نتایج جستجو برای: use value in total wetland preservation value
تعداد نتایج: 17273185 فیلتر نتایج به سال:
according to coates’s (2004, as cited in zhang, 2010) definition of "conversational dominance" (p.111), it refers to the phenomenon of a speaker dominating others in interaction. specifically, it means how a speaker makes use of certain strategies to get the floor and maintain the floor. thus, the amount of talk is the main measurement for the dominance of the conversation. whether a speaker do...
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...
the task of optimally assigning military ordinance to enemy targets, often termed weapon target allocation (wta) problem, has become a major focus of modern military thought where a cost effective allocation is required without degrading the required kill performance. the paper presents three main weapon allocation techniques namely uniform weapon allocation, first-in-first weapon allocation an...
dynamic assessment according to vygotskys sociocultural theory, states that instruction and assessment are interrelated. using static forms of assessment with second and foreign language students could do more harm than good. many teachers neglect to take account of the complexity involved in learning a second or foreign language and often wonder why learning of a language take so long. thi...
The small Sanjiang plain is one of the most important commodity grain production bases and the largest fresh water wetland in China. Due to the rapid expansion of agricultural activities in the past 30 years, the contradiction between economic development and the loss of ecosystem services has become an issue of increasing concern in the area. In this study, we analysed land use changes and the...
mehg and total mercury concentrations were determined in the muscle tissues of four fish species (cyprinus carpio, rutilus frisii, carassius auratus and esox lucius) from anzali wetland (guilan, iran). fish with the highest amount of mehg was selected to determine the thermodynamic parameters of mehg extraction. the extractions process was performed in the range of temperatures 331.15 to 367.15...
Juncus acutus, a wetland plant, helps improve habitats for both terrestrial and aquatic creatures spawning grounds fish. A variety of birds use between the trunks juncus as shelter. They also help prevent soil erosion due to their extensive root systems. On other hand, it can be said that has negative effect on feeding grassland animals high density in wetlands.Plant materials from which is int...
گستره آذربایجان که بخش شمال باختری ایران را شامل می شود، ازدیدگاه زمین شناسی جزء پیچیده ترین بخش های ایران محسوب می شود. بیشترین فعالیت لرزه ای در آذربایجان، در اطراف سیستم های گسلی اصلی که اکثرا به صورت خوشه ای و در راستای nw-se توزیع یافته اند، دیده می شود. زمین لرزه های 21 مردادماه 1391 اهر- ورزقان (mw=6.4 و mw=6.3 )، نخستین جنبش نیرومند لرزه ای عهد حاضر زمین است که تاکنون رومرکز لرزه ای این...
recognized as the realistic value and hub center of learning, libraries since their primitive stage of establishment have been imparting services in teaching, learning and research. induction of ict in library precipitated to a change in knowledge acquisition, organization, dissemination, representation and preservation. further, the espousal of technology precipitated many new form of learning...
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