نتایج جستجو برای: such factors as population growth
تعداد نتایج: 7174975 فیلتر نتایج به سال:
nowadays the growth of deserts is one the most important problems in iran. this phenomenon has many reasons such as growth of population, global changes in the climates and many undesirable consequences such as the erosion of agricultural soils and immigration of rural people to urban regions mainly to the capital of iran, tehran. isfahan province is one of the semi-arid and desert regions in t...
some biological characteristics of broodstock and juvenile kutum, rutilus kutum. were investigated using data collected from the estuaries of tajen and shirood rivers (tr and sr) (southern caspian sea basin) as well as from the caspian sea in 2012. the results showed higher condition factors (cf) in the male broodstocks kutum than those estimated in the female broodstock of both tr and sr. the ...
Worldwide epidemic had a specific role on human health and economic; Corona, for example, as a huge pandemic had an expand effect on human health, social relation, economic, politic and environment with severe respiratory disorder and high mortality rate in the world. Due to importance of SARS-Cov-2, the present paper deals with the route of transmission, their relation with sex, prevention and...
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...
Some biological characteristics of broodstock and juvenile kutum, Rutilus kutum. were investigated using data collected from the estuaries of Tajen and Shirood Rivers (TR and SR) (southern Caspian Sea basin) as well as from the Caspian Sea in 2012. The results showed higher condition factors (CF) in the male broodstocks kutum than those estimated in the female broodstock of both TR and SR. The ...
Objectives Considering the rapid growth of elderly population in the world, especially in Iran, studying the quality of life in elderly people and the identification of factors affecting them is of particular importance. This research aimed to identify factors which could improve or deteriorate quality of life in elderly women and men. Methods & Materials The present research is a qualit...
objective: reaching to high economic growth has always been a concern for economic policy makers in developing countries including iran. since labor productivity is one of the most important sources of economic growth, policies are targeted to boost labor productivity in most countries. for realization of this aim, there is a special consideration to health improvement policies because health i...
Abstract Introduction: population aging refers to an age imbalance of the population so that the ratio of young population decreases while aged population grows. Decrease in fertility rate and growing life expectancy are the two key factors in emergence of population aging. The macro economy effects of population aging on economic growth was examined based on the effects of two factors includ...
the rapid growth of population in the third world countries specially in recent decades has posed an important social problem. there have been some attempts to propose solutions for this problem by scientists from various disciplines. however, it seems that an integrated approach calling for collaboration of various efforts can be more fruitful. in this work, we study the relation of women fert...
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
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