conclusions the major finding of this study is that one unit increase in serum creatinine level suggests an increased risk of graft failure of up to four times. patients and methods this study was carried out at the department of nephrology, baqiyatallah hospital, baqiyatallah university, tehran, iran, between april 2005 and december 2008. during that time period, 461 patients who had undergone...

This article critically analyses the Longman Defining Vocabulary (LDV) in relation to its size, range and frequency, senses, parts of speech, affixes, and multiword expressions. The recent versions of the LDV contain a relatively fixed number of items. Over 85% of those items were found to be highly frequent, and for the defining purpose, genus terms, grammatical terms, etc. have also been incl...

Role-based access control (RBAC) is a popular access control model for enterprise systems due to its flexibility and scalability. There are many RBAC features available, each providing a different function. Not all features are needed for an RBAC system. Depending on the requirements, one should be able to configure features on a need basis, which reduces development complexity and thus fosters...

Planning is a core field of Artificial Intelligence since its beginnings. Broadly speaking, planning techniques aim at providing artificial agents with the capability to autonomously solve ”complex” problems. Several planning techniques have been introduced in the literature that employ different approaches for modeling and solving planning problems. My PhD research activities concern timeline-...

It is undeniable that SMEs face many management-related problems. These problems are often deeply rooted in the strategic decision making by managers. One of these decisions is associated with the production section. Many of these companies provide production infrastructure at high costs; however, they are unsuccessful in acquiring their market share. In these circumstances, providing a solutio...

[1] Component-based modeling is an approach for simulating water resource systems where a model is composed of a set of components, each with a defined modeling objective, interlinked through data exchanges. Component-based modeling frameworks are used within the hydrologic, atmospheric, and earth surface dynamics modeling communities. While these efforts have been advancing, it has become clea...

In this paper, an integrated approach for the modeling and the validation through simulation of multi-agent systems is proposed. The approach centers on the instantiation of a software development process which specifically includes a simulation phase which makes it possible the validation of a multiagent system before its actual deployment and execution. The approach uses the Gaia methodology ...