نتایج جستجو برای: and 12
تعداد نتایج: 16902035 فیلتر نتایج به سال:
In spite of social media’s lack of structural integrity, accuracy, and reduced noise with respect to other forms of communication, it plays an increasingly vital role in the observation of societal actions before, during, and after significant events. In October 2012, Hurricane Sandy making landfall on the northeastern coasts of the United States demonstrated this role. This work provides a pre...
پلیمرهای ¬معدنی ¬دو بعدی جدید h2[{m(h2o)8m(h2o)7m(h2o)6}p2w18ce3o70(oh)( h2o)n].xh2o x = 24 and 29) (n = 1and 2) (m= la3+ and ce3+) ) از واکنش پلی اکسوآنیون ساندویچی نوع a [p2w18ce3o71(h2o)2]12-به عنوان بلوک ساختمانی و m(no3)3.6h2o (m = la3+ ce3+) درمحیط آبی تهیه و تعیین ساختار شدند. ساختار این ترکیبات شامل لایه های موجی شکل دو بعدی در صفــحه ac می باشند که بوسیله اتصال واحدهای ساختاری [m(h2o)8...
abstract: the potato tuberworm, phthorimaea operculella (zeller), is an important insect pest of potato (solanum tuberosum l.) in the storage and field in most parts of the world especially in tropical and subtropical regions due to its close relationship with the host, high reproductive potential and high economic losses. information on host preference, life table parameters and digestive en...
Background & objective: KRAS mutations are reported in many types of cancers including pancreas, lung, colon, breast, and gastric (GC). High frequency of KRAS mutation is observed in the pancreas, colon, and lung cancers; they commonly arise in codon 12 and 13 of exon 2. Due to the lack of information about the frequency of KRAS</...
although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
در این بررسی که طی سالهای 1388 و 1389 انجام گرفت، در مجموع 18 گونه متعلق به 12 جنس و 9 خانواده جمع آوری شد که از این تعداد دو گونه برای اولین بار از ایران و نه گونه برای اولین بار از دنیا گزارش میشوند که به ترتیب با علامت (*) و (**) مشخص شدهاند. نام میزبان یا میزبانهای هر یک از کنهها در داخل کروشه [] درج شده است. کلیه نمونهها در کلکسیون کنه شناسی گروه حشره شناسی کشاورزی دانشگاه تربیت مدرس تهران...
abstract: one of the most visited & important spaces in different countries by tourist are urban areas. the old tehran which major part is located in district 12 is historical showcase of the capital, but, its hiidden cultural attraction is not used as it should be. this thesis occasionally engage in studying the efficacy of correct installation of travel guide boards in welfare & easily acc...
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...
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