گل بابایی, فریده

علوم پزشکی تهران

[ 1 ] - مواجهه با استرس گرمایی در محیط های شغلی (مطالعات میدانی): مطالعه مروری سیستماتیک

Background:and aims Working in hot environments is one of the common physical risks factor in the workplace, which can also cause heat-related illnesses and various health effects on workers, and also increasing the risk of injuries and occupational accidents. The purpose of this paper is review conducted studies about heat stress in different countries, investigation the indices of heat stress...

[ 2 ] - بررسی کاربرد پذیری شاخص حرارتی ناراحتی اصلاح شده(MDI) در مشاغل روباز: مطالعه موردی معادن روباز استان تهران

Background and aims: Regarding development of several thermal indices and limitations of these indexes, in this research we were examined the applicability and validity of Modified discomfort index (MDI) in Outdoor occupational environments.  Methods: This cross-sectional study was done on 175 subjects in summer (2016) in 12 mines construction materials of Tehran Province. Environmental...

[ 3 ] - ساخت و بهینه‌سازی نانوالیاف پلی آکریلونیتریل برای کاربرد در فیلتراسیون هوا

Background and aims: In nanofibrous filters, morphological properties, diameter of fibers and porosity percent of media are the most filtration characteristics. Therefore, the present study aimed to optimize the electrospinning parameters for reaching to the desired values of the mentioned filter characteristics. Method: For this purpose, a study design was prepared using response surface me...

[ 4 ] - نسبت منگنز به آهن خون (Manganese-Iron Ratio: MIR) به عنوان یک بیومارکر بالقوه در ارزیابی مواجهه شغلی با منگنز

Background and aims: Biological monitoring plays an important role in occupational exposure assessment. The aim of present study was to assess Manganese-Iron Ratio (MIR) as a potential biomarker for manganese. Methods: This cross-sectional study was carried out in an automotive parts manufacturing industry in Tehran, Iran. 31 ferroalloy smelters as exposed group (cases) and 30 office workers...

[ 5 ] - کاربرد روش استخراج فاز جامد و جاذب XAD-4 جهت تعیین مقدار کادمیوم در نمونه های مو و ناخن کارگران یک صنعت فلزی

Background and aims: Cadmium is a common industrial and environmental contaminant causing adverse health effects on respiratory system and kidney. This has been classified as a human carcinogen. Biological monitoring of cadmium and its measurement in urine, hair, and nail samples can be considered as an evaluation of the internal dose. Because of trace concentration of analytes in biological sa...

[ 6 ] - مطالعه‌های تعادل و سینتیک جذب زیستی کروم شش ظرفیتی از محلول‌های آبی با استفاده از دانه‌های پلیمر زانتان B82

کروم شش ظرفیتی )6+(Cr عاملی سرطان‌ زا در انسان می ‌باشد که مواجهه شغلی با آن، انواع گوناگونی از عوارض مانند زخم و سوراخ شدن بینی، درماتیت تماسی، تحریک دستگاه تنفس و آسم شغلی را در پی دارد. در این مطالعه ایزوترم و سینتیک جذب زیستی 6+Cr به وسیله پلیمر زانتان B82 در فاز منقطع در مقیاس آزمایشگ...

[ 7 ] - بررسی عمل کرد فیلترهای معمولی و فوتوکاتالیتیکی هپا در حذف میکروارگانیسم‌های هوابرد

Introduction: Indoor air environments contain a wide variety of microorganisms such as bacteria, fungi, and viruses in which some of them can affect the human health. Filtration is considered as one of the most common methods to remove microorganisms in these environments. The purpose of current study was to investigation the neat and photocatalytic HEPA filters performance at different face ve...

[ 8 ] - اثرات اصلاح اسیدی کربن فعال در جذب سطحی گاز بیهوشی سووفلوران

Introduction: Anesthetic gases used in hospitals include N2O and halogenated hydrocarbons (such as sevoflurane) which can be released through leakages and uncontrolled exhalation by the patient into the ambient air of clinical staff. These gases have greenhouse effect and damage to the ozone layer and serious risks such as reproductive, preterm delivery and fetal abnormalities and increased spo...

