نتایج جستجو برای: shift
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in this paper, a bayesian approach is proposed for shift point detection in an inverse gaussian distribution. in this study, the mean parameter of inverse gaussian distribution is assumed to be constant and shift points in shape parameter is considered. first the posterior distribution of shape parameter is obtained. then the bayes estimators are derived under a class of priors and using variou...
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...
Introduction: Shift work is an occupational stressor that influences some workforce. The present study examined shift work disorders among people who work in Hamadan Glass Factory. Materials and Methods: Participants included 210 workers (130 shift workers and 80 day-workers) of Hamadan Glass Factory. The survey of shift workers (SOS) was used to collect information on respondents’ demographic...
background: colorectal cancer (crc) is the second cause of cancer-related deaths worldwide. there have been several studies reporting the proximal tumor shift, especially in western countries. in the present study, we investigated the clinicopathologic and anatomical distributions of colorectal tumors in iranian crc patients. materials and methods: in this retrospective cohort study,258 patient...
background and objectives: today, 24-hours work is an unavoidable component in several industries. night-work is an imperative situation for an important part of workforces. shift-working is called to work at hours out of usual day-work time (7:00 am to 6:00 pm). the present study was a cross sectional descriptive-analytic research, and was carried out in order to investigate sleepiness and cha...
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...
for an n-by-n complex matrix a in a block form with the (possibly) nonzero blocks only on the diagonal above the main one, we consider two other matrices whose nonzero entries are along the diagonal above the main one and consist of the norms or minimum moduli of the diagonal blocks of a. in this paper, we obtain two inequalities relating the numeical radii of these matrices and also determine ...
conclusions according to the results of this study, it seems that shift work can be considered a risk factor for high blood pressure changes. it is recommended that workers who are working in shifts are more at risk and need more supervision. background several factors affect the emergence of high blood pressure, among which include environmental and occupational factors. shift work is currentl...
the main purposes of this study were to investigate health problems and their associated risk factors among employees of iranian petrochemical industries. this cross-sectional study was carried out at 21 iranian petrochemical companies. study population consisted of 3580 workers (including 44.2% shift workers and 55.8% day workers). data on personal details, shift schedule and health problems w...
Feedback with carry shift registers (FCSRs) are a class of finite state devices that are similar to linear feedback shift registers (LFSRs) in their simplicity and statistical randomness, and in that they have algebraic tools for the analysis of their output. In this paper we describe and analyze an alternative architecture for FCSRs that is similar to the Galois architecture for LFSRs. We also...
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