منابع مشابه
An epidemiological study of petroleum refinery employees.
A cohort study of 14179 current and former Chevron USA employees at the Richmond and El Segundo, California, refineries was conducted. The cohort consisted of everyone working at either refinery for a minimum of one year. The observed mortality of the cohort, by cause, was compared with the expected based on the United States mortality rates, standardised for age, race, sex, and calendar time. ...
متن کاملSmoking habits, knowledge about and attitudes toward smoking among employees in health institutions in Serbia.
BACKGROUND/AIM According to the number of active smokers, Serbia occupies a high position in Europe, as well as worldwide. More than 47% of adults are smokers according to WHO data, and 33.6% according to the National Health Survey Serbia in 2006. Smoking physicians are setting a bad example to patients, they are uncritical to this habit, rarely ask patients whether they smoke and rarely advise...
متن کاملSmoking habits of nurses.
There is little debate as to the harmful effects of cigarette smoking on health. Most health workers advise their patients to cease the practice. The impact of the advice is however diluted if it is seen to be ignored by the profess ionals themselves. As nurses play an in creasing role in all levels of health care a survey was undertaken to investigate the smoking habits of two groups of nurs...
متن کاملOptimal Scheduling of Refinery Crude-Oil Operations
This thesis deals with the development of mathematical models and algorithms for optimizing refinery crude-oil operations schedules. The problem can be posed as a mixed-integer nonlinear program (MINLP), thus combining two major challenges of operations research: combinatorial search and global optimization. First, we propose a unified modeling approach for scheduling problems that aims at brid...
متن کاملObesity and smoking habits.
SIR,-I have read with great interest the article by Dr. T. Khosia and Professor C. R. Lowe (2 October, p. 10) on smoking and obesity. Our results at the Institute of Directors Medical Centre (Table) do not show the same relationship. There is no convincing difference between any of the smoking classes. The figures have not been broken down into age groups, but we have previously shown that in o...
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ژورنال
عنوان ژورنال: American Journal of Public Health
سال: 1984
ISSN: 0090-0036,1541-0048
DOI: 10.2105/ajph.74.12.1408