بهشتی, محمد حسین
دانشگاه علوم پزشکی گناباد، گناباد ایران
[ 1 ] - اثر صدا با فرکانس های مختلف بر توجه انتخابی و زمان واکنش انسان
Background and aims: Sound is one of the most effective exogenous factors affecting brain processing mechanisms, including attention that affecting human error and occupational accidents. The purpose of this study was to investigate the effect of sound frequency on noise annoiance, selective attention and human response time. Methods: This research is an interventional study that was con...
[ 2 ] - مدلسازی پیامد نشت هگزان از مخازن ذخیره هگزان و تدوین برنامه واکنش در شرایط اضطراری در یک مجتمع پتروشیمی (مطالعه موردی)
Background and aims: Leakage of toxic and hazardous substances in the chemical and process industries always had been one of the factors threatening the workers and residents of the industries. The purpose of this study is modeling of hexane emissions planning emergency response program. Methods: In this study we describes the factors affecting discharging release of material and ALOHA ...
[ 3 ] - بررسی مهم ترین علل بی‌واسطه موثر بر حوادث شغلی بر اساس نمودار پارتو
Background and aims : Every year many people suffer from numerous injuries in occupational accidents. Determination of factors that can cause the most problems in a process is an important step to improve the situation. Pareto chart can be used to explore issues that can cause most of the problems. The aim of this study is to investigate occupational accidents in Gonabad using Pareto chart. ...
[ 4 ] - بررسی اپیدمیولوژیکی حوادث ساختمان سازی شهرستان قم و ارائه الگوریتمی جهت ثبت حوادث
Background and aims: Work related accidents in the line of duty in the workplace occur and leading to fatal or non-fatal injuries. The aim of this study is investigation of the epidemiological accidents recorded in Qom Insurance Agency and provides an appropriate algorithm for accidents recordation. Methods: In this descriptive – analytical study, all the accidents recorded in the Qom Insuranc...
[ 5 ] - بررسی محدوده پیامدهای انفجار، اشتعال و نشت گاز در کپسول های 2/26 لیتری گاز مایع با رویکرد پدافند غیرعامل
زمینه و هدف: آگاهی از حداکثر شعاع های حریق، انفجار و نشر مواد سمی می تواند نقش بسیار با اهمیتی در عملیاتی نمودن الزامات پدافند غیرعامل شهری به منظور کاهش آسیب‌پذیری در حوادث داشته باشد. هدف از این مطالعه مدلسازی محدوده پیامدهای انفجار، اشتعال و نشت گاز در کپسول های 2/26 لیتری گاز مایع با رویکرد پدافند غیر عامل است. روش‌ها: در این مطالعه ضمن تشریح عوامل موثر بر تخلیه و انتشار مواد، نرم افزارAL...
[ 6 ] - ارزیابی میزان مواجهه کاربران تیلر با ارتعاش
چکیده : تیلر یک تراکتور دستی چند منظوره است که برای شخم زدن زمین و فعالیتهای دیگر کشاورزی استفاده می شود. کاربران تیلر در معرض مواجهه با ارتعاش و عوارض ناشی از آن قرار دارند هدف از این مطالعه ارزیابی مواجهه با ارتعاش در کاربران تیلر می باشد. در این مطالعه 40 کاربر تیلر مورد بررسی قرار گرفتند و پارامترهای مربوط به ارتعاش دست و بازو و کل بدن در حالتها و جهت های مختلف کاری اندازه گیری و با میزان ...
[ 7 ] - Investigation of the Accidents Recorded at an Emergency Management Center Using the Pareto Chart: A Cross-Sectional Study in Gonabad, Iran, During 2014-2016
Background: This study investigated the accidents recorded at the Gonabad Hospital Management Center for Hospital Management from 2014 to 2016, and identified important causes or parameters that influenced the incidence of accidents using the Pareto chart. Materials and Methods: This descriptive and analytic study examined 25,414 incidents recorded at the Gonabad Hospital Management Center. Th...
[ 8 ] - Investigation of the accidents recorded in units affiliated with Torbat Heydariyeh University of Medical Sciences, Iran
Background: Accidents are a major cause of death, injury and disability. This study was conducted to examine the epidemiology of injuries due to accidents in units affiliated with Torbat Heydariyeh University of Medical Sciences, Iran. Materials and Methods: In this cross-sectional study, all patients in units affiliated with Torbat Heydariyeh University of Medical Sciences were studied from M...
[ 9 ] - Effect of health, safety, and environment management system training on safety climate in a mine in Yazd Province, Iran
Background: Today, with the development of technology, the presence and role of human resources has been highlighted in industrial environments. Hence, the importance of safety culture is growing. Mining is the one of the most dangerous occupations. Therefore, this study was performed to determine the effect of health, safety, and environment management system (HSE-MS) on safety climate in one ...
