ambiguity and obscurity are frequently used to indicate a similar meaning yet there are real differences between them. the ambiguity is an affirmative concept in arabic poetry, and the critics consider it as an artistic standard in best literary samples. whereas, obscurity is a negative concept which results to the lack of text's values of skillfulness. this article deals with an explanation of...

Much research is underway on the links between diet and obesity. So too are long-running disputes among nutritionists on core questions about the relationship. This editorial reviews the state-of-play on four issues: what makes people fat, how to lose weight, how much do we eat, and what policies to adopt towards obesity. The practical consequence is that, at present, frontline health professio...