelligent about radio resources, and related computer-to-computer communications, to detect user needs as a function of use context, and to provide radio resources and wireless services most appropriate to those needs" - Simon Haykin: "Cognitive radio is an intelligent wireles...

The marshes of Mesopotamia at the southern part of Iraq, the largest wetland in the middel east, represent a unique component of our global heritage. The area of marshes fluctuated between 15, 000 to 20, 000 square kilometers. The marshes cut across three Iraqi southern provinces: Misan, Dhi-Qar and Al-Basrah. The heartland of the marshes comprised three principal areas Al-Hammar, The Central and Al-Hawaizah marshes. During the last decades th...