نتایج جستجو برای: especially in big cities like tehran
تعداد نتایج: 17073907 فیلتر نتایج به سال:
One of the big concerns of big cities is facing with the increase of fossil fuel vehicles in the roads. The cars intensify greenhouse gas emission in civic centers. One approach to reduce the emission is replacing the cars by Plug-In Electric Vehicles (PEVs). In spite of reducing the emission, PEVs have some adverse effect on electric distribution networks. Technical challenges such as load and...
Background: With more than 12 million new cases of cancers and nearly 7.6 million deaths all around the world in 2007, cancer currently is the third leading cause of death in the world. This study was conducted to determine medical and non-medical direct costs of cancer patients’ hospitalized in the cancer institute affiliated with Imam Khomeini hospital. Materials and Methods: This was a cros...
هدف: کشت سلول های اسپرماتوگونی و تولید سلول های پر توان embryonic stem cells (es like cells) که دارای قابلیت بازسازی و تولید هرسه نوع لایه زایای جنینی می باشند، این سلول ها را به عنوان منبع کافی و جدیدی برای سلول درمانی و ترمیم در بیماریها از جمله بیماریهای نورودژنراتیو پیشنهاد می دهد. در تحقیق حاضر تمایز سلول های اسپرماتوگونی موش به سلول های شبه الیگودندروسیت و نقش آنها درمیلین سازی پس از پیون...
according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...
the images of muslims in media, literature and politics have been mostly black and white portrayals of a people alien to modernity, civilization, rationality and pluralism. since the end of the cold war and the onset of deadly terrorist attacks in different areas of the world, especially in the united states, these representations show a palpable difference: muslims are represented not only as ...
analysis on spatial structure of cities bushehr province in order to codification strategic planning
extended abstractintroductiontoday, large number of world’s major cities is located in coastal environments these towns have and all important positions in the economic, cultural and social functions. coastal areas and the cities located in they are economically very important in terms of the environment, sensitive to many of factors influencing and physically, against a variety of natural haza...
Cities are gradually relying on significant segments to handle problems with civilization, the environment, topography, and many other topics. This possibility is greatly aided by burgeoning idea of “Green Infrastructure,” which fosters integration monitors Big Data through Internet Things (IoT). In addition improving employment future, this data explosion also opens up new opportunities for ci...
Vehicle exhaust is a major source of anthropogenic carbon dioxide (CO2) in metropolitan cities. Popular community mode (buses and taxies) and about 2.4 million private cars are the main emission sources of air pollution in Tehran. A case survey has conducted to measure CO2 in four popular vehicles, bus, taxi, private car and motorcycle, which moved in the city with respectively 7800, 82358, 560...
BACKGROUND The goal of this study was to describe the hospital-based incidence of traumatic spinal cord injury in Tehran, Iran. METHODS We retrospectively reviewed the hospital records of traumatic spinal cord injury patients, admitted between March 2010 and July 2011 in 61/68 hospitals of Tehran. RESULTS Overall, 138 cases of traumatic spinal cord injury were identified. The majority of pa...
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