نتایج جستجو برای: پرسشنامه sofi
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مقدمه: خستگی درک شده مرتبط با کار، مسئله مهمی است، زیرا میتواند بر کارایی کارگران اثر سو داشته باشد. همچنین، خستگی کارگران یکی از عوامل اصلی رخداد حوادث در محیط های کار شناخته شده است. با توجه به پیامدهای خستگی درک شده مرتبط با کار، ارزیابی خستگی در محیط های کار، زیربنایی ترین اقدام جهت مدیریت ریسک خستگی می باشد. از این رو، این مطالعه با هدف سنجش پایایی و روایی نسخه فارسی پرسشنامه خستگی شغلی س...
سابقه و هدف: خستگی شغلی یکی ازمسائل بسیار مهم محیط های کاری است. مطالعه جنبه های گوناگون خستگی شغلی در رانندگان، به منظور کاهش حوادث جاده ای اهمیت دارد. مواد و روش ها: این مطالعه مقطعی در 420 نفر از رانندگان وسایل نقلیه سنگین صورت گرفت. ابزار گردآوری داده شامل پرسشنامه دموگرافیک و اطلاعات شغلی و پرسشنامه خستگی شغلی swedish occupational fatigue inventory (sofi) می باشد. برای تجزیه و تحلیل داده ه...
Stochastic optical fluctuation imaging (SOFI) is a super-resolution fluorescence imaging technique that makes use of stochastic fluctuations in the emission of the fluorophores. During a SOFI measurement multiple fluorescence images are acquired from the sample, followed by the calculation of the spatiotemporal cumulants of the intensities observed at each position. Compared to other techniques...
Stochastic Optical Fluctuation Imaging (SOFI) is a super-resolution fluorescence microscopy technique which allows to enhance the spatial resolution of an image by evaluating the temporal fluctuations of blinking fluorescent emitters. SOFI is not based on the identification and localization of single molecules such as in the widely used Photoactivation Localization Microsopy (PALM) or Stochasti...
Live-cell imaging of focal adhesions requires a sufficiently high temporal resolution, which remains a challenge for super-resolution microscopy. Here we address this important issue by combining photoactivated localization microscopy (PALM) with super-resolution optical fluctuation imaging (SOFI). Using simulations and fixed-cell focal adhesion images, we investigate the complementarity betwee...
Super-resolution optical fluctuation imaging (SOFI) allows one to perform sub-diffraction fluorescence microscopy of living cells. By analyzing the acquired image sequence with an advanced correlation method, i.e. a high-order cross-cumulant analysis, super-resolution in all three spatial dimensions can be achieved. Here we introduce a software tool for a simple qualitative comparison of SOFI i...
The aim of the present study was to test the structural stability and reliability of the Swedish occupational fatigue inventory (SOFI) for use in a group of Chinese visual display terminal (VDT) workers. A qualified translator was recruited to translate the Chinese version of the SOFI (SOFI-C). The content validity was established with 12 bilingual practitioners and seven professional experts. ...
Introduction: Perceived work-related fatigue is an important issue since it may adversely impact workers’ performance. Additionally, workers’ fatigue is known as a main cause of occupational accidents in workplaces. Considering the consequences of perceived work-related fatigue, assessing fatigue at workplace is critical to work-related fatigue risk management. Therefore, this study...
Super-resolution optical fluctuation imaging (SOFI) provides an elegant way of overcoming the diffraction limit in all three spatial dimensions by computing higher-order cumulants of image sequences of blinking fluorophores acquired with a classical widefield microscope. Previously, three-dimensional (3D) SOFI has been demonstrated by sequential imaging of multiple depth positions. Here we intr...
Focal adhesions are complicated assemblies of hundreds of proteins that allow cells to sense their extracellular matrix and adhere to it. Although most focal adhesion proteins have been identified, their spatial organization in living cells remains challenging to observe. Photo-activated localization microscopy (PALM) is an interesting technique for this purpose, especially since it allows esti...
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