List of Articles Migration.

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  1 - Analyzing the Regional and Global Consequences of Syria's Geopolitical Crisis (With emphasis on the crisis of refugees)
  hadi zarghani  
  The geopolitical crisis, to dispute and and countries conflict and political-spatial groups And political actors To control and seize one or more values And the geographical factor is called. Syrian crisis as a geopolitical crisis, While the sixth year (2017) it passes More

  The geopolitical crisis, to dispute and and countries conflict and political-spatial groups And political actors To control and seize one or more values And the geographical factor is called. Syrian crisis as a geopolitical crisis, While the sixth year (2017) it passes himself. According to the UN High Commissioner, The worst global crisis is in the past 25 years. . This crisis has many consequences and consequences, In various dimensions to Syria and to regional and trans-regional countries. One of the most important consequences, displaced more than half of the Syrian population of 23 million(About 13.5 million), Inside and outside the borders of this country. The present paper uses a descriptive-analytical approach and utilizes library data to seek to answer this question. The displacement of this massive population inside Syria And their invasion of What a consequence And consequence for them And host countries Has brought. . The findings of the research show that in the regional dimension and outside the region, respectively, countries: Turkey, Lebanon, Jordan, Iraq and Egypt, the European Union (Germany, Austria and Switzerland ...) and the United States, the main host of the Syrian refugees. Apart from the reaction (positive or negative) and the political exploitation of some of these countries (such as Turkey and Jordan), Each of them has somehow been affected by the crisis. . Therefore, in the overall assessment of this paper, the effects of the crisis on host countries in five dimensions: Social, economic, political, security and cultural is Analyze and explain. Manuscript profile
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  2 - Experimental modeling of migration in Shekarab active fault system (North Birjand)
  Mehdi Yosefi Mohammad Mahdi Khatib Ebrahim Gholami
  The Shekarab fault system, located in the north of the Birjand city, has fault scarps parallel to main fault. Due to the structural features, mechanism of fault trends in the region, fault-related folding and the occurrence of the migration from the north to the south a More

  The Shekarab fault system, located in the north of the Birjand city, has fault scarps parallel to main fault. Due to the structural features, mechanism of fault trends in the region, fault-related folding and the occurrence of the migration from the north to the south at Shekarab fault, modeling is done for the geometric pattern of the fault propagation, which is in accordance with the Shekarab fault zone. In this model, new scarps are formed in the footwall of the previous scarps. According to the results of modeling, the most important factor for creating alternate scarps is the north-south compression in the Shekarab thrust. At each step, by increasing the amount of shortening, the emergence of new faults are observed so that the first thrust is created on the northern side of the Shekarab zone and subsequent faults are created by increasing the amount of shortening up to a maximum of 58%, on the southern side of the zone and on the footwall of the previous faults. In this modeling, the slope of the thrusts is created in four stages of shortening varying between 60-65 degrees, which is comparable with the actual slope of the Shekarab faults of 70 degrees. According to the experimental results, the sequence of thrust creation in each modeling stage is consistent with the sequence of thrust in the Shekarab zone and with the north-south migration of the fault. According to the geometry of thrusts and back-thrust, the model of formation of structures in this fault zone is the foreland breaking sequence model so that the branches of the thrust originate from a point. Manuscript profile
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  3 - Internal Migration and Social Security: A Study On Relationship Between Internal Migration Patterns and Social Insecurity in Iran
  mahmoud moshfegh
  The aim of this paper is to study the relationship between internal migration patterns and environment-oriented social security factors by pathological approach. The research method is the secondary analysis of census data; universe of study contains 31 provinces of the More

