children under 5 years old are the most vulnerable age group in car accidents. researchers showed that application and correct use of child safety seats can reduce the risk of fatal injury by 71 percent for infants and 54 percent for toddlers. the purpose of this review is to identify factors and procedures that declare the correct use of child car seats which prevent children head injuries tha...

background: pediculus capitis (anoplura: pediculidae) or head louse is an obligate ectoparasite transmitted mainly through physical contact. this study was conducted to survey the prevalence of head lice infestation rate and some risk factors in primary school pupils, in khajeh city east azerbaijan province, iran. methods: we selected 20 primary schools of khajeh city during 2008 and 2009. tota...

a bstra ct background: effective time management is considered important for managers for achieving the goals in an organization. head nurses can improve their efficiency and performance with effective use of time. there has always been a lot of disagreement in understanding time management behaviors of head nurses; therefore, the present study was conducted with an aim to compare the understan...

background: footwear with a curved “rollover” sole is prescribed to improve walking capability. shoes with a curved sole profile have been reported to alter ankle, knee and hip kinematics and posture and thought to able to modify head and neck, and trunk posture. therefore, the aim of this study was to investigate the immediate effects of rollover footwear on standing posture of head and neck, ...

background: according to previous studies, variable percent of nurses suffering from psychological problems or disorders. identifying preventive factors of psychological disorders to be used more frequently and risk factors of these disorders to eliminate them are essential in improving mental health of staff. the present study aims to assess the relationship between motivational function of he...

background: patient radiation doses from computed tomography (ct) are increasing due to the number of ct examinations performed every day. the aim of this study was assess and evaluate patient radiation doses for adult’s common ct examinations to derive local diagnostic guidance levels for common ct examinations. materials and methods: volume and weighted computed tomography dose index (ctdivol...

The dynamic analysis of the biomechanical model of the head load impact using the Differential Transform Method is presented in this paper. In many parts of the world, the problem of traumatic brain injuries (TBI) has led to neurodegenerative dementing disorders and diseases as a result of head load impact from sporting activities, accidents involving the head, etc. have serious effects on huma...

introduction: in iran, thousands of young individuals become victims of head injury annually. head injury can damage neuronal cells which may in turn complicate the recovery of the patients. also, the increase of iron in cerebrospinal fluid (csf) following head injury may contribute to the hypoxic-ischemia brain damage by catalyzing the formation of free radicals (harber-weiss rection). the obj...

introduction: acquired immunodeficiency syndrome (aids) is a worldwide infection. because of the vast array of manifestations of aids and its many atypical presentations, it is becoming increasingly challenging for clinicians to accurately diagnose new lesions. materials and methods: in a descriptive cross-sectional study conducted from 2007 to 2010, 50 patients with a proven human immunodefici...