نتایج جستجو برای: pi
تعداد نتایج: 44133 فیلتر نتایج به سال:
objective: the present study aimed to explore the relationship between worry and obsessive compulsive symptoms. we examined the correlations between the padua inventory (pi) and the penn state worry questionnaire (pswq) to further explore the distinctiveness of the pi. method: seventy-five subjects (n=40 male, n= 35 female) were selected from hafez hospital (iran) for this study: the subjects i...
Background: Externalization of PS (EPS) is considered as a sign of early apoptosis. In addition, EPS also occurs during capacitation and the acrosome reaction. During this study we aimed to evaluate the relationship between EPS and fertilization, embryo quality and pregnancy outcomes in couples who were candidates for ICSI. Materials and Methods: Semen samples (n = 43) were collected from infer...
background: the p ulsatility index (pi) shows continuous blood flow to the end organs and is a significant factor believed to decrease in aortic coarctation. correction of this factor is of great importance in the treatment of stenotic lesions of the aorta. however, there are minimal data regarding the trend of changes in the pi after stent implantation. furthermore, the association between the...
برنج رقم طارم دیلمانی از نظر عطر، طعم، پخت و بازار پسندی جزء برنجهای کیفی ایران است. این رقم در مقابل بیماری بلاست (magnaporthe grisea) حساسیت بالایی دارد. یکی از مشکلات مهم تولید کنندگان برنج رقم دیلمانی مبارزه شیمیایی با بیماری بلاست و در نتیجه آن آلودگی زیست محیطی می باشد. بهترین روش کنترل این بیماری و جلوگیری از خسارت آن تهیه و کشت رقم مقاوم می باشد. برای تهیه رقم مقاوم در این پژوهش از روش ...
Some consequences of an isotensor component of the electromagnetic current are examined in simple pion photoproduction. An experiment to detect the isotensor contribution, in pion photoproduction from deuterium already suggested by several authors, is reformulated to improve the sensitivity of the test. To estimate how accurately the experiment should be performed, upper bounds on the strength ...
Abstract The interactions of D̄Σc-D̄Λc, D̄ Σc-D̄ Λc, and related strangeness channels, are studied within the framework of the coupled channel unitary approach with the local hidden gauge formalism. A series of meson-baryon dynamically generated relatively narrowN∗ and Λ∗ resonances are predicted around 4.3 GeV in the hidden charm sector. We make estimates of production cross sections of these pred...
Recent progress in using effective field theory to describe systems with two nucleons is discussed with particular emphasis placed on the inclusion of pions. Inconsistencies arising in Weinberg’s power counting are demonstrated with two concrete examples. A consistent power-counting scheme is discussed in which pion exchange is sub-leading to local four-nucleon operators. NN scattering in the S...
We point out that the ∆π component of the nucleon wave function is vital to the interpretation of the recent H1 data for leading baryon production. While the n/p ratio is equal to two with the N π component alone, the inclusion of the ∆π component brings this ratio very near to unity, as observed in the experiment. This result demonstrates that pion exchange can not only account for leading neu...
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