[ 9 ] - تعیین شاخص بهینه برای ارزیابی استرس حرارتی با توجه به پارامترهای فیزیولوژیک در صنایع فولاد

Introduction: Heat stress is one of the hazardous agents in the steel industries which can threaten the health and safety of workers and lead to serious occupational diseases. The aim of the study was to assess the heat stress in the steel industries and compare PHS (Physiological Strain Index), WBGT (Wet-Bulb Globe Temperature), DI (Discomfort Index) and HSI (Heat Stress Index) indices for the...

[ 10 ] - بررسی پارامترهای موثر بر فیلتراسیون نانو ذرات از هوا با استفاده از فیلترهای نانولیفی پلی اورتان

Introduction: Electrospun nanofibers are suitable option to synthesize filtering mats for nanoparticles. This study was aimed to fabricate polyurethane nanofiber mats through electrospinning process and to investigate the effect of different parameters such as packing density, face velocity and particle type on the filtration efficiency and quality factor of electrospun polyurethane nanofiber m...

[ 11 ] - اعتبار سنجی شاخص آنتالپی محیط در ارزیابی استرس های گرمایی با استفاده از شاخص WBGT و دمای عمقی بدن: مطالعه موردی در یک ناحیه گرم و خشک

Introduction: Considering the necessity of evaluating novel thermal indices for different individual and environmental conditions, the aim of this study was validation of a new enthalpy index for evaluation of heat stress in hot and dry climate. Material and Method: In this descriptive analytical 97 city services outdoor workers were randomly selected and evaluated in spring and summer sea...

[ 12 ] - ارزیابی تأثیر تابش UVC به سطح فیلترهای هپا جهت حذف میکروارگانیسم‌ها

Introduction: Nowadays, HEPA filters is used in hospitals, clean rooms, microbiology hoods, ventilation of surgery rooms, and Pharmacy for removing microorganisms and reduce health hazard. The aim of this study is to increase the efficiency of HEPA filters with UVC radiation to reduce the density of airborne microorganisms. Material and Method:  The closed–loop chamber was made to evaluate S...

[ 13 ] - ارزیابی مقایسه ای مواجهه جوش‌کاران با فیوم‌های جوش‌کاری براساس تراکم جرمی و عددی

Introduction: Nowadays, Shielded Metal Arc Welding (SMAW) is the most widely used arc welding. During the welding operation, typically, various harmful agents such as fumes, gases, heat, sound and ultraviolet radiation are produced of which fume is the most important component from the viewpoint of occupational health. The present study aims to compare the number and the mass concentration emit...

[ 14 ] - اعتبار سنجی شاخص Humidex در ارزیابی استرس گرمایی مشاغل روباز در نواحی بیابانی و نیمه بیابانی کشور ایران

Introduction: Regarding development of several thermal indices and limitations of each, in this research applicability and validity of temperature- humidity index (Humidex) were examined against the standard heat index, Wet Bulb Globe Temperature -WBGT, as well as tympanic temperature of subjects. Material and Method:  This cross-sectional study was done on 163 subjects at spring and summer ...

[ 15 ] - ارزیابی ظرفیت جذب نانوگرافن و نانو گرافن اکساید برای حذف زایلن از هوا و مقایسه آنها با جاذب استاندارد کربن فعال به منظور معرفی جاذب بهینه

Introduction: Volatile organic compounds from industrial activities are one of the most important pollutants released into the air and have adverse effects on human and environment. Therefore, they should be removed before releasing into atmosphere. The aim of the study was to evaluate xylene removal from air by nano-grapheme and nano-graphene oxide in comparison with activated carbon adsorbent...

[ 16 ] - امکان سنجی حذف بخارات زایلن از هوا بر روی جاذب نانوکربن اکتیو در مقایسه با جاذب کربن اکتیو مورد تایید NIOSH

Introduction: Volatile organic compounds such as xylene are one of the main air pollutants. Adsorption method are of the most common methods used in the control of volatile organic compounds. The aim of this study was to investigate the xylene removal from air through nano activated carbon adsorbent in comparison with NIOSH approved carbon adsorbent.   Material and Method: Xylene adsorption...

