the purpose of this study was to examine the relationship of physical activity levels with sleep duration (sd), and self-rated health (srh) using the fifth korean national health and nutrition examination survey data from 2010 and 2011.overall, 12,188 korean people were evaluated in relation to meeting guidelines for vigorous pa (mvpa), moderate pa (mmpa), and low pa (mlpa) associated with sd a...

Promoting the development of renewable energies and the efficient and intelligent use of energy could be achieved through making adaptive consumer demands to energy supply. In this paper, we propose a mechanism based on three time scales, year, day and hour and three sets of agents, consumers, aggregators and providers to adapt consumption to production. We propose to use in this model the brea...

Usenet is a decentralized discussion community predating blogs by decades. Just as there are a wide range of political blogs, many Usenet sub-communities focus on politics. However, we find these two communities are very different in terms of source content. In this work we compare linking patterns of the political Usenet with a well-known political blog and news aggregator, Memeorandum, with r...

news about iran-iraq war outbreak in world press and their analysis of this war has been considered in this essay. its method is content analysis using statistical data. analyzed news is related to a two-year period. each news headline trend will be discussed in a special format

Managers are responsible for providing financial statements and they might try to make a good picture of their firm's conditions. Therefore, they try to delay the disclosure of bad news and release the good news as soon as possible. The ten-dency of managers toward hiding bad news increases the stock price crash risk. The protection of investor is one of the factors that can prevent from fallin...

because of the newness of information technology (it) and internet in the world, and because of intrinsic constraint of multimedia and traditional news systems such as: newspaper, bulletin, radio and television in interactive communication, diffusion of news and information in internet has possessed special situation. but it is possible sometimes that the use of internet doesn’t achieve anticip...