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تعداد نتایج: 11960186 فیلتر نتایج به سال:
until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...
Heat stress compromises fertility during summer in dairy and beef cows by causing nutritional, physiological and reproductive damages. To examine the difference in endometrial conditions in cows between summer and autumn, gene expression profiles were compared using a 15 K bovine oligo DNA microarray. The trial was conducted in the summer (early in September) and autumn (mid-November) seasons o...
The purpose of this study was to investigate the distribution and biodiversity of diatoms during different seasons and their correlation with water quality parameters in Helleh River estuary, Bushehr, Persian Gulf. Samples were taken in mid-season from summer 2011 to spring 2012 during a one-year period from different stations. Results showed that diatoms mostly comprised of Bacillariophyceae, ...
Critique takes a key role in the political economy of contemporary art’s marketization. It gives substance to a moral involvement in contemporary art that is operationally central to the distinction between its primary and secondary markets. In so doing, critique serves to maintain the grip of the primary market over contemporary art. Accounting for the distinction between markets in terms of a...
when we return to the concept of poetry and the age-old discussion about the uselessness or the usefulness of the poets to the private and public state of human beings, originating from plato and aristotles views about poets respectively, there emerges the question of the role of poetry in human beings lives. in the same manner, with the advance of technology and the daily progress and improvem...
Myrtle ) Myrtus communis L.) is a diploid plant belongs to the family of Myrtaceae and is considered as one of the important medicinal and ornamental plant. The present was performed to investigate the effect of salinity stress on morphological and physiological traits in myrtle. This study was conducted in an experiment of split plot in time according to a randomized complete block desig...
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...
background: organic nitrates relax all kinds of smooth muscle , not only vascular smooth muscle , a fact that has allowed the use of these drugs to treat many different aliments. objective.-the purpuse of this study was to examine prosepectively benefical effects , if any, of sublingual nitroglycerin on the pain of renal colic. design.- prospective , randomised , double blind, placebo- contoled...
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