what is called the problems of tehran metropolis now a days, is deep- rooted in the policies ofurban planning in our country. since not far past up to now, immigration from all over the country to tehran, irregular growth of urban population, inconsistency with urban infrastructure development, environmental pollution and low quality of living areas, erosion of self -growing fabric in most area...

Today we are confronted with an enormous variety of formal software engineering approaches and tools. Among these are many that address the critical early stages of software development. However, only little attention has been paid to the integration of different specialised approaches and to the overall development process. In this paper we present a technique for formal requirements analysis ...

The introduction of alien fish species in wetland ecosystems could have a great impact on freshwater communities and ecological processes. Despite has been noticed as one the principal cause extinctions, ecosystem processes alteration, change aquatic community assemblage, very few data about reptiles are available. As study model we used two neighbour sub-populations endangered Sicilian pond tu...

In the scope of higher education internationalisation, Portuguese universities have been receiving an increasing number students from Portuguese-Speaking countries, namely African at level PhD studies. As highlighted in research, pursuing a overseas context entails critical challenges for students, supervisors and institutions. Against this background, paper reports on faced by international at...