فهرست مطالب امین سهرابی

The scientific definition of geopolitics can be explained in the form of a combined concept in which the three main elements of geography, power and politics are inherent. The Oman Sea region is one of the regions with a geopolitical position that plays a very important role in the military and economic equations of the world. The main purpose of this article is to analyze the geopolitical rivalries of regional and international powers on the shores of the Oman Sea and its effect on Iran's development. The main question of the article is what are the most important regional and trans-regional competitors on the shores of the Oman Sea and what effect will these competitions have on Iran's development? The method of this article is qualitative and the required data of the article have been collected by the library method. The method of data analysis is also descriptive-explanatory. The results of the article show that the Oman Sea region due to its proximity to the Makran region and the Persian Gulf, as well as the Strait of Hormuz and of course having cultural geopolitical components has been the arena of competition between regional and global powers and has secured the development of regional countries

With the end of the Cold War, the indicator of strategic power is no longer military power because we are entering an age that direct confrontation, which requires the support of the military, there will be no chance. Political scientists and international relations think that economic power determines the national power of states. Today, therefore, national power is directly related to the understanding of the concepts of the national economy. The Middle East region has also witnessed numerous conflicts and challenges during this period that requires a model for de-escalation and regional integration. The main purpose of this paper is to analyze the conflicts in the Middle East region from the perspective of geoeconomic components. The main question of the article is that what are the most important economic and geographical indicators and components that are effective in creating and sustaining tensions and conflicts in the Middle East? The methodology of this paper is descriptive-analytical where using library resources as well as scientific research articles the research topic will be explained and analyzed. The hypothesis that we are looking at in this article is that economic and geographical determinism in the Middle East due to heterogeneity, turbulence and strife and the underdevelopment of the components of human geography has more decisive power in the outbreak of conflict. the results of this paper show that economics, geography and politics in the Middle East has always been the site of conflict between regional and trans-regional powers and groups.

Adsorption of lead metal ion [Pb(II)] from aqueous samples was investigated using polyethersulfone (PES)/amine-functionalized carbon nanotubes (NCNTs) via changes of pH, stirring speed, contact time, adsorbent content and initial metal ion concentration. The FTIR and EDX results for the modified sample showed that the first type amine groups (N-H2) and the second type amine groups (N-H) were located on the CNT surface. The SEM images also showed CNTs structure change, their breaking down followed by providing more order. The rate of ion adsorption by the nanocomposite sample showed that the kinetic equilibrium of adsorption occurred within the first 10 min of contact time. To maximize the metal ion removal, the amounts of nano-adsorbent, pH and initial ion concentration were determined 0.1 g/100 mL aqueous sample, 7, and 95 ppm, respectively. Also, the Freundlich isotherm model and the pseudo-second order kinetic model had the best correspondence with the experimental data.

The adsorption process modeling of Methylene Blue dye (MB+) on the modified tea waste (TW) with anionic surfactant (SDS) was performed by the artificial neural network. The FTIR and EDS analyses were used to investigate the presence of SDS molecules on the adsorbent surface and it was determined that the SO3- anions help to MB+ adsorption by the ion exchange mechanism. The adsorption isotherm data were fitted to Langmuir and Freundlich isotherm equations and the Langmuir adsorption capacity (Qmax) was calculated respectively, equal to 124.3 and 156.2 mg/g for TW and STW. It was observed that the adsorption kinetics of MB follows the pseudo-second-order kinetic model. The findings of this investigation suggest that physical adsorption also plays a role in controlling the sorption rate of MB. The feedforward ANN model with 5 input parameters and one hidden layer having 15 neurons was designed to predict the adsorptive behavior of sorbents, and it was observed that the model is able to predict the MB removal percentage for the test data series with great R2>0.97.

Medical science education has special characteristics due to the need for diverse learning areas in the wide range of health and disease. This study was conducted with the aim of Environmental analysis and providing effective strategies for the development of medical education at a military medical faculty.
This cross-sectional study was conducted in 2016 which the SWOT model and review of internal factors (strengths and weaknesses) and external factors (opportunities and threats) was used. Participants included 42 members of the scientific board, experts and stakeholders of a military medical faculty in Iran with purposive sampling. Data collection was performed by reviewing documents, focus group discussions and standard strategic planning questionnaires. Data was analyzed using content analysis and descriptive statistics in TOWS model.
The score of internal and external factors of the faculty was determined by 12 effective strategies for the development of medical education. Strategies included: quantitative and qualitative transformation of educational programs and promotion of the top scientific and educational status in the country and the region; becoming a scientific and educational center in the fields of basic sciences, clinical medicine and military medicine; and development of disciplines and educational levels with new trends and interdisciplinary sciences.
Based on the results of the evaluation and environmental analysis of the medical faculty in the field of medical education, the strategic position of the faculty is competitive. Therefore, this faculty needs to make more efforts to achieve a desirable situation through development-driven strategies.

Researches’ needs assessment has a great contribution in the research planning process. This research has been carried out for the needs assessment and prioritization of strategic researches in the field of scientific development of a medical faculty in Iran.
This research is a mixed study that was conducted in two qualitative and quantitative phases, and was completed in 2016. The research sample consisted of strategic documents, 9 policy makers, 31 managers of educational groups and 12 stakeholders from a medical faculty in Iran who were selected by a purposeful sampling method.The data of the qualitative section were gathered through reviews, analysis and documentation analysis and group interviews were done and analyzed by content analysis method. The Analytic Hierarchy Process (AHP) was used to rank the criteria and the TOPSIS technique was used to rank the titles.
By analyzing the qualitative phase data, 48 research topics were identified in four strategic axes. . In the quantitative phase, the first priorities of the research were based on the evaluation of experts and policy makers of the faculty determined and included: providing solutions for maintaining human capital (with a score of 0.713) in the human capital axis, the need for the assessment of the fields and sections required based on the organizational needs and stakeholders (with a score of: 0.769) in the education and training of students, evaluating and assessing the required scientific-educational poles (with a score of 0.761) in the knowledge generation axis and the identification of priority areas was obtained based on the mission of the faculty (with Score: 0.746) governance of the faculty.
The research topics prioritized in this study (within the framework of the strategic goals of the faculty) can realize the perspective of its scientific development and make the dynamism necessary for its mission.