نتایج جستجو برای: regional and international scales
تعداد نتایج: 16913887 فیلتر نتایج به سال:
evaluation of spatial structure of zanjan growth with emphasis on land use/cover changes (1975-2005)
the complexity of urban systems in our recent world, make it difficult to evaluation and explanation of their changes with traditional and customarily methods. in the past, remote sensing has shown an ability to detect and describe urban growth patterns at different spatial scales. with new remote sensing devices (e.g. ikonos), with innovative image processing techniques and with further develo...
Land-surface models are widely used to simulate and predict the movement of momentum, energy, and matter between the biosphere and the atmosphere at local, regional and global scales. In this study, in order to evaluate the performance of this model in daily simulation of discharge in Gharesou watershed, using a spatial resolution of 0.125 degrees, satellite imagery and global databases to prov...
[This corrects the article on p. 439 in vol. 108.].
BACKGROUND Predicting which species are likely to go extinct is perhaps one of the most fundamental yet challenging tasks for conservation biologists. This is particularly relevant for freshwater ecosystems which tend to have the highest proportion of species threatened with extinction. According to metapopulation theories, local extinction and colonization rates of freshwater subpopulations ca...
Following the collapse of the Soviet Union and the discovery of gas and oil in Central Asia and Caucasia, it faced complex interests in the international political economy. These problems were mainly rooted in developing plans of the countries for increasing their influence in the area and also in Russia's connections with the Iranian and Turkish governments in the region. This paper investigat...
The Syrian crisis, after passing the stages of a hard war between regional actors, advances towards a new cold war between powerful intra-regional actors. The basic question raised in the present article is, “How is the nature of the new conflict between East and West in the Syrian crises?” The nature of the confrontation is revealing the cold war between the two blocks of the Western countries...
Background & Objective Given the growing global competition between countries and universities to attract international students, determining the level of satisfaction of these individuals and factors involved in their dissatisfaction during the admission and attraction processes is of utmost importance. Therefore, this study aimed to identify the factors affecting the satisfaction of internati...
2. Linking and analysing governance of natural resources at different scales requires the development 3. of a conceptual framework for analysing social-ecological systems which can be easily applied by a 4. range of stakeholders whose interests lie at different scales, but where the results of the analysis 5. can be compared in a straightforward way. This paper outlines the System Viability fra...
این پژوهش با استفاده از علم سنجی، درصدد بررسی استنادی و ترسیم ساختار تولیدات علمی حوزه حقوق مالکیت فکری در سطح بین المللی و در بازه زمانی 2000 تا 2010 است. داده های پژوهش از پایگاه اطلاعاتی "وب آو ساینس" گردآوری شده که شامل 678 رکورد بود. داده های استخراج شده از این پایگاه در حیطه های سال انتشار، مجله، زبان، کشور، نویسنده، موسسه یا دانشگاه، قالب مدارک و موضوع مورد تجزیه و تحلیل قرار گرفت. سپس ی...
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