the existence of eight imitations and five translations of hosn va del into other languages such as english and german shows the importance of this persian book of verse. many researchers have sought the sources of this work and some sources have been mentioned, but the imitation of sibak neishaburi from nezami’s khosrow va shirin, as the most important source of this work, has not yet been m...

in this study, he’s variational approach (va) is used to solve the non-naturalvibrations and oscillations. the method works very well for the whole range of initial amplitudesand does not demand small perturbation. it is also sufficiently accurate to both linear and nonlinearphysics and engineering problems. we consider some examples to illustrate the effectiveness andconvenience of the method....

Reading a book is also kind of better solution when you have no enough money or time to get your own adventure. This is one of the reasons we show the beyond deficiency new views on the function and health effects of vitamin as your friend in spending the time. For more representative collections, this book not only offers it's strategically book resource. It can be a good friend, really good f...

Background: Knowledge of variations in the origin of vertebral artery (VA) is indispensable to vascular surgeons. Aberrant origin of vertebral artery on either side is an uncommon finding. There are unilateral and bilateral variability in VA origin. Case presentation: We present a case of vertebral artery dissection who was found to have bilateral VAs aberrant origin. The right VA took origin ...