نتایج جستجو برای: rate of population growth
تعداد نتایج: 21312812 فیلتر نتایج به سال:
as social health is a condition-driven, dynamic and fluid concept, it seems necessary to construct and obtain a national and relevant concept of it for every society. providing an empirical back up for iran's concept of social health was the aim of the present study.this study is an ecologic study in which available data for 30 provinces of iran in 2007 were analyzed. in order to prove construc...
to explore the idea the investingation proposed, aimed at finding whether the performances of the population of iranians students studying english in an efl context are consistent in l1 and l2 writing taks and whether there is a cross-linguistic transfer in this respect. in this regard the subjects were instructed to write four compositions-two in english and two in farsi-which consisted of an ...
in order to evaluate the impact of different amounts of nitrogen fertilizer on growth and yield of two forage sorghum cultivars, a 2-year field experiment was carried out at the college of agriculture, shiraz university, shiraz, iran during 2010 and 2011 growing seasons. two factorial experiments were carried out in randomized block design with three replicates, in which the treatments included...
this study sought to examine the effect of cooperative game on iranian students achievements in english alphabet learning. cooperative games are games, in which players or teams work together towards a common goal without defeating someone. the methodology used in this study was experimental. the population of the study was 60 female students from the grade one in secondary school in tabriz, ir...
introduction population growth and sustainable development has significant relationship. The population event and its consequences led the researches of social fields, and environmentalists to react in various ways. The population restrictionist, stationarist and optimulist, have approached the question differently. The present article’ emphasis is on the well proportioned population appro...
The aim of the current study was to assessing the effect of inbreeding on growth-related traits including birth weight (BW), weaning weight (WW) and average daily gain (ADG) as well as efficiency-related traits such as Kleiber ratio (KR) and relative growth rate (RGR) of Moghani sheep. To this end, after editing data and preparing pedigree file, coefficients of inbreeding were estimated an...
translation studies have become an accepted academic subject and books, journals and doctoral dissertations appear faster than one can read them all (bassnet and lefevere, 1990). but this field also brought with itself so many other issues which needed to be investigated more, in the heart of which, issues like ideology, ethics, culture, bilingualism and multilingualism. it is reported that ove...
This paper tries to survey Irans regional labor market disequilibrium within 1996-2000. According to the results there has been an increase in the amount of disequilibrium of Irans national as well as regional labor markets. Incomplete labor market information on vacant job opportunities in different regions of the country along with high costs of migration have been the major causes of unemplo...
In this paper, using sub-supersolution argument, we prove an existence result on positive solution for an ecological model under certain conditions. It also describes the dynamics of the fish population with natural predation and constant yield harvesting. The assumptions are that the ecosystem is spatially homogeneous and the herbivore density is a constant which are valid assumptions for mana...
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