نتایج جستجو برای: borotropic shift

تعداد نتایج: 136756  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده علوم پایه 1389

در این بخش اول این کار ابتدا از واکنش نمک دیازونیوم پاراتولوئیدین و سالیسیل آلدئید پیش-لیگاند آزو 1-(3-فرمیل-4- هیدروکسی فنیل آزو) 4- متیل بنزن (l1)تهیه شده است. واکنش تراکمی l1 با 2-آمینو تیوفنول منجربه فرآورده باز شیف5-(4-متیل فنیل-1-دی آزنیل)-2-{[(2-سولفانیل فنیل)ایمینو] متیل}-1-بنزنول(h2l) گردید. فرمول مولکولی این لیگاند c20h17n3os می باشد. در مرحله بعد از واکنش این لیگاند با نمک هایcd(no3)...

Journal: :international journal of occupational hygiene 0
zahra zamanian department of occupational health engineering , school of health and nutrition, shiraz university of medical sciences, shiraz, iran. mansooreh dehghani department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran. heidar mohammady department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran. mohammadtaghi rezaeiani department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran. hadi daneshmandi department of ergonomics, school of health and nutrition, shiraz university of medical sciences, shiraz, iran.

in today’s advanced world resulting from the improvement of technology, societies tend to encounter a large number of problems and accidents. as we know, university’s security personnel are classified as shift workers and are exposed to health disturbing factors. the aim of this study was investigation of shift work disorders among security personnel of the hospitals affiliated to shiraz univer...

ژورنال: طب کار 2014
حلوانی, غلامحسین, خلیقی, سمیه, سلطانی گردفرامرزی, رضیه, محمدی, زهرا, مهرپرور, امیرهوشنگ,

Background: nowadays, the role of occupational stressors in the creation of problems, diseases, physical and mental disabilities, and its costs especially in high standard and safety- sensitive jobs is obvious. Shift work is a factor which may increase job stress. Therefore, this study was conducted to identify the relationship between shift work and occupational stress among urban taxi driver...

Abdolhessein Pournajaf Ali Mohammad Abbasi Arash Akbarzadeh Faramarz Gharagozlou Leila Omidi Mahsa Hami Mohsen Karchani Saber Moradi Zahra Farahnaki

Background and Objectives: Shift working has the potential to negatively influence the quality of work life among nurses. The purpose of this study was to investigate the outbreak of shift work-related disorders and the relationship between shift work and job satisfaction in nurses of Ilam University’s subsidiary hospitals, in order to identify potential strategies for decreasing risk of health...

امینی, مائده, زایری, فرید, غلامی فشارکی, محمد, کاظم نژاد, انوشیروان,

Background and Objectives: Shift work could threaten health in the long term. The present research aimed to assess the association between shift work and body mass index (BMI) using the multilevel (hierarchical) model during a particular period of time. Methods: The data of this longitudinal study were collected from a sample of Esfahan’s Mobarakeh steel and Polyacryl companies personnel durin...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
habibollah khazaei azita chehri erfan naghshbandy masoud tahmasian

background: health workers ability to provide high quality care can be adversely affected by many factors such as sleep deprivation associated with shift work. the aim of this study was to compare sleep disorders among shift workers and non-shift workers in kermanshah hospital (2005) methods: at first, demographic information of the participants were gathered. 653 volunteers were divided into t...

Journal: :journal of occupational health and epidemiology 0
a ghanbary sartang 1. msc occupational health engineering , bandar abbas, iran. m ashnagar corresponding author(msc industrial psychology, bandar abbas, iran e habibi professor. occupational health engineering, school of health, isfahan university of medical sciences, isfahan, iran. i nowrouzi . bs petroleum engineering, bandar abbas, iran h ghasemi

background: today, obesity is considered as a health problem that increases the risk of some diseases. therefore, identifying the effective factors on obesity is of great importance. shift work is one of the indicators for increased risk of obesity in society and also shift work may cause various health problems for workers in military organizations. the current study aimed to investigate the r...

Journal: :medical journal of islamic republic of iran 0
masoumeh ghiasvand occupational medicine research center, iran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: occupational medicine research center ramin heshmat endocrinology and metabolism research center (emrc), tehran university of medical sciences,tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: endocrinology and metabolism research center (emrc) koroush soleimani aviation medicine doctor, civil aviation organization, tehran, iran.

abstract   background: irregular working hours, including night work and shift work, have been found to be associated with alteration in various levels of biochemical factors. and some studies have showed association between shift work and blood biochemical disturbances in blood. in this epidemiological study we investigated, whether regular schedule of working hours can minimize the associated...

Journal: :iranian red crescent medical journal 0
yahya rasoulzadeh department of occupational health and ergonomics, faculty of health, tabriz university of medical sciences, tabriz, ir iran ahmad bazazan department of occupational health and ergonomics, faculty of health, tabriz university of medical sciences, tabriz, ir iran abdolrasoul safaiyan department of vital statistics and epidemiology, faculty of health, tabriz university of medical sciences, tabriz, ir iran iman dianat department of occupational health and ergonomics, faculty of health, tabriz university of medical sciences, tabriz, ir iran; department of occupational health and ergonomics, faculty of health, tabriz university of medical sciences, tabriz, ir iran. tel: +98-4113357580, fax: +98-4113340634

conclusions the study findings highlight the importance of the mental aspect of fatigue in this working group. these results have possible implications for workers’ health and well-being and for the design of shift work systems, for industrial workers. background shift work is a well-recognized occupational health hazard in both industrialized and industrially developing countries. prolonged wo...

Journal: :international journal of occupational and environment medicine 0
sj mirmohammadi department of occupational medicine, shahid rahnamoun hospital, shahid sadoughi university of medical sciences, yazd ah mehrparvar department of occupational medicine, shahid rahnamoun hospital, shahid sadoughi university of medical sciences, yazd m gharavi department of occupational medicine, shahid rahnamoun hospital, shahid sadoughi university of medical sciences, yazd f fathi department of occupational medicine, shahid rahnamoun hospital, shahid sadoughi university of medical sciences, yazd

background: occupational asthma (oa) is the most common occupational lung disease in developed countries. one of the causative agents is metal fume that may be encountered in steel industries. screening for the oa is mainly performed by questionnaire but in our country spirometry is used more commonly. objective: to compare the diagnostic value of the venables standardized respiratory questionn...

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