introduction: the pericranial flaps' benefits have been described in many otolaryngologic, maxillofacial and plastic surgery literature. the benefits ar e due to the pericranial flaps unique characteristics including good flexibility and mobility, very rich blood supply from several arterial sources and access to sufficient bulk of the flap without any need for distant surgical sites. usin...

this field study was conducted  to investigate barriers to applying principles of management in wards of tehran university on medical science hospitals: head nurses' viewpoints .75 hednurses who  were working  in selected hospitals affiliated to tehran university of medical sciences. the data collection tool was a questionnaire that  it,s validity and reliability was obtained using content...

introduction: head circumference (hc) measurement is one of the important parameter for diagnosis of neurological, developmental disorders and dysmorphic syndromes. recognition of different disorders requires an understanding of normal variation for hc size, in particular, in infancy period with most rapid growth of the brain. because of international and interracial standard chart differences ...

abstract the groines are structures which are use to protected the river bank and to form the water way .the most important problem of groynes is scour at around it that makes breaking and overturning the groynes. because of the less researches at about l-head groynes and open groynes ,this article considers the amount of scour in this type of groynes. so because of this have been used the lace...