The power and role played by social media in developing social and political movements for political changes in North Africa and the Middle East have transformed how social media viewed and used. To date, few IS studies have investigated the role of Information Systems in the context of politics. The goal of this paper is to understand the role of social media including micro-blogs and social n...

In this study, the effect of deposition regime on the wear behavior of VK8 coating applied to 1.2344 tool steel by electro spark method (ESA) was investigated. After sample preparation, the coating with high and low regime was applied. To assess the wear behavior, the pin on disk test method according to ASTM G99-04, was used. For surveying surface morphology and cross section of the coating as...

“Egypt is offline”. At the time when this news came over the ticker on 2011-01-28, the so-called “Facebook revolution” had already reached a new high. According to Hosni Mubarak, who was still president of Egypt to that time, and according to his regime, it was no longer sufficient to sporadically shut off cellular networks and social media services, such as Facebook, Twitter, etc. Instead, the...

 Taxation is one of the significant phenomena in any economy as it not only generates revenues for existing government, but also serves as a fiscal tool and stabilization policy. One of the main types of taxation is the petroleum tax which accounts for more than 30% of revenue for developed countries and more than 85% for developing economies. This work focuses on petroleum producing giants in ...

abstract in order to study the effects of irrigation regimes and plant spacing on bulb yield of two onion (allium cepa l.) genotypes, an experiment was conducted at kabootar abad research station of isfahan during two growing seasons (2005 and 2006). the experiment design was split-factorial with a randomized complete block arrangement with four replications. main plots included three irrigatio...