Background: One of the most important nonenzymatic antioxidant defense systems is vitamin A, and is considered as an important dietary agent for reducing cardiovascular diseases. Objective: The objective of this study was to investigate the serum vitamin A status in women who used low-dose oral contraceptives (OCs) containing 0.15 mg levonorgestrol and 0.03 mg ethinyl estradiol and also in...

due to the fact that assets are recorded at their historical value and they may include unrealized gains (losses), managers may manipulate earnings through the sale of these assets and provide financial information which is not accurate and reliable. the aim of this study is to investigate the relationship between income from asset sales, earnings change and leverage of companies listed on tehr...

Background: Retinopathy is one of chronic complications of diabetes mellitus and is the most common cause of blindness in developed countries between ages 20-70 years old. The aim of this study was to investigate the prevalence of retinopathy and related factors on Iranian population. Materials and methods: This is a descriptive cross-sectional study on a population of diabetic patients r...

introduction: non-alcoholic fatty liver is one of the most prevalent digestive diseases in the world and its prevalence is increasing rapidly. the objective of this study was to compare the treatment effect of pioglitazone and metformin on fatty liver. materials and methods: this double blinded clinical trial study was performed in 2012 among patients referring to gastrointestinal clinics in th...

the aim of this study was investigating the relationship of humor styles, emotional intelligence and social competence in university students of tehran. the sample of this descriptive-correlational study included 395 students (196 male and 199 female) from faculties of technical sciences and humanities in universities of tehran, shahid beheshti and kharazmi who were selected through cluster ran...

objectives: the purpose of this study was to investigate the relation of personality traits with depression in active and non – active elderly women in tehran city. methods & materials: the present research is descriptive–correlation. for this purpose, 188 elderly women (94 active and 94 non - active elders) in the age range of 63-82 in tehran city availably selected as statistical sample. meas...

This document captures experiences in implementing systems based on the ENUM protocol and experiences of ENUM data that have been created by others. As such, it clarifies the ENUM and Dynamic Delegation Discovery System standards. Its aim is to help others by reporting both what is "out there" and potential pitfalls in interpreting the set of documents that specify the ENUM protocol. It does no...