نتایج جستجو برای: domain
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an essential issue from the very outset of the field of public administration was to find proper limits of bureaucrats authorities in a democratic state .contemporary research on the issue lead to emergent of two set of theories. the first is theories of political control of bureaucracy and the second is theories of bureaucratic politics. the research is against theoretical efforts and is consi...
obtaining a seismic section with high temporal and spatial resolution was always one of the goals of seismic data processors and interpreters. accurate estimation of the thicknesses of thin beds is an important tool in this regard. the basic problem is that the wavelength of the signal must be similar in dimention to that of the bed thinness. if it is much longer than the bed thinness, the dete...
سخن سردبیر editorial مجله دانشگاه علوم پزشکی رفسنجان دوره 13، اسفند 1393، 1104-1103 ضرورت نگارش مقالات علمی با ارزش تر در حوزه سلامت the necessity of writing more valuable articles in health domain محسن رضائیان[1] m. rezaeian شواهد و مدارک موجود نشان می دهند که تعداد مقالات منتشر شده در حوزه سلامت به سرعت فزاینده ای در حال رشد می باشند. برای مثال، برآوردها نشان می دهند که در فاصله...
Let $D$ be an integral domain with quotient field $K$, $E$ be a $K$-vector space, $R = D propto E$ be the trivial extension of $D$ by $E$, and $w$ be the so-called $w$-operation. In this paper, we show that $R$ is a $w$-FF ring if and only if $D$ is a $w$-FF domain; and in this case, each $w$-flat $w$-ideal of $R$ is $w$-invertible.
Background and purpose: Clostridium botulinum bacteria produces seven types of botulinum neurotoxins among which types A, B, E and F are responsible for human botulism. One of the treatments for botulism is the inhibition of botulinum neurotoxins catalytic domain activity by inhibitors. In this study, botulinum neurotoxin type E catalytic domain has been cloned in pET28a vector and expressed in...
Introduction: Bank staff experience high level of job stress due to the nature of their work. One of the consequences of stress is its impact on job performance. Since the internal studies in this area are relatively rare, this study was conducted to investigate the relationship between the psychosocial stressors and job performance among bank staff. Materials and Methods: All staff of the ban...
Time-frequency filtering is an acceptable technique for attenuating noise in 2-D (time-space) and 3-D (time-space-space) reflection seismic data. The common approach for this purpose is transforming each seismic signal from 1-D time domain to a 2-D time-frequency domain and then denoising the signal by a designed filter and finally transforming back the filtered signal to original time domain. ...
Abstract: The main purpose of this paper is introducing modelling and application as a research domain in mathematics education through reviewing related literature. The first purpose of this review is to give a more clear meaning of modelling and application, and base on that, makes the distinction between modelling in mathematics education & modelling in other scientific domains. There are so...
Let K be a locally compact hypergroup. In this paper we initiate the concept of fundamental domain in locally compact hypergroups and then we introduce the Borel section mapping. In fact, a fundamental domain is a subset of a hypergroup K including a unique element from each cosets, and the Borel section mapping is a function which corresponds to any coset, the related unique element in the fun...
The generalized coupled thermo-viscoelasticity of hollow sphere subjected to thermal symmetric shock load is presented in this paper. To overcome the infinite speed of thermal wave propagation, the Lord-Shulman theory is considered. Two coupled equations, namely, the radial equation of motion and the energy equation of a hollow sphere are obtained in dimensionless form. Resulting equations are ...
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