نتایج جستجو برای: rate of population growth
تعداد نتایج: 21312812 فیلتر نتایج به سال:
intorduction: Social capital is a well - known social determinant of health. This study intends to determine the relation between social capital and social health indicators and show how social capital influences social health. Method: one of the specific type of correlation study is ecologic or aggregate study in which research unit is group not individual, we used this kind of study. Soc...
in fact, this study focused on the following questions: 1. is there any difference between the effect of functional/notional approach and the structural approaches to language teaching on the proficiency test of efl learners? 2. can a rather innovative language test referred to as "functional test" ge devised so so to measure the proficiency test of efl learners, and thus be as much reliable an...
background : population growth is still a global concern. in spite of the decrease in population growth and conception rate, iran and the world population will grow in coming years. participation of men in contraception interventions to control population growth is of great importance. methods : this is a quasi-experimental study, in which the authors provided group training of contraceptive me...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
پیش بینی سری های زمانی موضوع بسیار مهمی است که کاربردهای فراوانی در زمینه های مختلفی چون پیش بینی نرخ ارز، پیش بینی قیمت سهام ، پیش بینی آب و هوا و غیره دارد. در سال های اخیر تلاش های بسیاری در جهت توسعه و بهبود عملکرد روش های پیش بینی صورت گرفته است. به دلیل عملکرد بهتر روش های غیرخطی در پیش بینی سری های زمانی به خصوص سری های زمانی آشوبگرا، در این تحقیق دو مدل پیشنهادی برپایه روش های غیرخطی بر...
background: the number of scientific publication by a country is an important indication of its science generation and development. the aim of this study was to compare the publications in medical sciences of islamic countries from 2002-2009 with those of a number of developed countries. methods: the pubmed and cia world fact book were used to extract the number of publications and socioecono...
To understand the role of relative humidity rate, host genotype, inoculation method and growth stage in epidemiology of bean common blight, two greenhouse experiments were carried out monitoring epiphytic population size of Xanthomonas axonopodis pv. phaseoli (Xap) and disease severity. The result showed significant differences among genotypes, inoculation methods and growth stages for epiphyti...
This article reviews the role of migration in determining population size in Australia, and suggest ways of achieving a stationary population, or zero population growth (ZPG), when fertility is below replacement. There is a narrow range of feasible options. It is argued that achievement of ZPG is feasible only with net migration of 60,000-100,000 annually and with a fertility rate of 1.65-1.8...
As a result of improving health science, the elderly population has increased. The World Health Organization (WHO) mentions the age of 60 as the starting point for aging, and it has also been shown that aging has the highest development rate, particularly in developing nations, according to worldwide stats among distinct age groups. Due to the improvement of health science, the population of el...
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