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25183 documents, page 1 of 2519

مقایسه هزینه- اثربخشی سیستم‌های لجن فعال با سیستم‌های طبیعی تصفیه فاضلاب در استان کرمانشاه

علی الماسی; عبداله درگاهی; سهراب دل انگیزان; امیر حسین هاشمیان; مرضیه نادری (2016)
برای امکان‌سنجی اقتصادی بودن تصفیه‌خانه‌های فاضلاب، روشی مورد نیاز است که این سیستم‌ها را از نظر هزینه-اثربخشیمورد بررسی قرار دهد. این مطالعه با هدف ارزیابی هزینه‌بری و اثر بخش بودن سیستم‌های تصفیه فاضلاب موجود در استان کرمانشاه صورت گرفت. مطالعه از نوع توصیفی- تحلیلی بوده و اطلاعات مربوط به تصفیه‌خانه‌ها از شرکت‌های آب و فاضلاب و بهره‌برداران تصفیه‌خانه‌ها جمع‌آوری شد و با استفاده از برنامه آماری SPSS مورد تجزیه و تحلیل قرار گرفت. تمام هزینه‌ها و راندمان فرایندهای تصفیه بررسی شد و شاخص هزینه...

بررسی علل، روش‌های درمانی و عواقب حاملگی در بیماران با خونریزی‌های غیرطبیعی در سه ماهه اول بارداری

صنم مرادان; انسیه جهانشیر (2016)
مقدمه: بیش از 25% از زنان باردار در سه ماهه اول و اوایل سه ماهه دوم بارداری دچار خونریزی می‌شوند که در نیمی از این بیماران سقط اتفاق می‌افتد. علل و روش‌های مختلفی برای تشخیص و درمان خونریزی‌های دوران بارداری وجود دارند. با توجه به شیوع نسبتاً بالای خونریزی‌های سه ماهه اول بارداری و روش‌های تشخیصی و درمانی توصیه شده، مطالعه حاضر با هدف بررسی علل، شیوه‌های تشخیصی و درمانی و عواقب حاملگی این بیماران در بخش زنان بیمارستان امیرالمومنین سمنان انجام شد. روش کار: این مطالعه مقطعی و آینده‌نگر در سا...

Study of the yield and its components of chamomile (Matricaria chamomilla L.) under drought stress and organic and inorganic fertilizers using and their residue

A. Ahmadian; A. Ghanbari; B. Siahsar (2016)
Management of organic and inorganic fertilizer application and residual of them are very important in their effect on environment and plant yield. In order to determine the effect of drought stress and different amendments on flower, essential oil and Chamazulene yield and its components of Matricaria chamomilla L., this study was conducted as a split plot design with three replications, at Agricultural Research Station of Zabol University, Iran, during two growing seasons of 2007-2008 and 20...

The effect of a six-week combined aerobic-resistance training program along with green coffee consumption on anxiety and depression in overweight and obese women

Zivar Hassani; Fatemeh Izaddost; Ramin Shabani (2017)
Background: Chlorogenic acid, a major polyphenol in green coffee, and physical activity are considered as two possible effective factors on anxiety and depression. The aim of this study was to evaluate the effect of a six-week combined aerobic-resistance training along with green coffee consumption on anxiety and depression in overweight and obese women. Materials and Methods: In this semi-experimental study, 30 volunteer overweight and obese women were randomly divided into three group...

An Evaluation of the Quality of Teaching

Hadi Ghasemi; Abdolhamid Zafarmand; MohammadReza Nakhostin (2013)
Introduction: It has been a decade since the course “Community Oral Health” has been revised. The aim of this study was to evaluate how the course of community oral health is being taught in the undergraduate program of dental schools in Iran after a decade of revisions.Materials & Methods: In spring 2010, dental schools have been requested to report how the course of community oral health is being taught in terms of content and format, number of credits and the distribution of the credits al...

Alterations in body weight and blood glucose level of female hamsters exposed to electromagnetic fields of cell phones

A.R Lotfi; H Aghdam Shahryar (2010)
Microwaves such as those emitted from electromagnetic fields of cell phones can penetrate live tissues and results in changes of ion distribution in membranes and may interfere with metabolic reactions. Considering the increasing use of cell phones, in the present study the effects of 900 MHz electromagnetic fields of cell phones on body weight and blood glucose concentration of adult hamsters were investigated. Seventy two female hamsters were randomly allocated into three experimental group...

Expression of Some Genes Involved in Epigenetic in Breast Cancer Cell Lines: The Effect of Quercetin

fahime mohamadian; mehdi mahmoodi; mohamadreza mirzae; alireza khoshdel; mahmood sheikh fathollahi; nahid zeinodini; mohamad reza hajizade (2015)
Background & Objectives: Breast cancer is one of the most common cancers among women. Incorrect pattern of gene expression involved in epigenetic including APOBEC3B, DNMT-1, and TET-1 can develop breast cancer. Quercetin is a natural flavonoid with antioxidant and anti-cancer properties that have been reported in other studies. To investigate the effect mechanism of quercetin, this study examined the effect of quercetin on the expression of genes which were referred to in two classe...

Causes and Severity of Fatal Injuries in Autopsies of Victims of Fatal Traffic Accidents

F Panahi; H Khoshmohabat; HR Taghipour; N Hojati Firoozabadi; Y Moharamzad; AR Abbasi (2010)
Introduction: In this retrospective study, we decided to determine the death causes and severity of injuries in traffic accidents according to reports of the forensic medical center of Yazd. Methods: A total of 251 fatalities due to traffic accidents that had undergone autopsy examinations at the Yazd forensic medicine center from2006 till 2008 were included in the study by census method. Data regarding gender, road user type, type of vehicle (car, motorcycle, autobus or minibus), consciousne...

Relationship between Body Mass Index and Bone Mineral Density in 45-55 Aged Women Referred to Imam Khomeini Hospital from 2000 to 2004

A Khalvat; S Dehghan-Dehnovi; R Najafizadeh (2004)
Introduction: Fat body mass and body mass index (BMI) are important determinants of bone mineral density (BMD). Although the mechanism involved in this relation is uncertain, it seems that aromatization of androgens to esteradiol in adipose tissue is the most important explanatory mechanism. Materials & Methods: The purpose of this study is to evaluate the correlation between BMI and BMD among 63 women aged 45 to 55; 36(57.1%) postmenopausal and 27(42.9%) premenopausal; referred to Imam Khome...

Evaluate the Spatial Distribution of ICT Indicators in Fourteen Areas of Isfahan Municipality

Ahmad Shahivandi; Hamid Reza Varesi; Mahmood Mohamadi (2012)
Today, one of the criteria for the assessment of development of countries, international organizations and world economy is the achievement of the level of ICT. In addition, a fair distribution of this tool for better and update services is very important. The purpose of this study was to assess the spatial distribution parameters and hardware experts in the areas of ICT and informatics users fourteen municipality of Isfahan. Descriptive research method was analytic and for ranking, grading a...