نتایج جستجو برای: transition and

تعداد نتایج: 16873517  

This artcle initially explores grounds for transition toward democracy at the global level and offers statistics and info on democracy as a worldwide phenomenon.Iran's political system, as well as the developments it has gone through after the 1979 Revolution, will then be succinctly disussed. The article centers on eonditions precluding Iran's transition to democrac based on recent thoretical ...

سیداحمد کتابی, , ناصر شاه طهماسبی, ,

 In this study the nature of transition to metallic regime in trans-polyacetylene (trans-PA) is investigated. Based on Su-Schrieffer-Heeger (SSH) model and the use of Continued - Fraction Representation (CFR) as well as Lanczos algorithm procedure, we studied the effects of some selected soliton distributions on the semiconductor-to-metal transition in trans-PA.We found that,this transition occ...

Journal: :سیاست 0
احمد جوانی استادیار گروه معارف دانشکده علوم انسانی دانشگاه امام حسین(ع)

“transition to democracy” is one of the significant results of social movements. inefficient domination using hardware method by the control system led the west to encourage liberal democracy using software method in order to change non-democratic governments, referred to as “transition period” or velvet revolution- the approach of transition theory holds that change is also necessary in iran (...

Background & aim: Birth of the first child is one of the major life events for every woman. This event can make extensive changes in couple’s life, which lead to the reduction of marital satisfaction or incidence of conflicts in wifehood and parenthood. Regarding this, the present study was conducted to determine the relationship between transition to parenthood and ma...

نقوی, محسن,

Background and objectives: Data on transitions in health status are among the most important types of information used for promotion of health and social development. Health transition comprises two elements: demographic and epidemiologic transition. This paper depicts the health transition in I.R. Iran over the last few decades. Methods: We used demographic data gathered over the last 45 ye...

Journal: :iranian journal of public health 0
mi yu

background: transition into parenthood is a major developmental life event and is very significant because development in infanthood is affected by the transition process of mothers parenting an infant. this study aimed to develop the assessment tool for transition process of high risk infant’s caregiver in korea. methods: the participants were 246 mothers of premature infant born with gestatio...

Journal: :زمین شناسی اقتصادی 0
مصطفی اسماعیلی وردنجانی رضا شمسی پور دهکردی کاوه پازند داود رهی

groundwaters hydrochemistry of ayrakan and cheshmeh shotori areas and geochemistry of rare earth elements, indicate ayrakan alkali granite as the origin of uranium and other dissolved elements in groundwaters of these areas. geochemical and hydrogeochemical studies as well as the trend of uranium and thorium transition and mobility in aqueous environments of these areas indicate uranium adsorpt...

Journal: :علوم و تکنولوژی پلیمر 0
محمدرضا رستمی درونکلا محمدعلی سمسارزاده

the glass transition temperature of several pvac(1)-b-poly(ma-co-mma) (2) terpolymers with different fractions of methyl acrylate (ma) and methyl methacrylate (mma) repeating units in random copolymer (block 2) were calculated with barton, kwei and topological equations. the calculation was on the basis of the correlation between the fraction of repeating units in random copolymers and theoreti...

Journal: :سیاست 0
سید احمد موثقی استادیار گروه علوم سیاسی دانشکدة حقوق و علوم سیاسی دانشگاه تهران علیرضا کاهه دکتری گروه علوم سیاسی، دانشکدة حقوق و علوم سیاسی، دانشگاه تهران

by using a model of development, called developmental state, which appeared during the history of development in east asia region, the current essay tries to present a review on possibility of iran’s transition to economic development. it is supposed that the ground is prepared for iran’s transition to development through effective state intervention in economy. unlimited access of iran to a ve...

پیمان صاحب‌سرا, ,

We study the Mott transition in the two dimensional Hubbard model by using the variational cluster approximation. The transition potential obtained is roughly Uc ≈ 2 and 6 for square and triangular lattices, respectively. A comparison between results of this approximation and other quantum cluster methods is presented. Our zero-temperature calculation at strong coupling show that the transition...

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