نتایج جستجو برای: according to performed classification by ramsar convention (1971)
تعداد نتایج: 12292472 فیلتر نتایج به سال:
according to performed classification by ramsar convention (1971), choghakhor is one of the most valuable wetlands of iran. despite of high abilities of perspective and variation of habitats, tourism valuations are not considered. in this study, promenade valuation choghakhor wetland was estimated by using zonal travel cost method. these methods is based on using map, sight, social-economical c...
acknowledgements i wish to express my gratitude to all those who have helped me in preparing this thesis. i would like to express my deep gratitude to my respected advisor dr. kourosh akef, whose advice and comments helped me in the early stages of the research and throughout the writing process. i would also like to express my gratitude to dr. hajar khanmohammad whose invaluable guidance he...
the present study attempts to discover ideological differences between alcott’s novel (1868) named “little women” and its two persian translations. the first has been translated by morvarid and the second has been translated by obeidi. to this end, farahzad’s cda approach (2012) was used to analyze the ideology reflected in both translations by the two different translators. according to farahz...
the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...
The ‘Ramsar’ Convention on Wetlands was the first of modern era global biodiversity conventions and remains only multilateral environmental agreement focused a single group ecosystem types. At time initial discussions within wetland conservation science community in late 1960s, its ambition unprecedented, with no successful models to draw upon, especially regard novel concepts such as modus for...
abstract this study investigates the teachers’ correction of students’ spoken errors of linguistic forms in efl classes, aiming at (a) examining the relationship between the learners’ proficiency level and the provision of corrective feedback types, (b) exploring the extent to which teachers’ use of different corrective feedback types is related to the immediate types of context in which err...
Determination of environmental water rights of Amirkalayeh wetland is one of goals for improving of water quality environmental protection and ecosystem restoration dependent on it. This tends to preserve the natural environment and biological values of wetlands. Amirkalayeh wetland is one of important international wetlands recorded in the International Convention for the Protection of Wetla...
phatic communion is a cultural concept which differs across cultures. according to hofstede (2001), the u.s. tends to have individualistic culture; however, asian countries tend to have collectivistic cultures. these cultures view phatic communion differently. in individualistic cultures like u.s., phatic communion reflects speakers’ socio-cultural relationships in conversations. to see whether...
the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...
the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...
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