نتایج جستجو برای: duration of trade

تعداد نتایج: 21181672  

2010
Wolfgang Hess Maria Persson

The objective of this paper is twofold. First, against the background of an existing empirical literature on the duration of trade which has found that international trade is often of strikingly short duration, we aim to establish whether or not EU imports from the rest of the world also are short-lived. Second, since there is at this point no clear commonly accepted theoretical explanation for...

1999
T. G. Rizzo

We explore the consequences of placing the Standard Model gauge fields in the bulk of the recently proposed localized gravity model of Randall and Sundrum. We find that the Kaluza Klein excitations of these fields are necessarily strongly coupled and we demonstrate that current precision electroweak data constrain the lowest states to lie above ' 23 TeV. Taking the weak scale to be ∼ 1 TeV, the...

2015
Sergey I. Kruglov Sergei D. Odintsov

A new gravity model with the function F (R) = (1/β) arctan (βR− βR) instead of the Ricci scalar in the Einstein–Hilbert action, describing inflation of the Universe, is suggested and analyzed. We obtain constant curvature solutions of the model in the Jordan frame. Performing the conformal transformation of the metric, the potential and the mass of a scalar degree of freedom in the Einstein fra...

Journal: :acta medica iranica 0
fatemeh laloha department of gynecology, school of medicine, qazvin university of medical sciences, qazvin, iran. negin mahboob asiabar department of gynecology, school of medicine, qazvin university of medical sciences, qazvin, iran. ameneh barikani department of community medicine, school of medicine, qazvin university of medical sciences, qazvin, iran. farideh movahed department of gynecology, school of medicine, qazvin university of medical sciences, qazvin, iran. ezzatossadat haj seyed javadi department of gynecology, school of medicine, qazvin university of medical sciences, qazvin, iran.

the use of corticosteroids is one of the methods put forward for the strengthening and speeding up the process of labor. after identification of glucocorticoid receptors in human amnion, the role of corticosteroids in starting the process of labor has been studied in numerous studies.the purpose of this study was to determine the effect of intravenous dexamethasone on preparing the cervix and o...

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