نتایج جستجو برای: the us
تعداد نتایج: 16073654 فیلتر نتایج به سال:
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
چکیده : نظریه ی شیوه ی تولید آسیایی ، اولین بار توسط مارکس و سپس در تأیید نظریات او ، در آثار انگلس مطرح شد . این نظریه علاوه بر شیوه تولید ، به بحث درباره ی ماهیت دولت در جوامع آسیایی می پردازد . در این پژوهش ، وجه تولید آسیایی و نظریات پیرامون آن در توسعه نیافتگی ایران ، مورد بحث و بررسی قرار می گیرند . مهمترین نظ the asian production theory was first introduced by marx and then was suppo...
دست¬ورزی کشت¬های سلولی با الیسیتورها یکی از استراتژی¬های مهم جهت القای متابولیت¬های ارزشمند در بیوتکنولوژی گیاهی است. بدین منظور در این مطالعه اثر امواج us و تنش شوری بر رشد، تولید متابولیت¬های اولیه و ثانویه در کشت سلولی ریزجلبک dunaliella salina مورد بررسی قرار گرفت. کشتهای سلولی تحت اثر تیمارهای امواج us (40 کیلو هرتز) به مدت زمان 5/2، 5 و10 دقیقه و شوری با غلظت های 2 مولار و3 مولار کلرید سد...
methodology non-native participants in this study were sixty ba students majoring in english literature and teaching english as a foreign language at khayyam university of mashhad. they were senior students, between 21 to 24 years old, who had studied english for at least three and a half years and had passed several courses including grammar, reading, conversation, and writing. this was assum...
In this paper, we obtain new oscillation criteria for second-order half-linear impulsive differential equations having fixed moments of impulse actions. We also generalize the results to nonlinear impulsive equations. The oscillation criteria obtained in this paper can be considered as extensions of those given by Leighton, (J. London Math. Soc. 27 (1952)), Coles (Proc. Amer. Math. Soc. 19 (196...
A comment on “ An arbitrage - free approach to quasi - option value ” by Coggins and Ramezani ∗ Paul
In their article “An Arbitrage-Free Approach to Quasi-Option Value” [J. Environm. Econom. Management 35, 103-125, 1998], Coggins and Ramezani interpreted the concept of quasi-option value introduced by Arrow and Fisher [Quart. J. Econom. 88, 1974, 312-319] as being identical to Dixit and Pindyck’s real option value. This means their approach differs from the approach by Fisher and Hanemann [J. ...
We hypothesize that owing to limited investor attention and skepticism of complexity, innovative diversity (ID) of a firm's patent portfolio will be undervalued. ID strongly predicts stock returns after controlling for firm characteristics and risk. High ID portfolios provide Carhart alphas of 56-81 basis points per month and stronger and less volatile operating performance. The Diversified Min...
and Applied Analysis 3 Next we present auxiliary statements which play important roles in proving the main results. Define F : 0,∞ → R by F x Φ x/q−1/q −Φ 1−1/x and h : Φ −∞ q ,∞ → R by h x x 1 − q1−α [ 1 − ( 1 ( q − 1 ) Φ−1 x )1−α] . 2.1 For y : q0 → R \ {0} define the operator L by L [ y ] t Φ ( y ( q2t ) qy ( qt ) − 1 q ) −Φ ( 1 − y t
the us foreign policy processes in the middle east, in the post world war ii period, have always brought about security challenge, danger and crisis, in the region. all us presidents have experienced grave security crisis in this geopolitical area. there also exists many indications of distrust of the current foreign us policy exercised in the middle east on the part of middle eastern citizens....
the united states policy toward iran during 1985-7 is a significant issue. the us had followed a confrontationist policy toward iran after the 1979 revolution but a shift in the policy could be observed in the mid 1980's in the form of us attempts to make a rapprochement possible. this article explains this shift through the examination of the impact of this variable: solving us problems i...
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