  The aim of this paper is to study the relationship between internal migration patterns and environment-oriented social security factors by pathological approach. The research method is the secondary analysis of census data; universe of study contains 31 provinces of the country in year 2011.Based on the two percent census file, the sample contain 95093 migrated people. The theoretical framework of present article is social disorganization theory which extensively analysis the impacts of newly immigrants on the efficiency and ability of society for social controls. The results show that about 16 percent of the total internal migration, potentially pathological migrations (PMs). The destination of most PMs is Tehran, Hamadan, Razavi Khorasan and Alborz Provinces. Nearly 80 percent of PMs are between the 15 – 35 years old. Also, there was a significant positive correlation between PMs and the social environment insecurity index (r: 576, sig: 99. 9), But there was not a significant correlation between total net migration and PMs. According to the results, migration, by itself, not lead to the occurrence of social problems, but the quality of migrants and the mechanism of adaptation to the destination are contexts of social security. Manuscript profile
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  4 - A Multi-Objective Differential Evolutionary Algorithm-based Approach for Resource Allocation in Cloud Computing Environment
  Saeed Bakhtiari Mahan Khosroshahi
  In recent years, the cloud computing model has received a lot of attention due to its high scalability, reliability, information sharing and low cost compared to separate machines. In the cloud environment, scheduling and optimal allocation of tasks affects the effectiv More

  In recent years, the cloud computing model has received a lot of attention due to its high scalability, reliability, information sharing and low cost compared to separate machines. In the cloud environment, scheduling and optimal allocation of tasks affects the effective use of system resources. Currently, common methods for scheduling in the cloud computing environment are performed using traditional methods such as Min-Min and meta-heuristic methods such as ant colony optimization algorithm (ACO). The above methods focused on optimizing one goal and do not estimate multiple goals at the same time. The main purpose of this research is to consider several objectives (total execution time, service level agreement and energy consumption) in cloud data centers with scheduling and optimal allocation of tasks. In this research, multi-objective differential evolution algorithm (DEA) is used due to its simple structure features and less adjustable parameters. In the proposed method, a new approach based on DEA to solve the problem of allocation in cloud space is presented which we try to be effective in improving resource efficiency and considering goals such as time, migration and energy by defining a multi-objective function and considering mutation and crossover vectors. The proposed method has been evaluated through a CloudSim simulator by testing the workload of more than a thousand virtual machines on Planet Lab. The results of simulation show that the proposed method in comparison with IqrMc, LrMmt and FA algorithms, in energy consumption by an average of 23%, number of migrations by an average of 29%, total execution time by an average of 29% and service level agreement violation (SLAV) by an average of 1% has been improved. In this case, use of the proposed approach in cloud centers will lead to better and appropriate services to customers of these centers in various fields such as education, engineering, manufacturing, services, etc. Manuscript profile
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  5 - The Role of Inequalities in Migration from Iran's Border Counties
  Valiollah Rostamalizadeh Reza Nobakht
  The role of regional and spatial inequalities, especially the role of inequalities in the border areas of the country, has been given less attention in the issue of migration. Although Iran's border areas have strategic importance from economic, social, and political as More

  The role of regional and spatial inequalities, especially the role of inequalities in the border areas of the country, has been given less attention in the issue of migration. Although Iran's border areas have strategic importance from economic, social, and political aspects, and Ignoring paying less attention to these areas can have irreparable consequences in various sectors. This research aims to investigate the situation of Iran's border regions in terms of spatial inequalities and what effect these inequalities have on migration from these regions. In order to measure the spatial inequality among the border counties, the data of the general population and housing census of 2016 and other related findings have been used. Factor analysis has been used to weight and combine indicators and create spatial inequality. Arc Pro software was used for zoning and stratification of counties based on the dimensions of inequality and migration, and GWR statistical method was used to analyze the relationship between inequality and migration. The results show that inequality is higher in the eastern and southeastern counties compared to other places. Also, 66% of Iran's border counties have a negative migration balance. The geographically weighted regression model shows that 67% of the changes in the net migration variable are explained by independent variables, and based on the average value presented, the population structure factor and the economic factor have the greatest effect on the net migration in border counties. Also, the effectiveness of factors for migration is different in different regions of the country. Manuscript profile