نتایج جستجو برای: cycle of tasks

تعداد نتایج: 21189027  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

ژورنال: طب کار 2022

Introduction: Manual Material handling includes activities in which pushing, pulling, lifting, lowering, carrying, and holding the load, the most common of which is lifting. This study aimed to evaluate the reliability of the KIM-LHC method to identify high-risk manual load lifting tasks. Material and Methods: This cross-sectional study was performed on healthy male workers with a history of m...

Journal: :Current sleep medicine reports 2021

Abstract Purposes of Review This review highlights the effect sex differences in sleep mediated memory consolidation and cognitive performance. In addition, role menstrual cycle fluctuating level sexual hormones (mainly oestrogen progesterone) are stressed. Recent Findings The literature indicates that mediate orchestrate observed performance females comparison with males a variety tasks can al...

Journal: :iranian journal of public health 0
baba mohd deros mohd hafiz ali darliana mohamad dian darina indah daruis

background: this study was an investigation conducted at two oil palm plantations in slim river district, perak, malaysia on the prevalence of back pain among workers in the malaysian oil palm industry. many manual handling activities and tasks performed were not designed ergonomically, thus a high prevalence of musculoskeletal disorders was found among oil palm fresh fruit bunches (ffbs) manua...

Journal: :journal of language and translation 0
nasser minaei department of english, faculty of humanities, garmsar branch, islamic azad university, garmsar, iran ghafour rezaie department of english, faculty of humanities, garmsar branch, islamic azad university, garmsar, iran

one of the most problematic areas in foreign language learning is collocation. it is often seen as arbitrary and an overwhelming obstacle to the achievement of nativelike fluency. current second language (l2) instruction research has encouraged the use of collaborative output tasks in l2 classrooms. this study examined the effects of two types of output tasks (editing and cloze) on the learning...

This study was conducted to investigate the effect of meaning-focused versus form-focused input-oriented and output-oriented task-based instruction on elementary level Iranian EFL Learners’ vocabulary comprehension and recall. For this purpose, a sample of 120 male students from a private school in Tehran was selected through convenience sampling and based on availability. The participants were...

Journal: :journal of industrial engineering, international 2011
m fathi a jahan m.k ariffin n ismail

the task of balancing of assembly lines is well-known in mass production system but this problem is np-hard even for the simple straight line. therefore, utilizing heuristic methods for these problems is totally unquestionable. furthermore, in line with balancing problems, heuristic methods are the foundation of the metaheuristic methods, thus it seems to be necessary to use more efficient heur...

Journal: :health scope 0
seyyed ali moussavi-najarkola department of occupational health, school of medical sciences, shahid beheshti of medical university (sbmu), iran +98-2122432040, [email protected]; department of occupational health, school of medical sciences, shahid beheshti of medical university (sbmu), iran +98-2122432040, [email protected] ramazan mirzaei health promotion research center, zahedan university of medical sciences, iran

background: work-related musculoskeletal disorders (wmsds) are a leading cause of disability and workers compensations. objectives: the research was done in tehran pars-electric factory to prevent inducing wmsds. rapid entire body assessment (reba) was carried out to assess musculoskeletal loads on workers due to their postures, repetition, and force. nordic musculoskeletal questionnaire (nmq) ...

Journal: Physical Treatments 2021

Purpose: It is essential to maintain dynamic stability during walking to perform daily tasks independently. The present study aimed at comparing the spatiotemporal parameters and the values of the vertical ground reaction force (vGRF) as well as determining the time to reach them in ankle-sprain coper and healthy athletes during the stance phase of gait. Methods: A total of 28 female universit...

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