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تعداد نتایج: 16574959 فیلتر نتایج به سال:
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
به طور کلی در فرآیندهای مارکوف ارگودیک دو بعدی یافتن فرم بسته توزیع ایستا، تنها برای حالات خیلی خاص امکان پذیر است. با توجه به این مشکل و نیز با توجه به اهمیت توزیع ایستا، بررسی و مطالعه رفتار مجانبی توزیع ایستای این فرآیندها مورد توجه قرار گرفته است. زنجیر قدم زدن تصادفی دو بعدی که در برخی متون به آن، فرآیند qbd دو طرفه نیز می گویند، یکی از این فرآیندها است. یک فرآیند qbd زمان گسسته یک زنجیر م...
section{introduction} the concept of {sl cartan geometry} appeared at the beginning of the twentieth century, when {e}lie cartan was working on the so-called {sl equivalence problem}, the aim of which is to determine whether two given geometric structures can be mapped bijectively onto each other by some diffeomorphism. this problem can be considered in many different contexts, such as ...
Until recently little research had been undertaken into the process of eCommerce implementation, especially in relation to the implementation of business-to-business (B2B) relationships. Given the complexity of this process we have, in this paper, endeavoured to contribute to what we perceive as a gap in the body of theory surrounding the implementation process in the extant business-to-busines...
E-government is far too often taken to mean ‘government business as usual’ plus the internet. This paper puts forward the basis for an alternative orientation, locating e-government against a background of profound social changes.
AbstrAct Interorganizational systems (IOS) play a critical role in today's e-commerce environment. These systems are introduced by different organizations following different adoption processes. Existing literature on IOS adoption, however, does not explain the variations in the IOS adoption processes initiated by different organizations. A theory of IOS adoption known as IOS Motivation Model (...
This project applies the action research educational method to the application and evaluation of the Community of Practice (CoP) principle to eScience postgraduate project courses in IT at the Australian National University. A CoP was formed comprising of the seven graduate students enrolled in the various eScience project courses and the project co-ordinator (the author) of the first semester ...
Internet business models have been widely discussed in literature and applied within the last decade. Nevertheless, a clear understanding of some e-commerce concepts does not exist yet. The classification of business models in e-commerce is one of these areas. The current research tries to fill this gap through a conceptual and qualitative study. Nine main e-commerce business model types are se...
Although there have been many grand visions for the transformative capacity of e-Government initiatives, the actual realization of these visions has met with mixed results. This paper argues that current approaches to appraising the benefits and consequences of e-government initiatives are constrained by a narrow technologically determinist perspective focused on ICT investment rather than poli...
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