نتایج جستجو برای: at similarity distance of 65

تعداد نتایج: 21371407  

A.H. Feng, H. Chen, H. Quan, H. Wang, H.L. Gu, J.F. Cheng, X.L. Fu, Y. Shao, Y.C. Ying, Y.H. Duan, Z.Y. Xu,

Background: The grading evaluation of atlas based auto-segmentation (ABAS) of organs at risk (OARs) in thorax was studied. Materials and Methods: Forty patients with thoracic cancer were included in this study, and for each thirteen thoracic OARs were delineated by an experienced radiation oncologist. The patients were randomly grouped into the training and the test dataset (20 each). The inves...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...

Journal: :علوم باغبانی ایران 0
بهروز سرابی دانشجوی سابق کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمدرضا حسندخت دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد اسماعیل حسنی محقق دانشکده کشاورزی، غذا و منابع طبیعی، پارک تکنولوژی دانشگاه سیدنی، استرالیا تیمور رمک معصومی مربی پردیس کشاورزی و منابع طبیعی دانشگاه تهران

rapd markers were employed to assess the genetic diversity of 34 iranian wild edible asparagus (a. officinalis) genotypes as well as cv. mary washington and a. persicus. in total, 80 rapd primers were employed for pcr reactions, among which, 18 revealed reasonable polymorphism. the 18 primers produced 175 bands, of which, 160 were polymorphic (91.4% polymorphism). cluster analysis of the genoty...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

Journal: :journal of sciences islamic republic of iran 0

the taxonomic affinity of six species of crocus (c, cancellatus subsp. damascenus c. almehensis, c. gilanicus, c. sativus, c.pallassi subsp. haussknechtii,c. speciosus subsp. speciosus) from iran were studied usingdifferent electrophoresis techniques. the similarity index of the species was computed by comparison of protein bands of - corm and seed tissues, and the related dendrogms of affinity...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

the aim of this study was to identify the problems of translating markedness structures from english to persian in order to look closely at what possible difficulties translators may face. it also seeks to probe the strategies applied accordingly by iranian translators in translating them. from three translation of blindness novel, the sentences with marked structures were elicited and also the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ادبیات و زبانهای خارجی 1392

abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...

Journal: :علوم باغبانی ایران 0
اله داد سلیم پور دانشجوی سابق کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی عبادی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمدرضا فتاحی مقدم دانشیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران مهدی حدادی نژاد دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

almond is one of the most valuable horticultural nut crops in the world with iran being amongst the most important regions of its distribution. rapd markers were employed to evaluate the diversity levels and relationship among some 56 collected genotypes of the crop. through sixteen rapd primers a number of, 171 dna bands were produced, 168 of which were polymorphic. the samples which according...

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