safety issues have always been put forward as one of the major problems and primary concerns in construction industries in many countries. this paper will focus on the impact of safety training on safety climate and its relevant factors in two sites of a construction firm. the health and safety executive (hse) guide to safety climate tool that had been validated in iran was used to determine th...

Aim: Angiogenesis is an essential prerequisite for endometrial development and differentiation. Absence of optimum endometrial perfusion can be one of the important reasons behind the patients with unexplained infertility. The present study was undertaken to identify the endometrial vascularity by Doppler and find its relation with serum VEGF in infertile women. Materials And Methods: 60 Patien...

OBJECTIVE To examine the quality of evidence and the variability in the off-label use of intravitreal bevacizumab for retinopathy of prematurity (ROP). METHODS A wide review of the literature was performed using Pubmed, Medline, and Cochrane database, using the words vascular endothelial growth factor (VEGF), retinopathy of prematurity, treatment and bevacizumab. RESULTS Case reports, case ...

The traditional surrogate measures of safety (like number of vehicles in dilemma zone) fail to quantify the risk of crash. Traffic conflict has been proposed as an improved surrogate measure of safety for operations at isolated intersections to quantify the risk. This paper develops a dilemma zone hazard function estimating procedure to obtain the probability of traffic conflict occurring. This...

8 Increasing oil temperature and heating duration in deep-fat frying of potato chips can improve textural quality but worsen the chemical safety of acrylamide formation. Optimal design of this complex process is formulated as a non-linear constrained optimization problem where the objective is to compute the oil temperature profile that guarantees the desired final moisture content while minimi...

background: high-risk unsafe behaviors (hrubs) have been known as the main cause of occupational accidents. considering the financial and societal costs of accidents and the limitations of available resources, there is an urgent need for managing unsafe behaviors at workplaces. the aim of the present study was to find strategies for decreasing the rate of hrubs using an integrated approach of s...

Workplace safety performance is computed using frequency rate (FR) and severity rate (SR). Only work time lost due to occupational incidents that need to be reported is counted. FR and SR are the 2 most important safety performance indicators that are applied universally; however, calculations differ from country to country. All injuries and time lost should be considered while calculating safe...

Optimally minimizing delay times at signalized intersections can significantly improve both traffic flow and safety. However, most traffic flow optimizing tools do not measure the effect on safety. This study uses nonlinear programming (NLP) algorithms to optimally minimize delay times and employs both Safety performance functions (SPFs) and empirical Bayes (EB) before-after methodology to meas...

In this paper, first, an approximation formula for the amplification factor of surface soil is proposed. However, since most traditional houses are located on good condition, lower limit 1.23 may be acceptable in reality. On other hand, large sites hardly related to shaking area during Hanaore-fault-zone earthquake which deeply safety Kyoto. We also pointed out that increase bearing capacity de...

the vital need for river management is understood and predict of bank erosion processes. almost models will not be able to evaluate bank erosion,accurately. bstem model is the most usable model in many of river engineering projects in the world. necessary data for this model are related to driving and resisting forces controlled by hydraulic and geotechnical processes. these data include geomet...