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تعداد نتایج: 17056853 فیلتر نتایج به سال:
در این پایان نامه به بحث پیرامون صفحه پارامتری خانواده ی خاصی از نگاشت های گویا که مدارهای بحرانی کمی دارد، می پردازیم. نمونه ی ما خانواده ی r_t(z) =t(1+ 4z^3 27(1-z))) است که دینامیک آن توسط رفتار مدار فرابحرانی (?r_t^n (t))?_(n ?n) کنترل می شود. به ویژه در این پایان نامه نشان داه می شود که اگر پارامتر t، پارامتر فرار باشد(به عبارتی r_t^n (t) به ازایt به بی نهایت میل کند) آنگاه مجموعه ی ...
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1.1 introduction “i see translation as the attempt to produce a text so transparent that it does not seem to be translated. a good translation is like a pane of glass. you only notice that it’s there when there are little imperfections- scratches, bubbles. ideally, there shouldn’t be any. it should never call attention to itself.” “norman shapiro” (venuti, 1995:1) edward fitzgerald is the br...
in order to investigate effective morpho-physiological traits related to salinity resistance, and their relationship with grain yield as well as study of salinity tolerance and susceptibility indices in 169 barley recombinant inbred lines, a population of barley derived from a cross between arigashar and igri, this experiments were carried out using alpha lattice design with two replications d...
چکیده نمایشگاه های جهانی یا اکسپو عنوانی ست که از سال 1851 میلادی در لندن توسط همسر ملکه انگلستان شکل گرفت ، هدف اولیه این نمایشگاه ها نمایش دستاورد های صنعتی بود، اما در طول 165 سال که این نمایشگاه های برگزار گردیدند ، رویکرد آنها تغییر کرده است . در هر دوره به یک شعار که در واقع دغدغه اصلی جهان، در آن زمان بوده است ، پاسخ داده شده و راه حل کشور های مختلف در مورد آن موضوع به نمایش گذارده شد...
the occurrence of genotype × environment (ge) interaction has led to the development of several stabilityparameters that can be used to estimate the stability of cultivar performance. repeatability of 20 parametric and non-parametric stability measures across years and yield subsets as well as their association with mean seed yield and interrelationship among them in safflower (carthamus tincto...
objective: several studies have shown that following disasters, major depressive disorder is the most common psychiatric disorder that occurs with posttraumatic stress disorder (ptsd). comorbidity of anxiety symptoms have also been shown. the objective of this study was to show the comorbidity of depressive and anxiety symptoms in adolescent survivors of bam earthquake. method: in a case–contro...
Background: It is well documented that cigarette smoking has negative impacts on body health, as well as social health, economy, culture, etc. Nowadays, there is a large body of evidence that smoking is the cause of numerous life-threatening diseases like cardiovascular and pulmonary diseases along with different kinds of cancer. The aim of this study was to compare the physical fitness of smok...
The stool samples from 363 diarrhoeic and non- diarrhoeic children and adults from several locations in two towns of west Azerbaijan area of Iran examined for Cryptosporidium infection by modified Ziehl- Neelsen technique revealed the presence of infection in 7.66% of diarrhoeic patients and in none of the non- diarrhoeic individuals. The percentage of detection was higher among females ( ...
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