background: gliomas are the most frequently observed primary brain tumors. these tumors comprise a variety of different histological tumor types and malignancy grades. oligodendrogliomas typically contain a rich network of branching capillaries. approximately 50%-80% of oligodendrogliomas demonstrate a combined loss of chromosomes 1p and 19q. oligodendrogliomas differ from neurocytomas in that ...

in the present time, phenomenon like globalization, regionalism and economic integration are the basic issues which bring many positive consequences to the world economy. regionalism and economic integration are one of the ways that developing countries can adopt to collate the globalization process. to acknowledge their own abilities or, to settle the commercial and economic disputes in their ...

abstract the objective of the present study is to assess the performance of 18 irrigation districts from ten countries in the world using the benchmarking method and data mining analysis (cluster analysis). irrigation networks of dez, sefidrood, tajan and voshmgir from iran have been compared with 14 irrigation districts from nine other countries. the k- means algorithm was used to analyze the ...