[ 17 ] - بررسی راندمان بیوراکتور دو فازی همزن دار به منظور تصفیه بخارات گزیلن از جریان هوا با بستری از سودوموناس پتیدا

Introduction: Volatile organic compounds such as xylene, which are the main constituents of the oil and petrochemical industries, have serious impacts on health and can cause adverse effects on the environment. It is clear that release of these compounds into the environment should be controlled. The two-phases partitioning stirred tank bio-reactor is one of the newest methods for treating thes...

[ 18 ] - ارزیابی استرس حرارتی در شاغلین کارگاه های آجرپزی بر اساس شاخص WBGT در شهرستان قم

Introduction: Heat stress is considered as a serious risk factor to the health and safety of workers in most working environments, especially in outdoor works and jobs that workers are exposed to heat due to the working process. This study aimed to evaluate heat stress among workers of brick-manufacturing units in Qom city based on WBGT index as well as the relationship between WBGT and physiol...

[ 19 ] - بررسی علایم عصبی - رفتاری جوشکاران در معرض مواجه با منگنز

Introduction: Occupational exposure to manganese can cause neurobehavioral symptoms. The aim of present study was to survey neurobehavioral symptoms of welders exposed to manganese- containing welding fumes and compare the frequency of these symptoms with unexposed group. .Material and Method: Twenty seven of welders as exposed group, and 30 administrative workers as unexposed controls, were p...

[ 20 ] - توسعه فیلتر مدیاهای نانولیفی حاوی نانوذرات برای حذف ذرات از جریان گازی

Background and Objectives: The goal of the present study was to develop nanofibrous media filters containing MgO nanoparticles for future application in removing particles from gas stream. Materials and Methods: Electrospun nanofibers were fabricated using experimental design prepared by Response Surface Methodology. Optimization of electrospinning parameters was conducted for achieving the ...

[ 21 ] - ارزیابی بیوآیروسل‌ها در یکی از بیمارستان‌های شهر تهران

Background and Objectives: Microorganisms are the agents that can cause disruption in the biochemical and physiological reactions through mechanisms such as infection, allergy or toxic properties in the case of entering human body and if the body’s immune system be unable to destroy and eliminate biological agents, illness and even death will occur. This study evaluates air pollution (aerosol a...

[ 22 ] - Occupational Heat Stress in Outdoor Settings Considering the Regional Climate Change in the Future Decades in Iran

Background and aims: Nowadays, global warming and climate change have become one of the controversial topics that have an impact on the health of individuals and the threat to human life. In recent decades, particular attention has been paid to the issue of environmental change and its impact from different perspectives. Many studies have been conducted to study these effects (generally from a ...

[ 23 ] - Comparative study of the Sevoflurane Asorption Capacity on Carbon Media Impregnated with Titanium Oxide Nanoparticles

Introduction: Occupational exposure to sevoflurane as an anesthetic gases in hospitals, dental clinics and veterinary clinics has been reported in various studies. Considering the harmful effects of sevoflurane anesthetic gas on the health of exposed personnel such as reproductive, preterm delivery and fetal abnormalities and increased spontaneous abortion, it is necessary to remove them from t...

[ 24 ] - COMPARISON OF FILTRATION PERFORMANCE BETWEEN NEAT AND PLASMA-TREATED PAN / MGO NANOFIBERS IN THE REMOVAL OF 10 TO 1000 NM PARTICLES

Introduction: The present study aimed to compare the filtration performance between neat hybrid electrospun nanofibers consisting of polyacrylonitrile (PAN) polymer and magnesium oxide (MgO) nanoparticles and plasma treated ones in removing fine particles from the air stream. Methodology: The upper surface of the nanofibers were processed by cold-plasma with a radio frequency power supply (13....

[ 25 ] - Assessment of Dust Holding Capacity of Nanofiber Media and Its Ability to Capture Synthetic Dust

Background and Aim: Evaluation of the performance of these products is mainly based on their efficiency in numerical removal of particles in the range of different sizes. While the most important features of filters are the dust holding capacity, and the ability to remove the mass of particles with different densities, fewer studies have addressed this issue. Therefore, the present study evalua...