introduction: genetic and health factors along with ethnicity and geographic location are factors that affect the time of puberty onset. the aim of the present study was to evaluate the mean age of onset of puberty and its stages in boys of yazd. methods: this cross- sectional study with random clustering sampling method was conducted on 1018 healthy 9-16 years old male students of yazd. all ca...

introduction: osteodystrophy is one of the long term complications of chronic renal failure and is expressed in two formslow turn over and high turn over. it is an important cause of morbidity in patients with renal failure and if diagnosed and managed properly, many problems of these patients can be resolved. in this study we evaluated the prevalence of hyperparathyroidism in hemodialysis pati...

Let $R$ be a commutative ring with identity and let $M$ be an $R$-module. In this paper, we will introduce the secondary radical of a submodule $N$ of $M$ as the sum of all secondary submodules of $M$ contained in $N$, denoted by $sec^*(N)$, and explore the related properties. We will show that this class of modules contains the family of second radicals properly and can be regarded as a dual o...

secondary aortoenteric fistula (saf) is an uncommon but very important complication of abdominal aortic reconstruction. the complication often occurs months to years after aortic surgery. the clinical manifestation of the aortoenteric fistula is always upper gastrointestinal bleeding. treatment of the disease is early surgical intervention. if operative treatment is not performed promptly, the ...

crossbite is a term used to indicate an abnormal buccolingual (labiolingual) relationship of the teeth and can results in unfavorable effects when it is left untreated.the last growth spurt which occurs about the age of 11-12 years in females and 14-15 years in males,can be useful to plan treatment of this malocclusion.therefore,this investigation was designed to determine the prevalence of den...

purpose: to report two cases of conversion disorder with unilateral psychogenic pseudoptosis. case reports: the first case was 21 years old man who developed sudden ptosis of his left eye, since 2 weeks ago. the patient had episodes of upper lid drooping during the last 7 months; the second case was a 10 years old girl with history of ptosis since 6 months, after viral conjunctivitis. all neuro...

background: pediculosis capitis is a problem in children and has worldwide distribution. the aim of the present study was to determine the prevalence of pediculosis degree and its relevant factors in the secondary schools in hamadan west of iran. methods: the study was carried out in two phases. a cross-sectional procedure was used to determine the prevalence of pediculosis, and the case study ...

objective: the growing resistance of different bacteria to antibiotic chemical drugs have become the global issue. this investigation is the first study of the antimicrobial activity of the essential oil of flowering aerial parts of vaccinium arctostaphylos. the current research was conducted to evaluate the antibacterial effects of essential oils and hydroalcoholic extract  extracted from aeri...