منابع مشابه
Health risks of passive smoking.
Passive or involuntary smoking is the inhalation of smoke which escapes directly into the air from the lit end of a burning cigarette. This unfiltered smoke contains the same toxic components of the mainstream smoke inhaled directly by the smoker, including numerous carcinogens, many in greater concentrations. It has long been known that exposure to this type of smoke leads to increased respira...
متن کاملeffect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولPassive smoking and children's health.
Tabagism is one of the greatest public health problems at the present time because this is the most important cause of preventabel deaths worldwide. Due to its impact on the health and welfare of all, the act of smoking causes problems for society, including that children, without being able to enjoy the freedom of choice, eventually become compulsory passive smokers since its conception. This ...
متن کاملThe Acute Effect of Passive Smoking on QT Dispersion in 95 Healthy Men
Background: Passive cigarette smoking is a known cause of a variety of diseases. However, most of the studies done in this field have focused on its chronic effects on human health. Studies considering the acute effect of smoking on QT dispersion, on the other hand, with its known predictive role in the occurrence ventricular arrhythmia and sudden cardiac death are sparse. Objectives: This st...
متن کاملEffects of passive smoking on health of children.
Analysis of data on the effects of passive smoking obtained in preadolescent children from the Harvard Six-Cities Study demonstrates an exposure-response relationship between the number of smokers in the household and the reporting rates for doctor-diagnosed respiratory illness before age 2, history of bronchitis, wheeze most days and nights apart from colds, and a composite of symptoms defined...
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ژورنال
عنوان ژورنال: BMJ
سال: 2003
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.326.7398.1048