مرتضی پور, علی رضا
علوم پزشکی تهران
[ 1 ] - 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...
[ 2 ] - نقش عوامل فردی موثر بر عملکرد شغلی پرستاران. مطالعه موردی: بیمارستانهای منتخب شهر تهران
Abstract Background: Nurses have a key role in health care organizations. Addressing factors affecting the nurses’ job performance is critical to success of health providing systems. The aim of this study is investigating the effect of individual factors on nurses' performance. Methods: 575 employed nurses in Tehran University of Medical Sciences’ elected hospitals were entered in...
[ 3 ] - بررسی پارامترهای مؤثر بر عدم توازن تلاش-پاداش و استرس شغلی ناشی از آن: نتایج پیمایش عوامل روان-اجتماعی در محیط‌های کاری کشور ایران (IPWS)
Background and Objective: Effort-Reward Imbalance (ERI) model is one of the methods for studying occupational stress in the workplaces. Considering there has been no comprehensive study on the determining of effective individual and organizational parameters in Iran, the aim of this survey was to detect the parameters affecting perception of ERI in workers in the workplaces in Iran. Material...
[ 4 ] - Assessing of Sleepiness, Insomnia and Sleep Quality among University Students: Association between Computer Use and Sleep Quality
Purpose: To investigate associations between computer use data and sleep quality among university students. Materials and Methods: This descriptive, cross-sectional study was performed on 312 students of Tehran University of Medical Sciences, Iran. Data was collected using Epworth Sleepiness Scale (ESS), Insomnia Severity Index (TSI), Pittsburgh Sleep Quality Index (PSQI), and a background...
[ 5 ] - اعتیاد به شبکه های اجتماعی و بازی های آنلاین: بررسی درد در ناحیه مچ دست در دانشجویان
Introduction: Nowadays, the use of the Internet among students has become widespread. Addiction to virtual networks and online games can have various consequences, including the threat of musculoskeletal system in these people. The purpose of this study was to determine the effect of addiction to social networks and online games on students' wrist pain. Materials & Methods: This study was con...
[ 6 ] - بررسی روایی و پایایی پرسشنامه دالی (Index Load Activity Driver: DALI) به منظور سنجش بارکار فکری در ارتباط با رانندگان یکی از شرکت های تولیدی
Introduction: Nowadays, the importance of workload has become more apparent in ergonomic studies. Because workload is part of unsafe situation, it can be the cause of the incident. Therefore, its quantification is important in different occupations. This study was conducted to evaluate the validity and reliability of the DALI questionnaire for assessing the mental load of drivers. Methods...
[ 7 ] - Ergonomics in Laparoscopic Surgery: The Case Study in Hospitals of Tehran University of Medical Sciences
Background and Objective: Technological progress and application of the modern surgical techniques have led to more interest in laparoscopy by surgeons and patients. As a result, surgeons might potentially have more complications due to this procedures. Knowledge and practice of ergonomics principles can greatly reduce these problems. With this background in mind, this study evaluated the ergon...
[ 8 ] - Design and validation of a tool for measuring knowledge, attitude and practice (KAP) regarding chemical safety in laboratory
ABSTRACT Due to the increasing use of chemicals in academic laboratories, a tool to measure awareness of students regarding labeling, hazards and characteristics of chemicals is still needed. The aim of this study was to design and validate a questionnaire to the assessing student’s knowledge about chemical hazards. The present study was conducted in two stages of design and evaluation of val...
[ 9 ] - Investigation of Effort-Reward Imbalance Model as predictor of Counterproductive Work Behaviors
Introduction: Nowadays, counterproductive behaviors have become a common and costly position for many organizations, and Managers of organizations are always looking for a suitable and practical solution to reduce this type of behavior in their organization. Due to the importance of the subject, the present study aims to investigate the imbalance of effort and reward as a predictor of counterpr...
[ 10 ] - Studying the relationship between surgeons' mental workload and their productivity: validating the "Surgeon-TLX" tool in Iranian surgeons.
Background and Objectives: The importance of surgical jobs and their high workload is known to many researchers. Until now, various studies have used the NASA TLX for measuring the workload of surgeons. The present study seeks to investigate the relationship between the mental workload of surgeons and their productivity through the validation of specialized tools for this job in Iranian culture...
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