مطالب

This paper explores the empirical evidence of the nature of intra-metropolitan supply linkages and industrial clustering and searches for the driving forces that enhances the learning processes and innovation capacities hence; contributing to competitive advantage within the Tehran metropolitan. The research points to accelerating growth in the automotive sector since the late 1980s and early 1990s which has been the driving force of the Tehran’s economy. This growth appears to be related to industrial clustering and systemic linkages with actors such as suppliers, sub-contractors and so on. The analysis of empirical evidences from the sample industrial cluster indicates a considerable number of interesting findings from strong degrees of industrial clustering. However, there are some weak evidences of industrial clustering such as weak institutional environment in the cluster.

During the last centuries, great religious traditions as well as prominent philosophical and theological schools have been facing the so-called "problem of evil" and trying to solve it in a reasonable and convincing way. This paper seeks to explore Muslim philosophers' approach to the problem and examine their proposed solutions for it. After the main versions of the problem in Islamic philosophy are briefly sketched, the author explains its view about the non-existential nature of evil. At this stage, he discusses the challenge of "apprehensional evil" and three reactions to it. Then he turns to three main solutions proposed by Muslim philosophers in order to meet three versions of the problem of evil, i.e., the problem of evils and God's decree, the problem of creation-dualism and the problem of evils and Divine wisdom.

This paper tries to systematically survey, with taking theoretical view on geomorphic basin and its changes into account. The purpose of this research is to determine the balance and stability of geomorphic basins from the past to present and then to future. Consequently, it tries to determine the balance between energy and input-output materials for example (rainfall , solar radiation, tectonics and neotectonics …) to the basin based cybernetics (including geomorphic, topographic and geological state) and also to calculate energy and material balance considering positive and negative entropy at basin level. Based on the findings, which is the outcome of cybernetic resultant between form and process in basin, we can determine stability and type of balance in the basin. In this paper, emphasis has been put only on rainfall (express of the energy exponent). However, it first discusses Kor Basin Geomorphic locations and Energy-Material Entropy on its surface and then Quantity form of energy (Isolated & Potential Energy). Considering geomorphic state of the basin, we can determine the best planning method from all systems (planning, risk management and crisis management) for basin that neither requires a great cost nor causes disturbance in stability and geomorphic balance while being the optimal process. In Kor geo planning, we are encountering and determining two dimentions: (Y dimension, for geomorphic change for example throughput topogeraphy geradient formations on Kor Basin and X dimension, for rainfall discharge range on Kor Basin rivers out let only and only on fiat paper surface), but in Kor geo management, we represent at least three – dimensional ordered, for example topogeraphy gradient for Y coordinate and rivers discharge quantity for X coordinate and absolution geography location (for space point Z coordinate). Consequently, Kor River Basin can be studied based on two scientific metod : I . Planning & II , Management .