[ 10 ] - Risk assessment of musculoskeletal disorders by OVAKO Working posture Analysis System OWAS and evaluate the effect of ergonomic training on posture of farmers
Background: The agricultural sector is one of the most important sectors in production. The safety and health of farmers are important factors that can cause a significant increase in efficiency and productivity. The aim of this study was the assessment of musculoskeletal disorders (MSDs) using the OVAKO Working Posture Analysis System (OWAS) and evaluation of the effect of ergonomic training o...
[ 11 ] - Assessment of hearing loss among taxi and agency drivers in a city in northern Iran in 2011
Background: Taxi drivers have the most important role in the public transport services. They are exposed to various harmful agents and occupational hazards. Noise is a harmful occupational factors and hearing loss is its most important effect. Protection of drivers against hearing loss is essential. This study was performed to determine the prevalence of hearing loss among taxi and agency drive...
[ 12 ] - Performance loss among workers due to heat stress in high-temperature workplaces
Background: Heat stress is one of the harmful factors present in many workplaces. It can lead to performance loss and low functionality of the labor force. Therefore, the aim of this study was to evaluate exposure to heat stress and its consequent performance loss among workers functioning in indoor high-temperature workplaces. Materials and Methods: This descriptive, analytical study was co...
[ 13 ] - Semi-quantitative risk assessment of health exposure to hazardous chemical agents in a petrochemical plant
Background: Chemical contaminants present in the work environments include gases, vapors, and solid and liquid suspended particles. The number of factories producing chemicals has increased significantly. Each year, new products are introduced into the market. Consequently, the number of employees at risk of exposure to these materials is increased. Hazardous chemicals are used in the petrochem...
[ 14 ] - Evaluation of stress, anxiety, and depression among workers of one copper mine in Kerman Province, Iran, in 2014
Background: The workers of mines, during a working day, are exposed to stress and psychological pressure that certainly affect the efficiency of their work. This study aimed to determine the level of stress, anxiety, and depression in workers of one copper mine in Kerman Province, Iran. Materials and Methods: In this cross-sectional study, 250 workers of the operation unit of one copper mine...
[ 15 ] - Investigation of biomechanical risk factors for musculoskeletal disorders in the plasterer of Neyshabur, Iran, in 2014
Background: Plasterers are at risk of musculoskeletal disorders (MSDs) due to the nature of their occupation and ergonomic factors. The purpose of this study was to evaluate the biomechanical risk factors for MSDs among plasterers. Materials and Methods: In this descriptive study, 70 plasterers from Neyshabur, Iran, were studied in 2014. The Nordic Musculoskeletal Questionnaire (NMQ) was use...
[ 16 ] - The role of personality traits and demographic factors in occupational stress
Background: The use of psychology in the workplace and accurate scientific findings in this field, in addition to reducing work-related diseases, can promote the performance of employees. Nursing is a stressful job and can be the cause of physical and mental disorders. This study investigates the relationship of personality traits and demographic factors with occupational stress. Materials a...
[ 17 ] - Evaluating the potential risk of musculoskeletal disorders among bakers according to LUBA and ACGIH-HAL indices
Background: Bakers, due to the nature of their jobs, are at risk of musculoskeletal disorders (MSDs) caused by ergonomic factors. The purpose of this study was to evaluate the biomechanical risk factors for MSDs in bakers. Materials and Methods: In the current study, all Sangak, Taftoon, and Lavash bread bakeries in Gonabad, Iran, were selected based on census method. Then, hierarchical task...
[ 18 ] - Workload, occupational stress, and general health of female employees of public welfare centers
Background: The employees of welfare centers, due to the special conditions of their work, may be exposed to excessive occupational stress and workload . Thus, the aim of this study was to determine the effect of workload and occupational stress on the general health of female employees of public welfare centers. Materials and Methods: This was a correlational research on 63 fe...
[ 19 ] - Investigation of stress and heat strain in asphalt workers
Heat stress is one of the harmful factors in workplaces. Asphalt workers are exposed to thermal stress due to the open environment and process. The aim of this study was to assess the heat stress and strain in asphalt workers. This study was conducted on 29 employees of asphalt workstation. The heat stress was measured based on Wet-Bulb Globe Temperature (WBGT). Also, physiological parameters s...
[ 20 ] - شناسایی ریسک‌فاکتورهای بیومکانیکی بروز اختلالات اسکلتی- عضلانی در حرفه نانوایی براساس شاخص‌های JSI و OCRA
اهداف: کارگران حرفه نانوایی به دلیلی ماهیت شغل خود در معرض اختلالات اسکلتی- عضلانی ناشی از عوامل ارگونومی قرار دارند. هدف از انجام این پژوهش مطالعه ریسک‌فاکتورهای اختلالات اسکلتی- عضلانی در حرفه نانوایی بود. مواد و روش‌ها: این مطالعه توصیفی- تحلیلی از نوع مقطعی در کلیه نانوایی‌های شهر گناباد در سال 1394 انجام شد و 28 نانوایی به روش سرشماری مورد مطالعه قرار گرفتند. از 3 روش جمع‌آوری اطلاعات مشا...
