Ω b → Ω c , Ω * c transitions: Model-independent bounds on invariant form factors. Abstract In this note we report some model-independent bounds involving transition form factors for Ω b → Ω c and Ω b → Ω * c and the nonperturbative matrix elements of the Ω b system. They are derived by using operator product expansion (OPE) in Heavy Quark Effective Theory. [5cm]

in order to survive in today's competitive world, organizations are looking to increase their efficiency and effectiveness. therefore, they should focus on inputs that are more important than the rest of the inputs in their success. this paper aimed at ranking 7ms (management, man power, marketing, material, machinery, methods and money) and their sub-criteria of production in iran. by imp...

abstract background: technical, human, operational and organizational factors have been influencing the sequence of occupational accidents. among them, organizational factors play a major role in causing occupational accidents. the aim of this research was to understand the iranian safety experts’ experiences and perception of organizational factors. methods: this qualitative study was conducte...

Not only in Iran, but throughout the world, banks and banking industry are considered as very important parts of the economy. This study seeks to investigate the impact of the internal characteristics of banks, the structure of the banking industry and the economic situation of Iran on the profitability of the banking system of Iran by exploring the theory of the Structuralism school concerning...

abstract this purpose of this research was to recognizing effective factors on using production risk management among wheat farmers in ilam province and is done in the general framework of survey research. statistical population consists of all wheat farmers in ilam province which amounted to 55000 people that statistical sample was determine amounted 380 people by using krejcie and morgan tabl...

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