Background: Caustics produce one of the most serious complications of poisonings. This research was aimed to study demographical, clinical and endoscopic findings in patients with corrosive injury. Methods: In a retrospective survey, all records of the patients who had been admitted to Razi and 17th Shahrivar hospital in Rasht city due to the ingestion of caustic agents during 2002-2009 and en...

nowadays in consequence of widespread changes of corporate governances, chairman of the board has more real authorities on company decisions and due to his significant role in board leadership, is under the pressure of performance expectations. however, these changers are not made as it deserves in iran and in spite of various effects of chairman leadership on board culture – especially team pr...

OBJECTIVES The event of menarche is an exceptional phenomenon, which occurs once in a lifetime. It is the precursor of future fertility. The onset of menarche is mainly dependent on genetic factors, however geographical and nutritional factors among other factors have been attributed to the events of menarche. The aim of this study is to determine the age of onset of menarche and the factors wh...

INTRODUCTION. Arteriovenous fistulas and grafts are two common permanent access methods for hemodialysis. Selection of an appropriate access, appropriate surgical techniques, and treatment of complications are basic principles of long-term maintenance of vascular access. We aimed to assess the survival of arteriovenous fistulas and grafts in our dialysis center. MATERIALS AND METHODS. A total o...

Background: The entry of heavy metals into the food chain is an important environmental challenge for humans. Due to their potential accumulating in body, different aspects hazard posed by should be carefully examined. Objectives: present study was conducted determine concentrations such as Arsenic (As), Cadmium (Cd), Chromium (Cr), Lead (Pb), and Nickel (Ni) tuber crops i.e., potatoes onions R...

background helicobacter pylori (h. pylori) infection usually occurs during childhood, especially in developing countries. the aim of this study was to evaluate the prevalence of h. pylori infection among children in primary schools of rasht, a northern iranian city. methods this cross-sectional study was conducted among 961 primary school students in rasht. samples were randomly selected and st...