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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...
testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...
Combining broad pest resistance, high yield, and nutritional quality of fruit in the same hybrid is a challenge for round tomato breeders. Thus, development dwarf line obtaining hybrids may be an excellent alternative achieving such objectives. The aim this study was to evaluate agronomic potential, quality, resistance BC1F3 populations. We evaluated 13 treatments 4 replications. Treatments con...
Symplocos wikstroemiifolia Hayata is one of the few morphologically androdioecious species in Symplocaceae. Although this species has been proposed as cryptically dioecious, little is known about its patterns of sexual expression in the field. We studied the breeding system and reproductive biology of S. wikstroemiifolia in Taiwan. Field investigations showed that anthers of most morphologicall...
Auxin is known to regulate cell division and cell elongation, thus controlling plant growth and development. Part of the auxin signaling pathway depends on the fine-tuned degradation of the auxin/indole acetic acid (Aux/IAA) transcriptional repressors. Recent evidence indicates that Aux/IAA proteins play a role in fruit development in tomato (Solanum lycopersicum Mill.), a model species for fle...
چکیده قاجارها و حکومت پهلوی اول علی بازوند موضوع انقراض سلسله قاجار و انتقال حکومت به پهلوی از رخدادهای مهم تاریخ معاصر ایران است . که در این پژوهش به چگونگی نقش و عملکرد دیوان سالاران ، شاهزادگان و رجال خاندان قاجاری در این انتقال قدرت و نحوه ی برخورد رضاشاه با قاجارها دردوران سلطنت به آن پرداخته شده است . برای پاسخ به این مسأله ، بررسی های انجام گرفته بیانگر آن است که مخالفت افراد قاج...
تحلیل پوششی داده ها به عنوان یک علم نوپا به ابزاری برای اندازه گیری کارایی در آمده است. تحلیل پوششی داده ها به بررسی و ارزیابی واحدهای تصمیم گیرنده که یک یا چند ورودی را برای تولید یک یا چند خروجی مصرف می کنند می پردازد. از مشخصه های اصلی تحلیل پوششی داده ها حساس بودن آن نسبت به داده ها می باشد بدین معنی که عدم دقت در جمع آوری داده ها باعث به دست آمدن نتایج نادرستی می گردد. از جمله کاربردهای ان...
from historical facts to geo-political realities: relation between turkey and armenia ( 1915 – 2010)
armenias geopolitics and its historical experience have had a determining impact on the character of its foreign policy .present-day armenia is a small, landlocked country with _11,620 square miles area armenias landlocked nature makes it dependent on the benevolence of its neighbors for access to the outside world a fact that gives it a sense of isolation and vulnerability. as it was indic...
The four microsporangia of the flowering plant anther develop from archesporial cells in the L2 of the primordium. Within each microsporangium, developing microsporocytes are surrounded by concentric monolayers of tapetal, middle layer and endothecial cells. How this intricate array of tissues, each containing relatively few cells, is established in an organ possessing no formal meristems is po...
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