[ 21 ] - بررسی حوادث کارگاه‌های ساختمانی استان قم بر اساس نمودار پارتو (سال 1388 تا 1391)
Introduction: Each year, many people suffer from numerous injuries and damages in construction industry. Determination of factors that cause the most problems in a process is the most important step to improve the situation. Pareto chart can be used to explore factors causing most of the problems. The aim of this study was to survey construction accidents in Qom city using Pareto chart. Materi...
[ 22 ] - بررسی استرس گرمایی در مشاغل کوچک شهرستان قم
Introduction: Heat stress in workplaces cause multiple problems such as thermal stresses, thermal discomfort and in more severe cases may lead to accidents and diseases related to excessive heat. The aim of this study was to evaluate heat stress adopting WBGT Index in some small enterprise in Qom city and also to examine the relationship between WBGT and physiological indices. . Material and M...
[ 23 ] - ارزیابی مواجهه رانندگان تراکتور مسی فرگوسن مدل 165 با ارتعاش کل بدن
Introduction: Tractor drivers are continuously exposed to whole body vibration during driving that, this may cause disorders in the system of musculoskeletal, nervous, circulatory and occupational diseases. The aim of this study was to evaluate exposed to whole body vibration among tractor driver. .Material and Method: In this study, whole-body vibration parameters such as root mean square (...
[ 24 ] - ارزیابی مواجهه کاربران تیلر با ارتعاش دست و بازو
Introduction: The power tiller is a multipurpose hand tractor designed primarily for rotary tilling and other farm operations. Vibration, transmitted from the handles of the tiller to the operators’ body, causes many injuries such as, pain, musculoskeletal disorders and white finger syndrome. The aim of this study was to evaluate the hand-arm vibration exposure in the operators of tiller model...
[ 25 ] - The effect of mental workload on occupational accidents among nurses in hospitals of Kerman, Iran
Background and objectives: Nurses due to the nature of their job faced with significant mental workload. This can cause nursing occupational accidents. The aim of this study was to explore the effects of mental workload on occupational accidents in teaching hospital nurses. Methods: This cross-sectional descriptive-analytic study was conducted from May to...
[ 26 ] - Compliance of Children's Play Equipment in Urban Parks of Gonabad with National Safety Standards (Case Study)
Background and aims: Parks are a place for children's play and activity, so making safety these environments that are somehow a social work environment is one of the requirements of environmental planning. Making safety these environments is one of the requirements of environmental planning. It will be necessary to provide quality and sustainable conditions for park playgrounds to improve the s...
[ 27 ] - The effect of sound with different frequencies on men and women noise annoyance
Sound is an effective exogenous factors which affecting human brain processing mechanisms. This research was quasi experimental study that was carried out among 70 students to evaluate the effect of sound frequency on human noise annoyance. Noise annoyance degree was measured during exposure to sound at various frequencies of 500, 1000, 2000, 4000 and 8000 Hz. Sound.exe software was used to det...
[ 28 ] - Evaluation of noise pollution levels before and after corrective actions in the operational units of tanks and petroleum products transportation in Abadan Oil refining Company
Introduction & Objective: Noise exposure, risk exposure in a wide range of work station, especially oil and gas industry and related companies is considered. This study was carried out to evaluate the noise before and after corrective action in 11 operational units of tanks and transportation in Abadan oil refining company. Methods: First, the basic information including the location of noise ...
[ 29 ] - The Assessment of Heat stress in the employees of the confectionery workshops based on WBGT and DI Indexes (A case study of Ilam city)
Background and Objective: Inappropriate atmospheric conditions are harmful factors that cause particular problems in certain seasons (summer or winter). The occupation of confectionery in the regions like Ilam causes severe problems due to the heat generated by the nature of the work (synthetic heat-generating processes) and the heat resulting from the climatic conditions in the region. Exposur...
[ 30 ] - Investigating the General Safety of Playground Equipment and its Compliance With National Standards
Background: Accidents caused by children’s play equipment are a severe health threat to them. Implementing the requirements of the safety standards is necessary to ensure the safety of such equipment. The current study aimed to determine the general safety of playground equipment in general parks in Gonabad City, Iran. We also compared the level of the general safety of this equipment with nati...
[ 31 ] - Effect of light color temperature on selective attention, error rate and reaction time
Investigating the effect of light color temperature on selective attention, error and human reaction time Abstract Background and aims: In humans, the reaction time limit is associated with several factors. It includes the time that takes to stimulate the sensory member, the stimulus effect is transmitted to the brain, then is perceived and the decision is made; consequently, the command resu...
[ 32 ] - Efficacy of 3-Layer Felt Masks Containing Polypropylene Membranes in Particle Filtration with SARS-CoV-2 Size Range
Background and Aim: The use of a mask is an effective measure to reduce the transmission of Covid-19. Today, due to the lack of N95 masks and medical masks with good performance, felt masks are widely used due to their ease of manufacture and low cost. The aim of this study was to determine the effectiveness of 3-layer felt masks containing polypropylene membranes in filtering particle size in ...