The Circadian Alertness Simulator (CAS) was developed as a practical tool for assessing the risk of diminished alertness at work. Applications of CAS include assessment of operational fatigue risk, work schedule optimization, and fatigue-related accident investigation. Based on the documented work schedules of employees, sleep and alertness patterns are estimated and a cumulative fatigue score ...

The MELCOR code is a detailed system level computer code capable of performing integrated selfconsistent analyses of severe accident progression in commercial nuclear power plants, supporting level 2 probablilistic risk assessment (PRA) studies. Originally developed as a fast running tool with simplified models for performing probabilistic safety analyses and sensitivity studies, MELCOR now emp...

BACKGROUND Homocysteinemia has been established as a risk factor for cardiovascular disorders by the American Heart Association.1 Cerebrovascular accident (stroke) is presently ranked as one of the leading causes of morbidity and mortality worldwide. The aim of this study was to determine homocysteine and folate levels and some basic hematologic parameters in patients who sustain a cerebrovascu...

This study assesses parameters of thyroid function in persons who resided in Ukraine, Belarus, and southern Russia and exposed at 0 to 16 years of age to radioiodine contamination from the Chernobyl accident. Six to eight years after the accident a group of 300 young people who had immigrated to Israel were interviewed, underwent physical and ultrasound thyroid examination, and had their serum ...

A model is developed which permits the quantitative evaluation of the health benefit of bicycle helmet laws. The efficacy of the law is evaluated in terms of the percentage drop in bicycling, the percentage increase in the cost of an accident when not wearing a helmet, and a quantity here called the “bicycling beta.” The approach balances the health benefits of increased safety against the heal...

In this paper, we aim to solve the problem of high-rise building construction project safety risk forecasting. The main innovation of this paper lies in that we convert the project safety risk forecasting problem to a classification problem, and design a novel QPSO-SVM model to implement the classification process. Before predicting the project safety risk, we present an index system, which con...

INTRODUCTION Pain is a common occurrence in trauma victims that provokes harmful effects on the body. However, there is a gap in the literature about this problem, which is still underevaluated and undertreated in Brazil, especially concerning the use of opioids. OBJECTIVES To estimate pain intensity and the use of analgesia in traffic accident victims. MATERIALS AND METHODS A prospective s...

BACKGROUND Currently it is not unusual for general aviation pilots in the United States to continue to fly beyond the age of 70, even into their 80s and 90s. Pilots have regular examinations according to protocols which do not specify special or additional requirements for pilots over 70 yr of age. Additionally, the third class medical reforms passed by the U.S. Senate on 15 July 2016 could pot...