نتایج جستجو برای: introductionurbanization in developing countries has caused many problems
تعداد نتایج: 17227376 فیلتر نتایج به سال:
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
The phenomena of "graying" of population which was started in 20th century will continue in the next. It confronts the world with new challenges in the realms of health economy, politics, and cultural issues which are very difficult to overwhelm. The problems arising of this phenomena must be welcome, because they are indicators of upcoming development. Aging of population has occurred in devel...
1 Department of Environmental Science, Tezpur University, Tezpur, Assam 784028, India 2 Jawaharlal Nehru University, New Delhi, India 3 Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka 4Hanoi Architectural University, Vietnam 5Center for Environmental Risk Research, National Institute for Environmental Studies (NIES), 16-2 Onogawa...
Background: Assessment of different strategic in disaster planning in selected countries. According to the international report indicating that IRAN is among the seven countries most susceptible to disaster, experiencing 31 known disasters out of 40 in the world, occurrence of 1536 moderate to severe earthquake, during 1370-80 and 712 other disasters at the same period it seems necessary to...
Covid-19 was detected in Iran since February 2020, and until September 2020, all the provinces of the country were affected by this disease (1). During the Covid-19 pandemic, many older adults received a lot of stress and anxiety from the media and society, which caused them to become socially isolated and depressed. On the other hand, creating quarantine and social distancing as a policy adopt...
“Recurring economic and political crises in various parts of the world, serious environmental problems, and widespread insecurity about the future” (W1) have increased the gap between rich and poor, between countries and also within countries. What do we know about the role of substance use and the risk factors and impact of substance use problems in this context? The problems have to a large e...
PosterSection/Group Slide Poster Discussion Total
today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید